2 * oconfig - src/parser.y
3 * Copyright (C) 2007 Florian octo Forster <octo at verplant.org>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "aux_types.h"
25 static char *unquote (const char *orig);
26 static int yyerror (const char *s);
32 extern oconfig_item_t *ci_root;
48 %token <number> NUMBER
49 %token <boolean> TRUE FALSE
50 %token <string> QUOTED_STRING UNQUOTED_STRING
51 %token SLASH OPENBRAC CLOSEBRAC EOL
54 %type <string> identifier
57 %type <al> argument_list
59 %type <ci> block_begin
61 %type <string> block_end
65 %type <sl> statement_list
66 %type <ci> entire_file
70 QUOTED_STRING {$$ = unquote ($1);}
71 | UNQUOTED_STRING {$$ = strdup ($1);}
75 NUMBER {$$.value.number = $1; $$.type = OCONFIG_TYPE_NUMBER;}
76 | TRUE {$$.value.boolean = 1; $$.type = OCONFIG_TYPE_BOOLEAN;}
77 | FALSE {$$.value.boolean = 0; $$.type = OCONFIG_TYPE_BOOLEAN;}
78 | string {$$.value.string = $1; $$.type = OCONFIG_TYPE_STRING;}
82 argument_list argument
86 $$.argument = realloc ($$.argument, $$.argument_num * sizeof (oconfig_value_t));
87 $$.argument[$$.argument_num-1] = $2;
91 $$.argument = malloc (sizeof (oconfig_value_t));
98 UNQUOTED_STRING {$$ = strdup ($1);}
102 identifier argument_list EOL
104 memset (&$$, '\0', sizeof ($$));
106 $$.values = $2.argument;
107 $$.values_num = $2.argument_num;
112 OPENBRAC identifier argument_list CLOSEBRAC EOL
114 memset (&$$, '\0', sizeof ($$));
116 $$.values = $3.argument;
117 $$.values_num = $3.argument_num;
122 OPENBRAC SLASH identifier CLOSEBRAC EOL
129 block_begin statement_list block_end
131 if (strcmp ($1.key, $3) != 0)
133 printf ("block_begin = %s; block_end = %s;\n", $1.key, $3);
134 yyerror ("Block not closed..\n");
137 free ($3); $3 = NULL;
139 $$.children = $2.statement;
140 $$.children_num = $2.statement_num;
147 | EOL {$$.values_num = 0;}
151 statement_list statement
154 if ($2.values_num > 0)
157 $$.statement = realloc ($$.statement, $$.statement_num * sizeof (oconfig_item_t));
158 $$.statement[$$.statement_num-1] = $2;
163 if ($1.values_num > 0)
165 $$.statement = malloc (sizeof (oconfig_item_t));
166 $$.statement[0] = $1;
167 $$.statement_num = 1;
172 $$.statement_num = 0;
180 ci_root = malloc (sizeof (oconfig_item_t));
181 memset (ci_root, '\0', sizeof (oconfig_item_t));
182 ci_root->children = $1.statement;
183 ci_root->children_num = $1.statement_num;
188 static int yyerror (const char *s)
197 fprintf (stderr, "Parse error in file `%s', line %i near `%s': %s\n",
198 c_file, yylineno, text, s);
202 static char *unquote (const char *orig)
204 char *ret = strdup (orig);
213 if ((len < 2) || (ret[0] != '"') || (ret[len - 1] != '"'))
220 for (i = 0; i < len; i++)
224 memmove (ret + i, ret + (i + 1), len - i);
230 } /* char *unquote */