cdesktopenv/cde/programs/dthelp/parser/pass1/parser/pardef.c

62 lines
2.0 KiB
C

/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/* $XConsortium: pardef.c /main/3 1995/11/08 10:22:42 rswiston $ */
/*
Copyright 1989 Hewlett-Packard Co.
*/
#include <stdio.h>
#include "basic.h"
#include "trie.h"
#include "dtdext.h"
#include "parser.h"
/* Function callable by interface designers. Returns pointer to default
value of a parameter of an element. Type is set to indicate type of
default. Error indication is type is 0 and function returns NULL. */
M_WCHAR *m_pardefault(elt, param, type)
M_WCHAR *elt ;
M_WCHAR *param ;
unsigned char *type ;
{
M_ELEMENT eltid ;
int par ;
int i ;
*type = M_NULLVAL ;
if (! (eltid = m_packedlook(m_entree, elt))) return(NULL) ;
for (par = m_element[eltid - 1].parptr, i = 0 ;
i < m_element[eltid - 1].parcount ;
par++, i++)
if (! m_wcupstrcmp(&m_pname[m_parameter[par - 1].paramname], param)) {
*type = (unsigned char) m_parameter[par - 1].deftype ;
if (*type == M_REQUIRED || *type == M_NULLDEF) return(NULL) ;
return(m_parameter[par -1].defval) ;
}
/* Can't find the parameter */
return(NULL) ;
}