annotate src/libvterm/src/vterm.c @ 20458:ffadba5f898c v8.2.0783

patch 8.2.0783: libvterm code lags behind the upstream version Commit: https://github.com/vim/vim/commit/c4c9f7e43e7229c78919a5618003ce8aac3e1785 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 17 20:52:45 2020 +0200 patch 8.2.0783: libvterm code lags behind the upstream version Problem: Libvterm code lags behind the upstream version. Solution: Include revisions 728 - 729.
author Bram Moolenaar <Bram@vim.org>
date Sun, 17 May 2020 21:00:03 +0200
parents 3be01cf0a632
children c15dd3da4f47
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #define DEFINE_INLINES
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2
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3 // vim: set sw=2 :
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4 #include "vterm_internal.h"
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5
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <stdarg.h>
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9 #include <string.h>
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10
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11 #include "utf8.h"
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12
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13 ///////////////////
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14 // API functions //
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15 ///////////////////
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16
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17 static void *default_malloc(size_t size, void *allocdata UNUSED)
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18 {
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19 void *ptr = malloc(size);
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20 if(ptr)
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21 memset(ptr, 0, size);
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22 return ptr;
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23 }
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24
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25 static void default_free(void *ptr, void *allocdata UNUSED)
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26 {
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27 free(ptr);
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28 }
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29
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30 static VTermAllocatorFunctions default_allocator = {
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31 &default_malloc, // malloc
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32 &default_free // free
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33 };
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34
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35 VTerm *vterm_new(int rows, int cols)
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36 {
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37 return vterm_new_with_allocator(rows, cols, &default_allocator, NULL);
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38 }
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39
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40 VTerm *vterm_new_with_allocator(int rows, int cols, VTermAllocatorFunctions *funcs, void *allocdata)
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41 {
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42 // Need to bootstrap using the allocator function directly
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43 VTerm *vt = (*funcs->malloc)(sizeof(VTerm), allocdata);
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44
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45 if (vt == NULL)
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46 return NULL;
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47 vt->allocator = funcs;
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48 vt->allocdata = allocdata;
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49
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50 vt->rows = rows;
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51 vt->cols = cols;
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52
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53 vt->parser.state = NORMAL;
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54
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55 vt->parser.callbacks = NULL;
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56 vt->parser.cbdata = NULL;
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57
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58 vt->parser.strbuffer_len = 500; // should be able to hold an OSC string
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59 vt->parser.strbuffer_cur = 0;
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60 vt->parser.strbuffer = vterm_allocator_malloc(vt, vt->parser.strbuffer_len);
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61 if (vt->parser.strbuffer == NULL)
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62 {
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63 vterm_allocator_free(vt, vt);
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64 return NULL;
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65 }
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66
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67 vt->outbuffer_len = 200;
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68 vt->outbuffer_cur = 0;
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69 vt->outbuffer = vterm_allocator_malloc(vt, vt->outbuffer_len);
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70 if (vt->outbuffer == NULL)
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71 {
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72 vterm_allocator_free(vt, vt->parser.strbuffer);
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73 vterm_allocator_free(vt, vt);
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74 return NULL;
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75 }
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76
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77 vt->tmpbuffer_len = 64;
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78 vt->tmpbuffer = vterm_allocator_malloc(vt, vt->tmpbuffer_len);
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79
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80 return vt;
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81 }
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82
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83 void vterm_free(VTerm *vt)
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84 {
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85 if(vt->screen)
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86 vterm_screen_free(vt->screen);
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87
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88 if(vt->state)
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89 vterm_state_free(vt->state);
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90
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91 vterm_allocator_free(vt, vt->parser.strbuffer);
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92 vterm_allocator_free(vt, vt->outbuffer);
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93
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94 vterm_allocator_free(vt, vt);
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95 }
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96
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97 INTERNAL void *vterm_allocator_malloc(VTerm *vt, size_t size)
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98 {
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99 return (*vt->allocator->malloc)(size, vt->allocdata);
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100 }
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101
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102 /*
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103 * Free "ptr" unless it is NULL.
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104 */
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105 INTERNAL void vterm_allocator_free(VTerm *vt, void *ptr)
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106 {
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107 if (ptr)
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108 (*vt->allocator->free)(ptr, vt->allocdata);
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109 }
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110
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111 void vterm_get_size(const VTerm *vt, int *rowsp, int *colsp)
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112 {
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113 if(rowsp)
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114 *rowsp = vt->rows;
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115 if(colsp)
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116 *colsp = vt->cols;
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117 }
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118
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119 void vterm_set_size(VTerm *vt, int rows, int cols)
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120 {
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121 vt->rows = rows;
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122 vt->cols = cols;
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123
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124 if(vt->parser.callbacks && vt->parser.callbacks->resize)
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125 (*vt->parser.callbacks->resize)(rows, cols, vt->parser.cbdata);
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126 }
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127
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128 int vterm_get_utf8(const VTerm *vt)
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129 {
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130 return vt->mode.utf8;
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131 }
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132
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133 void vterm_set_utf8(VTerm *vt, int is_utf8)
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134 {
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135 vt->mode.utf8 = is_utf8;
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diff changeset
136 }
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parents:
diff changeset
137
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diff changeset
138 INTERNAL void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len)
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diff changeset
139 {
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diff changeset
140 if(len > vt->outbuffer_len - vt->outbuffer_cur) {
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diff changeset
141 DEBUG_LOG("vterm_push_output_bytes(): buffer overflow; dropping output\n");
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
142 return;
11621
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parents:
diff changeset
143 }
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parents:
diff changeset
144
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parents:
diff changeset
145 memcpy(vt->outbuffer + vt->outbuffer_cur, bytes, len);
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diff changeset
146 vt->outbuffer_cur += len;
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parents:
diff changeset
147 }
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diff changeset
148
12507
47da4dcc897e patch 8.0.1132: #if condition is not portable
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parents: 12076
diff changeset
149 #if (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 500) \
47da4dcc897e patch 8.0.1132: #if condition is not portable
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diff changeset
150 || defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE)
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diff changeset
151 # undef VSNPRINTF
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diff changeset
152 # define VSNPRINTF vsnprintf
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153 # undef SNPRINTF
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diff changeset
154 # define SNPRINTF snprintf
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diff changeset
155 #else
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diff changeset
156 # ifdef VSNPRINTF
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diff changeset
157 // Use a provided vsnprintf() function.
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diff changeset
158 int VSNPRINTF(char *str, size_t str_m, const char *fmt, va_list ap);
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diff changeset
159 # endif
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diff changeset
160 # ifdef SNPRINTF
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diff changeset
161 // Use a provided snprintf() function.
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diff changeset
162 int SNPRINTF(char *str, size_t str_m, const char *fmt, ...);
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diff changeset
163 # endif
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diff changeset
164 #endif
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165
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166
11621
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167 INTERNAL void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args)
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diff changeset
168 {
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diff changeset
169 size_t len;
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diff changeset
170 #ifndef VSNPRINTF
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diff changeset
171 // When vsnprintf() is not available (C90) fall back to vsprintf().
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
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diff changeset
172 char buffer[1024]; // 1Kbyte is enough for everybody, right?
11653
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diff changeset
173 #endif
11621
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diff changeset
174
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67cf0d45b006 patch 8.0.0709: libvterm cannot use vsnprintf()
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diff changeset
175 #ifdef VSNPRINTF
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ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
176 len = VSNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len, format, args);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
177 vterm_push_output_bytes(vt, vt->tmpbuffer, len);
11653
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diff changeset
178 #else
20458
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diff changeset
179 len = vsprintf(buffer, format, args);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
180 vterm_push_output_bytes(vt, buffer, len);
11653
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diff changeset
181 #endif
11621
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diff changeset
182 }
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diff changeset
183
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parents:
diff changeset
184 INTERNAL void vterm_push_output_sprintf(VTerm *vt, const char *format, ...)
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diff changeset
185 {
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diff changeset
186 va_list args;
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diff changeset
187 va_start(args, format);
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diff changeset
188 vterm_push_output_vsprintf(vt, format, args);
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diff changeset
189 va_end(args);
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diff changeset
190 }
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diff changeset
191
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diff changeset
192 INTERNAL void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...)
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diff changeset
193 {
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diff changeset
194 size_t cur;
11621
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195 va_list args;
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diff changeset
196
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197 if(ctrl >= 0x80 && !vt->mode.ctrl8bit)
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diff changeset
198 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
199 ESC_S "%c", ctrl - 0x40);
11621
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diff changeset
200 else
20458
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
201 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
202 "%c", ctrl);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
203 if(cur >= vt->tmpbuffer_len)
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diff changeset
204 return;
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diff changeset
205 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
206
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
207 va_start(args, fmt);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
208 vterm_push_output_vsprintf(vt, fmt, args);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
209 va_end(args);
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diff changeset
210 }
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
211
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
212 INTERNAL void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...)
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
213 {
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
214 size_t cur;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
215 va_list args;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
216
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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parents: 18802
diff changeset
217 if(!vt->mode.ctrl8bit)
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
218 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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parents: 18802
diff changeset
219 ESC_S "%c", C1_DCS - 0x40);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
220 else
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
221 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
222 "%c", C1_DCS);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
223 if(cur >= vt->tmpbuffer_len)
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
224 return;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
225 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
11621
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diff changeset
226
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diff changeset
227 va_start(args, fmt);
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parents:
diff changeset
228 vterm_push_output_vsprintf(vt, fmt, args);
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parents:
diff changeset
229 va_end(args);
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parents:
diff changeset
230
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
231 if(!vt->mode.ctrl8bit)
20458
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
232 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
233 ESC_S "%c", C1_ST - 0x40);
11621
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
234 else
20458
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
235 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
236 "%c", C1_ST);
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
237 if(cur >= vt->tmpbuffer_len)
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
238 return;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
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diff changeset
239 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
11621
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parents:
diff changeset
240 }
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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 size_t vterm_output_get_buffer_size(const VTerm *vt)
b8299e742f41 patch 8.0.0693: no terminal emulator support
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parents:
diff changeset
243 {
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parents:
diff changeset
244 return vt->outbuffer_len;
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parents:
diff changeset
245 }
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
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parents:
diff changeset
247 size_t vterm_output_get_buffer_current(const VTerm *vt)
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parents:
diff changeset
248 {
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parents:
diff changeset
249 return vt->outbuffer_cur;
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parents:
diff changeset
250 }
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
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parents:
diff changeset
252 size_t vterm_output_get_buffer_remaining(const VTerm *vt)
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parents:
diff changeset
253 {
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parents:
diff changeset
254 return vt->outbuffer_len - vt->outbuffer_cur;
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parents:
diff changeset
255 }
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
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parents:
diff changeset
257 size_t vterm_output_read(VTerm *vt, char *buffer, size_t len)
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parents:
diff changeset
258 {
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parents:
diff changeset
259 if(len > vt->outbuffer_cur)
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parents:
diff changeset
260 len = vt->outbuffer_cur;
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parents:
diff changeset
261
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parents:
diff changeset
262 memcpy(buffer, vt->outbuffer, len);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
263
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
264 if(len < vt->outbuffer_cur)
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
265 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
266
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
267 vt->outbuffer_cur -= len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
268
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
269 return len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
270 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
271
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
272 VTermValueType vterm_get_attr_type(VTermAttr attr)
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
273 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
274 switch(attr) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
275 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
276 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
277 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
278 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
279 case VTERM_ATTR_REVERSE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
280 case VTERM_ATTR_STRIKE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
281 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
282 case VTERM_ATTR_FOREGROUND: return VTERM_VALUETYPE_COLOR;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
283 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
284
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
285 case VTERM_N_ATTRS: return 0;
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
286 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
287 return 0; // UNREACHABLE
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
288 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
289
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
290 VTermValueType vterm_get_prop_type(VTermProp prop)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
291 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
292 switch(prop) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
293 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
294 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
295 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
296 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
297 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
298 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
299 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
300 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
301 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
302
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
303 case VTERM_N_PROPS: return 0;
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
304 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
305 return 0; // UNREACHABLE
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
306 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
307
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
308 void vterm_scroll_rect(VTermRect rect,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
309 int downward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
310 int rightward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
311 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
312 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
313 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
314 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
315 VTermRect src;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
316 VTermRect 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 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
319 abs(rightward) >= rect.end_col - rect.start_col) {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
320 // Scroll more than area; just erase the lot
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
321 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
322 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
323 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
324
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
325 if(rightward >= 0) {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
326 // rect: [XXX................]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
327 // src: [----------------]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
328 // dest: [----------------]
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
329 dest.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
330 dest.end_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
331 src.start_col = rect.start_col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
332 src.end_col = rect.end_col;
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 else {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
335 // rect: [................XXX]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
336 // src: [----------------]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
337 // dest: [----------------]
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
338 int leftward = -rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
339 dest.start_col = rect.start_col + leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
340 dest.end_col = rect.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
341 src.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
342 src.end_col = rect.end_col - leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
343 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
344
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
345 if(downward >= 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
346 dest.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
347 dest.end_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
348 src.start_row = rect.start_row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
349 src.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
350 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
351 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
352 int upward = -downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
353 dest.start_row = rect.start_row + upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
354 dest.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
355 src.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
356 src.end_row = rect.end_row - upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
357 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
358
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
359 if(moverect)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
360 (*moverect)(dest, src, user);
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 if(downward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
363 rect.start_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
364 else if(downward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
365 rect.end_row = rect.start_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
366
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
367 if(rightward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
368 rect.start_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
369 else if(rightward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
370 rect.end_col = rect.start_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
371
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
372 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
373 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
374
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
375 void vterm_copy_cells(VTermRect dest,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
376 VTermRect src,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
377 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
378 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
379 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
380 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
381 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
382
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
383 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
384 int inc_row, inc_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
385
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
386 VTermPos pos;
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 if(downward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
389 init_row = dest.end_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
390 test_row = dest.start_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
391 inc_row = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
392 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
393 else {
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
394 // downward >= 0
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
395 init_row = dest.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
396 test_row = dest.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
397 inc_row = +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 if(rightward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
401 init_col = dest.end_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
402 test_col = dest.start_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
403 inc_col = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
404 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
405 else {
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
406 // rightward >= 0
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
407 init_col = dest.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
408 test_col = dest.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
409 inc_col = +1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
410 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
411
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
412 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
413 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
414 VTermPos srcpos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
415 srcpos.row = pos.row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
416 srcpos.col = pos.col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
417 (*copycell)(pos, srcpos, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
418 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
419 }