162 lines
4.8 KiB
C
162 lines
4.8 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* COMPONENT_NAME: austext
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*
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* FUNCTIONS: DtSearchAddMessage
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* DtSearchFreeMessages
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* DtSearchGetMessages
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* DtSearchHasMessages
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*
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* ORIGINS: 27
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*
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*
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* (C) COPYRIGHT International Business Machines Corp. 1995
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* All Rights Reserved
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* Licensed Materials - Property of IBM
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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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/********************** MSGS.C *****************************
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* $XConsortium: msgs.c /main/4 1996/05/07 13:40:27 drk $
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* August 1995.
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* Handles access to global ausapi_msglist for DtSearch.
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*
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* $Log$
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* Revision 2.2 1995/10/26 14:35:04 miker
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* Added prolog.
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*
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* Revision 2.1 1995/09/22 21:19:23 miker
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* Freeze DtSearch 0.1, AusText 2.1.8
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*/
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#include "SearchP.h"
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#include <stdlib.h>
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#define PROGNAME "MSGS"
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/****************************************/
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/* */
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/* DtSearchHasMessages */
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/* */
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/****************************************/
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int DtSearchHasMessages (void)
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{ return (ausapi_msglist != NULL); }
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/****************************************/
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/* */
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/* DtSearchFreeMessages */
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/* */
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/****************************************/
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void DtSearchFreeMessages (void)
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{ free_llist (&ausapi_msglist); }
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/****************************************/
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/* */
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/* DtSearchAddMessage */
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/* */
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/****************************************/
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/* Mallocs space for new message and appends copy of passed msg
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* to end of global msglist. This function allocates memory
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* for the messages--THE CALLER MUST FREE THE MESSAGES,
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* preferably using DtSearchFreeMessages() (free_llist()).
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* DtSearchAddMessage() was formerly called append_msglist() in msgutil.c.
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*/
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void DtSearchAddMessage (char *msg)
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{
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LLIST *new;
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LLIST **pp;
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new = austext_malloc (strlen(msg) + sizeof(LLIST) + 2,
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PROGNAME"47", NULL);
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new->link = NULL;
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new->data = new + 1; /* hop over exactly 1 LLIST structure */
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strcpy (new->data, msg);
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for ( pp = &ausapi_msglist; *pp != NULL; pp = &((*pp)->link) ) ;
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*pp = new;
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return;
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} /* DtSearchAddMessage() */
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/****************************************/
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/* */
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/* DtSearchGetMessages */
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/* */
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/****************************************/
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/* July 1994,
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* DtSearchGetMessages was formerly flatmessages().
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* Copies all msgs in ausapi_msglist into single, flat text buffer.
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*/
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char *DtSearchGetMessages (void)
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{
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char *targ, *src;
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size_t totlen = 0L;
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LLIST *llptr;
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static char *flatbuf = NULL;
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static size_t flatbufsz = 0L;
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/* Since function is often used as an arg in printf,
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* be sure to return something safe when there are no msgs.
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*/
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if (ausapi_msglist == NULL)
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return "";
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/* First Pass: Get the total length.
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* including room for inserted \n's.
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*/
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for (llptr = ausapi_msglist; llptr != NULL; llptr = llptr->link)
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totlen += strlen(llptr->data) + 2;
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if (totlen > flatbufsz) {
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if (flatbuf)
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free (flatbuf);
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flatbuf = austext_malloc (totlen + 4, PROGNAME"73", NULL);
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flatbufsz = totlen;
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}
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/* Second Pass: Copy the messages into the flat buffer.
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* Make sure there are no less than 2 \n's at end of each msg--
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* one to terminate msg (it may already be in the original
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* msg string) and an added one to separate from the next msg.
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*/
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targ = flatbuf;
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for (llptr = ausapi_msglist; llptr != NULL; llptr = llptr->link) {
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src = (char *) llptr->data;
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while (*src != 0)
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*targ++ = *src++;
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*targ++ = '\n';
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if (*(--src) != '\n')
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*targ++ = '\n';
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}
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/* Overlay the last two \n so the whole string won't end.
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* This prevents ugly spacing problems when function
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* is used directly in information dialog boxes. It also
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* means regular writes to stdout etc will usually have to
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* insert their own final \n.
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*/
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targ[-2] = 0;
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return flatbuf;
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} /* DtSearchGetMessages() */
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/********************** MSGS.C *****************************/
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