171 lines
5.5 KiB
C
171 lines
5.5 KiB
C
/*
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* COMPONENT_NAME: BLDPROCESS
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*
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* FUNCTIONS: defined
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* nxtarg
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*
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* ORIGINS: 27,71
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*
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* This module contains IBM CONFIDENTIAL code. -- (IBM
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* Confidential Restricted when combined with the aggregated
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* modules for this product)
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* SOURCE MATERIALS
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*
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* (C) COPYRIGHT International Business Machines Corp. 1994
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* All Rights Reserved
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* US Government Users Restricted Rights - Use, duplication or
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* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
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*/
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/*
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* @OSF_FREE_COPYRIGHT@
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* COPYRIGHT NOTICE
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* Copyright (c) 1992, 1991, 1990
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* Open Software Foundation, Inc.
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*
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* Permission is hereby granted to use, copy, modify and freely distribute
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* the software in this file and its documentation for any purpose without
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* fee, provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation. Further, provided that the name of Open
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* Software Foundation, Inc. ("OSF") not be used in advertising or
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* publicity pertaining to distribution of the software without prior
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* written permission from OSF. OSF makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* Copyright (c) 1992 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software_Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* HISTORY
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* $Log: nxtarg.c,v $
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* Revision 1.7.7.1 1993/11/10 19:18:05 damon
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* CR 463. Removed unsigned from call to skipto
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* [1993/11/10 19:17:55 damon]
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*
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* Revision 1.7.5.3 1993/04/28 14:35:56 damon
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* CR 463. More pedantic changes
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* [1993/04/28 14:34:43 damon]
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*
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* Revision 1.7.5.2 1993/04/27 21:45:31 damon
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* CR 463. Made pedantic changes
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* [1993/04/27 21:45:21 damon]
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*
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* Revision 1.7.2.3 1992/12/03 17:21:18 damon
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* ODE 2.2 CR 183. Added CMU notice
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* [1992/12/03 17:08:28 damon]
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*
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* Revision 1.7.2.2 1992/12/02 20:26:23 damon
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* ODE 2.2 CR 183. Added CMU notice
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* [1992/12/02 20:23:23 damon]
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*
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* Revision 1.7 1991/12/05 21:05:25 devrcs
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* Added _FREE_ to copyright marker
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* [91/08/01 08:11:38 mckeen]
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*
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* rcsid/RCSfile header cleanup
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* [90/12/01 17:24:35 dwm]
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*
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* Revision 1.5 90/10/07 20:03:46 devrcs
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* Added EndLog Marker.
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* [90/09/28 20:09:43 gm]
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*
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* Revision 1.4 90/08/09 14:23:24 devrcs
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* Moved here from usr/local/sdm/lib/libsb.
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* [90/08/05 12:47:27 gm]
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*
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* Revision 1.3 90/06/29 14:38:55 devrcs
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* Moved here from defunct libcs library.
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* [90/06/23 14:21:25 gm]
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*
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* Revision 1.2 90/01/02 19:27:05 gm
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* Fixes for first snapshot.
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*
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* Revision 1.1 89/12/26 10:15:05 gm
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* Current version from CMU.
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* [89/12/23 gm]
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*
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* Bug fix: added check for "back >= front" in loop to chop trailing
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* white space.
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* [83/07/01 sas]
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*
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* Rewritten for VAX. By popular demand, a table of break characters
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* has been added (implemented as a string passed into nxtarg).
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* [79/11/20 sas]
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*
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* $EndLog$
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*/
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#if !defined(lint) && !defined(_NOIDENT)
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static char rcsid[] = "@(#)$RCSfile: nxtarg.c,v $ $Revision: 1.7.7.1 $ (OSF) $Date: 1993/11/10 19:18:05 $";
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#endif
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/*
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* nxtarg -- strip off arguments from a string
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*
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* Usage: p = nxtarg (&q,brk);
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* char *p,*q,*brk;
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* extern char _argbreak;
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*
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* q is pointer to next argument in string
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* after call, p points to string containing argument,
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* q points to remainder of string
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*
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* Leading blanks and tabs are skipped; the argument ends at the
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* first occurence of one of the characters in the string "brk".
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* When such a character is found, it is put into the external
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* variable "_argbreak", and replaced by a null character; if the
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* arg string ends before that, then the null character is
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* placed into _argbreak;
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* If "brk" is 0, then " " is substituted.
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*
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* Originally from klg (Ken Greer); IUS/SUS UNIX.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)94 1.1 src/bldenv/sbtools/libode/nxtarg.c, bldprocess, bos412, GOLDA411a 1/19/94 17:41:31";
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#endif /* not lint */
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#include <ode/util.h>
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char _argbreak;
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char *
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nxtarg ( char **q, const char *brk )
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{
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register char *front,*back;
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front = *q; /* start of string */
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/* leading blanks and tabs */
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while (*front && (*front == ' ' || *front == '\t')) front++;
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/* find break character at end */
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if (brk == 0) brk = " ";
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back = skipto (front,brk);
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_argbreak = *back;
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*q = (*back ? back+1 : back); /* next arg start loc */
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/* elim trailing blanks and tabs */
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back -= 1;
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while ((back >= front) && (*back == ' ' || *back == '\t')) back--;
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back++;
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if (*back) *back = '\0';
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return (front);
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}
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