Mbed port of the Simple Plain Xml parser. See http://code.google.com/p/spxml/ for more details. This library uses less memory and is much better suited to streaming data than TinyXML (doesn\'t use as much C++ features, and especially works without streams). See http://mbed.org/users/hlipka/notebook/xml-parsing/ for usage examples.
Dependents: spxmltest_weather VFD_fontx2_weather weather_LCD_display News_LCD_display ... more
spxmlstag.cpp@0:3fa97f2c0505, 2010-11-24 (annotated)
- Committer:
- hlipka
- Date:
- Wed Nov 24 20:52:14 2010 +0000
- Revision:
- 0:3fa97f2c0505
initial revision
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hlipka | 0:3fa97f2c0505 | 1 | /* |
hlipka | 0:3fa97f2c0505 | 2 | * Copyright 2007 Stephen Liu |
hlipka | 0:3fa97f2c0505 | 3 | * LGPL, see http://code.google.com/p/spxml/ |
hlipka | 0:3fa97f2c0505 | 4 | * For license terms, see the file COPYING along with this library. |
hlipka | 0:3fa97f2c0505 | 5 | */ |
hlipka | 0:3fa97f2c0505 | 6 | |
hlipka | 0:3fa97f2c0505 | 7 | #include <stdlib.h> |
hlipka | 0:3fa97f2c0505 | 8 | #include <string.h> |
hlipka | 0:3fa97f2c0505 | 9 | #include <ctype.h> |
hlipka | 0:3fa97f2c0505 | 10 | #include <typeinfo> |
hlipka | 0:3fa97f2c0505 | 11 | |
hlipka | 0:3fa97f2c0505 | 12 | #include "mstring.h" |
hlipka | 0:3fa97f2c0505 | 13 | |
hlipka | 0:3fa97f2c0505 | 14 | #include "spxmlstag.hpp" |
hlipka | 0:3fa97f2c0505 | 15 | #include "spxmlutils.hpp" |
hlipka | 0:3fa97f2c0505 | 16 | #include "spxmlevent.hpp" |
hlipka | 0:3fa97f2c0505 | 17 | #include "spxmlcodec.hpp" |
hlipka | 0:3fa97f2c0505 | 18 | |
hlipka | 0:3fa97f2c0505 | 19 | SP_XmlSTagParser :: SP_XmlSTagParser( const char * encoding ) |
hlipka | 0:3fa97f2c0505 | 20 | { |
hlipka | 0:3fa97f2c0505 | 21 | mEvent = new SP_XmlStartTagEvent(); |
hlipka | 0:3fa97f2c0505 | 22 | mReader = new SP_XmlSTagNameReader(); |
hlipka | 0:3fa97f2c0505 | 23 | mStartTagName = new SP_XmlStringBuffer(); |
hlipka | 0:3fa97f2c0505 | 24 | mError = NULL; |
hlipka | 0:3fa97f2c0505 | 25 | |
hlipka | 0:3fa97f2c0505 | 26 | snprintf( mEncoding, sizeof( mEncoding ), "%s", encoding ); |
hlipka | 0:3fa97f2c0505 | 27 | } |
hlipka | 0:3fa97f2c0505 | 28 | |
hlipka | 0:3fa97f2c0505 | 29 | SP_XmlSTagParser :: ~SP_XmlSTagParser() |
hlipka | 0:3fa97f2c0505 | 30 | { |
hlipka | 0:3fa97f2c0505 | 31 | if( NULL != mEvent ) delete mEvent; |
hlipka | 0:3fa97f2c0505 | 32 | mEvent = NULL; |
hlipka | 0:3fa97f2c0505 | 33 | |
hlipka | 0:3fa97f2c0505 | 34 | if( NULL != mReader ) delete mReader; |
hlipka | 0:3fa97f2c0505 | 35 | mReader = NULL; |
hlipka | 0:3fa97f2c0505 | 36 | |
hlipka | 0:3fa97f2c0505 | 37 | if( NULL != mStartTagName ) delete mStartTagName; |
hlipka | 0:3fa97f2c0505 | 38 | mStartTagName = NULL; |
hlipka | 0:3fa97f2c0505 | 39 | |
hlipka | 0:3fa97f2c0505 | 40 | if( NULL != mError ) free( mError ); |
hlipka | 0:3fa97f2c0505 | 41 | mError = NULL; |
hlipka | 0:3fa97f2c0505 | 42 | } |
hlipka | 0:3fa97f2c0505 | 43 | |
hlipka | 0:3fa97f2c0505 | 44 | const char * SP_XmlSTagParser :: getEncoding() |
hlipka | 0:3fa97f2c0505 | 45 | { |
hlipka | 0:3fa97f2c0505 | 46 | return mEncoding; |
hlipka | 0:3fa97f2c0505 | 47 | } |
hlipka | 0:3fa97f2c0505 | 48 | |
hlipka | 0:3fa97f2c0505 | 49 | SP_XmlStartTagEvent * SP_XmlSTagParser :: takeEvent() |
hlipka | 0:3fa97f2c0505 | 50 | { |
hlipka | 0:3fa97f2c0505 | 51 | SP_XmlStartTagEvent * event = mEvent; |
hlipka | 0:3fa97f2c0505 | 52 | |
hlipka | 0:3fa97f2c0505 | 53 | mEvent = NULL; |
hlipka | 0:3fa97f2c0505 | 54 | |
hlipka | 0:3fa97f2c0505 | 55 | return event; |
hlipka | 0:3fa97f2c0505 | 56 | } |
hlipka | 0:3fa97f2c0505 | 57 | |
hlipka | 0:3fa97f2c0505 | 58 | const char * SP_XmlSTagParser :: getError() |
hlipka | 0:3fa97f2c0505 | 59 | { |
hlipka | 0:3fa97f2c0505 | 60 | return mError; |
hlipka | 0:3fa97f2c0505 | 61 | } |
hlipka | 0:3fa97f2c0505 | 62 | |
hlipka | 0:3fa97f2c0505 | 63 | void SP_XmlSTagParser :: changeReader( SP_XmlSTagReader * reader ) |
hlipka | 0:3fa97f2c0505 | 64 | { |
hlipka | 0:3fa97f2c0505 | 65 | delete mReader; |
hlipka | 0:3fa97f2c0505 | 66 | mReader = reader; |
hlipka | 0:3fa97f2c0505 | 67 | } |
hlipka | 0:3fa97f2c0505 | 68 | |
hlipka | 0:3fa97f2c0505 | 69 | void SP_XmlSTagParser :: setError( const char * error ) |
hlipka | 0:3fa97f2c0505 | 70 | { |
hlipka | 0:3fa97f2c0505 | 71 | if( NULL != error ) { |
hlipka | 0:3fa97f2c0505 | 72 | if( NULL != mError ) free( mError ); |
hlipka | 0:3fa97f2c0505 | 73 | mError = strdup( error ); |
hlipka | 0:3fa97f2c0505 | 74 | } |
hlipka | 0:3fa97f2c0505 | 75 | } |
hlipka | 0:3fa97f2c0505 | 76 | |
hlipka | 0:3fa97f2c0505 | 77 | void SP_XmlSTagParser :: append( const char * source, int len ) |
hlipka | 0:3fa97f2c0505 | 78 | { |
hlipka | 0:3fa97f2c0505 | 79 | for( int i = 0; i < len && NULL == mError; i++ ) { |
hlipka | 0:3fa97f2c0505 | 80 | mReader->read( this, source[ i ] ); |
hlipka | 0:3fa97f2c0505 | 81 | } |
hlipka | 0:3fa97f2c0505 | 82 | } |
hlipka | 0:3fa97f2c0505 | 83 | |
hlipka | 0:3fa97f2c0505 | 84 | //========================================================= |
hlipka | 0:3fa97f2c0505 | 85 | |
hlipka | 0:3fa97f2c0505 | 86 | SP_XmlSTagReader :: SP_XmlSTagReader() |
hlipka | 0:3fa97f2c0505 | 87 | { |
hlipka | 0:3fa97f2c0505 | 88 | mBuffer = new SP_XmlStringBuffer(); |
hlipka | 0:3fa97f2c0505 | 89 | } |
hlipka | 0:3fa97f2c0505 | 90 | |
hlipka | 0:3fa97f2c0505 | 91 | SP_XmlSTagReader :: ~SP_XmlSTagReader() |
hlipka | 0:3fa97f2c0505 | 92 | { |
hlipka | 0:3fa97f2c0505 | 93 | delete mBuffer; |
hlipka | 0:3fa97f2c0505 | 94 | mBuffer = NULL; |
hlipka | 0:3fa97f2c0505 | 95 | } |
hlipka | 0:3fa97f2c0505 | 96 | |
hlipka | 0:3fa97f2c0505 | 97 | void SP_XmlSTagReader :: changeReader( SP_XmlSTagParser * parser, |
hlipka | 0:3fa97f2c0505 | 98 | SP_XmlSTagReader * reader ) |
hlipka | 0:3fa97f2c0505 | 99 | { |
hlipka | 0:3fa97f2c0505 | 100 | //printf( "\nchange: %s\n", typeid( *reader ).name() ); |
hlipka | 0:3fa97f2c0505 | 101 | parser->changeReader( reader ); |
hlipka | 0:3fa97f2c0505 | 102 | } |
hlipka | 0:3fa97f2c0505 | 103 | |
hlipka | 0:3fa97f2c0505 | 104 | void SP_XmlSTagReader :: setError( SP_XmlSTagParser * parser, const char * error ) |
hlipka | 0:3fa97f2c0505 | 105 | { |
hlipka | 0:3fa97f2c0505 | 106 | parser->setError( error ); |
hlipka | 0:3fa97f2c0505 | 107 | } |
hlipka | 0:3fa97f2c0505 | 108 | |
hlipka | 0:3fa97f2c0505 | 109 | void SP_XmlSTagReader :: setName( SP_XmlSTagParser * parser, const char * name ) |
hlipka | 0:3fa97f2c0505 | 110 | { |
hlipka | 0:3fa97f2c0505 | 111 | parser->mEvent->setName( name ); |
hlipka | 0:3fa97f2c0505 | 112 | } |
hlipka | 0:3fa97f2c0505 | 113 | |
hlipka | 0:3fa97f2c0505 | 114 | void SP_XmlSTagReader :: addAttrName( SP_XmlSTagParser * parser, const char * name ) |
hlipka | 0:3fa97f2c0505 | 115 | { |
hlipka | 0:3fa97f2c0505 | 116 | parser->mStartTagName->append( name ); |
hlipka | 0:3fa97f2c0505 | 117 | } |
hlipka | 0:3fa97f2c0505 | 118 | |
hlipka | 0:3fa97f2c0505 | 119 | void SP_XmlSTagReader :: addAttrValue( SP_XmlSTagParser * parser, const char * value ) |
hlipka | 0:3fa97f2c0505 | 120 | { |
hlipka | 0:3fa97f2c0505 | 121 | SP_XmlStringBuffer decodeValue; |
hlipka | 0:3fa97f2c0505 | 122 | SP_XmlStringCodec::decode( parser->getEncoding(), value, &decodeValue ); |
hlipka | 0:3fa97f2c0505 | 123 | |
hlipka | 0:3fa97f2c0505 | 124 | parser->mEvent->addAttr( parser->mStartTagName->getBuffer(), decodeValue.getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 125 | parser->mStartTagName->clean(); |
hlipka | 0:3fa97f2c0505 | 126 | } |
hlipka | 0:3fa97f2c0505 | 127 | |
hlipka | 0:3fa97f2c0505 | 128 | //========================================================= |
hlipka | 0:3fa97f2c0505 | 129 | |
hlipka | 0:3fa97f2c0505 | 130 | SP_XmlSTagNameReader :: SP_XmlSTagNameReader() |
hlipka | 0:3fa97f2c0505 | 131 | { |
hlipka | 0:3fa97f2c0505 | 132 | } |
hlipka | 0:3fa97f2c0505 | 133 | |
hlipka | 0:3fa97f2c0505 | 134 | SP_XmlSTagNameReader :: ~SP_XmlSTagNameReader() |
hlipka | 0:3fa97f2c0505 | 135 | { |
hlipka | 0:3fa97f2c0505 | 136 | } |
hlipka | 0:3fa97f2c0505 | 137 | |
hlipka | 0:3fa97f2c0505 | 138 | void SP_XmlSTagNameReader :: read( SP_XmlSTagParser * parser, char c ) |
hlipka | 0:3fa97f2c0505 | 139 | { |
hlipka | 0:3fa97f2c0505 | 140 | if( isspace( c ) ) { |
hlipka | 0:3fa97f2c0505 | 141 | if( 0 == mBuffer->getSize() ) { |
hlipka | 0:3fa97f2c0505 | 142 | //leading space, skip |
hlipka | 0:3fa97f2c0505 | 143 | } else { |
hlipka | 0:3fa97f2c0505 | 144 | setName( parser, mBuffer->getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 145 | changeReader( parser, new SP_XmlSTagAttrNameReader() ); |
hlipka | 0:3fa97f2c0505 | 146 | } |
hlipka | 0:3fa97f2c0505 | 147 | } else { |
hlipka | 0:3fa97f2c0505 | 148 | mBuffer->append( c ); |
hlipka | 0:3fa97f2c0505 | 149 | } |
hlipka | 0:3fa97f2c0505 | 150 | } |
hlipka | 0:3fa97f2c0505 | 151 | |
hlipka | 0:3fa97f2c0505 | 152 | //========================================================= |
hlipka | 0:3fa97f2c0505 | 153 | |
hlipka | 0:3fa97f2c0505 | 154 | SP_XmlSTagAttrNameReader :: SP_XmlSTagAttrNameReader() |
hlipka | 0:3fa97f2c0505 | 155 | { |
hlipka | 0:3fa97f2c0505 | 156 | mWait4Quot = 0; |
hlipka | 0:3fa97f2c0505 | 157 | } |
hlipka | 0:3fa97f2c0505 | 158 | |
hlipka | 0:3fa97f2c0505 | 159 | SP_XmlSTagAttrNameReader :: ~SP_XmlSTagAttrNameReader() |
hlipka | 0:3fa97f2c0505 | 160 | { |
hlipka | 0:3fa97f2c0505 | 161 | } |
hlipka | 0:3fa97f2c0505 | 162 | |
hlipka | 0:3fa97f2c0505 | 163 | void SP_XmlSTagAttrNameReader :: read( SP_XmlSTagParser * parser, char c ) |
hlipka | 0:3fa97f2c0505 | 164 | { |
hlipka | 0:3fa97f2c0505 | 165 | if( 1 == mWait4Quot ) { |
hlipka | 0:3fa97f2c0505 | 166 | if( '"' == c ) { |
hlipka | 0:3fa97f2c0505 | 167 | addAttrName( parser, mBuffer->getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 168 | changeReader( parser, new SP_XmlSTagEqualMarkReader() ); |
hlipka | 0:3fa97f2c0505 | 169 | } else { |
hlipka | 0:3fa97f2c0505 | 170 | mBuffer->append( c ); |
hlipka | 0:3fa97f2c0505 | 171 | } |
hlipka | 0:3fa97f2c0505 | 172 | } else { |
hlipka | 0:3fa97f2c0505 | 173 | if( isspace( c ) ) { |
hlipka | 0:3fa97f2c0505 | 174 | if( 0 == mBuffer->getSize() ) { |
hlipka | 0:3fa97f2c0505 | 175 | //leading space, skip |
hlipka | 0:3fa97f2c0505 | 176 | } else { |
hlipka | 0:3fa97f2c0505 | 177 | addAttrName( parser, mBuffer->getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 178 | changeReader( parser, new SP_XmlSTagEqualMarkReader() ); |
hlipka | 0:3fa97f2c0505 | 179 | } |
hlipka | 0:3fa97f2c0505 | 180 | } else { |
hlipka | 0:3fa97f2c0505 | 181 | if( '"' == c && 0 == mBuffer->getSize() ) { |
hlipka | 0:3fa97f2c0505 | 182 | mWait4Quot = 1; |
hlipka | 0:3fa97f2c0505 | 183 | } else if( '=' == c ) { |
hlipka | 0:3fa97f2c0505 | 184 | addAttrName( parser, mBuffer->getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 185 | SP_XmlSTagReader * reader = new SP_XmlSTagEqualMarkReader(); |
hlipka | 0:3fa97f2c0505 | 186 | changeReader( parser, reader ); |
hlipka | 0:3fa97f2c0505 | 187 | reader->read( parser, c ); |
hlipka | 0:3fa97f2c0505 | 188 | } else { |
hlipka | 0:3fa97f2c0505 | 189 | mBuffer->append( c ); |
hlipka | 0:3fa97f2c0505 | 190 | } |
hlipka | 0:3fa97f2c0505 | 191 | } |
hlipka | 0:3fa97f2c0505 | 192 | } |
hlipka | 0:3fa97f2c0505 | 193 | } |
hlipka | 0:3fa97f2c0505 | 194 | |
hlipka | 0:3fa97f2c0505 | 195 | //========================================================= |
hlipka | 0:3fa97f2c0505 | 196 | |
hlipka | 0:3fa97f2c0505 | 197 | SP_XmlSTagEqualMarkReader :: SP_XmlSTagEqualMarkReader() |
hlipka | 0:3fa97f2c0505 | 198 | { |
hlipka | 0:3fa97f2c0505 | 199 | } |
hlipka | 0:3fa97f2c0505 | 200 | |
hlipka | 0:3fa97f2c0505 | 201 | SP_XmlSTagEqualMarkReader :: ~SP_XmlSTagEqualMarkReader() |
hlipka | 0:3fa97f2c0505 | 202 | { |
hlipka | 0:3fa97f2c0505 | 203 | } |
hlipka | 0:3fa97f2c0505 | 204 | |
hlipka | 0:3fa97f2c0505 | 205 | void SP_XmlSTagEqualMarkReader :: read( SP_XmlSTagParser * parser, char c ) |
hlipka | 0:3fa97f2c0505 | 206 | { |
hlipka | 0:3fa97f2c0505 | 207 | if( isspace( c ) ) { |
hlipka | 0:3fa97f2c0505 | 208 | //skip |
hlipka | 0:3fa97f2c0505 | 209 | } else if( '=' == c ) { |
hlipka | 0:3fa97f2c0505 | 210 | changeReader( parser, new SP_XmlSTagAttrValueReader() ); |
hlipka | 0:3fa97f2c0505 | 211 | } else { |
hlipka | 0:3fa97f2c0505 | 212 | addAttrValue( parser, "" ); |
hlipka | 0:3fa97f2c0505 | 213 | SP_XmlSTagReader * reader = new SP_XmlSTagAttrNameReader(); |
hlipka | 0:3fa97f2c0505 | 214 | changeReader( parser, reader ); |
hlipka | 0:3fa97f2c0505 | 215 | reader->read( parser, c ); |
hlipka | 0:3fa97f2c0505 | 216 | |
hlipka | 0:3fa97f2c0505 | 217 | //setError( parser, "miss '=' between name & value" ); |
hlipka | 0:3fa97f2c0505 | 218 | } |
hlipka | 0:3fa97f2c0505 | 219 | } |
hlipka | 0:3fa97f2c0505 | 220 | |
hlipka | 0:3fa97f2c0505 | 221 | //========================================================= |
hlipka | 0:3fa97f2c0505 | 222 | |
hlipka | 0:3fa97f2c0505 | 223 | SP_XmlSTagAttrValueReader :: SP_XmlSTagAttrValueReader() |
hlipka | 0:3fa97f2c0505 | 224 | { |
hlipka | 0:3fa97f2c0505 | 225 | mHasReadQuot = 0; |
hlipka | 0:3fa97f2c0505 | 226 | } |
hlipka | 0:3fa97f2c0505 | 227 | |
hlipka | 0:3fa97f2c0505 | 228 | SP_XmlSTagAttrValueReader :: ~SP_XmlSTagAttrValueReader() |
hlipka | 0:3fa97f2c0505 | 229 | { |
hlipka | 0:3fa97f2c0505 | 230 | } |
hlipka | 0:3fa97f2c0505 | 231 | |
hlipka | 0:3fa97f2c0505 | 232 | void SP_XmlSTagAttrValueReader :: read( SP_XmlSTagParser * parser, char c ) |
hlipka | 0:3fa97f2c0505 | 233 | { |
hlipka | 0:3fa97f2c0505 | 234 | if( 0 == mHasReadQuot ) { |
hlipka | 0:3fa97f2c0505 | 235 | if( isspace( c ) ) { |
hlipka | 0:3fa97f2c0505 | 236 | //skip |
hlipka | 0:3fa97f2c0505 | 237 | } else if( '"' == c ) { |
hlipka | 0:3fa97f2c0505 | 238 | mHasReadQuot = 1; |
hlipka | 0:3fa97f2c0505 | 239 | } else if( '\'' == c ) { |
hlipka | 0:3fa97f2c0505 | 240 | mHasReadQuot = 2; |
hlipka | 0:3fa97f2c0505 | 241 | } else { |
hlipka | 0:3fa97f2c0505 | 242 | setError( parser, "unknown attribute value start" ); |
hlipka | 0:3fa97f2c0505 | 243 | } |
hlipka | 0:3fa97f2c0505 | 244 | } else { |
hlipka | 0:3fa97f2c0505 | 245 | if( ( 1 == mHasReadQuot && '"' == c ) |
hlipka | 0:3fa97f2c0505 | 246 | || ( 2 == mHasReadQuot && '\'' == c ) ) { |
hlipka | 0:3fa97f2c0505 | 247 | addAttrValue( parser, mBuffer->getBuffer() ); |
hlipka | 0:3fa97f2c0505 | 248 | changeReader( parser, new SP_XmlSTagAttrNameReader() ); |
hlipka | 0:3fa97f2c0505 | 249 | } else { |
hlipka | 0:3fa97f2c0505 | 250 | mBuffer->append( c ); |
hlipka | 0:3fa97f2c0505 | 251 | } |
hlipka | 0:3fa97f2c0505 | 252 | } |
hlipka | 0:3fa97f2c0505 | 253 | } |
hlipka | 0:3fa97f2c0505 | 254 |