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%{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
%}
%token KEY DIV VALUE
%union
{
char *value;
}
%%
value: VALUE {
$$.value = calloc(2, sizeof(char));
strcat($$.value, $1.value);
}
| value VALUE {
char *s = strdup($$.value);
$$.value = calloc(strlen(s) + strlen($2.value) + 1, sizeof(char));
strcat($$.value, s);
strcat($$.value, $2.value);
}
;
%%
extern FILE *yyin;
int
main(void)
{
do {
yyparse();
} while(!feof(yyin));
return EXIT_SUCCESS;
}
void
yyerror(char *s)
{
fprintf(stderr, "%s\n", s);
}
|