Annotation of embedaddon/miniupnpc/minixml.c, revision 1.1
1.1 ! misho 1: /* $Id: minixml.c,v 1.9 2011/02/07 13:44:57 nanard 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:
! 7: Copyright (c) 2005-2011, Thomas BERNARD
! 8: All rights reserved.
! 9:
! 10: Redistribution and use in source and binary forms, with or without
! 11: modification, 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:
! 21: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
! 22: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
! 25: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 26: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 27: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 28: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 29: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 30: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 31: POSSIBILITY OF SUCH DAMAGE.
! 32: */
! 33: #include <string.h>
! 34: #include "minixml.h"
! 35:
! 36: /* parseatt : used to parse the argument list
! 37: * return 0 (false) in case of success and -1 (true) if the end
! 38: * of the xmlbuffer is reached. */
! 39: static int parseatt(struct xmlparser * p)
! 40: {
! 41: const char * attname;
! 42: int attnamelen;
! 43: const char * attvalue;
! 44: int attvaluelen;
! 45: while(p->xml < p->xmlend)
! 46: {
! 47: if(*p->xml=='/' || *p->xml=='>')
! 48: return 0;
! 49: if( !IS_WHITE_SPACE(*p->xml) )
! 50: {
! 51: char sep;
! 52: attname = p->xml;
! 53: attnamelen = 0;
! 54: while(*p->xml!='=' && !IS_WHITE_SPACE(*p->xml) )
! 55: {
! 56: attnamelen++; p->xml++;
! 57: if(p->xml >= p->xmlend)
! 58: return -1;
! 59: }
! 60: while(*(p->xml++) != '=')
! 61: {
! 62: if(p->xml >= p->xmlend)
! 63: return -1;
! 64: }
! 65: while(IS_WHITE_SPACE(*p->xml))
! 66: {
! 67: p->xml++;
! 68: if(p->xml >= p->xmlend)
! 69: return -1;
! 70: }
! 71: sep = *p->xml;
! 72: if(sep=='\'' || sep=='\"')
! 73: {
! 74: p->xml++;
! 75: if(p->xml >= p->xmlend)
! 76: return -1;
! 77: attvalue = p->xml;
! 78: attvaluelen = 0;
! 79: while(*p->xml != sep)
! 80: {
! 81: attvaluelen++; p->xml++;
! 82: if(p->xml >= p->xmlend)
! 83: return -1;
! 84: }
! 85: }
! 86: else
! 87: {
! 88: attvalue = p->xml;
! 89: attvaluelen = 0;
! 90: while( !IS_WHITE_SPACE(*p->xml)
! 91: && *p->xml != '>' && *p->xml != '/')
! 92: {
! 93: attvaluelen++; p->xml++;
! 94: if(p->xml >= p->xmlend)
! 95: return -1;
! 96: }
! 97: }
! 98: /*printf("%.*s='%.*s'\n",
! 99: attnamelen, attname, attvaluelen, attvalue);*/
! 100: if(p->attfunc)
! 101: p->attfunc(p->data, attname, attnamelen, attvalue, attvaluelen);
! 102: }
! 103: p->xml++;
! 104: }
! 105: return -1;
! 106: }
! 107:
! 108: /* parseelt parse the xml stream and
! 109: * call the callback functions when needed... */
! 110: static void parseelt(struct xmlparser * p)
! 111: {
! 112: int i;
! 113: const char * elementname;
! 114: while(p->xml < (p->xmlend - 1))
! 115: {
! 116: if((p->xml)[0]=='<' && (p->xml)[1]!='?')
! 117: {
! 118: i = 0; elementname = ++p->xml;
! 119: while( !IS_WHITE_SPACE(*p->xml)
! 120: && (*p->xml!='>') && (*p->xml!='/')
! 121: )
! 122: {
! 123: i++; p->xml++;
! 124: if (p->xml >= p->xmlend)
! 125: return;
! 126: /* to ignore namespace : */
! 127: if(*p->xml==':')
! 128: {
! 129: i = 0;
! 130: elementname = ++p->xml;
! 131: }
! 132: }
! 133: if(i>0)
! 134: {
! 135: if(p->starteltfunc)
! 136: p->starteltfunc(p->data, elementname, i);
! 137: if(parseatt(p))
! 138: return;
! 139: if(*p->xml!='/')
! 140: {
! 141: const char * data;
! 142: i = 0; data = ++p->xml;
! 143: if (p->xml >= p->xmlend)
! 144: return;
! 145: while( IS_WHITE_SPACE(*p->xml) )
! 146: {
! 147: i++; p->xml++;
! 148: if (p->xml >= p->xmlend)
! 149: return;
! 150: }
! 151: if(memcmp(p->xml, "<![CDATA[", 9) == 0)
! 152: {
! 153: /* CDATA handling */
! 154: p->xml += 9;
! 155: data = p->xml;
! 156: i = 0;
! 157: while(memcmp(p->xml, "]]>", 3) != 0)
! 158: {
! 159: i++; p->xml++;
! 160: if ((p->xml + 3) >= p->xmlend)
! 161: return;
! 162: }
! 163: if(i>0 && p->datafunc)
! 164: p->datafunc(p->data, data, i);
! 165: while(*p->xml!='<')
! 166: {
! 167: p->xml++;
! 168: if (p->xml >= p->xmlend)
! 169: return;
! 170: }
! 171: }
! 172: else
! 173: {
! 174: while(*p->xml!='<')
! 175: {
! 176: i++; p->xml++;
! 177: if ((p->xml + 1) >= p->xmlend)
! 178: return;
! 179: }
! 180: if(i>0 && p->datafunc && *(p->xml + 1) == '/')
! 181: p->datafunc(p->data, data, i);
! 182: }
! 183: }
! 184: }
! 185: else if(*p->xml == '/')
! 186: {
! 187: i = 0; elementname = ++p->xml;
! 188: if (p->xml >= p->xmlend)
! 189: return;
! 190: while((*p->xml != '>'))
! 191: {
! 192: i++; p->xml++;
! 193: if (p->xml >= p->xmlend)
! 194: return;
! 195: }
! 196: if(p->endeltfunc)
! 197: p->endeltfunc(p->data, elementname, i);
! 198: p->xml++;
! 199: }
! 200: }
! 201: else
! 202: {
! 203: p->xml++;
! 204: }
! 205: }
! 206: }
! 207:
! 208: /* the parser must be initialized before calling this function */
! 209: void parsexml(struct xmlparser * parser)
! 210: {
! 211: parser->xml = parser->xmlstart;
! 212: parser->xmlend = parser->xmlstart + parser->xmlsize;
! 213: parseelt(parser);
! 214: }
! 215:
! 216:
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