1/*
2 * regcomp and regexec - front ends to re_ routines
3 *
4 * Mostly for implementation of backward-compatibility kludges. Note that
5 * these routines exist ONLY in char versions.
6 *
7 * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
8 *
9 * Development of this software was funded, in part, by Cray Research Inc.,
10 * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
11 * Corporation, none of whom are responsible for the results.  The author
12 * thanks all of them.
13 *
14 * Redistribution and use in source and binary forms -- with or without
15 * modification -- are permitted for any purpose, provided that
16 * redistributions in source form retain this entire copyright notice and
17 * indicate the origin and nature of any modifications.
18 *
19 * I'd appreciate being given credit for this package in the documentation of
20 * software which uses it, but that is not a requirement.
21 *
22 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
23 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
24 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
25 * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include "regguts.h"
35
36/*
37 - regcomp - compile regular expression
38 */
39int
40regcomp(
41    regex_t *re,
42    CONST char *str,
43    int flags)
44{
45    size_t len;
46    int f = flags;
47
48    if (f&REG_PEND) {
49	len = re->re_endp - str;
50	f &= ~REG_PEND;
51    } else {
52	len = strlen(str);
53    }
54
55    return re_comp(re, str, len, f);
56}
57
58/*
59 - regexec - execute regular expression
60 */
61int
62regexec(
63    regex_t *re,
64    CONST char *str,
65    size_t nmatch,
66    regmatch_t pmatch[],
67    int flags)
68{
69    CONST char *start;
70    size_t len;
71    int f = flags;
72
73    if (f & REG_STARTEND) {
74	start = str + pmatch[0].rm_so;
75	len = pmatch[0].rm_eo - pmatch[0].rm_so;
76	f &= ~REG_STARTEND;
77    } else {
78	start = str;
79	len = strlen(str);
80    }
81
82    return re_exec(re, start, len, nmatch, pmatch, f);
83}
84
85/*
86 * Local Variables:
87 * mode: c
88 * c-basic-offset: 4
89 * fill-column: 78
90 * End:
91 */
92