annotate macro.c @ 125:4e98022c3ce2

Added tag release-0.2 for changeset 3ad1cd80f5a0
author David A. Holland
date Tue, 11 Jun 2013 19:14:17 -0400
parents c13f36775fe8
children 1cda505ddc78
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1 /*-
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2 * Copyright (c) 2010, 2013 The NetBSD Foundation, Inc.
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3 * All rights reserved.
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4 *
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5 * This code is derived from software contributed to The NetBSD Foundation
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6 * by David A. Holland.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions
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10 * are met:
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11 * 1. Redistributions of source code must retain the above copyright
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12 * notice, this list of conditions and the following disclaimer.
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13 * 2. Redistributions in binary form must reproduce the above copyright
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14 * notice, this list of conditions and the following disclaimer in the
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15 * documentation and/or other materials provided with the distribution.
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16 *
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17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 * POSSIBILITY OF SUCH DAMAGE.
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28 */
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29
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30 #include <stdint.h>
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31 #include <stdlib.h>
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32 #include <string.h>
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33
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34 #include "array.h"
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35 #include "mode.h"
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36 #include "place.h"
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37 #include "macro.h"
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38 #include "output.h"
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39
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40 struct expansionitem {
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41 bool isstring;
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42 union {
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43 char *string;
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44 unsigned param;
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45 };
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46 };
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47 DECLARRAY(expansionitem, static UNUSED);
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48 DEFARRAY(expansionitem, static);
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49
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50 struct macro {
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51 struct place defplace;
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52 struct place expansionplace;
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53 unsigned hash;
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54 char *name;
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55 bool hasparams;
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56 struct stringarray params;
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57 struct expansionitemarray expansion;
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58 bool inuse;
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59 };
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60 DECLARRAY(macro, static UNUSED);
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61 DEFARRAY(macro, static);
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62 DECLARRAY(macroarray, static UNUSED);
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63 DEFARRAY(macroarray, static);
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64
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65 static struct macroarrayarray macros;
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66 static unsigned total_macros;
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67 static unsigned hashmask;
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68
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69 ////////////////////////////////////////////////////////////
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70 // macro structure ops
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71
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72 static
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73 struct expansionitem *
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74 expansionitem_create_string(const char *string)
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75 {
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76 struct expansionitem *ei;
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77
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78 ei = domalloc(sizeof(*ei));
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79 ei->isstring = true;
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80 ei->string = dostrdup(string);
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81 return ei;
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82 }
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83
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84 static
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85 struct expansionitem *
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86 expansionitem_create_stringlen(const char *string, size_t len)
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87 {
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88 struct expansionitem *ei;
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89
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90 ei = domalloc(sizeof(*ei));
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91 ei->isstring = true;
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92 ei->string = dostrndup(string, len);
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93 return ei;
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94 }
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95
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96 static
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97 struct expansionitem *
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98 expansionitem_create_param(unsigned param)
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99 {
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100 struct expansionitem *ei;
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101
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102 ei = domalloc(sizeof(*ei));
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103 ei->isstring = false;
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104 ei->param = param;
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105 return ei;
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106 }
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107
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108 static
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109 void
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110 expansionitem_destroy(struct expansionitem *ei)
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111 {
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112 if (ei->isstring) {
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113 dostrfree(ei->string);
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114 }
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115 dofree(ei, sizeof(*ei));
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116 }
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117
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118 static
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119 bool
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120 expansionitem_eq(const struct expansionitem *ei1,
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121 const struct expansionitem *ei2)
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122 {
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123 if (ei1->isstring != ei2->isstring) {
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124 return false;
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125 }
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126 if (ei1->isstring) {
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127 if (strcmp(ei1->string, ei2->string) != 0) {
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128 return false;
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129 }
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130 } else {
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131 if (ei1->param != ei2->param) {
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132 return false;
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133 }
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134 }
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135 return true;
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136 }
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137
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138 static
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139 struct macro *
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140 macro_create(struct place *p1, const char *name, unsigned hash,
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141 struct place *p2)
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142 {
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143 struct macro *m;
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144
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145 m = domalloc(sizeof(*m));
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146 m->defplace = *p1;
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147 m->expansionplace = *p2;
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148 m->hash = hash;
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149 m->name = dostrdup(name);
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150 m->hasparams = false;
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151 stringarray_init(&m->params);
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152 expansionitemarray_init(&m->expansion);
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153 m->inuse = false;
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154 return m;
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155 }
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156
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157 DESTROYALL_ARRAY(expansionitem, );
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158
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159 static
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160 void
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161 macro_destroy(struct macro *m)
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162 {
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163 expansionitemarray_destroyall(&m->expansion);
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164 expansionitemarray_cleanup(&m->expansion);
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165 dostrfree(m->name);
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166 dofree(m, sizeof(*m));
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167 }
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168
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169 static
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170 bool
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171 macro_eq(const struct macro *m1, const struct macro *m2)
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172 {
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173 unsigned num1, num2, i;
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174 struct expansionitem *ei1, *ei2;
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175 const char *p1, *p2;
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176
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177 if (strcmp(m1->name, m2->name) != 0) {
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178 return false;
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179 }
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180
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181 if (m1->hasparams != m2->hasparams) {
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182 return false;
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183 }
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184
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185 num1 = expansionitemarray_num(&m1->expansion);
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186 num2 = expansionitemarray_num(&m2->expansion);
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187 if (num1 != num2) {
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188 return false;
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189 }
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190
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191 for (i=0; i<num1; i++) {
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192 ei1 = expansionitemarray_get(&m1->expansion, i);
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193 ei2 = expansionitemarray_get(&m2->expansion, i);
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194 if (!expansionitem_eq(ei1, ei2)) {
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195 return false;
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196 }
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197 }
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198
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199 num1 = stringarray_num(&m1->params);
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200 num2 = stringarray_num(&m2->params);
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201 if (num1 != num2) {
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202 return false;
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203 }
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204
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205 for (i=0; i<num1; i++) {
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206 p1 = stringarray_get(&m1->params, i);
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207 p2 = stringarray_get(&m2->params, i);
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208 if (strcmp(p1, p2) != 0) {
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209 return false;
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210 }
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211 }
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212 return true;
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213 }
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214
17
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215 ////////////////////////////////////////////////////////////
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216 // macro table
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217
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218 /*
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219 * Unless I've screwed up, this is something called Fletcher's Checksum
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220 * that showed up in Dr. Dobbs in, according to my notes, May 1992. The
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221 * implementation is new.
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222 */
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223 static
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224 unsigned
19
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diff changeset
225 hashfunc(const char *s, size_t len)
17
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226 {
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227 uint16_t x1, x2, a;
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228 size_t i;
17
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229
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230 x1 = (uint16_t) (len >> 16);
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231 x2 = (uint16_t) (len);
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232 if (x1==0) {
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233 x1++;
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234 }
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235 if (x2==0) {
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236 x2++;
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237 }
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238
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239 for (i=0; i<len; i+=2) {
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240 if (i==len-1) {
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241 a = (unsigned char)s[i];
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242 /* don't run off the end of the array */
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243 }
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244 else {
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245 a = (unsigned char)s[i] +
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246 ((uint16_t)(unsigned char)s[i+1] << 8);
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247 }
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248 x1 += a;
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249 if (x1 < a) {
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250 x1++;
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251 }
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252 x2 += x1;
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253 if (x2 < x1) {
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254 x2++;
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255 }
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256 }
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257
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258 x1 ^= 0xffff;
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259 x2 ^= 0xffff;
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260 return ((uint32_t)x2)*65535U + x1;
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261 }
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262
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263 static
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264 void
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265 macrotable_init(void)
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266 {
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267 unsigned i;
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268
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269 macroarrayarray_init(&macros);
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270 macroarrayarray_setsize(&macros, 4);
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271 for (i=0; i<4; i++) {
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272 macroarrayarray_set(&macros, i, NULL);
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273 }
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274 total_macros = 0;
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275 hashmask = 0x3;
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276 }
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277
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278 DESTROYALL_ARRAY(macro, );
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279
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280 static
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281 void
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282 macrotable_cleanup(void)
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283 {
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284 struct macroarray *bucket;
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285 unsigned numbuckets, i;
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286
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287 numbuckets = macroarrayarray_num(&macros);
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288 for (i=0; i<numbuckets; i++) {
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289 bucket = macroarrayarray_get(&macros, i);
28
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290 if (bucket != NULL) {
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291 macroarray_destroyall(bucket);
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292 macroarray_destroy(bucket);
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293 }
17
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294 }
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295 macroarrayarray_setsize(&macros, 0);
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296 macroarrayarray_cleanup(&macros);
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297 }
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298
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299 static
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300 struct macro *
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301 macrotable_findlen(const char *name, size_t len, bool remove)
17
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302 {
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303 unsigned hash;
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304 struct macroarray *bucket;
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305 struct macro *m, *m2;
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306 unsigned i, num;
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307 size_t mlen;
17
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308
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309 hash = hashfunc(name, len);
17
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310 bucket = macroarrayarray_get(&macros, hash & hashmask);
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311 if (bucket == NULL) {
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312 return NULL;
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313 }
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314 num = macroarray_num(bucket);
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315 for (i=0; i<num; i++) {
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316 m = macroarray_get(bucket, i);
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317 if (hash != m->hash) {
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318 continue;
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319 }
19
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320 mlen = strlen(m->name);
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321 if (len == mlen && !memcmp(name, m->name, len)) {
17
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322 if (remove) {
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323 if (i < num-1) {
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324 m2 = macroarray_get(bucket, num-1);
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325 macroarray_set(bucket, i, m2);
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326 }
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327 macroarray_setsize(bucket, num-1);
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328 total_macros--;
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329 }
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330 return m;
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331 }
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332 }
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333 return NULL;
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334 }
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335
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336 static
19
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337 struct macro *
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338 macrotable_find(const char *name, bool remove)
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339 {
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340 return macrotable_findlen(name, strlen(name), remove);
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341 }
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342
f9792a9ec704 macro expansion.
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343 static
17
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344 void
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345 macrotable_rehash(void)
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346 {
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347 struct macroarray *newbucket, *oldbucket;
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348 struct macro *m;
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349 unsigned newmask, tossbit;
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350 unsigned numbuckets, i;
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351 unsigned oldnum, j, k;
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352
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353 numbuckets = macroarrayarray_num(&macros);
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354 macroarrayarray_setsize(&macros, numbuckets*2);
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355
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diff changeset
356 assert(hashmask == numbuckets - 1);
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diff changeset
357 newmask = (hashmask << 1) | 1U;
74
bbbf71859a21 fix stupid bugs
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diff changeset
358 tossbit = newmask & ~hashmask;
17
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diff changeset
359 hashmask = newmask;
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parents:
diff changeset
360
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diff changeset
361 for (i=0; i<numbuckets; i++) {
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362 newbucket = NULL;
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363 oldbucket = macroarrayarray_get(&macros, i);
74
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diff changeset
364 if (oldbucket == NULL) {
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diff changeset
365 macroarrayarray_set(&macros, numbuckets + i, NULL);
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diff changeset
366 continue;
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diff changeset
367 }
17
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368 oldnum = macroarray_num(oldbucket);
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diff changeset
369 for (j=0; j<oldnum; j++) {
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370 m = macroarray_get(oldbucket, j);
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parents:
diff changeset
371 if (m->hash & tossbit) {
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parents:
diff changeset
372 if (newbucket == NULL) {
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diff changeset
373 newbucket = macroarray_create();
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diff changeset
374 }
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diff changeset
375 macroarray_set(oldbucket, j, NULL);
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376 macroarray_add(newbucket, m, NULL);
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diff changeset
377 }
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parents:
diff changeset
378 }
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parents:
diff changeset
379 for (j=k=0; j<oldnum; j++) {
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diff changeset
380 m = macroarray_get(oldbucket, j);
74
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diff changeset
381 if (m != NULL) {
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diff changeset
382 if (k < j) {
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diff changeset
383 macroarray_set(oldbucket, k, m);
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diff changeset
384 }
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diff changeset
385 k++;
17
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parents:
diff changeset
386 }
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parents:
diff changeset
387 }
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parents:
diff changeset
388 macroarray_setsize(oldbucket, k);
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parents:
diff changeset
389 macroarrayarray_set(&macros, numbuckets + i, newbucket);
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parents:
diff changeset
390 }
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parents:
diff changeset
391 }
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parents:
diff changeset
392
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parents:
diff changeset
393 static
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parents:
diff changeset
394 void
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parents:
diff changeset
395 macrotable_add(struct macro *m)
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diff changeset
396 {
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diff changeset
397 unsigned hash;
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parents:
diff changeset
398 struct macroarray *bucket;
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parents:
diff changeset
399 unsigned numbuckets;
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parents:
diff changeset
400
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parents:
diff changeset
401 numbuckets = macroarrayarray_num(&macros);
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parents:
diff changeset
402 if (total_macros > 0 && total_macros / numbuckets > 9) {
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parents:
diff changeset
403 macrotable_rehash();
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parents:
diff changeset
404 }
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parents:
diff changeset
405
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
406 hash = hashfunc(m->name, strlen(m->name));
17
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parents:
diff changeset
407 bucket = macroarrayarray_get(&macros, hash & hashmask);
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parents:
diff changeset
408 if (bucket == NULL) {
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parents:
diff changeset
409 bucket = macroarray_create();
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parents:
diff changeset
410 macroarrayarray_set(&macros, hash & hashmask, bucket);
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parents:
diff changeset
411 }
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parents:
diff changeset
412 macroarray_add(bucket, m, NULL);
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parents:
diff changeset
413 total_macros++;
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parents:
diff changeset
414 }
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parents:
diff changeset
415
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parents:
diff changeset
416 ////////////////////////////////////////////////////////////
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parents:
diff changeset
417 // external macro definition interface
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parents:
diff changeset
418
18
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
419 static
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parents: 17
diff changeset
420 struct macro *
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parents: 17
diff changeset
421 macro_define_common_start(struct place *p1, const char *macro,
19
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parents: 18
diff changeset
422 struct place *p2)
17
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parents:
diff changeset
423 {
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parents:
diff changeset
424 struct macro *m;
19
f9792a9ec704 macro expansion.
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parents: 18
diff changeset
425 unsigned hash;
17
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parents:
diff changeset
426
18
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
427 if (!is_identifier(macro)) {
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diff changeset
428 complain(p1, "Invalid macro name %s", macro);
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parents: 17
diff changeset
429 complain_fail();
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parents: 17
diff changeset
430 }
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parents: 17
diff changeset
431
19
f9792a9ec704 macro expansion.
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parents: 18
diff changeset
432 hash = hashfunc(macro, strlen(macro));
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
433 m = macro_create(p1, macro, hash, p2);
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
434 return m;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
435 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
436
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
437 static
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
438 void
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
439 macro_define_common_end(struct macro *m)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
440 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
441 struct macro *oldm;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
442 bool ok;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
443
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
444 oldm = macrotable_find(m->name, false);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
445 if (oldm != NULL) {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
446 ok = macro_eq(m, oldm);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
447 if (ok) {
84
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
448 /* in traditional cpp this is silent */
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
449 //complain(&m->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
450 // "Warning: redefinition of %s", m->name);
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
451 //complain(&oldm->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
452 // "Previous definition was here");
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
453 //if (mode.werror) {
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
454 // complain_fail();
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
455 //}
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
456 } else {
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
457 complain(&m->defplace,
84
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
458 "Warning: non-identical redefinition of %s",
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
459 m->name);
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
460 complain(&oldm->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
461 "Previous definition was here");
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
462 /* in traditional cpp this is not fatal */
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
463 if (mode.werror) {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
464 complain_fail();
76da41da923f added macro table
David A. Holland
parents:
diff changeset
465 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
466 }
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
467 macro_destroy(m);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
468 return;
76da41da923f added macro table
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parents:
diff changeset
469 }
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
470 macrotable_add(m);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
471 }
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
472
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
473 static
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
474 void
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
475 macro_parse_parameters(struct macro *m, struct place *p, const char *params)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
476 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
477 size_t len;
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
478 const char *s;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
479 char *param;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
480
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
481 while (params != NULL) {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
482 len = strspn(params, ws);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
483 params += len;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
484 p->column += len;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
485 s = strchr(params, ',');
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
486 if (s) {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
487 len = s-params;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
488 param = dostrndup(params, len);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
489 s++;
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
490 } else {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
491 len = strlen(params);
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
492 param = dostrndup(params, len);
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
493 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
494 notrailingws(param, strlen(param));
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
495 if (!is_identifier(param)) {
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
496 complain(p, "Invalid macro parameter name %s", param);
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
497 complain_fail();
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
498 } else {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
499 stringarray_add(&m->params, param, NULL);
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
500 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
501 params = s;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
502 p->column += len;
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
503 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
504 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
505
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
506 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
507 bool
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
508 isparam(struct macro *m, const char *name, size_t len, unsigned *num_ret)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
509 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
510 unsigned num, i;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
511 const char *param;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
512
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
513 num = stringarray_num(&m->params);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
514 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
515 param = stringarray_get(&m->params, i);
27
01c3a2088ab4 fix some more bugs
David A. Holland
parents: 25
diff changeset
516 if (strlen(param) == len && !memcmp(name, param, len)) {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
517 *num_ret = i;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
518 return true;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
519 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
520 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
521 return false;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
522 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
523
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
524 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
525 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
526 macro_parse_expansion(struct macro *m, const char *buf)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
527 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
528 size_t blockstart, wordstart, pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
529 struct expansionitem *ei;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
530 unsigned param;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
531
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
532 pos = blockstart = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
533 while (buf[pos] != '\0') {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
534 pos += strspn(buf+pos, ws);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
535 if (strchr(alnum, buf[pos])) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
536 wordstart = pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
537 pos += strspn(buf+pos, alnum);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
538 if (isparam(m, buf+wordstart, pos-wordstart, &param)) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
539 if (pos > blockstart) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
540 ei = expansionitem_create_stringlen(
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
541 buf + blockstart,
27
01c3a2088ab4 fix some more bugs
David A. Holland
parents: 25
diff changeset
542 wordstart - blockstart);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
543 expansionitemarray_add(&m->expansion,
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
544 ei, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
545 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
546 ei = expansionitem_create_param(param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
547 expansionitemarray_add(&m->expansion, ei,NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
548 blockstart = pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
549 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
550 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
551 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
552 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
553 pos++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
554 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
555 if (pos > blockstart) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
556 ei = expansionitem_create_stringlen(buf + blockstart,
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
557 pos - blockstart);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
558 expansionitemarray_add(&m->expansion, ei, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
559 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
560 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
561
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
562 void
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
563 macro_define_plain(struct place *p1, const char *macro,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
564 struct place *p2, const char *expansion)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
565 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
566 struct macro *m;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
567 struct expansionitem *ei;
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
568
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
569 m = macro_define_common_start(p1, macro, p2);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
570 ei = expansionitem_create_string(expansion);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
571 expansionitemarray_add(&m->expansion, ei, NULL);
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
572 macro_define_common_end(m);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
573 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
574
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
575 void
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
576 macro_define_params(struct place *p1, const char *macro,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
577 struct place *p2, const char *params,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
578 struct place *p3, const char *expansion)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
579 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
580 struct macro *m;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
581
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
582 m = macro_define_common_start(p1, macro, p3);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
583 m->hasparams = true;
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
584 macro_parse_parameters(m, p2, params);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
585 macro_parse_expansion(m, expansion);
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
586 macro_define_common_end(m);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
587 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
588
76da41da923f added macro table
David A. Holland
parents:
diff changeset
589 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
590 macro_undef(const char *macro)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
591 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
592 struct macro *m;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
593
76da41da923f added macro table
David A. Holland
parents:
diff changeset
594 m = macrotable_find(macro, true);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
595 if (m) {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
596 macro_destroy(m);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
597 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
598 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
599
76da41da923f added macro table
David A. Holland
parents:
diff changeset
600 bool
76da41da923f added macro table
David A. Holland
parents:
diff changeset
601 macro_isdefined(const char *macro)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
602 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
603 struct macro *m;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
604
76da41da923f added macro table
David A. Holland
parents:
diff changeset
605 m = macrotable_find(macro, false);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
606 return m != NULL;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
607 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
608
76da41da923f added macro table
David A. Holland
parents:
diff changeset
609 ////////////////////////////////////////////////////////////
76da41da923f added macro table
David A. Holland
parents:
diff changeset
610 // macro expansion
76da41da923f added macro table
David A. Holland
parents:
diff changeset
611
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
612 struct expstate {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
613 bool honordefined;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
614 enum { ES_NORMAL, ES_WANTLPAREN, ES_NOARG, ES_HAVEARG } state;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
615 struct macro *curmacro;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
616 struct stringarray args;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
617 unsigned argparens;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
618
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
619 bool tobuf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
620 char *buf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
621 size_t bufpos, bufmax;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
622 };
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
623
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
624 static struct expstate mainstate;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
625
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
626 static void doexpand(struct expstate *es, struct place *p,
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
627 char *buf, size_t len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
628
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
629 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
630 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
631 expstate_init(struct expstate *es, bool tobuf, bool honordefined)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
632 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
633 es->honordefined = honordefined;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
634 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
635 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
636 stringarray_init(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
637 es->argparens = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
638 es->tobuf = tobuf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
639 es->buf = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
640 es->bufpos = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
641 es->bufmax = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
642 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
643
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
644 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
645 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
646 expstate_cleanup(struct expstate *es)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
647 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
648 assert(es->state == ES_NORMAL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
649 stringarray_cleanup(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
650 if (es->buf) {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
651 dofree(es->buf, es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
652 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
653 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
654
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
655 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
656 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
657 expstate_destroyargs(struct expstate *es)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
658 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
659 unsigned i, num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
660
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
661 num = stringarray_num(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
662 for (i=0; i<num; i++) {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
663 dostrfree(stringarray_get(&es->args, i));
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
664 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
665 stringarray_setsize(&es->args, 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
666 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
667
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
668 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
669 void
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
670 expand_send(struct expstate *es, struct place *p, const char *buf, size_t len)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
671 {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
672 size_t oldmax;
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
673
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
674 if (es->tobuf) {
38
b156910b59b2 Wrap free() in dofree() to allow instrumenting it for debugging.
David A. Holland
parents: 33
diff changeset
675 assert(es->bufpos <= es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
676 if (es->bufpos + len > es->bufmax) {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
677 oldmax = es->bufmax;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
678 if (es->bufmax == 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
679 es->bufmax = 64;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
680 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
681 while (es->bufpos + len > es->bufmax) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
682 es->bufmax *= 2;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
683 }
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
684 es->buf = dorealloc(es->buf, oldmax, es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
685 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
686 memcpy(es->buf + es->bufpos, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
687 es->bufpos += len;
38
b156910b59b2 Wrap free() in dofree() to allow instrumenting it for debugging.
David A. Holland
parents: 33
diff changeset
688 assert(es->bufpos <= es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
689 } else {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
690 output(p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
691 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
692 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
693
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
694 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
695 void
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
696 expand_send_eof(struct expstate *es, struct place *p)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
697 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
698 if (es->tobuf) {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
699 expand_send(es, p, "", 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
700 es->bufpos--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
701 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
702 output_eof();
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
703 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
704 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
705
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
706 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
707 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
708 expand_newarg(struct expstate *es, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
709 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
710 char *text;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
711
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
712 text = dostrndup(buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
713 stringarray_add(&es->args, text, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
714 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
715
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
716 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
717 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
718 expand_appendarg(struct expstate *es, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
719 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
720 unsigned num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
721 char *text;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
722 size_t oldlen;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
723
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
724 num = stringarray_num(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
725 assert(num > 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
726
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
727 text = stringarray_get(&es->args, num - 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
728 oldlen = strlen(text);
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
729 text = dorealloc(text, oldlen + 1, oldlen + len + 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
730 memcpy(text + oldlen, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
731 text[oldlen+len] = '\0';
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
732 stringarray_set(&es->args, num - 1, text);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
733 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
734
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
735 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
736 char *
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
737 expand_substitute(struct place *p, struct expstate *es)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
738 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
739 struct expansionitem *ei;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
740 unsigned i, num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
741 size_t len;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
742 char *arg;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
743 char *ret;
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
744 unsigned numargs, numparams;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
745
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
746 numargs = stringarray_num(&es->args);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
747 numparams = stringarray_num(&es->curmacro->params);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
748
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
749 if (numargs == 0 && numparams == 1) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
750 /* no arguments <=> one empty argument */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
751 stringarray_add(&es->args, dostrdup(""), NULL);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
752 numargs++;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
753 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
754 if (numargs != numparams) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
755 complain(p, "Wrong number of arguments for macro %s; "
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
756 "found %u, expected %u",
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
757 es->curmacro->name, numargs, numparams);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
758 complain_fail();
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
759 while (numargs < numparams) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
760 stringarray_add(&es->args, dostrdup(""), NULL);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
761 numargs++;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
762 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
763 }
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
764
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
765 len = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
766 num = expansionitemarray_num(&es->curmacro->expansion);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
767 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
768 ei = expansionitemarray_get(&es->curmacro->expansion, i);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
769 if (ei->isstring) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
770 len += strlen(ei->string);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
771 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
772 arg = stringarray_get(&es->args, ei->param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
773 len += strlen(arg);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
774 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
775 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
776
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
777 ret = domalloc(len+1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
778 *ret = '\0';
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
779 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
780 ei = expansionitemarray_get(&es->curmacro->expansion, i);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
781 if (ei->isstring) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
782 strcat(ret, ei->string);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
783 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
784 arg = stringarray_get(&es->args, ei->param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
785 strcat(ret, arg);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
786 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
787 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
788
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
789 return ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
790 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
791
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
792 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
793 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
794 expand_domacro(struct expstate *es, struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
795 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
796 struct macro *m;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
797 char *newbuf, *newbuf2;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
798
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
799 if (es->curmacro == NULL) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
800 /* defined() */
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
801 if (stringarray_num(&es->args) != 1) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
802 complain(p, "Too many arguments for defined()");
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
803 complain_fail();
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
804 expand_send(es, p, "0", 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
805 return;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
806 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
807 m = macrotable_find(stringarray_get(&es->args, 0), false);
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
808 expand_send(es, p, (m != NULL) ? "1" : "0", 1);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
809 expstate_destroyargs(es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
810 return;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
811 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
812
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
813 assert(es->curmacro->inuse == false);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
814 es->curmacro->inuse = true;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
815
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
816 newbuf = expand_substitute(p, es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
817 newbuf2 = macroexpand(p, newbuf, strlen(newbuf), false);
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
818 dostrfree(newbuf);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
819 expstate_destroyargs(es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
820 doexpand(es, p, newbuf2, strlen(newbuf2));
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
821 dostrfree(newbuf2);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
822
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
823 es->curmacro->inuse = false;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
824 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
825
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
826 /*
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
827 * The traditional behavior if a function-like macro appears without
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
828 * arguments is to pretend it isn't a macro; that is, just emit its
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
829 * name.
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
830 */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
831 static
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
832 void
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
833 expand_missingargs(struct expstate *es, struct place *p, bool needspace)
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
834 {
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
835 if (es->curmacro == NULL) {
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
836 /* defined */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
837 expand_send(es, p, "defined", 7);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
838 return;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
839 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
840 expand_send(es, p, es->curmacro->name, strlen(es->curmacro->name));
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
841 /* send a space in case we ate whitespace after the macro name */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
842 if (needspace) {
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
843 expand_send(es, p, " ", 1);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
844 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
845 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
846
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
847 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
848 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
849 expand_got_ws(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
850 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
851 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
852 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
853 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
854 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
855 case ES_WANTLPAREN:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
856 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
857 case ES_NOARG:
118
c13f36775fe8 Preserve leading whitespace in macro arguments.
David A. Holland
parents: 117
diff changeset
858 expand_newarg(es, buf, len);
c13f36775fe8 Preserve leading whitespace in macro arguments.
David A. Holland
parents: 117
diff changeset
859 es->state = ES_HAVEARG;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
860 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
861 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
862 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
863 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
864 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
865 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
866
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
867 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
868 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
869 expand_got_word(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
870 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
871 struct macro *m;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
872 struct expansionitem *ei;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
873 char *newbuf;
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
874
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
875 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
876 case ES_NORMAL:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
877 if (es->honordefined &&
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
878 len == 7 && !memcmp(buf, "defined", 7)) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
879 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
880 es->state = ES_WANTLPAREN;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
881 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
882 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
883 m = macrotable_findlen(buf, len, false);
42
ad7763329eba Don't crash if a macro tries to expand itself recursively.
David A. Holland
parents: 40
diff changeset
884 if (m == NULL || m->inuse) {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
885 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
886 } else if (!m->hasparams) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
887 m->inuse = true;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
888 assert(expansionitemarray_num(&m->expansion) == 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
889 ei = expansionitemarray_get(&m->expansion, 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
890 assert(ei->isstring);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
891 newbuf = macroexpand(p, ei->string,
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
892 strlen(ei->string), false);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
893 doexpand(es, p, newbuf, strlen(newbuf));
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
894 dostrfree(newbuf);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
895 m->inuse = false;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
896 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
897 es->curmacro = m;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
898 es->state = ES_WANTLPAREN;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
899 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
900 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
901 case ES_WANTLPAREN:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
902 if (es->curmacro != NULL) {
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
903 expand_missingargs(es, p, true);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
904 es->state = ES_NORMAL;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
905 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
906 expand_got_word(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
907 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
908 /* "defined foo" means "defined(foo)" */
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
909 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
910 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
911 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
912 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
913 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
914 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
915 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
916 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
917 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
918 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
919 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
920 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
921 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
922 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
923
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
924 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
925 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
926 expand_got_lparen(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
927 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
928 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
929 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
930 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
931 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
932 case ES_WANTLPAREN:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
933 es->state = ES_NOARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
934 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
935 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
936 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
937 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
938 es->argparens++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
939 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
940 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
941 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
942 es->argparens++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
943 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
944 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
945 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
946
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
947 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
948 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
949 expand_got_rparen(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
950 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
951 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
952 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
953 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
954 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
955 case ES_WANTLPAREN:
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
956 expand_missingargs(es, p, false);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
957 es->state = ES_NORMAL;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
958 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
959 expand_got_rparen(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
960 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
961 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
962 assert(es->argparens == 0);
117
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
963 if (stringarray_num(&es->args) > 0) {
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
964 /* we are after a comma; enter an empty argument */
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
965 expand_newarg(es, buf, 0);
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
966 }
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
967 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
968 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
969 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
970 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
971 if (es->argparens > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
972 es->argparens--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
973 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
974 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
975 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
976 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
977 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
978 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
979 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
980 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
981
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
982 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
983 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
984 expand_got_comma(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
985 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
986 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
987 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
988 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
989 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
990 case ES_WANTLPAREN:
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
991 expand_missingargs(es, p, false);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
992 es->state = ES_NORMAL;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
993 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
994 expand_got_comma(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
995 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
996 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
997 assert(es->argparens == 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
998 expand_newarg(es, buf, 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
999 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1000 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1001 if (es->argparens > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1002 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1003 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1004 es->state = ES_NOARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1005 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1006 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1007 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1008 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1009
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1010 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1011 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1012 expand_got_other(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1013 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1014 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1015 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
1016 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1017 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1018 case ES_WANTLPAREN:
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1019 expand_missingargs(es, p, false);
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1020 es->state = ES_NORMAL;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1021 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1022 expand_got_other(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1023 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1024 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1025 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1026 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1027 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1028 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1029 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1030 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1031 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1032 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1033
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1034 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1035 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1036 expand_got_eof(struct expstate *es, struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1037 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1038 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1039 case ES_NORMAL:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1040 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1041 case ES_WANTLPAREN:
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1042 expand_missingargs(es, p, false);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1043 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1044 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1045 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1046 if (es->curmacro) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1047 complain(p, "Unclosed argument list for macro %s",
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1048 es->curmacro->name);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1049 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1050 complain(p, "Unclosed argument list for defined()");
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1051 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1052 complain_fail();
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1053 expstate_destroyargs(es);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1054 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1055 }
88
36066289e31a Always send the expansion state an EOF.
David A. Holland
parents: 87
diff changeset
1056 expand_send_eof(es, p);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1057 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1058 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1059 es->argparens = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1060 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1061
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1062 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1063 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1064 doexpand(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1065 {
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1066 char *s;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1067 size_t x;
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1068 bool inquote = false;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1069
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1070 while (len > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1071 x = strspn(buf, ws);
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1072 if (x > len) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1073 /* XXX gross, need strnspn */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1074 x = len;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1075 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1076
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1077 if (x > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1078 expand_got_ws(es, p, buf, x);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1079 buf += x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1080 len -= x;
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1081 continue;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1082 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1083
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1084 x = strspn(buf, alnum);
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1085 if (x > len) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1086 /* XXX gross, need strnspn */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1087 x = len;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1088 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1089
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1090 if (x > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1091 expand_got_word(es, p, buf, x);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1092 buf += x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1093 len -= x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1094 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1095 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1096
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1097 if (!inquote && len > 1 && buf[0] == '/' && buf[1] == '*') {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1098 s = strstr(buf, "*/");
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1099 if (s) {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1100 x = s - buf;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1101 } else {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1102 x = len;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1103 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1104 expand_got_ws(es, p, buf, x);
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1105 buf += x;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1106 len -= x;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1107 continue;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1108 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1109
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1110 if (buf[0] == '(') {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1111 expand_got_lparen(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1112 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1113 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1114 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1115 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1116
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1117 if (buf[0] == ')') {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1118 expand_got_rparen(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1119 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1120 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1121 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1122 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1123
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1124 if (buf[0] == ',') {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1125 expand_got_comma(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1126 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1127 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1128 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1129 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1130
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1131 if (len > 1 && buf[0] == '\\' && buf[1] == '"') {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1132 expand_got_other(es, p, buf, 2);
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1133 buf += 2;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1134 len -= 2;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1135 continue;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1136 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1137 if (buf[0] == '"') {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1138 inquote = !inquote;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1139 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1140
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1141 expand_got_other(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1142 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1143 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1144 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1145 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1146
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1147 char *
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1148 macroexpand(struct place *p, char *buf, size_t len, bool honordefined)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1149 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1150 struct expstate es;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1151 char *ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1152
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1153 expstate_init(&es, true, honordefined);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1154 doexpand(&es, p, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1155 expand_got_eof(&es, p);
40
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1156
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1157 /* trim to fit, so the malloc debugging won't complain */
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1158 es.buf = dorealloc(es.buf, es.bufmax, strlen(es.buf) + 1);
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1159
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1160 ret = es.buf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1161 es.buf = NULL;
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
1162 es.bufpos = es.bufmax = 0;
40
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1163
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1164 expstate_cleanup(&es);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1165
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1166 return ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1167 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1168
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1169 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1170 macro_sendline(struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1171 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1172 doexpand(&mainstate, p, buf, len);
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
1173 output(p, "\n", 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1174 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1175
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1176 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1177 macro_sendeof(struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1178 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1179 expand_got_eof(&mainstate, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1180 }
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1181
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1182 ////////////////////////////////////////////////////////////
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1183 // module initialization
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1184
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1185 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1186 macros_init(void)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1187 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1188 macrotable_init();
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1189 expstate_init(&mainstate, false, false);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1190 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1191
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1192 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1193 macros_cleanup(void)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1194 {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1195 expstate_cleanup(&mainstate);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1196 macrotable_cleanup();
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1197 }