| 9 |
|
|
| 10 |
|
#include "copyright.h" |
| 11 |
|
|
| 12 |
– |
#include <stdio.h> |
| 12 |
|
#include <stdlib.h> |
| 13 |
|
#include <ctype.h> |
| 15 |
– |
#include <string.h> |
| 14 |
|
|
| 15 |
+ |
#include "rtio.h" |
| 16 |
+ |
|
| 17 |
|
/* |
| 18 |
|
* rexpr.c - regular expression parser (ala grep) |
| 19 |
|
*/ |
| 32 |
|
|
| 33 |
|
#define same(a,b) (a==b || (iflag && (a^b)==' ' && isalpha(a))) |
| 34 |
|
|
| 35 |
– |
#ifdef BSD |
| 36 |
– |
#define memcpy(to,from,len) bcopy(from,to,len) |
| 37 |
– |
#endif |
| 35 |
|
|
| 36 |
< |
static int advance(), cclass(); |
| 36 |
> |
static int advance(char *, char *); |
| 37 |
> |
static int cclass(char *, int c, int af); |
| 38 |
|
|
| 39 |
|
static char expbuf[ESIZE]; |
| 40 |
|
static int iflag; |
| 47 |
|
register char *sp; |
| 48 |
|
int iflg, wflag; |
| 49 |
|
{ |
| 50 |
< |
register c; |
| 50 |
> |
register int c; |
| 51 |
|
register char *ep; |
| 52 |
< |
char *lastep; |
| 52 |
> |
char *lastep = NULL; |
| 53 |
|
int cclcnt; |
| 54 |
|
|
| 55 |
|
iflag = iflg; |
| 165 |
|
return(NULL); |
| 166 |
|
/* fast check for first character */ |
| 167 |
|
if (expbuf[0]==CCHR) { |
| 168 |
< |
register c = expbuf[1]; |
| 168 |
> |
register int c = expbuf[1]; |
| 169 |
|
while (*++sp) |
| 170 |
|
if (same(*sp, c) && advance(sp, expbuf)) |
| 171 |
|
return(sp); |
| 269 |
|
static int |
| 270 |
|
cclass(set, c, af) |
| 271 |
|
register char *set; |
| 272 |
< |
register c; |
| 272 |
> |
register int c; |
| 273 |
|
int af; |
| 274 |
|
{ |
| 275 |
< |
register n; |
| 275 |
> |
register int n; |
| 276 |
|
|
| 277 |
|
if (c == 0) |
| 278 |
|
return(0); |
