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annotate src/libvterm/src/vterm_internal.h @ 20496:747a270eb1db v8.2.0802

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patch 8.2.0802: libvterm code lags behind the upstream version Commit: https://github.com/vim/vim/commit/d863728913801c8fa6d633f6580edfcada533fd0 Author: Bram Moolenaar <Bram@vim.org> Date: Wed May 20 18:41:41 2020 +0200 patch 8.2.0802: libvterm code lags behind the upstream version Problem: Libvterm code lags behind the upstream version. Solution: Include revisions 759 - 762.
author Bram Moolenaar <Bram@vim.org>
date Wed, 20 May 2020 18:45:04 +0200
parents 1d595fada804
children 55a373a243c0
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 # define UNUSED __attribute__((unused))
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11 #else
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12 # define INTERNAL
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13 # define UNUSED
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14 #endif
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15
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16 #ifdef DEBUG
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17 # define DEBUG_LOG(s) fprintf(stderr, s)
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18 # define DEBUG_LOG1(s, a) fprintf(stderr, s, a)
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19 # define DEBUG_LOG2(s, a, b) fprintf(stderr, s, a, b)
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20 # define DEBUG_LOG3(s, a, b, c) fprintf(stderr, s, a, b, c)
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21 #else
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22 # define DEBUG_LOG(s)
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23 # define DEBUG_LOG1(s, a)
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24 # define DEBUG_LOG2(s, a, b)
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25 # define DEBUG_LOG3(s, a, b, c)
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26 #endif
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27
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28 #define ESC_S "\x1b"
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29
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30 #define INTERMED_MAX 16
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31
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32 #define CSI_ARGS_MAX 16
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33 #define CSI_LEADER_MAX 16
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35 #define BUFIDX_PRIMARY 0
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36 #define BUFIDX_ALTSCREEN 1
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37
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38 typedef struct VTermEncoding VTermEncoding;
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39
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40 typedef struct {
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41 VTermEncoding *enc;
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42
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43 // This size should be increased if required by other stateful encodings
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44 char data[4*sizeof(uint32_t)];
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45 } VTermEncodingInstance;
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46
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47 struct VTermPen
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48 {
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49 VTermColor fg;
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50 VTermColor bg;
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51 unsigned int bold:1;
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52 unsigned int underline:2;
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53 unsigned int italic:1;
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54 unsigned int blink:1;
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55 unsigned int reverse:1;
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56 unsigned int conceal:1;
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57 unsigned int strike:1;
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58 unsigned int font:4; // To store 0-9
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59 };
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60
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61 int vterm_color_equal(VTermColor a, VTermColor b);
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62
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63 #if defined(DEFINE_INLINES) || USE_INLINE
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64 INLINE int vterm_color_equal(VTermColor a, VTermColor b)
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65 {
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66 return a.red == b.red && a.green == b.green && a.blue == b.blue;
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67 }
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68 #endif
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69
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70 struct VTermState
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71 {
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72 VTerm *vt;
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73
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74 const VTermStateCallbacks *callbacks;
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75 void *cbdata;
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76
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77 const VTermStateFallbacks *fallbacks;
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78 void *fbdata;
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79
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80 int rows;
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81 int cols;
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82
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83 // Current cursor position
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84 VTermPos pos;
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85
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86 int at_phantom; // True if we're on the "81st" phantom column to defer a wraparound
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87
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88 int scrollregion_top;
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89 int scrollregion_bottom; // -1 means unbounded
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90 #define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows)
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91 int scrollregion_left;
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92 #define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0)
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93 int scrollregion_right; // -1 means unbounded
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94 #define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols)
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95
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96 // Bitvector of tab stops
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97 unsigned char *tabstops;
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98
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99 /* Primary and Altscreen; lineinfos[1] is lazily allocated as needed */
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100 VTermLineInfo *lineinfos[2];
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101
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102 /* lineinfo will == lineinfos[0] or lineinfos[1], depending on altscreen */
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103 VTermLineInfo *lineinfo;
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104 #define ROWWIDTH(state,row) ((state)->lineinfo[(row)].doublewidth ? ((state)->cols / 2) : (state)->cols)
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105 #define THISROWWIDTH(state) ROWWIDTH(state, (state)->pos.row)
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106
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107 // Mouse state
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108 int mouse_col, mouse_row;
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109 int mouse_buttons;
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110 int mouse_flags;
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111
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112 enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol;
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113
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114 // Last glyph output, for Unicode recombining purposes
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115 uint32_t *combine_chars;
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116 size_t combine_chars_size; // Number of ELEMENTS in the above
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117 int combine_width; // The width of the glyph above
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118 VTermPos combine_pos; // Position before movement
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119
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120 struct {
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121 unsigned int keypad:1;
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122 unsigned int cursor:1;
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123 unsigned int autowrap:1;
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124 unsigned int insert:1;
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125 unsigned int newline:1;
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126 unsigned int cursor_visible:1;
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127 unsigned int cursor_blink:1;
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128 unsigned int cursor_shape:2;
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129 unsigned int alt_screen:1;
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130 unsigned int origin:1;
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131 unsigned int screen:1;
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132 unsigned int leftrightmargin:1;
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133 unsigned int bracketpaste:1;
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134 unsigned int report_focus:1;
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135 unsigned int modify_other_keys:1;
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136 } mode;
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137
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138 VTermEncodingInstance encoding[4], encoding_utf8;
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139 int gl_set, gr_set, gsingle_set;
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140
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141 struct VTermPen pen;
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142
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143 VTermColor default_fg;
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144 VTermColor default_bg;
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145 VTermColor colors[16]; // Store the 8 ANSI and the 8 ANSI high-brights only
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146
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147 int fg_index;
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148 int bg_index;
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149 int bold_is_highbright;
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150
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151 unsigned int protected_cell : 1;
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152
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153 // Saved state under DEC mode 1048/1049
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154 struct {
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155 VTermPos pos;
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156 struct VTermPen pen;
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157
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158 struct {
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159 unsigned int cursor_visible:1;
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160 unsigned int cursor_blink:1;
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161 unsigned int cursor_shape:2;
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162 } mode;
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163 } saved;
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164
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165 /* Temporary state for DECRQSS parsing */
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166 union {
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167 char decrqss[4];
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168 } tmp;
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169 };
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170
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171 struct VTerm
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172 {
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173 VTermAllocatorFunctions *allocator;
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174 void *allocdata;
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175
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176 int rows;
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177 int cols;
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178
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179 struct {
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180 unsigned int utf8:1;
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181 unsigned int ctrl8bit:1;
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182 } mode;
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183
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184 struct {
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185 enum VTermParserState {
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186 NORMAL,
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187 CSI_LEADER,
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188 CSI_ARGS,
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189 CSI_INTERMED,
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190 OSC_COMMAND,
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191 DCS_COMMAND,
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192 // below here are the "string states"
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193 OSC,
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194 DCS,
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195 } state;
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196
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197 unsigned int in_esc : 1;
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198
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199 int intermedlen;
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200 char intermed[INTERMED_MAX];
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201
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202 union {
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203 struct {
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204 int leaderlen;
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205 char leader[CSI_LEADER_MAX];
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206
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207 int argi;
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208 long args[CSI_ARGS_MAX];
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209 } csi;
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210 struct {
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211 int command;
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212 } osc;
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213 struct {
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214 int commandlen;
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215 char command[CSI_LEADER_MAX];
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216 } dcs;
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217 } v;
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218
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219 const VTermParserCallbacks *callbacks;
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220 void *cbdata;
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221
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222 int string_initial;
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223 } parser;
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224
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225 // len == malloc()ed size; cur == number of valid bytes
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226
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227 VTermOutputCallback *outfunc;
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228 void *outdata;
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229
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230 char *outbuffer;
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231 size_t outbuffer_len;
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232 size_t outbuffer_cur;
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233
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234 char *tmpbuffer;
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235 size_t tmpbuffer_len;
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236
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237 VTermState *state;
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238 VTermScreen *screen;
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239
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240 int in_backspace;
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241 };
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242
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243 struct VTermEncoding {
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244 void (*init) (VTermEncoding *enc, void *data);
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245 void (*decode)(VTermEncoding *enc, void *data,
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246 uint32_t cp[], int *cpi, int cplen,
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247 const char bytes[], size_t *pos, size_t len);
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248 };
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249
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250 typedef enum {
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251 ENC_UTF8,
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252 ENC_SINGLE_94
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253 } VTermEncodingType;
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254
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255 void *vterm_allocator_malloc(VTerm *vt, size_t size);
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256 void vterm_allocator_free(VTerm *vt, void *ptr);
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257
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258 void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len);
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259 void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args);
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260 void vterm_push_output_sprintf(VTerm *vt, const char *format, ...);
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261 void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...);
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262 void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...);
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263
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264 void vterm_state_free(VTermState *state);
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265
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266 void vterm_state_newpen(VTermState *state);
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267 void vterm_state_resetpen(VTermState *state);
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268 void vterm_state_setpen(VTermState *state, const long args[], int argcount);
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269 int vterm_state_getpen(VTermState *state, long args[], int argcount);
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270 void vterm_state_savepen(VTermState *state, int save);
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271
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272 enum {
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273 C1_SS3 = 0x8f,
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274 C1_DCS = 0x90,
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275 C1_CSI = 0x9b,
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276 C1_ST = 0x9c,
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277 C1_OSC = 0x9d,
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278 };
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279
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280 void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...);
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281
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282 void vterm_screen_free(VTermScreen *screen);
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283
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284 VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation);
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285
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286 int vterm_unicode_width(uint32_t codepoint);
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287 int vterm_unicode_is_combining(uint32_t codepoint);
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288 int vterm_unicode_is_ambiguous(uint32_t codepoint);
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289 int vterm_get_special_pty_type(void);
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290
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291 #if (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 500) \
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292 || defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE)
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293 # undef VSNPRINTF
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294 # define VSNPRINTF vsnprintf
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295 # undef SNPRINTF
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296 #else
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297 # ifdef VSNPRINTF
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298 // Use a provided vsnprintf() function.
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299 int VSNPRINTF(char *str, size_t str_m, const char *fmt, va_list ap);
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300 # endif
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301 # ifdef SNPRINTF
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302 // Use a provided snprintf() function.
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303 int SNPRINTF(char *str, size_t str_m, const char *fmt, ...);
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304 # endif
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305 #endif
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306 #ifndef SNPRINTF
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307 # define SNPRINTF snprintf
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308 #endif
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309
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310
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311 #endif