Annotation of embedaddon/miniupnpd/minixml.c, revision 1.1
1.1 ! misho 1: /* $Id: minixml.c,v 1.7 2009/10/10 19:15:35 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) 2005-2009, 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 "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. */
! 38: static int 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... */
! 109: static void 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 */
! 184: void parsexml(struct xmlparser * parser)
! 185: {
! 186: parser->xml = parser->xmlstart;
! 187: parser->xmlend = parser->xmlstart + parser->xmlsize;
! 188: parseelt(parser);
! 189: }
! 190:
! 191:
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