annotate src/undo.c @ 32936:c517845bd10e v9.0.1776

patch 9.0.1776: No support for stable Python 3 ABI Commit: https://github.com/vim/vim/commit/c13b3d1350b60b94fe87f0761ea31c0e7fb6ebf3 Author: Yee Cheng Chin <ychin.git@gmail.com> Date: Sun Aug 20 21:18:38 2023 +0200 patch 9.0.1776: No support for stable Python 3 ABI Problem: No support for stable Python 3 ABI Solution: Support Python 3 stable ABI Commits: 1) Support Python 3 stable ABI to allow mixed version interoperatbility Vim currently supports embedding Python for use with plugins, and the "dynamic" linking option allows the user to specify a locally installed version of Python by setting `pythonthreedll`. However, one caveat is that the Python 3 libs are not binary compatible across minor versions, and mixing versions can potentially be dangerous (e.g. let's say Vim was linked against the Python 3.10 SDK, but the user sets `pythonthreedll` to a 3.11 lib). Usually, nothing bad happens, but in theory this could lead to crashes, memory corruption, and other unpredictable behaviors. It's also difficult for the user to tell something is wrong because Vim has no way of reporting what Python 3 version Vim was linked with. For Vim installed via a package manager, this usually isn't an issue because all the dependencies would already be figured out. For prebuilt Vim binaries like MacVim (my motivation for working on this), AppImage, and Win32 installer this could potentially be an issue as usually a single binary is distributed. This is more tricky when a new Python version is released, as there's a chicken-and-egg issue with deciding what Python version to build against and hard to keep in sync when a new Python version just drops and we have a mix of users of different Python versions, and a user just blindly upgrading to a new Python could lead to bad interactions with Vim. Python 3 does have a solution for this problem: stable ABI / limited API (see https://docs.python.org/3/c-api/stable.html). The C SDK limits the API to a set of functions that are promised to be stable across versions. This pull request adds an ifdef config that allows us to turn it on when building Vim. Vim binaries built with this option should be safe to freely link with any Python 3 libraies without having the constraint of having to use the same minor version. Note: Python 2 has no such concept and this doesn't change how Python 2 integration works (not that there is going to be a new version of Python 2 that would cause compatibility issues in the future anyway). --- Technical details: ====== The stable ABI can be accessed when we compile with the Python 3 limited API (by defining `Py_LIMITED_API`). The Python 3 code (in `if_python3.c` and `if_py_both.h`) would now handle this and switch to limited API mode. Without it set, Vim will still use the full API as before so this is an opt-in change. The main difference is that `PyType_Object` is now an opaque struct that we can't directly create "static types" out of, and we have to create type objects as "heap types" instead. This is because the struct is not stable and changes from version to version (e.g. 3.8 added a `tp_vectorcall` field to it). I had to change all the types to be allocated on the heap instead with just a pointer to them. Other functions are also simply missing in limited API, or they are introduced too late (e.g. `PyUnicode_AsUTF8AndSize` in 3.10) to it that we need some other ways to do the same thing, so I had to abstract a few things into macros, and sometimes re-implement functions like `PyObject_NEW`. One caveat is that in limited API, `OutputType` (used for replacing `sys.stdout`) no longer inherits from `PyStdPrinter_Type` which I don't think has any real issue other than minor differences in how they convert to a string and missing a couple functions like `mode()` and `fileno()`. Also fixed an existing bug where `tp_basicsize` was set incorrectly for `BufferObject`, `TabListObject, `WinListObject`. Technically, there could be a small performance drop, there is a little more indirection with accessing type objects, and some APIs like `PyUnicode_AsUTF8AndSize` are missing, but in practice I didn't see any difference, and any well-written Python plugin should try to avoid excessing callbacks to the `vim` module in Python anyway. I only tested limited API mode down to Python 3.7, which seemes to compile and work fine. I haven't tried earlier Python versions. 2) Fix PyIter_Check on older Python vers / type##Ptr unused warning For PyIter_Check, older versions exposed them as either macros (used in full API), or a function (for use in limited API). A previous change exposed PyIter_Check to the dynamic build because Python just moved it to function-only in 3.10 anyway. Because of that, just make sure we always grab the function in dynamic builds in earlier versions since that's what Python eventually did anyway. 3) Move Py_LIMITED_API define to configure script Can now use --with-python-stable-abi flag to customize what stable ABI version to target. Can also use an env var to do so as well. 4) Show +python/dyn-stable in :version, and allow has() feature query Not sure if the "/dyn-stable" suffix would break things, or whether we should do it another way. Or just don't show it in version and rely on has() feature checking. 5) Documentation first draft. Still need to implement v:python3_version 6) Fix PyIter_Check build breaks when compiling against Python 3.8 7) Add CI coverage stable ABI on Linux/Windows / make configurable on Windows This adds configurable options for Windows make files (both MinGW and MSVC). CI will also now exercise both traditional full API and stable ABI for Linux and Windows in the matrix for coverage. Also added a "dynamic" option to Linux matrix as a drive-by change to make other scripting languages like Ruby / Perl testable under both static and dynamic builds. 8) Fix inaccuracy in Windows docs Python's own docs are confusing but you don't actually want to use `python3.dll` for the dynamic linkage. 9) Add generated autoconf file 10) Add v:python3_version support This variable indicates the version of Python3 that Vim was built against (PY_VERSION_HEX), and will be useful to check whether the Python library you are loading in dynamically actually fits it. When built with stable ABI, it will be the limited ABI version instead (`Py_LIMITED_API`), which indicates the minimum version of Python 3 the user should have, rather than the exact match. When stable ABI is used, we won't be exposing PY_VERSION_HEX in this var because it just doesn't seem necessary to do so (the whole point of stable ABI is the promise that it will work across versions), and I don't want to confuse the user with too many variables. Also, cleaned up some documentation, and added help tags. 11) Fix Python 3.7 compat issues Fix a couple issues when using limited API < 3.8 - Crash on exit: In Python 3.7, if a heap-allocated type is destroyed before all instances are, it would cause a crash later. This happens when we destroyed `OptionsType` before calling `Py_Finalize` when using the limited API. To make it worse, later versions changed the semantics and now each instance has a strong reference to its own type and the recommendation has changed to have each instance de-ref its own type and have its type in GC traversal. To avoid dealing with these cross-version variations, we just don't free the heap type. They are static types in non-limited-API anyway and are designed to last through the entirety of the app, and we also don't restart the Python runtime and therefore do not need it to have absolutely 0 leaks. See: - https://docs.python.org/3/whatsnew/3.8.html#changes-in-the-c-api - https://docs.python.org/3/whatsnew/3.9.html#changes-in-the-c-api - PyIter_Check: This function is not provided in limited APIs older than 3.8. Previously I was trying to mock it out using manual PyType_GetSlot() but it was brittle and also does not actually work properly for static types (it will generate a Python error). Just return false. It does mean using limited API < 3.8 is not recommended as you lose the functionality to handle iterators, but from playing with plugins I couldn't find it to be an issue. - Fix loading of PyIter_Check so it will be done when limited API < 3.8. Otherwise loading a 3.7 Python lib will fail even if limited API was specified to use it. 12) Make sure to only load `PyUnicode_AsUTF8AndSize` in needed in limited API We don't use this function unless limited API >= 3.10, but we were loading it regardless. Usually it's ok in Unix-like systems where Python just has a single lib that we load from, but in Windows where there is a separate python3.dll this would not work as the symbol would not have been exposed in this more limited DLL file. This makes it much clearer under what condition is this function needed. closes: #12032 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
author Christian Brabandt <cb@256bit.org>
date Sun, 20 Aug 2023 21:30:04 +0200
parents b80d18055370
children 8303936dbd64
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * undo.c: multi level undo facility
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12 *
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13 * The saved lines are stored in a list of lists (one for each buffer):
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14 *
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15 * b_u_oldhead------------------------------------------------+
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16 * |
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17 * V
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18 * +--------------+ +--------------+ +--------------+
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19 * b_u_newhead--->| u_header | | u_header | | u_header |
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20 * | uh_next------>| uh_next------>| uh_next---->NULL
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21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev |
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22 * | uh_entry | | uh_entry | | uh_entry |
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23 * +--------|-----+ +--------|-----+ +--------|-----+
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24 * | | |
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25 * V V V
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26 * +--------------+ +--------------+ +--------------+
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27 * | u_entry | | u_entry | | u_entry |
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28 * | ue_next | | ue_next | | ue_next |
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29 * +--------|-----+ +--------|-----+ +--------|-----+
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30 * | | |
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31 * V V V
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32 * +--------------+ NULL NULL
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33 * | u_entry |
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34 * | ue_next |
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35 * +--------|-----+
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36 * |
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37 * V
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38 * etc.
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39 *
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40 * Each u_entry list contains the information for one undo or redo.
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41 * curbuf->b_u_curhead points to the header of the last undo (the next redo),
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42 * or is NULL if nothing has been undone (end of the branch).
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43 *
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44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at
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45 * each point in the list a branch may appear for an alternate to redo. The
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46 * uh_seq field is numbered sequentially to be able to find a newer or older
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47 * branch.
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48 *
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49 * +---------------+ +---------------+
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50 * b_u_oldhead --->| u_header | | u_header |
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51 * | uh_alt_next ---->| uh_alt_next ----> NULL
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52 * NULL <----- uh_alt_prev |<------ uh_alt_prev |
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53 * | uh_prev | | uh_prev |
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54 * +-----|---------+ +-----|---------+
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55 * | |
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56 * V V
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57 * +---------------+ +---------------+
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58 * | u_header | | u_header |
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59 * | uh_alt_next | | uh_alt_next |
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60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev |
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61 * | uh_prev | | uh_prev |
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62 * +-----|---------+ +-----|---------+
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63 * | |
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64 * V V
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65 * NULL +---------------+ +---------------+
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66 * | u_header | | u_header |
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67 * | uh_alt_next ---->| uh_alt_next |
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68 * | uh_alt_prev |<------ uh_alt_prev |
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69 * | uh_prev | | uh_prev |
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70 * +-----|---------+ +-----|---------+
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71 * | |
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72 * etc. etc.
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73 *
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74 *
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75 * All data is allocated and will all be freed when the buffer is unloaded.
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76 */
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77
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78 // Uncomment the next line for including the u_check() function. This warns
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79 // for errors in the debug information.
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80 // #define U_DEBUG 1
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81 #define UH_MAGIC 0x18dade // value for uh_magic when in use
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82 #define UE_MAGIC 0xabc123 // value for ue_magic when in use
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83
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84 // Size of buffer used for encryption.
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85 #define CRYPT_BUF_SIZE 8192
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86
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87 #include "vim.h"
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88
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89 // Structure passed around between functions.
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90 // Avoids passing cryptstate_T when encryption not available.
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91 typedef struct {
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92 buf_T *bi_buf;
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93 FILE *bi_fp;
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94 #ifdef FEAT_CRYPT
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95 cryptstate_T *bi_state;
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96 char_u *bi_buffer; // CRYPT_BUF_SIZE, NULL when not buffering
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97 size_t bi_used; // bytes written to/read from bi_buffer
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98 size_t bi_avail; // bytes available in bi_buffer
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99 #endif
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100 } bufinfo_T;
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101
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102
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103 static void u_unch_branch(u_header_T *uhp);
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104 static u_entry_T *u_get_headentry(void);
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105 static void u_getbot(void);
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106 static void u_doit(int count);
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107 static void u_undoredo(int undo);
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108 static void u_undo_end(int did_undo, int absolute);
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109 static void u_freeheader(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
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110 static void u_freebranch(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
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111 static void u_freeentries(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
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112 static void u_freeentry(u_entry_T *, long);
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113 #ifdef FEAT_PERSISTENT_UNDO
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114 # ifdef FEAT_CRYPT
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115 static int undo_flush(bufinfo_T *bi);
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116 # endif
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117 static int undo_read(bufinfo_T *bi, char_u *buffer, size_t size);
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118 static int serialize_uep(bufinfo_T *bi, u_entry_T *uep);
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119 static u_entry_T *unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name);
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120 static void serialize_pos(bufinfo_T *bi, pos_T pos);
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121 static void unserialize_pos(bufinfo_T *bi, pos_T *pos);
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122 static void serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
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123 static void unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
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124 #endif
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125 static void u_saveline(linenr_T lnum);
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126
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127 #define U_ALLOC_LINE(size) lalloc(size, FALSE)
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128
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129 // used in undo_end() to report number of added and deleted lines
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130 static long u_newcount, u_oldcount;
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131
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132 /*
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133 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
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134 * the action that "u" should do.
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135 */
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136 static int undo_undoes = FALSE;
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137
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138 static int lastmark = 0;
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139
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140 #if defined(U_DEBUG) || defined(PROTO)
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141 /*
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142 * Check the undo structures for being valid. Print a warning when something
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143 * looks wrong.
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144 */
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145 static int seen_b_u_curhead;
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146 static int seen_b_u_newhead;
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147 static int header_count;
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148
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149 static void
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150 u_check_tree(u_header_T *uhp,
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151 u_header_T *exp_uh_next,
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152 u_header_T *exp_uh_alt_prev)
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153 {
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154 u_entry_T *uep;
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155
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156 if (uhp == NULL)
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157 return;
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158 ++header_count;
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159 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
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160 {
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161 emsg("b_u_curhead found twice (looping?)");
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162 return;
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163 }
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164 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
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165 {
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166 emsg("b_u_newhead found twice (looping?)");
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167 return;
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168 }
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169
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170 if (uhp->uh_magic != UH_MAGIC)
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171 emsg("uh_magic wrong (may be using freed memory)");
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172 else
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173 {
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174 // Check pointers back are correct.
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175 if (uhp->uh_next.ptr != exp_uh_next)
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176 {
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177 emsg("uh_next wrong");
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178 smsg("expected: 0x%x, actual: 0x%x",
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179 exp_uh_next, uhp->uh_next.ptr);
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180 }
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181 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
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182 {
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183 emsg("uh_alt_prev wrong");
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184 smsg("expected: 0x%x, actual: 0x%x",
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185 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
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186 }
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187
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188 // Check the undo tree at this header.
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189 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
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190 {
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191 if (uep->ue_magic != UE_MAGIC)
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192 {
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193 emsg("ue_magic wrong (may be using freed memory)");
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194 break;
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195 }
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196 }
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197
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198 // Check the next alt tree.
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199 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp);
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200
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201 // Check the next header in this branch.
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202 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
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203 }
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204 }
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205
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206 static void
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207 u_check(int newhead_may_be_NULL)
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208 {
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209 seen_b_u_newhead = 0;
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210 seen_b_u_curhead = 0;
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211 header_count = 0;
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212
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213 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
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214
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215 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
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216 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
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217 semsg("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
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218 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
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219 semsg("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
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220 if (header_count != curbuf->b_u_numhead)
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221 {
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222 emsg("b_u_numhead invalid");
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223 smsg("expected: %ld, actual: %ld",
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224 (long)header_count, (long)curbuf->b_u_numhead);
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225 }
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226 }
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227 #endif
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228
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229 /*
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230 * Save the current line for both the "u" and "U" command.
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231 * Careful: may trigger autocommands that reload the buffer.
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232 * Returns OK or FAIL.
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233 */
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234 int
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235 u_save_cursor(void)
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236 {
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237 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
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238 (linenr_T)(curwin->w_cursor.lnum + 1)));
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239 }
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240
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241 /*
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242 * Save the lines between "top" and "bot" for both the "u" and "U" command.
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243 * "top" may be 0 and "bot" may be curbuf->b_ml.ml_line_count + 1.
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244 * Careful: may trigger autocommands that reload the buffer.
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245 * Returns FAIL when lines could not be saved, OK otherwise.
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246 */
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247 int
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248 u_save(linenr_T top, linenr_T bot)
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249 {
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250 if (undo_off)
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251 return OK;
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252
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253 if (top >= bot || bot > curbuf->b_ml.ml_line_count + 1)
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254 return FAIL; // rely on caller to give an error message
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255
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256 if (top + 2 == bot)
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257 u_saveline((linenr_T)(top + 1));
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258
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259 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
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260 }
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261
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262 /*
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263 * Save the line "lnum" (used by ":s" and "~" command).
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264 * The line is replaced, so the new bottom line is lnum + 1.
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265 * Careful: may trigger autocommands that reload the buffer.
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266 * Returns FAIL when lines could not be saved, OK otherwise.
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267 */
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268 int
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269 u_savesub(linenr_T lnum)
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270 {
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271 if (undo_off)
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272 return OK;
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273
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274 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
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275 }
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276
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277 /*
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278 * A new line is inserted before line "lnum" (used by :s command).
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279 * The line is inserted, so the new bottom line is lnum + 1.
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280 * Careful: may trigger autocommands that reload the buffer.
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281 * Returns FAIL when lines could not be saved, OK otherwise.
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282 */
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283 int
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284 u_inssub(linenr_T lnum)
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285 {
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286 if (undo_off)
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287 return OK;
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288
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289 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
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290 }
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291
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292 /*
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293 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
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294 * The lines are deleted, so the new bottom line is lnum, unless the buffer
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295 * becomes empty.
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296 * Careful: may trigger autocommands that reload the buffer.
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297 * Returns FAIL when lines could not be saved, OK otherwise.
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298 */
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299 int
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300 u_savedel(linenr_T lnum, long nlines)
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301 {
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302 if (undo_off)
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303 return OK;
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304
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305 return (u_savecommon(lnum - 1, lnum + nlines,
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306 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
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307 }
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308
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309 /*
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310 * Return TRUE when undo is allowed. Otherwise give an error message and
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311 * return FALSE.
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312 */
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313 int
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314 undo_allowed(void)
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315 {
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316 // Don't allow changes when 'modifiable' is off.
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317 if (!curbuf->b_p_ma)
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318 {
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319 emsg(_(e_cannot_make_changes_modifiable_is_off));
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320 return FALSE;
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321 }
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322
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323 #ifdef HAVE_SANDBOX
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324 // In the sandbox it's not allowed to change the text.
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325 if (sandbox != 0)
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326 {
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327 emsg(_(e_not_allowed_in_sandbox));
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328 return FALSE;
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329 }
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330 #endif
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331
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332 // Don't allow changes in the buffer while editing the cmdline. The
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333 // caller of getcmdline() may get confused.
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334 if (textlock != 0)
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335 {
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336 emsg(_(e_not_allowed_to_change_text_or_change_window));
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337 return FALSE;
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338 }
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339
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340 return TRUE;
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341 }
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342
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343 /*
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344 * Get the undolevel value for the current buffer.
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345 */
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346 static long
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347 get_undolevel(void)
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348 {
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349 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL)
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350 return p_ul;
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351 return curbuf->b_p_ul;
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352 }
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353
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354 /*
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355 * u_save_line(): save an allocated copy of line "lnum" into "ul".
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356 * Returns FAIL when out of memory.
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357 */
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358 static int
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359 u_save_line(undoline_T *ul, linenr_T lnum)
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360 {
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361 char_u *line = ml_get(lnum);
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362
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363 if (curbuf->b_ml.ml_line_len == 0)
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364 {
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365 ul->ul_len = 1;
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366 ul->ul_line = vim_strsave((char_u *)"");
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367 }
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368 else
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369 {
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370 // This uses the length in the memline, thus text properties are
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371 // included.
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372 ul->ul_len = curbuf->b_ml.ml_line_len;
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373 ul->ul_line = vim_memsave(line, ul->ul_len);
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374 }
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375 return ul->ul_line == NULL ? FAIL : OK;
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376 }
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377
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378 #ifdef FEAT_PROP_POPUP
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379 /*
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380 * return TRUE if line "lnum" has text property "flags".
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381 */
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382 static int
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383 has_prop_w_flags(linenr_T lnum, int flags)
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384 {
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385 char_u *props;
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386 int i;
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387 int proplen = get_text_props(curbuf, lnum, &props, FALSE);
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388
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diff changeset
389 for (i = 0; i < proplen; ++i)
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diff changeset
390 {
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diff changeset
391 textprop_T prop;
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diff changeset
392
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diff changeset
393 mch_memmove(&prop, props + i * sizeof prop, sizeof prop);
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diff changeset
394 if (prop.tp_flags & flags)
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diff changeset
395 return TRUE;
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diff changeset
396 }
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397 return FALSE;
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diff changeset
398 }
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diff changeset
399 #endif
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400
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diff changeset
401 /*
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parents: 32669
diff changeset
402 * Common code for various ways to save text before a change.
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parents: 32669
diff changeset
403 * "top" is the line above the first changed line.
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Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
404 * "bot" is the line below the last changed line.
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parents: 32669
diff changeset
405 * "newbot" is the new bottom line. Use zero when not known.
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diff changeset
406 * "reload" is TRUE when saving for a buffer reload.
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diff changeset
407 * Careful: may trigger autocommands that reload the buffer.
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diff changeset
408 * Returns FAIL when lines could not be saved, OK otherwise.
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parents: 32669
diff changeset
409 */
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parents: 32669
diff changeset
410 int
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diff changeset
411 u_savecommon(
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diff changeset
412 linenr_T top,
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parents: 32669
diff changeset
413 linenr_T bot,
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parents: 32669
diff changeset
414 linenr_T newbot,
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parents: 32669
diff changeset
415 int reload)
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parents: 32669
diff changeset
416 {
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diff changeset
417 linenr_T lnum;
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diff changeset
418 long i;
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419 u_header_T *uhp;
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diff changeset
420 u_header_T *old_curhead;
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parents: 32669
diff changeset
421 u_entry_T *uep;
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diff changeset
422 u_entry_T *prev_uep;
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diff changeset
423 long size;
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parents: 32669
diff changeset
424
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
425 if (!reload)
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parents: 32669
diff changeset
426 {
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parents: 32669
diff changeset
427 // When making changes is not allowed return FAIL. It's a crude way
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diff changeset
428 // to make all change commands fail.
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parents: 32669
diff changeset
429 if (!undo_allowed())
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parents: 32669
diff changeset
430 return FAIL;
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parents: 32669
diff changeset
431
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diff changeset
432 #ifdef FEAT_NETBEANS_INTG
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diff changeset
433 /*
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diff changeset
434 * Netbeans defines areas that cannot be modified. Bail out here when
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parents: 32669
diff changeset
435 * trying to change text in a guarded area.
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parents: 32669
diff changeset
436 */
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parents: 32669
diff changeset
437 if (netbeans_active())
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parents: 32669
diff changeset
438 {
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parents: 32669
diff changeset
439 if (netbeans_is_guarded(top, bot))
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parents: 32669
diff changeset
440 {
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diff changeset
441 emsg(_(e_region_is_guarded_cannot_modify));
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parents: 32669
diff changeset
442 return FAIL;
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
443 }
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
444 if (curbuf->b_p_ro)
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parents: 32669
diff changeset
445 {
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
446 emsg(_(e_netbeans_does_not_allow_changes_in_read_only_files));
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
447 return FAIL;
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
448 }
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
449 }
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
450 #endif
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parents: 32669
diff changeset
451 #ifdef FEAT_TERMINAL
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parents: 32669
diff changeset
452 // A change in a terminal buffer removes the highlighting.
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parents: 32669
diff changeset
453 term_change_in_curbuf();
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parents: 32669
diff changeset
454 #endif
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
455
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
456 /*
695b50472e85 Fix line endings issue
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parents: 32669
diff changeset
457 * Saving text for undo means we are going to make a change. Give a
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Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
458 * warning for a read-only file before making the change, so that the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
459 * FileChangedRO event can replace the buffer with a read-write version
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
460 * (e.g., obtained from a source control system).
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
461 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
462 change_warning(0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
463 if (bot > curbuf->b_ml.ml_line_count + 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
464 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
465 // This happens when the FileChangedRO autocommand changes the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
466 // file in a way it becomes shorter.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
467 emsg(_(e_line_count_changed_unexpectedly));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
468 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
469 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
470 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
471
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
472 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
473 u_check(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
474 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
475
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
476 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
477 // Include the line above if a text property continues from it.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
478 // Include the line below if a text property continues to it.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
479 if (bot - top > 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
480 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
481 if (top > 0 && has_prop_w_flags(top + 1, TP_FLAG_CONT_PREV))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
482 --top;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
483 if (bot <= curbuf->b_ml.ml_line_count
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
484 && has_prop_w_flags(bot - 1, TP_FLAG_CONT_NEXT))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
485 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
486 ++bot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
487 if (newbot != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
488 ++newbot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
489 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
490 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
491 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
492
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
493 size = bot - top - 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
494
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
495 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
496 * If curbuf->b_u_synced == TRUE make a new header.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
497 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
498 if (curbuf->b_u_synced)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
499 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
500 // Need to create new entry in b_changelist.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
501 curbuf->b_new_change = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
502
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
503 if (get_undolevel() >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
504 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
505 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
506 * Make a new header entry. Do this first so that we don't mess
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
507 * up the undo info when out of memory.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
508 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
509 uhp = U_ALLOC_LINE(sizeof(u_header_T));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
510 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
511 goto nomem;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
512 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
513 uhp->uh_magic = UH_MAGIC;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
514 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
515 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
516 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
517 uhp = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
518
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
519 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
520 * If we undid more than we redid, move the entry lists before and
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
521 * including curbuf->b_u_curhead to an alternate branch.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
522 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
523 old_curhead = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
524 if (old_curhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
525 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
526 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
527 curbuf->b_u_curhead = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
528 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
529
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
530 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
531 * free headers to keep the size right
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
532 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
533 while (curbuf->b_u_numhead > get_undolevel()
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
534 && curbuf->b_u_oldhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
535 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
536 u_header_T *uhfree = curbuf->b_u_oldhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
537
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
538 if (uhfree == old_curhead)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
539 // Can't reconnect the branch, delete all of it.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
540 u_freebranch(curbuf, uhfree, &old_curhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
541 else if (uhfree->uh_alt_next.ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
542 // There is no branch, only free one header.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
543 u_freeheader(curbuf, uhfree, &old_curhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
544 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
545 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
546 // Free the oldest alternate branch as a whole.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
547 while (uhfree->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
548 uhfree = uhfree->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
549 u_freebranch(curbuf, uhfree, &old_curhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
550 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
551 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
552 u_check(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
553 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
554 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
555
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
556 if (uhp == NULL) // no undo at all
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
557 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
558 if (old_curhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
559 u_freebranch(curbuf, old_curhead, NULL);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
560 curbuf->b_u_synced = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
561 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
562 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
563
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
564 uhp->uh_prev.ptr = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
565 uhp->uh_next.ptr = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
566 uhp->uh_alt_next.ptr = old_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
567 if (old_curhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
568 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
569 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
570 if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
571 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
572 old_curhead->uh_alt_prev.ptr = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
573 if (curbuf->b_u_oldhead == old_curhead)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
574 curbuf->b_u_oldhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
575 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
576 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
577 uhp->uh_alt_prev.ptr = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
578 if (curbuf->b_u_newhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
579 curbuf->b_u_newhead->uh_prev.ptr = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
580
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
581 uhp->uh_seq = ++curbuf->b_u_seq_last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
582 curbuf->b_u_seq_cur = uhp->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
583 uhp->uh_time = vim_time();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
584 uhp->uh_save_nr = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
585 curbuf->b_u_time_cur = uhp->uh_time + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
586
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
587 uhp->uh_walk = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
588 uhp->uh_entry = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
589 uhp->uh_getbot_entry = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
590 uhp->uh_cursor = curwin->w_cursor; // save cursor pos. for undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
591 if (virtual_active() && curwin->w_cursor.coladd > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
592 uhp->uh_cursor_vcol = getviscol();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
593 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
594 uhp->uh_cursor_vcol = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
595
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
596 // save changed and buffer empty flag for undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
597 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
598 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
599
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
600 // save named marks and Visual marks for undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
601 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
602 uhp->uh_visual = curbuf->b_visual;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
603
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
604 curbuf->b_u_newhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
605 if (curbuf->b_u_oldhead == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
606 curbuf->b_u_oldhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
607 ++curbuf->b_u_numhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
608 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
609 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
610 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
611 if (get_undolevel() < 0) // no undo at all
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
612 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
613
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
614 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
615 * When saving a single line, and it has been saved just before, it
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
616 * doesn't make sense saving it again. Saves a lot of memory when
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
617 * making lots of changes inside the same line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
618 * This is only possible if the previous change didn't increase or
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
619 * decrease the number of lines.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
620 * Check the ten last changes. More doesn't make sense and takes too
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
621 * long.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
622 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
623 if (size == 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
624 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
625 uep = u_get_headentry();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
626 prev_uep = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
627 for (i = 0; i < 10; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
628 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
629 if (uep == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
630 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
631
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
632 // If lines have been inserted/deleted we give up.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
633 // Also when the line was included in a multi-line save.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
634 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
635 ? (uep->ue_top + uep->ue_size + 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
636 != (uep->ue_bot == 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
637 ? curbuf->b_ml.ml_line_count + 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
638 : uep->ue_bot))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
639 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
640 || (uep->ue_size > 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
641 && top >= uep->ue_top
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
642 && top + 2 <= uep->ue_top + uep->ue_size + 1))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
643 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
644
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
645 // If it's the same line we can skip saving it again.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
646 if (uep->ue_size == 1 && uep->ue_top == top)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
647 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
648 if (i > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
649 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
650 // It's not the last entry: get ue_bot for the last
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
651 // entry now. Following deleted/inserted lines go to
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
652 // the re-used entry.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
653 u_getbot();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
654 curbuf->b_u_synced = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
655
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
656 // Move the found entry to become the last entry. The
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
657 // order of undo/redo doesn't matter for the entries
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
658 // we move it over, since they don't change the line
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
659 // count and don't include this line. It does matter
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
660 // for the found entry if the line count is changed by
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
661 // the executed command.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
662 prev_uep->ue_next = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
663 uep->ue_next = curbuf->b_u_newhead->uh_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
664 curbuf->b_u_newhead->uh_entry = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
665 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
666
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
667 // The executed command may change the line count.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
668 if (newbot != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
669 uep->ue_bot = newbot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
670 else if (bot > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
671 uep->ue_bot = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
672 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
673 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
674 uep->ue_lcount = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
675 curbuf->b_u_newhead->uh_getbot_entry = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
676 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
677 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
678 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
679 prev_uep = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
680 uep = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
681 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
682 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
683
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
684 // find line number for ue_bot for previous u_save()
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
685 u_getbot();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
686 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
687
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
688 #if !defined(UNIX) && !defined(MSWIN)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
689 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
690 * With Amiga we can't handle big undo's, because
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
691 * then u_alloc_line would have to allocate a block larger than 32K
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
692 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
693 if (size >= 8000)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
694 goto nomem;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
695 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
696
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
697 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
698 * add lines in front of entry list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
699 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
700 uep = U_ALLOC_LINE(sizeof(u_entry_T));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
701 if (uep == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
702 goto nomem;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
703 CLEAR_POINTER(uep);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
704 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
705 uep->ue_magic = UE_MAGIC;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
706 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
707
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
708 uep->ue_size = size;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
709 uep->ue_top = top;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
710 if (newbot != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
711 uep->ue_bot = newbot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
712 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
713 * Use 0 for ue_bot if bot is below last line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
714 * Otherwise we have to compute ue_bot later.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
715 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
716 else if (bot > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
717 uep->ue_bot = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
718 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
719 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
720 uep->ue_lcount = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
721 curbuf->b_u_newhead->uh_getbot_entry = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
722 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
723
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
724 if (size > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
725 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
726 if ((uep->ue_array = U_ALLOC_LINE(sizeof(undoline_T) * size)) == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
727 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
728 u_freeentry(uep, 0L);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
729 goto nomem;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
730 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
731 for (i = 0, lnum = top + 1; i < size; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
732 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
733 fast_breakcheck();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
734 if (got_int)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
735 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
736 u_freeentry(uep, i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
737 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
738 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
739 if (u_save_line(&uep->ue_array[i], lnum++) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
740 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
741 u_freeentry(uep, i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
742 goto nomem;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
743 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
744 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
745 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
746 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
747 uep->ue_array = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
748 uep->ue_next = curbuf->b_u_newhead->uh_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
749 curbuf->b_u_newhead->uh_entry = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
750 curbuf->b_u_synced = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
751 undo_undoes = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
752
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
753 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
754 u_check(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
755 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
756 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
757
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
758 nomem:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
759 msg_silent = 0; // must display the prompt
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
760 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
761 == 'y')
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
762 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
763 undo_off = TRUE; // will be reset when character typed
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
764 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
765 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
766 do_outofmem_msg((long_u)0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
767 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
768 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
769
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
770 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
771
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
772 # define UF_START_MAGIC "Vim\237UnDo\345" // magic at start of undofile
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
773 # define UF_START_MAGIC_LEN 9
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
774 # define UF_HEADER_MAGIC 0x5fd0 // magic at start of header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
775 # define UF_HEADER_END_MAGIC 0xe7aa // magic after last header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
776 # define UF_ENTRY_MAGIC 0xf518 // magic at start of entry
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
777 # define UF_ENTRY_END_MAGIC 0x3581 // magic after last entry
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
778 # define UF_VERSION 2 // 2-byte undofile version number
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
779 # define UF_VERSION_CRYPT 0x8002 // idem, encrypted
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
780
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
781 // extra fields for header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
782 # define UF_LAST_SAVE_NR 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
783
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
784 // extra fields for uhp
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
785 # define UHP_SAVE_NR 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
786
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
787 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
788 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE].
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
789 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
790 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
791 u_compute_hash(char_u *hash)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
792 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
793 context_sha256_T ctx;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
794 linenr_T lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
795 char_u *p;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
796
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
797 sha256_start(&ctx);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
798 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
799 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
800 p = ml_get(lnum);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
801 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
802 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
803 sha256_finish(&ctx, hash);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
804 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
805
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
806 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
807 * Return an allocated string of the full path of the target undofile.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
808 * When "reading" is TRUE find the file to read, go over all directories in
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
809 * 'undodir'.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
810 * When "reading" is FALSE use the first name where the directory exists.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
811 * Returns NULL when there is no place to write or no file to read.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
812 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
813 static char_u *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
814 u_get_undo_file_name(char_u *buf_ffname, int reading)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
815 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
816 char_u *dirp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
817 char_u dir_name[IOSIZE + 1];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
818 char_u *munged_name = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
819 char_u *undo_file_name = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
820 int dir_len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
821 char_u *p;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
822 stat_T st;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
823 char_u *ffname = buf_ffname;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
824 #ifdef HAVE_READLINK
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
825 char_u fname_buf[MAXPATHL];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
826 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
827
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
828 if (ffname == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
829 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
830
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
831 #ifdef HAVE_READLINK
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
832 // Expand symlink in the file name, so that we put the undo file with the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
833 // actual file instead of with the symlink.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
834 if (resolve_symlink(ffname, fname_buf) == OK)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
835 ffname = fname_buf;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
836 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
837
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
838 // Loop over 'undodir'. When reading find the first file that exists.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
839 // When not reading use the first directory that exists or ".".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
840 dirp = p_udir;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
841 while (*dirp != NUL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
842 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
843 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ",");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
844 if (dir_len == 1 && dir_name[0] == '.')
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
845 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
846 // Use same directory as the ffname,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
847 // "dir/name" -> "dir/.name.un~"
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
848 undo_file_name = vim_strnsave(ffname, STRLEN(ffname) + 5);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
849 if (undo_file_name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
850 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
851 p = gettail(undo_file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
852 #ifdef VMS
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
853 // VMS can not handle more than one dot in the filenames
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
854 // use "dir/name" -> "dir/_un_name" - add _un_
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
855 // at the beginning to keep the extension
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
856 mch_memmove(p + 4, p, STRLEN(p) + 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
857 mch_memmove(p, "_un_", 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
858
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
859 #else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
860 // Use same directory as the ffname,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
861 // "dir/name" -> "dir/.name.un~"
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
862 mch_memmove(p + 1, p, STRLEN(p) + 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
863 *p = '.';
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
864 STRCAT(p, ".un~");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
865 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
866 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
867 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
868 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
869 dir_name[dir_len] = NUL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
870 if (mch_isdir(dir_name))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
871 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
872 if (munged_name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
873 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
874 munged_name = vim_strsave(ffname);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
875 if (munged_name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
876 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
877 for (p = munged_name; *p != NUL; MB_PTR_ADV(p))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
878 if (vim_ispathsep(*p))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
879 *p = '%';
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
880 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
881 undo_file_name = concat_fnames(dir_name, munged_name, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
882 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
883 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
884
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
885 // When reading check if the file exists.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
886 if (undo_file_name != NULL && (!reading
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
887 || mch_stat((char *)undo_file_name, &st) >= 0))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
888 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
889 VIM_CLEAR(undo_file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
890 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
891
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
892 vim_free(munged_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
893 return undo_file_name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
894 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
895
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
896 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
897 corruption_error(char *mesg, char_u *file_name)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
898 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
899 semsg(_(e_corrupted_undo_file_str_str), mesg, file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
900 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
901
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
902 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
903 u_free_uhp(u_header_T *uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
904 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
905 u_entry_T *nuep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
906 u_entry_T *uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
907
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
908 uep = uhp->uh_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
909 while (uep != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
910 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
911 nuep = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
912 u_freeentry(uep, uep->ue_size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
913 uep = nuep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
914 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
915 vim_free(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
916 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
917
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
918 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
919 * Write a sequence of bytes to the undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
920 * Buffers and encrypts as needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
921 * Returns OK or FAIL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
922 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
923 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
924 undo_write(bufinfo_T *bi, char_u *ptr, size_t len)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
925 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
926 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
927 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
928 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
929 size_t len_todo = len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
930 char_u *p = ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
931
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
932 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
933 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
934 size_t n = CRYPT_BUF_SIZE - bi->bi_used;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
935
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
936 mch_memmove(bi->bi_buffer + bi->bi_used, p, n);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
937 len_todo -= n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
938 p += n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
939 bi->bi_used = CRYPT_BUF_SIZE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
940 if (undo_flush(bi) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
941 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
942 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
943 if (len_todo > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
944 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
945 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
946 bi->bi_used += len_todo;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
947 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
948 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
949 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
950 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
951 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
952 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
953 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
954 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
955
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
956 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
957 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
958 undo_flush(bufinfo_T *bi)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
959 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
960 if (bi->bi_buffer != NULL && bi->bi_state != NULL && bi->bi_used > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
961 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
962 // Last parameter is only used for sodium encryption and that
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
963 // explicitly disables encryption of undofiles.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
964 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
965 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
966 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
967 bi->bi_used = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
968 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
969 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
970 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
971 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
972
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
973 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
974 * Write "ptr[len]" and crypt the bytes when needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
975 * Returns OK or FAIL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
976 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
977 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
978 fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
979 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
980 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
981 char_u *copy;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
982 char_u small_buf[100];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
983 size_t i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
984
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
985 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
986 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
987 // crypting every piece of text separately
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
988 if (len < 100)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
989 copy = small_buf; // no malloc()/free() for short strings
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
990 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
991 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
992 copy = lalloc(len, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
993 if (copy == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
994 return 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
995 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
996 // Last parameter is only used for sodium encryption and that
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
997 // explicitly disables encryption of undofiles.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
998 crypt_encode(bi->bi_state, ptr, len, copy, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
999 i = fwrite(copy, len, (size_t)1, bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1000 if (copy != small_buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1001 vim_free(copy);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1002 return i == 1 ? OK : FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1003 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1004 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1005 return undo_write(bi, ptr, len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1006 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1007
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1008 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1009 * Write a number, MSB first, in "len" bytes.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1010 * Must match with undo_read_?c() functions.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1011 * Returns OK or FAIL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1012 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1013 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1014 undo_write_bytes(bufinfo_T *bi, long_u nr, int len)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1015 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1016 char_u buf[8];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1017 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1018 int bufi = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1019
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1020 for (i = len - 1; i >= 0; --i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1021 buf[bufi++] = (char_u)(nr >> (i * 8));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1022 return undo_write(bi, buf, (size_t)len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1023 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1024
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1025 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1026 * Write the pointer to an undo header. Instead of writing the pointer itself
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1027 * we use the sequence number of the header. This is converted back to
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1028 * pointers when reading. */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1029 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1030 put_header_ptr(bufinfo_T *bi, u_header_T *uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1031 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1032 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1033 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1034
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1035 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1036 undo_read_4c(bufinfo_T *bi)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1037 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1038 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1039 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1040 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1041 char_u buf[4];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1042 int n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1043
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1044 undo_read(bi, buf, (size_t)4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1045 n = ((unsigned)buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1046 return n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1047 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1048 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1049 return get4c(bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1050 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1051
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1052 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1053 undo_read_2c(bufinfo_T *bi)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1054 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1055 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1056 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1057 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1058 char_u buf[2];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1059 int n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1060
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1061 undo_read(bi, buf, (size_t)2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1062 n = (buf[0] << 8) + buf[1];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1063 return n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1064 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1065 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1066 return get2c(bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1067 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1068
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1069 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1070 undo_read_byte(bufinfo_T *bi)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1071 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1072 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1073 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1074 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1075 char_u buf[1];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1076
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1077 undo_read(bi, buf, (size_t)1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1078 return buf[0];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1079 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1080 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1081 return getc(bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1082 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1083
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1084 static time_t
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1085 undo_read_time(bufinfo_T *bi)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1086 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1087 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1088 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1089 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1090 char_u buf[8];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1091 time_t n = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1092 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1093
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1094 undo_read(bi, buf, (size_t)8);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1095 for (i = 0; i < 8; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1096 n = (n << 8) + buf[i];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1097 return n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1098 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1099 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1100 return get8ctime(bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1101 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1102
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1103 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1104 * Read "buffer[size]" from the undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1105 * Return OK or FAIL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1106 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1107 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1108 undo_read(bufinfo_T *bi, char_u *buffer, size_t size)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1109 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1110 int retval = OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1111
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1112 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1113 if (bi->bi_buffer != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1114 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1115 int size_todo = (int)size;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1116 char_u *p = buffer;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1117
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1118 while (size_todo > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1119 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1120 size_t n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1121
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1122 if (bi->bi_used >= bi->bi_avail)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1123 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1124 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1125 if (n == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1126 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1127 retval = FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1128 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1129 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1130 bi->bi_avail = n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1131 bi->bi_used = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1132 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1133 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1134 n = size_todo;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1135 if (n > bi->bi_avail - bi->bi_used)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1136 n = bi->bi_avail - bi->bi_used;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1137 mch_memmove(p, bi->bi_buffer + bi->bi_used, n);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1138 bi->bi_used += n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1139 size_todo -= (int)n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1140 p += n;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1141 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1142 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1143 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1144 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1145 if (fread(buffer, size, 1, bi->bi_fp) != 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1146 retval = FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1147
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1148 if (retval == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1149 // Error may be checked for only later. Fill with zeros,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1150 // so that the reader won't use garbage.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1151 vim_memset(buffer, 0, size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1152 return retval;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1153 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1154
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1155 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1156 * Read a string of length "len" from "bi->bi_fd".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1157 * "len" can be zero to allocate an empty line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1158 * Decrypt the bytes if needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1159 * Append a NUL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1160 * Returns a pointer to allocated memory or NULL for failure.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1161 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1162 static char_u *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1163 read_string_decrypt(bufinfo_T *bi, int len)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1164 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1165 char_u *ptr = alloc(len + 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1166
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1167 if (ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1168 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1169
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1170 if (len > 0 && undo_read(bi, ptr, len) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1171 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1172 vim_free(ptr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1173 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1174 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1175 // In case there are text properties there already is a NUL, but
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1176 // checking for that is more expensive than just adding a dummy byte.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1177 ptr[len] = NUL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1178 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1179 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1180 crypt_decode_inplace(bi->bi_state, ptr, len, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1181 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1182 return ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1183 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1184
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1185 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1186 * Writes the (not encrypted) header and initializes encryption if needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1187 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1188 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1189 serialize_header(bufinfo_T *bi, char_u *hash)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1190 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1191 long len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1192 buf_T *buf = bi->bi_buf;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1193 FILE *fp = bi->bi_fp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1194 char_u time_buf[8];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1195
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1196 // Start writing, first the magic marker and undo info version.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1197 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1198 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1199
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1200 // If the buffer is encrypted then all text bytes following will be
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1201 // encrypted. Numbers and other info is not crypted.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1202 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1203 if (*buf->b_p_key != NUL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1204 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1205 char_u *header;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1206 int header_len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1207
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1208 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1209 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1210 buf->b_p_key, &header, &header_len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1211 if (bi->bi_state == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1212 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1213 len = (long)fwrite(header, (size_t)header_len, (size_t)1, fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1214 vim_free(header);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1215 if (len != 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1216 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1217 crypt_free_state(bi->bi_state);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1218 bi->bi_state = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1219 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1220 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1221
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1222 if (crypt_whole_undofile(crypt_get_method_nr(buf)))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1223 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1224 bi->bi_buffer = alloc(CRYPT_BUF_SIZE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1225 if (bi->bi_buffer == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1226 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1227 crypt_free_state(bi->bi_state);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1228 bi->bi_state = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1229 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1230 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1231 bi->bi_used = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1232 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1233 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1234 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1235 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1236 undo_write_bytes(bi, (long_u)UF_VERSION, 2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1237
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1238
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1239 // Write a hash of the buffer text, so that we can verify it is still the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1240 // same when reading the buffer text.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1241 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1242 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1243
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1244 // buffer-specific data
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1245 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1246 len = buf->b_u_line_ptr.ul_line == NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1247 ? 0L : (long)STRLEN(buf->b_u_line_ptr.ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1248 undo_write_bytes(bi, (long_u)len, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1249 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr.ul_line, (size_t)len)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1250 == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1251 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1252 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1253 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1254
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1255 // Undo structures header data
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1256 put_header_ptr(bi, buf->b_u_oldhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1257 put_header_ptr(bi, buf->b_u_newhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1258 put_header_ptr(bi, buf->b_u_curhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1259
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1260 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1261 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1262 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1263 time_to_bytes(buf->b_u_time_cur, time_buf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1264 undo_write(bi, time_buf, 8);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1265
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1266 // Optional fields.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1267 undo_write_bytes(bi, 4, 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1268 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1269 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1270
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1271 undo_write_bytes(bi, 0, 1); // end marker
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1272
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1273 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1274 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1275
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1276 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1277 serialize_uhp(bufinfo_T *bi, u_header_T *uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1278 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1279 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1280 u_entry_T *uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1281 char_u time_buf[8];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1282
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1283 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1284 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1285
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1286 put_header_ptr(bi, uhp->uh_next.ptr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1287 put_header_ptr(bi, uhp->uh_prev.ptr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1288 put_header_ptr(bi, uhp->uh_alt_next.ptr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1289 put_header_ptr(bi, uhp->uh_alt_prev.ptr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1290 undo_write_bytes(bi, uhp->uh_seq, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1291 serialize_pos(bi, uhp->uh_cursor);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1292 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1293 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1294 // Assume NMARKS will stay the same.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1295 for (i = 0; i < NMARKS; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1296 serialize_pos(bi, uhp->uh_namedm[i]);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1297 serialize_visualinfo(bi, &uhp->uh_visual);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1298 time_to_bytes(uhp->uh_time, time_buf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1299 undo_write(bi, time_buf, 8);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1300
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1301 // Optional fields.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1302 undo_write_bytes(bi, 4, 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1303 undo_write_bytes(bi, UHP_SAVE_NR, 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1304 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1305
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1306 undo_write_bytes(bi, 0, 1); // end marker
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1307
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1308 // Write all the entries.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1309 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1310 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1311 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1312 if (serialize_uep(bi, uep) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1313 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1314 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1315 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1316 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1317 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1318
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1319 static u_header_T *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1320 unserialize_uhp(bufinfo_T *bi, char_u *file_name)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1321 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1322 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1323 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1324 u_entry_T *uep, *last_uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1325 int c;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1326 int error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1327
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1328 uhp = U_ALLOC_LINE(sizeof(u_header_T));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1329 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1330 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1331 CLEAR_POINTER(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1332 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1333 uhp->uh_magic = UH_MAGIC;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1334 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1335 uhp->uh_next.seq = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1336 uhp->uh_prev.seq = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1337 uhp->uh_alt_next.seq = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1338 uhp->uh_alt_prev.seq = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1339 uhp->uh_seq = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1340 if (uhp->uh_seq <= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1341 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1342 corruption_error("uh_seq", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1343 vim_free(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1344 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1345 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1346 unserialize_pos(bi, &uhp->uh_cursor);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1347 uhp->uh_cursor_vcol = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1348 uhp->uh_flags = undo_read_2c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1349 for (i = 0; i < NMARKS; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1350 unserialize_pos(bi, &uhp->uh_namedm[i]);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1351 unserialize_visualinfo(bi, &uhp->uh_visual);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1352 uhp->uh_time = undo_read_time(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1353
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1354 // Optional fields.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1355 for (;;)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1356 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1357 int len = undo_read_byte(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1358 int what;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1359
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1360 if (len == EOF)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1361 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1362 corruption_error("truncated", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1363 u_free_uhp(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1364 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1365 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1366 if (len == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1367 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1368 what = undo_read_byte(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1369 switch (what)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1370 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1371 case UHP_SAVE_NR:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1372 uhp->uh_save_nr = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1373 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1374 default:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1375 // field not supported, skip
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1376 while (--len >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1377 (void)undo_read_byte(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1378 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1379 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1380
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1381 // Unserialize the uep list.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1382 last_uep = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1383 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1384 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1385 error = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1386 uep = unserialize_uep(bi, &error, file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1387 if (last_uep == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1388 uhp->uh_entry = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1389 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1390 last_uep->ue_next = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1391 last_uep = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1392 if (uep == NULL || error)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1393 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1394 u_free_uhp(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1395 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1396 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1397 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1398 if (c != UF_ENTRY_END_MAGIC)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1399 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1400 corruption_error("entry end", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1401 u_free_uhp(uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1402 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1403 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1404
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1405 return uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1406 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1407
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1408 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1409 * Serialize "uep".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1410 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1411 static int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1412 serialize_uep(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1413 bufinfo_T *bi,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1414 u_entry_T *uep)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1415 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1416 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1417 size_t len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1418
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1419 undo_write_bytes(bi, (long_u)uep->ue_top, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1420 undo_write_bytes(bi, (long_u)uep->ue_bot, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1421 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1422 undo_write_bytes(bi, (long_u)uep->ue_size, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1423 for (i = 0; i < uep->ue_size; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1424 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1425 // Text is written without the text properties, since we cannot restore
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1426 // the text property types.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1427 len = STRLEN(uep->ue_array[i].ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1428 if (undo_write_bytes(bi, (long_u)len, 4) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1429 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1430 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i].ul_line, len) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1431 return FAIL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1432 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1433 return OK;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1434 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1435
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1436 static u_entry_T *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1437 unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1438 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1439 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1440 u_entry_T *uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1441 undoline_T *array = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1442 char_u *line;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1443 int line_len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1444
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1445 uep = U_ALLOC_LINE(sizeof(u_entry_T));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1446 if (uep == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1447 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1448 CLEAR_POINTER(uep);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1449 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1450 uep->ue_magic = UE_MAGIC;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1451 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1452 uep->ue_top = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1453 uep->ue_bot = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1454 uep->ue_lcount = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1455 uep->ue_size = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1456 if (uep->ue_size > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1457 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1458 if (uep->ue_size < LONG_MAX / (int)sizeof(char_u *))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1459 array = U_ALLOC_LINE(sizeof(undoline_T) * uep->ue_size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1460 if (array == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1461 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1462 *error = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1463 return uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1464 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1465 vim_memset(array, 0, sizeof(undoline_T) * uep->ue_size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1466 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1467 uep->ue_array = array;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1468
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1469 for (i = 0; i < uep->ue_size; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1470 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1471 line_len = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1472 if (line_len >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1473 line = read_string_decrypt(bi, line_len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1474 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1475 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1476 line = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1477 corruption_error("line length", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1478 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1479 if (line == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1480 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1481 *error = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1482 return uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1483 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1484 array[i].ul_line = line;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1485 array[i].ul_len = line_len + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1486 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1487 return uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1488 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1489
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1490 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1491 * Serialize "pos".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1492 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1493 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1494 serialize_pos(bufinfo_T *bi, pos_T pos)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1495 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1496 undo_write_bytes(bi, (long_u)pos.lnum, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1497 undo_write_bytes(bi, (long_u)pos.col, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1498 undo_write_bytes(bi, (long_u)pos.coladd, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1499 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1500
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1501 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1502 * Unserialize the pos_T at the current position.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1503 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1504 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1505 unserialize_pos(bufinfo_T *bi, pos_T *pos)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1506 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1507 pos->lnum = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1508 if (pos->lnum < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1509 pos->lnum = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1510 pos->col = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1511 if (pos->col < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1512 pos->col = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1513 pos->coladd = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1514 if (pos->coladd < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1515 pos->coladd = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1516 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1517
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1518 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1519 * Serialize "info".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1520 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1521 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1522 serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1523 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1524 serialize_pos(bi, info->vi_start);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1525 serialize_pos(bi, info->vi_end);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1526 undo_write_bytes(bi, (long_u)info->vi_mode, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1527 undo_write_bytes(bi, (long_u)info->vi_curswant, 4);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1528 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1529
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1530 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1531 * Unserialize the visualinfo_T at the current position.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1532 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1533 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1534 unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1535 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1536 unserialize_pos(bi, &info->vi_start);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1537 unserialize_pos(bi, &info->vi_end);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1538 info->vi_mode = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1539 info->vi_curswant = undo_read_4c(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1540 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1541
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1542 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1543 * Write the undo tree in an undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1544 * When "name" is not NULL, use it as the name of the undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1545 * Otherwise use buf->b_ffname to generate the undo file name.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1546 * "buf" must never be null, buf->b_ffname is used to obtain the original file
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1547 * permissions.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1548 * "forceit" is TRUE for ":wundo!", FALSE otherwise.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1549 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1550 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1551 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1552 u_write_undo(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1553 char_u *name,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1554 int forceit,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1555 buf_T *buf,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1556 char_u *hash)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1557 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1558 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1559 char_u *file_name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1560 int mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1561 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1562 int headers_written = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1563 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1564 int fd;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1565 FILE *fp = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1566 int perm;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1567 int write_ok = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1568 #ifdef UNIX
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1569 int st_old_valid = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1570 stat_T st_old;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1571 stat_T st_new;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1572 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1573 bufinfo_T bi;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1574
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1575 CLEAR_FIELD(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1576
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1577 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1578 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1579 file_name = u_get_undo_file_name(buf->b_ffname, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1580 if (file_name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1581 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1582 if (p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1583 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1584 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1585 smsg(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1586 _("Cannot write undo file in any directory in 'undodir'"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1587 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1588 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1589 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1590 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1591 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1592 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1593 file_name = name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1594
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1595 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1596 * Decide about the permission to use for the undo file. If the buffer
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1597 * has a name use the permission of the original file. Otherwise only
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1598 * allow the user to access the undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1599 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1600 perm = 0600;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1601 if (buf->b_ffname != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1602 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1603 #ifdef UNIX
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1604 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1605 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1606 perm = st_old.st_mode;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1607 st_old_valid = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1608 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1609 #else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1610 perm = mch_getperm(buf->b_ffname);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1611 if (perm < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1612 perm = 0600;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1613 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1614 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1615
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1616 // strip any s-bit and executable bit
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1617 perm = perm & 0666;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1618
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1619 // If the undo file already exists, verify that it actually is an undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1620 // file, and delete it.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1621 if (mch_getperm(file_name) >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1622 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1623 if (name == NULL || !forceit)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1624 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1625 // Check we can read it and it's an undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1626 fd = mch_open((char *)file_name, O_RDONLY|O_EXTRA, 0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1627 if (fd < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1628 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1629 if (name != NULL || p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1630 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1631 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1632 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1633 smsg(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1634 _("Will not overwrite with undo file, cannot read: %s"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1635 file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1636 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1637 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1638 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1639 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1640 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1641 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1642 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1643 char_u mbuf[UF_START_MAGIC_LEN];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1644 int len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1645
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1646 len = read_eintr(fd, mbuf, UF_START_MAGIC_LEN);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1647 close(fd);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1648 if (len < UF_START_MAGIC_LEN
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1649 || memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1650 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1651 if (name != NULL || p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1652 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1653 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1654 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1655 smsg(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1656 _("Will not overwrite, this is not an undo file: %s"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1657 file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1658 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1659 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1660 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1661 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1662 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1663 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1664 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1665 mch_remove(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1666 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1667
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1668 // If there is no undo information at all, quit here after deleting any
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1669 // existing undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1670 if (buf->b_u_numhead == 0 && buf->b_u_line_ptr.ul_line == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1671 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1672 if (p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1673 verb_msg(_("Skipping undo file write, nothing to undo"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1674 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1675 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1676
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1677 fd = mch_open((char *)file_name,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1678 O_CREAT|O_EXTRA|O_WRONLY|O_EXCL|O_NOFOLLOW, perm);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1679 if (fd < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1680 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1681 semsg(_(e_cannot_open_undo_file_for_writing_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1682 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1683 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1684 (void)mch_setperm(file_name, perm);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1685 if (p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1686 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1687 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1688 smsg(_("Writing undo file: %s"), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1689 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1690 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1691
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1692 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1693 // Check there is no problem in undo info before writing.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1694 u_check(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1695 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1696
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1697 #ifdef UNIX
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1698 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1699 * Try to set the group of the undo file same as the original file. If
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1700 * this fails, set the protection bits for the group same as the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1701 * protection bits for others.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1702 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1703 if (st_old_valid
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1704 && mch_stat((char *)file_name, &st_new) >= 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1705 && st_new.st_gid != st_old.st_gid
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1706 # ifdef HAVE_FCHOWN // sequent-ptx lacks fchown()
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1707 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1708 # endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1709 )
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1710 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1711 # if defined(HAVE_SELINUX) || defined(HAVE_SMACK)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1712 if (buf->b_ffname != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1713 mch_copy_sec(buf->b_ffname, file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1714 # endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1715 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1716
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1717 fp = fdopen(fd, "w");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1718 if (fp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1719 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1720 semsg(_(e_cannot_open_undo_file_for_writing_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1721 close(fd);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1722 mch_remove(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1723 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1724 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1725
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1726 // Undo must be synced.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1727 u_sync(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1728
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1729 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1730 * Write the header. Initializes encryption, if enabled.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1731 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1732 bi.bi_buf = buf;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1733 bi.bi_fp = fp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1734 if (serialize_header(&bi, hash) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1735 goto write_error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1736
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1737 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1738 * Iteratively serialize UHPs and their UEPs from the top down.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1739 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1740 mark = ++lastmark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1741 uhp = buf->b_u_oldhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1742 while (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1743 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1744 // Serialize current UHP if we haven't seen it
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1745 if (uhp->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1746 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1747 uhp->uh_walk = mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1748 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1749 ++headers_written;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1750 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1751 if (serialize_uhp(&bi, uhp) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1752 goto write_error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1753 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1754
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1755 // Now walk through the tree - algorithm from undo_time().
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1756 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1757 uhp = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1758 else if (uhp->uh_alt_next.ptr != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1759 && uhp->uh_alt_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1760 uhp = uhp->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1761 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1762 && uhp->uh_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1763 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1764 else if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1765 uhp = uhp->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1766 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1767 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1768 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1769
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1770 if (undo_write_bytes(&bi, (long_u)UF_HEADER_END_MAGIC, 2) == OK)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1771 write_ok = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1772 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1773 if (headers_written != buf->b_u_numhead)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1774 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1775 semsg("Written %ld headers, ...", headers_written);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1776 semsg("... but numhead is %ld", buf->b_u_numhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1777 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1778 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1779
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1780 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1781 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1782 write_ok = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1783 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1784
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1785 #if defined(UNIX) && defined(HAVE_FSYNC)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1786 if (p_fs && fflush(fp) == 0 && vim_fsync(fd) != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1787 write_ok = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1788 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1789
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1790 write_error:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1791 fclose(fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1792 if (!write_ok)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1793 semsg(_(e_write_error_in_undo_file_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1794
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1795 #if defined(MSWIN)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1796 // Copy file attributes; for systems where this can only be done after
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1797 // closing the file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1798 if (buf->b_ffname != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1799 (void)mch_copy_file_attribute(buf->b_ffname, file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1800 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1801 #ifdef HAVE_ACL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1802 if (buf->b_ffname != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1803 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1804 vim_acl_T acl;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1805
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1806 // For systems that support ACL: get the ACL from the original file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1807 acl = mch_get_acl(buf->b_ffname);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1808 mch_set_acl(file_name, acl);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1809 mch_free_acl(acl);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1810 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1811 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1812
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1813 theend:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1814 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1815 if (bi.bi_state != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1816 crypt_free_state(bi.bi_state);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1817 vim_free(bi.bi_buffer);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1818 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1819 if (file_name != name)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1820 vim_free(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1821 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1822
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1823 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1824 * Load the undo tree from an undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1825 * If "name" is not NULL use it as the undo file name. This also means being
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1826 * a bit more verbose.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1827 * Otherwise use curbuf->b_ffname to generate the undo file name.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1828 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1829 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1830 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1831 u_read_undo(char_u *name, char_u *hash, char_u *orig_name UNUSED)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1832 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1833 char_u *file_name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1834 FILE *fp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1835 long version, str_len;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1836 undoline_T line_ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1837 linenr_T line_lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1838 colnr_T line_colnr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1839 linenr_T line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1840 long num_head = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1841 long old_header_seq, new_header_seq, cur_header_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1842 long seq_last, seq_cur;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1843 long last_save_nr = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1844 short old_idx = -1, new_idx = -1, cur_idx = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1845 long num_read_uhps = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1846 time_t seq_time;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1847 int i, j;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1848 int c;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1849 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1850 u_header_T **uhp_table = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1851 char_u read_hash[UNDO_HASH_SIZE];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1852 char_u magic_buf[UF_START_MAGIC_LEN];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1853 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1854 int *uhp_table_used;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1855 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1856 #ifdef UNIX
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1857 stat_T st_orig;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1858 stat_T st_undo;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1859 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1860 bufinfo_T bi;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1861
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1862 CLEAR_FIELD(bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1863 line_ptr.ul_len = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1864 line_ptr.ul_line = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1865
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1866 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1867 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1868 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1869 if (file_name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1870 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1871
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1872 #ifdef UNIX
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1873 // For safety we only read an undo file if the owner is equal to the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1874 // owner of the text file or equal to the current user.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1875 if (mch_stat((char *)orig_name, &st_orig) >= 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1876 && mch_stat((char *)file_name, &st_undo) >= 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1877 && st_orig.st_uid != st_undo.st_uid
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1878 && st_undo.st_uid != getuid())
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1879 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1880 if (p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1881 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1882 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1883 smsg(_("Not reading undo file, owner differs: %s"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1884 file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1885 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1886 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1887 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1888 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1889 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1890 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1891 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1892 file_name = name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1893
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1894 if (p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1895 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1896 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1897 smsg(_("Reading undo file: %s"), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1898 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1899 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1900
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1901 fp = mch_fopen((char *)file_name, "r");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1902 if (fp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1903 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1904 if (name != NULL || p_verbose > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1905 semsg(_(e_cannot_open_undo_file_for_reading_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1906 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1907 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1908 bi.bi_buf = curbuf;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1909 bi.bi_fp = fp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1910
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1911 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1912 * Read the undo file header.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1913 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1914 if (fread(magic_buf, UF_START_MAGIC_LEN, 1, fp) != 1
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1915 || memcmp(magic_buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1916 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1917 semsg(_(e_not_an_undo_file_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1918 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1919 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1920 version = get2c(fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1921 if (version == UF_VERSION_CRYPT)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1922 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1923 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1924 if (*curbuf->b_p_key == NUL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1925 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1926 semsg(_(e_non_encrypted_file_has_encrypted_undo_file_str),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1927 file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1928 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1929 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1930 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1931 if (bi.bi_state == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1932 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1933 semsg(_(e_undo_file_decryption_failed), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1934 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1935 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1936 if (crypt_whole_undofile(bi.bi_state->method_nr))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1937 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1938 bi.bi_buffer = alloc(CRYPT_BUF_SIZE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1939 if (bi.bi_buffer == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1940 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1941 crypt_free_state(bi.bi_state);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1942 bi.bi_state = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1943 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1944 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1945 bi.bi_avail = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1946 bi.bi_used = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1947 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1948 #else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1949 semsg(_(e_undo_file_is_encrypted_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1950 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1951 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1952 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1953 else if (version != UF_VERSION)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1954 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1955 semsg(_(e_incompatible_undo_file_str), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1956 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1957 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1958
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1959 if (undo_read(&bi, read_hash, (size_t)UNDO_HASH_SIZE) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1960 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1961 corruption_error("hash", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1962 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1963 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1964 line_count = (linenr_T)undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1965 if (memcmp(hash, read_hash, UNDO_HASH_SIZE) != 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1966 || line_count != curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1967 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1968 if (p_verbose > 0 || name != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1969 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1970 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1971 verbose_enter();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1972 give_warning((char_u *)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1973 _("File contents changed, cannot use undo info"), TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1974 if (name == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1975 verbose_leave();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1976 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1977 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1978 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1979
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1980 // Read undo data for "U" command.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1981 str_len = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1982 if (str_len < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1983 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1984 if (str_len > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1985 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1986 line_ptr.ul_line = read_string_decrypt(&bi, str_len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1987 line_ptr.ul_len = str_len + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1988 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1989 line_lnum = (linenr_T)undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1990 line_colnr = (colnr_T)undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1991 if (line_lnum < 0 || line_colnr < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1992 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1993 corruption_error("line lnum/col", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1994 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1995 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1996
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1997 // Begin general undo data
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1998 old_header_seq = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
1999 new_header_seq = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2000 cur_header_seq = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2001 num_head = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2002 seq_last = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2003 seq_cur = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2004 seq_time = undo_read_time(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2005
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2006 // Optional header fields.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2007 for (;;)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2008 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2009 int len = undo_read_byte(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2010 int what;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2011
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2012 if (len == 0 || len == EOF)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2013 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2014 what = undo_read_byte(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2015 switch (what)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2016 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2017 case UF_LAST_SAVE_NR:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2018 last_save_nr = undo_read_4c(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2019 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2020 default:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2021 // field not supported, skip
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2022 while (--len >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2023 (void)undo_read_byte(&bi);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2024 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2025 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2026
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2027 // uhp_table will store the freshly created undo headers we allocate
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2028 // until we insert them into curbuf. The table remains sorted by the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2029 // sequence numbers of the headers.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2030 // When there are no headers uhp_table is NULL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2031 if (num_head > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2032 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2033 if (num_head < LONG_MAX / (long)sizeof(u_header_T *))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2034 uhp_table = U_ALLOC_LINE(num_head * sizeof(u_header_T *));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2035 if (uhp_table == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2036 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2037 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2038
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2039 while ((c = undo_read_2c(&bi)) == UF_HEADER_MAGIC)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2040 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2041 if (num_read_uhps >= num_head)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2042 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2043 corruption_error("num_head too small", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2044 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2045 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2046
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2047 uhp = unserialize_uhp(&bi, file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2048 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2049 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2050 uhp_table[num_read_uhps++] = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2051 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2052
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2053 if (num_read_uhps != num_head)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2054 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2055 corruption_error("num_head", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2056 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2057 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2058 if (c != UF_HEADER_END_MAGIC)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2059 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2060 corruption_error("end marker", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2061 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2062 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2063
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2064 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2065 uhp_table_used = alloc_clear(sizeof(int) * num_head + 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2066 # define SET_FLAG(j) ++uhp_table_used[j]
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2067 #else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2068 # define SET_FLAG(j)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2069 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2070
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2071 // We have put all of the headers into a table. Now we iterate through the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2072 // table and swizzle each sequence number we have stored in uh_*_seq into
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2073 // a pointer corresponding to the header with that sequence number.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2074 for (i = 0; i < num_head; i++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2075 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2076 uhp = uhp_table[i];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2077 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2078 continue;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2079 for (j = 0; j < num_head; j++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2080 if (uhp_table[j] != NULL && i != j
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2081 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2082 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2083 corruption_error("duplicate uh_seq", file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2084 goto error;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2085 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2086 for (j = 0; j < num_head; j++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2087 if (uhp_table[j] != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2088 && uhp_table[j]->uh_seq == uhp->uh_next.seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2089 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2090 uhp->uh_next.ptr = uhp_table[j];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2091 SET_FLAG(j);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2092 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2093 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2094 for (j = 0; j < num_head; j++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2095 if (uhp_table[j] != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2096 && uhp_table[j]->uh_seq == uhp->uh_prev.seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2097 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2098 uhp->uh_prev.ptr = uhp_table[j];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2099 SET_FLAG(j);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2100 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2101 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2102 for (j = 0; j < num_head; j++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2103 if (uhp_table[j] != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2104 && uhp_table[j]->uh_seq == uhp->uh_alt_next.seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2105 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2106 uhp->uh_alt_next.ptr = uhp_table[j];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2107 SET_FLAG(j);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2108 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2109 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2110 for (j = 0; j < num_head; j++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2111 if (uhp_table[j] != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2112 && uhp_table[j]->uh_seq == uhp->uh_alt_prev.seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2113 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2114 uhp->uh_alt_prev.ptr = uhp_table[j];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2115 SET_FLAG(j);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2116 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2117 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2118 if (old_header_seq > 0 && old_idx < 0 && uhp->uh_seq == old_header_seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2119 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2120 old_idx = i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2121 SET_FLAG(i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2122 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2123 if (new_header_seq > 0 && new_idx < 0 && uhp->uh_seq == new_header_seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2124 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2125 new_idx = i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2126 SET_FLAG(i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2127 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2128 if (cur_header_seq > 0 && cur_idx < 0 && uhp->uh_seq == cur_header_seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2129 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2130 cur_idx = i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2131 SET_FLAG(i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2132 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2133 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2134
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2135 // Now that we have read the undo info successfully, free the current undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2136 // info and use the info from the file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2137 u_blockfree(curbuf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2138 curbuf->b_u_oldhead = old_idx < 0 ? NULL : uhp_table[old_idx];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2139 curbuf->b_u_newhead = new_idx < 0 ? NULL : uhp_table[new_idx];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2140 curbuf->b_u_curhead = cur_idx < 0 ? NULL : uhp_table[cur_idx];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2141 curbuf->b_u_line_ptr = line_ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2142 curbuf->b_u_line_lnum = line_lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2143 curbuf->b_u_line_colnr = line_colnr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2144 curbuf->b_u_numhead = num_head;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2145 curbuf->b_u_seq_last = seq_last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2146 curbuf->b_u_seq_cur = seq_cur;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2147 curbuf->b_u_time_cur = seq_time;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2148 curbuf->b_u_save_nr_last = last_save_nr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2149 curbuf->b_u_save_nr_cur = last_save_nr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2150
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2151 curbuf->b_u_synced = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2152 vim_free(uhp_table);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2153
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2154 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2155 for (i = 0; i < num_head; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2156 if (uhp_table_used[i] == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2157 semsg("uhp_table entry %ld not used, leaking memory", i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2158 vim_free(uhp_table_used);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2159 u_check(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2160 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2161
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2162 if (name != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2163 smsg(_("Finished reading undo file %s"), file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2164 goto theend;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2165
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2166 error:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2167 vim_free(line_ptr.ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2168 if (uhp_table != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2169 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2170 for (i = 0; i < num_read_uhps; i++)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2171 if (uhp_table[i] != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2172 u_free_uhp(uhp_table[i]);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2173 vim_free(uhp_table);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2174 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2175
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2176 theend:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2177 #ifdef FEAT_CRYPT
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2178 if (bi.bi_state != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2179 crypt_free_state(bi.bi_state);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2180 vim_free(bi.bi_buffer);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2181 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2182 if (fp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2183 fclose(fp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2184 if (file_name != name)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2185 vim_free(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2186 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2187 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2188
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2189 #endif // FEAT_PERSISTENT_UNDO
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2190
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2191
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2192 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2193 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2194 * If 'cpoptions' does not contain 'u': Always undo.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2195 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2196 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2197 u_undo(int count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2198 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2199 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2200 * If we get an undo command while executing a macro, we behave like the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2201 * original vi. If this happens twice in one macro the result will not
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2202 * be compatible.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2203 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2204 if (curbuf->b_u_synced == FALSE)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2205 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2206 u_sync(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2207 count = 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2208 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2209
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2210 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2211 undo_undoes = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2212 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2213 undo_undoes = !undo_undoes;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2214 u_doit(count);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2215 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2216
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2217 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2218 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2219 * If 'cpoptions' does not contain 'u': Always redo.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2220 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2221 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2222 u_redo(int count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2223 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2224 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2225 undo_undoes = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2226 u_doit(count);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2227 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2228
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2229 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2230 * Undo or redo, depending on 'undo_undoes', 'count' times.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2231 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2232 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2233 u_doit(int startcount)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2234 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2235 int count = startcount;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2236
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2237 if (!undo_allowed())
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2238 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2239
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2240 u_newcount = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2241 u_oldcount = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2242 if (curbuf->b_ml.ml_flags & ML_EMPTY)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2243 u_oldcount = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2244 while (count--)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2245 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2246 // Do the change warning now, so that it triggers FileChangedRO when
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2247 // needed. This may cause the file to be reloaded, that must happen
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2248 // before we do anything, because it may change curbuf->b_u_curhead
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2249 // and more.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2250 change_warning(0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2251
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2252 if (undo_undoes)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2253 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2254 if (curbuf->b_u_curhead == NULL) // first undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2255 curbuf->b_u_curhead = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2256 else if (get_undolevel() > 0) // multi level undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2257 // get next undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2258 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2259 // nothing to undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2260 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2261 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2262 // stick curbuf->b_u_curhead at end
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2263 curbuf->b_u_curhead = curbuf->b_u_oldhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2264 beep_flush();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2265 if (count == startcount - 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2266 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2267 msg(_("Already at oldest change"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2268 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2269 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2270 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2271 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2272
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2273 u_undoredo(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2274 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2275 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2276 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2277 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2278 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2279 beep_flush(); // nothing to redo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2280 if (count == startcount - 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2281 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2282 msg(_("Already at newest change"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2283 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2284 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2285 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2286 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2287
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2288 u_undoredo(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2289
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2290 // Advance for next redo. Set "newhead" when at the end of the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2291 // redoable changes.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2292 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2293 curbuf->b_u_newhead = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2294 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2295 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2296 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2297 u_undo_end(undo_undoes, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2298 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2299
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2300 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2301 * Undo or redo over the timeline.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2302 * When "step" is negative go back in time, otherwise goes forward in time.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2303 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2304 * seconds.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2305 * When "file" is TRUE use "step" as a number of file writes.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2306 * When "absolute" is TRUE use "step" as the sequence number to jump to.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2307 * "sec" must be FALSE then.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2308 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2309 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2310 undo_time(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2311 long step,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2312 int sec,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2313 int file,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2314 int absolute)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2315 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2316 long target;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2317 long closest;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2318 long closest_start;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2319 long closest_seq = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2320 long val;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2321 u_header_T *uhp = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2322 u_header_T *last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2323 int mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2324 int nomark = 0; // shut up compiler
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2325 int round;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2326 int dosec = sec;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2327 int dofile = file;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2328 int above = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2329 int did_undo = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2330
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2331 if (text_locked())
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2332 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2333 text_locked_msg();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2334 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2335 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2336
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2337 // First make sure the current undoable change is synced.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2338 if (curbuf->b_u_synced == FALSE)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2339 u_sync(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2340
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2341 u_newcount = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2342 u_oldcount = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2343 if (curbuf->b_ml.ml_flags & ML_EMPTY)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2344 u_oldcount = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2345
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2346 // "target" is the node below which we want to be.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2347 // Init "closest" to a value we can't reach.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2348 if (absolute)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2349 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2350 target = step;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2351 closest = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2352 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2353 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2354 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2355 if (dosec)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2356 target = (long)(curbuf->b_u_time_cur) + step;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2357 else if (dofile)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2358 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2359 if (step < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2360 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2361 // Going back to a previous write. If there were changes after
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2362 // the last write, count that as moving one file-write, so
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2363 // that ":earlier 1f" undoes all changes since the last save.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2364 uhp = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2365 if (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2366 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2367 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2368 uhp = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2369 if (uhp != NULL && uhp->uh_save_nr != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2370 // "uh_save_nr" was set in the last block, that means
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2371 // there were no changes since the last write
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2372 target = curbuf->b_u_save_nr_cur + step;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2373 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2374 // count the changes since the last write as one step
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2375 target = curbuf->b_u_save_nr_cur + step + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2376 if (target <= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2377 // Go to before first write: before the oldest change. Use
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2378 // the sequence number for that.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2379 dofile = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2380 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2381 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2382 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2383 // Moving forward to a newer write.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2384 target = curbuf->b_u_save_nr_cur + step;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2385 if (target > curbuf->b_u_save_nr_last)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2386 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2387 // Go to after last write: after the latest change. Use
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2388 // the sequence number for that.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2389 target = curbuf->b_u_seq_last + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2390 dofile = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2391 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2392 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2393 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2394 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2395 target = curbuf->b_u_seq_cur + step;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2396 if (step < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2397 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2398 if (target < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2399 target = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2400 closest = -1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2401 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2402 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2403 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2404 if (dosec)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2405 closest = (long)(vim_time() + 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2406 else if (dofile)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2407 closest = curbuf->b_u_save_nr_last + 2;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2408 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2409 closest = curbuf->b_u_seq_last + 2;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2410 if (target >= closest)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2411 target = closest - 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2412 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2413 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2414 closest_start = closest;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2415 closest_seq = curbuf->b_u_seq_cur;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2416
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2417 // When "target" is 0; Back to origin.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2418 if (target == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2419 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2420 mark = lastmark; // avoid that GCC complains
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2421 goto target_zero;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2422 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2423
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2424 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2425 * May do this twice:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2426 * 1. Search for "target", update "closest" to the best match found.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2427 * 2. If "target" not found search for "closest".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2428 *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2429 * When using the closest time we use the sequence number in the second
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2430 * round, because there may be several entries with the same time.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2431 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2432 for (round = 1; round <= 2; ++round)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2433 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2434 // Find the path from the current state to where we want to go. The
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2435 // desired state can be anywhere in the undo tree, need to go all over
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2436 // it. We put "nomark" in uh_walk where we have been without success,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2437 // "mark" where it could possibly be.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2438 mark = ++lastmark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2439 nomark = ++lastmark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2440
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2441 if (curbuf->b_u_curhead == NULL) // at leaf of the tree
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2442 uhp = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2443 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2444 uhp = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2445
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2446 while (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2447 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2448 uhp->uh_walk = mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2449 if (dosec)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2450 val = (long)(uhp->uh_time);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2451 else if (dofile)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2452 val = uhp->uh_save_nr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2453 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2454 val = uhp->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2455
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2456 if (round == 1 && !(dofile && val == 0))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2457 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2458 // Remember the header that is closest to the target.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2459 // It must be at least in the right direction (checked with
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2460 // "b_u_seq_cur"). When the timestamp is equal find the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2461 // highest/lowest sequence number.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2462 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2463 : uhp->uh_seq > curbuf->b_u_seq_cur)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2464 && ((dosec && val == closest)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2465 ? (step < 0
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2466 ? uhp->uh_seq < closest_seq
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2467 : uhp->uh_seq > closest_seq)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2468 : closest == closest_start
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2469 || (val > target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2470 ? (closest > target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2471 ? val - target <= closest - target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2472 : val - target <= target - closest)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2473 : (closest > target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2474 ? target - val <= closest - target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2475 : target - val <= target - closest))))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2476 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2477 closest = val;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2478 closest_seq = uhp->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2479 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2480 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2481
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2482 // Quit searching when we found a match. But when searching for a
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2483 // time we need to continue looking for the best uh_seq.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2484 if (target == val && !dosec)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2485 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2486 target = uhp->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2487 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2488 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2489
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2490 // go down in the tree if we haven't been there
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2491 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2492 && uhp->uh_prev.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2493 uhp = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2494
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2495 // go to alternate branch if we haven't been there
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2496 else if (uhp->uh_alt_next.ptr != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2497 && uhp->uh_alt_next.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2498 && uhp->uh_alt_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2499 uhp = uhp->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2500
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2501 // go up in the tree if we haven't been there and we are at the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2502 // start of alternate branches
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2503 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2504 && uhp->uh_next.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2505 && uhp->uh_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2506 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2507 // If still at the start we don't go through this change.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2508 if (uhp == curbuf->b_u_curhead)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2509 uhp->uh_walk = nomark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2510 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2511 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2512
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2513 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2514 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2515 // need to backtrack; mark this node as useless
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2516 uhp->uh_walk = nomark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2517 if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2518 uhp = uhp->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2519 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2520 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2521 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2522 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2523
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2524 if (uhp != NULL) // found it
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2525 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2526
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2527 if (absolute)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2528 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2529 semsg(_(e_undo_number_nr_not_found), step);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2530 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2531 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2532
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2533 if (closest == closest_start)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2534 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2535 if (step < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2536 msg(_("Already at oldest change"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2537 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2538 msg(_("Already at newest change"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2539 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2540 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2541
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2542 target = closest_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2543 dosec = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2544 dofile = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2545 if (step < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2546 above = TRUE; // stop above the header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2547 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2548
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2549 target_zero:
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2550 // If we found it: Follow the path to go to where we want to be.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2551 if (uhp != NULL || target == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2552 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2553 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2554 * First go up the tree as much as needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2555 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2556 while (!got_int)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2557 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2558 // Do the change warning now, for the same reason as above.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2559 change_warning(0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2560
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2561 uhp = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2562 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2563 uhp = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2564 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2565 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2566 if (uhp == NULL || (target > 0 && uhp->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2567 || (uhp->uh_seq == target && !above))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2568 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2569 curbuf->b_u_curhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2570 u_undoredo(TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2571 if (target > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2572 uhp->uh_walk = nomark; // don't go back down here
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2573 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2574
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2575 // When back to origin, redo is not needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2576 if (target > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2577 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2578 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2579 * And now go down the tree (redo), branching off where needed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2580 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2581 while (!got_int)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2582 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2583 // Do the change warning now, for the same reason as above.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2584 change_warning(0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2585
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2586 uhp = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2587 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2588 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2589
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2590 // Go back to the first branch with a mark.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2591 while (uhp->uh_alt_prev.ptr != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2592 && uhp->uh_alt_prev.ptr->uh_walk == mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2593 uhp = uhp->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2594
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2595 // Find the last branch with a mark, that's the one.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2596 last = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2597 while (last->uh_alt_next.ptr != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2598 && last->uh_alt_next.ptr->uh_walk == mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2599 last = last->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2600 if (last != uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2601 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2602 // Make the used branch the first entry in the list of
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2603 // alternatives to make "u" and CTRL-R take this branch.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2604 while (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2605 uhp = uhp->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2606 if (last->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2607 last->uh_alt_next.ptr->uh_alt_prev.ptr =
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2608 last->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2609 last->uh_alt_prev.ptr->uh_alt_next.ptr =
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2610 last->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2611 last->uh_alt_prev.ptr = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2612 last->uh_alt_next.ptr = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2613 uhp->uh_alt_prev.ptr = last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2614
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2615 if (curbuf->b_u_oldhead == uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2616 curbuf->b_u_oldhead = last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2617 uhp = last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2618 if (uhp->uh_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2619 uhp->uh_next.ptr->uh_prev.ptr = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2620 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2621 curbuf->b_u_curhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2622
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2623 if (uhp->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2624 break; // must have reached the target
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2625
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2626 // Stop when going backwards in time and didn't find the exact
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2627 // header we were looking for.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2628 if (uhp->uh_seq == target && above)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2629 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2630 curbuf->b_u_seq_cur = target - 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2631 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2632 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2633
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2634 u_undoredo(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2635
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2636 // Advance "curhead" to below the header we last used. If it
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2637 // becomes NULL then we need to set "newhead" to this leaf.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2638 if (uhp->uh_prev.ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2639 curbuf->b_u_newhead = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2640 curbuf->b_u_curhead = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2641 did_undo = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2642
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2643 if (uhp->uh_seq == target) // found it!
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2644 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2645
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2646 uhp = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2647 if (uhp == NULL || uhp->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2648 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2649 // Need to redo more but can't find it...
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2650 internal_error("undo_time()");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2651 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2652 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2653 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2654 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2655 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2656 u_undo_end(did_undo, absolute);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2657 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2658
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2659 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2660 * u_undoredo: common code for undo and redo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2661 *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2662 * The lines in the file are replaced by the lines in the entry list at
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2663 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2664 * list for the next undo/redo.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2665 *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2666 * When "undo" is TRUE we go up in the tree, when FALSE we go down.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2667 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2668 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2669 u_undoredo(int undo)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2670 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2671 undoline_T *newarray = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2672 linenr_T oldsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2673 linenr_T newsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2674 linenr_T top, bot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2675 linenr_T lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2676 linenr_T newlnum = MAXLNUM;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2677 pos_T new_curpos = curwin->w_cursor;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2678 long i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2679 u_entry_T *uep, *nuep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2680 u_entry_T *newlist = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2681 int old_flags;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2682 int new_flags;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2683 pos_T namedm[NMARKS];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2684 visualinfo_T visualinfo;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2685 int empty_buffer; // buffer became empty
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2686 u_header_T *curhead = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2687
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2688 // Don't want autocommands using the undo structures here, they are
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2689 // invalid till the end.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2690 block_autocmds();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2691
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2692 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2693 u_check(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2694 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2695 old_flags = curhead->uh_flags;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2696 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2697 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2698 setpcmark();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2699
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2700 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2701 * save marks before undo/redo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2702 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2703 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2704 visualinfo = curbuf->b_visual;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2705 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2706 curbuf->b_op_start.col = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2707 curbuf->b_op_end.lnum = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2708 curbuf->b_op_end.col = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2709
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2710 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2711 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2712 top = uep->ue_top;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2713 bot = uep->ue_bot;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2714 if (bot == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2715 bot = curbuf->b_ml.ml_line_count + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2716 if (top > curbuf->b_ml.ml_line_count || top >= bot
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2717 || bot > curbuf->b_ml.ml_line_count + 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2718 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2719 unblock_autocmds();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2720 iemsg(e_u_undo_line_numbers_wrong);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2721 changed(); // don't want UNCHANGED now
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2722 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2723 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2724
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2725 oldsize = bot - top - 1; // number of lines before undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2726 newsize = uep->ue_size; // number of lines after undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2727
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2728 // Decide about the cursor position, depending on what text changed.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2729 // Don't set it yet, it may be invalid if lines are going to be added.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2730 if (top < newlnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2731 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2732 // If the saved cursor is somewhere in this undo block, move it to
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2733 // the remembered position. Makes "gwap" put the cursor back
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2734 // where it was.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2735 lnum = curhead->uh_cursor.lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2736 if (lnum >= top && lnum <= top + newsize + 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2737 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2738 new_curpos = curhead->uh_cursor;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2739 newlnum = new_curpos.lnum - 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2740 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2741 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2742 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2743 // Use the first line that actually changed. Avoids that
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2744 // undoing auto-formatting puts the cursor in the previous
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2745 // line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2746 for (i = 0; i < newsize && i < oldsize; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2747 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2748 char_u *p = ml_get(top + 1 + i);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2749
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2750 if (curbuf->b_ml.ml_line_len != uep->ue_array[i].ul_len
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2751 || memcmp(uep->ue_array[i].ul_line, p,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2752 curbuf->b_ml.ml_line_len) != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2753 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2754 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2755 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2756 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2757 newlnum = top;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2758 new_curpos.lnum = newlnum + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2759 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2760 else if (i < newsize)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2761 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2762 newlnum = top + i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2763 new_curpos.lnum = newlnum + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2764 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2765 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2766 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2767
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2768 empty_buffer = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2769
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2770 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2771 * Delete the lines between top and bot and save them in newarray.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2772 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2773 if (oldsize > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2774 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2775 if ((newarray = U_ALLOC_LINE(sizeof(undoline_T) * oldsize)) == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2776 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2777 do_outofmem_msg((long_u)(sizeof(undoline_T) * oldsize));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2778
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2779 // We have messed up the entry list, repair is impossible.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2780 // we have to free the rest of the list.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2781 while (uep != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2782 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2783 nuep = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2784 u_freeentry(uep, uep->ue_size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2785 uep = nuep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2786 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2787 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2788 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2789 // delete backwards, it goes faster in most cases
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2790 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2791 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2792 // what can we do when we run out of memory?
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2793 if (u_save_line(&newarray[i], lnum) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2794 do_outofmem_msg((long_u)0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2795 // remember we deleted the last line in the buffer, and a
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2796 // dummy empty line will be inserted
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2797 if (curbuf->b_ml.ml_line_count == 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2798 empty_buffer = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2799 ml_delete_flags(lnum, ML_DEL_UNDO);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2800 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2801 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2802 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2803 newarray = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2804
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2805 // make sure the cursor is on a valid line after the deletions
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2806 check_cursor_lnum();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2807
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2808 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2809 * Insert the lines in u_array between top and bot.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2810 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2811 if (newsize)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2812 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2813 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2814 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2815 // If the file is empty, there is an empty line 1 that we
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2816 // should get rid of, by replacing it with the new line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2817 if (empty_buffer && lnum == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2818 ml_replace_len((linenr_T)1, uep->ue_array[i].ul_line,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2819 uep->ue_array[i].ul_len, TRUE, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2820 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2821 ml_append_flags(lnum, uep->ue_array[i].ul_line,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2822 (colnr_T)uep->ue_array[i].ul_len, ML_APPEND_UNDO);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2823 vim_free(uep->ue_array[i].ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2824 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2825 vim_free((char_u *)uep->ue_array);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2826 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2827
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2828 // adjust marks
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2829 if (oldsize != newsize)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2830 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2831 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2832 (long)newsize - (long)oldsize);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2833 if (curbuf->b_op_start.lnum > top + oldsize)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2834 curbuf->b_op_start.lnum += newsize - oldsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2835 if (curbuf->b_op_end.lnum > top + oldsize)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2836 curbuf->b_op_end.lnum += newsize - oldsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2837 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2838 if (oldsize > 0 || newsize > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2839 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2840 changed_lines(top + 1, 0, bot, newsize - oldsize);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2841 #ifdef FEAT_SPELL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2842 // When text has been changed, possibly the start of the next line
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2843 // may have SpellCap that should be removed or it needs to be
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2844 // displayed. Schedule the next line for redrawing just in case.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2845 if (spell_check_window(curwin) && bot <= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2846 redrawWinline(curwin, bot);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2847 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2848 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2849
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2850 // Set the '[ mark.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2851 if (top + 1 < curbuf->b_op_start.lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2852 curbuf->b_op_start.lnum = top + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2853 // Set the '] mark.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2854 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2855 curbuf->b_op_end.lnum = top + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2856 else if (top + newsize > curbuf->b_op_end.lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2857 curbuf->b_op_end.lnum = top + newsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2858
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2859 u_newcount += newsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2860 u_oldcount += oldsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2861 uep->ue_size = oldsize;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2862 uep->ue_array = newarray;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2863 uep->ue_bot = top + newsize + 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2864
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2865 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2866 * insert this entry in front of the new entry list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2867 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2868 nuep = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2869 uep->ue_next = newlist;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2870 newlist = uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2871 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2872
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2873 // Ensure the '[ and '] marks are within bounds.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2874 if (curbuf->b_op_start.lnum > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2875 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2876 if (curbuf->b_op_end.lnum > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2877 curbuf->b_op_end.lnum = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2878
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2879 // Set the cursor to the desired position. Check that the line is valid.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2880 curwin->w_cursor = new_curpos;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2881 check_cursor_lnum();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2882
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2883 curhead->uh_entry = newlist;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2884 curhead->uh_flags = new_flags;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2885 if ((old_flags & UH_EMPTYBUF) && BUFEMPTY())
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2886 curbuf->b_ml.ml_flags |= ML_EMPTY;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2887 if (old_flags & UH_CHANGED)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2888 changed();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2889 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2890 #ifdef FEAT_NETBEANS_INTG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2891 // per netbeans undo rules, keep it as modified
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2892 if (!isNetbeansModified(curbuf))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2893 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2894 unchanged(curbuf, FALSE, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2895
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2896 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2897 * restore marks from before undo/redo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2898 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2899 for (i = 0; i < NMARKS; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2900 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2901 if (curhead->uh_namedm[i].lnum != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2902 curbuf->b_namedm[i] = curhead->uh_namedm[i];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2903 if (namedm[i].lnum != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2904 curhead->uh_namedm[i] = namedm[i];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2905 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2906 curhead->uh_namedm[i].lnum = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2907 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2908 if (curhead->uh_visual.vi_start.lnum != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2909 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2910 curbuf->b_visual = curhead->uh_visual;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2911 curhead->uh_visual = visualinfo;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2912 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2913
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2914 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2915 * If the cursor is only off by one line, put it at the same position as
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2916 * before starting the change (for the "o" command).
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2917 * Otherwise the cursor should go to the first undone line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2918 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2919 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2920 && curwin->w_cursor.lnum > 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2921 --curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2922 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2923 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2924 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2925 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2926 curwin->w_cursor.col = curhead->uh_cursor.col;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2927 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2928 coladvance((colnr_T)curhead->uh_cursor_vcol);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2929 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2930 curwin->w_cursor.coladd = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2931 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2932 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2933 beginline(BL_SOL | BL_FIX);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2934 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2935 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2936 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2937 // We get here with the current cursor line being past the end (eg
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2938 // after adding lines at the end of the file, and then undoing it).
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2939 // check_cursor() will move the cursor to the last line. Move it to
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2940 // the first column here.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2941 curwin->w_cursor.col = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2942 curwin->w_cursor.coladd = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2943 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2944
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2945 // Make sure the cursor is on an existing line and column.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2946 check_cursor();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2947
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2948 // Remember where we are for "g-" and ":earlier 10s".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2949 curbuf->b_u_seq_cur = curhead->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2950 if (undo)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2951 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2952 // We are below the previous undo. However, to make ":earlier 1s"
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2953 // work we compute this as being just above the just undone change.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2954 if (curhead->uh_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2955 curbuf->b_u_seq_cur = curhead->uh_next.ptr->uh_seq;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2956 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2957 curbuf->b_u_seq_cur = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2958 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2959
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2960 // Remember where we are for ":earlier 1f" and ":later 1f".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2961 if (curhead->uh_save_nr != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2962 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2963 if (undo)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2964 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2965 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2966 curbuf->b_u_save_nr_cur = curhead->uh_save_nr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2967 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2968
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2969 // The timestamp can be the same for multiple changes, just use the one of
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2970 // the undone/redone change.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2971 curbuf->b_u_time_cur = curhead->uh_time;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2972
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2973 unblock_autocmds();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2974 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2975 u_check(FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2976 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2977 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2978
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2979 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2980 * If we deleted or added lines, report the number of less/more lines.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2981 * Otherwise, report the number of changes (this may be incorrect
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2982 * in some cases, but it's better than nothing).
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2983 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2984 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2985 u_undo_end(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2986 int did_undo, // just did an undo
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2987 int absolute) // used ":undo N"
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2988 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2989 char *msgstr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2990 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2991 char_u msgbuf[80];
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2992
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2993 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2994 if ((fdo_flags & FDO_UNDO) && KeyTyped)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2995 foldOpenCursor();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2996 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2997
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2998 if (global_busy // no messages now, wait until global is finished
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
2999 || !messaging()) // 'lazyredraw' set, don't do messages now
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3000 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3001
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3002 if (curbuf->b_ml.ml_flags & ML_EMPTY)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3003 --u_newcount;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3004
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3005 u_oldcount -= u_newcount;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3006 if (u_oldcount == -1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3007 msgstr = N_("more line");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3008 else if (u_oldcount < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3009 msgstr = N_("more lines");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3010 else if (u_oldcount == 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3011 msgstr = N_("line less");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3012 else if (u_oldcount > 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3013 msgstr = N_("fewer lines");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3014 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3015 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3016 u_oldcount = u_newcount;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3017 if (u_newcount == 1)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3018 msgstr = N_("change");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3019 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3020 msgstr = N_("changes");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3021 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3022
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3023 if (curbuf->b_u_curhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3024 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3025 // For ":undo N" we prefer a "after #N" message.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3026 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3027 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3028 uhp = curbuf->b_u_curhead->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3029 did_undo = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3030 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3031 else if (did_undo)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3032 uhp = curbuf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3033 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3034 uhp = curbuf->b_u_curhead->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3035 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3036 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3037 uhp = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3038
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3039 if (uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3040 *msgbuf = NUL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3041 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3042 add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3043
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3044 #ifdef FEAT_CONCEAL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3045 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3046 win_T *wp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3047
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3048 FOR_ALL_WINDOWS(wp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3049 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3050 if (wp->w_buffer == curbuf && wp->w_p_cole > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3051 redraw_win_later(wp, UPD_NOT_VALID);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3052 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3053 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3054 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3055 if (VIsual_active)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3056 check_pos(curbuf, &VIsual);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3057
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3058 smsg_attr_keep(0, _("%ld %s; %s #%ld %s"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3059 u_oldcount < 0 ? -u_oldcount : u_oldcount,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3060 _(msgstr),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3061 did_undo ? _("before") : _("after"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3062 uhp == NULL ? 0L : uhp->uh_seq,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3063 msgbuf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3064 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3065
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3066 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3067 * u_sync: stop adding to the current entry list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3068 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3069 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3070 u_sync(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3071 int force) // Also sync when no_u_sync is set.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3072 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3073 // Skip it when already synced or syncing is disabled.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3074 if (curbuf->b_u_synced || (!force && no_u_sync > 0))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3075 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3076 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3077 if (p_imst == IM_ON_THE_SPOT && im_is_preediting())
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3078 return; // XIM is busy, don't break an undo sequence
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3079 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3080 if (get_undolevel() < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3081 curbuf->b_u_synced = TRUE; // no entries, nothing to do
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3082 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3083 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3084 u_getbot(); // compute ue_bot of previous u_save
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3085 curbuf->b_u_curhead = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3086 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3087 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3088
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3089 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3090 * ":undolist": List the leafs of the undo tree
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3091 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3092 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3093 ex_undolist(exarg_T *eap UNUSED)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3094 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3095 garray_T ga;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3096 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3097 int mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3098 int nomark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3099 int changes = 1;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3100 int i;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3101
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3102 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3103 * 1: walk the tree to find all leafs, put the info in "ga".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3104 * 2: sort the lines
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3105 * 3: display the list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3106 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3107 mark = ++lastmark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3108 nomark = ++lastmark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3109 ga_init2(&ga, sizeof(char *), 20);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3110
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3111 uhp = curbuf->b_u_oldhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3112 while (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3113 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3114 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3115 && uhp->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3116 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3117 if (ga_grow(&ga, 1) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3118 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3119 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7d ",
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3120 uhp->uh_seq, changes);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3121 add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3122 uhp->uh_time);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3123 if (uhp->uh_save_nr > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3124 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3125 while (STRLEN(IObuff) < 33)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3126 STRCAT(IObuff, " ");
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3127 vim_snprintf_add((char *)IObuff, IOSIZE,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3128 " %3ld", uhp->uh_save_nr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3129 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3130 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3131 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3132
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3133 uhp->uh_walk = mark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3134
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3135 // go down in the tree if we haven't been there
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3136 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3137 && uhp->uh_prev.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3138 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3139 uhp = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3140 ++changes;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3141 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3142
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3143 // go to alternate branch if we haven't been there
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3144 else if (uhp->uh_alt_next.ptr != NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3145 && uhp->uh_alt_next.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3146 && uhp->uh_alt_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3147 uhp = uhp->uh_alt_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3148
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3149 // go up in the tree if we haven't been there and we are at the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3150 // start of alternate branches
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3151 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3152 && uhp->uh_next.ptr->uh_walk != nomark
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3153 && uhp->uh_next.ptr->uh_walk != mark)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3154 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3155 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3156 --changes;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3157 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3158
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3159 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3160 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3161 // need to backtrack; mark this node as done
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3162 uhp->uh_walk = nomark;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3163 if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3164 uhp = uhp->uh_alt_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3165 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3166 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3167 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3168 --changes;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3169 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3170 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3171 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3172
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3173 if (ga.ga_len == 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3174 msg(_("Nothing to undo"));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3175 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3176 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3177 sort_strings((char_u **)ga.ga_data, ga.ga_len);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3178
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3179 msg_start();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3180 msg_puts_attr(_("number changes when saved"),
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3181 HL_ATTR(HLF_T));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3182 for (i = 0; i < ga.ga_len && !got_int; ++i)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3183 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3184 msg_putchar('\n');
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3185 if (got_int)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3186 break;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3187 msg_puts(((char **)ga.ga_data)[i]);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3188 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3189 msg_end();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3190
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3191 ga_clear_strings(&ga);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3192 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3193 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3194
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3195 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3196 * ":undojoin": continue adding to the last entry list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3197 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3198 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3199 ex_undojoin(exarg_T *eap UNUSED)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3200 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3201 if (curbuf->b_u_newhead == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3202 return; // nothing changed before
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3203 if (curbuf->b_u_curhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3204 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3205 emsg(_(e_undojoin_is_not_allowed_after_undo));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3206 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3207 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3208 if (!curbuf->b_u_synced)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3209 return; // already unsynced
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3210 if (get_undolevel() < 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3211 return; // no entries, nothing to do
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3212 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3213 // Append next change to the last entry
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3214 curbuf->b_u_synced = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3215 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3216
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3217 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3218 * Called after writing or reloading the file and setting b_changed to FALSE.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3219 * Now an undo means that the buffer is modified.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3220 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3221 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3222 u_unchanged(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3223 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3224 u_unch_branch(buf->b_u_oldhead);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3225 buf->b_did_warn = FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3226 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3227
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3228 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3229 * After reloading a buffer which was saved for 'undoreload': Find the first
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3230 * line that was changed and set the cursor there.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3231 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3232 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3233 u_find_first_changed(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3234 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3235 u_header_T *uhp = curbuf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3236 u_entry_T *uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3237 linenr_T lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3238
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3239 if (curbuf->b_u_curhead != NULL || uhp == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3240 return; // undid something in an autocmd?
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3241
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3242 // Check that the last undo block was for the whole file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3243 uep = uhp->uh_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3244 if (uep->ue_top != 0 || uep->ue_bot != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3245 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3246
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3247 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3248 && lnum <= uep->ue_size; ++lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3249 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3250 char_u *p = ml_get_buf(curbuf, lnum, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3251
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3252 if (uep->ue_array[lnum - 1].ul_len != curbuf->b_ml.ml_line_len
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3253 || memcmp(p, uep->ue_array[lnum - 1].ul_line, uep->ue_array[lnum - 1].ul_len) != 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3254 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3255 CLEAR_POS(&(uhp->uh_cursor));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3256 uhp->uh_cursor.lnum = lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3257 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3258 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3259 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3260 if (curbuf->b_ml.ml_line_count != uep->ue_size)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3261 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3262 // lines added or deleted at the end, put the cursor there
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3263 CLEAR_POS(&(uhp->uh_cursor));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3264 uhp->uh_cursor.lnum = lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3265 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3266 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3267
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3268 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3269 * Increase the write count, store it in the last undo header, what would be
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3270 * used for "u".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3271 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3272 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3273 u_update_save_nr(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3274 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3275 u_header_T *uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3276
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3277 ++buf->b_u_save_nr_last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3278 buf->b_u_save_nr_cur = buf->b_u_save_nr_last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3279 uhp = buf->b_u_curhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3280 if (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3281 uhp = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3282 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3283 uhp = buf->b_u_newhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3284 if (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3285 uhp->uh_save_nr = buf->b_u_save_nr_last;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3286 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3287
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3288 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3289 u_unch_branch(u_header_T *uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3290 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3291 u_header_T *uh;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3292
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3293 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3294 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3295 uh->uh_flags |= UH_CHANGED;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3296 if (uh->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3297 u_unch_branch(uh->uh_alt_next.ptr); // recursive
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3298 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3299 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3300
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3301 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3302 * Get pointer to last added entry.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3303 * If it's not valid, give an error message and return NULL.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3304 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3305 static u_entry_T *
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3306 u_get_headentry(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3307 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3308 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3309 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3310 iemsg(e_undo_list_corrupt);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3311 return NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3312 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3313 return curbuf->b_u_newhead->uh_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3314 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3315
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3316 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3317 * u_getbot(): compute the line number of the previous u_save
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3318 * It is called only when b_u_synced is FALSE.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3319 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3320 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3321 u_getbot(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3322 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3323 u_entry_T *uep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3324 linenr_T extra;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3325
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3326 uep = u_get_headentry(); // check for corrupt undo list
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3327 if (uep == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3328 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3329
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3330 uep = curbuf->b_u_newhead->uh_getbot_entry;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3331 if (uep != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3332 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3333 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3334 * the new ue_bot is computed from the number of lines that has been
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3335 * inserted (0 - deleted) since calling u_save. This is equal to the
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3336 * old line count subtracted from the current line count.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3337 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3338 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3339 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3340 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3341 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3342 iemsg(e_undo_line_missing);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3343 uep->ue_bot = uep->ue_top + 1; // assume all lines deleted, will
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3344 // get all the old lines back
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3345 // without deleting the current
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3346 // ones
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3347 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3348
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3349 curbuf->b_u_newhead->uh_getbot_entry = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3350 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3351
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3352 curbuf->b_u_synced = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3353 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3354
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3355 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3356 * Free one header "uhp" and its entry list and adjust the pointers.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3357 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3358 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3359 u_freeheader(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3360 buf_T *buf,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3361 u_header_T *uhp,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3362 u_header_T **uhpp) // if not NULL reset when freeing this header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3363 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3364 u_header_T *uhap;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3365
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3366 // When there is an alternate redo list free that branch completely,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3367 // because we can never go there.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3368 if (uhp->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3369 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3370
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3371 if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3372 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3373
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3374 // Update the links in the list to remove the header.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3375 if (uhp->uh_next.ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3376 buf->b_u_oldhead = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3377 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3378 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3379
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3380 if (uhp->uh_prev.ptr == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3381 buf->b_u_newhead = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3382 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3383 for (uhap = uhp->uh_prev.ptr; uhap != NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3384 uhap = uhap->uh_alt_next.ptr)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3385 uhap->uh_next.ptr = uhp->uh_next.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3386
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3387 u_freeentries(buf, uhp, uhpp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3388 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3389
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3390 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3391 * Free an alternate branch and any following alternate branches.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3392 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3393 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3394 u_freebranch(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3395 buf_T *buf,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3396 u_header_T *uhp,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3397 u_header_T **uhpp) // if not NULL reset when freeing this header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3398 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3399 u_header_T *tofree, *next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3400
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3401 // If this is the top branch we may need to use u_freeheader() to update
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3402 // all the pointers.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3403 if (uhp == buf->b_u_oldhead)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3404 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3405 while (buf->b_u_oldhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3406 u_freeheader(buf, buf->b_u_oldhead, uhpp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3407 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3408 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3409
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3410 if (uhp->uh_alt_prev.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3411 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3412
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3413 next = uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3414 while (next != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3415 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3416 tofree = next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3417 if (tofree->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3418 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); // recursive
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3419 next = tofree->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3420 u_freeentries(buf, tofree, uhpp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3421 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3422 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3423
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3424 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3425 * Free all the undo entries for one header and the header itself.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3426 * This means that "uhp" is invalid when returning.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3427 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3428 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3429 u_freeentries(
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3430 buf_T *buf,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3431 u_header_T *uhp,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3432 u_header_T **uhpp) // if not NULL reset when freeing this header
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3433 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3434 u_entry_T *uep, *nuep;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3435
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3436 // Check for pointers to the header that become invalid now.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3437 if (buf->b_u_curhead == uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3438 buf->b_u_curhead = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3439 if (buf->b_u_newhead == uhp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3440 buf->b_u_newhead = NULL; // freeing the newest entry
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3441 if (uhpp != NULL && uhp == *uhpp)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3442 *uhpp = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3443
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3444 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3445 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3446 nuep = uep->ue_next;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3447 u_freeentry(uep, uep->ue_size);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3448 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3449
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3450 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3451 uhp->uh_magic = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3452 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3453 vim_free((char_u *)uhp);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3454 --buf->b_u_numhead;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3455 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3456
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3457 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3458 * free entry 'uep' and 'n' lines in uep->ue_array[]
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3459 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3460 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3461 u_freeentry(u_entry_T *uep, long n)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3462 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3463 while (n > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3464 vim_free(uep->ue_array[--n].ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3465 vim_free((char_u *)uep->ue_array);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3466 #ifdef U_DEBUG
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3467 uep->ue_magic = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3468 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3469 vim_free((char_u *)uep);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3470 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3471
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3472 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3473 * invalidate the undo buffer; called when storage has already been released
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3474 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3475 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3476 u_clearall(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3477 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3478 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3479 buf->b_u_synced = TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3480 buf->b_u_numhead = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3481 buf->b_u_line_ptr.ul_line = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3482 buf->b_u_line_ptr.ul_len = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3483 buf->b_u_line_lnum = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3484 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3485
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3486 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3487 * Save the line "lnum" for the "U" command.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3488 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3489 static void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3490 u_saveline(linenr_T lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3491 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3492 if (lnum == curbuf->b_u_line_lnum) // line is already saved
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3493 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3494 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) // should never happen
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3495 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3496 u_clearline();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3497 curbuf->b_u_line_lnum = lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3498 if (curwin->w_cursor.lnum == lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3499 curbuf->b_u_line_colnr = curwin->w_cursor.col;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3500 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3501 curbuf->b_u_line_colnr = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3502 if (u_save_line(&curbuf->b_u_line_ptr, lnum) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3503 do_outofmem_msg((long_u)0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3504 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3505
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3506 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3507 * clear the line saved for the "U" command
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3508 * (this is used externally for crossing a line while in insert mode)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3509 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3510 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3511 u_clearline(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3512 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3513 if (curbuf->b_u_line_ptr.ul_line == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3514 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3515
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3516 VIM_CLEAR(curbuf->b_u_line_ptr.ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3517 curbuf->b_u_line_ptr.ul_len = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3518 curbuf->b_u_line_lnum = 0;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3519 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3520
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3521 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3522 * Implementation of the "U" command.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3523 * Differentiation from vi: "U" can be undone with the next "U".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3524 * We also allow the cursor to be in another line.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3525 * Careful: may trigger autocommands that reload the buffer.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3526 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3527 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3528 u_undoline(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3529 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3530 colnr_T t;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3531 undoline_T oldp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3532
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3533 if (undo_off)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3534 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3535
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3536 if (curbuf->b_u_line_ptr.ul_line == NULL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3537 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3538 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3539 beep_flush();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3540 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3541 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3542
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3543 // first save the line for the 'u' command
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3544 if (u_savecommon(curbuf->b_u_line_lnum - 1,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3545 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3546 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3547 if (u_save_line(&oldp, curbuf->b_u_line_lnum) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3548 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3549 do_outofmem_msg((long_u)0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3550 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3551 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3552 ml_replace_len(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr.ul_line,
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3553 curbuf->b_u_line_ptr.ul_len, TRUE, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3554 changed_bytes(curbuf->b_u_line_lnum, 0);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3555 curbuf->b_u_line_ptr = oldp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3556
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3557 t = curbuf->b_u_line_colnr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3558 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3559 curbuf->b_u_line_colnr = curwin->w_cursor.col;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3560 curwin->w_cursor.col = t;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3561 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3562 check_cursor_col();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3563 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3564
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3565 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3566 * Free all allocated memory blocks for the buffer 'buf'.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3567 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3568 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3569 u_blockfree(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3570 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3571 while (buf->b_u_oldhead != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3572 u_freeheader(buf, buf->b_u_oldhead, NULL);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3573 vim_free(buf->b_u_line_ptr.ul_line);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3574 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3575
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3576 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3577 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3578 * check the first character, because it can only be "dos", "unix" or "mac").
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3579 * "nofile" and "scratch" type buffers are considered to always be unchanged.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3580 * Also considers a buffer changed when a terminal window contains a running
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3581 * job.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3582 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3583 int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3584 bufIsChanged(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3585 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3586 #ifdef FEAT_TERMINAL
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3587 if (term_job_running_not_none(buf->b_term))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3588 return TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3589 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3590 return bufIsChangedNotTerm(buf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3591 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3592
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3593 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3594 * Return TRUE if any buffer has changes. Also buffers that are not written.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3595 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3596 int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3597 anyBufIsChanged(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3598 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3599 buf_T *buf;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3600
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3601 FOR_ALL_BUFFERS(buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3602 if (bufIsChanged(buf))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3603 return TRUE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3604 return FALSE;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3605 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3606
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3607 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3608 * Like bufIsChanged() but ignoring a terminal window.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3609 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3610 int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3611 bufIsChangedNotTerm(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3612 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3613 // In a "prompt" buffer we do respect 'modified', so that we can control
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3614 // closing the window by setting or resetting that option.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3615 return (!bt_dontwrite(buf) || bt_prompt(buf))
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3616 && (buf->b_changed || file_ff_differs(buf, TRUE));
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3617 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3618
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3619 int
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3620 curbufIsChanged(void)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3621 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3622 return bufIsChanged(curbuf);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3623 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3624
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3625 #if defined(FEAT_EVAL) || defined(PROTO)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3626
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3627 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3628 * For undotree(): Append the list of undo blocks at "first_uhp" to "list".
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3629 * Recursive.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3630 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3631 static void
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3632 u_eval_tree(buf_T *buf, u_header_T *first_uhp, list_T *list)
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3633 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3634 u_header_T *uhp = first_uhp;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3635 dict_T *dict;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3636
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3637 while (uhp != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3638 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3639 dict = dict_alloc();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3640 if (dict == NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3641 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3642 dict_add_number(dict, "seq", uhp->uh_seq);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3643 dict_add_number(dict, "time", (long)uhp->uh_time);
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3644 if (uhp == buf->b_u_newhead)
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3645 dict_add_number(dict, "newhead", 1);
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3646 if (uhp == buf->b_u_curhead)
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3647 dict_add_number(dict, "curhead", 1);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3648 if (uhp->uh_save_nr > 0)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3649 dict_add_number(dict, "save", uhp->uh_save_nr);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3650
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3651 if (uhp->uh_alt_next.ptr != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3652 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3653 list_T *alt_list = list_alloc();
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3654
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3655 if (alt_list != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3656 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3657 // Recursive call to add alternate undo tree.
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3658 u_eval_tree(buf, uhp->uh_alt_next.ptr, alt_list);
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3659 dict_add_list(dict, "alt", alt_list);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3660 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3661 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3662
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3663 list_append_dict(list, dict);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3664 uhp = uhp->uh_prev.ptr;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3665 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3666 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3667
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3668 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3669 * "undofile(name)" function
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3670 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3671 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3672 f_undofile(typval_T *argvars UNUSED, typval_T *rettv)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3673 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3674 if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3675 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3676
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3677 rettv->v_type = VAR_STRING;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3678 #ifdef FEAT_PERSISTENT_UNDO
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3679 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3680 char_u *fname = tv_get_string(&argvars[0]);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3681
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3682 if (*fname == NUL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3683 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3684 // If there is no file name there will be no undo file.
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3685 rettv->vval.v_string = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3686 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3687 else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3688 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3689 char_u *ffname = FullName_save(fname, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3690
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3691 if (ffname != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3692 rettv->vval.v_string = u_get_undo_file_name(ffname, FALSE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3693 vim_free(ffname);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3694 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3695 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3696 #else
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3697 rettv->vval.v_string = NULL;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3698 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3699 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3700 #ifdef FEAT_PERSISTENT_UNDO
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3701 /*
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3702 * Reset undofile option and delete the undofile
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3703 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3704 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3705 u_undofile_reset_and_delete(buf_T *buf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3706 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3707 char_u *file_name;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3708
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3709 if (!buf->b_p_udf)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3710 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3711
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3712 file_name = u_get_undo_file_name(buf->b_ffname, TRUE);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3713 if (file_name != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3714 {
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3715 mch_remove(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3716 vim_free(file_name);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3717 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3718
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3719 set_option_value_give_err((char_u *)"undofile", 0L, NULL, OPT_LOCAL);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3720 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3721 #endif
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3722
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3723 /*
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3724 * "undotree(expr)" function
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3725 */
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3726 void
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3727 f_undotree(typval_T *argvars UNUSED, typval_T *rettv)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3728 {
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3729 if (in_vim9script() && check_for_opt_buffer_arg(argvars, 0) == FAIL)
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3730 return;
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3731
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3732 if (rettv_dict_alloc(rettv) == FAIL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3733 return;
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3734
32909
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3735 typval_T *tv = &argvars[0];
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3736 buf_T *buf = tv->v_type == VAR_UNKNOWN ? curbuf : get_buf_arg(tv);
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3737 if (buf == NULL)
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3738 return;
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3739
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3740 dict_T *dict = rettv->vval.v_dict;
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3741
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3742 dict_add_number(dict, "synced", (long)buf->b_u_synced);
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3743 dict_add_number(dict, "seq_last", buf->b_u_seq_last);
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3744 dict_add_number(dict, "save_last", buf->b_u_save_nr_last);
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3745 dict_add_number(dict, "seq_cur", buf->b_u_seq_cur);
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3746 dict_add_number(dict, "time_cur", (long)buf->b_u_time_cur);
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3747 dict_add_number(dict, "save_cur", buf->b_u_save_nr_cur);
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3748
32909
b80d18055370 patch 9.0.1763: crash when passing invalid buffer to undotree()
Christian Brabandt <cb@256bit.org>
parents: 32732
diff changeset
3749 list_T *list = list_alloc();
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3750 if (list != NULL)
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3751 {
32732
257ab4ee8e4a patch 9.0.1686: undotree() only works for the current buffer
Christian Brabandt <cb@256bit.org>
parents: 32670
diff changeset
3752 u_eval_tree(buf, buf->b_u_oldhead, list);
32670
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3753 dict_add_list(dict, "entries", list);
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3754 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3755 }
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3756
695b50472e85 Fix line endings issue
Christian Brabandt <cb@256bit.org>
parents: 32669
diff changeset
3757 #endif