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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define BSIZE 8192
typedef struct Scanner
{
FILE *fp;
unsigned char *cur, *tok, *lim, *eof;
unsigned char buffer[BSIZE];
} Scanner;
int fill(Scanner *s, int len)
{
if (!len)
{
s->cur = s->tok = s->lim = s->buffer;
s->eof = 0;
}
if (!s->eof)
{
int got, cnt = s->tok - s->buffer;
if (cnt > 0)
{
memcpy(s->buffer, s->tok, s->lim - s->tok);
s->tok -= cnt;
s->cur -= cnt;
s->lim -= cnt;
}
cnt = BSIZE - cnt;
if ((got = fread(s->lim, 1, cnt, s->fp)) != cnt)
{
s->eof = &s->lim[got];
}
s->lim += got;
}
else if (s->cur + len > s->eof)
{
return 0; /* not enough input data */
}
return -1;
}
void fputl(const char *s, size_t len, FILE *stream)
{
while(len-- > 0)
{
fputc(*s++, stream);
}
}
/*!types:re2c */
void scan(Scanner *s)
{
int cond = EStateR1;
fill(s, 0);
for(;;)
{
s->tok = s->cur;
/*!re2c
re2c:define:YYCTYPE = "unsigned char";
re2c:define:YYCURSOR = s->cur;
re2c:define:YYLIMIT = s->lim;
re2c:define:YYMARKER = s->tok;
re2c:define:YYFILL@len = #;
re2c:define:YYFILL:naked= 1;
re2c:define:YYFILL = "{ if(fill(s, #) >= 0) break; }";
re2c:define:YYGETCONDITION = cond;
re2c:define:YYGETCONDITION:naked = 1;
re2c:yyfill:parameter = 0;
re2c:indent:top = 2;
re2c:condenumprefix = EState;
NUM = [0-9];
ALNUM = NUM|[a-zA-Z];
ANY = [^];
<R1> ALNUM+
{
continue;
}
<R1> ANY
{
continue;
}
<R2> ALNUM+
{
continue;
}
<R2> ANY
{
continue;
}
*/
}
}
int main(int argc, char **argv)
{
Scanner in;
char c;
if (argc != 2)
{
fprintf(stderr, "%s <file>\n", argv[0]);
return 1;;
}
memset((char*) &in, 0, sizeof(in));
if (!strcmp(argv[1], "-"))
{
in.fp = stdin;
}
else if ((in.fp = fopen(argv[1], "r")) == NULL)
{
fprintf(stderr, "Cannot open file '%s'\n", argv[1]);
return 1;
}
scan(&in);
if (in.fp != stdin)
{
fclose(in.fp);
}
return 0;
}
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