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Diffstat (limited to 'generic/regfronts.c')
-rw-r--r-- | generic/regfronts.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/generic/regfronts.c b/generic/regfronts.c new file mode 100644 index 0000000..088a640 --- /dev/null +++ b/generic/regfronts.c @@ -0,0 +1,91 @@ +/* + * regcomp and regexec - front ends to re_ routines + * + * Mostly for implementation of backward-compatibility kludges. Note that + * these routines exist ONLY in char versions. + * + * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved. + * + * Development of this software was funded, in part, by Cray Research Inc., + * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics + * Corporation, none of whom are responsible for the results. The author + * thanks all of them. + * + * Redistribution and use in source and binary forms -- with or without + * modification -- are permitted for any purpose, provided that + * redistributions in source form retain this entire copyright notice and + * indicate the origin and nature of any modifications. + * + * I'd appreciate being given credit for this package in the documentation of + * software which uses it, but that is not a requirement. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "regguts.h" + +/* + - regcomp - compile regular expression + */ +int +regcomp( + regex_t *re, + const char *str, + int flags) +{ + size_t len; + int f = flags; + + if (f®_PEND) { + len = re->re_endp - str; + f &= ~REG_PEND; + } else { + len = strlen(str); + } + + return re_comp(re, str, len, f); +} + +/* + - regexec - execute regular expression + */ +int +regexec( + regex_t *re, + const char *str, + size_t nmatch, + regmatch_t pmatch[], + int flags) +{ + const char *start; + size_t len; + int f = flags; + + if (f & REG_STARTEND) { + start = str + pmatch[0].rm_so; + len = pmatch[0].rm_eo - pmatch[0].rm_so; + f &= ~REG_STARTEND; + } else { + start = str; + len = strlen(str); + } + + return re_exec(re, start, len, nmatch, pmatch, f); +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |