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