Mercurial > hg > index.cgi
annotate lwasm/macro.c @ 536:33a59e232a5b
Fix basic output target to keep lines below 249 characters
The line length limiter in the basic output was not properly moving to the
next before 249 characters, which is the limit Color Basic can read in an
ASCII basic program. Changed the line limiter to 240 from 247 to account
for a possible 5 digit number plus a comma and just a bit of extra breathing
space.
author | William Astle <lost@l-w.ca> |
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date | Thu, 16 Jun 2022 13:55:34 -0600 |
parents | 4536f0e61425 |
children | bbc600db5016 |
rev | line source |
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1 /* |
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2 macro.c |
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3 Copyright © 2008 William Astle |
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4 |
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5 This file is part of LWASM. |
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6 |
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7 LWASM is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 Contains stuff associated with macro processing |
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21 */ |
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22 |
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23 #include <ctype.h> |
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24 #include <stdlib.h> |
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25 #include <string.h> |
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26 #include <stdio.h> |
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27 |
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28 #include <lw_alloc.h> |
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29 #include <lw_string.h> |
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30 |
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31 #include "lwasm.h" |
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32 #include "input.h" |
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33 #include "instab.h" |
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34 |
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35 PARSEFUNC(pseudo_parse_macro) |
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36 { |
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37 macrotab_t *m; |
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38 char *t; |
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39 char tc; |
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40 |
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41 l -> len = 0; |
219 | 42 l -> hideline = 1; |
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43 if (as -> skipcond) |
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44 { |
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45 as -> skipmacro = 1; |
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46 skip_operand(p); |
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47 return; |
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48 } |
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49 |
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50 if (as -> inmacro) |
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51 { |
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52 lwasm_register_error(as, l, E_MACRO_RECURSE); |
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53 return; |
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54 } |
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55 |
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56 if (!(l -> sym)) |
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57 { |
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58 lwasm_register_error(as, l, E_MACRO_NONAME); |
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59 return; |
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60 } |
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61 |
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62 for (m = as -> macros; m; m = m -> next) |
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63 { |
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64 if (!strcasecmp(m -> name, l -> sym)) |
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65 break; |
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66 } |
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67 if (m) |
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68 { |
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69 lwasm_register_error(as, l, E_MACRO_DUPE); |
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70 return; |
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71 } |
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72 |
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73 m = lw_alloc(sizeof(macrotab_t)); |
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74 m -> name = lw_strdup(l -> sym); |
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75 m -> next = as -> macros; |
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76 m -> lines = NULL; |
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77 m -> numlines = 0; |
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78 m -> flags = 0; |
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79 m -> definedat = l; |
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80 as -> macros = m; |
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81 |
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82 t = *p; |
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83 while (**p && !isspace(**p)) |
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84 (*p)++; |
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85 tc = **p; |
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86 /* ignore unknown flags */ |
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87 if (strcasecmp(t, "noexpand") == 0) |
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88 m -> flags |= macro_noexpand; |
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89 **p = tc; |
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90 as -> inmacro = 1; |
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91 } |
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92 |
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93 PARSEFUNC(pseudo_parse_endm) |
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94 { |
219 | 95 l -> hideline = 1; |
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96 l -> len = 0; |
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97 |
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98 if (as -> skipcond) |
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99 { |
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100 as -> skipmacro = 0; |
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101 return; |
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102 } |
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103 |
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104 if (!as -> inmacro) |
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105 { |
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106 lwasm_register_error(as, l, E_MACRO_ENDM); |
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107 return; |
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108 } |
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109 |
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110 as -> inmacro = 0; |
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111 |
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112 // a macro definition counts as a context break for local symbols |
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113 as -> context = lwasm_next_context(as); |
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114 } |
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115 |
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116 // the current macro will ALWAYS be the first one in the table |
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117 int add_macro_line(asmstate_t *as, char *optr) |
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118 { |
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119 if (!as -> inmacro) |
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120 return 0; |
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121 |
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122 as -> macros -> lines = lw_realloc(as -> macros -> lines, sizeof(char *) * (as -> macros -> numlines + 1)); |
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123 as -> macros -> lines[as -> macros -> numlines] = lw_strdup(optr); |
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124 as -> macros -> numlines += 1; |
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125 return 1; |
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126 } |
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127 |
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128 void macro_add_to_buff(char **buff, int *loc, int *len, char c) |
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129 { |
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130 if (*loc == *len) |
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131 { |
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132 *buff = lw_realloc(*buff, *len + 32); |
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133 *len += 32; |
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134 } |
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135 (*buff)[(*loc)++] = c; |
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136 } |
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137 |
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138 // this is just like a regular operation function |
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139 /* |
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140 macro args are referenced by "\n" where 1 <= n <= 9 |
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141 or by "\{n}"; a \ can be included by writing \\ |
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142 a comma separates argument but one can be included with "\," |
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143 whitespace ends argument list but can be included with "\ " or the like |
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144 |
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145 */ |
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146 int expand_macro(asmstate_t *as, line_t *l, char **p, char *opc) |
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147 { |
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148 int lc; |
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149 line_t *cl; //, *nl; |
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150 int oldcontext; |
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151 macrotab_t *m; |
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152 |
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153 char **args = NULL; // macro arguments |
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154 int nargs = 0; // number of arguments |
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155 |
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156 char *p2, *p3; |
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157 |
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158 int bloc, blen; |
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159 char *linebuff; |
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160 |
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161 for (m = as -> macros; m; m = m -> next) |
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162 { |
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163 if (!strcasecmp(opc, m -> name)) |
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164 break; |
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165 } |
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166 // signal no macro expansion |
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167 if (!m) |
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168 return -1; |
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169 |
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170 // save current symbol context for after macro expansion |
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171 oldcontext = as -> context; |
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172 |
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173 cl = l; |
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174 |
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175 as -> context = lwasm_next_context(as); |
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176 |
39 | 177 while (**p && !isspace(**p) && **p) |
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178 { |
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179 p2 = *p; |
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180 while (*p2 && !isspace(*p2) && *p2 != ',') |
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181 { |
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182 if (*p2 == '\\') |
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183 { |
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184 if (p2[1]) |
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185 p2++; |
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186 } |
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187 p2++; |
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188 } |
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189 |
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190 // have arg here |
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191 args = lw_realloc(args, sizeof(char *) * (nargs + 1)); |
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192 args[nargs] = lw_alloc(p2 - *p + 1); |
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193 args[nargs][p2 - *p] = '\0'; |
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194 memcpy(args[nargs], *p, p2 - *p); |
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195 *p = p2; |
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196 |
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197 // now collapse out "\" characters |
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198 for (p3 = p2 = args[nargs]; *p2; p2++, p3++) |
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199 { |
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200 if (*p2 == '\\' && p2[1]) |
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201 { |
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202 p2++; |
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203 } |
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204 *p3 = *p2; |
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205 } |
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206 *p3 = '\0'; |
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207 |
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208 nargs++; |
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209 if (**p == ',') |
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210 (*p)++; |
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211 } |
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212 |
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213 |
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214 // now create a string for the macro |
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215 // and push it into the front of the input stack |
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216 bloc = blen = 0; |
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217 linebuff = NULL; |
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218 |
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219 if (m -> flags & macro_noexpand) |
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220 { |
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221 char ctcbuf[100]; |
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222 char *p; |
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223 snprintf(ctcbuf, 100, "\001\001SETNOEXPANDSTART\n"); |
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224 for (p = ctcbuf; *p; p++) |
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225 macro_add_to_buff(&linebuff, &bloc, &blen, *p); |
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226 } |
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227 |
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228 |
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229 for (lc = 0; lc < m -> numlines; lc++) |
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230 { |
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231 for (p2 = m -> lines[lc]; *p2; p2++) |
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232 { |
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233 if (*p2 == '\\' && p2[1] == '*') |
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234 { |
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235 int n; |
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236 /* all arguments */ |
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237 for (n = 0; n < nargs; n++) |
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238 { |
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239 for (p3 = args[n]; *p3; p3++) |
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240 { |
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241 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
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242 } |
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243 if (n != (nargs -1)) |
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244 { |
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245 macro_add_to_buff(&linebuff, &bloc, &blen, ','); |
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246 } |
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Added a \* macro parameter expansion to include all macro parameters
lost@l-w.ca
parents:
49
diff
changeset
|
247 } |
e2728091b75a
Added a \* macro parameter expansion to include all macro parameters
lost@l-w.ca
parents:
49
diff
changeset
|
248 p2++; |
e2728091b75a
Added a \* macro parameter expansion to include all macro parameters
lost@l-w.ca
parents:
49
diff
changeset
|
249 } |
528
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
250 else if (*p2 == '\\' && p2[1] == '#') |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
251 { |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
252 char ctcbuf[25]; |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
253 snprintf(ctcbuf, 25, "%d", nargs); |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
254 for (p3 = ctcbuf; *p3; p3++) |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
255 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
256 p2++; |
4536f0e61425
Add \# macro expansion which expands to the number of arguments
William Astle <lost@l-w.ca>
parents:
524
diff
changeset
|
257 } |
57
e2728091b75a
Added a \* macro parameter expansion to include all macro parameters
lost@l-w.ca
parents:
49
diff
changeset
|
258 else if (*p2 == '\\' && isdigit(p2[1])) |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
259 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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260 int n; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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261 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
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262 p2++; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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263 n = *p2 - '0'; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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264 if (n == 0) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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265 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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266 for (p3 = m -> name; *p3; p3++) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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267 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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268 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
269 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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270 if (n < 1 || n > nargs) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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271 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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272 for (p3 = args[n - 1]; *p3; p3++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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273 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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274 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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275 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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276 else if (*p2 == '{') |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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277 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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278 int n = 0, n2; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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279 p2++; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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280 while (*p2 && isdigit(*p2)) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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281 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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282 n2 = *p2 - '0'; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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283 if (n2 < 0 || n2 > 9) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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284 n2 = 0; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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285 n = n * 10 + n2; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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286 p2++; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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287 } |
524
a4a58c4c7a41
Fix parsing {} macro argument expansion sequences
William Astle <lost@l-w.ca>
parents:
435
diff
changeset
|
288 // compensate for the autoinc on p2 if no } is present |
a4a58c4c7a41
Fix parsing {} macro argument expansion sequences
William Astle <lost@l-w.ca>
parents:
435
diff
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|
289 // to prevent overconsuming input characters |
a4a58c4c7a41
Fix parsing {} macro argument expansion sequences
William Astle <lost@l-w.ca>
parents:
435
diff
changeset
|
290 if (*p2 != '}') |
a4a58c4c7a41
Fix parsing {} macro argument expansion sequences
William Astle <lost@l-w.ca>
parents:
435
diff
changeset
|
291 p2--; |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
292 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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293 if (n == 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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294 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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295 for (p3 = m -> name; *p3; p3++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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296 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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297 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
298 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
299 if (n < 1 || n > nargs) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
300 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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301 for (p3 = args[n - 1]; *p3; p3++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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302 macro_add_to_buff(&linebuff, &bloc, &blen, *p3); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
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303 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
304 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
305 else |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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306 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
307 macro_add_to_buff(&linebuff, &bloc, &blen, *p2); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
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|
308 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
309 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
310 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
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|
311 macro_add_to_buff(&linebuff, &bloc, &blen, '\n'); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
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|
312 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
313 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
314 |
49
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
315 if (m -> flags & macro_noexpand) |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
316 { |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
317 char ctcbuf[100]; |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
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diff
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|
318 char *p; |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
319 snprintf(ctcbuf, 100, "\001\001SETNOEXPANDEND\n"); |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
320 for (p = ctcbuf; *p; p++) |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
321 macro_add_to_buff(&linebuff, &bloc, &blen, *p); |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
322 } |
bd8b3fbd1e28
Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents:
40
diff
changeset
|
323 |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
324 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
325 char ctcbuf[100]; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
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|
326 char *p; |
40
d96037ea0b80
Fixed line number counting being broken by macros
lost@l-w.ca
parents:
39
diff
changeset
|
327 snprintf(ctcbuf, 100, "\001\001SETCONTEXT %d\n\001\001SETLINENO %d\n", oldcontext, cl -> lineno + 1); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
328 for (p = ctcbuf; *p; p++) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
329 macro_add_to_buff(&linebuff, &bloc, &blen, *p); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
330 } |
39 | 331 macro_add_to_buff(&linebuff, &bloc, &blen, 0); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
332 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
333 // push the macro into the front of the stream |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
334 input_openstring(as, opc, linebuff); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
335 lw_free(linebuff); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
336 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
337 // clean up |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
338 if (args) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
339 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
340 while (nargs) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
341 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
342 lw_free(args[--nargs]); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
343 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
344 lw_free(args); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
345 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
346 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
347 // indicate a macro was expanded |
219 | 348 l -> hideline = 1; |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
349 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
350 } |