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annotate src/libvterm/src/vterm.c @ 13604:caa9825b04cd v8.0.1674

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patch 8.0.1674: libvterm can't handle an OSC string split commit https://github.com/vim/vim/commit/77557a7ae66830cb21c79d3a2b48a93b086599b3 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 7 21:42:56 2018 +0200 patch 8.0.1674: libvterm can't handle an OSC string split Problem: Libvterm can't handle a long OSC string that is split. Solution: When an incomplete OSC string is received copy it to the parser buffer. Increase the size of the parser buffer to be able to handle longer strings.
author Christian Brabandt <cb@256bit.org>
date Sat, 07 Apr 2018 21:45:06 +0200
parents 9f857e6310b6
children 2449b6ce1456
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #define DEFINE_INLINES
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2
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3 #include "vterm_internal.h"
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4
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include <stdarg.h>
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8 #include <string.h>
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9
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10 #include "utf8.h"
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11
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12 /*****************
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13 * API functions *
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14 *****************/
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15
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16 static void *default_malloc(size_t size, void *allocdata UNUSED)
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17 {
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18 void *ptr = malloc(size);
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19 if(ptr)
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20 memset(ptr, 0, size);
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21 return ptr;
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22 }
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23
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24 static void default_free(void *ptr, void *allocdata UNUSED)
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25 {
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26 free(ptr);
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27 }
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28
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29 static VTermAllocatorFunctions default_allocator = {
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30 &default_malloc, /* malloc */
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31 &default_free /* free */
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32 };
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33
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34 VTerm *vterm_new(int rows, int cols)
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35 {
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36 return vterm_new_with_allocator(rows, cols, &default_allocator, NULL);
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37 }
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38
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39 VTerm *vterm_new_with_allocator(int rows, int cols, VTermAllocatorFunctions *funcs, void *allocdata)
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40 {
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41 /* Need to bootstrap using the allocator function directly */
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42 VTerm *vt = (*funcs->malloc)(sizeof(VTerm), allocdata);
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43
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44 vt->allocator = funcs;
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45 vt->allocdata = allocdata;
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46
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47 vt->rows = rows;
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48 vt->cols = cols;
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49
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50 vt->parser.state = NORMAL;
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51
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52 vt->parser.callbacks = NULL;
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53 vt->parser.cbdata = NULL;
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54
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55 vt->parser.strbuffer_len = 500; /* should be able to hold an OSC string */
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56 vt->parser.strbuffer_cur = 0;
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57 vt->parser.strbuffer = vterm_allocator_malloc(vt, vt->parser.strbuffer_len);
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58
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59 vt->outbuffer_len = 200;
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60 vt->outbuffer_cur = 0;
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61 vt->outbuffer = vterm_allocator_malloc(vt, vt->outbuffer_len);
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62
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63 return vt;
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64 }
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65
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66 void vterm_free(VTerm *vt)
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67 {
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68 if(vt->screen)
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69 vterm_screen_free(vt->screen);
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70
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71 if(vt->state)
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72 vterm_state_free(vt->state);
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73
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74 vterm_allocator_free(vt, vt->parser.strbuffer);
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75 vterm_allocator_free(vt, vt->outbuffer);
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76
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77 vterm_allocator_free(vt, vt);
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78 }
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79
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80 INTERNAL void *vterm_allocator_malloc(VTerm *vt, size_t size)
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81 {
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82 return (*vt->allocator->malloc)(size, vt->allocdata);
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83 }
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84
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85 INTERNAL void vterm_allocator_free(VTerm *vt, void *ptr)
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86 {
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87 (*vt->allocator->free)(ptr, vt->allocdata);
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88 }
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89
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90 void vterm_get_size(const VTerm *vt, int *rowsp, int *colsp)
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91 {
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92 if(rowsp)
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93 *rowsp = vt->rows;
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94 if(colsp)
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95 *colsp = vt->cols;
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96 }
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97
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98 void vterm_set_size(VTerm *vt, int rows, int cols)
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99 {
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100 vt->rows = rows;
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101 vt->cols = cols;
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102
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103 if(vt->parser.callbacks && vt->parser.callbacks->resize)
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104 (*vt->parser.callbacks->resize)(rows, cols, vt->parser.cbdata);
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105 }
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106
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107 int vterm_get_utf8(const VTerm *vt)
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108 {
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109 return vt->mode.utf8;
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110 }
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111
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112 void vterm_set_utf8(VTerm *vt, int is_utf8)
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113 {
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114 vt->mode.utf8 = is_utf8;
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115 }
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116
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117 INTERNAL void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len)
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118 {
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119 if(len > vt->outbuffer_len - vt->outbuffer_cur) {
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120 DEBUG_LOG("vterm_push_output(): buffer overflow; truncating output\n");
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121 len = vt->outbuffer_len - vt->outbuffer_cur;
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122 }
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123
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124 memcpy(vt->outbuffer + vt->outbuffer_cur, bytes, len);
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125 vt->outbuffer_cur += len;
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126 }
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127
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128 static int outbuffer_is_full(VTerm *vt)
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129 {
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130 return vt->outbuffer_cur >= vt->outbuffer_len - 1;
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131 }
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132
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133 #if (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 500) \
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134 || defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE)
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135 # undef VSNPRINTF
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136 # define VSNPRINTF vsnprintf
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137 #else
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
138 # ifdef VSNPRINTF
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diff changeset
139 /* Use a provided vsnprintf() function. */
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
140 int VSNPRINTF(char *str, size_t str_m, const char *fmt, va_list ap);
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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parents: 11621
diff changeset
141 # endif
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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parents: 11621
diff changeset
142 #endif
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
143
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
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diff changeset
144
11621
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diff changeset
145 INTERNAL void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args)
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parents:
diff changeset
146 {
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parents:
diff changeset
147 int written;
11653
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
148 #ifndef VSNPRINTF
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diff changeset
149 /* When vsnprintf() is not available (C90) fall back to vsprintf(). */
11621
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diff changeset
150 char buffer[1024]; /* 1Kbyte is enough for everybody, right? */
11653
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
151 #endif
11621
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diff changeset
152
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parents:
diff changeset
153 if(outbuffer_is_full(vt)) {
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parents:
diff changeset
154 DEBUG_LOG("vterm_push_output(): buffer overflow; truncating output\n");
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parents:
diff changeset
155 return;
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
156 }
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parents:
diff changeset
157
11653
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
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diff changeset
158 #ifdef VSNPRINTF
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
159 written = VSNPRINTF(vt->outbuffer + vt->outbuffer_cur,
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
parents: 11621
diff changeset
160 vt->outbuffer_len - vt->outbuffer_cur,
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
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diff changeset
161 format, args);
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
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diff changeset
162
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
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diff changeset
163 if(written == (int)(vt->outbuffer_len - vt->outbuffer_cur)) {
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
164 /* output was truncated */
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
165 vt->outbuffer_cur = vt->outbuffer_len - 1;
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diff changeset
166 }
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
Christian Brabandt <cb@256bit.org>
parents: 11621
diff changeset
167 else
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
168 vt->outbuffer_cur += written;
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
169 #else
11621
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diff changeset
170 written = vsprintf(buffer, format, args);
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diff changeset
171
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parents:
diff changeset
172 if(written >= (int)(vt->outbuffer_len - vt->outbuffer_cur)) {
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parents:
diff changeset
173 /* output was truncated */
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parents:
diff changeset
174 written = vt->outbuffer_len - vt->outbuffer_cur;
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parents:
diff changeset
175 }
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
176 if (written > 0)
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parents:
diff changeset
177 {
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parents:
diff changeset
178 strncpy(vt->outbuffer + vt->outbuffer_cur, buffer, written + 1);
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parents:
diff changeset
179 vt->outbuffer_cur += written;
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parents:
diff changeset
180 }
11653
67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
181 #endif
11621
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parents:
diff changeset
182 }
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parents:
diff changeset
183
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diff changeset
184 INTERNAL void vterm_push_output_sprintf(VTerm *vt, const char *format, ...)
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parents:
diff changeset
185 {
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parents:
diff changeset
186 va_list args;
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parents:
diff changeset
187 va_start(args, format);
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parents:
diff changeset
188 vterm_push_output_vsprintf(vt, format, args);
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parents:
diff changeset
189 va_end(args);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
190 }
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parents:
diff changeset
191
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parents:
diff changeset
192 INTERNAL void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...)
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parents:
diff changeset
193 {
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parents:
diff changeset
194 size_t orig_cur = vt->outbuffer_cur;
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parents:
diff changeset
195 va_list args;
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parents:
diff changeset
196
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parents:
diff changeset
197 if(ctrl >= 0x80 && !vt->mode.ctrl8bit)
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parents:
diff changeset
198 vterm_push_output_sprintf(vt, ESC_S "%c", ctrl - 0x40);
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parents:
diff changeset
199 else
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parents:
diff changeset
200 vterm_push_output_sprintf(vt, "%c", ctrl);
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parents:
diff changeset
201
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parents:
diff changeset
202 va_start(args, fmt);
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parents:
diff changeset
203 vterm_push_output_vsprintf(vt, fmt, args);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
204 va_end(args);
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parents:
diff changeset
205
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parents:
diff changeset
206 if(outbuffer_is_full(vt))
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parents:
diff changeset
207 vt->outbuffer_cur = orig_cur;
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parents:
diff changeset
208 }
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parents:
diff changeset
209
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parents:
diff changeset
210 INTERNAL void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...)
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parents:
diff changeset
211 {
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parents:
diff changeset
212 size_t orig_cur = vt->outbuffer_cur;
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parents:
diff changeset
213 va_list args;
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parents:
diff changeset
214
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
215 if(!vt->mode.ctrl8bit)
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parents:
diff changeset
216 vterm_push_output_sprintf(vt, ESC_S "%c", C1_DCS - 0x40);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
217 else
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parents:
diff changeset
218 vterm_push_output_sprintf(vt, "%c", C1_DCS);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
219
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
220 va_start(args, fmt);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
221 vterm_push_output_vsprintf(vt, fmt, args);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
222 va_end(args);
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
223
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
224 vterm_push_output_sprintf_ctrl(vt, C1_ST, "");
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parents:
diff changeset
225
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
226 if(outbuffer_is_full(vt))
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parents:
diff changeset
227 vt->outbuffer_cur = orig_cur;
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parents:
diff changeset
228 }
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
229
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parents:
diff changeset
230 size_t vterm_output_get_buffer_size(const VTerm *vt)
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parents:
diff changeset
231 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
232 return vt->outbuffer_len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
233 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
234
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
235 size_t vterm_output_get_buffer_current(const VTerm *vt)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
236 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
237 return vt->outbuffer_cur;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
238 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
239
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
240 size_t vterm_output_get_buffer_remaining(const VTerm *vt)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
241 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
242 return vt->outbuffer_len - vt->outbuffer_cur;
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
243 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
244
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
245 size_t vterm_output_read(VTerm *vt, char *buffer, size_t len)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
246 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
247 if(len > vt->outbuffer_cur)
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
248 len = vt->outbuffer_cur;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
249
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
250 memcpy(buffer, vt->outbuffer, len);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
251
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
252 if(len < vt->outbuffer_cur)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
253 memmove(vt->outbuffer, vt->outbuffer + len, vt->outbuffer_cur - len);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
254
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
255 vt->outbuffer_cur -= len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
256
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
257 return len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
258 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
259
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
260 VTermValueType vterm_get_attr_type(VTermAttr attr)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
261 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
262 switch(attr) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
263 case VTERM_ATTR_BOLD: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
264 case VTERM_ATTR_UNDERLINE: return VTERM_VALUETYPE_INT;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
265 case VTERM_ATTR_ITALIC: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
266 case VTERM_ATTR_BLINK: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
267 case VTERM_ATTR_REVERSE: return VTERM_VALUETYPE_BOOL;
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
268 case VTERM_ATTR_STRIKE: return VTERM_VALUETYPE_BOOL;
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
269 case VTERM_ATTR_FONT: return VTERM_VALUETYPE_INT;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
270 case VTERM_ATTR_FOREGROUND: return VTERM_VALUETYPE_COLOR;
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
271 case VTERM_ATTR_BACKGROUND: return VTERM_VALUETYPE_COLOR;
13531
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
272
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
273 case VTERM_N_ATTRS: return 0;
11621
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
274 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
275 return 0; /* UNREACHABLE */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
276 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
277
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
278 VTermValueType vterm_get_prop_type(VTermProp prop)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
279 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
280 switch(prop) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
281 case VTERM_PROP_CURSORVISIBLE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
282 case VTERM_PROP_CURSORBLINK: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
283 case VTERM_PROP_ALTSCREEN: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
284 case VTERM_PROP_TITLE: return VTERM_VALUETYPE_STRING;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
285 case VTERM_PROP_ICONNAME: return VTERM_VALUETYPE_STRING;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
286 case VTERM_PROP_REVERSE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
287 case VTERM_PROP_CURSORSHAPE: return VTERM_VALUETYPE_INT;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
288 case VTERM_PROP_MOUSE: return VTERM_VALUETYPE_INT;
12076
ca4931a20f8c patch 8.0.0918: cannot get terminal window cursor shape or attributes
Christian Brabandt <cb@256bit.org>
parents: 11653
diff changeset
289 case VTERM_PROP_CURSORCOLOR: return VTERM_VALUETYPE_STRING;
13531
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
290
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
291 case VTERM_N_PROPS: return 0;
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
292 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
293 return 0; /* UNREACHABLE */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
294 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
295
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
296 void vterm_scroll_rect(VTermRect rect,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
297 int downward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
298 int rightward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
299 int (*moverect)(VTermRect src, VTermRect dest, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
300 int (*eraserect)(VTermRect rect, int selective, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
301 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
302 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
303 VTermRect src;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
304 VTermRect dest;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
305
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
306 if(abs(downward) >= rect.end_row - rect.start_row ||
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
307 abs(rightward) >= rect.end_col - rect.start_col) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
308 /* Scroll more than area; just erase the lot */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
309 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
310 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
311 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
312
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
313 if(rightward >= 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
314 /* rect: [XXX................]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
315 * src: [----------------]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
316 * dest: [----------------]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
317 */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
318 dest.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
319 dest.end_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
320 src.start_col = rect.start_col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
321 src.end_col = rect.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
322 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
323 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
324 /* rect: [................XXX]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
325 * src: [----------------]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
326 * dest: [----------------]
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
327 */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
328 int leftward = -rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
329 dest.start_col = rect.start_col + leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
330 dest.end_col = rect.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
331 src.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
332 src.end_col = rect.end_col - leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
333 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
334
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
335 if(downward >= 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
336 dest.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
337 dest.end_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
338 src.start_row = rect.start_row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
339 src.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
340 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
341 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
342 int upward = -downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
343 dest.start_row = rect.start_row + upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
344 dest.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
345 src.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
346 src.end_row = rect.end_row - upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
347 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
348
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
349 if(moverect)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
350 (*moverect)(dest, src, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
351
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
352 if(downward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
353 rect.start_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
354 else if(downward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
355 rect.end_row = rect.start_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
356
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
357 if(rightward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
358 rect.start_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
359 else if(rightward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
360 rect.end_col = rect.start_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
361
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
362 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
363 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
364
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
365 void vterm_copy_cells(VTermRect dest,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
366 VTermRect src,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
367 void (*copycell)(VTermPos dest, VTermPos src, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
368 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
369 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
370 int downward = src.start_row - dest.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
371 int rightward = src.start_col - dest.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
372
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
373 int init_row, test_row, init_col, test_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
374 int inc_row, inc_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
375
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
376 VTermPos pos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
377
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
378 if(downward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
379 init_row = dest.end_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
380 test_row = dest.start_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
381 inc_row = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
382 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
383 else /* downward >= 0 */ {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
384 init_row = dest.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
385 test_row = dest.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
386 inc_row = +1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
387 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
388
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
389 if(rightward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
390 init_col = dest.end_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
391 test_col = dest.start_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
392 inc_col = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
393 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
394 else /* rightward >= 0 */ {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
395 init_col = dest.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
396 test_col = dest.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
397 inc_col = +1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
398 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
399
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
400 for(pos.row = init_row; pos.row != test_row; pos.row += inc_row)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
401 for(pos.col = init_col; pos.col != test_col; pos.col += inc_col) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
402 VTermPos srcpos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
403 srcpos.row = pos.row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
404 srcpos.col = pos.col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
405 (*copycell)(pos, srcpos, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
406 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
407 }