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/* Generated by re2c */
#line 1 "calc_004.re"
// re2c $INPUT -o $OUTPUT
/* re2c lesson 001_upn_calculator, calc_004, (c) M. Boerger 2006 - 2007 */
#line 20 "calc_004.re"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
char * tokendup(const char *t, const char *l)
{
size_t n = l -t + 1;
char *r = (char*)malloc(n);
memmove(r, t, n-1);
r[n] = '\0';
return r;
}
int scan(char *s, int l)
{
char *p = s;
char *q = 0;
char *t;
#define YYCTYPE char
#define YYCURSOR p
#define YYLIMIT (s+l+2)
#define YYMARKER q
#define YYFILL(n) { printf("OOD\n"); return 2; }
for(;;)
{
t = p;
#line 38 "calc_004.c"
{
YYCTYPE yych;
if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2);
yych = *YYCURSOR;
switch (yych) {
case 0x00: goto yy1;
case '+': goto yy3;
case '-': goto yy4;
case '0': goto yy5;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': goto yy7;
default: goto yy2;
}
yy1:
++YYCURSOR;
#line 61 "calc_004.re"
{ printf("EOF\n"); return 0; }
#line 63 "calc_004.c"
yy2:
++YYCURSOR;
#line 62 "calc_004.re"
{ printf("ERR\n"); return 1; }
#line 68 "calc_004.c"
yy3:
++YYCURSOR;
#line 59 "calc_004.re"
{ printf("+\n"); continue; }
#line 73 "calc_004.c"
yy4:
++YYCURSOR;
#line 60 "calc_004.re"
{ printf("+\n"); continue; }
#line 78 "calc_004.c"
yy5:
yych = *++YYCURSOR;
switch (yych) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': goto yy8;
default: goto yy6;
}
yy6:
#line 58 "calc_004.re"
{ t = tokendup(t, p); printf("Num: %s\n", t); free(t); continue; }
#line 97 "calc_004.c"
yy7:
++YYCURSOR;
if (YYLIMIT <= YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
switch (yych) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': goto yy7;
default: goto yy6;
}
yy8:
++YYCURSOR;
if (YYLIMIT <= YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
switch (yych) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': goto yy8;
default: goto yy9;
}
yy9:
#line 57 "calc_004.re"
{ t = tokendup(t, p); printf("Oct: %s\n", t); free(t); continue; }
#line 135 "calc_004.c"
}
#line 63 "calc_004.re"
}
return 0;
}
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 0;
}
}
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