annotate macro.c @ 76:7dba4436cff9

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