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// re2c $INPUT -o $OUTPUT -bci
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define YYGETCONDITION() yy_state
#define YYSETCONDITION(s) yy_state = s
#define YYCTYPE char
#define YYCURSOR p
#define YYLIMIT (s+l)
#define YYMARKER q
#define YYFILL(n)
#define STATE(name) yyc##name
static enum YYCONDTYPE yy_state;
/*!types:re2c */
int scan(char *s, int l)
{
char *p = s;
char *q = 0;
char *t;
for(;;)
{
t = p;
/*!re2c
re2c:indent:top = 2;
TABS_AND_SPACES = [ \t]*;
LITERAL_DOLLAR = "$"[a-zA-Z];
<INITIAL>LITERAL_DOLLAR {
printf("FOUND %s\n", t);
continue;
}
<ST_VALUE>LITERAL_DOLLAR+ {
printf("Found $ or $\\<x>\n");
continue;
}
<ST_VALUE>TABS_AND_SPACES {
YYSETCONDITION(STATE(INITIAL));
printf("Found spaces\n");
}
<INITIAL>"\000" { printf("EOF\n"); return 0; }
<INITIAL>[^] { printf("ERR\n"); return 1; }
*/
}
}
int main(int argc, char **argv)
{
if (argc > 1)
{
return scan(argv[1], strlen(argv[1]));
}
else
{
fprintf(stderr, "%s <expr>\n", argv[0]);
return 1;
}
}
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