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229 lines
5.5 KiB
C
229 lines
5.5 KiB
C
/* $Id: minixml.c,v 1.10 2012/03/05 19:42:47 nanard Exp $ */
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/* minixml.c : the minimum size a xml parser can be ! */
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/* Project : miniupnp
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* webpage: http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
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* Author : Thomas Bernard
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Copyright (c) 2005-2014, Thomas BERNARD
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include "minixml.h"
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/* parseatt : used to parse the argument list
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* return 0 (false) in case of success and -1 (true) if the end
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* of the xmlbuffer is reached. */
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static int parseatt(struct xmlparser * p)
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{
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const char * attname;
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int attnamelen;
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const char * attvalue;
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int attvaluelen;
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while(p->xml < p->xmlend)
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{
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if(*p->xml=='/' || *p->xml=='>')
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return 0;
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if( !IS_WHITE_SPACE(*p->xml) )
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{
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char sep;
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attname = p->xml;
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attnamelen = 0;
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while(*p->xml!='=' && !IS_WHITE_SPACE(*p->xml) )
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{
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attnamelen++; p->xml++;
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if(p->xml >= p->xmlend)
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return -1;
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}
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while(*(p->xml++) != '=')
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{
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if(p->xml >= p->xmlend)
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return -1;
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}
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while(IS_WHITE_SPACE(*p->xml))
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{
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p->xml++;
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if(p->xml >= p->xmlend)
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return -1;
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}
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sep = *p->xml;
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if(sep=='\'' || sep=='\"')
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{
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p->xml++;
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if(p->xml >= p->xmlend)
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return -1;
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attvalue = p->xml;
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attvaluelen = 0;
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while(*p->xml != sep)
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{
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attvaluelen++; p->xml++;
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if(p->xml >= p->xmlend)
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return -1;
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}
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}
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else
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{
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attvalue = p->xml;
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attvaluelen = 0;
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while( !IS_WHITE_SPACE(*p->xml)
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&& *p->xml != '>' && *p->xml != '/')
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{
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attvaluelen++; p->xml++;
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if(p->xml >= p->xmlend)
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return -1;
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}
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}
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/*printf("%.*s='%.*s'\n",
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attnamelen, attname, attvaluelen, attvalue);*/
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if(p->attfunc)
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p->attfunc(p->data, attname, attnamelen, attvalue, attvaluelen);
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}
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p->xml++;
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}
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return -1;
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}
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/* parseelt parse the xml stream and
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* call the callback functions when needed... */
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static void parseelt(struct xmlparser * p)
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{
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int i;
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const char * elementname;
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while(p->xml < (p->xmlend - 1))
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{
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if((p->xml + 4) <= p->xmlend && (0 == memcmp(p->xml, "<!--", 4)))
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{
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p->xml += 3;
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/* ignore comments */
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do
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{
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p->xml++;
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if ((p->xml + 3) >= p->xmlend)
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return;
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}
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while(memcmp(p->xml, "-->", 3) != 0);
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p->xml += 3;
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}
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else if((p->xml)[0]=='<' && (p->xml)[1]!='?')
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{
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i = 0; elementname = ++p->xml;
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while( !IS_WHITE_SPACE(*p->xml)
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&& (*p->xml!='>') && (*p->xml!='/')
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)
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{
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i++; p->xml++;
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if (p->xml >= p->xmlend)
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return;
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/* to ignore namespace : */
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if(*p->xml==':')
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{
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i = 0;
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elementname = ++p->xml;
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}
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}
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if(i>0)
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{
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if(p->starteltfunc)
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p->starteltfunc(p->data, elementname, i);
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if(parseatt(p))
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return;
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if(*p->xml!='/')
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{
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const char * data;
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i = 0; data = ++p->xml;
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if (p->xml >= p->xmlend)
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return;
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while( IS_WHITE_SPACE(*p->xml) )
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{
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i++; p->xml++;
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if (p->xml >= p->xmlend)
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return;
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}
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if(memcmp(p->xml, "<![CDATA[", 9) == 0)
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{
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/* CDATA handling */
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p->xml += 9;
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data = p->xml;
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i = 0;
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while(memcmp(p->xml, "]]>", 3) != 0)
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{
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i++; p->xml++;
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if ((p->xml + 3) >= p->xmlend)
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return;
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}
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if(i>0 && p->datafunc)
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p->datafunc(p->data, data, i);
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while(*p->xml!='<')
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{
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p->xml++;
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if (p->xml >= p->xmlend)
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return;
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}
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}
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else
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{
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while(*p->xml!='<')
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{
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i++; p->xml++;
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if ((p->xml + 1) >= p->xmlend)
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return;
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}
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if(i>0 && p->datafunc && *(p->xml + 1) == '/')
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p->datafunc(p->data, data, i);
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}
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}
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}
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else if(*p->xml == '/')
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{
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i = 0; elementname = ++p->xml;
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if (p->xml >= p->xmlend)
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return;
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while((*p->xml != '>'))
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{
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i++; p->xml++;
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if (p->xml >= p->xmlend)
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return;
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}
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if(p->endeltfunc)
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p->endeltfunc(p->data, elementname, i);
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p->xml++;
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}
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}
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else
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{
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p->xml++;
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}
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}
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}
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/* the parser must be initialized before calling this function */
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void parsexml(struct xmlparser * parser)
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{
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parser->xml = parser->xmlstart;
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parser->xmlend = parser->xmlstart + parser->xmlsize;
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parseelt(parser);
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}
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