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annotate src/libvterm/src/vterm_internal.h @ 30880:82336c3b679d v9.0.0774

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patch 9.0.0774: the libvterm code is outdated Commit: https://github.com/vim/vim/commit/6a12d26f3404e45ce25cf9152857e355b28f392a Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 16 19:26:52 2022 +0100 patch 9.0.0774: the libvterm code is outdated Problem: The libvterm code is outdated. Solution: Include libvterm changes from revision 802 to 817. Revert some changes made for C89.
author Bram Moolenaar <Bram@vim.org>
date Sun, 16 Oct 2022 20:30:07 +0200
parents 2d2758ffd959
children ac9464a32606
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #ifndef __VTERM_INTERNAL_H__
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2 #define __VTERM_INTERNAL_H__
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3
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4 #include "vterm.h"
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5
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6 #include <stdarg.h>
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7
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8 #if defined(__GNUC__) && !defined(__MINGW32__)
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9 # define INTERNAL __attribute__((visibility("internal")))
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10 #else
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11 # define INTERNAL
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12 #endif
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13
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14 #if defined(__GNUC__) || defined(__MINGW32__)
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15 # define UNUSED __attribute__((unused))
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16 #else
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17 # define UNUSED
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18 #endif
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19
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20 #ifdef DEBUG
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21 # define DEBUG_LOG(s) fprintf(stderr, s)
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22 # define DEBUG_LOG1(s, a) fprintf(stderr, s, a)
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23 # define DEBUG_LOG2(s, a, b) fprintf(stderr, s, a, b)
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24 # define DEBUG_LOG3(s, a, b, c) fprintf(stderr, s, a, b, c)
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25 #else
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26 # define DEBUG_LOG(s)
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27 # define DEBUG_LOG1(s, a)
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28 # define DEBUG_LOG2(s, a, b)
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29 # define DEBUG_LOG3(s, a, b, c)
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30 #endif
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31
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32 #define ESC_S "\x1b"
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33
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34 #define INTERMED_MAX 16
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35
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36 #define CSI_ARGS_MAX 16
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37 #define CSI_LEADER_MAX 16
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38
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39 #define BUFIDX_PRIMARY 0
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40 #define BUFIDX_ALTSCREEN 1
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41
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42 typedef struct VTermEncoding VTermEncoding;
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43
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44 typedef struct {
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45 VTermEncoding *enc;
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46
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47 // This size should be increased if required by other stateful encodings
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48 char data[4*sizeof(uint32_t)];
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49 } VTermEncodingInstance;
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50
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51 struct VTermPen
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52 {
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53 VTermColor fg;
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54 VTermColor bg;
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55 unsigned int bold:1;
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56 unsigned int underline:2;
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57 unsigned int italic:1;
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58 unsigned int blink:1;
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59 unsigned int reverse:1;
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60 unsigned int conceal:1;
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61 unsigned int strike:1;
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62 unsigned int font:4; /* To store 0-9 */
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63 unsigned int small:1;
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64 unsigned int baseline:2;
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65 };
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66
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67 struct VTermState
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68 {
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69 VTerm *vt;
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70
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71 const VTermStateCallbacks *callbacks;
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72 void *cbdata;
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73
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74 const VTermStateFallbacks *fallbacks;
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75 void *fbdata;
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76
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77 int rows;
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78 int cols;
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79
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80 /* Current cursor position */
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81 VTermPos pos;
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82
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83 int at_phantom; /* True if we're on the "81st" phantom column to defer a wraparound */
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84
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85 int scrollregion_top;
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86 int scrollregion_bottom; /* -1 means unbounded */
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87 #define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows)
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88 int scrollregion_left;
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89 #define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0)
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90 int scrollregion_right; /* -1 means unbounded */
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91 #define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols)
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92
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93 /* Bitvector of tab stops */
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94 unsigned char *tabstops;
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95
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96 /* Primary and Altscreen; lineinfos[1] is lazily allocated as needed */
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97 VTermLineInfo *lineinfos[2];
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98
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99 /* lineinfo will == lineinfos[0] or lineinfos[1], depending on altscreen */
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100 VTermLineInfo *lineinfo;
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101 #define ROWWIDTH(state,row) ((state)->lineinfo[(row)].doublewidth ? ((state)->cols / 2) : (state)->cols)
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102 #define THISROWWIDTH(state) ROWWIDTH(state, (state)->pos.row)
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103
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104 /* Mouse state */
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105 int mouse_col, mouse_row;
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106 int mouse_buttons;
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107 int mouse_flags;
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108
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109 enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol;
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110
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111 /* Last glyph output, for Unicode recombining purposes */
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112 uint32_t *combine_chars;
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113 size_t combine_chars_size; // Number of ELEMENTS in the above
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114 int combine_width; // The width of the glyph above
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115 VTermPos combine_pos; // Position before movement
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116
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117 struct {
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118 unsigned int keypad:1;
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119 unsigned int cursor:1;
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120 unsigned int autowrap:1;
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121 unsigned int insert:1;
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122 unsigned int newline:1;
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123 unsigned int cursor_visible:1;
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124 unsigned int cursor_blink:1;
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125 unsigned int cursor_shape:2;
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126 unsigned int alt_screen:1;
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127 unsigned int origin:1;
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128 unsigned int screen:1;
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129 unsigned int leftrightmargin:1;
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130 unsigned int bracketpaste:1;
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131 unsigned int report_focus:1;
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132 unsigned int modify_other_keys:1;
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133 } mode;
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134
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135 VTermEncodingInstance encoding[4], encoding_utf8;
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136 int gl_set, gr_set, gsingle_set;
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137
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138 struct VTermPen pen;
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139
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140 VTermColor default_fg;
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141 VTermColor default_bg;
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142 VTermColor colors[16]; // Store the 8 ANSI and the 8 ANSI high-brights only
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143
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144 int bold_is_highbright;
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145
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146 unsigned int protected_cell : 1;
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147
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148 /* Saved state under DEC mode 1048/1049 */
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149 struct {
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150 VTermPos pos;
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151 struct VTermPen pen;
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152
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153 struct {
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154 unsigned int cursor_visible:1;
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155 unsigned int cursor_blink:1;
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156 unsigned int cursor_shape:2;
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157 } mode;
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158 } saved;
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159
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160 /* Temporary state for DECRQSS parsing */
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161 union {
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162 char decrqss[4];
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163 struct {
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164 uint16_t mask;
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165 enum {
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166 SELECTION_INITIAL,
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167 SELECTION_SELECTED,
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168 SELECTION_QUERY,
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169 SELECTION_SET_INITIAL,
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170 SELECTION_SET,
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171 } state : 8;
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172 uint32_t recvpartial;
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173 uint32_t sendpartial;
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174 } selection;
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175 } tmp;
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176
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177 struct {
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178 const VTermSelectionCallbacks *callbacks;
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179 void *user;
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180 char *buffer;
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181 size_t buflen;
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182 } selection;
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183 };
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184
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185 struct VTerm
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186 {
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187 const VTermAllocatorFunctions *allocator;
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188 void *allocdata;
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189
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190 int rows;
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191 int cols;
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192
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193 struct {
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194 unsigned int utf8:1;
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195 unsigned int ctrl8bit:1;
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196 } mode;
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197
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198 struct {
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199 enum VTermParserState {
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200 NORMAL,
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201 CSI_LEADER,
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202 CSI_ARGS,
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203 CSI_INTERMED,
20498
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204 DCS_COMMAND,
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205 /* below here are the "string states" */
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206 OSC_COMMAND,
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207 OSC,
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208 DCS,
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209 APC,
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210 PM,
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211 SOS,
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212 } state;
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213
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214 unsigned int in_esc : 1;
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215
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216 int intermedlen;
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217 char intermed[INTERMED_MAX];
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218
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219 union {
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220 struct {
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221 int leaderlen;
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222 char leader[CSI_LEADER_MAX];
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223
20488
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224 int argi;
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225 long args[CSI_ARGS_MAX];
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226 } csi;
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227 struct {
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228 int command;
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229 } osc;
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230 struct {
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231 int commandlen;
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diff changeset
232 char command[CSI_LEADER_MAX];
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233 } dcs;
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234 } v;
13531
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235
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236 const VTermParserCallbacks *callbacks;
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237 void *cbdata;
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238
20488
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239 int string_initial;
13531
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240 } parser;
11621
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241
20518
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242 /* len == malloc()ed size; cur == number of valid bytes */
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243
20460
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diff changeset
244 VTermOutputCallback *outfunc;
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245 void *outdata;
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246
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diff changeset
247 char *outbuffer;
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248 size_t outbuffer_len;
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249 size_t outbuffer_cur;
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diff changeset
250
20458
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diff changeset
251 char *tmpbuffer;
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252 size_t tmpbuffer_len;
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diff changeset
253
11621
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254 VTermState *state;
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255 VTermScreen *screen;
18064
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diff changeset
256
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257 int in_backspace;
11621
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258 };
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259
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diff changeset
260 struct VTermEncoding {
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261 void (*init) (VTermEncoding *enc, void *data);
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diff changeset
262 void (*decode)(VTermEncoding *enc, void *data,
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diff changeset
263 uint32_t cp[], int *cpi, int cplen,
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diff changeset
264 const char bytes[], size_t *pos, size_t len);
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265 };
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266
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diff changeset
267 typedef enum {
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268 ENC_UTF8,
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diff changeset
269 ENC_SINGLE_94
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270 } VTermEncodingType;
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271
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diff changeset
272 void *vterm_allocator_malloc(VTerm *vt, size_t size);
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273 void vterm_allocator_free(VTerm *vt, void *ptr);
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274
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275 void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len);
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276 void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args);
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277 void vterm_push_output_sprintf(VTerm *vt, const char *format, ...);
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278 void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...);
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279 void vterm_push_output_sprintf_str(VTerm *vt, unsigned char ctrl, int term, const char *fmt, ...);
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280
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281 void vterm_state_free(VTermState *state);
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282
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283 void vterm_state_newpen(VTermState *state);
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284 void vterm_state_resetpen(VTermState *state);
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285 void vterm_state_setpen(VTermState *state, const long args[], int argcount);
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286 int vterm_state_getpen(VTermState *state, long args[], int argcount);
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287 void vterm_state_savepen(VTermState *state, int save);
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288
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289 enum {
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290 C1_SS3 = 0x8f,
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291 C1_DCS = 0x90,
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292 C1_CSI = 0x9b,
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293 C1_ST = 0x9c,
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294 C1_OSC = 0x9d,
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295 };
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296
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297 void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...);
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298
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299 void vterm_screen_free(VTermScreen *screen);
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300
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301 VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation);
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302
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303 int vterm_unicode_width(uint32_t codepoint);
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304 int vterm_unicode_is_combining(uint32_t codepoint);
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305 int vterm_unicode_is_ambiguous(uint32_t codepoint);
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306 int vterm_get_special_pty_type(void);
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307
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308 #if (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 500) \
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309 || defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE)
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310 # undef VSNPRINTF
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311 # define VSNPRINTF vsnprintf
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312 # undef SNPRINTF
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313 #else
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314 # ifdef VSNPRINTF
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315 // Use a provided vsnprintf() function.
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316 int VSNPRINTF(char *str, size_t str_m, const char *fmt, va_list ap);
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317 # endif
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318 # ifdef SNPRINTF
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319 // Use a provided snprintf() function.
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320 int SNPRINTF(char *str, size_t str_m, const char *fmt, ...);
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321 # endif
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322 #endif
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323 #ifndef SNPRINTF
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324 # define SNPRINTF snprintf
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325 #endif
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326
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327
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328 #endif