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annotate src/libvterm/src/parser.c @ 11761:7846efd291d7 v8.0.0763

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patch 8.0.0763: libvterm can be improved commit https://github.com/vim/vim/commit/9cc5f75932b10f611d8b3f444d025053f9dbcab1 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 23 22:07:27 2017 +0200 patch 8.0.0763: libvterm can be improved Problem: Libvterm can be improved. Solution: Various small improvements, more comments.
author Christian Brabandt <cb@256bit.org>
date Sun, 23 Jul 2017 22:15:05 +0200
parents b8299e742f41
children 9f857e6310b6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
11621
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1 #include "vterm_internal.h"
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2
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3 #include <stdio.h>
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4 #include <string.h>
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5
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6 #define CSI_ARGS_MAX 16
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7 #define CSI_LEADER_MAX 16
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8 #define CSI_INTERMED_MAX 16
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9
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10 static void do_control(VTerm *vt, unsigned char control)
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11 {
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12 if(vt->parser_callbacks && vt->parser_callbacks->control)
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13 if((*vt->parser_callbacks->control)(control, vt->cbdata))
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14 return;
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15
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16 DEBUG_LOG1("libvterm: Unhandled control 0x%02x\n", control);
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17 }
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18
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19 static void do_string_csi(VTerm *vt, const char *args, size_t arglen, char command)
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20 {
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21 int i = 0;
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22
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23 int leaderlen = 0;
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24 char leader[CSI_LEADER_MAX];
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25 int argcount = 1; /* Always at least 1 arg */
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26 long csi_args[CSI_ARGS_MAX];
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27 int argi;
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28 int intermedlen = 0;
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29 char intermed[CSI_INTERMED_MAX];
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30
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31 /* Extract leader bytes 0x3c to 0x3f */
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32 for( ; i < (int)arglen; i++) {
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33 if(args[i] < 0x3c || args[i] > 0x3f)
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34 break;
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35 if(leaderlen < CSI_LEADER_MAX-1)
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36 leader[leaderlen++] = args[i];
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37 }
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38
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39 leader[leaderlen] = 0;
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40
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41 for( ; i < (int)arglen; i++)
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42 if(args[i] == 0x3b || args[i] == 0x3a) /* ; or : */
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43 argcount++;
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44
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45 /* TODO: Consider if these buffers should live in the VTerm struct itself */
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46 if(argcount > CSI_ARGS_MAX)
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47 argcount = CSI_ARGS_MAX;
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48
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49 for(argi = 0; argi < argcount; argi++)
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50 csi_args[argi] = CSI_ARG_MISSING;
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51
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52 argi = 0;
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53 for(i = leaderlen; i < (int)arglen && argi < argcount; i++) {
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54 switch(args[i]) {
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55 case 0x30: case 0x31: case 0x32: case 0x33: case 0x34:
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56 case 0x35: case 0x36: case 0x37: case 0x38: case 0x39:
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57 if(csi_args[argi] == CSI_ARG_MISSING)
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58 csi_args[argi] = 0;
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59 csi_args[argi] *= 10;
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60 csi_args[argi] += args[i] - '0';
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61 break;
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62 case 0x3a:
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63 csi_args[argi] |= CSI_ARG_FLAG_MORE;
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64 /* FALLTHROUGH */
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65 case 0x3b:
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66 argi++;
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67 break;
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68 default:
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69 goto done_leader;
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70 }
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71 }
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72 done_leader: ;
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73
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74 for( ; i < (int)arglen; i++) {
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75 if((args[i] & 0xf0) != 0x20)
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76 break;
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77
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78 if(intermedlen < CSI_INTERMED_MAX-1)
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79 intermed[intermedlen++] = args[i];
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80 }
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81
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82 intermed[intermedlen] = 0;
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83
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84 if(i < (int)arglen) {
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85 DEBUG_LOG2("libvterm: TODO unhandled CSI bytes \"%.*s\"\n", (int)(arglen - i), args + i);
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86 }
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87
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88 #if 0
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89 printf("Parsed CSI args %.*s as:\n", arglen, args);
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90 printf(" leader: %s\n", leader);
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91 for(argi = 0; argi < argcount; argi++) {
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92 printf(" %lu", CSI_ARG(csi_args[argi]));
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93 if(!CSI_ARG_HAS_MORE(csi_args[argi]))
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94 printf("\n");
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95 printf(" intermed: %s\n", intermed);
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96 }
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97 #endif
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98
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99 if(vt->parser_callbacks && vt->parser_callbacks->csi)
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100 if((*vt->parser_callbacks->csi)(leaderlen ? leader : NULL, csi_args, argcount, intermedlen ? intermed : NULL, command, vt->cbdata))
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101 return;
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102
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103 DEBUG_LOG3("libvterm: Unhandled CSI %.*s %c\n", (int)arglen, args, command);
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104 }
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105
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106 static void append_strbuffer(VTerm *vt, const char *str, size_t len)
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107 {
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108 if(len > vt->strbuffer_len - vt->strbuffer_cur) {
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109 len = vt->strbuffer_len - vt->strbuffer_cur;
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110 DEBUG_LOG1("Truncating strbuffer preserve to %zd bytes\n", len);
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111 }
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112
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113 if(len > 0) {
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114 strncpy(vt->strbuffer + vt->strbuffer_cur, str, len);
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115 vt->strbuffer_cur += len;
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116 }
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117 }
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118
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119 static size_t do_string(VTerm *vt, const char *str_frag, size_t len)
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120 {
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121 size_t eaten;
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122
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123 if(vt->strbuffer_cur) {
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124 if(str_frag)
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125 append_strbuffer(vt, str_frag, len);
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126
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127 str_frag = vt->strbuffer;
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128 len = vt->strbuffer_cur;
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129 }
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130 else if(!str_frag) {
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131 DEBUG_LOG("parser.c: TODO: No strbuffer _and_ no final fragment???\n");
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132 len = 0;
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133 }
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134
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135 vt->strbuffer_cur = 0;
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136
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parents:
diff changeset
137 switch(vt->parser_state) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
138 case NORMAL:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
139 if(vt->parser_callbacks && vt->parser_callbacks->text)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
140 if((eaten = (*vt->parser_callbacks->text)(str_frag, len, vt->cbdata)))
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
141 return eaten;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
142
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
143 DEBUG_LOG1("libvterm: Unhandled text (%zu chars)\n", len);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
144 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
145
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
146 case ESC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
147 if(len == 1 && str_frag[0] >= 0x40 && str_frag[0] < 0x60) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
148 /* C1 emulations using 7bit clean */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
149 /* ESC 0x40 == 0x80 */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
150 do_control(vt, str_frag[0] + 0x40);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
151 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
152 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
153
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
154 if(vt->parser_callbacks && vt->parser_callbacks->escape)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
155 if((*vt->parser_callbacks->escape)(str_frag, len, vt->cbdata))
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
156 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
157
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
158 DEBUG_LOG1("libvterm: Unhandled escape ESC 0x%02x\n", str_frag[len-1]);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
159 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
160
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
161 case CSI:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
162 do_string_csi(vt, str_frag, len - 1, str_frag[len - 1]);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
163 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
164
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
165 case OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
166 if(vt->parser_callbacks && vt->parser_callbacks->osc)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
167 if((*vt->parser_callbacks->osc)(str_frag, len, vt->cbdata))
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
168 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
169
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
170 DEBUG_LOG2("libvterm: Unhandled OSC %.*s\n", (int)len, str_frag);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
171 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
172
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
173 case DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
174 if(vt->parser_callbacks && vt->parser_callbacks->dcs)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
175 if((*vt->parser_callbacks->dcs)(str_frag, len, vt->cbdata))
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
176 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
177
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
178 DEBUG_LOG2("libvterm: Unhandled DCS %.*s\n", (int)len, str_frag);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
179 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
180
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
181 case ESC_IN_OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
182 case ESC_IN_DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
183 DEBUG_LOG("libvterm: ARGH! Should never do_string() in ESC_IN_{OSC,DCS}\n");
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
184 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
185 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
186
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
187 return 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
188 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
189
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
190 size_t vterm_input_write(VTerm *vt, const char *bytes, size_t len)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
191 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
192 size_t pos = 0;
11761
7846efd291d7 patch 8.0.0763: libvterm can be improved
Christian Brabandt <cb@256bit.org>
parents: 11621
diff changeset
193 const char *string_start = NULL; /* init to avoid gcc warning */
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
194
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
195 switch(vt->parser_state) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
196 case NORMAL:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
197 string_start = NULL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
198 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
199 case ESC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
200 case ESC_IN_OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
201 case ESC_IN_DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
202 case CSI:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
203 case OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
204 case DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
205 string_start = bytes;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
206 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
207 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
208
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
209 #define ENTER_STRING_STATE(st) do { vt->parser_state = st; string_start = bytes + pos + 1; } while(0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
210 #define ENTER_NORMAL_STATE() do { vt->parser_state = NORMAL; string_start = NULL; } while(0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
211
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
212 for( ; pos < len; pos++) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
213 unsigned char c = bytes[pos];
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
214
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
215 if(c == 0x00 || c == 0x7f) { /* NUL, DEL */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
216 if(vt->parser_state != NORMAL) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
217 append_strbuffer(vt, string_start, bytes + pos - string_start);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
218 string_start = bytes + pos + 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
219 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
220 continue;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
221 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
222 if(c == 0x18 || c == 0x1a) { /* CAN, SUB */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
223 ENTER_NORMAL_STATE();
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
224 continue;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
225 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
226 else if(c == 0x1b) { /* ESC */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
227 if(vt->parser_state == OSC)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
228 vt->parser_state = ESC_IN_OSC;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
229 else if(vt->parser_state == DCS)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
230 vt->parser_state = ESC_IN_DCS;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
231 else
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
232 ENTER_STRING_STATE(ESC);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
233 continue;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
234 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
235 else if(c == 0x07 && /* BEL, can stand for ST in OSC or DCS state */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
236 (vt->parser_state == OSC || vt->parser_state == DCS)) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
237 /* fallthrough */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
238 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
239 else if(c < 0x20) { /* other C0 */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
240 if(vt->parser_state != NORMAL)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
241 append_strbuffer(vt, string_start, bytes + pos - string_start);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
242 do_control(vt, c);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
243 if(vt->parser_state != NORMAL)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
244 string_start = bytes + pos + 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
245 continue;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
246 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
247 /* else fallthrough */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
248
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
249 switch(vt->parser_state) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
250 case ESC_IN_OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
251 case ESC_IN_DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
252 if(c == 0x5c) { /* ST */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
253 switch(vt->parser_state) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
254 case ESC_IN_OSC: vt->parser_state = OSC; break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
255 case ESC_IN_DCS: vt->parser_state = DCS; break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
256 default: break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
257 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
258 do_string(vt, string_start, bytes + pos - string_start - 1);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
259 ENTER_NORMAL_STATE();
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
260 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
261 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
262 vt->parser_state = ESC;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
263 string_start = bytes + pos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
264 /* else fallthrough */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
265
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
266 case ESC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
267 switch(c) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
268 case 0x50: /* DCS */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
269 ENTER_STRING_STATE(DCS);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
270 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
271 case 0x5b: /* CSI */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
272 ENTER_STRING_STATE(CSI);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
273 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
274 case 0x5d: /* OSC */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
275 ENTER_STRING_STATE(OSC);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
276 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
277 default:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
278 if(c >= 0x30 && c < 0x7f) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
279 /* +1 to pos because we want to include this command byte as well */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
280 do_string(vt, string_start, bytes + pos - string_start + 1);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
281 ENTER_NORMAL_STATE();
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
282 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
283 else if(c >= 0x20 && c < 0x30) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
284 /* intermediate byte */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
285 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
286 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
287 DEBUG_LOG1("TODO: Unhandled byte %02x in Escape\n", c);
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 break;
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 case CSI:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
293 if(c >= 0x40 && c <= 0x7f) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
294 /* +1 to pos because we want to include this command byte as well */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
295 do_string(vt, string_start, bytes + pos - string_start + 1);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
296 ENTER_NORMAL_STATE();
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
297 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
298 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
299
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
300 case OSC:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
301 case DCS:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
302 if(c == 0x07 || (c == 0x9c && !vt->mode.utf8)) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
303 do_string(vt, string_start, bytes + pos - string_start);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
304 ENTER_NORMAL_STATE();
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
305 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
306 break;
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 case NORMAL:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
309 if(c >= 0x80 && c < 0xa0 && !vt->mode.utf8) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
310 switch(c) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
311 case 0x90: /* DCS */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
312 ENTER_STRING_STATE(DCS);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
313 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
314 case 0x9b: /* CSI */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
315 ENTER_STRING_STATE(CSI);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
316 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
317 case 0x9d: /* OSC */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
318 ENTER_STRING_STATE(OSC);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
319 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
320 default:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
321 do_control(vt, c);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
322 break;
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 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
326 size_t text_eaten = do_string(vt, bytes + pos, len - pos);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
327
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
328 if(text_eaten == 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
329 string_start = bytes + pos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
330 goto pause;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
331 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
332
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
333 pos += (text_eaten - 1); /* we'll ++ it again in a moment */
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
334 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
335 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
336 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
337 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
338
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
339 pause:
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
340 if(string_start && string_start < len + bytes) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
341 size_t remaining = len - (string_start - bytes);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
342 append_strbuffer(vt, string_start, remaining);
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 return len;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
346 }