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| 1 | /*
|
|---|---|
| 2 | www.sourceforge.net/projects/tinyxml |
| 3 | Original code (2.0 and earlier )copyright (c) 2000-2002 Lee Thomason (www.grinninglizard.com) |
| 4 | |
| 5 | This software is provided 'as-is', without any express or implied |
| 6 | warranty. In no event will the authors be held liable for any |
| 7 | damages arising from the use of this software. |
| 8 | |
| 9 | Permission is granted to anyone to use this software for any |
| 10 | purpose, including commercial applications, and to alter it and |
| 11 | redistribute it freely, subject to the following restrictions: |
| 12 | |
| 13 | 1. The origin of this software must not be misrepresented; you must |
| 14 | not claim that you wrote the original software. If you use this |
| 15 | software in a product, an acknowledgment in the product documentation |
| 16 | would be appreciated but is not required. |
| 17 | |
| 18 | 2. Altered source versions must be plainly marked as such, and |
| 19 | must not be misrepresented as being the original software. |
| 20 | |
| 21 | 3. This notice may not be removed or altered from any source |
| 22 | distribution. |
| 23 | */ |
| 24 | |
| 25 | #include <ctype.h> |
| 26 | #include <stddef.h> |
| 27 | |
| 28 | #include "tinyxml.h" |
| 29 | |
| 30 | //#define DEBUG_PARSER
|
| 31 | #if defined( DEBUG_PARSER )
|
| 32 | # if defined( DEBUG ) && defined( _MSC_VER )
|
| 33 | # include <windows.h> |
| 34 | # define TIXML_LOG OutputDebugString
|
| 35 | # else
|
| 36 | # define TIXML_LOG printf
|
| 37 | # endif
|
| 38 | #endif
|
| 39 | |
| 40 | // Note tha "PutString" hardcodes the same list. This
|
| 41 | // is less flexible than it appears. Changing the entries
|
| 42 | // or order will break putstring.
|
| 43 | TiXmlBase::Entity TiXmlBase::entity[ NUM_ENTITY ] = |
| 44 | {
|
| 45 | { "&", 5, '&' },
|
| 46 | { "<", 4, '<' },
|
| 47 | { ">", 4, '>' },
|
| 48 | { """, 6, '\"' },
|
| 49 | { "'", 6, '\'' }
|
| 50 | }; |
| 51 | |
| 52 | // Bunch of unicode info at:
|
| 53 | // http://www.unicode.org/faq/utf_bom.html
|
| 54 | // Including the basic of this table, which determines the #bytes in the
|
| 55 | // sequence from the lead byte. 1 placed for invalid sequences --
|
| 56 | // although the result will be junk, pass it through as much as possible.
|
| 57 | // Beware of the non-characters in UTF-8:
|
| 58 | // ef bb bf (Microsoft "lead bytes")
|
| 59 | // ef bf be
|
| 60 | // ef bf bf
|
| 61 | |
| 62 | const unsigned char TIXML_UTF_LEAD_0 = 0xefU; |
| 63 | const unsigned char TIXML_UTF_LEAD_1 = 0xbbU; |
| 64 | const unsigned char TIXML_UTF_LEAD_2 = 0xbfU; |
| 65 | |
| 66 | const int TiXmlBase::utf8ByteTable[256] = |
| 67 | {
|
| 68 | // 0 1 2 3 4 5 6 7 8 9 a b c d e f
|
| 69 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x00 |
| 70 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x10 |
| 71 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x20 |
| 72 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x30 |
| 73 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x40 |
| 74 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x50 |
| 75 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x60 |
| 76 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x70 End of ASCII range |
| 77 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x80 0x80 to 0xc1 invalid |
| 78 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x90 |
| 79 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0xa0 |
| 80 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0xb0 |
| 81 | 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xc0 0xc2 to 0xdf 2 byte |
| 82 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xd0 |
| 83 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // 0xe0 0xe0 to 0xef 3 byte |
| 84 | 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // 0xf0 0xf0 to 0xf4 4 byte, 0xf5 and higher invalid |
| 85 | }; |
| 86 | |
| 87 | |
| 88 | void TiXmlBase::ConvertUTF32ToUTF8( unsigned long input, char* output, int* length ) |
| 89 | {
|
| 90 | const unsigned long BYTE_MASK = 0xBF; |
| 91 | const unsigned long BYTE_MARK = 0x80; |
| 92 | const unsigned long FIRST_BYTE_MARK[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; |
| 93 | |
| 94 | if (input < 0x80) |
| 95 | *length = 1;
|
| 96 | else if ( input < 0x800 ) |
| 97 | *length = 2;
|
| 98 | else if ( input < 0x10000 ) |
| 99 | *length = 3;
|
| 100 | else if ( input < 0x200000 ) |
| 101 | *length = 4;
|
| 102 | else
|
| 103 | { *length = 0; return; } // This code won't covert this correctly anyway.
|
| 104 | |
| 105 | output += *length; |
| 106 | |
| 107 | // Scary scary fall throughs.
|
| 108 | switch (*length)
|
| 109 | {
|
| 110 | case 4: |
| 111 | --output; |
| 112 | *output = (char)((input | BYTE_MARK) & BYTE_MASK);
|
| 113 | input >>= 6;
|
| 114 | case 3: |
| 115 | --output; |
| 116 | *output = (char)((input | BYTE_MARK) & BYTE_MASK);
|
| 117 | input >>= 6;
|
| 118 | case 2: |
| 119 | --output; |
| 120 | *output = (char)((input | BYTE_MARK) & BYTE_MASK);
|
| 121 | input >>= 6;
|
| 122 | case 1: |
| 123 | --output; |
| 124 | *output = (char)(input | FIRST_BYTE_MARK[*length]);
|
| 125 | } |
| 126 | } |
| 127 | |
| 128 | |
| 129 | /*static*/ int TiXmlBase::IsAlpha( unsigned char anyByte, TiXmlEncoding /*encoding*/ ) |
| 130 | {
|
| 131 | // This will only work for low-ascii, everything else is assumed to be a valid
|
| 132 | // letter. I'm not sure this is the best approach, but it is quite tricky trying
|
| 133 | // to figure out alhabetical vs. not across encoding. So take a very
|
| 134 | // conservative approach.
|
| 135 | |
| 136 | // if ( encoding == TIXML_ENCODING_UTF8 )
|
| 137 | // {
|
| 138 | if ( anyByte < 127 ) |
| 139 | return isalpha( anyByte );
|
| 140 | else
|
| 141 | return 1; // What else to do? The unicode set is huge...get the english ones right. |
| 142 | // }
|
| 143 | // else
|
| 144 | // {
|
| 145 | // return isalpha( anyByte );
|
| 146 | // }
|
| 147 | } |
| 148 | |
| 149 | |
| 150 | /*static*/ int TiXmlBase::IsAlphaNum( unsigned char anyByte, TiXmlEncoding /*encoding*/ ) |
| 151 | {
|
| 152 | // This will only work for low-ascii, everything else is assumed to be a valid
|
| 153 | // letter. I'm not sure this is the best approach, but it is quite tricky trying
|
| 154 | // to figure out alhabetical vs. not across encoding. So take a very
|
| 155 | // conservative approach.
|
| 156 | |
| 157 | // if ( encoding == TIXML_ENCODING_UTF8 )
|
| 158 | // {
|
| 159 | if ( anyByte < 127 ) |
| 160 | return isalnum( anyByte );
|
| 161 | else
|
| 162 | return 1; // What else to do? The unicode set is huge...get the english ones right. |
| 163 | // }
|
| 164 | // else
|
| 165 | // {
|
| 166 | // return isalnum( anyByte );
|
| 167 | // }
|
| 168 | } |
| 169 | |
| 170 | |
| 171 | class TiXmlParsingData |
| 172 | {
|
| 173 | friend class TiXmlDocument; |
| 174 | public:
|
| 175 | void Stamp( const char* now, TiXmlEncoding encoding ); |
| 176 | |
| 177 | const TiXmlCursor& Cursor() { return cursor; } |
| 178 | |
| 179 | private:
|
| 180 | // Only used by the document!
|
| 181 | TiXmlParsingData( const char* start, int _tabsize, int row, int col ) |
| 182 | {
|
| 183 | assert( start ); |
| 184 | stamp = start; |
| 185 | tabsize = _tabsize; |
| 186 | cursor.row = row; |
| 187 | cursor.col = col; |
| 188 | } |
| 189 | |
| 190 | TiXmlCursor cursor; |
| 191 | const char* stamp; |
| 192 | int tabsize;
|
| 193 | }; |
| 194 | |
| 195 | |
| 196 | void TiXmlParsingData::Stamp( const char* now, TiXmlEncoding encoding ) |
| 197 | {
|
| 198 | assert( now ); |
| 199 | |
| 200 | // Do nothing if the tabsize is 0.
|
| 201 | if ( tabsize < 1 ) |
| 202 | {
|
| 203 | return;
|
| 204 | } |
| 205 | |
| 206 | // Get the current row, column.
|
| 207 | int row = cursor.row;
|
| 208 | int col = cursor.col;
|
| 209 | const char* p = stamp; |
| 210 | assert( p ); |
| 211 | |
| 212 | while ( p < now )
|
| 213 | {
|
| 214 | // Treat p as unsigned, so we have a happy compiler.
|
| 215 | const unsigned char* pU = (const unsigned char*)p; |
| 216 | |
| 217 | // Code contributed by Fletcher Dunn: (modified by lee)
|
| 218 | switch (*pU) {
|
| 219 | case 0: |
| 220 | // We *should* never get here, but in case we do, don't
|
| 221 | // advance past the terminating null character, ever
|
| 222 | return;
|
| 223 | |
| 224 | case '\r': |
| 225 | // bump down to the next line
|
| 226 | ++row; |
| 227 | col = 0;
|
| 228 | // Eat the character
|
| 229 | ++p; |
| 230 | |
| 231 | // Check for \r\n sequence, and treat this as a single character
|
| 232 | if (*p == '\n') { |
| 233 | ++p; |
| 234 | } |
| 235 | break;
|
| 236 | |
| 237 | case '\n': |
| 238 | // bump down to the next line
|
| 239 | ++row; |
| 240 | col = 0;
|
| 241 | |
| 242 | // Eat the character
|
| 243 | ++p; |
| 244 | |
| 245 | // Check for \n\r sequence, and treat this as a single
|
| 246 | // character. (Yes, this bizarre thing does occur still
|
| 247 | // on some arcane platforms...)
|
| 248 | if (*p == '\r') { |
| 249 | ++p; |
| 250 | } |
| 251 | break;
|
| 252 | |
| 253 | case '\t': |
| 254 | // Eat the character
|
| 255 | ++p; |
| 256 | |
| 257 | // Skip to next tab stop
|
| 258 | col = (col / tabsize + 1) * tabsize;
|
| 259 | break;
|
| 260 | |
| 261 | case TIXML_UTF_LEAD_0: |
| 262 | if ( encoding == TIXML_ENCODING_UTF8 )
|
| 263 | {
|
| 264 | if ( *(p+1) && *(p+2) ) |
| 265 | {
|
| 266 | // In these cases, don't advance the column. These are
|
| 267 | // 0-width spaces.
|
| 268 | if ( *(pU+1)==TIXML_UTF_LEAD_1 && *(pU+2)==TIXML_UTF_LEAD_2 ) |
| 269 | p += 3;
|
| 270 | else if ( *(pU+1)==0xbfU && *(pU+2)==0xbeU ) |
| 271 | p += 3;
|
| 272 | else if ( *(pU+1)==0xbfU && *(pU+2)==0xbfU ) |
| 273 | p += 3;
|
| 274 | else
|
| 275 | { p +=3; ++col; } // A normal character.
|
| 276 | } |
| 277 | } |
| 278 | else
|
| 279 | {
|
| 280 | ++p; |
| 281 | ++col; |
| 282 | } |
| 283 | break;
|
| 284 | |
| 285 | default:
|
| 286 | if ( encoding == TIXML_ENCODING_UTF8 )
|
| 287 | {
|
| 288 | // Eat the 1 to 4 byte utf8 character.
|
| 289 | int step = TiXmlBase::utf8ByteTable[*((const unsigned char*)p)]; |
| 290 | if ( step == 0 ) |
| 291 | step = 1; // Error case from bad encoding, but handle gracefully. |
| 292 | p += step; |
| 293 | |
| 294 | // Just advance one column, of course.
|
| 295 | ++col; |
| 296 | } |
| 297 | else
|
| 298 | {
|
| 299 | ++p; |
| 300 | ++col; |
| 301 | } |
| 302 | break;
|
| 303 | } |
| 304 | } |
| 305 | cursor.row = row; |
| 306 | cursor.col = col; |
| 307 | assert( cursor.row >= -1 );
|
| 308 | assert( cursor.col >= -1 );
|
| 309 | stamp = p; |
| 310 | assert( stamp ); |
| 311 | } |
| 312 | |
| 313 | |
| 314 | const char* TiXmlBase::SkipWhiteSpace( const char* p, TiXmlEncoding encoding ) |
| 315 | {
|
| 316 | if ( !p || !*p )
|
| 317 | {
|
| 318 | return 0; |
| 319 | } |
| 320 | if ( encoding == TIXML_ENCODING_UTF8 )
|
| 321 | {
|
| 322 | while ( *p )
|
| 323 | {
|
| 324 | const unsigned char* pU = (const unsigned char*)p; |
| 325 | |
| 326 | // Skip the stupid Microsoft UTF-8 Byte order marks
|
| 327 | if ( *(pU+0)==TIXML_UTF_LEAD_0 |
| 328 | && *(pU+1)==TIXML_UTF_LEAD_1
|
| 329 | && *(pU+2)==TIXML_UTF_LEAD_2 )
|
| 330 | {
|
| 331 | p += 3;
|
| 332 | continue;
|
| 333 | } |
| 334 | else if(*(pU+0)==TIXML_UTF_LEAD_0 |
| 335 | && *(pU+1)==0xbfU |
| 336 | && *(pU+2)==0xbeU ) |
| 337 | {
|
| 338 | p += 3;
|
| 339 | continue;
|
| 340 | } |
| 341 | else if(*(pU+0)==TIXML_UTF_LEAD_0 |
| 342 | && *(pU+1)==0xbfU |
| 343 | && *(pU+2)==0xbfU ) |
| 344 | {
|
| 345 | p += 3;
|
| 346 | continue;
|
| 347 | } |
| 348 | |
| 349 | if ( IsWhiteSpace( *p ) || *p == '\n' || *p =='\r' ) // Still using old rules for white space. |
| 350 | ++p; |
| 351 | else
|
| 352 | break;
|
| 353 | } |
| 354 | } |
| 355 | else
|
| 356 | {
|
| 357 | while ( *p && IsWhiteSpace( *p ) || *p == '\n' || *p =='\r' ) |
| 358 | ++p; |
| 359 | } |
| 360 | |
| 361 | return p;
|
| 362 | } |
| 363 | |
| 364 | #ifdef TIXML_USE_STL
|
| 365 | /*static*/ bool TiXmlBase::StreamWhiteSpace( std::istream * in, TIXML_STRING * tag ) |
| 366 | {
|
| 367 | for( ;; )
|
| 368 | {
|
| 369 | if ( !in->good() ) return false; |
| 370 | |
| 371 | int c = in->peek();
|
| 372 | // At this scope, we can't get to a document. So fail silently.
|
| 373 | if ( !IsWhiteSpace( c ) || c <= 0 ) |
| 374 | return true; |
| 375 | |
| 376 | *tag += (char) in->get();
|
| 377 | } |
| 378 | } |
| 379 | |
| 380 | /*static*/ bool TiXmlBase::StreamTo( std::istream * in, int character, TIXML_STRING * tag ) |
| 381 | {
|
| 382 | //assert( character > 0 && character < 128 ); // else it won't work in utf-8
|
| 383 | while ( in->good() )
|
| 384 | {
|
| 385 | int c = in->peek();
|
| 386 | if ( c == character )
|
| 387 | return true; |
| 388 | if ( c <= 0 ) // Silent failure: can't get document at this scope |
| 389 | return false; |
| 390 | |
| 391 | in->get(); |
| 392 | *tag += (char) c;
|
| 393 | } |
| 394 | return false; |
| 395 | } |
| 396 | #endif
|
| 397 | |
| 398 | // One of TinyXML's more performance demanding functions. Try to keep the memory overhead down. The
|
| 399 | // "assign" optimization removes over 10% of the execution time.
|
| 400 | //
|
| 401 | const char* TiXmlBase::ReadName( const char* p, TIXML_STRING * name, TiXmlEncoding encoding ) |
| 402 | {
|
| 403 | // Oddly, not supported on some comilers,
|
| 404 | //name->clear();
|
| 405 | // So use this:
|
| 406 | *name = "";
|
| 407 | assert( p ); |
| 408 | |
| 409 | // Names start with letters or underscores.
|
| 410 | // Of course, in unicode, tinyxml has no idea what a letter *is*. The
|
| 411 | // algorithm is generous.
|
| 412 | //
|
| 413 | // After that, they can be letters, underscores, numbers,
|
| 414 | // hyphens, or colons. (Colons are valid ony for namespaces,
|
| 415 | // but tinyxml can't tell namespaces from names.)
|
| 416 | if ( p && *p
|
| 417 | && ( IsAlpha( (unsigned char) *p, encoding ) || *p == '_' ) ) |
| 418 | {
|
| 419 | const char* start = p; |
| 420 | while( p && *p
|
| 421 | && ( IsAlphaNum( (unsigned char ) *p, encoding ) |
| 422 | || *p == '_'
|
| 423 | || *p == '-'
|
| 424 | || *p == '.'
|
| 425 | || *p == ':' ) )
|
| 426 | {
|
| 427 | //(*name) += *p; // expensive
|
| 428 | ++p; |
| 429 | } |
| 430 | if ( p-start > 0 ) { |
| 431 | name->assign( start, p-start ); |
| 432 | } |
| 433 | return p;
|
| 434 | } |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | const char* TiXmlBase::GetEntity( const char* p, char* value, int* length, TiXmlEncoding encoding ) |
| 439 | {
|
| 440 | // Presume an entity, and pull it out.
|
| 441 | TIXML_STRING ent; |
| 442 | int i;
|
| 443 | *length = 0;
|
| 444 | |
| 445 | if ( *(p+1) && *(p+1) == '#' && *(p+2) ) |
| 446 | {
|
| 447 | unsigned long ucs = 0; |
| 448 | ptrdiff_t delta = 0;
|
| 449 | unsigned mult = 1; |
| 450 | |
| 451 | if ( *(p+2) == 'x' ) |
| 452 | {
|
| 453 | // Hexadecimal.
|
| 454 | if ( !*(p+3) ) return 0; |
| 455 | |
| 456 | const char* q = p+3; |
| 457 | q = strchr( q, ';' );
|
| 458 | |
| 459 | if ( !q || !*q ) return 0; |
| 460 | |
| 461 | delta = q-p; |
| 462 | --q; |
| 463 | |
| 464 | while ( *q != 'x' ) |
| 465 | {
|
| 466 | if ( *q >= '0' && *q <= '9' ) |
| 467 | ucs += mult * (*q - '0');
|
| 468 | else if ( *q >= 'a' && *q <= 'f' ) |
| 469 | ucs += mult * (*q - 'a' + 10); |
| 470 | else if ( *q >= 'A' && *q <= 'F' ) |
| 471 | ucs += mult * (*q - 'A' + 10 ); |
| 472 | else
|
| 473 | return 0; |
| 474 | mult *= 16;
|
| 475 | --q; |
| 476 | } |
| 477 | } |
| 478 | else
|
| 479 | {
|
| 480 | // Decimal.
|
| 481 | if ( !*(p+2) ) return 0; |
| 482 | |
| 483 | const char* q = p+2; |
| 484 | q = strchr( q, ';' );
|
| 485 | |
| 486 | if ( !q || !*q ) return 0; |
| 487 | |
| 488 | delta = q-p; |
| 489 | --q; |
| 490 | |
| 491 | while ( *q != '#' ) |
| 492 | {
|
| 493 | if ( *q >= '0' && *q <= '9' ) |
| 494 | ucs += mult * (*q - '0');
|
| 495 | else
|
| 496 | return 0; |
| 497 | mult *= 10;
|
| 498 | --q; |
| 499 | } |
| 500 | } |
| 501 | if ( encoding == TIXML_ENCODING_UTF8 )
|
| 502 | {
|
| 503 | // convert the UCS to UTF-8
|
| 504 | ConvertUTF32ToUTF8( ucs, value, length ); |
| 505 | } |
| 506 | else
|
| 507 | {
|
| 508 | *value = (char)ucs;
|
| 509 | *length = 1;
|
| 510 | } |
| 511 | return p + delta + 1; |
| 512 | } |
| 513 | |
| 514 | // Now try to match it.
|
| 515 | for( i=0; i<NUM_ENTITY; ++i ) |
| 516 | {
|
| 517 | if ( strncmp( entity[i].str, p, entity[i].strLength ) == 0 ) |
| 518 | {
|
| 519 | assert( strlen( entity[i].str ) == entity[i].strLength ); |
| 520 | *value = entity[i].chr; |
| 521 | *length = 1;
|
| 522 | return ( p + entity[i].strLength );
|
| 523 | } |
| 524 | } |
| 525 | |
| 526 | // So it wasn't an entity, its unrecognized, or something like that.
|
| 527 | *value = *p; // Don't put back the last one, since we return it!
|
| 528 | //*length = 1; // Leave unrecognized entities - this doesn't really work.
|
| 529 | // Just writes strange XML.
|
| 530 | return p+1; |
| 531 | } |
| 532 | |
| 533 | |
| 534 | bool TiXmlBase::StringEqual( const char* p, |
| 535 | const char* tag, |
| 536 | bool ignoreCase,
|
| 537 | TiXmlEncoding encoding ) |
| 538 | {
|
| 539 | assert( p ); |
| 540 | assert( tag ); |
| 541 | if ( !p || !*p )
|
| 542 | {
|
| 543 | assert( 0 );
|
| 544 | return false; |
| 545 | } |
| 546 | |
| 547 | const char* q = p; |
| 548 | |
| 549 | if ( ignoreCase )
|
| 550 | {
|
| 551 | while ( *q && *tag && ToLower( *q, encoding ) == ToLower( *tag, encoding ) )
|
| 552 | {
|
| 553 | ++q; |
| 554 | ++tag; |
| 555 | } |
| 556 | |
| 557 | if ( *tag == 0 ) |
| 558 | return true; |
| 559 | } |
| 560 | else
|
| 561 | {
|
| 562 | while ( *q && *tag && *q == *tag )
|
| 563 | {
|
| 564 | ++q; |
| 565 | ++tag; |
| 566 | } |
| 567 | |
| 568 | if ( *tag == 0 ) // Have we found the end of the tag, and everything equal? |
| 569 | return true; |
| 570 | } |
| 571 | return false; |
| 572 | } |
| 573 | |
| 574 | const char* TiXmlBase::ReadText( const char* p, |
| 575 | TIXML_STRING * text, |
| 576 | bool trimWhiteSpace,
|
| 577 | const char* endTag, |
| 578 | bool caseInsensitive,
|
| 579 | TiXmlEncoding encoding ) |
| 580 | {
|
| 581 | *text = "";
|
| 582 | if ( !trimWhiteSpace // certain tags always keep whitespace |
| 583 | || !condenseWhiteSpace ) // if true, whitespace is always kept
|
| 584 | {
|
| 585 | // Keep all the white space.
|
| 586 | while ( p && *p
|
| 587 | && !StringEqual( p, endTag, caseInsensitive, encoding ) |
| 588 | ) |
| 589 | {
|
| 590 | int len;
|
| 591 | char cArr[4] = { 0, 0, 0, 0 }; |
| 592 | p = GetChar( p, cArr, &len, encoding ); |
| 593 | text->append( cArr, len ); |
| 594 | } |
| 595 | } |
| 596 | else
|
| 597 | {
|
| 598 | bool whitespace = false; |
| 599 | |
| 600 | // Remove leading white space:
|
| 601 | p = SkipWhiteSpace( p, encoding ); |
| 602 | while ( p && *p
|
| 603 | && !StringEqual( p, endTag, caseInsensitive, encoding ) ) |
| 604 | {
|
| 605 | if ( *p == '\r' || *p == '\n' ) |
| 606 | {
|
| 607 | whitespace = true;
|
| 608 | ++p; |
| 609 | } |
| 610 | else if ( IsWhiteSpace( *p ) ) |
| 611 | {
|
| 612 | whitespace = true;
|
| 613 | ++p; |
| 614 | } |
| 615 | else
|
| 616 | {
|
| 617 | // If we've found whitespace, add it before the
|
| 618 | // new character. Any whitespace just becomes a space.
|
| 619 | if ( whitespace )
|
| 620 | {
|
| 621 | (*text) += ' ';
|
| 622 | whitespace = false;
|
| 623 | } |
| 624 | int len;
|
| 625 | char cArr[4] = { 0, 0, 0, 0 }; |
| 626 | p = GetChar( p, cArr, &len, encoding ); |
| 627 | if ( len == 1 ) |
| 628 | (*text) += cArr[0]; // more efficient |
| 629 | else
|
| 630 | text->append( cArr, len ); |
| 631 | } |
| 632 | } |
| 633 | } |
| 634 | if ( p )
|
| 635 | p += strlen( endTag ); |
| 636 | return p;
|
| 637 | } |
| 638 | |
| 639 | #ifdef TIXML_USE_STL
|
| 640 | |
| 641 | void TiXmlDocument::StreamIn( std::istream * in, TIXML_STRING * tag )
|
| 642 | {
|
| 643 | // The basic issue with a document is that we don't know what we're
|
| 644 | // streaming. Read something presumed to be a tag (and hope), then
|
| 645 | // identify it, and call the appropriate stream method on the tag.
|
| 646 | //
|
| 647 | // This "pre-streaming" will never read the closing ">" so the
|
| 648 | // sub-tag can orient itself.
|
| 649 | |
| 650 | if ( !StreamTo( in, '<', tag ) ) |
| 651 | {
|
| 652 | SetError( TIXML_ERROR_PARSING_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 653 | return;
|
| 654 | } |
| 655 | |
| 656 | while ( in->good() )
|
| 657 | {
|
| 658 | int tagIndex = (int) tag->length(); |
| 659 | while ( in->good() && in->peek() != '>' ) |
| 660 | {
|
| 661 | int c = in->get();
|
| 662 | if ( c <= 0 ) |
| 663 | {
|
| 664 | SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 665 | break;
|
| 666 | } |
| 667 | (*tag) += (char) c;
|
| 668 | } |
| 669 | |
| 670 | if ( in->good() )
|
| 671 | {
|
| 672 | // We now have something we presume to be a node of
|
| 673 | // some sort. Identify it, and call the node to
|
| 674 | // continue streaming.
|
| 675 | TiXmlNode* node = Identify( tag->c_str() + tagIndex, TIXML_DEFAULT_ENCODING ); |
| 676 | |
| 677 | if ( node )
|
| 678 | {
|
| 679 | node->StreamIn( in, tag ); |
| 680 | bool isElement = node->ToElement() != 0; |
| 681 | delete node; |
| 682 | node = 0;
|
| 683 | |
| 684 | // If this is the root element, we're done. Parsing will be
|
| 685 | // done by the >> operator.
|
| 686 | if ( isElement )
|
| 687 | {
|
| 688 | return;
|
| 689 | } |
| 690 | } |
| 691 | else
|
| 692 | {
|
| 693 | SetError( TIXML_ERROR, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 694 | return;
|
| 695 | } |
| 696 | } |
| 697 | } |
| 698 | // We should have returned sooner.
|
| 699 | SetError( TIXML_ERROR, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 700 | } |
| 701 | |
| 702 | #endif
|
| 703 | |
| 704 | const char* TiXmlDocument::Parse( const char* p, TiXmlParsingData* prevData, TiXmlEncoding encoding ) |
| 705 | {
|
| 706 | ClearError(); |
| 707 | |
| 708 | // Parse away, at the document level. Since a document
|
| 709 | // contains nothing but other tags, most of what happens
|
| 710 | // here is skipping white space.
|
| 711 | if ( !p || !*p )
|
| 712 | {
|
| 713 | SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 714 | return 0; |
| 715 | } |
| 716 | |
| 717 | // Note that, for a document, this needs to come
|
| 718 | // before the while space skip, so that parsing
|
| 719 | // starts from the pointer we are given.
|
| 720 | location.Clear(); |
| 721 | if ( prevData )
|
| 722 | {
|
| 723 | location.row = prevData->cursor.row; |
| 724 | location.col = prevData->cursor.col; |
| 725 | } |
| 726 | else
|
| 727 | {
|
| 728 | location.row = 0;
|
| 729 | location.col = 0;
|
| 730 | } |
| 731 | TiXmlParsingData data( p, TabSize(), location.row, location.col ); |
| 732 | location = data.Cursor(); |
| 733 | |
| 734 | if ( encoding == TIXML_ENCODING_UNKNOWN )
|
| 735 | {
|
| 736 | // Check for the Microsoft UTF-8 lead bytes.
|
| 737 | const unsigned char* pU = (const unsigned char*)p; |
| 738 | if ( *(pU+0) && *(pU+0) == TIXML_UTF_LEAD_0 |
| 739 | && *(pU+1) && *(pU+1) == TIXML_UTF_LEAD_1 |
| 740 | && *(pU+2) && *(pU+2) == TIXML_UTF_LEAD_2 ) |
| 741 | {
|
| 742 | encoding = TIXML_ENCODING_UTF8; |
| 743 | useMicrosoftBOM = true;
|
| 744 | } |
| 745 | } |
| 746 | |
| 747 | p = SkipWhiteSpace( p, encoding ); |
| 748 | if ( !p )
|
| 749 | {
|
| 750 | SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | while ( p && *p )
|
| 755 | {
|
| 756 | TiXmlNode* node = Identify( p, encoding ); |
| 757 | if ( node )
|
| 758 | {
|
| 759 | p = node->Parse( p, &data, encoding ); |
| 760 | LinkEndChild( node ); |
| 761 | } |
| 762 | else
|
| 763 | {
|
| 764 | break;
|
| 765 | } |
| 766 | |
| 767 | // Did we get encoding info?
|
| 768 | if ( encoding == TIXML_ENCODING_UNKNOWN
|
| 769 | && node->ToDeclaration() ) |
| 770 | {
|
| 771 | TiXmlDeclaration* dec = node->ToDeclaration(); |
| 772 | const char* enc = dec->Encoding(); |
| 773 | assert( enc ); |
| 774 | |
| 775 | if ( *enc == 0 ) |
| 776 | encoding = TIXML_ENCODING_UTF8; |
| 777 | else if ( StringEqual( enc, "UTF-8", true, TIXML_ENCODING_UNKNOWN ) ) |
| 778 | encoding = TIXML_ENCODING_UTF8; |
| 779 | else if ( StringEqual( enc, "UTF8", true, TIXML_ENCODING_UNKNOWN ) ) |
| 780 | encoding = TIXML_ENCODING_UTF8; // incorrect, but be nice
|
| 781 | else
|
| 782 | encoding = TIXML_ENCODING_LEGACY; |
| 783 | } |
| 784 | |
| 785 | p = SkipWhiteSpace( p, encoding ); |
| 786 | } |
| 787 | |
| 788 | // Was this empty?
|
| 789 | if ( !firstChild ) {
|
| 790 | SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, encoding ); |
| 791 | return 0; |
| 792 | } |
| 793 | |
| 794 | // All is well.
|
| 795 | return p;
|
| 796 | } |
| 797 | |
| 798 | void TiXmlDocument::SetError( int err, const char* pError, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 799 | {
|
| 800 | // The first error in a chain is more accurate - don't set again!
|
| 801 | if ( error )
|
| 802 | return;
|
| 803 | |
| 804 | assert( err > 0 && err < TIXML_ERROR_STRING_COUNT );
|
| 805 | error = true;
|
| 806 | errorId = err; |
| 807 | errorDesc = errorString[ errorId ]; |
| 808 | |
| 809 | errorLocation.Clear(); |
| 810 | if ( pError && data )
|
| 811 | {
|
| 812 | data->Stamp( pError, encoding ); |
| 813 | errorLocation = data->Cursor(); |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | |
| 818 | TiXmlNode* TiXmlNode::Identify( const char* p, TiXmlEncoding encoding ) |
| 819 | {
|
| 820 | TiXmlNode* returnNode = 0;
|
| 821 | |
| 822 | p = SkipWhiteSpace( p, encoding ); |
| 823 | if( !p || !*p || *p != '<' ) |
| 824 | {
|
| 825 | return 0; |
| 826 | } |
| 827 | |
| 828 | TiXmlDocument* doc = GetDocument(); |
| 829 | p = SkipWhiteSpace( p, encoding ); |
| 830 | |
| 831 | if ( !p || !*p )
|
| 832 | {
|
| 833 | return 0; |
| 834 | } |
| 835 | |
| 836 | // What is this thing?
|
| 837 | // - Elements start with a letter or underscore, but xml is reserved.
|
| 838 | // - Comments: <!--
|
| 839 | // - Decleration: <?xml
|
| 840 | // - Everthing else is unknown to tinyxml.
|
| 841 | //
|
| 842 | |
| 843 | const char* xmlHeader = { "<?xml" }; |
| 844 | const char* commentHeader = { "<!--" }; |
| 845 | const char* dtdHeader = { "<!" }; |
| 846 | const char* cdataHeader = { "<![CDATA[" }; |
| 847 | |
| 848 | if ( StringEqual( p, xmlHeader, true, encoding ) ) |
| 849 | {
|
| 850 | #ifdef DEBUG_PARSER
|
| 851 | TIXML_LOG( "XML parsing Declaration\n" );
|
| 852 | #endif
|
| 853 | returnNode = new TiXmlDeclaration(); |
| 854 | } |
| 855 | else if ( StringEqual( p, commentHeader, false, encoding ) ) |
| 856 | {
|
| 857 | #ifdef DEBUG_PARSER
|
| 858 | TIXML_LOG( "XML parsing Comment\n" );
|
| 859 | #endif
|
| 860 | returnNode = new TiXmlComment(); |
| 861 | } |
| 862 | else if ( StringEqual( p, cdataHeader, false, encoding ) ) |
| 863 | {
|
| 864 | #ifdef DEBUG_PARSER
|
| 865 | TIXML_LOG( "XML parsing CDATA\n" );
|
| 866 | #endif
|
| 867 | TiXmlText* text = new TiXmlText( "" );
|
| 868 | text->SetCDATA( true );
|
| 869 | returnNode = text; |
| 870 | } |
| 871 | else if ( StringEqual( p, dtdHeader, false, encoding ) ) |
| 872 | {
|
| 873 | #ifdef DEBUG_PARSER
|
| 874 | TIXML_LOG( "XML parsing Unknown(1)\n" );
|
| 875 | #endif
|
| 876 | returnNode = new TiXmlUnknown(); |
| 877 | } |
| 878 | else if ( IsAlpha( *(p+1), encoding ) |
| 879 | || *(p+1) == '_' ) |
| 880 | {
|
| 881 | #ifdef DEBUG_PARSER
|
| 882 | TIXML_LOG( "XML parsing Element\n" );
|
| 883 | #endif
|
| 884 | returnNode = new TiXmlElement( "" );
|
| 885 | } |
| 886 | else
|
| 887 | {
|
| 888 | #ifdef DEBUG_PARSER
|
| 889 | TIXML_LOG( "XML parsing Unknown(2)\n" );
|
| 890 | #endif
|
| 891 | returnNode = new TiXmlUnknown(); |
| 892 | } |
| 893 | |
| 894 | if ( returnNode )
|
| 895 | {
|
| 896 | // Set the parent, so it can report errors
|
| 897 | returnNode->parent = this; |
| 898 | } |
| 899 | else
|
| 900 | {
|
| 901 | if ( doc )
|
| 902 | doc->SetError( TIXML_ERROR_OUT_OF_MEMORY, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 903 | } |
| 904 | return returnNode;
|
| 905 | } |
| 906 | |
| 907 | #ifdef TIXML_USE_STL
|
| 908 | |
| 909 | void TiXmlElement::StreamIn (std::istream * in, TIXML_STRING * tag)
|
| 910 | {
|
| 911 | // We're called with some amount of pre-parsing. That is, some of "this"
|
| 912 | // element is in "tag". Go ahead and stream to the closing ">"
|
| 913 | while( in->good() )
|
| 914 | {
|
| 915 | int c = in->get();
|
| 916 | if ( c <= 0 ) |
| 917 | {
|
| 918 | TiXmlDocument* document = GetDocument(); |
| 919 | if ( document )
|
| 920 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 921 | return;
|
| 922 | } |
| 923 | (*tag) += (char) c ;
|
| 924 | |
| 925 | if ( c == '>' ) |
| 926 | break;
|
| 927 | } |
| 928 | |
| 929 | if ( tag->length() < 3 ) return; |
| 930 | |
| 931 | // Okay...if we are a "/>" tag, then we're done. We've read a complete tag.
|
| 932 | // If not, identify and stream.
|
| 933 | |
| 934 | if ( tag->at( tag->length() - 1 ) == '>' |
| 935 | && tag->at( tag->length() - 2 ) == '/' ) |
| 936 | {
|
| 937 | // All good!
|
| 938 | return;
|
| 939 | } |
| 940 | else if ( tag->at( tag->length() - 1 ) == '>' ) |
| 941 | {
|
| 942 | // There is more. Could be:
|
| 943 | // text
|
| 944 | // cdata text (which looks like another node)
|
| 945 | // closing tag
|
| 946 | // another node.
|
| 947 | for ( ;; )
|
| 948 | {
|
| 949 | StreamWhiteSpace( in, tag ); |
| 950 | |
| 951 | // Do we have text?
|
| 952 | if ( in->good() && in->peek() != '<' ) |
| 953 | {
|
| 954 | // Yep, text.
|
| 955 | TiXmlText text( "" );
|
| 956 | text.StreamIn( in, tag ); |
| 957 | |
| 958 | // What follows text is a closing tag or another node.
|
| 959 | // Go around again and figure it out.
|
| 960 | continue;
|
| 961 | } |
| 962 | |
| 963 | // We now have either a closing tag...or another node.
|
| 964 | // We should be at a "<", regardless.
|
| 965 | if ( !in->good() ) return; |
| 966 | assert( in->peek() == '<' );
|
| 967 | int tagIndex = (int) tag->length(); |
| 968 | |
| 969 | bool closingTag = false; |
| 970 | bool firstCharFound = false; |
| 971 | |
| 972 | for( ;; )
|
| 973 | {
|
| 974 | if ( !in->good() )
|
| 975 | return;
|
| 976 | |
| 977 | int c = in->peek();
|
| 978 | if ( c <= 0 ) |
| 979 | {
|
| 980 | TiXmlDocument* document = GetDocument(); |
| 981 | if ( document )
|
| 982 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 983 | return;
|
| 984 | } |
| 985 | |
| 986 | if ( c == '>' ) |
| 987 | break;
|
| 988 | |
| 989 | *tag += (char) c;
|
| 990 | in->get(); |
| 991 | |
| 992 | // Early out if we find the CDATA id.
|
| 993 | if ( c == '[' && tag->size() >= 9 ) |
| 994 | {
|
| 995 | size_t len = tag->size(); |
| 996 | const char* start = tag->c_str() + len - 9; |
| 997 | if ( strcmp( start, "<![CDATA[" ) == 0 ) { |
| 998 | assert( !closingTag ); |
| 999 | break;
|
| 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | if ( !firstCharFound && c != '<' && !IsWhiteSpace( c ) ) |
| 1004 | {
|
| 1005 | firstCharFound = true;
|
| 1006 | if ( c == '/' ) |
| 1007 | closingTag = true;
|
| 1008 | } |
| 1009 | } |
| 1010 | // If it was a closing tag, then read in the closing '>' to clean up the input stream.
|
| 1011 | // If it was not, the streaming will be done by the tag.
|
| 1012 | if ( closingTag )
|
| 1013 | {
|
| 1014 | if ( !in->good() )
|
| 1015 | return;
|
| 1016 | |
| 1017 | int c = in->get();
|
| 1018 | if ( c <= 0 ) |
| 1019 | {
|
| 1020 | TiXmlDocument* document = GetDocument(); |
| 1021 | if ( document )
|
| 1022 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1023 | return;
|
| 1024 | } |
| 1025 | assert( c == '>' );
|
| 1026 | *tag += (char) c;
|
| 1027 | |
| 1028 | // We are done, once we've found our closing tag.
|
| 1029 | return;
|
| 1030 | } |
| 1031 | else
|
| 1032 | {
|
| 1033 | // If not a closing tag, id it, and stream.
|
| 1034 | const char* tagloc = tag->c_str() + tagIndex; |
| 1035 | TiXmlNode* node = Identify( tagloc, TIXML_DEFAULT_ENCODING ); |
| 1036 | if ( !node )
|
| 1037 | return;
|
| 1038 | node->StreamIn( in, tag ); |
| 1039 | delete node; |
| 1040 | node = 0;
|
| 1041 | |
| 1042 | // No return: go around from the beginning: text, closing tag, or node.
|
| 1043 | } |
| 1044 | } |
| 1045 | } |
| 1046 | } |
| 1047 | #endif
|
| 1048 | |
| 1049 | const char* TiXmlElement::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1050 | {
|
| 1051 | p = SkipWhiteSpace( p, encoding ); |
| 1052 | TiXmlDocument* document = GetDocument(); |
| 1053 | |
| 1054 | if ( !p || !*p )
|
| 1055 | {
|
| 1056 | if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, 0, 0, encoding ); |
| 1057 | return 0; |
| 1058 | } |
| 1059 | |
| 1060 | if ( data )
|
| 1061 | {
|
| 1062 | data->Stamp( p, encoding ); |
| 1063 | location = data->Cursor(); |
| 1064 | } |
| 1065 | |
| 1066 | if ( *p != '<' ) |
| 1067 | {
|
| 1068 | if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, p, data, encoding );
|
| 1069 | return 0; |
| 1070 | } |
| 1071 | |
| 1072 | p = SkipWhiteSpace( p+1, encoding );
|
| 1073 | |
| 1074 | // Read the name.
|
| 1075 | const char* pErr = p; |
| 1076 | |
| 1077 | p = ReadName( p, &value, encoding ); |
| 1078 | if ( !p || !*p )
|
| 1079 | {
|
| 1080 | if ( document ) document->SetError( TIXML_ERROR_FAILED_TO_READ_ELEMENT_NAME, pErr, data, encoding );
|
| 1081 | return 0; |
| 1082 | } |
| 1083 | |
| 1084 | TIXML_STRING endTag ("</");
|
| 1085 | endTag += value; |
| 1086 | endTag += ">";
|
| 1087 | |
| 1088 | // Check for and read attributes. Also look for an empty
|
| 1089 | // tag or an end tag.
|
| 1090 | while ( p && *p )
|
| 1091 | {
|
| 1092 | pErr = p; |
| 1093 | p = SkipWhiteSpace( p, encoding ); |
| 1094 | if ( !p || !*p )
|
| 1095 | {
|
| 1096 | if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, pErr, data, encoding );
|
| 1097 | return 0; |
| 1098 | } |
| 1099 | if ( *p == '/' ) |
| 1100 | {
|
| 1101 | ++p; |
| 1102 | // Empty tag.
|
| 1103 | if ( *p != '>' ) |
| 1104 | {
|
| 1105 | if ( document ) document->SetError( TIXML_ERROR_PARSING_EMPTY, p, data, encoding );
|
| 1106 | return 0; |
| 1107 | } |
| 1108 | return (p+1); |
| 1109 | } |
| 1110 | else if ( *p == '>' ) |
| 1111 | {
|
| 1112 | // Done with attributes (if there were any.)
|
| 1113 | // Read the value -- which can include other
|
| 1114 | // elements -- read the end tag, and return.
|
| 1115 | ++p; |
| 1116 | p = ReadValue( p, data, encoding ); // Note this is an Element method, and will set the error if one happens.
|
| 1117 | if ( !p || !*p ) {
|
| 1118 | // We were looking for the end tag, but found nothing.
|
| 1119 | // Fix for [ 1663758 ] Failure to report error on bad XML
|
| 1120 | if ( document ) document->SetError( TIXML_ERROR_READING_END_TAG, p, data, encoding );
|
| 1121 | return 0; |
| 1122 | } |
| 1123 | |
| 1124 | // We should find the end tag now
|
| 1125 | if ( StringEqual( p, endTag.c_str(), false, encoding ) ) |
| 1126 | {
|
| 1127 | p += endTag.length(); |
| 1128 | return p;
|
| 1129 | } |
| 1130 | else
|
| 1131 | {
|
| 1132 | if ( document ) document->SetError( TIXML_ERROR_READING_END_TAG, p, data, encoding );
|
| 1133 | return 0; |
| 1134 | } |
| 1135 | } |
| 1136 | else
|
| 1137 | {
|
| 1138 | // Try to read an attribute:
|
| 1139 | TiXmlAttribute* attrib = new TiXmlAttribute(); |
| 1140 | if ( !attrib )
|
| 1141 | {
|
| 1142 | if ( document ) document->SetError( TIXML_ERROR_OUT_OF_MEMORY, pErr, data, encoding );
|
| 1143 | return 0; |
| 1144 | } |
| 1145 | |
| 1146 | attrib->SetDocument( document ); |
| 1147 | pErr = p; |
| 1148 | p = attrib->Parse( p, data, encoding ); |
| 1149 | |
| 1150 | if ( !p || !*p )
|
| 1151 | {
|
| 1152 | if ( document ) document->SetError( TIXML_ERROR_PARSING_ELEMENT, pErr, data, encoding );
|
| 1153 | delete attrib; |
| 1154 | return 0; |
| 1155 | } |
| 1156 | |
| 1157 | // Handle the strange case of double attributes:
|
| 1158 | #ifdef TIXML_USE_STL
|
| 1159 | TiXmlAttribute* node = attributeSet.Find( attrib->NameTStr() ); |
| 1160 | #else
|
| 1161 | TiXmlAttribute* node = attributeSet.Find( attrib->Name() ); |
| 1162 | #endif
|
| 1163 | if ( node )
|
| 1164 | {
|
| 1165 | node->SetValue( attrib->Value() ); |
| 1166 | delete attrib; |
| 1167 | return 0; |
| 1168 | } |
| 1169 | |
| 1170 | attributeSet.Add( attrib ); |
| 1171 | } |
| 1172 | } |
| 1173 | return p;
|
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | const char* TiXmlElement::ReadValue( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1178 | {
|
| 1179 | TiXmlDocument* document = GetDocument(); |
| 1180 | |
| 1181 | // Read in text and elements in any order.
|
| 1182 | const char* pWithWhiteSpace = p; |
| 1183 | p = SkipWhiteSpace( p, encoding ); |
| 1184 | |
| 1185 | while ( p && *p )
|
| 1186 | {
|
| 1187 | if ( *p != '<' ) |
| 1188 | {
|
| 1189 | // Take what we have, make a text element.
|
| 1190 | TiXmlText* textNode = new TiXmlText( "" );
|
| 1191 | |
| 1192 | if ( !textNode )
|
| 1193 | {
|
| 1194 | if ( document ) document->SetError( TIXML_ERROR_OUT_OF_MEMORY, 0, 0, encoding ); |
| 1195 | return 0; |
| 1196 | } |
| 1197 | |
| 1198 | if ( TiXmlBase::IsWhiteSpaceCondensed() )
|
| 1199 | {
|
| 1200 | p = textNode->Parse( p, data, encoding ); |
| 1201 | } |
| 1202 | else
|
| 1203 | {
|
| 1204 | // Special case: we want to keep the white space
|
| 1205 | // so that leading spaces aren't removed.
|
| 1206 | p = textNode->Parse( pWithWhiteSpace, data, encoding ); |
| 1207 | } |
| 1208 | |
| 1209 | if ( !textNode->Blank() )
|
| 1210 | LinkEndChild( textNode ); |
| 1211 | else
|
| 1212 | delete textNode; |
| 1213 | } |
| 1214 | else
|
| 1215 | {
|
| 1216 | // We hit a '<'
|
| 1217 | // Have we hit a new element or an end tag? This could also be
|
| 1218 | // a TiXmlText in the "CDATA" style.
|
| 1219 | if ( StringEqual( p, "</", false, encoding ) ) |
| 1220 | {
|
| 1221 | return p;
|
| 1222 | } |
| 1223 | else
|
| 1224 | {
|
| 1225 | TiXmlNode* node = Identify( p, encoding ); |
| 1226 | if ( node )
|
| 1227 | {
|
| 1228 | p = node->Parse( p, data, encoding ); |
| 1229 | LinkEndChild( node ); |
| 1230 | } |
| 1231 | else
|
| 1232 | {
|
| 1233 | return 0; |
| 1234 | } |
| 1235 | } |
| 1236 | } |
| 1237 | pWithWhiteSpace = p; |
| 1238 | p = SkipWhiteSpace( p, encoding ); |
| 1239 | } |
| 1240 | |
| 1241 | if ( !p )
|
| 1242 | {
|
| 1243 | if ( document ) document->SetError( TIXML_ERROR_READING_ELEMENT_VALUE, 0, 0, encoding ); |
| 1244 | } |
| 1245 | return p;
|
| 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | #ifdef TIXML_USE_STL
|
| 1250 | void TiXmlUnknown::StreamIn( std::istream * in, TIXML_STRING * tag )
|
| 1251 | {
|
| 1252 | while ( in->good() )
|
| 1253 | {
|
| 1254 | int c = in->get();
|
| 1255 | if ( c <= 0 ) |
| 1256 | {
|
| 1257 | TiXmlDocument* document = GetDocument(); |
| 1258 | if ( document )
|
| 1259 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1260 | return;
|
| 1261 | } |
| 1262 | (*tag) += (char) c;
|
| 1263 | |
| 1264 | if ( c == '>' ) |
| 1265 | {
|
| 1266 | // All is well.
|
| 1267 | return;
|
| 1268 | } |
| 1269 | } |
| 1270 | } |
| 1271 | #endif
|
| 1272 | |
| 1273 | |
| 1274 | const char* TiXmlUnknown::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1275 | {
|
| 1276 | TiXmlDocument* document = GetDocument(); |
| 1277 | p = SkipWhiteSpace( p, encoding ); |
| 1278 | |
| 1279 | if ( data )
|
| 1280 | {
|
| 1281 | data->Stamp( p, encoding ); |
| 1282 | location = data->Cursor(); |
| 1283 | } |
| 1284 | if ( !p || !*p || *p != '<' ) |
| 1285 | {
|
| 1286 | if ( document ) document->SetError( TIXML_ERROR_PARSING_UNKNOWN, p, data, encoding );
|
| 1287 | return 0; |
| 1288 | } |
| 1289 | ++p; |
| 1290 | value = "";
|
| 1291 | |
| 1292 | while ( p && *p && *p != '>' ) |
| 1293 | {
|
| 1294 | value += *p; |
| 1295 | ++p; |
| 1296 | } |
| 1297 | |
| 1298 | if ( !p )
|
| 1299 | {
|
| 1300 | if ( document ) document->SetError( TIXML_ERROR_PARSING_UNKNOWN, 0, 0, encoding ); |
| 1301 | } |
| 1302 | if ( *p == '>' ) |
| 1303 | return p+1; |
| 1304 | return p;
|
| 1305 | } |
| 1306 | |
| 1307 | #ifdef TIXML_USE_STL
|
| 1308 | void TiXmlComment::StreamIn( std::istream * in, TIXML_STRING * tag )
|
| 1309 | {
|
| 1310 | while ( in->good() )
|
| 1311 | {
|
| 1312 | int c = in->get();
|
| 1313 | if ( c <= 0 ) |
| 1314 | {
|
| 1315 | TiXmlDocument* document = GetDocument(); |
| 1316 | if ( document )
|
| 1317 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1318 | return;
|
| 1319 | } |
| 1320 | |
| 1321 | (*tag) += (char) c;
|
| 1322 | |
| 1323 | if ( c == '>' |
| 1324 | && tag->at( tag->length() - 2 ) == '-' |
| 1325 | && tag->at( tag->length() - 3 ) == '-' ) |
| 1326 | {
|
| 1327 | // All is well.
|
| 1328 | return;
|
| 1329 | } |
| 1330 | } |
| 1331 | } |
| 1332 | #endif
|
| 1333 | |
| 1334 | |
| 1335 | const char* TiXmlComment::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1336 | {
|
| 1337 | TiXmlDocument* document = GetDocument(); |
| 1338 | value = "";
|
| 1339 | |
| 1340 | p = SkipWhiteSpace( p, encoding ); |
| 1341 | |
| 1342 | if ( data )
|
| 1343 | {
|
| 1344 | data->Stamp( p, encoding ); |
| 1345 | location = data->Cursor(); |
| 1346 | } |
| 1347 | const char* startTag = "<!--"; |
| 1348 | const char* endTag = "-->"; |
| 1349 | |
| 1350 | if ( !StringEqual( p, startTag, false, encoding ) ) |
| 1351 | {
|
| 1352 | document->SetError( TIXML_ERROR_PARSING_COMMENT, p, data, encoding ); |
| 1353 | return 0; |
| 1354 | } |
| 1355 | p += strlen( startTag ); |
| 1356 | |
| 1357 | // [ 1475201 ] TinyXML parses entities in comments
|
| 1358 | // Oops - ReadText doesn't work, because we don't want to parse the entities.
|
| 1359 | // p = ReadText( p, &value, false, endTag, false, encoding );
|
| 1360 | //
|
| 1361 | // from the XML spec:
|
| 1362 | /*
|
| 1363 | [Definition: Comments may appear anywhere in a document outside other markup; in addition, |
| 1364 | they may appear within the document type declaration at places allowed by the grammar. |
| 1365 | They are not part of the document's character data; an XML processor MAY, but need not, |
| 1366 | make it possible for an application to retrieve the text of comments. For compatibility, |
| 1367 | the string "--" (double-hyphen) MUST NOT occur within comments.] Parameter entity |
| 1368 | references MUST NOT be recognized within comments. |
| 1369 | |
| 1370 | An example of a comment: |
| 1371 | |
| 1372 | <!-- declarations for <head> & <body> --> |
| 1373 | */ |
| 1374 | |
| 1375 | value = "";
|
| 1376 | // Keep all the white space.
|
| 1377 | while ( p && *p && !StringEqual( p, endTag, false, encoding ) ) |
| 1378 | {
|
| 1379 | value.append( p, 1 );
|
| 1380 | ++p; |
| 1381 | } |
| 1382 | if ( p )
|
| 1383 | p += strlen( endTag ); |
| 1384 | |
| 1385 | return p;
|
| 1386 | } |
| 1387 | |
| 1388 | |
| 1389 | const char* TiXmlAttribute::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1390 | {
|
| 1391 | p = SkipWhiteSpace( p, encoding ); |
| 1392 | if ( !p || !*p ) return 0; |
| 1393 | |
| 1394 | // int tabsize = 4;
|
| 1395 | // if ( document )
|
| 1396 | // tabsize = document->TabSize();
|
| 1397 | |
| 1398 | if ( data )
|
| 1399 | {
|
| 1400 | data->Stamp( p, encoding ); |
| 1401 | location = data->Cursor(); |
| 1402 | } |
| 1403 | // Read the name, the '=' and the value.
|
| 1404 | const char* pErr = p; |
| 1405 | p = ReadName( p, &name, encoding ); |
| 1406 | if ( !p || !*p )
|
| 1407 | {
|
| 1408 | if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, pErr, data, encoding );
|
| 1409 | return 0; |
| 1410 | } |
| 1411 | p = SkipWhiteSpace( p, encoding ); |
| 1412 | if ( !p || !*p || *p != '=' ) |
| 1413 | {
|
| 1414 | if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding );
|
| 1415 | return 0; |
| 1416 | } |
| 1417 | |
| 1418 | ++p; // skip '='
|
| 1419 | p = SkipWhiteSpace( p, encoding ); |
| 1420 | if ( !p || !*p )
|
| 1421 | {
|
| 1422 | if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding );
|
| 1423 | return 0; |
| 1424 | } |
| 1425 | |
| 1426 | const char* end; |
| 1427 | const char SINGLE_QUOTE = '\''; |
| 1428 | const char DOUBLE_QUOTE = '\"'; |
| 1429 | |
| 1430 | if ( *p == SINGLE_QUOTE )
|
| 1431 | {
|
| 1432 | ++p; |
| 1433 | end = "\'"; // single quote in string |
| 1434 | p = ReadText( p, &value, false, end, false, encoding ); |
| 1435 | } |
| 1436 | else if ( *p == DOUBLE_QUOTE ) |
| 1437 | {
|
| 1438 | ++p; |
| 1439 | end = "\""; // double quote in string |
| 1440 | p = ReadText( p, &value, false, end, false, encoding ); |
| 1441 | } |
| 1442 | else
|
| 1443 | {
|
| 1444 | // All attribute values should be in single or double quotes.
|
| 1445 | // But this is such a common error that the parser will try
|
| 1446 | // its best, even without them.
|
| 1447 | value = "";
|
| 1448 | while ( p && *p // existence |
| 1449 | && !IsWhiteSpace( *p ) && *p != '\n' && *p != '\r' // whitespace |
| 1450 | && *p != '/' && *p != '>' ) // tag end |
| 1451 | {
|
| 1452 | if ( *p == SINGLE_QUOTE || *p == DOUBLE_QUOTE ) {
|
| 1453 | // [ 1451649 ] Attribute values with trailing quotes not handled correctly
|
| 1454 | // We did not have an opening quote but seem to have a
|
| 1455 | // closing one. Give up and throw an error.
|
| 1456 | if ( document ) document->SetError( TIXML_ERROR_READING_ATTRIBUTES, p, data, encoding );
|
| 1457 | return 0; |
| 1458 | } |
| 1459 | value += *p; |
| 1460 | ++p; |
| 1461 | } |
| 1462 | } |
| 1463 | return p;
|
| 1464 | } |
| 1465 | |
| 1466 | #ifdef TIXML_USE_STL
|
| 1467 | void TiXmlText::StreamIn( std::istream * in, TIXML_STRING * tag )
|
| 1468 | {
|
| 1469 | while ( in->good() )
|
| 1470 | {
|
| 1471 | int c = in->peek();
|
| 1472 | if ( !cdata && (c == '<' ) ) |
| 1473 | {
|
| 1474 | return;
|
| 1475 | } |
| 1476 | if ( c <= 0 ) |
| 1477 | {
|
| 1478 | TiXmlDocument* document = GetDocument(); |
| 1479 | if ( document )
|
| 1480 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1481 | return;
|
| 1482 | } |
| 1483 | |
| 1484 | (*tag) += (char) c;
|
| 1485 | in->get(); // "commits" the peek made above
|
| 1486 | |
| 1487 | if ( cdata && c == '>' && tag->size() >= 3 ) { |
| 1488 | size_t len = tag->size(); |
| 1489 | if ( (*tag)[len-2] == ']' && (*tag)[len-3] == ']' ) { |
| 1490 | // terminator of cdata.
|
| 1491 | return;
|
| 1492 | } |
| 1493 | } |
| 1494 | } |
| 1495 | } |
| 1496 | #endif
|
| 1497 | |
| 1498 | const char* TiXmlText::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding encoding ) |
| 1499 | {
|
| 1500 | value = "";
|
| 1501 | TiXmlDocument* document = GetDocument(); |
| 1502 | |
| 1503 | if ( data )
|
| 1504 | {
|
| 1505 | data->Stamp( p, encoding ); |
| 1506 | location = data->Cursor(); |
| 1507 | } |
| 1508 | |
| 1509 | const char* const startTag = "<![CDATA["; |
| 1510 | const char* const endTag = "]]>"; |
| 1511 | |
| 1512 | if ( cdata || StringEqual( p, startTag, false, encoding ) ) |
| 1513 | {
|
| 1514 | cdata = true;
|
| 1515 | |
| 1516 | if ( !StringEqual( p, startTag, false, encoding ) ) |
| 1517 | {
|
| 1518 | document->SetError( TIXML_ERROR_PARSING_CDATA, p, data, encoding ); |
| 1519 | return 0; |
| 1520 | } |
| 1521 | p += strlen( startTag ); |
| 1522 | |
| 1523 | // Keep all the white space, ignore the encoding, etc.
|
| 1524 | while ( p && *p
|
| 1525 | && !StringEqual( p, endTag, false, encoding )
|
| 1526 | ) |
| 1527 | {
|
| 1528 | value += *p; |
| 1529 | ++p; |
| 1530 | } |
| 1531 | |
| 1532 | TIXML_STRING dummy; |
| 1533 | p = ReadText( p, &dummy, false, endTag, false, encoding ); |
| 1534 | return p;
|
| 1535 | } |
| 1536 | else
|
| 1537 | {
|
| 1538 | bool ignoreWhite = true; |
| 1539 | |
| 1540 | const char* end = "<"; |
| 1541 | p = ReadText( p, &value, ignoreWhite, end, false, encoding );
|
| 1542 | if ( p )
|
| 1543 | return p-1; // don't truncate the '<' |
| 1544 | return 0; |
| 1545 | } |
| 1546 | } |
| 1547 | |
| 1548 | #ifdef TIXML_USE_STL
|
| 1549 | void TiXmlDeclaration::StreamIn( std::istream * in, TIXML_STRING * tag )
|
| 1550 | {
|
| 1551 | while ( in->good() )
|
| 1552 | {
|
| 1553 | int c = in->get();
|
| 1554 | if ( c <= 0 ) |
| 1555 | {
|
| 1556 | TiXmlDocument* document = GetDocument(); |
| 1557 | if ( document )
|
| 1558 | document->SetError( TIXML_ERROR_EMBEDDED_NULL, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1559 | return;
|
| 1560 | } |
| 1561 | (*tag) += (char) c;
|
| 1562 | |
| 1563 | if ( c == '>' ) |
| 1564 | {
|
| 1565 | // All is well.
|
| 1566 | return;
|
| 1567 | } |
| 1568 | } |
| 1569 | } |
| 1570 | #endif
|
| 1571 | |
| 1572 | const char* TiXmlDeclaration::Parse( const char* p, TiXmlParsingData* data, TiXmlEncoding _encoding ) |
| 1573 | {
|
| 1574 | p = SkipWhiteSpace( p, _encoding ); |
| 1575 | // Find the beginning, find the end, and look for
|
| 1576 | // the stuff in-between.
|
| 1577 | TiXmlDocument* document = GetDocument(); |
| 1578 | if ( !p || !*p || !StringEqual( p, "<?xml", true, _encoding ) ) |
| 1579 | {
|
| 1580 | if ( document ) document->SetError( TIXML_ERROR_PARSING_DECLARATION, 0, 0, _encoding ); |
| 1581 | return 0; |
| 1582 | } |
| 1583 | if ( data )
|
| 1584 | {
|
| 1585 | data->Stamp( p, _encoding ); |
| 1586 | location = data->Cursor(); |
| 1587 | } |
| 1588 | p += 5;
|
| 1589 | |
| 1590 | version = "";
|
| 1591 | encoding = "";
|
| 1592 | standalone = "";
|
| 1593 | |
| 1594 | while ( p && *p )
|
| 1595 | {
|
| 1596 | if ( *p == '>' ) |
| 1597 | {
|
| 1598 | ++p; |
| 1599 | return p;
|
| 1600 | } |
| 1601 | |
| 1602 | p = SkipWhiteSpace( p, _encoding ); |
| 1603 | if ( StringEqual( p, "version", true, _encoding ) ) |
| 1604 | {
|
| 1605 | TiXmlAttribute attrib; |
| 1606 | p = attrib.Parse( p, data, _encoding ); |
| 1607 | version = attrib.Value(); |
| 1608 | } |
| 1609 | else if ( StringEqual( p, "encoding", true, _encoding ) ) |
| 1610 | {
|
| 1611 | TiXmlAttribute attrib; |
| 1612 | p = attrib.Parse( p, data, _encoding ); |
| 1613 | encoding = attrib.Value(); |
| 1614 | } |
| 1615 | else if ( StringEqual( p, "standalone", true, _encoding ) ) |
| 1616 | {
|
| 1617 | TiXmlAttribute attrib; |
| 1618 | p = attrib.Parse( p, data, _encoding ); |
| 1619 | standalone = attrib.Value(); |
| 1620 | } |
| 1621 | else
|
| 1622 | {
|
| 1623 | // Read over whatever it is.
|
| 1624 | while( p && *p && *p != '>' && !IsWhiteSpace( *p ) ) |
| 1625 | ++p; |
| 1626 | } |
| 1627 | } |
| 1628 | return 0; |
| 1629 | } |
| 1630 | |
| 1631 | bool TiXmlText::Blank() const |
| 1632 | {
|
| 1633 | for ( unsigned i=0; i<value.length(); i++ ) |
| 1634 | if ( !IsWhiteSpace( value[i] ) )
|
| 1635 | return false; |
| 1636 | return true; |
| 1637 | } |
| 1638 | |
| 1639 | |
| 1640 | bool TiXmlDocument::ReadFromMemory( const char* pBuf, size_t sz, TiXmlEncoding encoding) |
| 1641 | {
|
| 1642 | // Delete the existing data:
|
| 1643 | Clear(); |
| 1644 | location.Clear(); |
| 1645 | |
| 1646 | // Get the file size, so we can pre-allocate the string. HUGE speed impact.
|
| 1647 | long length = (long) sz; |
| 1648 | |
| 1649 | // Strange case, but good to handle up front.
|
| 1650 | if ( length == 0 ) |
| 1651 | {
|
| 1652 | SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN ); |
| 1653 | return false; |
| 1654 | } |
| 1655 | |
| 1656 | // If we have a file, assume it is all one big XML file, and read it in.
|
| 1657 | // The document parser may decide the document ends sooner than the entire file, however.
|
| 1658 | TIXML_STRING data; |
| 1659 | data.reserve( length ); |
| 1660 | |
| 1661 | |
| 1662 | char* buf = new char[ length+1 ]; |
| 1663 | memset(buf,0,length+1); |
| 1664 | |
| 1665 | memcpy(buf, pBuf, length); |
| 1666 | |
| 1667 | const char* lastPos = buf; |
| 1668 | const char* p = buf; |
| 1669 | |
| 1670 | buf[length] = 0;
|
| 1671 | while( *p ) {
|
| 1672 | assert( p < (buf+length) ); |
| 1673 | if ( *p == 0xa ) { |
| 1674 | // Newline character. No special rules for this. Append all the characters
|
| 1675 | // since the last string, and include the newline.
|
| 1676 | data.append( lastPos, (p-lastPos+1) ); // append, include the newline |
| 1677 | ++p; // move past the newline
|
| 1678 | lastPos = p; // and point to the new buffer (may be 0)
|
| 1679 | assert( p <= (buf+length) ); |
| 1680 | } |
| 1681 | else if ( *p == 0xd ) { |
| 1682 | // Carriage return. Append what we have so far, then
|
| 1683 | // handle moving forward in the buffer.
|
| 1684 | if ( (p-lastPos) > 0 ) { |
| 1685 | data.append( lastPos, p-lastPos ); // do not add the CR
|
| 1686 | } |
| 1687 | data += (char)0xa; // a proper newline |
| 1688 | |
| 1689 | if ( *(p+1) == 0xa ) { |
| 1690 | // Carriage return - new line sequence
|
| 1691 | p += 2;
|
| 1692 | lastPos = p; |
| 1693 | assert( p <= (buf+length) ); |
| 1694 | } |
| 1695 | else {
|
| 1696 | // it was followed by something else...that is presumably characters again.
|
| 1697 | ++p; |
| 1698 | lastPos = p; |
| 1699 | assert( p <= (buf+length) ); |
| 1700 | } |
| 1701 | } |
| 1702 | else {
|
| 1703 | ++p; |
| 1704 | } |
| 1705 | } |
| 1706 | // Handle any left over characters.
|
| 1707 | if ( p-lastPos ) {
|
| 1708 | data.append( lastPos, p-lastPos ); |
| 1709 | } |
| 1710 | delete [] buf; |
| 1711 | buf = 0;
|
| 1712 | |
| 1713 | Parse( data.c_str(), 0, encoding );
|
| 1714 | |
| 1715 | if ( Error() )
|
| 1716 | return false; |
| 1717 | else
|
| 1718 | return true; |
| 1719 | } |
