|
1 /* |
|
2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: This module contains implementation of CStifItemParser |
|
15 * class member functions. |
|
16 * |
|
17 */ |
|
18 |
|
19 // INCLUDE FILES |
|
20 #include <e32std.h> |
|
21 #include "StifItemParser.h" |
|
22 |
|
23 // EXTERNAL DATA STRUCTURES |
|
24 // None |
|
25 |
|
26 // EXTERNAL FUNCTION PROTOTYPES |
|
27 // None |
|
28 |
|
29 // CONSTANTS |
|
30 // None |
|
31 |
|
32 // MACROS |
|
33 // None |
|
34 |
|
35 // LOCAL CONSTANTS AND MACROS |
|
36 // None |
|
37 |
|
38 // MODULE DATA STRUCTURES |
|
39 // None |
|
40 |
|
41 // LOCAL FUNCTION PROTOTYPES |
|
42 // None |
|
43 |
|
44 // FORWARD DECLARATIONS |
|
45 // None |
|
46 |
|
47 // ==================== LOCAL FUNCTIONS ======================================= |
|
48 // None |
|
49 |
|
50 /* |
|
51 ------------------------------------------------------------------------------- |
|
52 |
|
53 DESCRIPTION |
|
54 |
|
55 This module contains implementation of CStifItemParser class member |
|
56 functions. |
|
57 |
|
58 ------------------------------------------------------------------------------- |
|
59 */ |
|
60 |
|
61 // ================= MEMBER FUNCTIONS ========================================= |
|
62 |
|
63 /* |
|
64 ------------------------------------------------------------------------------- |
|
65 |
|
66 Class: CStifItemParser |
|
67 |
|
68 Method: CStifItemParser |
|
69 |
|
70 Description: Default constructor |
|
71 |
|
72 C++ default constructor can NOT contain any code, that |
|
73 might leave. |
|
74 |
|
75 Parameters: TPtrC aSection: in: Parsed section |
|
76 TInt aStartPos: in: Start point of parsing |
|
77 TInt aLength: in: Length of parsed section |
|
78 |
|
79 Return Values: None |
|
80 |
|
81 Errors/Exceptions: None |
|
82 |
|
83 Status: Approved |
|
84 |
|
85 ------------------------------------------------------------------------------- |
|
86 */ |
|
87 CStifItemParser::CStifItemParser( TPtrC aSection, |
|
88 TInt aStartPos, |
|
89 TInt aLength ) : |
|
90 iItemLineSection( aSection.Mid( aStartPos, aLength ) ), |
|
91 iItemSkipAndMarkPos( 0 ), |
|
92 iGetMethodsIndicator( EFalse ), |
|
93 iParsingType( CStifItemParser::ENormalParsing ) // Mode ON |
|
94 { |
|
95 |
|
96 } |
|
97 |
|
98 /* |
|
99 ------------------------------------------------------------------------------- |
|
100 |
|
101 Class: CStifItemParser |
|
102 |
|
103 Method: ConstructL |
|
104 |
|
105 Description: Symbian OS second phase constructor |
|
106 |
|
107 Symbian OS default constructor can leave. |
|
108 |
|
109 Parameters: None |
|
110 |
|
111 Return Values: None |
|
112 |
|
113 Errors/Exceptions: None |
|
114 |
|
115 Status: Approved |
|
116 |
|
117 ------------------------------------------------------------------------------- |
|
118 */ |
|
119 void CStifItemParser::ConstructL() |
|
120 { |
|
121 |
|
122 } |
|
123 |
|
124 /* |
|
125 ------------------------------------------------------------------------------- |
|
126 |
|
127 Class: CStifItemParser |
|
128 |
|
129 Method: NewL |
|
130 |
|
131 Description: Two-phased constructor. |
|
132 |
|
133 Parameters: TPtrC aSection: in: Parsed section |
|
134 TInt aStartPos: in: Start point of parsing |
|
135 TInt aLength: in: Length of parsed section |
|
136 |
|
137 Return Values: CStifItemParser*: pointer to CStifItemParser object |
|
138 |
|
139 Errors/Exceptions: Leaves if memory allocation fails |
|
140 Leaves if ConstructL leaves |
|
141 |
|
142 Status: Approved |
|
143 |
|
144 ------------------------------------------------------------------------------- |
|
145 */ |
|
146 EXPORT_C CStifItemParser* CStifItemParser::NewL( TPtrC aSection, |
|
147 TInt aStartPos, |
|
148 TInt aLength ) |
|
149 { |
|
150 CStifItemParser* item = new (ELeave) CStifItemParser( aSection, aStartPos, |
|
151 aLength ); |
|
152 |
|
153 CleanupStack::PushL( item ); |
|
154 item->ConstructL(); |
|
155 CleanupStack::Pop( item ); |
|
156 |
|
157 return item; |
|
158 |
|
159 } |
|
160 |
|
161 /* |
|
162 ------------------------------------------------------------------------------- |
|
163 |
|
164 Class: CStifItemParser |
|
165 |
|
166 Method: ~CStifItemParser |
|
167 |
|
168 Description: Destructor |
|
169 |
|
170 Parameters: None |
|
171 |
|
172 Return Values: None |
|
173 |
|
174 Errors/Exceptions: None |
|
175 |
|
176 Status: Approved |
|
177 |
|
178 ------------------------------------------------------------------------------- |
|
179 */ |
|
180 CStifItemParser::~CStifItemParser() |
|
181 { |
|
182 |
|
183 } |
|
184 |
|
185 /* |
|
186 ------------------------------------------------------------------------------- |
|
187 |
|
188 Class: CStifItemParser |
|
189 |
|
190 Method: ParseStartAndEndPos |
|
191 |
|
192 Description: Start and end position parser. |
|
193 Handles also quote feature parsing. EQuoteStyleParsing |
|
194 option removes correctly setted quotes(" and "). |
|
195 |
|
196 Parameters: TPtrC aSection: in: Parsed section |
|
197 const TDesC& aStartTag: in: Start tag of parsing |
|
198 TInt& aStartPos: inout: Start point of parsing |
|
199 TInt& aEndPos: inout: End point of parsing |
|
200 TInt& aLength: inout: Length of parsed section |
|
201 TInt& aExtraEndPos: inout: Used if end position needs to |
|
202 set, e.g. used in quote cases. |
|
203 |
|
204 Return Values: TInt: Error code |
|
205 |
|
206 Errors/Exceptions: None |
|
207 |
|
208 Status: Proposal |
|
209 |
|
210 ------------------------------------------------------------------------------- |
|
211 */ |
|
212 |
|
213 TInt CStifItemParser::ParseStartAndEndPos( TPtrC aSection, |
|
214 const TDesC& aStartTag, |
|
215 TInt& aStartPos, |
|
216 TInt& aEndPos, |
|
217 TInt& aLength, |
|
218 TInt& aExtraEndPos ) |
|
219 { |
|
220 aStartPos = 0; |
|
221 aEndPos = 0; |
|
222 aExtraEndPos = 0; // Normally this is 0 |
|
223 |
|
224 RBuf tag( aStartTag.AllocL() ); |
|
225 // Remove whitespaces at the begining and end of the tag |
|
226 tag.Trim(); |
|
227 |
|
228 // Create parser |
|
229 TLex lex( aSection ); |
|
230 // Move parsing pointer to position from which parsing will start |
|
231 lex.SkipAndMark( iItemSkipAndMarkPos ); |
|
232 |
|
233 TBool tagWithEqualMark = EFalse; |
|
234 |
|
235 // Check if tag is defined |
|
236 if ( tag.Length() != 0 ) |
|
237 { |
|
238 // Check if tag contains '=' character at the end. |
|
239 // If tag is "=" then we treat it as normal tag (not as tag with '=' |
|
240 // character). |
|
241 if ( ( tag.Length() > 1 ) && ( tag.Right( 1 ) == _L("=") ) ) |
|
242 { |
|
243 // Tag contains '=' character. Remove '=' so only clean tag remains. |
|
244 tagWithEqualMark = ETrue; |
|
245 tag.SetLength( tag.Length() - 1 ); |
|
246 tag.Trim(); |
|
247 } |
|
248 |
|
249 // Search for specified tag in parsed text |
|
250 while( !lex.Eos() ) |
|
251 { |
|
252 lex.SkipSpaceAndMark(); |
|
253 TPtrC token = lex.NextToken(); |
|
254 if ( tagWithEqualMark ) |
|
255 { |
|
256 if ( ( token == tag ) && ( !lex.Eos() ) ) // "tag = val" or "tag =val" |
|
257 { |
|
258 lex.SkipSpaceAndMark(); |
|
259 TPtrC val = lex.NextToken(); |
|
260 lex.UnGetToMark(); |
|
261 if ( val == _L("=") ) // "tag = val" |
|
262 { |
|
263 lex.Inc(); |
|
264 break; |
|
265 } |
|
266 else // "tag =val" |
|
267 { |
|
268 if ( val.Left( 1 ) == _L("=") ) |
|
269 { |
|
270 // Skip "=" character. |
|
271 lex.Inc(); |
|
272 break; |
|
273 } |
|
274 else // We didn't find any variation of "tag=" |
|
275 { |
|
276 lex.UnGetToMark(); |
|
277 } |
|
278 } |
|
279 } |
|
280 else // "tag=val" or "tag= val" |
|
281 { |
|
282 // It handles both situations |
|
283 if ( ( token.Find( tag ) == 0 ) && ( token.Find( _L("=") ) == tag.Length() ) ) |
|
284 { |
|
285 lex.UnGetToMark(); |
|
286 lex.SkipAndMark( tag.Length() + 1 ); |
|
287 lex.SkipSpace(); |
|
288 break; |
|
289 } |
|
290 } |
|
291 } |
|
292 else |
|
293 { |
|
294 // Tag without '=' character. Just compare. |
|
295 if ( token == tag ) |
|
296 { |
|
297 break; |
|
298 } |
|
299 } |
|
300 } |
|
301 |
|
302 // Check if we are at the end of parsed text |
|
303 if ( lex.Eos() ) |
|
304 { |
|
305 // We are at the end of parsed text. Eaven if we found tag its value |
|
306 // is not defined. |
|
307 tag.Close(); |
|
308 return KErrNotFound; |
|
309 } |
|
310 |
|
311 } |
|
312 |
|
313 tag.Close(); |
|
314 |
|
315 if( iParsingType == CStifItemParser::ENormalParsing ) |
|
316 { |
|
317 TPtrC ptr = lex.NextToken(); |
|
318 aEndPos = lex.Offset(); // End position |
|
319 aStartPos = aEndPos - ptr.Length(); // Start position |
|
320 } |
|
321 else |
|
322 { |
|
323 lex.SkipSpaceAndMark(); |
|
324 TPtrC token = lex.NextToken(); |
|
325 lex.UnGetToMark(); |
|
326 |
|
327 if ( token.Length() == 0 ) |
|
328 { |
|
329 return KErrNotFound; |
|
330 } |
|
331 |
|
332 if ( token.Left( 1 ) == _L("\"") ) |
|
333 { |
|
334 lex.Inc(); |
|
335 aStartPos = lex.Offset(); |
|
336 |
|
337 TBool foundEndingQuoteMark = false; |
|
338 while( !lex.Eos() ) |
|
339 { |
|
340 if ( lex.Get() == '"' ) |
|
341 { |
|
342 foundEndingQuoteMark = ETrue; |
|
343 break;; |
|
344 } |
|
345 } |
|
346 |
|
347 if ( foundEndingQuoteMark ) |
|
348 { |
|
349 aEndPos = lex.Offset() - 1; |
|
350 if ( aEndPos > aStartPos ) |
|
351 { |
|
352 aExtraEndPos = 1; |
|
353 } |
|
354 else |
|
355 { |
|
356 aStartPos--; |
|
357 aEndPos++; |
|
358 } |
|
359 } |
|
360 else |
|
361 { |
|
362 lex.UnGetToMark(); |
|
363 aStartPos = lex.Offset(); |
|
364 TPtrC ptr = lex.NextToken(); |
|
365 aEndPos = lex.Offset(); // End position |
|
366 } |
|
367 } |
|
368 else |
|
369 { |
|
370 TPtrC ptr = lex.NextToken(); |
|
371 aEndPos = lex.Offset(); // End position |
|
372 aStartPos = aEndPos - ptr.Length(); // Start position |
|
373 } |
|
374 } |
|
375 |
|
376 aLength = ( aEndPos - aStartPos ); |
|
377 |
|
378 // aStartPos is negative (0 is allowed) or length is negative |
|
379 if( ( aLength <= 0 ) && ( iParsingType == CStifItemParser::ENormalParsing ) ) |
|
380 { |
|
381 return KErrNotFound; |
|
382 } |
|
383 |
|
384 return KErrNone; |
|
385 } |
|
386 |
|
387 /* |
|
388 ------------------------------------------------------------------------------- |
|
389 |
|
390 Class: CStifItemParser |
|
391 |
|
392 Method: GetString |
|
393 |
|
394 Description: Get a string. |
|
395 |
|
396 Search an item from the section and return everything after the item until |
|
397 separator cut the parsing. |
|
398 If start tag is empty the first string will be parsed and returned. |
|
399 |
|
400 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
401 TPtrC& aString: inout: Parsed string |
|
402 |
|
403 Return Values: TInt: Error code |
|
404 |
|
405 Errors/Exceptions: None |
|
406 |
|
407 Status: Approved |
|
408 |
|
409 ------------------------------------------------------------------------------- |
|
410 */ |
|
411 EXPORT_C TInt CStifItemParser::GetString( const TDesC& aTag, TPtrC& aString ) |
|
412 { |
|
413 if ( 0 == iItemLineSection.Length() ) |
|
414 { |
|
415 // Probably parsering is failed |
|
416 return KErrNotFound; |
|
417 } |
|
418 |
|
419 TInt startPos( 0 ); |
|
420 TInt endPos( 0 ); |
|
421 TInt length( 0 ); |
|
422 TInt extraEndPos( 0 ); |
|
423 |
|
424 iItemSkipAndMarkPos = 0; |
|
425 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
426 endPos, length, extraEndPos ); |
|
427 if ( KErrNone != ret) |
|
428 { |
|
429 // Nothing to parse |
|
430 return ret; |
|
431 } |
|
432 |
|
433 // Current position for forward parsing operations |
|
434 iItemSkipAndMarkPos = endPos + extraEndPos; |
|
435 |
|
436 // Take string |
|
437 aString.Set( (TUint16*)&iItemLineSection[startPos], length ); |
|
438 |
|
439 // Indicator that GetString has been used |
|
440 iGetMethodsIndicator = ETrue; |
|
441 |
|
442 return KErrNone; |
|
443 |
|
444 } |
|
445 |
|
446 /* |
|
447 ------------------------------------------------------------------------------- |
|
448 |
|
449 Class: CStifItemParser |
|
450 |
|
451 Method: GetNextString |
|
452 |
|
453 Description: Get a next string. |
|
454 |
|
455 Get next string until separator cut the parsing. GetString or GetInt or |
|
456 GetChar must be called before call GetNextString method. |
|
457 |
|
458 Parameters: TPtrC& aString: inout: Parsed string |
|
459 |
|
460 Return Values: TInt: Error code |
|
461 |
|
462 Errors/Exceptions: None |
|
463 |
|
464 Status: Approved |
|
465 |
|
466 ------------------------------------------------------------------------------- |
|
467 */ |
|
468 EXPORT_C TInt CStifItemParser::GetNextString( TPtrC& aString ) |
|
469 { |
|
470 // GetString(), GetInt() or GetChar() is not called |
|
471 if ( !iGetMethodsIndicator ) |
|
472 { |
|
473 return KErrNotReady; |
|
474 } |
|
475 |
|
476 if ( 0 == iItemLineSection.Length() ) |
|
477 { |
|
478 // Probably parsering is failed |
|
479 return KErrNotFound; |
|
480 } |
|
481 |
|
482 TInt startPos( 0 ); |
|
483 TInt endPos( 0 ); |
|
484 TInt length( 0 ); |
|
485 TInt extraEndPos( 0 ); |
|
486 TInt ret = ParseStartAndEndPos( iItemLineSection, KNullDesC, startPos, |
|
487 endPos, length, extraEndPos ); |
|
488 if ( KErrNone != ret) |
|
489 { |
|
490 // Nothing to parse |
|
491 return ret; |
|
492 } |
|
493 |
|
494 // Current position for forward parsing operations |
|
495 iItemSkipAndMarkPos = endPos + extraEndPos; |
|
496 |
|
497 // Take string |
|
498 aString.Set( (TUint16*)&iItemLineSection[startPos], length ); |
|
499 |
|
500 return KErrNone; |
|
501 |
|
502 } |
|
503 |
|
504 /* |
|
505 ------------------------------------------------------------------------------- |
|
506 |
|
507 Class: CStifItemParser |
|
508 |
|
509 Method: GetNextString |
|
510 |
|
511 Description: Get a next string with tag. |
|
512 |
|
513 Get next string with tag until separator cut the parsing. If start tag is |
|
514 empty the next string will be parsed and returned. |
|
515 GetString or GetInt or GetChar must be called before call GetNextString |
|
516 method. |
|
517 |
|
518 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
519 TPtrC& aString: inout: Parsed string |
|
520 |
|
521 Return Values: TInt: Error code |
|
522 |
|
523 Errors/Exceptions: None |
|
524 |
|
525 Status: Approved |
|
526 |
|
527 ------------------------------------------------------------------------------- |
|
528 */ |
|
529 EXPORT_C TInt CStifItemParser::GetNextString( const TDesC& aTag, |
|
530 TPtrC& aString ) |
|
531 { |
|
532 // GetString(), GetInt() or GetChar() is not called |
|
533 if ( !iGetMethodsIndicator ) |
|
534 { |
|
535 return KErrNotReady; |
|
536 } |
|
537 |
|
538 if ( 0 == iItemLineSection.Length() ) |
|
539 { |
|
540 // Probably parsering is failed |
|
541 return KErrNotFound; |
|
542 } |
|
543 |
|
544 TInt startPos( 0 ); |
|
545 TInt endPos( 0 ); |
|
546 TInt length( 0 ); |
|
547 TInt extraEndPos( 0 ); |
|
548 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
549 endPos, length, extraEndPos ); |
|
550 if ( KErrNone != ret) |
|
551 { |
|
552 // Nothing to parse |
|
553 return ret; |
|
554 } |
|
555 |
|
556 // Current position for forward parsing operations |
|
557 iItemSkipAndMarkPos = endPos + extraEndPos; |
|
558 |
|
559 // Take string |
|
560 aString.Set( (TUint16*)&iItemLineSection[startPos], length ); |
|
561 |
|
562 return KErrNone; |
|
563 |
|
564 } |
|
565 |
|
566 /* |
|
567 ------------------------------------------------------------------------------- |
|
568 |
|
569 Class: CStifItemParser |
|
570 |
|
571 Method: GetInt |
|
572 |
|
573 Description: Get a integer. |
|
574 |
|
575 Search an item from the section and return integer after the item until |
|
576 separator cut the parsing. |
|
577 If start tag is empty the first integer will be parsed and returned. |
|
578 |
|
579 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
580 TInt& aInteger: inout: Parsed integer |
|
581 |
|
582 Return Values: TInt: Error code |
|
583 |
|
584 Errors/Exceptions: None |
|
585 |
|
586 Status: Approved |
|
587 |
|
588 ------------------------------------------------------------------------------- |
|
589 */ |
|
590 EXPORT_C TInt CStifItemParser::GetInt( const TDesC& aTag, TInt& aInteger ) |
|
591 { |
|
592 if ( 0 == iItemLineSection.Length() ) |
|
593 { |
|
594 // Probably parsering is failed |
|
595 return KErrNotFound; |
|
596 } |
|
597 |
|
598 TInt startPos( 0 ); |
|
599 TInt endPos( 0 ); |
|
600 TInt length( 0 ); |
|
601 TInt extraEndPos( 0 ); |
|
602 |
|
603 iItemSkipAndMarkPos = 0; |
|
604 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
605 endPos, length, extraEndPos ); |
|
606 if ( KErrNone != ret ) |
|
607 { |
|
608 // Nothing to parse |
|
609 return ret; |
|
610 } |
|
611 |
|
612 // Current position for forward parsing operations |
|
613 iItemSkipAndMarkPos = endPos; |
|
614 |
|
615 // Indicator that GetInt has been used |
|
616 iGetMethodsIndicator = ETrue; |
|
617 |
|
618 // Take integer |
|
619 TLex lex( iItemLineSection ); |
|
620 // Mark to current position of parsing |
|
621 lex.SkipAndMark( startPos ); |
|
622 lex.SkipSpace(); |
|
623 return lex.Val( aInteger ); |
|
624 |
|
625 } |
|
626 |
|
627 /* |
|
628 ------------------------------------------------------------------------------- |
|
629 |
|
630 Class: CStifItemParser |
|
631 |
|
632 Method: GetNextInt |
|
633 |
|
634 Description: Get a next integer. |
|
635 |
|
636 Get next integer until separator cut the parsing and returns it. |
|
637 GetString or GetInt or GetChar must be called before call GetNextInt |
|
638 method. |
|
639 |
|
640 Parameters: TInt& aInteger: inout: Parsed integer |
|
641 |
|
642 Return Values: TInt: Error code |
|
643 |
|
644 Errors/Exceptions: None |
|
645 |
|
646 Status: Approved |
|
647 |
|
648 ------------------------------------------------------------------------------- |
|
649 */ |
|
650 EXPORT_C TInt CStifItemParser::GetNextInt( TInt& aInteger ) |
|
651 { |
|
652 // GetString(), GetInt() or GetChar() is not called |
|
653 if ( !iGetMethodsIndicator ) |
|
654 { |
|
655 return KErrNotReady; |
|
656 } |
|
657 if ( 0 == iItemLineSection.Length() ) |
|
658 { |
|
659 // Probably parsering is failed |
|
660 return KErrNotFound; |
|
661 } |
|
662 |
|
663 TInt startPos( 0 ); |
|
664 TInt endPos( 0 ); |
|
665 TInt length( 0 ); |
|
666 TInt extraEndPos( 0 ); |
|
667 TInt ret = ParseStartAndEndPos( iItemLineSection, KNullDesC, startPos, |
|
668 endPos, length, extraEndPos ); |
|
669 if ( KErrNone != ret ) |
|
670 { |
|
671 // Nothing to parse |
|
672 return ret; |
|
673 } |
|
674 |
|
675 // Current position for forward parsing operations |
|
676 iItemSkipAndMarkPos = endPos; |
|
677 |
|
678 // Take integer |
|
679 TLex lex( iItemLineSection ); |
|
680 // Mark to current position of parsing |
|
681 lex.SkipAndMark( startPos ); |
|
682 lex.SkipSpace(); |
|
683 return lex.Val( aInteger ); |
|
684 |
|
685 } |
|
686 |
|
687 /* |
|
688 ------------------------------------------------------------------------------- |
|
689 |
|
690 Class: CStifItemParser |
|
691 |
|
692 Method: GetNextInt |
|
693 |
|
694 Description: Get a next integer with tag. |
|
695 |
|
696 Get next integer with tag until separator cut the parsing. If start tag is |
|
697 empty the next integer will be parsed and returned. |
|
698 GetString or GetInt or GetChar must be called before call GetNextInt |
|
699 method. |
|
700 |
|
701 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
702 TInt& aInteger: inout: Parsed integer |
|
703 |
|
704 Return Values: TInt: Error code |
|
705 |
|
706 Errors/Exceptions: None |
|
707 |
|
708 Status: Approved |
|
709 |
|
710 ------------------------------------------------------------------------------- |
|
711 */ |
|
712 EXPORT_C TInt CStifItemParser::GetNextInt( const TDesC& aTag, TInt& aInteger ) |
|
713 { |
|
714 // GetString(), GetInt() or GetChar() is not called |
|
715 if ( !iGetMethodsIndicator ) |
|
716 { |
|
717 return KErrNotReady; |
|
718 } |
|
719 if ( 0 == iItemLineSection.Length() ) |
|
720 { |
|
721 // Probably parsering is failed |
|
722 return KErrNotFound; |
|
723 } |
|
724 |
|
725 TInt startPos( 0 ); |
|
726 TInt endPos( 0 ); |
|
727 TInt length( 0 ); |
|
728 TInt extraEndPos( 0 ); |
|
729 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
730 endPos, length, extraEndPos ); |
|
731 if ( KErrNone != ret ) |
|
732 { |
|
733 // Nothing to parse |
|
734 return ret; |
|
735 } |
|
736 |
|
737 // Current position for forward parsing operations |
|
738 iItemSkipAndMarkPos = endPos; |
|
739 |
|
740 // Take integer |
|
741 TLex lex( iItemLineSection ); |
|
742 // Mark to current position of parsing |
|
743 lex.SkipAndMark( startPos ); |
|
744 lex.SkipSpace(); |
|
745 return lex.Val( aInteger ); |
|
746 |
|
747 } |
|
748 |
|
749 /* |
|
750 ------------------------------------------------------------------------------- |
|
751 |
|
752 Class: CStifItemParser |
|
753 |
|
754 Method: GetInt |
|
755 |
|
756 Description: Get a integer. |
|
757 |
|
758 Search an item from the section and return integer after the item until |
|
759 separator cut the parsing. |
|
760 If start tag is empty the first integer will be parsed and returned. |
|
761 |
|
762 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
763 TUint& aInteger: inout: Parsed integer |
|
764 TRadix aRadix: in: Convert a number into different |
|
765 presentation. For default: EDecimal. |
|
766 |
|
767 Return Values: TInt: Error code |
|
768 |
|
769 Errors/Exceptions: None |
|
770 |
|
771 Status: Approved |
|
772 |
|
773 ------------------------------------------------------------------------------- |
|
774 */ |
|
775 EXPORT_C TInt CStifItemParser::GetInt( const TDesC& aTag, |
|
776 TUint& aInteger, |
|
777 TRadix aRadix ) |
|
778 { |
|
779 if ( 0 == iItemLineSection.Length() ) |
|
780 { |
|
781 // Probably parsering is failed |
|
782 return KErrNotFound; |
|
783 } |
|
784 |
|
785 TInt startPos( 0 ); |
|
786 TInt endPos( 0 ); |
|
787 TInt length( 0 ); |
|
788 TInt extraEndPos( 0 ); |
|
789 |
|
790 iItemSkipAndMarkPos = 0; |
|
791 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
792 endPos, length, extraEndPos ); |
|
793 if ( KErrNone != ret ) |
|
794 { |
|
795 // Nothing to parse |
|
796 return ret; |
|
797 } |
|
798 |
|
799 // Current position for forward parsing operations |
|
800 iItemSkipAndMarkPos = endPos; |
|
801 |
|
802 // Indicator that GetInt has been used |
|
803 iGetMethodsIndicator = ETrue; |
|
804 |
|
805 // Take integer |
|
806 TLex lex( iItemLineSection ); |
|
807 // Mark to current position of parsing |
|
808 lex.SkipAndMark( startPos ); |
|
809 lex.SkipSpace(); |
|
810 // NOTE: If parsed integer is e.g. '-1' and aRadix is EDesimal the lex will |
|
811 // return error code -2(KErrGeneral). Main reason is for this new TUint |
|
812 // method that cast operation does not work in above case and -2 returned. |
|
813 // In this case use GetInt method that reference type is TInt. |
|
814 return lex.Val( aInteger, aRadix ); |
|
815 |
|
816 } |
|
817 |
|
818 /* |
|
819 ------------------------------------------------------------------------------- |
|
820 |
|
821 Class: CStifItemParser |
|
822 |
|
823 Method: GetNextInt |
|
824 |
|
825 Description: Get a next integer. |
|
826 |
|
827 Get next integer until separator cut the parsing and returns it. |
|
828 GetString or GetInt or GetChar must be called before call GetNextInt |
|
829 method. |
|
830 |
|
831 Parameters: TUint& aInteger: inout: Parsed integer |
|
832 TRadix aRadix: in: Convert a number into different |
|
833 presentation. For default: EDecimal. |
|
834 |
|
835 Return Values: TInt: Error code |
|
836 |
|
837 Errors/Exceptions: None |
|
838 |
|
839 Status: Approved |
|
840 |
|
841 ------------------------------------------------------------------------------- |
|
842 */ |
|
843 EXPORT_C TInt CStifItemParser::GetNextInt( TUint& aInteger, |
|
844 TRadix aRadix ) |
|
845 { |
|
846 // GetString(), GetInt() or GetChar() is not called |
|
847 if ( !iGetMethodsIndicator ) |
|
848 { |
|
849 return KErrNotReady; |
|
850 } |
|
851 if ( 0 == iItemLineSection.Length() ) |
|
852 { |
|
853 // Probably parsering is failed |
|
854 return KErrNotFound; |
|
855 } |
|
856 |
|
857 TInt startPos( 0 ); |
|
858 TInt endPos( 0 ); |
|
859 TInt length( 0 ); |
|
860 TInt extraEndPos( 0 ); |
|
861 TInt ret = ParseStartAndEndPos( iItemLineSection, KNullDesC, startPos, |
|
862 endPos, length, extraEndPos ); |
|
863 if ( KErrNone != ret ) |
|
864 { |
|
865 // Nothing to parse |
|
866 return ret; |
|
867 } |
|
868 |
|
869 // Current position for forward parsing operations |
|
870 iItemSkipAndMarkPos = endPos; |
|
871 |
|
872 // Take integer |
|
873 TLex lex( iItemLineSection ); |
|
874 // Mark to current position of parsing |
|
875 lex.SkipAndMark( startPos ); |
|
876 lex.SkipSpace(); |
|
877 // NOTE: If parsed integer is e.g. '-1' and aRadix is EDesimal the lex will |
|
878 // return error code -2(KErrGeneral). Main reason is for this new TUint |
|
879 // method that cast operation does not work in above case and -2 returned. |
|
880 // In this case use GetNextInt method that reference type is TInt. |
|
881 return lex.Val( aInteger, aRadix ); |
|
882 |
|
883 } |
|
884 |
|
885 /* |
|
886 ------------------------------------------------------------------------------- |
|
887 |
|
888 Class: CStifItemParser |
|
889 |
|
890 Method: GetNextInt |
|
891 |
|
892 Description: Get a next integer with tag. |
|
893 |
|
894 Get next integer with tag until separator cut the parsing. If start tag is |
|
895 empty the next integer will be parsed and returned. |
|
896 GetString or GetInt or GetChar must be called before call GetNextInt |
|
897 method. |
|
898 |
|
899 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
900 TUint& aInteger: inout: Parsed integer |
|
901 TRadix aRadix: in: Convert a number into different |
|
902 presentation. For default: EDecimal. |
|
903 |
|
904 Return Values: TInt: Error code |
|
905 |
|
906 Errors/Exceptions: None |
|
907 |
|
908 Status: Approved |
|
909 |
|
910 ------------------------------------------------------------------------------- |
|
911 */ |
|
912 EXPORT_C TInt CStifItemParser::GetNextInt( const TDesC& aTag, |
|
913 TUint& aInteger, |
|
914 TRadix aRadix ) |
|
915 { |
|
916 // GetString(), GetInt() or GetChar() is not called |
|
917 if ( !iGetMethodsIndicator ) |
|
918 { |
|
919 return KErrNotReady; |
|
920 } |
|
921 if ( 0 == iItemLineSection.Length() ) |
|
922 { |
|
923 // Probably parsering is failed |
|
924 return KErrNotFound; |
|
925 } |
|
926 |
|
927 TInt startPos( 0 ); |
|
928 TInt endPos( 0 ); |
|
929 TInt length( 0 ); |
|
930 TInt extraEndPos( 0 ); |
|
931 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
932 endPos, length, extraEndPos ); |
|
933 if ( KErrNone != ret ) |
|
934 { |
|
935 // Nothing to parse |
|
936 return ret; |
|
937 } |
|
938 |
|
939 // Current position for forward parsing operations |
|
940 iItemSkipAndMarkPos = endPos; |
|
941 |
|
942 // Take integer |
|
943 TLex lex( iItemLineSection ); |
|
944 // Mark to current position of parsing |
|
945 lex.SkipAndMark( startPos ); |
|
946 lex.SkipSpace(); |
|
947 // NOTE: If parsed integer is e.g. '-1' and aRadix is EDesimal the lex will |
|
948 // return error code -2(KErrGeneral). Main reason is for this new TUint |
|
949 // method that cast operation does not work in above case and -2 returned. |
|
950 // In this case use GetNextInt method that reference type is TInt. |
|
951 return lex.Val( aInteger, aRadix ); |
|
952 |
|
953 } |
|
954 |
|
955 /* |
|
956 ------------------------------------------------------------------------------- |
|
957 |
|
958 Class: CStifItemParser |
|
959 |
|
960 Method: GetChar |
|
961 |
|
962 Description: Get a character. |
|
963 |
|
964 Search an item from the section and return character after the item. |
|
965 If start tag is empty the first character will be parsed and returned. |
|
966 |
|
967 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
968 TChar& aCharacter: inout: Parsed character |
|
969 |
|
970 Return Values: TInt: Error code |
|
971 |
|
972 Errors/Exceptions: None |
|
973 |
|
974 Status: Approved |
|
975 |
|
976 ------------------------------------------------------------------------------- |
|
977 */ |
|
978 EXPORT_C TInt CStifItemParser::GetChar( const TDesC& aTag, TChar& aCharacter ) |
|
979 { |
|
980 if ( 0 == iItemLineSection.Length() ) |
|
981 { |
|
982 // Probably parsering is failed |
|
983 return KErrNotFound; |
|
984 } |
|
985 |
|
986 TInt startPos( 0 ); |
|
987 TInt endPos( 0 ); |
|
988 TInt length( 0 ); |
|
989 TInt extraEndPos( 0 ); |
|
990 |
|
991 iItemSkipAndMarkPos = 0; |
|
992 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
993 endPos, length, extraEndPos ); |
|
994 if ( KErrNone != ret ) |
|
995 { |
|
996 // Nothing to parse |
|
997 return ret; |
|
998 } |
|
999 |
|
1000 // Current position for forward parsing operations |
|
1001 iItemSkipAndMarkPos = startPos + 1; |
|
1002 |
|
1003 // Take character |
|
1004 aCharacter = iItemLineSection[startPos]; |
|
1005 |
|
1006 // Indicator that GetChar has been used |
|
1007 iGetMethodsIndicator = ETrue; |
|
1008 |
|
1009 return KErrNone; |
|
1010 |
|
1011 } |
|
1012 |
|
1013 /* |
|
1014 ------------------------------------------------------------------------------- |
|
1015 |
|
1016 Class: CStifItemParser |
|
1017 |
|
1018 Method: GetNextChar |
|
1019 |
|
1020 Description: Get a next character. |
|
1021 |
|
1022 Get next character and returns it. |
|
1023 GetString or GetInt or GetChar must be called before call GetNextChar |
|
1024 method. |
|
1025 |
|
1026 Parameters: TChar& aCharacter: inout: Parsed character |
|
1027 |
|
1028 Return Values: TInt: Error code |
|
1029 |
|
1030 Errors/Exceptions: None |
|
1031 |
|
1032 Status: Approved |
|
1033 |
|
1034 ------------------------------------------------------------------------------- |
|
1035 */ |
|
1036 EXPORT_C TInt CStifItemParser::GetNextChar( TChar& aCharacter ) |
|
1037 { |
|
1038 // GetString(), GetInt() or GetChar() is not called |
|
1039 if ( !iGetMethodsIndicator ) |
|
1040 { |
|
1041 return KErrNotReady; |
|
1042 } |
|
1043 if ( 0 == iItemLineSection.Length() ) |
|
1044 { |
|
1045 // Probably parsering is failed |
|
1046 return KErrNotFound; |
|
1047 } |
|
1048 |
|
1049 TInt startPos( 0 ); |
|
1050 TInt endPos( 0 ); |
|
1051 TInt length( 0 ); |
|
1052 TInt extraEndPos( 0 ); |
|
1053 TInt ret = ParseStartAndEndPos( iItemLineSection, KNullDesC, startPos, |
|
1054 endPos, length, extraEndPos ); |
|
1055 if ( KErrNone != ret ) |
|
1056 { |
|
1057 // Nothing to parse |
|
1058 return ret; |
|
1059 } |
|
1060 |
|
1061 // Current position for forward parsing operations |
|
1062 iItemSkipAndMarkPos = startPos + 1; |
|
1063 |
|
1064 // Take character |
|
1065 aCharacter = iItemLineSection[startPos]; |
|
1066 |
|
1067 return KErrNone; |
|
1068 |
|
1069 } |
|
1070 |
|
1071 /* |
|
1072 ------------------------------------------------------------------------------- |
|
1073 |
|
1074 Class: CStifItemParser |
|
1075 |
|
1076 Method: GetNextChar |
|
1077 |
|
1078 Description: Get a next character with tag. |
|
1079 |
|
1080 Get next character with tag until separator cut the parsing. If start tag |
|
1081 is empty the next character will be parsed and returned. |
|
1082 GetString or GetInt or GetChar must be called before call GetNextChar |
|
1083 method. |
|
1084 |
|
1085 Parameters: const TDesC& aTag: in: Indicates parsing start point |
|
1086 TChar& aCharacter: inout: Parsed character |
|
1087 |
|
1088 Return Values: TInt: Error code |
|
1089 |
|
1090 Errors/Exceptions: None |
|
1091 |
|
1092 Status: Approved |
|
1093 |
|
1094 ------------------------------------------------------------------------------- |
|
1095 */ |
|
1096 EXPORT_C TInt CStifItemParser::GetNextChar( const TDesC& aTag, |
|
1097 TChar& aCharacter ) |
|
1098 { |
|
1099 // GetString(), GetInt() or GetChar() is not called |
|
1100 if ( !iGetMethodsIndicator ) |
|
1101 { |
|
1102 return KErrNotReady; |
|
1103 } |
|
1104 if ( 0 == iItemLineSection.Length() ) |
|
1105 { |
|
1106 // Probably parsering is failed |
|
1107 return KErrNotFound; |
|
1108 } |
|
1109 |
|
1110 TInt startPos( 0 ); |
|
1111 TInt endPos( 0 ); |
|
1112 TInt length( 0 ); |
|
1113 TInt extraEndPos( 0 ); |
|
1114 TInt ret = ParseStartAndEndPos( iItemLineSection, aTag, startPos, |
|
1115 endPos, length, extraEndPos ); |
|
1116 if ( KErrNone != ret ) |
|
1117 { |
|
1118 // Nothing to parse |
|
1119 return ret; |
|
1120 } |
|
1121 |
|
1122 // Current position for forward parsing operations |
|
1123 iItemSkipAndMarkPos = startPos + 1; |
|
1124 |
|
1125 // Take character |
|
1126 aCharacter = iItemLineSection[startPos]; |
|
1127 |
|
1128 return KErrNone; |
|
1129 |
|
1130 } |
|
1131 |
|
1132 /* |
|
1133 ------------------------------------------------------------------------------- |
|
1134 |
|
1135 Class: CStifItemParser |
|
1136 |
|
1137 Method: Remainder |
|
1138 |
|
1139 Description: Get remaining strings in parsed line. |
|
1140 |
|
1141 Note: This method does not support the quote(TParsingType) |
|
1142 feature, only GetString and GetNextString methods include |
|
1143 support. |
|
1144 |
|
1145 Parameters: TPtrC& aString: inout: Parsed string |
|
1146 |
|
1147 Return Values: TInt: Error code |
|
1148 |
|
1149 Errors/Exceptions: None |
|
1150 |
|
1151 Status: Proposal |
|
1152 |
|
1153 ------------------------------------------------------------------------------- |
|
1154 */ |
|
1155 EXPORT_C TInt CStifItemParser::Remainder( TPtrC& aString ) |
|
1156 { |
|
1157 |
|
1158 if ( 0 == iItemLineSection.Length() ) |
|
1159 { |
|
1160 // Probably parsering is failed |
|
1161 return KErrNotFound; |
|
1162 } |
|
1163 |
|
1164 if( iItemLineSection.Length() <= iItemSkipAndMarkPos ) |
|
1165 { |
|
1166 // Nothing to parse, check here to avoid lex's crash |
|
1167 return KErrNotFound; |
|
1168 } |
|
1169 |
|
1170 // Skip space |
|
1171 TLex lex( iItemLineSection ); |
|
1172 lex.SkipAndMark( iItemSkipAndMarkPos ); |
|
1173 lex.SkipSpace(); |
|
1174 |
|
1175 if( lex.Eos() ) |
|
1176 { |
|
1177 // Remaining are only spaces. To avoid Set()'s panic |
|
1178 return KErrNotFound; |
|
1179 } |
|
1180 |
|
1181 // Take string |
|
1182 aString.Set( (TUint16*)&iItemLineSection[ lex.Offset() ], |
|
1183 iItemLineSection.Length() - lex.Offset() ); |
|
1184 |
|
1185 return KErrNone; |
|
1186 |
|
1187 } |
|
1188 |
|
1189 /* |
|
1190 ------------------------------------------------------------------------------- |
|
1191 |
|
1192 Class: CStifItemParser |
|
1193 |
|
1194 Method: SetParsingType |
|
1195 |
|
1196 Description: Parsing type can be given when parsing string(GetString and |
|
1197 GetNextString). Please see TParsingType enumeration for more |
|
1198 inforamtion. |
|
1199 |
|
1200 Parameters: CStifItemParser::TParsingType aType: in: Sets a parsing type. |
|
1201 |
|
1202 Return Values: TInt: Symbian error code |
|
1203 |
|
1204 Errors/Exceptions: None |
|
1205 |
|
1206 Status: Proposal |
|
1207 |
|
1208 ------------------------------------------------------------------------------- |
|
1209 */ |
|
1210 EXPORT_C TInt CStifItemParser::SetParsingType( |
|
1211 CStifItemParser::TParsingType aType ) |
|
1212 { |
|
1213 iParsingType = aType; |
|
1214 |
|
1215 return KErrNone; |
|
1216 |
|
1217 } |
|
1218 |
|
1219 /* |
|
1220 ------------------------------------------------------------------------------- |
|
1221 |
|
1222 Class: CStifItemParser |
|
1223 |
|
1224 Method: ParsingType |
|
1225 |
|
1226 Description: Get current parsing type. Please see TParsingType enumeration |
|
1227 for more inforamtion. |
|
1228 |
|
1229 Parameters: None |
|
1230 |
|
1231 Return Values: CStifItemParser::TParsingType: Current parsing type. |
|
1232 |
|
1233 Errors/Exceptions: None |
|
1234 |
|
1235 Status: Proposal |
|
1236 |
|
1237 ------------------------------------------------------------------------------- |
|
1238 */ |
|
1239 EXPORT_C CStifItemParser::TParsingType CStifItemParser::ParsingType() |
|
1240 { |
|
1241 return iParsingType; |
|
1242 |
|
1243 } |
|
1244 |
|
1245 // ================= OTHER EXPORTED FUNCTIONS ================================= |
|
1246 |
|
1247 // End of File |