diff options
Diffstat (limited to 'gnu/usr.bin/rcs/lib/rcskeys.c')
-rw-r--r-- | gnu/usr.bin/rcs/lib/rcskeys.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/gnu/usr.bin/rcs/lib/rcskeys.c b/gnu/usr.bin/rcs/lib/rcskeys.c new file mode 100644 index 0000000..82850a7 --- /dev/null +++ b/gnu/usr.bin/rcs/lib/rcskeys.c @@ -0,0 +1,102 @@ +/* + * RCS keyword table and match operation + */ + +/* Copyright (C) 1982, 1988, 1989 Walter Tichy + Copyright 1990, 1991 by Paul Eggert + Distributed under license by the Free Software Foundation, Inc. + +This file is part of RCS. + +RCS is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +RCS is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with RCS; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + +Report problems and direct all questions to: + + rcs-bugs@cs.purdue.edu + +*/ + + + +/* $Log: rcskeys.c,v $ + * Revision 5.2 1991/08/19 03:13:55 eggert + * Say `T const' instead of `const T'; it's less confusing for pointer types. + * (This change was made in other source files too.) + * + * Revision 5.1 1991/04/21 11:58:25 eggert + * Don't put , just before } in initializer. + * + * Revision 5.0 1990/08/22 08:12:54 eggert + * Add -k. Ansify and Posixate. + * + * Revision 4.3 89/05/01 15:13:02 narten + * changed copyright header to reflect current distribution rules + * + * Revision 4.2 87/10/18 10:36:33 narten + * Updating version numbers. Changes relative to 1.1 actuallyt + * relative to 4.1 + * + * Revision 1.2 87/09/24 14:00:10 narten + * Sources now pass through lint (if you ignore printf/sprintf/fprintf + * warnings) + * + * Revision 4.1 83/05/04 10:06:53 wft + * Initial revision. + * + */ + + +#include "rcsbase.h" + +libId(keysId, "$Id: rcskeys.c,v 5.2 1991/08/19 03:13:55 eggert Exp $") + + +char const *const Keyword[] = { + /* This must be in the same order as rcsbase.h's enum markers type. */ + nil, + AUTHOR, DATE, HEADER, IDH, + LOCKER, LOG, RCSFILE, REVISION, SOURCE, STATE +}; + + + + enum markers +trymatch(string) + char const *string; +/* function: Checks whether string starts with a keyword followed + * by a KDELIM or a VDELIM. + * If successful, returns the appropriate marker, otherwise Nomatch. + */ +{ + register int j; + register char const *p, *s; + for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); ) { + /* try next keyword */ + p = Keyword[j]; + s = string; + while (*p++ == *s++) { + if (!*p) + switch (*s) { + case KDELIM: + case VDELIM: + return (enum markers)j; + default: + return Nomatch; + } + } + } + return(Nomatch); +} + |