1/* $Id: minixml.c,v 1.1.1.1 2008/10/23 17:30:45 jmaggard Exp $ */ 2/* minixml.c : the minimum size a xml parser can be ! */ 3/* Project : miniupnp 4 * webpage: http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/ 5 * Author : Thomas Bernard 6 7Copyright (c) 2005-2007, Thomas BERNARD 8All rights reserved. 9 10Redistribution and use in source and binary forms, with or without 11modification, are permitted provided that the following conditions are met: 12 13 * Redistributions of source code must retain the above copyright notice, 14 this list of conditions and the following disclaimer. 15 * Redistributions in binary form must reproduce the above copyright notice, 16 this list of conditions and the following disclaimer in the documentation 17 and/or other materials provided with the distribution. 18 * The name of the author may not be used to endorse or promote products 19 derived from this software without specific prior written permission. 20 21THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 22AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 25LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31POSSIBILITY OF SUCH DAMAGE. 32*/ 33#include "minixml.h" 34 35/* parseatt : used to parse the argument list 36 * return 0 (false) in case of success and -1 (true) if the end 37 * of the xmlbuffer is reached. */ 38int parseatt(struct xmlparser * p) 39{ 40 const char * attname; 41 int attnamelen; 42 const char * attvalue; 43 int attvaluelen; 44 while(p->xml < p->xmlend) 45 { 46 if(*p->xml=='/' || *p->xml=='>') 47 return 0; 48 if( !IS_WHITE_SPACE(*p->xml) ) 49 { 50 char sep; 51 attname = p->xml; 52 attnamelen = 0; 53 while(*p->xml!='=' && !IS_WHITE_SPACE(*p->xml) ) 54 { 55 attnamelen++; p->xml++; 56 if(p->xml >= p->xmlend) 57 return -1; 58 } 59 while(*(p->xml++) != '=') 60 { 61 if(p->xml >= p->xmlend) 62 return -1; 63 } 64 while(IS_WHITE_SPACE(*p->xml)) 65 { 66 p->xml++; 67 if(p->xml >= p->xmlend) 68 return -1; 69 } 70 sep = *p->xml; 71 if(sep=='\'' || sep=='\"') 72 { 73 p->xml++; 74 if(p->xml >= p->xmlend) 75 return -1; 76 attvalue = p->xml; 77 attvaluelen = 0; 78 while(*p->xml != sep) 79 { 80 attvaluelen++; p->xml++; 81 if(p->xml >= p->xmlend) 82 return -1; 83 } 84 } 85 else 86 { 87 attvalue = p->xml; 88 attvaluelen = 0; 89 while( !IS_WHITE_SPACE(*p->xml) 90 && *p->xml != '>' && *p->xml != '/') 91 { 92 attvaluelen++; p->xml++; 93 if(p->xml >= p->xmlend) 94 return -1; 95 } 96 } 97 /*printf("%.*s='%.*s'\n", 98 attnamelen, attname, attvaluelen, attvalue);*/ 99 if(p->attfunc) 100 p->attfunc(p->data, attname, attnamelen, attvalue, attvaluelen); 101 } 102 p->xml++; 103 } 104 return -1; 105} 106 107/* parseelt parse the xml stream and 108 * call the callback functions when needed... */ 109void parseelt(struct xmlparser * p) 110{ 111 int i; 112 const char * elementname; 113 while(p->xml < (p->xmlend - 1)) 114 { 115 if((p->xml)[0]=='<' && (p->xml)[1]!='?') 116 { 117 i = 0; elementname = ++p->xml; 118 while( !IS_WHITE_SPACE(*p->xml) 119 && (*p->xml!='>') && (*p->xml!='/') 120 ) 121 { 122 i++; p->xml++; 123 if (p->xml >= p->xmlend) 124 return; 125 /* to ignore namespace : */ 126 if(*p->xml==':') 127 { 128 i = 0; 129 elementname = ++p->xml; 130 } 131 } 132 if(i>0) 133 { 134 if(p->starteltfunc) 135 p->starteltfunc(p->data, elementname, i); 136 if(parseatt(p)) 137 return; 138 if(*p->xml!='/') 139 { 140 const char * data; 141 i = 0; data = ++p->xml; 142 if (p->xml >= p->xmlend) 143 return; 144 while( IS_WHITE_SPACE(*p->xml) ) 145 { 146 p->xml++; 147 if (p->xml >= p->xmlend) 148 return; 149 } 150 while(*p->xml!='<') 151 { 152 i++; p->xml++; 153 if (p->xml >= p->xmlend) 154 return; 155 } 156 if(i>0 && p->datafunc) 157 p->datafunc(p->data, data, i); 158 } 159 } 160 else if(*p->xml == '/') 161 { 162 i = 0; elementname = ++p->xml; 163 if (p->xml >= p->xmlend) 164 return; 165 while((*p->xml != '>')) 166 { 167 i++; p->xml++; 168 if (p->xml >= p->xmlend) 169 return; 170 } 171 if(p->endeltfunc) 172 p->endeltfunc(p->data, elementname, i); 173 p->xml++; 174 } 175 } 176 else 177 { 178 p->xml++; 179 } 180 } 181} 182 183/* the parser must be initialized before calling this function */ 184void parsexml(struct xmlparser * parser) 185{ 186 parser->xml = parser->xmlstart; 187 parser->xmlend = parser->xmlstart + parser->xmlsize; 188 parseelt(parser); 189} 190 191 192