1 | /* -*- mode: C -*- */ |
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2 | /* ---------------------------------------------------------------------------- |
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3 | libconfig - A library for processing structured configuration files |
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4 | Copyright (C) 2005-2008 Mark A Lindner |
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5 | |
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6 | This file is part of libconfig. |
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7 | |
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8 | This library is free software; you can redistribute it and/or |
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9 | modify it under the terms of the GNU Lesser General Public License |
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10 | as published by the Free Software Foundation; either version 2.1 of |
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11 | the License, or (at your option) any later version. |
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12 | |
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13 | This library is distributed in the hope that it will be useful, but |
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14 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | Lesser General Public License for more details. |
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17 | |
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18 | You should have received a copy of the GNU Library General Public |
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19 | License along with this library; if not, see |
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20 | <http://www.gnu.org/licenses/>. |
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21 | ---------------------------------------------------------------------------- |
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22 | */ |
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23 | |
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24 | %defines |
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25 | %output="y.tab.c" |
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26 | %pure-parser |
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27 | %lex-param{void *scanner} |
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28 | %parse-param{void *scanner} |
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29 | %parse-param{struct parse_context *ctx} |
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30 | |
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31 | %{ |
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32 | #include <string.h> |
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33 | #include <stdlib.h> |
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34 | #include "libconfig.h" |
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35 | #ifdef WIN32 |
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36 | #include "wincompat.h" |
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37 | |
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38 | /* prevent warnings about redefined malloc/free in generated code: */ |
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39 | #ifndef _STDLIB_H |
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40 | #define _STDLIB_H |
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41 | #endif |
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42 | |
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43 | #include <malloc.h> |
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44 | #endif |
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45 | #include "private.h" |
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46 | |
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47 | /* these delcarations are provided to suppress compiler warnings */ |
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48 | extern int libconfig_yylex(); |
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49 | extern int libconfig_yyget_lineno(); |
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50 | |
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51 | static const char *err_array_elem_type = "mismatched element type in array"; |
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52 | static const char *err_duplicate_setting = "duplicate setting name"; |
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53 | |
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54 | #define IN_ARRAY() \ |
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55 | (ctx->parent && (ctx->parent->type == CONFIG_TYPE_ARRAY)) |
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56 | |
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57 | #define IN_LIST() \ |
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58 | (ctx->parent && (ctx->parent->type == CONFIG_TYPE_LIST)) |
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59 | |
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60 | #define CAPTURE_PARSE_POS(S) \ |
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61 | (S)->line = (unsigned int)libconfig_yyget_lineno(scanner) |
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62 | |
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63 | void libconfig_yyerror(void *scanner, struct parse_context *ctx, |
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64 | char const *s) |
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65 | { |
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66 | ctx->config->error_line = libconfig_yyget_lineno(scanner); |
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67 | ctx->config->error_text = s; |
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68 | } |
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69 | |
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70 | %} |
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71 | |
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72 | %union |
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73 | { |
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74 | long ival; |
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75 | long long llval; |
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76 | double fval; |
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77 | char *sval; |
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78 | } |
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79 | |
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80 | %token <ival> TOK_BOOLEAN TOK_INTEGER TOK_HEX |
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81 | %token <llval> TOK_INTEGER64 TOK_HEX64 |
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82 | %token <fval> TOK_FLOAT |
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83 | %token <sval> TOK_STRING TOK_NAME |
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84 | %token TOK_EQUALS TOK_NEWLINE TOK_ARRAY_START TOK_ARRAY_END TOK_LIST_START TOK_LIST_END TOK_COMMA TOK_GROUP_START TOK_GROUP_END TOK_END TOK_GARBAGE |
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85 | |
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86 | %% |
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87 | |
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88 | configuration: |
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89 | /* empty */ |
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90 | | setting_list |
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91 | ; |
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92 | |
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93 | setting_list: |
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94 | setting |
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95 | | setting_list setting |
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96 | ; |
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97 | |
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98 | setting_list_optional: |
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99 | /* empty */ |
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100 | | setting_list |
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101 | ; |
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102 | |
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103 | setting: |
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104 | TOK_NAME |
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105 | { |
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106 | ctx->setting = config_setting_add(ctx->parent, $1, CONFIG_TYPE_NONE); |
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107 | free($1); |
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108 | |
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109 | if(ctx->setting == NULL) |
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110 | { |
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111 | libconfig_yyerror(scanner, ctx, err_duplicate_setting); |
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112 | YYABORT; |
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113 | } |
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114 | else |
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115 | { |
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116 | CAPTURE_PARSE_POS(ctx->setting); |
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117 | } |
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118 | } |
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119 | |
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120 | TOK_EQUALS value TOK_END |
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121 | ; |
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122 | |
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123 | array: |
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124 | TOK_ARRAY_START |
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125 | { |
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126 | if(IN_LIST()) |
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127 | { |
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128 | ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_ARRAY); |
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129 | CAPTURE_PARSE_POS(ctx->parent); |
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130 | } |
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131 | else |
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132 | { |
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133 | ctx->setting->type = CONFIG_TYPE_ARRAY; |
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134 | ctx->parent = ctx->setting; |
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135 | ctx->setting = NULL; |
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136 | } |
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137 | } |
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138 | simple_value_list_optional |
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139 | TOK_ARRAY_END |
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140 | { |
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141 | if(ctx->parent) |
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142 | ctx->parent = ctx->parent->parent; |
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143 | } |
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144 | ; |
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145 | |
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146 | list: |
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147 | TOK_LIST_START |
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148 | { |
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149 | if(IN_LIST()) |
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150 | { |
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151 | ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_LIST); |
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152 | CAPTURE_PARSE_POS(ctx->parent); |
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153 | } |
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154 | else |
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155 | { |
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156 | ctx->setting->type = CONFIG_TYPE_LIST; |
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157 | ctx->parent = ctx->setting; |
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158 | ctx->setting = NULL; |
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159 | } |
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160 | } |
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161 | value_list_optional |
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162 | TOK_LIST_END |
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163 | { |
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164 | if(ctx->parent) |
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165 | ctx->parent = ctx->parent->parent; |
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166 | } |
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167 | ; |
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168 | |
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169 | value: |
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170 | simple_value |
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171 | | array |
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172 | | list |
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173 | | group |
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174 | ; |
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175 | |
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176 | simple_value: |
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177 | TOK_BOOLEAN |
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178 | { |
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179 | if(IN_ARRAY() || IN_LIST()) |
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180 | { |
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181 | config_setting_t *e = config_setting_set_bool_elem(ctx->parent, -1, |
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182 | (int)$1); |
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183 | |
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184 | if(! e) |
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185 | { |
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186 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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187 | YYABORT; |
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188 | } |
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189 | else |
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190 | { |
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191 | CAPTURE_PARSE_POS(e); |
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192 | } |
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193 | } |
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194 | else |
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195 | config_setting_set_bool(ctx->setting, (int)$1); |
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196 | } |
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197 | | TOK_INTEGER |
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198 | { |
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199 | if(IN_ARRAY() || IN_LIST()) |
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200 | { |
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201 | config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1); |
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202 | if(! e) |
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203 | { |
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204 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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205 | YYABORT; |
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206 | } |
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207 | else |
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208 | { |
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209 | config_setting_set_format(e, CONFIG_FORMAT_DEFAULT); |
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210 | CAPTURE_PARSE_POS(e); |
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211 | } |
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212 | } |
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213 | else |
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214 | { |
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215 | config_setting_set_int(ctx->setting, $1); |
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216 | config_setting_set_format(ctx->setting, CONFIG_FORMAT_DEFAULT); |
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217 | } |
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218 | } |
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219 | | TOK_INTEGER64 |
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220 | { |
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221 | if(IN_ARRAY() || IN_LIST()) |
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222 | { |
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223 | config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1); |
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224 | if(! e) |
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225 | { |
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226 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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227 | YYABORT; |
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228 | } |
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229 | else |
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230 | { |
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231 | config_setting_set_format(e, CONFIG_FORMAT_DEFAULT); |
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232 | CAPTURE_PARSE_POS(e); |
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233 | } |
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234 | } |
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235 | else |
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236 | { |
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237 | config_setting_set_int64(ctx->setting, $1); |
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238 | config_setting_set_format(ctx->setting, CONFIG_FORMAT_DEFAULT); |
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239 | } |
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240 | } |
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241 | | TOK_HEX |
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242 | { |
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243 | if(IN_ARRAY() || IN_LIST()) |
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244 | { |
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245 | config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1); |
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246 | if(! e) |
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247 | { |
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248 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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249 | YYABORT; |
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250 | } |
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251 | else |
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252 | { |
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253 | config_setting_set_format(e, CONFIG_FORMAT_HEX); |
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254 | CAPTURE_PARSE_POS(e); |
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255 | } |
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256 | } |
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257 | else |
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258 | { |
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259 | config_setting_set_int(ctx->setting, $1); |
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260 | config_setting_set_format(ctx->setting, CONFIG_FORMAT_HEX); |
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261 | } |
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262 | } |
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263 | | TOK_HEX64 |
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264 | { |
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265 | if(IN_ARRAY() || IN_LIST()) |
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266 | { |
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267 | config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1); |
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268 | if(! e) |
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269 | { |
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270 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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271 | YYABORT; |
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272 | } |
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273 | else |
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274 | { |
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275 | config_setting_set_format(e, CONFIG_FORMAT_HEX); |
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276 | CAPTURE_PARSE_POS(e); |
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277 | } |
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278 | } |
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279 | else |
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280 | { |
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281 | config_setting_set_int64(ctx->setting, $1); |
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282 | config_setting_set_format(ctx->setting, CONFIG_FORMAT_HEX); |
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283 | } |
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284 | } |
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285 | | TOK_FLOAT |
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286 | { |
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287 | if(IN_ARRAY() || IN_LIST()) |
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288 | { |
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289 | config_setting_t *e = config_setting_set_float_elem(ctx->parent, -1, $1); |
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290 | if(! e) |
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291 | { |
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292 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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293 | YYABORT; |
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294 | } |
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295 | else |
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296 | { |
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297 | CAPTURE_PARSE_POS(e); |
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298 | } |
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299 | } |
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300 | else |
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301 | config_setting_set_float(ctx->setting, $1); |
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302 | } |
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303 | | TOK_STRING |
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304 | { |
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305 | if(IN_ARRAY() || IN_LIST()) |
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306 | { |
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307 | config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1, |
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308 | $1); |
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309 | free($1); |
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310 | |
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311 | if(! e) |
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312 | { |
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313 | libconfig_yyerror(scanner, ctx, err_array_elem_type); |
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314 | YYABORT; |
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315 | } |
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316 | else |
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317 | { |
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318 | CAPTURE_PARSE_POS(e); |
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319 | } |
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320 | } |
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321 | else |
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322 | { |
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323 | config_setting_set_string(ctx->setting, $1); |
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324 | free($1); |
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325 | } |
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326 | } |
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327 | ; |
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328 | |
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329 | value_list: |
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330 | value |
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331 | | value_list TOK_COMMA value |
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332 | ; |
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333 | |
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334 | value_list_optional: |
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335 | /* empty */ |
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336 | | value_list |
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337 | ; |
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338 | |
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339 | simple_value_list: |
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340 | simple_value |
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341 | | simple_value_list TOK_COMMA simple_value |
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342 | ; |
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343 | |
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344 | simple_value_list_optional: |
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345 | /* empty */ |
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346 | | simple_value_list |
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347 | ; |
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348 | |
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349 | group: |
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350 | TOK_GROUP_START |
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351 | { |
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352 | if(IN_LIST()) |
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353 | { |
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354 | ctx->parent = config_setting_add(ctx->parent, NULL, CONFIG_TYPE_GROUP); |
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355 | CAPTURE_PARSE_POS(ctx->parent); |
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356 | } |
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357 | else |
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358 | { |
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359 | ctx->setting->type = CONFIG_TYPE_GROUP; |
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360 | ctx->parent = ctx->setting; |
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361 | ctx->setting = NULL; |
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362 | } |
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363 | } |
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364 | setting_list_optional |
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365 | TOK_GROUP_END |
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366 | { |
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367 | if(ctx->parent) |
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368 | ctx->parent = ctx->parent->parent; |
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369 | } |
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370 | ; |
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371 | |
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372 | %% |
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