78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* $XConsortium: findpar.c /main/3 1995/11/08 10:52:30 rswiston $ */
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/*
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Copyright 1989 Hewlett-Packard Co.
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*/
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#include <stdio.h>
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#include "basic.h"
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#include "trie.h"
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#include "dtdext.h"
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#include "parser.h"
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/* Function callable by interface designers. Returns index in parameter
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list of a specified parameter for an element (i.e., 1 for first parameter
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specified in the DTD, 2 for second, etc.). First parameter, elt, is
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the name of the element. Second parameter is the name of the parameter
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or NULL. Third parameter is used only if second parameter is NULL. In
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the latter case, function returns first keyword parameter, if any, for
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which the specified value is a legal value and otherwise first
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Returns 0 if elt is not a valid element name, if param is specified
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but is not a valid parameter name, or if param is NULL and value is
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not a valid value of any of elt's parameters. */
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#if defined(M_PROTO)
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int m_findpar( const char *elt , const char *param , const M_WCHAR *value )
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#else
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int m_findpar(elt, param, value)
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char *elt ;
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char *param ;
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M_WCHAR *value ;
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#endif /* M_PROTO */
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{
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M_ELEMENT eltid ;
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int par ;
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int i ;
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M_WCHAR *wc_elt;
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wc_elt = MakeWideCharString(elt);
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if (! (eltid = m_packedlook(m_entree, wc_elt)))
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{
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m_free(wc_elt,"wide character string");
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return(M_NULLVAL) ;
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}
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m_free(wc_elt,"wide character string");
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/* A parameter name specified */
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if (param)
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{
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for (par = m_element[eltid - 1].parptr, i = 1 ;
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i <= m_element[eltid - 1].parcount ;
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par++, i++)
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if (!m_wcmbupstrcmp(&m_pname[m_parameter[par - 1].paramname], param))
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return(i) ;
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return(M_NULLVAL) ;
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}
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/* No parameter name specified */
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/* First check is it a valid keyword? */
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for (par = m_element[eltid - 1].parptr, i = 1 ;
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i <= m_element[eltid - 1].parcount ;
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par++, i++)
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if (m_parameter[par - 1].type == M_KEYWORD)
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if (m_partype(par, value)) return(i) ;
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/* It wasn't a keyword. Check for valid value for some other parameter.*/
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for (par = m_element[eltid - 1].parptr, i = 1 ;
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i <= m_element[eltid - 1].parcount ;
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par++, i++)
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{
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if (m_parameter[par - 1].type == M_KEYWORD) continue ;
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if (m_partype(par, value)) return(i) ;
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}
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/* Not a valid value for any parameter */
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return(M_NULLVAL) ;
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}
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