annotate src/undo.c @ 8184:1f81c571d0e7 v7.4.1385

commit https://github.com/vim/vim/commit/5e83840756f6bb446d5cd8d026c1430b203645f1 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 21 23:12:41 2016 +0100 patch 7.4.1385 Problem: Compiler warning for using array. Solution: Use the right member name. (Yegappan Lakshmanan)
author Christian Brabandt <cb@256bit.org>
date Sun, 21 Feb 2016 23:15:05 +0100
parents 985cd5917560
children 05b88224cea1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1 /* vi:set ts=8 sts=4 sw=4:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3 * VIM - Vi IMproved by Bram Moolenaar
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
4 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
5 * Do ":help uganda" in Vim to read copying and usage conditions.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
6 * Do ":help credits" in Vim to see a list of people who contributed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
7 * See README.txt for an overview of the Vim source code.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
8 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
9
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
10 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
11 * undo.c: multi level undo facility
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
12 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
13 * The saved lines are stored in a list of lists (one for each buffer):
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
14 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
15 * b_u_oldhead------------------------------------------------+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
16 * |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
17 * V
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
18 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
19 * b_u_newhead--->| u_header | | u_header | | u_header |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
20 * | uh_next------>| uh_next------>| uh_next---->NULL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
22 * | uh_entry | | uh_entry | | uh_entry |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
23 * +--------|-----+ +--------|-----+ +--------|-----+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
24 * | | |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
25 * V V V
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
26 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
27 * | u_entry | | u_entry | | u_entry |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
28 * | ue_next | | ue_next | | ue_next |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
29 * +--------|-----+ +--------|-----+ +--------|-----+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
30 * | | |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
31 * V V V
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
32 * +--------------+ NULL NULL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
33 * | u_entry |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
34 * | ue_next |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
35 * +--------|-----+
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
36 * |
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
37 * V
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
38 * etc.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
39 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
40 * Each u_entry list contains the information for one undo or redo.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
41 * curbuf->b_u_curhead points to the header of the last undo (the next redo),
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
42 * or is NULL if nothing has been undone (end of the branch).
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
43 *
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
45 * each point in the list a branch may appear for an alternate to redo. The
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
46 * uh_seq field is numbered sequentially to be able to find a newer or older
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
47 * branch.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
48 *
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
49 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
50 * b_u_oldhead --->| u_header | | u_header |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
51 * | uh_alt_next ---->| uh_alt_next ----> NULL
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
52 * NULL <----- uh_alt_prev |<------ uh_alt_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
53 * | uh_prev | | uh_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
54 * +-----|---------+ +-----|---------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
55 * | |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
56 * V V
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
57 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
58 * | u_header | | u_header |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
59 * | uh_alt_next | | uh_alt_next |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
61 * | uh_prev | | uh_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
62 * +-----|---------+ +-----|---------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
63 * | |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
64 * V V
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
65 * NULL +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
66 * | u_header | | u_header |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
67 * | uh_alt_next ---->| uh_alt_next |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
68 * | uh_alt_prev |<------ uh_alt_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
69 * | uh_prev | | uh_prev |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
70 * +-----|---------+ +-----|---------+
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
71 * | |
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
72 * etc. etc.
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
73 *
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
74 *
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
75 * All data is allocated and will all be freed when the buffer is unloaded.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
76 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
77
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
78 /* Uncomment the next line for including the u_check() function. This warns
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
79 * for errors in the debug information. */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
80 /* #define U_DEBUG 1 */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
83
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
84 /* Size of buffer used for encryption. */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
85 #define CRYPT_BUF_SIZE 8192
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
86
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
87 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
88
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
89 /* Structure passed around between functions.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
90 * Avoids passing cryptstate_T when encryption not available. */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
91 typedef struct {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
92 buf_T *bi_buf;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
93 FILE *bi_fp;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
94 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
95 cryptstate_T *bi_state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
96 char_u *bi_buffer; /* CRYPT_BUF_SIZE, NULL when not buffering */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
97 size_t bi_used; /* bytes written to/read from bi_buffer */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
98 size_t bi_avail; /* bytes available in bi_buffer */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
99 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
100 } bufinfo_T;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
101
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
102
7805
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
103 static long get_undolevel(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
104 static void u_unch_branch(u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
105 static u_entry_T *u_get_headentry(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
106 static void u_getbot(void);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
107 static void u_doit(int count);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
108 static void u_undoredo(int undo);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
109 static void u_undo_end(int did_undo, int absolute);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
110 static void u_add_time(char_u *buf, size_t buflen, time_t tt);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
111 static void u_freeheader(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
112 static void u_freebranch(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
113 static void u_freeentries(buf_T *buf, u_header_T *uhp, u_header_T **uhpp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
114 static void u_freeentry(u_entry_T *, long);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
115 #ifdef FEAT_PERSISTENT_UNDO
7805
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
116 static void corruption_error(char *mesg, char_u *file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
117 static void u_free_uhp(u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
118 static int undo_write(bufinfo_T *bi, char_u *ptr, size_t len);
8128
985cd5917560 commit https://github.com/vim/vim/commit/1d6fbe654066845ff2a182ed258e6e9d3408fa90
Christian Brabandt <cb@256bit.org>
parents: 7835
diff changeset
119 # ifdef FEAT_CRYPT
7805
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
120 static int undo_flush(bufinfo_T *bi);
8128
985cd5917560 commit https://github.com/vim/vim/commit/1d6fbe654066845ff2a182ed258e6e9d3408fa90
Christian Brabandt <cb@256bit.org>
parents: 7835
diff changeset
121 # endif
7805
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
122 static int fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
123 static int undo_write_bytes(bufinfo_T *bi, long_u nr, int len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
124 static void put_header_ptr(bufinfo_T *bi, u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
125 static int undo_read_4c(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
126 static int undo_read_2c(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
127 static int undo_read_byte(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
128 static time_t undo_read_time(bufinfo_T *bi);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
129 static int undo_read(bufinfo_T *bi, char_u *buffer, size_t size);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
130 static char_u *read_string_decrypt(bufinfo_T *bi, int len);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
131 static int serialize_header(bufinfo_T *bi, char_u *hash);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
132 static int serialize_uhp(bufinfo_T *bi, u_header_T *uhp);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
133 static u_header_T *unserialize_uhp(bufinfo_T *bi, char_u *file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
134 static int serialize_uep(bufinfo_T *bi, u_entry_T *uep);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
135 static u_entry_T *unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
136 static void serialize_pos(bufinfo_T *bi, pos_T pos);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
137 static void unserialize_pos(bufinfo_T *bi, pos_T *pos);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
138 static void serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
139 static void unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
140 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
141
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
142 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7805
0b6c37dd858d commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
Christian Brabandt <cb@256bit.org>
parents: 6771
diff changeset
143 static char_u *u_save_line(linenr_T);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
144
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
145 /* used in undo_end() to report number of added and deleted lines */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
146 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
147
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
148 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
149 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
150 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
151 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
152 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
153
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
154 static int lastmark = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
155
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
156 #if defined(U_DEBUG) || defined(PROTO)
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
157 /*
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
158 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
159 * looks wrong.
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
160 */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
161 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
162 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
163 static int header_count;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
164
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
165 static void
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
166 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
167 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
168 u_header_T *exp_uh_alt_prev)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
169 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
170 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
171
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
172 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
173 return;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
174 ++header_count;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
175 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
176 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
177 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
178 return;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
179 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
180 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
181 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
182 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
183 return;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
184 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
185
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
186 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
187 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
188 else
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
189 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
190 /* Check pointers back are correct. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
191 if (uhp->uh_next.ptr != exp_uh_next)
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
192 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
193 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
194 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
195 exp_uh_next, uhp->uh_next.ptr);
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
196 }
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
197 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
198 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
199 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
200 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
201 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
202 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
203
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
204 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
205 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
206 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
207 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
208 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
209 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
210 break;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
211 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
212 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
213
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
214 /* Check the next alt tree. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
215 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp);
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
216
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
217 /* Check the next header in this branch. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
218 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
219 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
220 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
221
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
222 static void
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
223 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
224 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
225 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
226 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
227 header_count = 0;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
228
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
229 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
230
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
231 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
232 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
233 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
234 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
235 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
236 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
237 {
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
238 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
239 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
240 (long)header_count, (long)curbuf->b_u_numhead);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
241 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
242 }
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
243 #endif
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
244
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
245 /*
344
7033303ea0c0 updated for version 7.0089
vimboss
parents: 179
diff changeset
246 * Save the current line for both the "u" and "U" command.
4303
790238e5a46c updated for version 7.3.901
Bram Moolenaar <bram@vim.org>
parents: 3751
diff changeset
247 * Careful: may trigger autocommands that reload the buffer.
344
7033303ea0c0 updated for version 7.0089
vimboss
parents: 179
diff changeset
248 * Returns OK or FAIL.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
249 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
250 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
251 u_save_cursor(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
252 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
253 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
254 (linenr_T)(curwin->w_cursor.lnum + 1)));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
255 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
256
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
257 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
258 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
259 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
260 * Careful: may trigger autocommands that reload the buffer.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
261 * Returns FAIL when lines could not be saved, OK otherwise.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
262 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
263 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
264 u_save(linenr_T top, linenr_T bot)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
265 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
266 if (undo_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
267 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
268
4303
790238e5a46c updated for version 7.3.901
Bram Moolenaar <bram@vim.org>
parents: 3751
diff changeset
269 if (top > curbuf->b_ml.ml_line_count
790238e5a46c updated for version 7.3.901
Bram Moolenaar <bram@vim.org>
parents: 3751
diff changeset
270 || top >= bot
790238e5a46c updated for version 7.3.901
Bram Moolenaar <bram@vim.org>
parents: 3751
diff changeset
271 || bot > curbuf->b_ml.ml_line_count + 1)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
272 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
273
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
274 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
275 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
276
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
277 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
278 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
279
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
280 /*
2181
f838615313cd updated for version 7.2.441
Bram Moolenaar <bram@vim.org>
parents: 2165
diff changeset
281 * Save the line "lnum" (used by ":s" and "~" command).
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
282 * The line is replaced, so the new bottom line is lnum + 1.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
283 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
284 * Returns FAIL when lines could not be saved, OK otherwise.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
285 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
286 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
287 u_savesub(linenr_T lnum)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
288 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
289 if (undo_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
290 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
291
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
292 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
293 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
294
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
295 /*
2181
f838615313cd updated for version 7.2.441
Bram Moolenaar <bram@vim.org>
parents: 2165
diff changeset
296 * A new line is inserted before line "lnum" (used by :s command).
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
297 * The line is inserted, so the new bottom line is lnum + 1.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
298 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
299 * Returns FAIL when lines could not be saved, OK otherwise.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
300 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
301 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
302 u_inssub(linenr_T lnum)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
303 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
304 if (undo_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
305 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
306
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
307 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
308 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
309
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
310 /*
2181
f838615313cd updated for version 7.2.441
Bram Moolenaar <bram@vim.org>
parents: 2165
diff changeset
311 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
312 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
313 * becomes empty.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
314 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
315 * Returns FAIL when lines could not be saved, OK otherwise.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
316 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
317 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
318 u_savedel(linenr_T lnum, long nlines)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
319 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
320 if (undo_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
321 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
322
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
323 return (u_savecommon(lnum - 1, lnum + nlines,
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
324 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
325 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
326
632
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
327 /*
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
328 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
329 * return FALSE.
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
330 */
912
adf6a9dcaded updated for version 7.0-038
vimboss
parents: 839
diff changeset
331 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
332 undo_allowed(void)
632
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
333 {
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
334 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
335 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
336 {
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
337 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
338 return FALSE;
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
339 }
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
340
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
341 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
342 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
343 if (sandbox != 0)
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
344 {
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
345 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
346 return FALSE;
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
347 }
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
348 #endif
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
349
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
350 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
351 * caller of getcmdline() may get confused. */
634
1c586ee8dd45 updated for version 7.0183
vimboss
parents: 632
diff changeset
352 if (textlock != 0)
632
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
353 {
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
354 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
355 return FALSE;
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
356 }
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
357
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
358 return TRUE;
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
359 }
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
360
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
361 /*
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
362 * Get the undolevle value for the current buffer.
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
363 */
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
364 static long
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
365 get_undolevel(void)
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
366 {
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
367 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL)
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
368 return p_ul;
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
369 return curbuf->b_p_ul;
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
370 }
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
371
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
372 /*
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
373 * Common code for various ways to save text before a change.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
374 * "top" is the line above the first changed line.
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
375 * "bot" is the line below the last changed line.
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
376 * "newbot" is the new bottom line. Use zero when not known.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
377 * "reload" is TRUE when saving for a buffer reload.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
378 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
379 * Returns FAIL when lines could not be saved, OK otherwise.
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
380 */
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
381 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
382 u_savecommon(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
383 linenr_T top,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
384 linenr_T bot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
385 linenr_T newbot,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
386 int reload)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
387 {
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
388 linenr_T lnum;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
389 long i;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
390 u_header_T *uhp;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
391 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
392 u_entry_T *uep;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
393 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
394 long size;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
395
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
396 if (!reload)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
397 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
398 /* When making changes is not allowed return FAIL. It's a crude way
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
399 * to make all change commands fail. */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
400 if (!undo_allowed())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
401 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
402
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
403 #ifdef FEAT_NETBEANS_INTG
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
404 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
405 * Netbeans defines areas that cannot be modified. Bail out here when
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
406 * trying to change text in a guarded area.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
407 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
408 if (netbeans_active())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
409 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
410 if (netbeans_is_guarded(top, bot))
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
411 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
412 EMSG(_(e_guarded));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
413 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
414 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
415 if (curbuf->b_p_ro)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
416 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
417 EMSG(_(e_nbreadonly));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
418 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
419 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
420 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
421 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
422
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
423 #ifdef FEAT_AUTOCMD
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
424 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
425 * Saving text for undo means we are going to make a change. Give a
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
426 * warning for a read-only file before making the change, so that the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
427 * FileChangedRO event can replace the buffer with a read-write version
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
428 * (e.g., obtained from a source control system).
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
429 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
430 change_warning(0);
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
431 if (bot > curbuf->b_ml.ml_line_count + 1)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
432 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
433 /* This happens when the FileChangedRO autocommand changes the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
434 * file in a way it becomes shorter. */
5621
be61f315eafe updated for version 7.4.157
Bram Moolenaar <bram@vim.org>
parents: 5448
diff changeset
435 EMSG(_("E881: Line count changed unexpectedly"));
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
436 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
437 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
438 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
439 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
440
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
441 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
442 u_check(FALSE);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
443 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
444
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
445 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
446
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
447 /*
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
448 * If curbuf->b_u_synced == TRUE make a new header.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
449 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
450 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
451 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
452 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
453 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
454 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
455 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
456
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
457 if (get_undolevel() >= 0)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
458 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
459 /*
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
460 * Make a new header entry. Do this first so that we don't mess
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
461 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
462 */
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
463 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
464 if (uhp == NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
465 goto nomem;
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
466 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
467 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
468 #endif
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
469 }
766
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
470 else
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
471 uhp = NULL;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
472
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
473 /*
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
474 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
475 * including curbuf->b_u_curhead to an alternate branch.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
476 */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
477 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
478 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
479 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
480 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
481 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
482 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
483
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
484 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
485 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
486 */
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
487 while (curbuf->b_u_numhead > get_undolevel()
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
488 && curbuf->b_u_oldhead != NULL)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
489 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
490 u_header_T *uhfree = curbuf->b_u_oldhead;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
491
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
492 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
493 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
494 u_freebranch(curbuf, uhfree, &old_curhead);
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
495 else if (uhfree->uh_alt_next.ptr == NULL)
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
496 /* There is no branch, only free one header. */
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
497 u_freeheader(curbuf, uhfree, &old_curhead);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
498 else
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
499 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
500 /* Free the oldest alternate branch as a whole. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
501 while (uhfree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
502 uhfree = uhfree->uh_alt_next.ptr;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
503 u_freebranch(curbuf, uhfree, &old_curhead);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
504 }
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
505 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
506 u_check(TRUE);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
507 #endif
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
508 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
509
766
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
510 if (uhp == NULL) /* no undo at all */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
511 {
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
512 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
513 u_freebranch(curbuf, old_curhead, NULL);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
514 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
515 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
516 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
517
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
518 uhp->uh_prev.ptr = NULL;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
519 uhp->uh_next.ptr = curbuf->b_u_newhead;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
520 uhp->uh_alt_next.ptr = old_curhead;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
521 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
522 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
523 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
524 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
525 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
526 old_curhead->uh_alt_prev.ptr = uhp;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
527 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
528 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
529 }
1056
e6d25347de2c updated for version 7.0-182
vimboss
parents: 944
diff changeset
530 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
531 uhp->uh_alt_prev.ptr = NULL;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
532 if (curbuf->b_u_newhead != NULL)
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
533 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
534
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
535 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
536 curbuf->b_u_seq_cur = uhp->uh_seq;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
537 uhp->uh_time = time(NULL);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
538 uhp->uh_save_nr = 0;
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
539 curbuf->b_u_time_cur = uhp->uh_time + 1;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
540
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
541 uhp->uh_walk = 0;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
542 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
543 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
544 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
545 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
546 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
547 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
548 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
549 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
550 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
551
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
552 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
553 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
554 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
555
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
556 /* save named marks and Visual marks for undo */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
557 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
558 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
559
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
560 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
561 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
562 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
563 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
564 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
565 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
566 {
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
567 if (get_undolevel() < 0) /* no undo at all */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
568 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
569
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
570 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
571 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
572 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
573 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
574 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
575 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
576 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
577 * long.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
578 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
579 if (size == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
580 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
581 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
582 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
583 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
584 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
585 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
586 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
587
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
588 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
589 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
590 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
591 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
592 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
593 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
594 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
595 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
596 || (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
597 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
598 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
599 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
600
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
601 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
602 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
603 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
604 if (i > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
605 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
606 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
607 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
608 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
609 u_getbot();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
610 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
611
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
612 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
613 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
614 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
615 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
616 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
617 * the executed command. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
618 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
619 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
620 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
621 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
622
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
623 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
624 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
625 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
626 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
627 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
628 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
629 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
630 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
631 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
632 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
633 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
634 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
635 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
636 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
637 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
638 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
639
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
640 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
641 u_getbot();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
642 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
643
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
644 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
645 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
646 * With Amiga and MSDOS 16 bit we can't handle big undo's, because
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
647 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
648 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
649 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
650 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
651 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
652
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
653 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
654 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
655 */
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
656 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
657 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
658 goto nomem;
2215
cccb71c2c5c1 Fix uninit memory read in undo code. Fix uint32_t in proto file.
Bram Moolenaar <bram@vim.org>
parents: 2214
diff changeset
659 vim_memset(uep, 0, sizeof(u_entry_T));
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
660 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
661 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
662 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
663
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
664 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
665 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
666 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
667 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
668 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
669 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
670 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
671 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
672 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
673 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
674 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
675 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
676 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
677 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
678 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
679
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
680 if (size > 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
681 {
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
682 if ((uep->ue_array = (char_u **)U_ALLOC_LINE(
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
683 sizeof(char_u *) * size)) == NULL)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
684 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
685 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
686 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
687 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
688 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
689 {
481
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
690 fast_breakcheck();
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
691 if (got_int)
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
692 {
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
693 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
694 return FAIL;
66080ac5dab7 updated for version 7.0130
vimboss
parents: 414
diff changeset
695 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
696 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
697 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
698 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
699 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
700 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
701 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
702 }
359
6c62b9b939bd updated for version 7.0093
vimboss
parents: 356
diff changeset
703 else
6c62b9b939bd updated for version 7.0093
vimboss
parents: 356
diff changeset
704 uep->ue_array = NULL;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
705 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
706 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
707 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
708 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
709
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
710 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
711 u_check(FALSE);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
712 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
713 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
714
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
715 nomem:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
716 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
717 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
718 == 'y')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
719 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
720 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
721 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
722 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
723 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
724 return FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
725 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
726
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
727 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
728
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
729 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
730 # define UF_START_MAGIC_LEN 9
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
731 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
732 # define UF_HEADER_END_MAGIC 0xe7aa /* magic after last header */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
733 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
734 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
735 # define UF_VERSION 2 /* 2-byte undofile version number */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
736 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
737
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
738 /* extra fields for header */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
739 # define UF_LAST_SAVE_NR 1
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
740
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
741 /* extra fields for uhp */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
742 # define UHP_SAVE_NR 1
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
743
2229
d45902a5c61c Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents: 2223
diff changeset
744 static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s");
d45902a5c61c Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents: 2223
diff changeset
745
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
746 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
747 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE].
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
748 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
749 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
750 u_compute_hash(char_u *hash)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
751 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
752 context_sha256_T ctx;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
753 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
754 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
755
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
756 sha256_start(&ctx);
3194
972bd3fca556 updated for version 7.3.367
Bram Moolenaar <bram@vim.org>
parents: 2689
diff changeset
757 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
758 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
759 p = ml_get(lnum);
2217
120502692d82 Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents: 2215
diff changeset
760 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1));
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
761 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
762 sha256_finish(&ctx, hash);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
763 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
764
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
765 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
766 * Return an allocated string of the full path of the target undofile.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
767 * When "reading" is TRUE find the file to read, go over all directories in
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
768 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
769 * When "reading" is FALSE use the first name where the directory exists.
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
770 * Returns NULL when there is no place to write or no file to read.
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
771 */
2236
dc2e5ec0500d Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2235
diff changeset
772 char_u *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
773 u_get_undo_file_name(char_u *buf_ffname, int reading)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
774 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
775 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
776 char_u dir_name[IOSIZE + 1];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
777 char_u *munged_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
778 char_u *undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
779 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
780 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
781 struct stat st;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
782 char_u *ffname = buf_ffname;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
783 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
784 char_u fname_buf[MAXPATHL];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
785 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
786
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
787 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
788 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
789
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
790 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
791 /* Expand symlink in the file name, so that we put the undo file with the
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
792 * actual file instead of with the symlink. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
793 if (resolve_symlink(ffname, fname_buf) == OK)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
794 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
795 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
796
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
797 /* Loop over 'undodir'. When reading find the first file that exists.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
798 * When not reading use the first directory that exists or ".". */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
799 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
800 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
801 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
802 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ",");
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
803 if (dir_len == 1 && dir_name[0] == '.')
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
804 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
805 /* Use same directory as the ffname,
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
806 * "dir/name" -> "dir/.name.un~" */
2217
120502692d82 Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents: 2215
diff changeset
807 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5));
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
808 if (undo_file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
809 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
810 p = gettail(undo_file_name);
5704
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
811 #ifdef VMS
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
812 /* VMS can not handle more than one dot in the filenames
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
813 * use "dir/name" -> "dir/_un_name" - add _un_
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
814 * at the beginning to keep the extension */
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
815 mch_memmove(p + 4, p, STRLEN(p) + 1);
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
816 mch_memmove(p, "_un_", 4);
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
817
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
818 #else
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
819 /* Use same directory as the ffname,
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
820 * "dir/name" -> "dir/.name.un~" */
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
821 mch_memmove(p + 1, p, STRLEN(p) + 1);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
822 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
823 STRCAT(p, ".un~");
5704
47a673b20e49 updated for version 7.4.197
Bram Moolenaar <bram@vim.org>
parents: 5621
diff changeset
824 #endif
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
825 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
826 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
827 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
828 dir_name[dir_len] = NUL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
829 if (mch_isdir(dir_name))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
830 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
831 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
832 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
833 munged_name = vim_strsave(ffname);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
834 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
835 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
836 for (p = munged_name; *p != NUL; mb_ptr_adv(p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
837 if (vim_ispathsep(*p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
838 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
839 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
840 undo_file_name = concat_fnames(dir_name, munged_name, TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
841 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
842 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
843
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
844 /* When reading check if the file exists. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
845 if (undo_file_name != NULL && (!reading
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
846 || mch_stat((char *)undo_file_name, &st) >= 0))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
847 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
848 vim_free(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
849 undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
850 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
851
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
852 vim_free(munged_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
853 return undo_file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
854 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
855
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
856 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
857 corruption_error(char *mesg, char_u *file_name)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
858 {
2271
2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents: 2267
diff changeset
859 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
860 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
861
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
862 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
863 u_free_uhp(u_header_T *uhp)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
864 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
865 u_entry_T *nuep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
866 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
867
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
868 uep = uhp->uh_entry;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
869 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
870 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
871 nuep = uep->ue_next;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
872 u_freeentry(uep, uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
873 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
874 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
875 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
876 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
877
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
878 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
879 * Write a sequence of bytes to the undo file.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
880 * Buffers and encrypts as needed.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
881 * Returns OK or FAIL.
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
882 */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
883 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
884 undo_write(bufinfo_T *bi, char_u *ptr, size_t len)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
885 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
886 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
887 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
888 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
889 size_t len_todo = len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
890 char_u *p = ptr;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
891
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
892 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
893 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
894 size_t n = CRYPT_BUF_SIZE - bi->bi_used;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
895
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
896 mch_memmove(bi->bi_buffer + bi->bi_used, p, n);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
897 len_todo -= n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
898 p += n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
899 bi->bi_used = CRYPT_BUF_SIZE;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
900 if (undo_flush(bi) == FAIL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
901 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
902 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
903 if (len_todo > 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
904 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
905 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
906 bi->bi_used += len_todo;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
907 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
908 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
909 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
910 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
911 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
912 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
913 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
914 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
915
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
916 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
917 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
918 undo_flush(bufinfo_T *bi)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
919 {
6128
3aa37ad2c4ed updated for version 7.4.402
Bram Moolenaar <bram@vim.org>
parents: 6122
diff changeset
920 if (bi->bi_buffer != NULL && bi->bi_used > 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
921 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
922 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
923 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
924 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
925 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
926 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
927 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
928 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
929 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
930
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
931 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
932 * Write "ptr[len]" and crypt the bytes when needed.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
933 * Returns OK or FAIL.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
934 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
935 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
936 fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len)
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
937 {
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
938 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
939 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
940 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
941 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
942
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
943 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
944 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
945 /* crypting every piece of text separately */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
946 if (len < 100)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
947 copy = small_buf; /* no malloc()/free() for short strings */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
948 else
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
949 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
950 copy = lalloc(len, FALSE);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
951 if (copy == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
952 return 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
953 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
954 crypt_encode(bi->bi_state, ptr, len, copy);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
955 i = fwrite(copy, len, (size_t)1, bi->bi_fp);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
956 if (copy != small_buf)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
957 vim_free(copy);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
958 return i == 1 ? OK : FAIL;
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
959 }
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
960 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
961 return undo_write(bi, ptr, len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
962 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
963
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
964 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
965 * Write a number, MSB first, in "len" bytes.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
966 * Must match with undo_read_?c() functions.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
967 * Returns OK or FAIL.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
968 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
969 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
970 undo_write_bytes(bufinfo_T *bi, long_u nr, int len)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
971 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
972 char_u buf[8];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
973 int i;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
974 int bufi = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
975
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
976 for (i = len - 1; i >= 0; --i)
6132
0242c27e40e1 updated for version 7.4.404
Bram Moolenaar <bram@vim.org>
parents: 6128
diff changeset
977 buf[bufi++] = (char_u)(nr >> (i * 8));
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
978 return undo_write(bi, buf, (size_t)len);
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
979 }
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
980
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
981 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
982 * Write the pointer to an undo header. Instead of writing the pointer itself
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
983 * we use the sequence number of the header. This is converted back to
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
984 * pointers when reading. */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
985 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
986 put_header_ptr(bufinfo_T *bi, u_header_T *uhp)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
987 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
988 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
989 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
990
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
991 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
992 undo_read_4c(bufinfo_T *bi)
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
993 {
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
994 #ifdef FEAT_CRYPT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
995 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
996 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
997 char_u buf[4];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
998 int n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
999
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1000 undo_read(bi, buf, (size_t)4);
6216
f1ba154c3a12 updated for version 7.4.443
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
1001 n = ((unsigned)buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3];
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1002 return n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1003 }
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
1004 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1005 return get4c(bi->bi_fp);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1006 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1007
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1008 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1009 undo_read_2c(bufinfo_T *bi)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1010 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1011 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1012 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1013 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1014 char_u buf[2];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1015 int n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1016
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1017 undo_read(bi, buf, (size_t)2);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1018 n = (buf[0] << 8) + buf[1];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1019 return n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1020 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1021 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1022 return get2c(bi->bi_fp);
2266
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
1023 }
ae2e615a7320 Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents: 2262
diff changeset
1024
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1025 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1026 undo_read_byte(bufinfo_T *bi)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1027 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1028 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1029 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1030 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1031 char_u buf[1];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1032
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1033 undo_read(bi, buf, (size_t)1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1034 return buf[0];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1035 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1036 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1037 return getc(bi->bi_fp);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1038 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1039
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1040 static time_t
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1041 undo_read_time(bufinfo_T *bi)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1042 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1043 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1044 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1045 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1046 char_u buf[8];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1047 time_t n = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1048 int i;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1049
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1050 undo_read(bi, buf, (size_t)8);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1051 for (i = 0; i < 8; ++i)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1052 n = (n << 8) + buf[i];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1053 return n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1054 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1055 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1056 return get8ctime(bi->bi_fp);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1057 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1058
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1059 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1060 * Read "buffer[size]" from the undo file.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1061 * Return OK or FAIL.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1062 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1063 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1064 undo_read(bufinfo_T *bi, char_u *buffer, size_t size)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1065 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1066 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1067 if (bi->bi_buffer != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1068 {
6132
0242c27e40e1 updated for version 7.4.404
Bram Moolenaar <bram@vim.org>
parents: 6128
diff changeset
1069 int size_todo = (int)size;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1070 char_u *p = buffer;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1071
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1072 while (size_todo > 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1073 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1074 size_t n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1075
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1076 if (bi->bi_used >= bi->bi_avail)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1077 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1078 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1079 if (n <= 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1080 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1081 /* Error may be checked for only later. Fill with zeros,
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1082 * so that the reader won't use garbage. */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1083 vim_memset(p, 0, size_todo);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1084 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1085 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1086 bi->bi_avail = n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1087 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1088 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1089 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1090 n = size_todo;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1091 if (n > bi->bi_avail - bi->bi_used)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1092 n = bi->bi_avail - bi->bi_used;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1093 mch_memmove(p, bi->bi_buffer + bi->bi_used, n);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1094 bi->bi_used += n;
6132
0242c27e40e1 updated for version 7.4.404
Bram Moolenaar <bram@vim.org>
parents: 6128
diff changeset
1095 size_todo -= (int)n;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1096 p += n;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1097 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1098 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1099 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1100 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1101 if (fread(buffer, (size_t)size, 1, bi->bi_fp) != 1)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1102 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1103 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1104 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1105
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1106 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1107 * Read a string of length "len" from "bi->bi_fd".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1108 * "len" can be zero to allocate an empty line.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1109 * Decrypt the bytes if needed.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1110 * Append a NUL.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1111 * Returns a pointer to allocated memory or NULL for failure.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1112 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1113 static char_u *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1114 read_string_decrypt(bufinfo_T *bi, int len)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1115 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1116 char_u *ptr = alloc((unsigned)len + 1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1117
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1118 if (ptr != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1119 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1120 if (len > 0 && undo_read(bi, ptr, len) == FAIL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1121 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1122 vim_free(ptr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1123 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1124 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1125 ptr[len] = NUL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1126 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1127 if (bi->bi_state != NULL && bi->bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1128 crypt_decode_inplace(bi->bi_state, ptr, len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1129 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1130 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1131 return ptr;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1132 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1133
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1134 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1135 * Writes the (not encrypted) header and initializes encryption if needed.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1136 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1137 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1138 serialize_header(bufinfo_T *bi, char_u *hash)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1139 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1140 int len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1141 buf_T *buf = bi->bi_buf;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1142 FILE *fp = bi->bi_fp;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1143 char_u time_buf[8];
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1144
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1145 /* Start writing, first the magic marker and undo info version. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1146 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1147 return FAIL;
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1148
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1149 /* If the buffer is encrypted then all text bytes following will be
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1150 * encrypted. Numbers and other info is not crypted. */
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1151 #ifdef FEAT_CRYPT
2410
8f6106dd3d12 Fix: editing a not encrypted file after a crypted file messed up reading the
Bram Moolenaar <bram@vim.org>
parents: 2394
diff changeset
1152 if (*buf->b_p_key != NUL)
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1153 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1154 char_u *header;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1155 int header_len;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1156
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1157 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1158 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf),
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1159 buf->b_p_key, &header, &header_len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1160 if (bi->bi_state == NULL)
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1161 return FAIL;
2245
4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents: 2242
diff changeset
1162 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp);
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1163 vim_free(header);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1164 if (len != 1)
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
1165 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1166 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1167 bi->bi_state = NULL;
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1168 return FAIL;
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
1169 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1170
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1171 if (crypt_whole_undofile(crypt_get_method_nr(buf)))
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1172 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1173 bi->bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1174 if (bi->bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1175 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1176 crypt_free_state(bi->bi_state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1177 bi->bi_state = NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1178 return FAIL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1179 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1180 bi->bi_used = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1181 }
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1182 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1183 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1184 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1185 undo_write_bytes(bi, (long_u)UF_VERSION, 2);
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1186
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1187
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1188 /* Write a hash of the buffer text, so that we can verify it is still the
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1189 * same when reading the buffer text. */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1190 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1191 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1192
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1193 /* buffer-specific data */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1194 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1195 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1196 undo_write_bytes(bi, (long_u)len, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1197 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr, (size_t)len) == FAIL)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1198 return FAIL;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1199 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1200 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1201
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1202 /* Undo structures header data */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1203 put_header_ptr(bi, buf->b_u_oldhead);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1204 put_header_ptr(bi, buf->b_u_newhead);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1205 put_header_ptr(bi, buf->b_u_curhead);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1206
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1207 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1208 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1209 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1210 time_to_bytes(buf->b_u_time_cur, time_buf);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1211 undo_write(bi, time_buf, 8);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1212
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1213 /* Optional fields. */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1214 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1215 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1216 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1217
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1218 undo_write_bytes(bi, 0, 1); /* end marker */
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1219
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1220 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1221 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1222
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1223 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1224 serialize_uhp(bufinfo_T *bi, u_header_T *uhp)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1225 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1226 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1227 u_entry_T *uep;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1228 char_u time_buf[8];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1229
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1230 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1231 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1232
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1233 put_header_ptr(bi, uhp->uh_next.ptr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1234 put_header_ptr(bi, uhp->uh_prev.ptr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1235 put_header_ptr(bi, uhp->uh_alt_next.ptr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1236 put_header_ptr(bi, uhp->uh_alt_prev.ptr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1237 undo_write_bytes(bi, uhp->uh_seq, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1238 serialize_pos(bi, uhp->uh_cursor);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1239 #ifdef FEAT_VIRTUALEDIT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1240 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1241 #else
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1242 undo_write_bytes(bi, (long_u)0, 4);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1243 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1244 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1245 /* Assume NMARKS will stay the same. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1246 for (i = 0; i < NMARKS; ++i)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1247 serialize_pos(bi, uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1248 serialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1249 time_to_bytes(uhp->uh_time, time_buf);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1250 undo_write(bi, time_buf, 8);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1251
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1252 /* Optional fields. */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1253 undo_write_bytes(bi, 4, 1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1254 undo_write_bytes(bi, UHP_SAVE_NR, 1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1255 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1256
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1257 undo_write_bytes(bi, 0, 1); /* end marker */
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1258
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1259 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1260 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1261 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1262 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1263 if (serialize_uep(bi, uep) == FAIL)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1264 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1265 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1266 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1267 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1268 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1269
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1270 static u_header_T *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1271 unserialize_uhp(bufinfo_T *bi, char_u *file_name)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1272 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1273 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1274 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1275 u_entry_T *uep, *last_uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1276 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1277 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1278
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1279 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1280 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1281 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1282 vim_memset(uhp, 0, sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1283 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1284 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1285 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1286 uhp->uh_next.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1287 uhp->uh_prev.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1288 uhp->uh_alt_next.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1289 uhp->uh_alt_prev.seq = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1290 uhp->uh_seq = undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1291 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1292 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1293 corruption_error("uh_seq", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1294 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1295 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1296 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1297 unserialize_pos(bi, &uhp->uh_cursor);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1298 #ifdef FEAT_VIRTUALEDIT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1299 uhp->uh_cursor_vcol = undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1300 #else
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1301 (void)undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1302 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1303 uhp->uh_flags = undo_read_2c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1304 for (i = 0; i < NMARKS; ++i)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1305 unserialize_pos(bi, &uhp->uh_namedm[i]);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1306 unserialize_visualinfo(bi, &uhp->uh_visual);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1307 uhp->uh_time = undo_read_time(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1308
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1309 /* Optional fields. */
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1310 for (;;)
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1311 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1312 int len = undo_read_byte(bi);
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1313 int what;
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1314
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1315 if (len == 0)
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1316 break;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1317 what = undo_read_byte(bi);
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1318 switch (what)
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1319 {
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1320 case UHP_SAVE_NR:
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1321 uhp->uh_save_nr = undo_read_4c(bi);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1322 break;
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1323 default:
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1324 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1325 while (--len >= 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1326 (void)undo_read_byte(bi);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1327 }
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1328 }
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1329
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1330 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1331 last_uep = NULL;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1332 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1333 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1334 error = FALSE;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1335 uep = unserialize_uep(bi, &error, file_name);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1336 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1337 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1338 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1339 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1340 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1341 if (uep == NULL || error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1342 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1343 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1344 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1345 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1346 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1347 if (c != UF_ENTRY_END_MAGIC)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1348 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1349 corruption_error("entry end", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1350 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1351 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1352 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1353
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1354 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1355 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1356
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1357 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1358 * Serialize "uep".
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1359 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1360 static int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1361 serialize_uep(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1362 bufinfo_T *bi,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1363 u_entry_T *uep)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1364 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1365 int i;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1366 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1367
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1368 undo_write_bytes(bi, (long_u)uep->ue_top, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1369 undo_write_bytes(bi, (long_u)uep->ue_bot, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1370 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1371 undo_write_bytes(bi, (long_u)uep->ue_size, 4);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1372 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1373 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1374 len = STRLEN(uep->ue_array[i]);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1375 if (undo_write_bytes(bi, (long_u)len, 4) == FAIL)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1376 return FAIL;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1377 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1378 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1379 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1380 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1381 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1382
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1383 static u_entry_T *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1384 unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1385 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1386 int i;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1387 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1388 char_u **array;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1389 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1390 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1391
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1392 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1393 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1394 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1395 vim_memset(uep, 0, sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1396 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1397 uep->ue_magic = UE_MAGIC;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1398 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1399 uep->ue_top = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1400 uep->ue_bot = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1401 uep->ue_lcount = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1402 uep->ue_size = undo_read_4c(bi);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1403 if (uep->ue_size > 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1404 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1405 array = (char_u **)U_ALLOC_LINE(sizeof(char_u *) * uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1406 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1407 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1408 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1409 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1410 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1411 vim_memset(array, 0, sizeof(char_u *) * uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1412 }
2232
2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents: 2231
diff changeset
1413 else
2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents: 2231
diff changeset
1414 array = NULL;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1415 uep->ue_array = array;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1416
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1417 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1418 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1419 line_len = undo_read_4c(bi);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1420 if (line_len >= 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1421 line = read_string_decrypt(bi, line_len);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1422 else
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1423 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1424 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1425 corruption_error("line length", file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1426 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1427 if (line == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1428 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1429 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1430 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1431 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1432 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1433 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1434 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1435 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1436
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1437 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1438 * Serialize "pos".
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1439 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1440 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1441 serialize_pos(bufinfo_T *bi, pos_T pos)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1442 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1443 undo_write_bytes(bi, (long_u)pos.lnum, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1444 undo_write_bytes(bi, (long_u)pos.col, 4);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1445 #ifdef FEAT_VIRTUALEDIT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1446 undo_write_bytes(bi, (long_u)pos.coladd, 4);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1447 #else
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1448 undo_write_bytes(bi, (long_u)0, 4);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1449 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1450 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1451
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1452 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1453 * Unserialize the pos_T at the current position.
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1454 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1455 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1456 unserialize_pos(bufinfo_T *bi, pos_T *pos)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1457 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1458 pos->lnum = undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1459 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1460 pos->lnum = 0;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1461 pos->col = undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1462 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1463 pos->col = 0;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1464 #ifdef FEAT_VIRTUALEDIT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1465 pos->coladd = undo_read_4c(bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1466 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1467 pos->coladd = 0;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1468 #else
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1469 (void)undo_read_4c(bi);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1470 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1471 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1472
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1473 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1474 * Serialize "info".
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1475 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1476 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1477 serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1478 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1479 serialize_pos(bi, info->vi_start);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1480 serialize_pos(bi, info->vi_end);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1481 undo_write_bytes(bi, (long_u)info->vi_mode, 4);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1482 undo_write_bytes(bi, (long_u)info->vi_curswant, 4);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1483 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1484
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1485 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1486 * Unserialize the visualinfo_T at the current position.
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1487 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1488 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1489 unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1490 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1491 unserialize_pos(bi, &info->vi_start);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1492 unserialize_pos(bi, &info->vi_end);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1493 info->vi_mode = undo_read_4c(bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1494 info->vi_curswant = undo_read_4c(bi);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1495 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1496
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1497 /*
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1498 * Write the undo tree in an undo file.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1499 * When "name" is not NULL, use it as the name of the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1500 * Otherwise use buf->b_ffname to generate the undo file name.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1501 * "buf" must never be null, buf->b_ffname is used to obtain the original file
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1502 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1503 * "forceit" is TRUE for ":wundo!", FALSE otherwise.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1504 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1505 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1506 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1507 u_write_undo(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1508 char_u *name,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1509 int forceit,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1510 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1511 char_u *hash)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1512 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1513 u_header_T *uhp;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1514 char_u *file_name;
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1515 int mark;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1516 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1517 int headers_written = 0;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1518 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1519 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1520 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1521 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1522 int write_ok = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1523 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1524 int st_old_valid = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1525 struct stat st_old;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1526 struct stat st_new;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1527 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1528 bufinfo_T bi;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1529
6128
3aa37ad2c4ed updated for version 7.4.402
Bram Moolenaar <bram@vim.org>
parents: 6122
diff changeset
1530 vim_memset(&bi, 0, sizeof(bi));
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1531
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1532 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1533 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1534 file_name = u_get_undo_file_name(buf->b_ffname, FALSE);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1535 if (file_name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1536 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1537 if (p_verbose > 0)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1538 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1539 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1540 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1541 _("Cannot write undo file in any directory in 'undodir'"));
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1542 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1543 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1544 return;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1545 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1546 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1547 else
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1548 file_name = name;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1549
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1550 /*
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1551 * Decide about the permission to use for the undo file. If the buffer
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1552 * has a name use the permission of the original file. Otherwise only
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1553 * allow the user to access the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1554 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1555 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1556 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1557 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1558 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1559 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1560 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1561 perm = st_old.st_mode;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1562 st_old_valid = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1563 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1564 #else
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1565 perm = mch_getperm(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1566 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1567 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1568 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1569 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1570
6771
63b2bc619d5a patch 7.4.707
Bram Moolenaar <bram@vim.org>
parents: 6616
diff changeset
1571 /* strip any s-bit and executable bit */
63b2bc619d5a patch 7.4.707
Bram Moolenaar <bram@vim.org>
parents: 6616
diff changeset
1572 perm = perm & 0666;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1573
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1574 /* If the undo file already exists, verify that it actually is an undo
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1575 * file, and delete it. */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1576 if (mch_getperm(file_name) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1577 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1578 if (name == NULL || !forceit)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1579 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1580 /* Check we can read it and it's an undo file. */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1581 fd = mch_open((char *)file_name, O_RDONLY|O_EXTRA, 0);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1582 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1583 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1584 if (name != NULL || p_verbose > 0)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1585 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1586 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1587 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1588 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1589 _("Will not overwrite with undo file, cannot read: %s"),
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1590 file_name);
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1591 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1592 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1593 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1594 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1595 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1596 else
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1597 {
2271
2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents: 2267
diff changeset
1598 char_u mbuf[UF_START_MAGIC_LEN];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1599 int len;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1600
2664
033e7b49356c updated for version 7.3.083
Bram Moolenaar <bram@vim.org>
parents: 2627
diff changeset
1601 len = read_eintr(fd, mbuf, UF_START_MAGIC_LEN);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1602 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1603 if (len < UF_START_MAGIC_LEN
2271
2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents: 2267
diff changeset
1604 || memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1605 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1606 if (name != NULL || p_verbose > 0)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1607 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1608 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1609 verbose_enter();
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1610 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1611 _("Will not overwrite, this is not an undo file: %s"),
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1612 file_name);
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1613 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1614 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1615 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1616 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1617 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1618 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1619 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1620 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1621 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1622
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1623 /* If there is no undo information at all, quit here after deleting any
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1624 * existing undo file. */
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1625 if (buf->b_u_numhead == 0 && buf->b_u_line_ptr == NULL)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1626 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1627 if (p_verbose > 0)
2262
771f21e35ec5 Minor typo and docs update.
Bram Moolenaar <bram@vim.org>
parents: 2251
diff changeset
1628 verb_msg((char_u *)_("Skipping undo file write, nothing to undo"));
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1629 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1630 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1631
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1632 fd = mch_open((char *)file_name,
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1633 O_CREAT|O_EXTRA|O_WRONLY|O_EXCL|O_NOFOLLOW, perm);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1634 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1635 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1636 EMSG2(_(e_not_open), file_name);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1637 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1638 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1639 (void)mch_setperm(file_name, perm);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1640 if (p_verbose > 0)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1641 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1642 verbose_enter();
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1643 smsg((char_u *)_("Writing undo file: %s"), file_name);
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1644 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1645 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1646
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1647 #ifdef U_DEBUG
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1648 /* Check there is no problem in undo info before writing. */
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1649 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1650 #endif
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1651
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1652 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1653 /*
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1654 * Try to set the group of the undo file same as the original file. If
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1655 * this fails, set the protection bits for the group same as the
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1656 * protection bits for others.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1657 */
2367
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents: 2348
diff changeset
1658 if (st_old_valid
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents: 2348
diff changeset
1659 && mch_stat((char *)file_name, &st_new) >= 0
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents: 2348
diff changeset
1660 && st_new.st_gid != st_old.st_gid
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1661 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
2367
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents: 2348
diff changeset
1662 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1663 # endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1664 )
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1665 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3));
5788
410ef4f1a3d2 updated for version 7.4.238
Bram Moolenaar <bram@vim.org>
parents: 5735
diff changeset
1666 # if defined(HAVE_SELINUX) || defined(HAVE_SMACK)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1667 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1668 mch_copy_sec(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1669 # endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1670 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1671
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1672 fp = fdopen(fd, "w");
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1673 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1674 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1675 EMSG2(_(e_not_open), file_name);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1676 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1677 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1678 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1679 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1680
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1681 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1682 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1683
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1684 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1685 * Write the header. Initializes encryption, if enabled.
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1686 */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1687 bi.bi_buf = buf;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1688 bi.bi_fp = fp;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1689 if (serialize_header(&bi, hash) == FAIL)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1690 goto write_error;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1691
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1692 /*
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1693 * Iteratively serialize UHPs and their UEPs from the top down.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1694 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1695 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1696 uhp = buf->b_u_oldhead;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1697 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1698 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1699 /* Serialize current UHP if we haven't seen it */
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1700 if (uhp->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1701 {
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1702 uhp->uh_walk = mark;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1703 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1704 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1705 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1706 if (serialize_uhp(&bi, uhp) == FAIL)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1707 goto write_error;
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1708 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1709
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1710 /* Now walk through the tree - algorithm from undo_time(). */
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1711 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1712 uhp = uhp->uh_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1713 else if (uhp->uh_alt_next.ptr != NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
1714 && uhp->uh_alt_next.ptr->uh_walk != mark)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1715 uhp = uhp->uh_alt_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1716 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
1717 && uhp->uh_next.ptr->uh_walk != mark)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1718 uhp = uhp->uh_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1719 else if (uhp->uh_alt_prev.ptr != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1720 uhp = uhp->uh_alt_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1721 else
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1722 uhp = uhp->uh_next.ptr;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1723 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1724
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1725 if (undo_write_bytes(&bi, (long_u)UF_HEADER_END_MAGIC, 2) == OK)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1726 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1727 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1728 if (headers_written != buf->b_u_numhead)
4827
60301d4d1682 updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents: 4303
diff changeset
1729 {
60301d4d1682 updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents: 4303
diff changeset
1730 EMSGN("Written %ld headers, ...", headers_written);
60301d4d1682 updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents: 4303
diff changeset
1731 EMSGN("... but numhead is %ld", buf->b_u_numhead);
60301d4d1682 updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents: 4303
diff changeset
1732 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1733 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1734
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1735 #ifdef FEAT_CRYPT
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1736 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1737 write_ok = FALSE;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1738 #endif
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1739
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1740 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1741 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1742 if (!write_ok)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1743 EMSG2(_("E829: write error in undo file: %s"), file_name);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1744
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1745 #if defined(MACOS_CLASSIC) || defined(WIN3264)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1746 /* Copy file attributes; for systems where this can only be done after
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1747 * closing the file. */
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1748 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1749 (void)mch_copy_file_attribute(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1750 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1751 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1752 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1753 {
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1754 vim_acl_T acl;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1755
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1756 /* For systems that support ACL: get the ACL from the original file. */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1757 acl = mch_get_acl(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1758 mch_set_acl(file_name, acl);
3545
74d51b51f3e6 updated for version 7.3.533
Bram Moolenaar <bram@vim.org>
parents: 3194
diff changeset
1759 mch_free_acl(acl);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1760 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1761 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1762
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1763 theend:
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
1764 #ifdef FEAT_CRYPT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1765 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1766 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1767 vim_free(bi.bi_buffer);
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
1768 #endif
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1769 if (file_name != name)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1770 vim_free(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1771 }
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1772
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1773 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1774 * Load the undo tree from an undo file.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1775 * If "name" is not NULL use it as the undo file name. This also means being
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1776 * a bit more verbose.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1777 * Otherwise use curbuf->b_ffname to generate the undo file name.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1778 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1779 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1780 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
1781 u_read_undo(char_u *name, char_u *hash, char_u *orig_name)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1782 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1783 char_u *file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1784 FILE *fp;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1785 long version, str_len;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1786 char_u *line_ptr = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1787 linenr_T line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1788 colnr_T line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1789 linenr_T line_count;
2217
120502692d82 Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents: 2215
diff changeset
1790 int num_head = 0;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1791 long old_header_seq, new_header_seq, cur_header_seq;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1792 long seq_last, seq_cur;
2282
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
1793 long last_save_nr = 0;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1794 short old_idx = -1, new_idx = -1, cur_idx = -1;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1795 long num_read_uhps = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1796 time_t seq_time;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1797 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1798 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1799 u_header_T *uhp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1800 u_header_T **uhp_table = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1801 char_u read_hash[UNDO_HASH_SIZE];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1802 char_u magic_buf[UF_START_MAGIC_LEN];
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1803 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1804 int *uhp_table_used;
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1805 #endif
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1806 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1807 struct stat st_orig;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1808 struct stat st_undo;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1809 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1810 bufinfo_T bi;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1811
6128
3aa37ad2c4ed updated for version 7.4.402
Bram Moolenaar <bram@vim.org>
parents: 6122
diff changeset
1812 vim_memset(&bi, 0, sizeof(bi));
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1813 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1814 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1815 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1816 if (file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1817 return;
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1818
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1819 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1820 /* For safety we only read an undo file if the owner is equal to the
5343
00d61a47df66 updated for version 7.4.024
Bram Moolenaar <bram@vim.org>
parents: 4827
diff changeset
1821 * owner of the text file or equal to the current user. */
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1822 if (mch_stat((char *)orig_name, &st_orig) >= 0
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1823 && mch_stat((char *)file_name, &st_undo) >= 0
5343
00d61a47df66 updated for version 7.4.024
Bram Moolenaar <bram@vim.org>
parents: 4827
diff changeset
1824 && st_orig.st_uid != st_undo.st_uid
00d61a47df66 updated for version 7.4.024
Bram Moolenaar <bram@vim.org>
parents: 4827
diff changeset
1825 && st_undo.st_uid != getuid())
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1826 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1827 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1828 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1829 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1830 smsg((char_u *)_("Not reading undo file, owner differs: %s"),
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1831 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1832 verbose_leave();
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1833 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1834 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1835 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1836 #endif
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1837 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1838 else
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1839 file_name = name;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1840
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1841 if (p_verbose > 0)
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1842 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1843 verbose_enter();
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1844 smsg((char_u *)_("Reading undo file: %s"), file_name);
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1845 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1846 }
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1847
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1848 fp = mch_fopen((char *)file_name, "r");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1849 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1850 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1851 if (name != NULL || p_verbose > 0)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1852 EMSG2(_("E822: Cannot open undo file for reading: %s"), file_name);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1853 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1854 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1855 bi.bi_buf = curbuf;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1856 bi.bi_fp = fp;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1857
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1858 /*
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1859 * Read the undo file header.
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1860 */
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1861 if (fread(magic_buf, UF_START_MAGIC_LEN, 1, fp) != 1
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1862 || memcmp(magic_buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1863 {
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1864 EMSG2(_("E823: Not an undo file: %s"), file_name);
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1865 goto error;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1866 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1867 version = get2c(fp);
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1868 if (version == UF_VERSION_CRYPT)
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1869 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1870 #ifdef FEAT_CRYPT
2251
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1871 if (*curbuf->b_p_key == NUL)
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1872 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1873 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"),
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1874 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1875 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents: 2245
diff changeset
1876 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1877 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1878 if (bi.bi_state == NULL)
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1879 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1880 EMSG2(_("E826: Undo file decryption failed: %s"), file_name);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1881 goto error;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1882 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1883 if (crypt_whole_undofile(bi.bi_state->method_nr))
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1884 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1885 bi.bi_buffer = alloc(CRYPT_BUF_SIZE);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1886 if (bi.bi_buffer == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1887 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1888 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1889 bi.bi_state = NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1890 goto error;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1891 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1892 bi.bi_avail = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1893 bi.bi_used = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1894 }
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1895 #else
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1896 EMSG2(_("E827: Undo file is encrypted: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1897 goto error;
2239
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1898 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents: 2238
diff changeset
1899 }
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1900 else if (version != UF_VERSION)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1901 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1902 EMSG2(_("E824: Incompatible undo file: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1903 goto error;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1904 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1905
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1906 if (undo_read(&bi, read_hash, (size_t)UNDO_HASH_SIZE) == FAIL)
2229
d45902a5c61c Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents: 2223
diff changeset
1907 {
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
1908 corruption_error("hash", file_name);
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1909 goto error;
2229
d45902a5c61c Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents: 2223
diff changeset
1910 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1911 line_count = (linenr_T)undo_read_4c(&bi);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1912 if (memcmp(hash, read_hash, UNDO_HASH_SIZE) != 0
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1913 || line_count != curbuf->b_ml.ml_line_count)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1914 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1915 if (p_verbose > 0 || name != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1916 {
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1917 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1918 verbose_enter();
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1919 give_warning((char_u *)
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1920 _("File contents changed, cannot use undo info"), TRUE);
2235
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1921 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents: 2234
diff changeset
1922 verbose_leave();
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1923 }
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1924 goto error;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1925 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1926
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1927 /* Read undo data for "U" command. */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1928 str_len = undo_read_4c(&bi);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1929 if (str_len < 0)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
1930 goto error;
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1931 if (str_len > 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1932 line_ptr = read_string_decrypt(&bi, str_len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1933 line_lnum = (linenr_T)undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1934 line_colnr = (colnr_T)undo_read_4c(&bi);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1935 if (line_lnum < 0 || line_colnr < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1936 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1937 corruption_error("line lnum/col", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1938 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1939 }
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1940
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1941 /* Begin general undo data */
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1942 old_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1943 new_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1944 cur_header_seq = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1945 num_head = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1946 seq_last = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1947 seq_cur = undo_read_4c(&bi);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1948 seq_time = undo_read_time(&bi);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1949
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1950 /* Optional header fields. */
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1951 for (;;)
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1952 {
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1953 int len = undo_read_byte(&bi);
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1954 int what;
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1955
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1956 if (len == 0 || len == EOF)
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1957 break;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1958 what = undo_read_byte(&bi);
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1959 switch (what)
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1960 {
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1961 case UF_LAST_SAVE_NR:
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1962 last_save_nr = undo_read_4c(&bi);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1963 break;
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1964 default:
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1965 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1966 while (--len >= 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1967 (void)undo_read_byte(&bi);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1968 }
2342
f6540762173d Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents: 2311
diff changeset
1969 }
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
1970
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1971 /* uhp_table will store the freshly created undo headers we allocate
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1972 * until we insert them into curbuf. The table remains sorted by the
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1973 * sequence numbers of the headers.
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1974 * When there are no headers uhp_table is NULL. */
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1975 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1976 {
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1977 uhp_table = (u_header_T **)U_ALLOC_LINE(
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1978 num_head * sizeof(u_header_T *));
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1979 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1980 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
1981 }
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1982
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1983 while ((c = undo_read_2c(&bi)) == UF_HEADER_MAGIC)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
1984 {
2223
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
1985 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
1986 {
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1987 corruption_error("num_head too small", file_name);
2223
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
1988 goto error;
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
1989 }
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
1990
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
1991 uhp = unserialize_uhp(&bi, file_name);
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1992 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
1993 goto error;
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1994 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1995 }
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1996
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1997 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1998 {
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
1999 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
2000 goto error;
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2001 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2002 if (c != UF_HEADER_END_MAGIC)
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2003 {
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2004 corruption_error("end marker", file_name);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2005 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2006 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2007
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2008 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2009 uhp_table_used = (int *)alloc_clear(
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2010 (unsigned)(sizeof(int) * num_head + 1));
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2011 # define SET_FLAG(j) ++uhp_table_used[j]
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2012 #else
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2013 # define SET_FLAG(j)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2014 #endif
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2015
2238
3d0a7beb0d75 Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents: 2236
diff changeset
2016 /* We have put all of the headers into a table. Now we iterate through the
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2017 * table and swizzle each sequence number we have stored in uh_*_seq into
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2018 * a pointer corresponding to the header with that sequence number. */
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2019 for (i = 0; i < num_head; i++)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2020 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2021 uhp = uhp_table[i];
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2022 if (uhp == NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2023 continue;
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2024 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2025 if (uhp_table[j] != NULL && i != j
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2026 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2027 {
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
2028 corruption_error("duplicate uh_seq", file_name);
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2029 goto error;
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
2030 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2031 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2032 if (uhp_table[j] != NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2033 && uhp_table[j]->uh_seq == uhp->uh_next.seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2034 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2035 uhp->uh_next.ptr = uhp_table[j];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2036 SET_FLAG(j);
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2037 break;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2038 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2039 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2040 if (uhp_table[j] != NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2041 && uhp_table[j]->uh_seq == uhp->uh_prev.seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2042 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2043 uhp->uh_prev.ptr = uhp_table[j];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2044 SET_FLAG(j);
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2045 break;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2046 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2047 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2048 if (uhp_table[j] != NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2049 && uhp_table[j]->uh_seq == uhp->uh_alt_next.seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2050 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2051 uhp->uh_alt_next.ptr = uhp_table[j];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2052 SET_FLAG(j);
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2053 break;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2054 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2055 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2056 if (uhp_table[j] != NULL
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2057 && uhp_table[j]->uh_seq == uhp->uh_alt_prev.seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2058 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2059 uhp->uh_alt_prev.ptr = uhp_table[j];
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2060 SET_FLAG(j);
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2061 break;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2062 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2063 if (old_header_seq > 0 && old_idx < 0 && uhp->uh_seq == old_header_seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2064 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2065 old_idx = i;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2066 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2067 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2068 if (new_header_seq > 0 && new_idx < 0 && uhp->uh_seq == new_header_seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2069 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2070 new_idx = i;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2071 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2072 }
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2073 if (cur_header_seq > 0 && cur_idx < 0 && uhp->uh_seq == cur_header_seq)
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2074 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2075 cur_idx = i;
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2076 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2077 }
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2078 }
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2079
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2080 /* Now that we have read the undo info successfully, free the current undo
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2081 * info and use the info from the file. */
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2082 u_blockfree(curbuf);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2083 curbuf->b_u_oldhead = old_idx < 0 ? NULL : uhp_table[old_idx];
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2084 curbuf->b_u_newhead = new_idx < 0 ? NULL : uhp_table[new_idx];
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2085 curbuf->b_u_curhead = cur_idx < 0 ? NULL : uhp_table[cur_idx];
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2086 curbuf->b_u_line_ptr = line_ptr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2087 curbuf->b_u_line_lnum = line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2088 curbuf->b_u_line_colnr = line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2089 curbuf->b_u_numhead = num_head;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2090 curbuf->b_u_seq_last = seq_last;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2091 curbuf->b_u_seq_cur = seq_cur;
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
2092 curbuf->b_u_time_cur = seq_time;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2093 curbuf->b_u_save_nr_last = last_save_nr;
2627
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
2094 curbuf->b_u_save_nr_cur = last_save_nr;
2233
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
2095
43cad213cb7f A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents: 2232
diff changeset
2096 curbuf->b_u_synced = TRUE;
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
2097 vim_free(uhp_table);
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2098
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2099 #ifdef U_DEBUG
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2100 for (i = 0; i < num_head; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2101 if (uhp_table_used[i] == 0)
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2102 EMSGN("uhp_table entry %ld not used, leaking memory", i);
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2103 vim_free(uhp_table_used);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2104 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2105 #endif
2231
aa6412cab544 Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents: 2230
diff changeset
2106
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2107 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2108 smsg((char_u *)_("Finished reading undo file %s"), file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2109 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2110
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2111 error:
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
2112 vim_free(line_ptr);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2113 if (uhp_table != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2114 {
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2115 for (i = 0; i < num_read_uhps; i++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2116 if (uhp_table[i] != NULL)
2223
81b83a19e127 More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents: 2222
diff changeset
2117 u_free_uhp(uhp_table[i]);
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2118 vim_free(uhp_table);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2119 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2120
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2121 theend:
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
2122 #ifdef FEAT_CRYPT
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
2123 if (bi.bi_state != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
2124 crypt_free_state(bi.bi_state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents: 5788
diff changeset
2125 vim_free(bi.bi_buffer);
2267
c08f91142c41 Crypt the swapfile.
Bram Moolenaar <bram@vim.org>
parents: 2266
diff changeset
2126 #endif
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2127 if (fp != NULL)
2311
ccda151dde4e Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents: 2289
diff changeset
2128 fclose(fp);
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2129 if (file_name != name)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2130 vim_free(file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2131 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2132 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2133
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2134 #endif /* FEAT_PERSISTENT_UNDO */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2135
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2136
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2137 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2138 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2139 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2140 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2141 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2142 u_undo(int count)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2143 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2144 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2145 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2146 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2147 * be compatible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2148 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2149 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2150 {
825
6675076019ae updated for version 7.0d
vimboss
parents: 810
diff changeset
2151 u_sync(TRUE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2152 count = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2153 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2154
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2155 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2156 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2157 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2158 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2159 u_doit(count);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2160 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2161
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2162 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2163 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2164 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2165 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2166 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2167 u_redo(int count)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2168 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2169 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2170 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2171 u_doit(count);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2172 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2173
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2174 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2175 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2176 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2177 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2178 u_doit(int startcount)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2179 {
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2180 int count = startcount;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2181
632
b6632d553df3 updated for version 7.0182
vimboss
parents: 481
diff changeset
2182 if (!undo_allowed())
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2183 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2184
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2185 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2186 u_oldcount = 0;
179
7fd70926e2e1 updated for version 7.0055
vimboss
parents: 168
diff changeset
2187 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055
vimboss
parents: 168
diff changeset
2188 u_oldcount = -1;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2189 while (count--)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2190 {
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2191 /* Do the change warning now, so that it triggers FileChangedRO when
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2192 * needed. This may cause the file to be reloaded, that must happen
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2193 * before we do anything, because it may change curbuf->b_u_curhead
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2194 * and more. */
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2195 change_warning(0);
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2196
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2197 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2198 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2199 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2200 curbuf->b_u_curhead = curbuf->b_u_newhead;
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
2201 else if (get_undolevel() > 0) /* multi level undo */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2202 /* get next undo */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2203 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2204 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2205 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2206 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2207 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2208 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2209 beep_flush();
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2210 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2211 {
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2212 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2213 return;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2214 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2215 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2216 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2217
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2218 u_undoredo(TRUE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2219 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2220 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2221 {
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
2222 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2223 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2224 beep_flush(); /* nothing to redo */
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2225 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2226 {
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2227 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2228 return;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2229 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2230 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2231 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2232
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2233 u_undoredo(FALSE);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2234
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2235 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2236 * redoable changes. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2237 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2238 curbuf->b_u_newhead = curbuf->b_u_curhead;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2239 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2240 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2241 }
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2242 u_undo_end(undo_undoes, FALSE);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2243 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2244
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2245 /*
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2246 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2247 * When "step" is negative go back in time, otherwise goes forward in time.
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2248 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2249 * seconds.
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2250 * When "file" is TRUE use "step" as a number of file writes.
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2251 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2252 * "sec" must be FALSE then.
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2253 */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2254 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2255 undo_time(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2256 long step,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2257 int sec,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2258 int file,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2259 int absolute)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2260 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2261 long target;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2262 long closest;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2263 long closest_start;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2264 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2265 long val;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2266 u_header_T *uhp;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2267 u_header_T *last;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2268 int mark;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2269 int nomark;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2270 int round;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2271 int dosec = sec;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2272 int dofile = file;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2273 int above = FALSE;
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2274 int did_undo = TRUE;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2275
766
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
2276 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
2277 if (curbuf->b_u_synced == FALSE)
825
6675076019ae updated for version 7.0d
vimboss
parents: 810
diff changeset
2278 u_sync(TRUE);
766
f0d0d3d3a1e2 updated for version 7.0225
vimboss
parents: 758
diff changeset
2279
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2280 u_newcount = 0;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2281 u_oldcount = 0;
179
7fd70926e2e1 updated for version 7.0055
vimboss
parents: 168
diff changeset
2282 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2283 u_oldcount = -1;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2284
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2285 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2286 * Init "closest" to a value we can't reach. */
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2287 if (absolute)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2288 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2289 target = step;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2290 closest = -1;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2291 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2292 else
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2293 {
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2294 /* When doing computations with time_t subtract starttime, because
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2295 * time_t converted to a long may result in a wrong number. */
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2296 if (dosec)
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
2297 target = (long)(curbuf->b_u_time_cur - starttime) + step;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2298 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2299 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2300 if (step < 0)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2301 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2302 /* Going back to a previous write. If there were changes after
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2303 * the last write, count that as moving one file-write, so
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2304 * that ":earlier 1f" undoes all changes since the last save. */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2305 uhp = curbuf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2306 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2307 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2308 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2309 uhp = curbuf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2310 if (uhp != NULL && uhp->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2311 /* "uh_save_nr" was set in the last block, that means
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2312 * there were no changes since the last write */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2313 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2314 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2315 /* count the changes since the last write as one step */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2316 target = curbuf->b_u_save_nr_cur + step + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2317 if (target <= 0)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2318 /* Go to before first write: before the oldest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2319 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2320 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2321 }
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2322 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2323 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2324 /* Moving forward to a newer write. */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2325 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2326 if (target > curbuf->b_u_save_nr_last)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2327 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2328 /* Go to after last write: after the latest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2329 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2330 target = curbuf->b_u_seq_last + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2331 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2332 }
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2333 }
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2334 }
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2335 else
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2336 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2337 if (step < 0)
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2338 {
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2339 if (target < 0)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2340 target = 0;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2341 closest = -1;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2342 }
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2343 else
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2344 {
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2345 if (dosec)
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2346 closest = (long)(time(NULL) - starttime + 1);
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2347 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2348 closest = curbuf->b_u_save_nr_last + 2;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2349 else
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2350 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2351 if (target >= closest)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2352 target = closest - 1;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2353 }
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2354 }
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2355 closest_start = closest;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2356 closest_seq = curbuf->b_u_seq_cur;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2357
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2358 /*
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2359 * May do this twice:
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2360 * 1. Search for "target", update "closest" to the best match found.
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2361 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2362 *
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2363 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2364 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2365 */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2366 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2367 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2368 /* Find the path from the current state to where we want to go. The
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2369 * desired state can be anywhere in the undo tree, need to go all over
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2370 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2371 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2372 mark = ++lastmark;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2373 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2374
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2375 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2376 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2377 else
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2378 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2379
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2380 while (uhp != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2381 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2382 uhp->uh_walk = mark;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2383 if (dosec)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2384 val = (long)(uhp->uh_time - starttime);
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2385 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2386 val = uhp->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2387 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2388 val = uhp->uh_seq;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2389
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2390 if (round == 1 && !(dofile && val == 0))
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2391 {
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2392 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2393 * It must be at least in the right direction (checked with
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2394 * "b_u_seq_cur"). When the timestamp is equal find the
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2395 * highest/lowest sequence number. */
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2396 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2397 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2398 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2399 ? (step < 0
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2400 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2401 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2402 : closest == closest_start
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2403 || (val > target
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2404 ? (closest > target
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2405 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2406 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2407 : (closest > target
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2408 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2409 : target - val <= target - closest))))
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2410 {
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2411 closest = val;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2412 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2413 }
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2414 }
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2415
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2416 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2417 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2418 if (target == val && !dosec)
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2419 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2420 target = uhp->uh_seq;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2421 break;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2422 }
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2423
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2424 /* go down in the tree if we haven't been there */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2425 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2426 && uhp->uh_prev.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2427 uhp = uhp->uh_prev.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2428
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2429 /* go to alternate branch if we haven't been there */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2430 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2431 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2432 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2433 uhp = uhp->uh_alt_next.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2434
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2435 /* go up in the tree if we haven't been there and we are at the
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2436 * start of alternate branches */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2437 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2438 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2439 && uhp->uh_next.ptr->uh_walk != mark)
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2440 {
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2441 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2442 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2443 uhp->uh_walk = nomark;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2444 uhp = uhp->uh_next.ptr;
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2445 }
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2446
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2447 else
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2448 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2449 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2450 uhp->uh_walk = nomark;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2451 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2452 uhp = uhp->uh_alt_prev.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2453 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2454 uhp = uhp->uh_next.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2455 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2456 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2457
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2458 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2459 break;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2460
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2461 if (absolute)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2462 {
2214
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents: 2210
diff changeset
2463 EMSGN(_("E830: Undo number %ld not found"), step);
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2464 return;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2465 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2466
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2467 if (closest == closest_start)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2468 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2469 if (step < 0)
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2470 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2471 else
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2472 MSG(_("Already at newest change"));
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2473 return;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2474 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2475
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2476 target = closest_seq;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2477 dosec = FALSE;
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2478 dofile = FALSE;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2479 if (step < 0)
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2480 above = TRUE; /* stop above the header */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2481 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2482
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2483 /* If we found it: Follow the path to go to where we want to be. */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2484 if (uhp != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2485 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2486 /*
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2487 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2488 */
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2489 while (!got_int)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2490 {
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2491 /* Do the change warning now, for the same reason as above. */
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2492 change_warning(0);
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2493
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2494 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2495 if (uhp == NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2496 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2497 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2498 uhp = uhp->uh_next.ptr;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2499 if (uhp == NULL || uhp->uh_walk != mark
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2500 || (uhp->uh_seq == target && !above))
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2501 break;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2502 curbuf->b_u_curhead = uhp;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2503 u_undoredo(TRUE);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2504 uhp->uh_walk = nomark; /* don't go back down here */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2505 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2506
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2507 /*
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2508 * And now go down the tree (redo), branching off where needed.
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2509 */
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2510 while (!got_int)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2511 {
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2512 /* Do the change warning now, for the same reason as above. */
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2513 change_warning(0);
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2514
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2515 uhp = curbuf->b_u_curhead;
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2516 if (uhp == NULL)
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2517 break;
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2518
1056
e6d25347de2c updated for version 7.0-182
vimboss
parents: 944
diff changeset
2519 /* Go back to the first branch with a mark. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2520 while (uhp->uh_alt_prev.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2521 && uhp->uh_alt_prev.ptr->uh_walk == mark)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2522 uhp = uhp->uh_alt_prev.ptr;
1056
e6d25347de2c updated for version 7.0-182
vimboss
parents: 944
diff changeset
2523
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2524 /* Find the last branch with a mark, that's the one. */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2525 last = uhp;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2526 while (last->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2527 && last->uh_alt_next.ptr->uh_walk == mark)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2528 last = last->uh_alt_next.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2529 if (last != uhp)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2530 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2531 /* Make the used branch the first entry in the list of
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2532 * alternatives to make "u" and CTRL-R take this branch. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2533 while (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2534 uhp = uhp->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2535 if (last->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2536 last->uh_alt_next.ptr->uh_alt_prev.ptr =
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2537 last->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2538 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2539 last->uh_alt_prev.ptr = NULL;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2540 last->uh_alt_next.ptr = uhp;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2541 uhp->uh_alt_prev.ptr = last;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2542
2181
f838615313cd updated for version 7.2.441
Bram Moolenaar <bram@vim.org>
parents: 2165
diff changeset
2543 if (curbuf->b_u_oldhead == uhp)
f838615313cd updated for version 7.2.441
Bram Moolenaar <bram@vim.org>
parents: 2165
diff changeset
2544 curbuf->b_u_oldhead = last;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2545 uhp = last;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2546 if (uhp->uh_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2547 uhp->uh_next.ptr->uh_prev.ptr = uhp;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2548 }
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2549 curbuf->b_u_curhead = uhp;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2550
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2551 if (uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2552 break; /* must have reached the target */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2553
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2554 /* Stop when going backwards in time and didn't find the exact
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2555 * header we were looking for. */
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2556 if (uhp->uh_seq == target && above)
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2557 {
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2558 curbuf->b_u_seq_cur = target - 1;
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2559 break;
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2560 }
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2561
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2562 u_undoredo(FALSE);
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2563
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2564 /* Advance "curhead" to below the header we last used. If it
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2565 * becomes NULL then we need to set "newhead" to this leaf. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2566 if (uhp->uh_prev.ptr == NULL)
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2567 curbuf->b_u_newhead = uhp;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2568 curbuf->b_u_curhead = uhp->uh_prev.ptr;
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2569 did_undo = FALSE;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2570
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2571 if (uhp->uh_seq == target) /* found it! */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2572 break;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2573
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2574 uhp = uhp->uh_prev.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2575 if (uhp == NULL || uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2576 {
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2577 /* Need to redo more but can't find it... */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2578 EMSG2(_(e_intern2), "undo_time()");
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2579 break;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2580 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2581 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2582 }
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2583 u_undo_end(did_undo, absolute);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2584 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2585
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2586 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2587 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2588 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2589 * The lines in the file are replaced by the lines in the entry list at
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2590 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2591 * list for the next undo/redo.
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2592 *
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2593 * When "undo" is TRUE we go up in the tree, when FALSE we go down.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2594 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2595 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2596 u_undoredo(int undo)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2597 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2598 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2599 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2600 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2601 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2602 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2603 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2604 long i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2605 u_entry_T *uep, *nuep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2606 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2607 int old_flags;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2608 int new_flags;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2609 pos_T namedm[NMARKS];
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
2610 visualinfo_T visualinfo;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2611 int empty_buffer; /* buffer became empty */
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2612 u_header_T *curhead = curbuf->b_u_curhead;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2613
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2614 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2615 /* Don't want autocommands using the undo structures here, they are
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2616 * invalid till the end. */
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2617 block_autocmds();
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2618 #endif
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2619
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2620 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2621 u_check(FALSE);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2622 #endif
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2623 old_flags = curhead->uh_flags;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2624 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2625 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2626 setpcmark();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2627
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2628 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2629 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2630 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2631 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
2632 visualinfo = curbuf->b_visual;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2633 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2634 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2635 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2636 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2637
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2638 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2639 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2640 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2641 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2642 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2643 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2644 if (top > curbuf->b_ml.ml_line_count || top >= bot
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2645 || bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2646 {
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2647 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2648 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2649 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2650 EMSG(_("E438: u_undo: line numbers wrong"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2651 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2652 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2653 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2654
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2655 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2656 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2657
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2658 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2659 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2660 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2661 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2662 * where it was. */
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2663 lnum = curhead->uh_cursor.lnum;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2664 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2665 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2666 curwin->w_cursor = curhead->uh_cursor;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2667 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2668 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2669 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2670 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2671 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2672 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2673 * line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2674 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2675 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2676 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2677 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2678 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2679 newlnum = top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2680 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2681 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2682 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2683 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2684 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2685 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2686 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2687 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2688 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2689
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2690 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2691
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2692 /* delete the lines between top and bot and save them in newarray */
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
2693 if (oldsize > 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2694 {
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
2695 if ((newarray = (char_u **)U_ALLOC_LINE(
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
2696 sizeof(char_u *) * oldsize)) == NULL)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2697 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2698 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2699 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2700 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2701 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2702 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2703 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2704 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2705 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2706 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2707 uep = nuep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2708 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2709 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2710 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2711 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2712 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2713 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2714 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2715 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2716 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2717 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2718 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2719 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2720 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2721 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2722 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2723 }
414
8ab9c77240d4 updated for version 7.0108
vimboss
parents: 407
diff changeset
2724 else
8ab9c77240d4 updated for version 7.0108
vimboss
parents: 407
diff changeset
2725 newarray = NULL;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2726
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2727 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2728 if (newsize)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2729 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2730 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2731 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2732 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2733 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2734 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2735 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2736 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2737 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2738 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2739 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE);
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
2740 vim_free(uep->ue_array[i]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2741 }
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
2742 vim_free((char_u *)uep->ue_array);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2743 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2744
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2745 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2746 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2747 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2748 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2749 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2750 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2751 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2752 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2753 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2754 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2755
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2756 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2757
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2758 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2759 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2760 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2761 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2762 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2763 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2764 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2765
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2766 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2767 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2768 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2769 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2770 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2771
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2772 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2773 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2774 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2775 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2776 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2777 newlist = uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2778 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2779
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2780 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2781 curhead->uh_flags = new_flags;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2782 if ((old_flags & UH_EMPTYBUF) && bufempty())
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2783 curbuf->b_ml.ml_flags |= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2784 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2785 changed();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2786 else
33
f6033dcbaf31 updated for version 7.0020
vimboss
parents: 7
diff changeset
2787 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020
vimboss
parents: 7
diff changeset
2788 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020
vimboss
parents: 7
diff changeset
2789 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020
vimboss
parents: 7
diff changeset
2790 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2791 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2792
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2793 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2794 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2795 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2796 for (i = 0; i < NMARKS; ++i)
6616
290631797b76 updated for version 7.4.634
Bram Moolenaar <bram@vim.org>
parents: 6216
diff changeset
2797 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2798 if (curhead->uh_namedm[i].lnum != 0)
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2799 curbuf->b_namedm[i] = curhead->uh_namedm[i];
6616
290631797b76 updated for version 7.4.634
Bram Moolenaar <bram@vim.org>
parents: 6216
diff changeset
2800 if (namedm[i].lnum != 0)
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2801 curhead->uh_namedm[i] = namedm[i];
6616
290631797b76 updated for version 7.4.634
Bram Moolenaar <bram@vim.org>
parents: 6216
diff changeset
2802 else
290631797b76 updated for version 7.4.634
Bram Moolenaar <bram@vim.org>
parents: 6216
diff changeset
2803 curhead->uh_namedm[i].lnum = 0;
290631797b76 updated for version 7.4.634
Bram Moolenaar <bram@vim.org>
parents: 6216
diff changeset
2804 }
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2805 if (curhead->uh_visual.vi_start.lnum != 0)
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
2806 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2807 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2808 curhead->uh_visual = visualinfo;
692
a28f83d37113 updated for version 7.0208
vimboss
parents: 634
diff changeset
2809 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2810
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2811 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2812 * If the cursor is only off by one line, put it at the same position as
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2813 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2814 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2815 */
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2816 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2817 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2818 --curwin->w_cursor.lnum;
2501
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2819 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2820 {
2501
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2821 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2822 {
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2823 curwin->w_cursor.col = curhead->uh_cursor.col;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2824 #ifdef FEAT_VIRTUALEDIT
2501
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2825 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2826 coladvance((colnr_T)curhead->uh_cursor_vcol);
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2827 else
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2828 curwin->w_cursor.coladd = 0;
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2829 #endif
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2830 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2831 else
2501
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents: 2482
diff changeset
2832 beginline(BL_SOL | BL_FIX);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2833 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2834 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2835 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2836 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2837 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2838 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2839 * the first column here. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2840 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2841 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2842 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2843 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2844 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2845
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2846 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2847 check_cursor();
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2848
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2849 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
2850 curbuf->b_u_seq_cur = curhead->uh_seq;
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2851 if (undo)
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2852 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2853 * work we compute this as being just above the just undone change. */
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2854 --curbuf->b_u_seq_cur;
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2855
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2856 /* Remember where we are for ":earlier 1f" and ":later 1f". */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2857 if (curhead->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2858 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2859 if (undo)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2860 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2861 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2862 curbuf->b_u_save_nr_cur = curhead->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2863 }
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
2864
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2865 /* The timestamp can be the same for multiple changes, just use the one of
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2866 * the undone/redone change. */
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
2867 curbuf->b_u_time_cur = curhead->uh_time;
2189
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2868
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2869 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2870 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445
Bram Moolenaar <bram@vim.org>
parents: 2181
diff changeset
2871 #endif
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2872 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2873 u_check(FALSE);
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
2874 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2875 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2876
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2877 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2878 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2879 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2880 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2881 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2882 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2883 u_undo_end(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2884 int did_undo, /* just did an undo */
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2885 int absolute) /* used ":undo N" */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2886 {
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2887 char *msgstr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2888 u_header_T *uhp;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2889 char_u msgbuf[80];
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2890
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2891 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2892 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2893 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2894 #endif
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2895
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2896 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2897 || !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2898 return;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2899
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2900 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2901 --u_newcount;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2902
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2903 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2904 if (u_oldcount == -1)
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2905 msgstr = N_("more line");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2906 else if (u_oldcount < 0)
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2907 msgstr = N_("more lines");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2908 else if (u_oldcount == 1)
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2909 msgstr = N_("line less");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2910 else if (u_oldcount > 1)
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2911 msgstr = N_("fewer lines");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2912 else
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2913 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2914 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2915 if (u_newcount == 1)
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2916 msgstr = N_("change");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2917 else
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2918 msgstr = N_("changes");
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2919 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2920
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2921 if (curbuf->b_u_curhead != NULL)
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2922 {
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2923 /* For ":undo N" we prefer a "after #N" message. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2924 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2925 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2926 uhp = curbuf->b_u_curhead->uh_next.ptr;
798
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2927 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2928 }
95dac6af3b3a updated for version 7.0232
vimboss
parents: 794
diff changeset
2929 else if (did_undo)
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2930 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2931 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
2932 uhp = curbuf->b_u_curhead->uh_next.ptr;
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2933 }
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2934 else
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2935 uhp = curbuf->b_u_newhead;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
2936
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2937 if (uhp == NULL)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2938 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2939 else
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2940 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2941
2282
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2942 #ifdef FEAT_CONCEAL
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2943 {
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2944 win_T *wp;
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2945
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2946 FOR_ALL_WINDOWS(wp)
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2947 {
2378
85b7dc8da5eb Add the 'concealcursor' option to decide when the cursor line is to be
Bram Moolenaar <bram@vim.org>
parents: 2367
diff changeset
2948 if (wp->w_buffer == curbuf && wp->w_p_cole > 0)
2282
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2949 redraw_win_later(wp, NOT_VALID);
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2950 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2951 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2952 #endif
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
2953
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2954 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
2955 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944
b2dcb8457067 updated for version 7.0-070
vimboss
parents: 912
diff changeset
2956 _(msgstr),
794
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2957 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2958 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231
vimboss
parents: 777
diff changeset
2959 msgbuf);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2960 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2961
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2962 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2963 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2964 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2965 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2966 u_sync(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2967 int force) /* Also sync when no_u_sync is set. */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2968 {
825
6675076019ae updated for version 7.0d
vimboss
parents: 810
diff changeset
2969 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d
vimboss
parents: 810
diff changeset
2970 if (curbuf->b_u_synced || (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d
vimboss
parents: 810
diff changeset
2971 return;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2972 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2973 if (im_is_preediting())
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2974 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2975 #endif
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
2976 if (get_undolevel() < 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2977 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2978 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2979 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2980 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2981 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2982 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2983 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2984
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2985 /*
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2986 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2987 */
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2988 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
2989 ex_undolist(exarg_T *eap UNUSED)
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2990 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2991 garray_T ga;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2992 u_header_T *uhp;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2993 int mark;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2994 int nomark;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2995 int changes = 1;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2996 int i;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2997
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2998 /*
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
2999 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3000 * 2: sort the lines
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3001 * 3: display the list
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3002 */
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3003 mark = ++lastmark;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3004 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3005 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3006
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3007 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3008 while (uhp != NULL)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3009 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3010 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777
f664cc974a7a updated for version 7.0227
vimboss
parents: 772
diff changeset
3011 && uhp->uh_walk != mark)
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3012 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3013 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3014 break;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3015 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3016 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3017 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3018 uhp->uh_time);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3019 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3020 {
2627
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3021 while (STRLEN(IObuff) < 33)
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3022 STRCAT(IObuff, " ");
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3023 vim_snprintf_add((char *)IObuff, IOSIZE,
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3024 " %3ld", uhp->uh_save_nr);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3025 }
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3026 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3027 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3028
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3029 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3030
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3031 /* go down in the tree if we haven't been there */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3032 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3033 && uhp->uh_prev.ptr->uh_walk != mark)
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3034 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3035 uhp = uhp->uh_prev.ptr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3036 ++changes;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3037 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3038
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3039 /* go to alternate branch if we haven't been there */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3040 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3041 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3042 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3043 uhp = uhp->uh_alt_next.ptr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3044
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3045 /* go up in the tree if we haven't been there and we are at the
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3046 * start of alternate branches */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3047 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3048 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3049 && uhp->uh_next.ptr->uh_walk != mark)
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3050 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3051 uhp = uhp->uh_next.ptr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3052 --changes;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3053 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3054
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3055 else
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3056 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3057 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3058 uhp->uh_walk = nomark;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3059 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3060 uhp = uhp->uh_alt_prev.ptr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3061 else
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3062 {
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3063 uhp = uhp->uh_next.ptr;
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3064 --changes;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3065 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3066 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3067 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3068
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3069 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3070 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3071 else
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3072 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3073 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3074
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3075 msg_start();
2627
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3076 msg_puts_attr((char_u *)_("number changes when saved"),
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3077 hl_attr(HLF_T));
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3078 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3079 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3080 msg_putchar('\n');
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3081 if (got_int)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3082 break;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3083 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3084 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3085 msg_end();
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3086
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3087 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3088 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3089 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3090
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3091 /*
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3092 * Put the timestamp of an undo header in "buf[buflen]" in a nice format.
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3093 */
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3094 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3095 u_add_time(char_u *buf, size_t buflen, time_t tt)
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3096 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3097 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3098 struct tm *curtime;
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3099
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3100 if (time(NULL) - tt >= 100)
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3101 {
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3102 curtime = localtime(&tt);
2627
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3103 if (time(NULL) - tt < (60L * 60L * 12L))
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3104 /* within 12 hours */
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3105 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
fae6fb779a6b updated for version 7.3.048
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
3106 else
3751
b7eea2409507 updated for version 7.3.634
Bram Moolenaar <bram@vim.org>
parents: 3545
diff changeset
3107 /* longer ago */
2689
26fb122355d4 updated for version 7.3.107
Bram Moolenaar <bram@vim.org>
parents: 2685
diff changeset
3108 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3109 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3110 else
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3111 #endif
835
8bebcabccc2c updated for version 7.0e01
vimboss
parents: 825
diff changeset
3112 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
772
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3113 (long)(time(NULL) - tt));
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3114 }
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3115
aaaca5077255 updated for version 7.0226
vimboss
parents: 766
diff changeset
3116 /*
697
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3117 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3118 */
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3119 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3120 ex_undojoin(exarg_T *eap UNUSED)
697
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3121 {
839
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3122 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3123 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3124 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3125 {
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3126 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3127 return;
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
3128 }
697
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3129 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3130 return; /* already unsynced */
5446
d0595545e98a updated for version 7.4.073
Bram Moolenaar <bram@vim.org>
parents: 5343
diff changeset
3131 if (get_undolevel() < 0)
697
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3132 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3133 else
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3134 {
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3135 /* Go back to the last entry */
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3136 curbuf->b_u_curhead = curbuf->b_u_newhead;
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3137 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3138 }
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3139 }
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3140
f08390485cd3 updated for version 7.0210
vimboss
parents: 692
diff changeset
3141 /*
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
3142 * Called after writing or reloading the file and setting b_changed to FALSE.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3143 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3144 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3145 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3146 u_unchanged(buf_T *buf)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3147 {
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3148 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3149 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3150 }
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3151
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3152 /*
2482
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3153 * After reloading a buffer which was saved for 'undoreload': Find the first
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3154 * line that was changed and set the cursor there.
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3155 */
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3156 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3157 u_find_first_changed(void)
2482
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3158 {
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3159 u_header_T *uhp = curbuf->b_u_newhead;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3160 u_entry_T *uep;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3161 linenr_T lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3162
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3163 if (curbuf->b_u_curhead != NULL || uhp == NULL)
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3164 return; /* undid something in an autocmd? */
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3165
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3166 /* Check that the last undo block was for the whole file. */
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3167 uep = uhp->uh_entry;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3168 if (uep->ue_top != 0 || uep->ue_bot != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3169 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3170
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3171 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3172 && lnum <= uep->ue_size; ++lnum)
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3173 if (STRCMP(ml_get_buf(curbuf, lnum, FALSE),
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3174 uep->ue_array[lnum - 1]) != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3175 {
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3176 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3177 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3178 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3179 }
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3180 if (curbuf->b_ml.ml_line_count != uep->ue_size)
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3181 {
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3182 /* lines added or deleted at the end, put the cursor there */
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3183 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3184 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3185 }
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3186 }
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3187
88751831fa0a When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents: 2410
diff changeset
3188 /*
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3189 * Increase the write count, store it in the last undo header, what would be
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3190 * used for "u".
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3191 */
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3192 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3193 u_update_save_nr(buf_T *buf)
2281
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3194 {
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3195 u_header_T *uhp;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3196
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3197 ++buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3198 buf->b_u_save_nr_cur = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3199 uhp = buf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3200 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3201 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3202 else
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3203 uhp = buf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3204 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3205 uhp->uh_save_nr = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3206 }
e41433ea71df Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents: 2280
diff changeset
3207
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3208 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3209 u_unch_branch(u_header_T *uhp)
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3210 {
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3211 u_header_T *uh;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3212
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3213 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3214 {
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3215 uh->uh_flags |= UH_CHANGED;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3216 if (uh->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3217 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3218 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3219 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3220
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3221 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3222 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3223 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3224 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3225 static u_entry_T *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3226 u_get_headentry(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3227 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3228 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3229 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3230 EMSG(_("E439: undo list corrupt"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3231 return NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3232 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3233 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3234 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3235
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3236 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3237 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3238 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3239 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3240 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3241 u_getbot(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3242 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3243 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3244 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3245
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3246 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3247 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3248 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3249
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3250 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3251 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3252 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3253 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3254 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3255 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3256 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3257 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3258 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3259 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3260 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3261 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3262 EMSG(_("E440: undo line missing"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3263 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3264 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3265 * without deleting the current
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3266 * ones */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3267 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3268
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3269 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3270 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3271
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3272 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3273 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3274
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3275 /*
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3276 * Free one header "uhp" and its entry list and adjust the pointers.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3277 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3278 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3279 u_freeheader(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3280 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3281 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3282 u_header_T **uhpp) /* if not NULL reset when freeing this header */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3283 {
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3284 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3285
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3286 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3287 * because we can never go there. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3288 if (uhp->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3289 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3290
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3291 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3292 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3293
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3294 /* Update the links in the list to remove the header. */
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3295 if (uhp->uh_next.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3296 buf->b_u_oldhead = uhp->uh_prev.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3297 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3298 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3299
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3300 if (uhp->uh_prev.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3301 buf->b_u_newhead = uhp->uh_next.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3302 else
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3303 for (uhap = uhp->uh_prev.ptr; uhap != NULL;
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3304 uhap = uhap->uh_alt_next.ptr)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3305 uhap->uh_next.ptr = uhp->uh_next.ptr;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3306
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3307 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3308 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3309
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3310 /*
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3311 * Free an alternate branch and any following alternate branches.
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3312 */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3313 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3314 u_freebranch(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3315 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3316 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3317 u_header_T **uhpp) /* if not NULL reset when freeing this header */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3318 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3319 u_header_T *tofree, *next;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3320
1440
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3321 /* If this is the top branch we may need to use u_freeheader() to update
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3322 * all the pointers. */
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3323 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3324 {
5448
9818311eeca0 updated for version 7.4.074
Bram Moolenaar <bram@vim.org>
parents: 5446
diff changeset
3325 while (buf->b_u_oldhead != NULL)
9818311eeca0 updated for version 7.4.074
Bram Moolenaar <bram@vim.org>
parents: 5446
diff changeset
3326 u_freeheader(buf, buf->b_u_oldhead, uhpp);
1440
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3327 return;
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3328 }
93ffa40b5320 updated for version 7.1-155
vimboss
parents: 1415
diff changeset
3329
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3330 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3331 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3332
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3333 next = uhp;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3334 while (next != NULL)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3335 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3336 tofree = next;
2242
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3337 if (tofree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3338 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */
bc4685345719 Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents: 2239
diff changeset
3339 next = tofree->uh_prev.ptr;
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3340 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3341 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3342 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3343
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3344 /*
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3345 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3346 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3347 */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3348 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3349 u_freeentries(
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3350 buf_T *buf,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3351 u_header_T *uhp,
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3352 u_header_T **uhpp) /* if not NULL reset when freeing this header */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3353 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3354 u_entry_T *uep, *nuep;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3355
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3356 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3357 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3358 buf->b_u_curhead = NULL;
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3359 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3360 buf->b_u_newhead = NULL; /* freeing the newest entry */
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3361 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3362 *uhpp = NULL;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3363
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3364 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3365 {
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3366 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3367 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3368 }
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3369
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3370 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3371 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3372 #endif
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3373 vim_free((char_u *)uhp);
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
3374 --buf->b_u_numhead;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3375 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3376
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3377 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3378 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3379 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3380 static void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3381 u_freeentry(u_entry_T *uep, long n)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3382 {
414
8ab9c77240d4 updated for version 7.0108
vimboss
parents: 407
diff changeset
3383 while (n > 0)
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3384 vim_free(uep->ue_array[--n]);
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3385 vim_free((char_u *)uep->ue_array);
1415
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3386 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3387 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130
vimboss
parents: 1210
diff changeset
3388 #endif
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3389 vim_free((char_u *)uep);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3390 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3391
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3392 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3393 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3394 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3395 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3396 u_clearall(buf_T *buf)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3397 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3398 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3399 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3400 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3401 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3402 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3403 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3404
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3405 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3406 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3407 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3408 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3409 u_saveline(linenr_T lnum)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3410 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3411 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3412 return;
356
0f2b5d1b8117 updated for version 7.0092
vimboss
parents: 344
diff changeset
3413 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3414 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3415 u_clearline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3416 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3417 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3418 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3419 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3420 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3421 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3422 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3423 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3424
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3425 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3426 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3427 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3428 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3429 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3430 u_clearline(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3431 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3432 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3433 {
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3434 vim_free(curbuf->b_u_line_ptr);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3435 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3436 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3437 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3438 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3439
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3440 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3441 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3442 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3443 * We also allow the cursor to be in another line.
2289
3331756e4232 Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents: 2288
diff changeset
3444 * Careful: may trigger autocommands that reload the buffer.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3445 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3446 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3447 u_undoline(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3448 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3449 colnr_T t;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3450 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3451
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3452 if (undo_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3453 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3454
1534
bdfbf8ef447a updated for version 7.1-249
vimboss
parents: 1440
diff changeset
3455 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249
vimboss
parents: 1440
diff changeset
3456 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3457 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3458 beep_flush();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3459 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3460 }
1534
bdfbf8ef447a updated for version 7.1-249
vimboss
parents: 1440
diff changeset
3461
bdfbf8ef447a updated for version 7.1-249
vimboss
parents: 1440
diff changeset
3462 /* first save the line for the 'u' command */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3463 if (u_savecommon(curbuf->b_u_line_lnum - 1,
2394
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents: 2378
diff changeset
3464 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3465 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3466 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3467 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3468 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3469 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3470 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3471 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3472 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3473 changed_bytes(curbuf->b_u_line_lnum, 0);
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3474 vim_free(curbuf->b_u_line_ptr);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3475 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3476
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3477 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3478 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3479 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3480 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3481 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534
bdfbf8ef447a updated for version 7.1-249
vimboss
parents: 1440
diff changeset
3482 check_cursor_col();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3483 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3484
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3485 /*
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
3486 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
3487 */
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
3488 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3489 u_blockfree(buf_T *buf)
168
4d9eabb1396e updated for version 7.0051
vimboss
parents: 33
diff changeset
3490 {
753
ac005a544e24 updated for version 7.0223
vimboss
parents: 697
diff changeset
3491 while (buf->b_u_oldhead != NULL)
758
d591d4ceeaee updated for version 7.0224
vimboss
parents: 753
diff changeset
3492 u_freeheader(buf, buf->b_u_oldhead, NULL);
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3493 vim_free(buf->b_u_line_ptr);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3494 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3495
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3496 /*
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3497 * u_save_line(): allocate memory and copy line 'lnum' into it.
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3498 * Returns NULL when out of memory.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3499 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3500 static char_u *
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3501 u_save_line(linenr_T lnum)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3502 {
2230
290ee42cae85 Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents: 2229
diff changeset
3503 return vim_strsave(ml_get(lnum));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3504 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3505
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3506 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3507 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3508 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3509 * "nofile" and "scratch" type buffers are considered to always be unchanged.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3510 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3511 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3512 bufIsChanged(buf_T *buf)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3513 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3514 return
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3515 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3516 !bt_dontwrite(buf) &&
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3517 #endif
2685
862d920800b1 updated for version 7.3.103
Bram Moolenaar <bram@vim.org>
parents: 2666
diff changeset
3518 (buf->b_changed || file_ff_differs(buf, TRUE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3519 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3520
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3521 int
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3522 curbufIsChanged(void)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3523 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3524 return
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3525 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3526 !bt_dontwrite(curbuf) &&
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3527 #endif
2685
862d920800b1 updated for version 7.3.103
Bram Moolenaar <bram@vim.org>
parents: 2666
diff changeset
3528 (curbuf->b_changed || file_ff_differs(curbuf, TRUE));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
3529 }
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3530
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3531 #if defined(FEAT_EVAL) || defined(PROTO)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3532 /*
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3533 * For undotree(): Append the list of undo blocks at "first_uhp" to "list".
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3534 * Recursive.
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3535 */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3536 void
7835
4d7ce6c03fda commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents: 7805
diff changeset
3537 u_eval_tree(u_header_T *first_uhp, list_T *list)
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3538 {
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3539 u_header_T *uhp = first_uhp;
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3540 dict_T *dict;
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3541
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3542 while (uhp != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3543 {
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3544 dict = dict_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3545 if (dict == NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3546 return;
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3547 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL);
2282
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents: 2281
diff changeset
3548 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL);
2280
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3549 if (uhp == curbuf->b_u_newhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3550 dict_add_nr_str(dict, "newhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3551 if (uhp == curbuf->b_u_curhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3552 dict_add_nr_str(dict, "curhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3553 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3554 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3555
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3556 if (uhp->uh_alt_next.ptr != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3557 {
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3558 list_T *alt_list = list_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3559
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3560 if (alt_list != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3561 {
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3562 /* Recursive call to add alternate undo tree. */
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3563 u_eval_tree(uhp->uh_alt_next.ptr, alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3564 dict_add_list(dict, "alt", alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3565 }
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3566 }
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3567
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3568 list_append_dict(list, dict);
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3569 uhp = uhp->uh_prev.ptr;
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3570 }
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3571 }
941ff1cd317a Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents: 2271
diff changeset
3572 #endif