annotate macro.c @ 169:80e243f2047d

Revert addition of "isspecial" field in struct macro. It doesn't do anything useful any more.
author David A. Holland
date Fri, 12 Jun 2015 02:01:00 -0400
parents 8d8a4bfd4684
children 2ee7db420643
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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 <stdio.h>
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32 #include <stdlib.h>
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33 #include <string.h>
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34
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35 #include "array.h"
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36 #include "mode.h"
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37 #include "place.h"
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38 #include "macro.h"
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39 #include "output.h"
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40
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41 struct expansionitem {
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42 enum { EI_PARAM, EI_STRING, EI_FILE, EI_LINE } itemtype;
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43 union {
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44 char *string;
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45 unsigned param;
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46 };
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47 };
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48 DECLARRAY(expansionitem, static UNUSED);
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49 DEFARRAY(expansionitem, static);
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50
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51 struct macro {
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52 struct place defplace;
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53 struct place expansionplace;
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54 struct stringarray params;
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55 struct expansionitemarray expansion;
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56 char *name;
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57 unsigned hash;
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58 bool hasparams;
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59 bool inuse;
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60 };
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61 DECLARRAY(macro, static UNUSED);
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62 DEFARRAY(macro, static);
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63 DECLARRAY(macroarray, static UNUSED);
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64 DEFARRAY(macroarray, static);
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65
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66 static struct macroarrayarray macros;
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67 static unsigned total_macros;
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68 static unsigned hashmask;
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69
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70 ////////////////////////////////////////////////////////////
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71 // macro structure ops
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72
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73 static
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74 struct expansionitem *
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75 expansionitem_create_string(const char *string)
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76 {
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77 struct expansionitem *ei;
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78
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79 ei = domalloc(sizeof(*ei));
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80 ei->itemtype = EI_STRING;
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81 ei->string = dostrdup(string);
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82 return ei;
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83 }
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84
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85 static
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86 struct expansionitem *
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87 expansionitem_create_stringlen(const char *string, size_t len)
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88 {
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89 struct expansionitem *ei;
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90
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91 ei = domalloc(sizeof(*ei));
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92 ei->itemtype = EI_STRING;
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93 ei->string = dostrndup(string, len);
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94 return ei;
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95 }
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96
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97 static
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98 struct expansionitem *
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99 expansionitem_create_param(unsigned param)
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100 {
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101 struct expansionitem *ei;
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102
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103 ei = domalloc(sizeof(*ei));
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104 ei->itemtype = EI_PARAM;
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105 ei->param = param;
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106 return ei;
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107 }
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108
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109 static
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110 struct expansionitem *
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111 expansionitem_create_file(void)
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112 {
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113 struct expansionitem *ei;
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114
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115 ei = domalloc(sizeof(*ei));
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116 ei->itemtype = EI_FILE;
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117 return ei;
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118 }
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119
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120 static
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121 struct expansionitem *
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122 expansionitem_create_line(void)
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123 {
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124 struct expansionitem *ei;
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125
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126 ei = domalloc(sizeof(*ei));
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127 ei->itemtype = EI_LINE;
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128 return ei;
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129 }
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130
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131 static
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132 void
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133 expansionitem_destroy(struct expansionitem *ei)
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134 {
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135 if (ei->itemtype == EI_STRING) {
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136 dostrfree(ei->string);
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137 }
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138 dofree(ei, sizeof(*ei));
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139 }
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140
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141 static
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142 bool
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143 expansionitem_eq(const struct expansionitem *ei1,
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144 const struct expansionitem *ei2)
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145 {
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146 if ((ei1->itemtype == EI_STRING) != (ei2->itemtype == EI_STRING)) {
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147 return false;
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148 }
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149 if (ei1->itemtype == EI_STRING) {
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150 if (strcmp(ei1->string, ei2->string) != 0) {
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151 return false;
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152 }
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153 } else {
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154 if (ei1->param != ei2->param) {
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155 return false;
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156 }
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157 }
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158 return true;
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159 }
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160
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161 static
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162 struct macro *
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163 macro_create(struct place *p1, const char *name, unsigned hash,
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164 struct place *p2)
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165 {
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166 struct macro *m;
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167
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168 m = domalloc(sizeof(*m));
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169 m->defplace = *p1;
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170 m->expansionplace = *p2;
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171 m->hash = hash;
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172 m->name = dostrdup(name);
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173 m->hasparams = false;
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174 stringarray_init(&m->params);
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175 expansionitemarray_init(&m->expansion);
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176 m->inuse = false;
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177 return m;
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178 }
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179
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180 DESTROYALL_ARRAY(expansionitem, );
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181
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182 static
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183 void
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184 macro_destroy(struct macro *m)
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185 {
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186 expansionitemarray_destroyall(&m->expansion);
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187 expansionitemarray_cleanup(&m->expansion);
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188 dostrfree(m->name);
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189 dofree(m, sizeof(*m));
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190 }
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191
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192 static
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193 bool
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194 macro_eq(const struct macro *m1, const struct macro *m2)
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195 {
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196 unsigned num1, num2, i;
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197 struct expansionitem *ei1, *ei2;
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198 const char *p1, *p2;
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199
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200 if (strcmp(m1->name, m2->name) != 0) {
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201 return false;
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202 }
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203
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204 if (m1->hasparams != m2->hasparams) {
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205 return false;
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206 }
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207
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208 num1 = expansionitemarray_num(&m1->expansion);
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209 num2 = expansionitemarray_num(&m2->expansion);
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210 if (num1 != num2) {
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211 return false;
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212 }
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213
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214 for (i=0; i<num1; i++) {
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215 ei1 = expansionitemarray_get(&m1->expansion, i);
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216 ei2 = expansionitemarray_get(&m2->expansion, i);
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217 if (!expansionitem_eq(ei1, ei2)) {
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218 return false;
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219 }
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220 }
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221
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222 num1 = stringarray_num(&m1->params);
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223 num2 = stringarray_num(&m2->params);
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224 if (num1 != num2) {
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225 return false;
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226 }
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227
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228 for (i=0; i<num1; i++) {
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229 p1 = stringarray_get(&m1->params, i);
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230 p2 = stringarray_get(&m2->params, i);
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231 if (strcmp(p1, p2) != 0) {
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232 return false;
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233 }
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234 }
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235 return true;
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236 }
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237
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238 ////////////////////////////////////////////////////////////
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239 // macro table
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240
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241 /*
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242 * Unless I've screwed up, this is something called Fletcher's Checksum
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243 * that showed up in Dr. Dobbs in, according to my notes, May 1992. The
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244 * implementation is new.
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245 */
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246 static
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247 unsigned
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248 hashfunc(const char *s, size_t len)
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249 {
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250 uint16_t x1, x2, a;
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251 size_t i;
17
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252
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253 x1 = (uint16_t) (len >> 16);
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254 x2 = (uint16_t) (len);
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255 if (x1==0) {
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256 x1++;
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257 }
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258 if (x2==0) {
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259 x2++;
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260 }
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261
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262 for (i=0; i<len; i+=2) {
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263 if (i==len-1) {
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264 a = (unsigned char)s[i];
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265 /* don't run off the end of the array */
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266 }
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267 else {
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268 a = (unsigned char)s[i] +
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269 ((uint16_t)(unsigned char)s[i+1] << 8);
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270 }
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271 x1 += a;
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272 if (x1 < a) {
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273 x1++;
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274 }
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275 x2 += x1;
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276 if (x2 < x1) {
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277 x2++;
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278 }
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279 }
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280
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281 x1 ^= 0xffff;
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282 x2 ^= 0xffff;
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283 return ((uint32_t)x2)*65535U + x1;
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284 }
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285
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286 static
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287 void
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288 macrotable_init(void)
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289 {
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290 unsigned i;
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291
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292 macroarrayarray_init(&macros);
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293 macroarrayarray_setsize(&macros, 4);
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294 for (i=0; i<4; i++) {
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295 macroarrayarray_set(&macros, i, NULL);
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296 }
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297 total_macros = 0;
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298 hashmask = 0x3;
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299 }
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300
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301 DESTROYALL_ARRAY(macro, );
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302
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303 static
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304 void
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305 macrotable_cleanup(void)
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306 {
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307 struct macroarray *bucket;
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308 unsigned numbuckets, i;
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309
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310 numbuckets = macroarrayarray_num(&macros);
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311 for (i=0; i<numbuckets; i++) {
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312 bucket = macroarrayarray_get(&macros, i);
28
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313 if (bucket != NULL) {
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314 macroarray_destroyall(bucket);
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315 macroarray_destroy(bucket);
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316 }
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317 }
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318 macroarrayarray_setsize(&macros, 0);
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319 macroarrayarray_cleanup(&macros);
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320 }
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321
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322 static
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323 struct macro *
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324 macrotable_findlen(const char *name, size_t len, bool remove)
17
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325 {
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326 unsigned hash;
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327 struct macroarray *bucket;
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328 struct macro *m, *m2;
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329 unsigned i, num;
19
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330 size_t mlen;
17
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331
19
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332 hash = hashfunc(name, len);
17
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333 bucket = macroarrayarray_get(&macros, hash & hashmask);
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334 if (bucket == NULL) {
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335 return NULL;
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336 }
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337 num = macroarray_num(bucket);
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338 for (i=0; i<num; i++) {
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339 m = macroarray_get(bucket, i);
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340 if (hash != m->hash) {
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341 continue;
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342 }
19
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343 mlen = strlen(m->name);
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344 if (len == mlen && !memcmp(name, m->name, len)) {
17
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345 if (remove) {
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346 if (i < num-1) {
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347 m2 = macroarray_get(bucket, num-1);
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348 macroarray_set(bucket, i, m2);
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349 }
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350 macroarray_setsize(bucket, num-1);
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351 total_macros--;
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352 }
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diff changeset
353 return m;
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diff changeset
354 }
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355 }
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356 return NULL;
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diff changeset
357 }
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358
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359 static
19
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diff changeset
360 struct macro *
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361 macrotable_find(const char *name, bool remove)
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diff changeset
362 {
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diff changeset
363 return macrotable_findlen(name, strlen(name), remove);
f9792a9ec704 macro expansion.
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diff changeset
364 }
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diff changeset
365
f9792a9ec704 macro expansion.
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366 static
17
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367 void
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368 macrotable_rehash(void)
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369 {
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370 struct macroarray *newbucket, *oldbucket;
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371 struct macro *m;
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diff changeset
372 unsigned newmask, tossbit;
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diff changeset
373 unsigned numbuckets, i;
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diff changeset
374 unsigned oldnum, j, k;
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diff changeset
375
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diff changeset
376 numbuckets = macroarrayarray_num(&macros);
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diff changeset
377 macroarrayarray_setsize(&macros, numbuckets*2);
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diff changeset
378
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diff changeset
379 assert(hashmask == numbuckets - 1);
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parents:
diff changeset
380 newmask = (hashmask << 1) | 1U;
74
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diff changeset
381 tossbit = newmask & ~hashmask;
17
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parents:
diff changeset
382 hashmask = newmask;
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parents:
diff changeset
383
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parents:
diff changeset
384 for (i=0; i<numbuckets; i++) {
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diff changeset
385 newbucket = NULL;
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diff changeset
386 oldbucket = macroarrayarray_get(&macros, i);
74
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diff changeset
387 if (oldbucket == NULL) {
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diff changeset
388 macroarrayarray_set(&macros, numbuckets + i, NULL);
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diff changeset
389 continue;
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diff changeset
390 }
17
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diff changeset
391 oldnum = macroarray_num(oldbucket);
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parents:
diff changeset
392 for (j=0; j<oldnum; j++) {
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parents:
diff changeset
393 m = macroarray_get(oldbucket, j);
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parents:
diff changeset
394 if (m->hash & tossbit) {
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parents:
diff changeset
395 if (newbucket == NULL) {
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parents:
diff changeset
396 newbucket = macroarray_create();
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diff changeset
397 }
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diff changeset
398 macroarray_set(oldbucket, j, NULL);
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parents:
diff changeset
399 macroarray_add(newbucket, m, NULL);
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parents:
diff changeset
400 }
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parents:
diff changeset
401 }
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parents:
diff changeset
402 for (j=k=0; j<oldnum; j++) {
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parents:
diff changeset
403 m = macroarray_get(oldbucket, j);
74
bbbf71859a21 fix stupid bugs
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diff changeset
404 if (m != NULL) {
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parents: 47
diff changeset
405 if (k < j) {
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David A. Holland
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diff changeset
406 macroarray_set(oldbucket, k, m);
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diff changeset
407 }
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David A. Holland
parents: 47
diff changeset
408 k++;
17
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parents:
diff changeset
409 }
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parents:
diff changeset
410 }
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parents:
diff changeset
411 macroarray_setsize(oldbucket, k);
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diff changeset
412 macroarrayarray_set(&macros, numbuckets + i, newbucket);
76da41da923f added macro table
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parents:
diff changeset
413 }
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parents:
diff changeset
414 }
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parents:
diff changeset
415
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David A. Holland
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416 static
76da41da923f added macro table
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417 void
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David A. Holland
parents:
diff changeset
418 macrotable_add(struct macro *m)
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419 {
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diff changeset
420 unsigned hash;
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421 struct macroarray *bucket;
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parents:
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422 unsigned numbuckets;
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David A. Holland
parents:
diff changeset
423
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424 numbuckets = macroarrayarray_num(&macros);
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David A. Holland
parents:
diff changeset
425 if (total_macros > 0 && total_macros / numbuckets > 9) {
76da41da923f added macro table
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parents:
diff changeset
426 macrotable_rehash();
76da41da923f added macro table
David A. Holland
parents:
diff changeset
427 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
428
19
f9792a9ec704 macro expansion.
David A. Holland
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diff changeset
429 hash = hashfunc(m->name, strlen(m->name));
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
430 bucket = macroarrayarray_get(&macros, hash & hashmask);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
431 if (bucket == NULL) {
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David A. Holland
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diff changeset
432 bucket = macroarray_create();
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433 macroarrayarray_set(&macros, hash & hashmask, bucket);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
434 }
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David A. Holland
parents:
diff changeset
435 macroarray_add(bucket, m, NULL);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
436 total_macros++;
76da41da923f added macro table
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parents:
diff changeset
437 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
438
76da41da923f added macro table
David A. Holland
parents:
diff changeset
439 ////////////////////////////////////////////////////////////
76da41da923f added macro table
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440 // external macro definition interface
76da41da923f added macro table
David A. Holland
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441
18
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diff changeset
442 static
c08a947d8f30 deal with macro parameters
David A. Holland
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diff changeset
443 struct macro *
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David A. Holland
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diff changeset
444 macro_define_common_start(struct place *p1, const char *macro,
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
445 struct place *p2)
17
76da41da923f added macro table
David A. Holland
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446 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
447 struct macro *m;
19
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David A. Holland
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diff changeset
448 unsigned hash;
17
76da41da923f added macro table
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449
18
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David A. Holland
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diff changeset
450 if (!is_identifier(macro)) {
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diff changeset
451 complain(p1, "Invalid macro name %s", macro);
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diff changeset
452 complain_fail();
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diff changeset
453 }
c08a947d8f30 deal with macro parameters
David A. Holland
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diff changeset
454
19
f9792a9ec704 macro expansion.
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diff changeset
455 hash = hashfunc(macro, strlen(macro));
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David A. Holland
parents: 18
diff changeset
456 m = macro_create(p1, macro, hash, p2);
18
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David A. Holland
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diff changeset
457 return m;
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diff changeset
458 }
c08a947d8f30 deal with macro parameters
David A. Holland
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diff changeset
459
c08a947d8f30 deal with macro parameters
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diff changeset
460 static
c08a947d8f30 deal with macro parameters
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diff changeset
461 void
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diff changeset
462 macro_define_common_end(struct macro *m)
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diff changeset
463 {
c08a947d8f30 deal with macro parameters
David A. Holland
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diff changeset
464 struct macro *oldm;
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diff changeset
465 bool ok;
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466
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467 oldm = macrotable_find(m->name, false);
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diff changeset
468 if (oldm != NULL) {
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diff changeset
469 ok = macro_eq(m, oldm);
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diff changeset
470 if (ok) {
84
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
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diff changeset
471 /* in traditional cpp this is silent */
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
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diff changeset
472 //complain(&m->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
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diff changeset
473 // "Warning: redefinition of %s", m->name);
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David A. Holland
parents: 74
diff changeset
474 //complain(&oldm->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
475 // "Previous definition was here");
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
476 //if (mode.werror) {
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
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diff changeset
477 // complain_fail();
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
478 //}
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
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diff changeset
479 } else {
18
c08a947d8f30 deal with macro parameters
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diff changeset
480 complain(&m->defplace,
84
7e4723d34248 Complain only about non-identical redefinitions of macros.
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diff changeset
481 "Warning: non-identical redefinition of %s",
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
482 m->name);
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
483 complain(&oldm->defplace,
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
484 "Previous definition was here");
7e4723d34248 Complain only about non-identical redefinitions of macros.
David A. Holland
parents: 74
diff changeset
485 /* in traditional cpp this is not fatal */
17
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diff changeset
486 if (mode.werror) {
76da41da923f added macro table
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487 complain_fail();
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parents:
diff changeset
488 }
76da41da923f added macro table
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parents:
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489 }
18
c08a947d8f30 deal with macro parameters
David A. Holland
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diff changeset
490 macro_destroy(m);
17
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491 return;
76da41da923f added macro table
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diff changeset
492 }
18
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David A. Holland
parents: 17
diff changeset
493 macrotable_add(m);
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parents: 17
diff changeset
494 }
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
495
18
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parents: 17
diff changeset
496 static
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diff changeset
497 void
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parents: 17
diff changeset
498 macro_parse_parameters(struct macro *m, struct place *p, const char *params)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
499 {
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
500 size_t len;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
501 const char *s;
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parents: 17
diff changeset
502 char *param;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
503
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
504 while (params != NULL) {
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
505 len = strspn(params, ws);
c08a947d8f30 deal with macro parameters
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diff changeset
506 params += len;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
507 p->column += len;
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parents: 17
diff changeset
508 s = strchr(params, ',');
c08a947d8f30 deal with macro parameters
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parents: 17
diff changeset
509 if (s) {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
510 len = s-params;
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parents: 17
diff changeset
511 param = dostrndup(params, len);
c08a947d8f30 deal with macro parameters
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diff changeset
512 s++;
c08a947d8f30 deal with macro parameters
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diff changeset
513 } else {
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David A. Holland
parents: 17
diff changeset
514 len = strlen(params);
c08a947d8f30 deal with macro parameters
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diff changeset
515 param = dostrndup(params, len);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
516 }
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parents: 17
diff changeset
517 notrailingws(param, strlen(param));
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parents: 17
diff changeset
518 if (!is_identifier(param)) {
c08a947d8f30 deal with macro parameters
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diff changeset
519 complain(p, "Invalid macro parameter name %s", param);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
520 complain_fail();
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parents: 17
diff changeset
521 } else {
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diff changeset
522 stringarray_add(&m->params, param, NULL);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
523 }
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David A. Holland
parents: 17
diff changeset
524 params = s;
c08a947d8f30 deal with macro parameters
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diff changeset
525 p->column += len;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
526 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
527 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
528
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
529 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
530 bool
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
531 isparam(struct macro *m, const char *name, size_t len, unsigned *num_ret)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
532 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
533 unsigned num, i;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
534 const char *param;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
535
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
536 num = stringarray_num(&m->params);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
537 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
538 param = stringarray_get(&m->params, i);
27
01c3a2088ab4 fix some more bugs
David A. Holland
parents: 25
diff changeset
539 if (strlen(param) == len && !memcmp(name, param, len)) {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
540 *num_ret = i;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
541 return true;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
542 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
543 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
544 return false;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
545 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
546
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
547 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
548 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
549 macro_parse_expansion(struct macro *m, const char *buf)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
550 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
551 size_t blockstart, wordstart, pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
552 struct expansionitem *ei;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
553 unsigned param;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
554
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
555 pos = blockstart = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
556 while (buf[pos] != '\0') {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
557 pos += strspn(buf+pos, ws);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
558 if (strchr(alnum, buf[pos])) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
559 wordstart = pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
560 pos += strspn(buf+pos, alnum);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
561 if (isparam(m, buf+wordstart, pos-wordstart, &param)) {
144
7ab3d0c09cd8 fix very minor bug
David A. Holland
parents: 129
diff changeset
562 if (wordstart > blockstart) {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
563 ei = expansionitem_create_stringlen(
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
564 buf + blockstart,
27
01c3a2088ab4 fix some more bugs
David A. Holland
parents: 25
diff changeset
565 wordstart - blockstart);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
566 expansionitemarray_add(&m->expansion,
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
567 ei, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
568 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
569 ei = expansionitem_create_param(param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
570 expansionitemarray_add(&m->expansion, ei,NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
571 blockstart = pos;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
572 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
573 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
574 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
575 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
576 pos++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
577 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
578 if (pos > blockstart) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
579 ei = expansionitem_create_stringlen(buf + blockstart,
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
580 pos - blockstart);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
581 expansionitemarray_add(&m->expansion, ei, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
582 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
583 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
584
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
585 void
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
586 macro_define_plain(struct place *p1, const char *macro,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
587 struct place *p2, const char *expansion)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
588 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
589 struct macro *m;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
590 struct expansionitem *ei;
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
591
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
592 m = macro_define_common_start(p1, macro, p2);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
593 ei = expansionitem_create_string(expansion);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
594 expansionitemarray_add(&m->expansion, ei, NULL);
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
595 macro_define_common_end(m);
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
596 }
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
597
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
598 void
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
599 macro_define_file(struct place *p)
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
600 {
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
601 struct macro *m;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
602 struct expansionitem *ei;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
603
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
604 m = macro_define_common_start(p, "__FILE__", p);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
605 ei = expansionitem_create_file();
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
606 expansionitemarray_add(&m->expansion, ei, NULL);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
607 macro_define_common_end(m);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
608 }
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
609
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
610 void
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
611 macro_define_line(struct place *p)
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
612 {
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
613 struct macro *m;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
614 struct expansionitem *ei;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
615
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
616 m = macro_define_common_start(p, "__LINE__", p);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
617 ei = expansionitem_create_line();
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
618 expansionitemarray_add(&m->expansion, ei, NULL);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
619 macro_define_common_end(m);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
620 }
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
621
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
622 void
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
623 macro_define_params(struct place *p1, const char *macro,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
624 struct place *p2, const char *params,
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
625 struct place *p3, const char *expansion)
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
626 {
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
627 struct macro *m;
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
628
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
629 m = macro_define_common_start(p1, macro, p3);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
630 m->hasparams = true;
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
631 macro_parse_parameters(m, p2, params);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
632 macro_parse_expansion(m, expansion);
18
c08a947d8f30 deal with macro parameters
David A. Holland
parents: 17
diff changeset
633 macro_define_common_end(m);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
634 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
635
76da41da923f added macro table
David A. Holland
parents:
diff changeset
636 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
637 macro_undef(const char *macro)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
638 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
639 struct macro *m;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
640
76da41da923f added macro table
David A. Holland
parents:
diff changeset
641 m = macrotable_find(macro, true);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
642 if (m) {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
643 macro_destroy(m);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
644 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
645 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
646
76da41da923f added macro table
David A. Holland
parents:
diff changeset
647 bool
76da41da923f added macro table
David A. Holland
parents:
diff changeset
648 macro_isdefined(const char *macro)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
649 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
650 struct macro *m;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
651
76da41da923f added macro table
David A. Holland
parents:
diff changeset
652 m = macrotable_find(macro, false);
76da41da923f added macro table
David A. Holland
parents:
diff changeset
653 return m != NULL;
76da41da923f added macro table
David A. Holland
parents:
diff changeset
654 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
655
76da41da923f added macro table
David A. Holland
parents:
diff changeset
656 ////////////////////////////////////////////////////////////
76da41da923f added macro table
David A. Holland
parents:
diff changeset
657 // macro expansion
76da41da923f added macro table
David A. Holland
parents:
diff changeset
658
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
659 struct expstate {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
660 bool honordefined;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
661 enum { ES_NORMAL, ES_WANTLPAREN, ES_NOARG, ES_HAVEARG } state;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
662 struct macro *curmacro;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
663 struct stringarray args;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
664 unsigned argparens;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
665
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
666 bool tobuf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
667 char *buf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
668 size_t bufpos, bufmax;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
669 };
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
670
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
671 static struct expstate mainstate;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
672
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
673 static void doexpand(struct expstate *es, struct place *p,
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
674 char *buf, size_t len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
675
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
676 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
677 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
678 expstate_init(struct expstate *es, bool tobuf, bool honordefined)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
679 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
680 es->honordefined = honordefined;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
681 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
682 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
683 stringarray_init(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
684 es->argparens = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
685 es->tobuf = tobuf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
686 es->buf = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
687 es->bufpos = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
688 es->bufmax = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
689 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
690
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
691 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
692 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
693 expstate_cleanup(struct expstate *es)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
694 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
695 assert(es->state == ES_NORMAL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
696 stringarray_cleanup(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
697 if (es->buf) {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
698 dofree(es->buf, es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
699 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
700 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
701
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
702 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
703 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
704 expstate_destroyargs(struct expstate *es)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
705 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
706 unsigned i, num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
707
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
708 num = stringarray_num(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
709 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
710 dostrfree(stringarray_get(&es->args, i));
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
711 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
712 stringarray_setsize(&es->args, 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
713 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
714
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
715 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
716 void
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
717 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
718 {
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
719 size_t oldmax;
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
720
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
721 if (es->tobuf) {
38
b156910b59b2 Wrap free() in dofree() to allow instrumenting it for debugging.
David A. Holland
parents: 33
diff changeset
722 assert(es->bufpos <= es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
723 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
724 oldmax = es->bufmax;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
725 if (es->bufmax == 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
726 es->bufmax = 64;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
727 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
728 while (es->bufpos + len > es->bufmax) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
729 es->bufmax *= 2;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
730 }
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
731 es->buf = dorealloc(es->buf, oldmax, es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
732 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
733 memcpy(es->buf + es->bufpos, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
734 es->bufpos += len;
38
b156910b59b2 Wrap free() in dofree() to allow instrumenting it for debugging.
David A. Holland
parents: 33
diff changeset
735 assert(es->bufpos <= es->bufmax);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
736 } else {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
737 output(p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
738 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
739 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
740
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
741 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
742 void
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
743 expand_send_eof(struct expstate *es, struct place *p)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
744 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
745 if (es->tobuf) {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
746 expand_send(es, p, "", 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
747 es->bufpos--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
748 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
749 output_eof();
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
750 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
751 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
752
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
753 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
754 void
161
4a4b3d5c41fa Use more const.
Joerg Sonnenberger <joerg@bec.de>
parents: 159
diff changeset
755 expand_newarg(struct expstate *es, const char *buf, size_t len)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
756 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
757 char *text;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
758
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
759 text = dostrndup(buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
760 stringarray_add(&es->args, text, NULL);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
761 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
762
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
763 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
764 void
161
4a4b3d5c41fa Use more const.
Joerg Sonnenberger <joerg@bec.de>
parents: 159
diff changeset
765 expand_appendarg(struct expstate *es, const char *buf, size_t len)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
766 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
767 unsigned num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
768 char *text;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
769 size_t oldlen;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
770
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
771 num = stringarray_num(&es->args);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
772 assert(num > 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
773
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
774 text = stringarray_get(&es->args, num - 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
775 oldlen = strlen(text);
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
776 text = dorealloc(text, oldlen + 1, oldlen + len + 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
777 memcpy(text + oldlen, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
778 text[oldlen+len] = '\0';
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
779 stringarray_set(&es->args, num - 1, text);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
780 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
781
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
782 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
783 char *
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
784 expand_substitute(struct place *p, struct expstate *es)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
785 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
786 struct expansionitem *ei;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
787 unsigned i, num;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
788 size_t len;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
789 char *arg;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
790 char *ret;
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
791 unsigned numargs, numparams;
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
792 char numbuf[64];
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
793
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
794 numargs = stringarray_num(&es->args);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
795 numparams = stringarray_num(&es->curmacro->params);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
796
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
797 if (numargs == 0 && numparams == 1) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
798 /* no arguments <=> one empty argument */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
799 stringarray_add(&es->args, dostrdup(""), NULL);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
800 numargs++;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
801 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
802 if (numargs != numparams) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
803 complain(p, "Wrong number of arguments for macro %s; "
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
804 "found %u, expected %u",
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
805 es->curmacro->name, numargs, numparams);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
806 complain_fail();
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
807 while (numargs < numparams) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
808 stringarray_add(&es->args, dostrdup(""), NULL);
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
809 numargs++;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
810 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
811 }
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
812
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
813 len = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
814 num = expansionitemarray_num(&es->curmacro->expansion);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
815 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
816 ei = expansionitemarray_get(&es->curmacro->expansion, i);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
817 switch (ei->itemtype) {
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
818 case EI_STRING:
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
819 len += strlen(ei->string);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
820 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
821 case EI_PARAM:
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
822 arg = stringarray_get(&es->args, ei->param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
823 len += strlen(arg);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
824 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
825 case EI_FILE:
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
826 len += strlen(place_getname(p)) + 2;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
827 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
828 case EI_LINE:
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
829 len += snprintf(numbuf, sizeof(numbuf), "%u", p->line);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
830 break;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
831 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
832 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
833
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
834 ret = domalloc(len+1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
835 *ret = '\0';
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
836 for (i=0; i<num; i++) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
837 ei = expansionitemarray_get(&es->curmacro->expansion, i);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
838 switch (ei->itemtype) {
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
839 case EI_STRING:
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
840 strcat(ret, ei->string);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
841 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
842 case EI_PARAM:
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
843 arg = stringarray_get(&es->args, ei->param);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
844 strcat(ret, arg);
159
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
845 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
846 case EI_FILE:
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
847 strcat(ret, "\"");
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
848 strcat(ret, place_getname(p));
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
849 strcat(ret, "\"");
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
850 break;
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
851 case EI_LINE:
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
852 snprintf(numbuf, sizeof(numbuf), "%u", p->line);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
853 strcat(ret, numbuf);
8cef6d7227a8 Expand __FILE__ and __LINE__.
Joerg Sonnenberger <joerg@bec.de>
parents: 158
diff changeset
854 break;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
855 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
856 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
857
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
858 return ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
859 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
860
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
861 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
862 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
863 expand_domacro(struct expstate *es, struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
864 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
865 struct macro *m;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
866 char *newbuf, *newbuf2;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
867
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
868 if (es->curmacro == NULL) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
869 /* defined() */
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
870 if (stringarray_num(&es->args) != 1) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
871 complain(p, "Too many arguments for defined()");
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
872 complain_fail();
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
873 expand_send(es, p, "0", 1);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
874 return;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
875 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
876 m = macrotable_find(stringarray_get(&es->args, 0), false);
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
877 expand_send(es, p, (m != NULL) ? "1" : "0", 1);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
878 expstate_destroyargs(es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
879 return;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
880 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
881
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
882 assert(es->curmacro->inuse == false);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
883 es->curmacro->inuse = true;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
884
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
885 newbuf = expand_substitute(p, es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
886 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
887 dostrfree(newbuf);
25
18681e5ae6e4 fix some more bugs
David A. Holland
parents: 21
diff changeset
888 expstate_destroyargs(es);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
889 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
890 dostrfree(newbuf2);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
891
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
892 es->curmacro->inuse = false;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
893 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
894
87
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
895 /*
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
896 * 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
897 * 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
898 * name.
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
899 */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
900 static
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
901 void
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
902 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
903 {
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
904 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
905 /* defined */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
906 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
907 return;
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
908 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
909 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
910 /* 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
911 if (needspace) {
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
912 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
913 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
914 }
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
915
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
916 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
917 void
161
4a4b3d5c41fa Use more const.
Joerg Sonnenberger <joerg@bec.de>
parents: 159
diff changeset
918 expand_got_ws(struct expstate *es, struct place *p, const char *buf, size_t len)
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
919 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
920 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
921 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
922 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
923 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
924 case ES_WANTLPAREN:
152
e787bd67bf88 add commented-out note for later
David A. Holland
parents: 145
diff changeset
925 /* XXX notyet */
e787bd67bf88 add commented-out note for later
David A. Holland
parents: 145
diff changeset
926 //expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
927 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
928 case ES_NOARG:
118
c13f36775fe8 Preserve leading whitespace in macro arguments.
David A. Holland
parents: 117
diff changeset
929 expand_newarg(es, buf, len);
c13f36775fe8 Preserve leading whitespace in macro arguments.
David A. Holland
parents: 117
diff changeset
930 es->state = ES_HAVEARG;
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_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
933 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
934 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
935 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
936 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
937
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
938 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
939 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
940 expand_got_word(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
941 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
942 struct macro *m;
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
943
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
944 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
945 case ES_NORMAL:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
946 if (es->honordefined &&
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
947 len == 7 && !memcmp(buf, "defined", 7)) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
948 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
949 es->state = ES_WANTLPAREN;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
950 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
951 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
952 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
953 if (m == NULL || m->inuse) {
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
954 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
955 } else if (!m->hasparams) {
155
e6eb15635a48 Don't shortcut macro expansion of non-parameter macros.
David A. Holland
parents: 152
diff changeset
956 es->curmacro = m;
e6eb15635a48 Don't shortcut macro expansion of non-parameter macros.
David A. Holland
parents: 152
diff changeset
957 expand_domacro(es, p);
e6eb15635a48 Don't shortcut macro expansion of non-parameter macros.
David A. Holland
parents: 152
diff changeset
958 es->curmacro = NULL;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
959 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
960 es->curmacro = m;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
961 es->state = ES_WANTLPAREN;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
962 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
963 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
964 case ES_WANTLPAREN:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
965 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
966 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
967 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
968 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
969 expand_got_word(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
970 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
971 /* "defined foo" means "defined(foo)" */
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
972 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
973 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
974 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
975 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
976 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
977 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
978 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
979 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
980 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
981 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
982 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
983 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
984 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
985 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
986
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
987 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
988 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
989 expand_got_lparen(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
990 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
991 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
992 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
993 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
994 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
995 case ES_WANTLPAREN:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
996 es->state = ES_NOARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
997 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
998 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
999 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1000 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1001 es->argparens++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1002 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1003 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1004 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1005 es->argparens++;
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_rparen(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_rparen(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 assert(es->argparens == 0);
117
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
1026 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
1027 /* 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
1028 expand_newarg(es, buf, 0);
c46959e2d9ef Handle empty arguments properly when there's more than one argument.
David A. Holland
parents: 107
diff changeset
1029 }
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1030 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1031 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1032 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1033 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1034 if (es->argparens > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1035 es->argparens--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1036 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1037 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1038 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1039 expand_domacro(es, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1040 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1041 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1042 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1043 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1044
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1045 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1046 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1047 expand_got_comma(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1048 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1049 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1050 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
1051 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1052 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1053 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
1054 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
1055 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
1056 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1057 expand_got_comma(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1058 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1059 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1060 assert(es->argparens == 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1061 expand_newarg(es, buf, 0);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1062 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1063 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1064 if (es->argparens > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1065 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1066 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1067 es->state = ES_NOARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1068 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1069 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1070 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1071 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1072
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1073 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1074 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1075 expand_got_other(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1076 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1077 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1078 case ES_NORMAL:
21
e3fab8f1b52c strip comments.
David A. Holland
parents: 19
diff changeset
1079 expand_send(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1080 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1081 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
1082 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
1083 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
1084 /* try again */
2b153df78214 Don't bomb out if a function-like macro is given no arguments.
David A. Holland
parents: 85
diff changeset
1085 expand_got_other(es, p, buf, len);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1086 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1087 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1088 expand_newarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1089 es->state = ES_HAVEARG;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1090 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1091 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1092 expand_appendarg(es, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1093 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1094 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1095 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1096
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1097 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1098 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1099 expand_got_eof(struct expstate *es, struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1100 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1101 switch (es->state) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1102 case ES_NORMAL:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1103 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1104 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
1105 expand_missingargs(es, p, false);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1106 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1107 case ES_NOARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1108 case ES_HAVEARG:
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1109 if (es->curmacro) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1110 complain(p, "Unclosed argument list for macro %s",
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1111 es->curmacro->name);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1112 } else {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1113 complain(p, "Unclosed argument list for defined()");
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1114 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1115 complain_fail();
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1116 expstate_destroyargs(es);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1117 break;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1118 }
88
36066289e31a Always send the expansion state an EOF.
David A. Holland
parents: 87
diff changeset
1119 expand_send_eof(es, p);
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1120 es->state = ES_NORMAL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1121 es->curmacro = NULL;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1122 es->argparens = 0;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1123 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1124
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1125 static
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1126 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1127 doexpand(struct expstate *es, struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1128 {
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1129 char *s;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1130 size_t x;
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1131 bool inquote = false;
128
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1132 char quote = '\0';
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1133
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1134 while (len > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1135 x = strspn(buf, ws);
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1136 if (x > len) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1137 /* XXX gross, need strnspn */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1138 x = len;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1139 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1140
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1141 if (x > 0) {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1142 expand_got_ws(es, p, buf, x);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1143 buf += x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1144 len -= x;
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1145 continue;
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1146 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1147
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1148 x = strspn(buf, alnum);
28
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1149 if (x > len) {
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1150 /* XXX gross, need strnspn */
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1151 x = len;
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1152 }
8a955e3dda2c two more tests, more fixes
David A. Holland
parents: 27
diff changeset
1153
145
a403605d3166 Fix handling of macros in quoted strings.
David A. Holland
parents: 144
diff changeset
1154 if (!inquote && x > 0) {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1155 expand_got_word(es, p, buf, x);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1156 buf += x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1157 len -= x;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1158 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1159 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1160
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1161 if (!inquote && len > 1 && buf[0] == '/' && buf[1] == '*') {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1162 s = strstr(buf, "*/");
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1163 if (s) {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1164 x = s - buf;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1165 } else {
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1166 x = len;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1167 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1168 expand_got_ws(es, p, buf, x);
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1169 buf += x;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1170 len -= x;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1171 continue;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1172 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1173
129
2e1496dd96c4 Don't recognize macro argument parens or commas within quotes.
David A. Holland
parents: 128
diff changeset
1174 if (!inquote && buf[0] == '(') {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1175 expand_got_lparen(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1176 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1177 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1178 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1179 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1180
129
2e1496dd96c4 Don't recognize macro argument parens or commas within quotes.
David A. Holland
parents: 128
diff changeset
1181 if (!inquote && buf[0] == ')') {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1182 expand_got_rparen(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1183 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1184 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1185 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1186 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1187
129
2e1496dd96c4 Don't recognize macro argument parens or commas within quotes.
David A. Holland
parents: 128
diff changeset
1188 if (!inquote && buf[0] == ',') {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1189 expand_got_comma(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1190 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1191 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1192 continue;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1193 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1194
128
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1195 if (len > 1 && buf[0] == '\\' &&
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1196 (buf[1] == '"' || buf[1] == '\'')) {
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1197 expand_got_other(es, p, buf, 2);
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1198 buf += 2;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1199 len -= 2;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1200 continue;
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1201 }
128
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1202 if (!inquote && (buf[0] == '"' || buf[0] == '\'')) {
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1203 inquote = true;
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1204 quote = buf[0];
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1205 } else if (inquote && buf[0] == quote) {
1cda505ddc78 Don't expand macros within character constants.
David A. Holland
parents: 118
diff changeset
1206 inquote = false;
85
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1207 }
c91dc1315745 Don't expand macros inside comments.
David A. Holland
parents: 84
diff changeset
1208
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1209 expand_got_other(es, p, buf, 1);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1210 buf++;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1211 len--;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1212 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1213 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1214
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1215 char *
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1216 macroexpand(struct place *p, char *buf, size_t len, bool honordefined)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1217 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1218 struct expstate es;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1219 char *ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1220
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1221 expstate_init(&es, true, honordefined);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1222 doexpand(&es, p, buf, len);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1223 expand_got_eof(&es, p);
40
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1224
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1225 /* trim to fit, so the malloc debugging won't complain */
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1226 es.buf = dorealloc(es.buf, es.bufmax, strlen(es.buf) + 1);
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1227
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1228 ret = es.buf;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1229 es.buf = NULL;
39
337110e7240a Pass the size to free; it makes debug checking easier.
David A. Holland
parents: 38
diff changeset
1230 es.bufpos = es.bufmax = 0;
40
291fefe664f2 Oops, fix previous.
David A. Holland
parents: 39
diff changeset
1231
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1232 expstate_cleanup(&es);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1233
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1234 return ret;
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1235 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1236
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1237 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1238 macro_sendline(struct place *p, char *buf, size_t len)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1239 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1240 doexpand(&mainstate, p, buf, len);
162
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1241 switch (mainstate.state) {
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1242 case ES_NORMAL:
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1243 output(p, "\n", 1);
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1244 break;
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1245 case ES_WANTLPAREN:
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1246 case ES_NOARG:
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1247 case ES_HAVEARG:
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1248 expand_got_ws(&mainstate, p, " ", 1);
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1249 break;
82cc6fa54b01 newline during a macro invocation counts as space. Behavior differs from
Joerg Sonnenberger <joerg@bec.de>
parents: 161
diff changeset
1250 }
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1251 }
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1252
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1253 void
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1254 macro_sendeof(struct place *p)
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1255 {
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1256 expand_got_eof(&mainstate, p);
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1257 }
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1258
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1259 ////////////////////////////////////////////////////////////
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1260 // module initialization
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1261
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1262 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1263 macros_init(void)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1264 {
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1265 macrotable_init();
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1266 expstate_init(&mainstate, false, false);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1267 }
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1268
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1269 void
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1270 macros_cleanup(void)
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1271 {
19
f9792a9ec704 macro expansion.
David A. Holland
parents: 18
diff changeset
1272 expstate_cleanup(&mainstate);
17
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1273 macrotable_cleanup();
76da41da923f added macro table
David A. Holland
parents:
diff changeset
1274 }