124 lines
2.9 KiB
Text
124 lines
2.9 KiB
Text
%{
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#include <glib.h>
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#include "config.h"
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static char *yyfilename;
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static int yylineno = 1;
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static gboolean haserror = FALSE;
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static gboolean comment = FALSE;
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static ConfigEntry entry = { NULL, -1 };
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static void stringvalue();
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static void numbervalue();
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static void boolvalue();
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static void identifier();
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static void newline();
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static int yywrap();
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%}
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number [0-9]+
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string \"[^"\n]*\"
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identifier [a-zA-Z][a-zA-Z0-9_.]*
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white [ \t]*
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assign {white}={white}
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bool ([tT][rR][uU][eE]|[fF][aA][lL][sS][eE]|[yY][eE][sS]|[nN][oO]|[oO][nN]|[oO][fF][fF])
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%%
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^# comment = TRUE;
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{bool}/{white}\n boolvalue();
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{string}/{white}\n stringvalue();
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{number}/{white}\n numbervalue();
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^{identifier}/{assign} identifier();
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\n newline();
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=
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[ \t]
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. if (!comment) haserror = TRUE;
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%%
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static void stringvalue()
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{
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if (!comment) {
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if (!haserror && entry.name != NULL && (signed)entry.type < 0) {
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entry.type = Config_String;
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entry.value.string = g_strdup(yytext+1); /* drop the left quote */
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if (entry.value.string[yyleng-2] != '"')
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printf("warning: improperly terminated string on line %d\n",
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yylineno);
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else
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entry.value.string[yyleng-2] = '\0';
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} else
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haserror = TRUE;
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}
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}
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static void numbervalue()
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{
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if (!comment) {
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if (!haserror && entry.name != NULL && (signed)entry.type < 0) {
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entry.type = Config_Integer;
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entry.value.integer = atoi(yytext);
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} else
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haserror = TRUE;
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}
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}
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static void boolvalue()
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{
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if (!comment) {
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if (!haserror && entry.name != NULL && (signed)entry.type < 0) {
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entry.type = Config_Bool;
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entry.value.bool = (!g_ascii_strcasecmp("true", yytext) ||
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!g_ascii_strcasecmp("yes", yytext) ||
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!g_ascii_strcasecmp("on", yytext));
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} else
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haserror = TRUE;
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}
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}
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static void identifier()
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{
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if (!comment) {
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entry.name = g_strdup(yytext);
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entry.type = -1;
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}
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}
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static void newline()
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{
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if (!comment) {
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if (!haserror && entry.name != NULL && (signed)entry.type >= 0) {
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if (!config_set(entry.name, entry.type, entry.value))
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g_warning("Parser error in '%s' on line %d\n", yyfilename,
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yylineno);
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} else {
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g_warning("Parser error in '%s' on line %d", yyfilename, yylineno);
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}
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g_free(entry.name);
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entry.name = NULL;
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if (entry.type == Config_String)
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g_free(entry.value.string);
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entry.type = -1;
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haserror = FALSE;
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}
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comment = FALSE;
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++yylineno;
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}
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static int yywrap()
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{
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g_free(entry.name);
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entry.name = NULL;
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if (entry.type == Config_String)
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g_free(entry.value.string);
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return 1;
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}
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void cparse_go(char *filename, FILE *file)
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{
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yyfilename = filename;
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yyin = file;
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yylex();
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}
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