| 24 |
|
|
| 25 |
|
#define same(a,b) (a==b || (iflag && (a^b)==' ' && isalpha(a))) |
| 26 |
|
|
| 27 |
+ |
#ifdef BSD |
| 28 |
+ |
#define memcpy(to,from,len) bcopy(from,to,len) |
| 29 |
+ |
#endif |
| 30 |
+ |
|
| 31 |
+ |
static int advance(), cclass(); |
| 32 |
+ |
|
| 33 |
|
static char expbuf[ESIZE]; |
| 34 |
|
static int iflag; |
| 35 |
|
static int circf; |
| 107 |
|
if ((c = *sp++) == '\0') |
| 108 |
|
return(-1); |
| 109 |
|
if (c == '<') { |
| 110 |
< |
*ep++ = CBRC; |
| 110 |
> |
if (ep == expbuf || ep[-1] != CBRC) |
| 111 |
> |
*ep++ = CBRC; |
| 112 |
|
continue; |
| 113 |
|
} |
| 114 |
|
if (c == '>') { |
| 149 |
|
} |
| 150 |
|
|
| 151 |
|
char * |
| 152 |
< |
eindex(sp) /* find the expression in str */ |
| 152 |
> |
eindex(sp) /* find the expression in string sp */ |
| 153 |
|
register char *sp; |
| 154 |
|
{ |
| 155 |
< |
if (circf) { |
| 156 |
< |
if (advance(sp, expbuf)) |
| 157 |
< |
return(sp); |
| 155 |
> |
/* check for match at beginning of line, watch CBRC */ |
| 156 |
> |
if (advance(sp, expbuf[0]==CBRC ? expbuf+1 : expbuf)) |
| 157 |
> |
return(sp); |
| 158 |
> |
if (circf) |
| 159 |
|
return(NULL); |
| 152 |
– |
} |
| 160 |
|
/* fast check for first character */ |
| 161 |
|
if (expbuf[0]==CCHR) { |
| 162 |
|
register c = expbuf[1]; |
| 163 |
< |
do { |
| 163 |
> |
while (*++sp) |
| 164 |
|
if (same(*sp, c) && advance(sp, expbuf)) |
| 165 |
|
return(sp); |
| 159 |
– |
} while (*sp++); |
| 166 |
|
return(NULL); |
| 167 |
|
} |
| 168 |
|
/* regular algorithm */ |
| 169 |
< |
do { |
| 169 |
> |
while (*++sp) |
| 170 |
|
if (advance(sp, expbuf)) |
| 171 |
|
return(sp); |
| 166 |
– |
} while (*sp++); |
| 172 |
|
return(NULL); |
| 173 |
|
} |
| 174 |
|
|
| 246 |
|
return(0); |
| 247 |
|
|
| 248 |
|
case CBRC: |
| 244 |
– |
if (lp == expbuf) |
| 245 |
– |
continue; |
| 249 |
|
if ((isalnum(*lp) || *lp == '_') && !(isalnum(lp[-1]) || lp[-1] == '_')) |
| 250 |
|
continue; |
| 251 |
|
return (0); |
