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fix regular expression matcher. 

the string "xc" was failing to match "x[[a|b]|c]"
This commit is contained in:
dbj 2002-08-06 03:39:44 +00:00
parent 1cbfe6af00
commit a7d4c58694
1 changed files with 8 additions and 7 deletions
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15
games/quiz/rxp.c
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@ -1,4 +1,4 @@
/* $NetBSD: rxp.c,v 1.7 1999/09/08 21:17:56 jsm Exp $ */
/* $NetBSD: rxp.c,v 1.8 2002/08/06 03:39:44 dbj Exp $ */
/*-
* Copyright (c) 1991, 1993
@ -42,7 +42,7 @@
#if 0
static char sccsid[] = "@(#)rxp.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: rxp.c,v 1.7 1999/09/08 21:17:56 jsm Exp $");
__RCSID("$NetBSD: rxp.c,v 1.8 2002/08/06 03:39:44 dbj Exp $");
#endif
#endif /* not lint */
@ -227,7 +227,7 @@ rxp__match(s, first, j_succ, j_fail, sp_fail)
if (ch != *sp++) {
rp = j_fail;
sp = sp_fail;
return (TRUE);
return (FALSE);
}
rp++;
break;
@ -247,16 +247,17 @@ rxp__match(s, first, j_succ, j_fail, sp_fail)
break;
case ALT_S:
rp++;
if ((err = rxp__match(sp,
FALSE, grp_end, rxpbuf + *rp++, sp)) != TRUE)
return (err);
rxp__match(sp, FALSE, grp_end, rxpbuf + *rp++, sp);
break;
case ALT_E:
rp = j_succ;
return (TRUE);
case GRP_E:
default:
rp = j_fail;
sp = sp_fail;
return (FALSE);
default:
abort();
}
return (*rp != END ? FALSE : TRUE);
}