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package org.jaxen.saxpath.base; |
64 |
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65 |
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import java.util.LinkedList; |
66 |
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67 |
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import org.jaxen.saxpath.Axis; |
68 |
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import org.jaxen.saxpath.Operator; |
69 |
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import org.jaxen.saxpath.SAXPathException; |
70 |
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import org.jaxen.saxpath.XPathHandler; |
71 |
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import org.jaxen.saxpath.XPathSyntaxException; |
72 |
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import org.jaxen.saxpath.helpers.DefaultXPathHandler; |
73 |
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74 |
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75 |
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76 |
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77 |
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78 |
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79 |
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public class XPathReader implements org.jaxen.saxpath.XPathReader |
80 |
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{ |
81 |
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private LinkedList tokens; |
82 |
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private XPathLexer lexer; |
83 |
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|
84 |
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private XPathHandler handler; |
85 |
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|
86 |
318 |
private static XPathHandler defaultHandler = new DefaultXPathHandler(); |
87 |
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88 |
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89 |
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90 |
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91 |
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|
92 |
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public XPathReader() |
93 |
10896 |
{ |
94 |
10896 |
setXPathHandler( defaultHandler ); |
95 |
10896 |
} |
96 |
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|
97 |
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public void setXPathHandler(XPathHandler handler) |
98 |
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{ |
99 |
21786 |
this.handler = handler; |
100 |
21786 |
} |
101 |
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|
102 |
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public XPathHandler getXPathHandler() |
103 |
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{ |
104 |
303654 |
return this.handler; |
105 |
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} |
106 |
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|
107 |
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public void parse(String xpath) throws SAXPathException |
108 |
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{ |
109 |
11076 |
setUpParse( xpath ); |
110 |
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|
111 |
11076 |
getXPathHandler().startXPath(); |
112 |
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|
113 |
11076 |
expr(); |
114 |
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|
115 |
10818 |
getXPathHandler().endXPath(); |
116 |
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|
117 |
10818 |
if ( LA(1) != TokenTypes.EOF ) |
118 |
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{ |
119 |
54 |
XPathSyntaxException ex = createSyntaxException( "Unexpected '" + LT(1).getTokenText() + "'" ); |
120 |
54 |
throw ex; |
121 |
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} |
122 |
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|
123 |
10764 |
lexer = null; |
124 |
10764 |
tokens = null; |
125 |
10764 |
} |
126 |
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|
127 |
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void setUpParse(String xpath) |
128 |
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{ |
129 |
11136 |
this.tokens = new LinkedList(); |
130 |
11136 |
this.lexer = new XPathLexer( xpath ); |
131 |
11136 |
} |
132 |
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|
133 |
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private void pathExpr() throws SAXPathException |
134 |
|
{ |
135 |
23544 |
getXPathHandler().startPathExpr(); |
136 |
|
|
137 |
23544 |
switch ( LA(1) ) |
138 |
|
{ |
139 |
|
case TokenTypes.INTEGER: |
140 |
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case TokenTypes.DOUBLE: |
141 |
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case TokenTypes.LITERAL: |
142 |
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{ |
143 |
8502 |
filterExpr(); |
144 |
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|
145 |
8502 |
if ( LA(1) == TokenTypes.SLASH || LA(1) == TokenTypes.DOUBLE_SLASH ) |
146 |
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{ |
147 |
6 |
XPathSyntaxException ex = createSyntaxException("Node-set expected"); |
148 |
6 |
throw ex; |
149 |
|
} |
150 |
|
|
151 |
|
break; |
152 |
|
} |
153 |
|
case TokenTypes.LEFT_PAREN: |
154 |
|
case TokenTypes.DOLLAR: |
155 |
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{ |
156 |
444 |
filterExpr(); |
157 |
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|
158 |
414 |
if ( LA(1) == TokenTypes.SLASH || LA(1) == TokenTypes.DOUBLE_SLASH) |
159 |
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{ |
160 |
30 |
locationPath( false ); |
161 |
|
} |
162 |
|
break; |
163 |
|
} |
164 |
|
case TokenTypes.IDENTIFIER: |
165 |
|
{ |
166 |
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|
167 |
6852 |
if ( ( LA(2) == TokenTypes.LEFT_PAREN |
168 |
|
&& |
169 |
|
! isNodeTypeName( LT(1) ) ) |
170 |
|
|| |
171 |
|
( LA(2) == TokenTypes.COLON |
172 |
|
&& |
173 |
|
LA(4) == TokenTypes.LEFT_PAREN) ) |
174 |
|
{ |
175 |
4632 |
filterExpr(); |
176 |
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|
177 |
4608 |
if ( LA(1) == TokenTypes.SLASH || LA(1) == TokenTypes.DOUBLE_SLASH) |
178 |
|
{ |
179 |
156 |
locationPath( false ); |
180 |
|
} |
181 |
|
} |
182 |
|
else |
183 |
|
{ |
184 |
2220 |
locationPath( false ); |
185 |
|
} |
186 |
2184 |
break; |
187 |
|
} |
188 |
|
case TokenTypes.DOT: |
189 |
|
case TokenTypes.DOT_DOT: |
190 |
|
case TokenTypes.STAR: |
191 |
|
case TokenTypes.AT: |
192 |
|
{ |
193 |
1638 |
locationPath( false ); |
194 |
1638 |
break; |
195 |
|
} |
196 |
|
case TokenTypes.SLASH: |
197 |
|
case TokenTypes.DOUBLE_SLASH: |
198 |
|
{ |
199 |
6078 |
locationPath( true ); |
200 |
5928 |
break; |
201 |
|
} |
202 |
|
default: |
203 |
|
{ |
204 |
30 |
XPathSyntaxException ex = createSyntaxException( "Unexpected '" + LT(1).getTokenText() + "'" ); |
205 |
30 |
throw ex; |
206 |
|
} |
207 |
|
} |
208 |
|
|
209 |
23256 |
getXPathHandler().endPathExpr(); |
210 |
23256 |
} |
211 |
|
|
212 |
|
private void numberDouble() throws SAXPathException |
213 |
|
{ |
214 |
276 |
Token token = match( TokenTypes.DOUBLE ); |
215 |
|
|
216 |
276 |
getXPathHandler().number( Double.parseDouble( token.getTokenText() ) ); |
217 |
276 |
} |
218 |
|
|
219 |
|
private void numberInteger() throws SAXPathException |
220 |
|
{ |
221 |
4278 |
Token token = match( TokenTypes.INTEGER ); |
222 |
|
|
223 |
4278 |
String text = token.getTokenText(); |
224 |
|
try { |
225 |
4278 |
getXPathHandler().number( Integer.parseInt( text ) ); |
226 |
|
} |
227 |
0 |
catch (NumberFormatException ex) { |
228 |
0 |
getXPathHandler().number( Double.parseDouble( text ) ); |
229 |
4278 |
} |
230 |
|
|
231 |
4278 |
} |
232 |
|
|
233 |
|
private void literal() throws SAXPathException |
234 |
|
{ |
235 |
3948 |
Token token = match( TokenTypes.LITERAL ); |
236 |
|
|
237 |
3948 |
getXPathHandler().literal( token.getTokenText() ); |
238 |
3948 |
} |
239 |
|
|
240 |
|
private void functionCall() throws SAXPathException |
241 |
|
{ |
242 |
4632 |
String prefix = null; |
243 |
4632 |
String functionName = null; |
244 |
|
|
245 |
4632 |
if ( LA(2) == TokenTypes.COLON ) |
246 |
|
{ |
247 |
6 |
prefix = match( TokenTypes.IDENTIFIER ).getTokenText(); |
248 |
6 |
match( TokenTypes.COLON ); |
249 |
|
} |
250 |
|
else |
251 |
|
{ |
252 |
4626 |
prefix = ""; |
253 |
|
} |
254 |
|
|
255 |
4632 |
functionName = match( TokenTypes.IDENTIFIER ).getTokenText(); |
256 |
|
|
257 |
4632 |
getXPathHandler().startFunction( prefix, |
258 |
|
functionName ); |
259 |
|
|
260 |
4632 |
match ( TokenTypes.LEFT_PAREN ); |
261 |
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|
262 |
4632 |
arguments(); |
263 |
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|
264 |
4608 |
match ( TokenTypes.RIGHT_PAREN ); |
265 |
|
|
266 |
4608 |
getXPathHandler().endFunction(); |
267 |
4608 |
} |
268 |
|
|
269 |
|
private void arguments() throws SAXPathException |
270 |
|
{ |
271 |
6534 |
while ( LA(1) != TokenTypes.RIGHT_PAREN ) |
272 |
|
{ |
273 |
5496 |
expr(); |
274 |
|
|
275 |
5472 |
if ( LA(1) == TokenTypes.COMMA ) |
276 |
|
{ |
277 |
1902 |
match( TokenTypes.COMMA ); |
278 |
|
} |
279 |
|
else |
280 |
|
{ |
281 |
|
break; |
282 |
|
} |
283 |
|
} |
284 |
4608 |
} |
285 |
|
|
286 |
|
private void filterExpr() throws SAXPathException |
287 |
|
{ |
288 |
|
|
289 |
13578 |
getXPathHandler().startFilterExpr(); |
290 |
|
|
291 |
13578 |
switch ( LA(1) ) |
292 |
|
{ |
293 |
|
case TokenTypes.INTEGER: |
294 |
|
{ |
295 |
4278 |
numberInteger(); |
296 |
4278 |
break; |
297 |
|
} |
298 |
|
case TokenTypes.DOUBLE: |
299 |
|
{ |
300 |
276 |
numberDouble(); |
301 |
276 |
break; |
302 |
|
} |
303 |
|
case TokenTypes.LITERAL: |
304 |
|
{ |
305 |
3948 |
literal(); |
306 |
3948 |
break; |
307 |
|
} |
308 |
|
case TokenTypes.LEFT_PAREN: |
309 |
|
{ |
310 |
306 |
match( TokenTypes.LEFT_PAREN ); |
311 |
306 |
expr(); |
312 |
306 |
match( TokenTypes.RIGHT_PAREN ); |
313 |
276 |
break; |
314 |
|
} |
315 |
|
case TokenTypes.IDENTIFIER: |
316 |
|
{ |
317 |
4632 |
functionCall(); |
318 |
4608 |
break; |
319 |
|
} |
320 |
|
case TokenTypes.DOLLAR: |
321 |
|
{ |
322 |
138 |
variableReference(); |
323 |
|
break; |
324 |
|
} |
325 |
|
} |
326 |
|
|
327 |
13524 |
predicates(); |
328 |
|
|
329 |
13524 |
getXPathHandler().endFilterExpr(); |
330 |
13524 |
} |
331 |
|
|
332 |
|
private void variableReference() throws SAXPathException |
333 |
|
{ |
334 |
138 |
match( TokenTypes.DOLLAR ); |
335 |
|
|
336 |
138 |
String prefix = null; |
337 |
138 |
String variableName = null; |
338 |
|
|
339 |
138 |
if ( LA(2) == TokenTypes.COLON ) |
340 |
|
{ |
341 |
6 |
prefix = match( TokenTypes.IDENTIFIER ).getTokenText(); |
342 |
6 |
match( TokenTypes.COLON ); |
343 |
|
} |
344 |
|
else |
345 |
|
{ |
346 |
132 |
prefix = ""; |
347 |
|
} |
348 |
|
|
349 |
138 |
variableName = match( TokenTypes.IDENTIFIER ).getTokenText(); |
350 |
|
|
351 |
138 |
getXPathHandler().variableReference( prefix, |
352 |
|
variableName ); |
353 |
138 |
} |
354 |
|
|
355 |
|
void locationPath(boolean isAbsolute) throws SAXPathException |
356 |
|
{ |
357 |
10134 |
switch ( LA(1) ) |
358 |
|
{ |
359 |
|
case TokenTypes.SLASH: |
360 |
|
case TokenTypes.DOUBLE_SLASH: |
361 |
|
{ |
362 |
6270 |
if ( isAbsolute ) |
363 |
|
{ |
364 |
6084 |
absoluteLocationPath(); |
365 |
|
} |
366 |
|
else |
367 |
|
{ |
368 |
186 |
relativeLocationPath(); |
369 |
|
} |
370 |
174 |
break; |
371 |
|
} |
372 |
|
case TokenTypes.AT: |
373 |
|
case TokenTypes.IDENTIFIER: |
374 |
|
case TokenTypes.DOT: |
375 |
|
case TokenTypes.DOT_DOT: |
376 |
|
case TokenTypes.STAR: |
377 |
|
{ |
378 |
3864 |
relativeLocationPath(); |
379 |
3828 |
break; |
380 |
|
} |
381 |
|
default: |
382 |
|
{ |
383 |
0 |
XPathSyntaxException ex = createSyntaxException( "Unexpected '" + LT(1).getTokenText() + "'" ); |
384 |
0 |
throw ex; |
385 |
|
} |
386 |
|
} |
387 |
9936 |
} |
388 |
|
|
389 |
|
private void absoluteLocationPath() throws SAXPathException |
390 |
|
{ |
391 |
6084 |
getXPathHandler().startAbsoluteLocationPath(); |
392 |
|
|
393 |
6084 |
switch ( LA(1) ) |
394 |
|
{ |
395 |
|
case TokenTypes.SLASH: |
396 |
|
{ |
397 |
5070 |
match( TokenTypes.SLASH ); |
398 |
|
|
399 |
5070 |
switch ( LA(1) ) |
400 |
|
{ |
401 |
|
|
402 |
|
case TokenTypes.DOT: |
403 |
|
case TokenTypes.DOT_DOT: |
404 |
|
case TokenTypes.AT: |
405 |
|
case TokenTypes.IDENTIFIER: |
406 |
|
case TokenTypes.STAR: |
407 |
|
{ |
408 |
4104 |
steps(); |
409 |
|
break; |
410 |
|
} |
411 |
|
} |
412 |
4950 |
break; |
413 |
|
} |
414 |
|
case TokenTypes.DOUBLE_SLASH: |
415 |
|
{ |
416 |
1014 |
getXPathHandler().startAllNodeStep( Axis.DESCENDANT_OR_SELF ); |
417 |
1014 |
getXPathHandler().endAllNodeStep(); |
418 |
|
|
419 |
1014 |
match( TokenTypes.DOUBLE_SLASH ); |
420 |
1014 |
switch ( LA(1) ) |
421 |
|
{ |
422 |
|
case TokenTypes.DOT: |
423 |
|
case TokenTypes.DOT_DOT: |
424 |
|
case TokenTypes.AT: |
425 |
|
case TokenTypes.IDENTIFIER: |
426 |
|
case TokenTypes.STAR: |
427 |
|
{ |
428 |
984 |
steps(); |
429 |
984 |
break; |
430 |
|
} |
431 |
|
default: |
432 |
30 |
XPathSyntaxException ex = this.createSyntaxException("Location path cannot end with //"); |
433 |
30 |
throw ex; |
434 |
|
} |
435 |
|
break; |
436 |
|
} |
437 |
|
} |
438 |
|
|
439 |
5934 |
getXPathHandler().endAbsoluteLocationPath(); |
440 |
5934 |
} |
441 |
|
|
442 |
|
private void relativeLocationPath() throws SAXPathException |
443 |
|
{ |
444 |
4050 |
getXPathHandler().startRelativeLocationPath(); |
445 |
|
|
446 |
4050 |
switch ( LA(1) ) |
447 |
|
{ |
448 |
|
case TokenTypes.SLASH: |
449 |
|
{ |
450 |
186 |
match( TokenTypes.SLASH ); |
451 |
186 |
break; |
452 |
|
} |
453 |
|
case TokenTypes.DOUBLE_SLASH: |
454 |
|
{ |
455 |
0 |
getXPathHandler().startAllNodeStep( Axis.DESCENDANT_OR_SELF ); |
456 |
0 |
getXPathHandler().endAllNodeStep(); |
457 |
|
|
458 |
0 |
match( TokenTypes.DOUBLE_SLASH ); |
459 |
|
|
460 |
|
break; |
461 |
|
} |
462 |
|
} |
463 |
|
|
464 |
4050 |
steps(); |
465 |
|
|
466 |
4002 |
getXPathHandler().endRelativeLocationPath(); |
467 |
4002 |
} |
468 |
|
|
469 |
|
private void steps() throws SAXPathException |
470 |
|
{ |
471 |
9138 |
switch ( LA(1) ) |
472 |
|
{ |
473 |
|
|
474 |
|
case TokenTypes.DOT: |
475 |
|
case TokenTypes.DOT_DOT: |
476 |
|
case TokenTypes.AT: |
477 |
|
case TokenTypes.IDENTIFIER: |
478 |
|
case TokenTypes.STAR: |
479 |
|
{ |
480 |
9126 |
step(); |
481 |
9090 |
break; |
482 |
|
} |
483 |
|
case TokenTypes.EOF: |
484 |
|
{ |
485 |
0 |
return; |
486 |
|
} |
487 |
|
default: |
488 |
|
{ |
489 |
12 |
XPathSyntaxException ex = createSyntaxException( "Expected one of '.', '..', '@', '*', <QName>" ); |
490 |
12 |
throw ex; |
491 |
|
} |
492 |
|
} |
493 |
|
|
494 |
|
do |
495 |
|
{ |
496 |
15102 |
if ( ( LA(1) == TokenTypes.SLASH) |
497 |
|
|| |
498 |
|
( LA(1) == TokenTypes.DOUBLE_SLASH ) ) |
499 |
|
{ |
500 |
6132 |
switch ( LA(1) ) |
501 |
|
{ |
502 |
|
case TokenTypes.SLASH: |
503 |
|
{ |
504 |
6060 |
match( TokenTypes.SLASH ); |
505 |
6060 |
break; |
506 |
|
} |
507 |
|
case TokenTypes.DOUBLE_SLASH: |
508 |
|
{ |
509 |
72 |
getXPathHandler().startAllNodeStep( Axis.DESCENDANT_OR_SELF ); |
510 |
72 |
getXPathHandler().endAllNodeStep(); |
511 |
|
|
512 |
72 |
match( TokenTypes.DOUBLE_SLASH ); |
513 |
6132 |
break; |
514 |
|
} |
515 |
|
} |
516 |
|
} |
517 |
|
else |
518 |
|
{ |
519 |
8970 |
return; |
520 |
|
} |
521 |
|
|
522 |
6132 |
switch ( LA(1) ) |
523 |
|
{ |
524 |
|
case TokenTypes.DOT: |
525 |
|
case TokenTypes.DOT_DOT: |
526 |
|
case TokenTypes.AT: |
527 |
|
case TokenTypes.IDENTIFIER: |
528 |
|
case TokenTypes.STAR: |
529 |
|
{ |
530 |
6108 |
step(); |
531 |
6012 |
break; |
532 |
|
} |
533 |
|
default: |
534 |
|
{ |
535 |
24 |
XPathSyntaxException ex = createSyntaxException( "Expected one of '.', '..', '@', '*', <QName>" ); |
536 |
24 |
throw ex; |
537 |
|
} |
538 |
|
} |
539 |
|
|
540 |
|
} while ( true ); |
541 |
|
} |
542 |
|
|
543 |
|
void step() throws SAXPathException |
544 |
|
{ |
545 |
15282 |
int axis = 0; |
546 |
|
|
547 |
15282 |
switch ( LA(1) ) |
548 |
|
{ |
549 |
|
case TokenTypes.DOT: |
550 |
|
case TokenTypes.DOT_DOT: |
551 |
|
{ |
552 |
648 |
abbrStep(); |
553 |
648 |
return; |
554 |
|
} |
555 |
|
case TokenTypes.AT: |
556 |
|
{ |
557 |
1308 |
axis = axisSpecifier(); |
558 |
1308 |
break; |
559 |
|
} |
560 |
|
case TokenTypes.IDENTIFIER: |
561 |
|
{ |
562 |
11916 |
if ( LA(2) == TokenTypes.DOUBLE_COLON ) |
563 |
|
{ |
564 |
2622 |
axis = axisSpecifier(); |
565 |
|
} |
566 |
|
else |
567 |
|
{ |
568 |
9294 |
axis = Axis.CHILD; |
569 |
|
} |
570 |
9294 |
break; |
571 |
|
} |
572 |
|
case TokenTypes.STAR: |
573 |
|
{ |
574 |
1410 |
axis = Axis.CHILD; |
575 |
|
break; |
576 |
|
} |
577 |
|
} |
578 |
|
|
579 |
14622 |
nodeTest( axis ); |
580 |
14502 |
} |
581 |
|
|
582 |
|
private int axisSpecifier() throws SAXPathException |
583 |
|
{ |
584 |
3930 |
int axis = 0; |
585 |
|
|
586 |
3930 |
switch ( LA(1) ) |
587 |
|
{ |
588 |
|
case TokenTypes.AT: |
589 |
|
{ |
590 |
1308 |
match( TokenTypes.AT ); |
591 |
1308 |
axis = Axis.ATTRIBUTE; |
592 |
1308 |
break; |
593 |
|
} |
594 |
|
case TokenTypes.IDENTIFIER: |
595 |
|
{ |
596 |
2622 |
Token token = LT( 1 ); |
597 |
|
|
598 |
2622 |
axis = Axis.lookup( token.getTokenText() ); |
599 |
|
|
600 |
2622 |
if ( axis == Axis.INVALID_AXIS ) |
601 |
|
{ |
602 |
12 |
throwInvalidAxis( token.getTokenText() ); |
603 |
|
} |
604 |
|
|
605 |
2610 |
match( TokenTypes.IDENTIFIER ); |
606 |
2610 |
match( TokenTypes.DOUBLE_COLON ); |
607 |
|
|
608 |
2610 |
break; |
609 |
|
} |
610 |
|
} |
611 |
|
|
612 |
3918 |
return axis; |
613 |
|
} |
614 |
|
|
615 |
|
private void nodeTest(int axis) throws SAXPathException |
616 |
|
{ |
617 |
14622 |
switch ( LA(1) ) |
618 |
|
{ |
619 |
|
case TokenTypes.IDENTIFIER: |
620 |
|
{ |
621 |
11976 |
switch ( LA(2) ) |
622 |
|
{ |
623 |
|
case TokenTypes.LEFT_PAREN: |
624 |
|
{ |
625 |
1206 |
nodeTypeTest( axis ); |
626 |
1194 |
break; |
627 |
|
} |
628 |
|
default: |
629 |
|
{ |
630 |
10770 |
nameTest( axis ); |
631 |
10710 |
break; |
632 |
|
} |
633 |
|
} |
634 |
|
break; |
635 |
|
} |
636 |
|
case TokenTypes.STAR: |
637 |
|
{ |
638 |
2598 |
nameTest( axis ); |
639 |
2598 |
break; |
640 |
|
} |
641 |
|
default: |
642 |
48 |
XPathSyntaxException ex = createSyntaxException("Expected <QName> or *"); |
643 |
48 |
throw ex; |
644 |
|
} |
645 |
14502 |
} |
646 |
|
|
647 |
|
private void nodeTypeTest(int axis) throws SAXPathException |
648 |
|
{ |
649 |
1206 |
Token nodeTypeToken = match( TokenTypes.IDENTIFIER ); |
650 |
1206 |
String nodeType = nodeTypeToken.getTokenText(); |
651 |
|
|
652 |
1206 |
match( TokenTypes.LEFT_PAREN ); |
653 |
|
|
654 |
1206 |
if ( "processing-instruction".equals( nodeType ) ) |
655 |
|
{ |
656 |
222 |
String piName = ""; |
657 |
|
|
658 |
222 |
if ( LA(1) == TokenTypes.LITERAL ) |
659 |
|
{ |
660 |
54 |
piName = match( TokenTypes.LITERAL ).getTokenText(); |
661 |
|
} |
662 |
|
|
663 |
222 |
match( TokenTypes.RIGHT_PAREN ); |
664 |
|
|
665 |
222 |
getXPathHandler().startProcessingInstructionNodeStep( axis, |
666 |
|
piName ); |
667 |
|
|
668 |
222 |
predicates(); |
669 |
|
|
670 |
222 |
getXPathHandler().endProcessingInstructionNodeStep(); |
671 |
|
} |
672 |
984 |
else if ( "node".equals( nodeType ) ) |
673 |
|
{ |
674 |
570 |
match( TokenTypes.RIGHT_PAREN ); |
675 |
|
|
676 |
570 |
getXPathHandler().startAllNodeStep( axis ); |
677 |
|
|
678 |
570 |
predicates(); |
679 |
|
|
680 |
570 |
getXPathHandler().endAllNodeStep(); |
681 |
|
} |
682 |
414 |
else if ( "text".equals( nodeType ) ) |
683 |
|
{ |
684 |
246 |
match( TokenTypes.RIGHT_PAREN ); |
685 |
|
|
686 |
246 |
getXPathHandler().startTextNodeStep( axis ); |
687 |
|
|
688 |
246 |
predicates(); |
689 |
|
|
690 |
246 |
getXPathHandler().endTextNodeStep(); |
691 |
|
} |
692 |
168 |
else if ( "comment".equals( nodeType ) ) |
693 |
|
{ |
694 |
156 |
match( TokenTypes.RIGHT_PAREN ); |
695 |
|
|
696 |
156 |
getXPathHandler().startCommentNodeStep( axis ); |
697 |
|
|
698 |
156 |
predicates(); |
699 |
|
|
700 |
156 |
getXPathHandler().endCommentNodeStep(); |
701 |
|
} |
702 |
|
else |
703 |
|
{ |
704 |
12 |
XPathSyntaxException ex = createSyntaxException( "Expected node-type" ); |
705 |
12 |
throw ex; |
706 |
|
} |
707 |
1194 |
} |
708 |
|
|
709 |
|
private void nameTest(int axis) throws SAXPathException |
710 |
|
{ |
711 |
13368 |
String prefix = null; |
712 |
13368 |
String localName = null; |
713 |
|
|
714 |
13368 |
switch ( LA(2) ) |
715 |
|
{ |
716 |
|
case TokenTypes.COLON: |
717 |
|
{ |
718 |
540 |
switch ( LA(1) ) |
719 |
|
{ |
720 |
|
case TokenTypes.IDENTIFIER: |
721 |
|
{ |
722 |
534 |
prefix = match( TokenTypes.IDENTIFIER ).getTokenText(); |
723 |
534 |
match( TokenTypes.COLON ); |
724 |
|
break; |
725 |
|
} |
726 |
|
} |
727 |
|
break; |
728 |
|
} |
729 |
|
} |
730 |
|
|
731 |
13368 |
switch ( LA(1) ) |
732 |
|
{ |
733 |
|
case TokenTypes.IDENTIFIER: |
734 |
|
{ |
735 |
10758 |
localName = match( TokenTypes.IDENTIFIER ).getTokenText(); |
736 |
10758 |
break; |
737 |
|
} |
738 |
|
case TokenTypes.STAR: |
739 |
|
{ |
740 |
2610 |
match( TokenTypes.STAR ); |
741 |
2610 |
localName = "*"; |
742 |
|
break; |
743 |
|
} |
744 |
|
} |
745 |
|
|
746 |
13368 |
if ( prefix == null ) |
747 |
|
{ |
748 |
12834 |
prefix = ""; |
749 |
|
} |
750 |
|
|
751 |
13368 |
getXPathHandler().startNameStep( axis, |
752 |
|
prefix, |
753 |
|
localName ); |
754 |
|
|
755 |
13368 |
predicates(); |
756 |
|
|
757 |
13308 |
getXPathHandler().endNameStep(); |
758 |
13308 |
} |
759 |
|
|
760 |
|
private void abbrStep() throws SAXPathException |
761 |
|
{ |
762 |
648 |
switch ( LA(1) ) |
763 |
|
{ |
764 |
|
case TokenTypes.DOT: |
765 |
|
{ |
766 |
450 |
match( TokenTypes.DOT ); |
767 |
450 |
getXPathHandler().startAllNodeStep( Axis.SELF ); |
768 |
450 |
predicates(); |
769 |
450 |
getXPathHandler().endAllNodeStep(); |
770 |
450 |
break; |
771 |
|
} |
772 |
|
case TokenTypes.DOT_DOT: |
773 |
|
{ |
774 |
198 |
match( TokenTypes.DOT_DOT ); |
775 |
198 |
getXPathHandler().startAllNodeStep( Axis.PARENT ); |
776 |
198 |
predicates(); |
777 |
198 |
getXPathHandler().endAllNodeStep(); |
778 |
|
break; |
779 |
|
} |
780 |
|
} |
781 |
648 |
} |
782 |
|
|
783 |
|
private void predicates() throws SAXPathException |
784 |
|
{ |
785 |
|
while (true ) |
786 |
|
{ |
787 |
31074 |
if ( LA(1) == TokenTypes.LEFT_BRACKET ) |
788 |
|
{ |
789 |
2400 |
predicate(); |
790 |
|
} |
791 |
|
else |
792 |
|
{ |
793 |
|
break; |
794 |
|
} |
795 |
|
} |
796 |
28674 |
} |
797 |
|
|
798 |
|
void predicate() throws SAXPathException |
799 |
|
{ |
800 |
2400 |
getXPathHandler().startPredicate(); |
801 |
|
|
802 |
2400 |
match( TokenTypes.LEFT_BRACKET ); |
803 |
|
|
804 |
2400 |
predicateExpr(); |
805 |
|
|
806 |
2394 |
match( TokenTypes.RIGHT_BRACKET ); |
807 |
|
|
808 |
2340 |
getXPathHandler().endPredicate(); |
809 |
2340 |
} |
810 |
|
|
811 |
|
private void predicateExpr() throws SAXPathException |
812 |
|
{ |
813 |
2400 |
expr(); |
814 |
2394 |
} |
815 |
|
|
816 |
|
private void expr() throws SAXPathException |
817 |
|
{ |
818 |
19398 |
orExpr(); |
819 |
19110 |
} |
820 |
|
|
821 |
|
private void orExpr() throws SAXPathException |
822 |
|
{ |
823 |
19428 |
getXPathHandler().startOrExpr(); |
824 |
|
|
825 |
19428 |
andExpr(); |
826 |
|
|
827 |
19140 |
boolean create = false; |
828 |
|
|
829 |
19140 |
switch ( LA(1) ) |
830 |
|
{ |
831 |
|
case TokenTypes.OR: |
832 |
|
{ |
833 |
30 |
create = true; |
834 |
30 |
match( TokenTypes.OR ); |
835 |
30 |
orExpr(); |
836 |
|
break; |
837 |
|
} |
838 |
|
} |
839 |
|
|
840 |
19140 |
getXPathHandler().endOrExpr( create ); |
841 |
19140 |
} |
842 |
|
|
843 |
|
private void andExpr() throws SAXPathException |
844 |
|
{ |
845 |
19836 |
getXPathHandler().startAndExpr(); |
846 |
|
|
847 |
19836 |
equalityExpr(); |
848 |
|
|
849 |
19548 |
boolean create = false; |
850 |
|
|
851 |
19548 |
switch ( LA(1) ) |
852 |
|
{ |
853 |
|
case TokenTypes.AND: |
854 |
|
{ |
855 |
408 |
create = true; |
856 |
408 |
match( TokenTypes.AND ); |
857 |
408 |
andExpr(); |
858 |
|
break; |
859 |
|
} |
860 |
|
} |
861 |
|
|
862 |
19542 |
getXPathHandler().endAndExpr( create ); |
863 |
19542 |
} |
864 |
|
|
865 |
|
private void equalityExpr() throws SAXPathException |
866 |
|
{ |
867 |
19836 |
relationalExpr(); |
868 |
|
|
869 |
19548 |
int la = LA(1); |
870 |
21486 |
while (la == TokenTypes.EQUALS || la == TokenTypes.NOT_EQUALS) |
871 |
|
{ |
872 |
1938 |
switch ( la ) |
873 |
|
{ |
874 |
|
case TokenTypes.EQUALS: |
875 |
|
{ |
876 |
1722 |
match( TokenTypes.EQUALS ); |
877 |
1722 |
getXPathHandler().startEqualityExpr(); |
878 |
1722 |
relationalExpr(); |
879 |
1722 |
getXPathHandler().endEqualityExpr( Operator.EQUALS ); |
880 |
1722 |
break; |
881 |
|
} |
882 |
|
case TokenTypes.NOT_EQUALS: |
883 |
|
{ |
884 |
216 |
match( TokenTypes.NOT_EQUALS ); |
885 |
216 |
getXPathHandler().startEqualityExpr(); |
886 |
216 |
relationalExpr(); |
887 |
216 |
getXPathHandler().endEqualityExpr( Operator.NOT_EQUALS ); |
888 |
|
break; |
889 |
|
} |
890 |
|
} |
891 |
1938 |
la = LA(1); |
892 |
|
} |
893 |
19548 |
} |
894 |
|
|
895 |
|
private void relationalExpr() throws SAXPathException |
896 |
|
{ |
897 |
|
|
898 |
21774 |
additiveExpr(); |
899 |
|
|
900 |
21486 |
int la = LA(1); |
901 |
|
|
902 |
|
|
903 |
|
|
904 |
|
|
905 |
|
while (la == TokenTypes.LESS_THAN_SIGN |
906 |
|
|| la == TokenTypes.GREATER_THAN_SIGN |
907 |
|
|| la == TokenTypes.LESS_THAN_OR_EQUALS_SIGN |
908 |
22092 |
|| la == TokenTypes.GREATER_THAN_OR_EQUALS_SIGN ) { |
909 |
606 |
switch ( la ) |
910 |
|
{ |
911 |
|
case TokenTypes.LESS_THAN_SIGN: |
912 |
|
{ |
913 |
150 |
match( TokenTypes.LESS_THAN_SIGN ); |
914 |
150 |
getXPathHandler().startRelationalExpr(); |
915 |
150 |
additiveExpr(); |
916 |
150 |
getXPathHandler().endRelationalExpr( Operator.LESS_THAN ); |
917 |
150 |
break; |
918 |
|
} |
919 |
|
case TokenTypes.GREATER_THAN_SIGN: |
920 |
|
{ |
921 |
204 |
match( TokenTypes.GREATER_THAN_SIGN ); |
922 |
204 |
getXPathHandler().startRelationalExpr(); |
923 |
204 |
additiveExpr(); |
924 |
204 |
getXPathHandler().endRelationalExpr( Operator.GREATER_THAN ); |
925 |
204 |
break; |
926 |
|
} |
927 |
|
case TokenTypes.GREATER_THAN_OR_EQUALS_SIGN: |
928 |
|
{ |
929 |
156 |
match( TokenTypes.GREATER_THAN_OR_EQUALS_SIGN ); |
930 |
156 |
getXPathHandler().startRelationalExpr(); |
931 |
156 |
additiveExpr(); |
932 |
156 |
getXPathHandler().endRelationalExpr( Operator.GREATER_THAN_EQUALS ); |
933 |
156 |
break; |
934 |
|
} |
935 |
|
case TokenTypes.LESS_THAN_OR_EQUALS_SIGN: |
936 |
|
{ |
937 |
96 |
match( TokenTypes.LESS_THAN_OR_EQUALS_SIGN ); |
938 |
96 |
getXPathHandler().startRelationalExpr(); |
939 |
96 |
additiveExpr(); |
940 |
96 |
getXPathHandler().endRelationalExpr( Operator.LESS_THAN_EQUALS ); |
941 |
|
break; |
942 |
|
} |
943 |
|
} |
944 |
606 |
la = LA(1); |
945 |
|
} |
946 |
21486 |
} |
947 |
|
|
948 |
|
|
949 |
|
private void additiveExpr() throws SAXPathException |
950 |
|
{ |
951 |
22380 |
multiplicativeExpr(); |
952 |
|
|
953 |
22098 |
int la = LA(1); |
954 |
22746 |
while (la == TokenTypes.PLUS || la == TokenTypes.MINUS) |
955 |
|
{ |
956 |
654 |
switch ( la ) |
957 |
|
{ |
958 |
|
case TokenTypes.PLUS: |
959 |
|
{ |
960 |
438 |
match( TokenTypes.PLUS ); |
961 |
438 |
getXPathHandler().startAdditiveExpr(); |
962 |
438 |
multiplicativeExpr(); |
963 |
432 |
getXPathHandler().endAdditiveExpr( Operator.ADD ); |
964 |
432 |
break; |
965 |
|
} |
966 |
|
case TokenTypes.MINUS: |
967 |
|
{ |
968 |
216 |
match( TokenTypes.MINUS ); |
969 |
216 |
getXPathHandler().startAdditiveExpr(); |
970 |
216 |
multiplicativeExpr(); |
971 |
216 |
getXPathHandler().endAdditiveExpr( Operator.SUBTRACT ); |
972 |
|
break; |
973 |
|
} |
974 |
|
} |
975 |
648 |
la = LA(1); |
976 |
|
} |
977 |
22092 |
} |
978 |
|
|
979 |
|
private void multiplicativeExpr() throws SAXPathException |
980 |
|
{ |
981 |
23034 |
unaryExpr(); |
982 |
|
|
983 |
22746 |
int la = LA(1); |
984 |
23256 |
while (la == TokenTypes.STAR || la == TokenTypes.DIV || la == TokenTypes.MOD) |
985 |
|
{ |
986 |
510 |
switch ( la ) |
987 |
|
{ |
988 |
|
case TokenTypes.STAR: |
989 |
|
{ |
990 |
150 |
match( TokenTypes.STAR ); |
991 |
150 |
getXPathHandler().startMultiplicativeExpr(); |
992 |
150 |
unaryExpr(); |
993 |
150 |
getXPathHandler().endMultiplicativeExpr( Operator.MULTIPLY ); |
994 |
150 |
break; |
995 |
|
} |
996 |
|
case TokenTypes.DIV: |
997 |
|
{ |
998 |
294 |
match( TokenTypes.DIV ); |
999 |
294 |
getXPathHandler().startMultiplicativeExpr(); |
1000 |
294 |
unaryExpr(); |
1001 |
294 |
getXPathHandler().endMultiplicativeExpr( Operator.DIV ); |
1002 |
294 |
break; |
1003 |
|
} |
1004 |
|
case TokenTypes.MOD: |
1005 |
|
{ |
1006 |
66 |
match( TokenTypes.MOD ); |
1007 |
66 |
getXPathHandler().startMultiplicativeExpr(); |
1008 |
66 |
unaryExpr(); |
1009 |
66 |
getXPathHandler().endMultiplicativeExpr( Operator.MOD ); |
1010 |
|
break; |
1011 |
|
} |
1012 |
|
} |
1013 |
510 |
la = LA(1); |
1014 |
|
} |
1015 |
|
|
1016 |
22746 |
} |
1017 |
|
|
1018 |
|
private void unaryExpr() throws SAXPathException |
1019 |
|
{ |
1020 |
23784 |
switch ( LA(1) ) |
1021 |
|
{ |
1022 |
|
case TokenTypes.MINUS: |
1023 |
|
{ |
1024 |
240 |
getXPathHandler().startUnaryExpr(); |
1025 |
240 |
match( TokenTypes.MINUS ); |
1026 |
240 |
unaryExpr(); |
1027 |
240 |
getXPathHandler().endUnaryExpr( Operator.NEGATIVE ); |
1028 |
240 |
break; |
1029 |
|
} |
1030 |
|
default: |
1031 |
|
{ |
1032 |
23544 |
unionExpr(); |
1033 |
|
break; |
1034 |
|
} |
1035 |
|
} |
1036 |
|
|
1037 |
|
|
1038 |
23496 |
} |
1039 |
|
|
1040 |
|
private void unionExpr() throws SAXPathException |
1041 |
|
{ |
1042 |
23544 |
getXPathHandler().startUnionExpr(); |
1043 |
|
|
1044 |
23544 |
pathExpr(); |
1045 |
|
|
1046 |
23256 |
boolean create = false; |
1047 |
|
|
1048 |
23256 |
switch ( LA(1) ) |
1049 |
|
{ |
1050 |
|
case TokenTypes.PIPE: |
1051 |
|
{ |
1052 |
120 |
match( TokenTypes.PIPE ); |
1053 |
120 |
create = true; |
1054 |
120 |
expr(); |
1055 |
|
break; |
1056 |
|
} |
1057 |
|
} |
1058 |
|
|
1059 |
23256 |
getXPathHandler().endUnionExpr( create ); |
1060 |
23256 |
} |
1061 |
|
|
1062 |
|
private Token match(int tokenType) throws XPathSyntaxException |
1063 |
|
{ |
1064 |
72162 |
LT(1); |
1065 |
|
|
1066 |
72162 |
Token token = (Token) tokens.get( 0 ); |
1067 |
|
|
1068 |
72162 |
if ( token.getTokenType() == tokenType ) |
1069 |
|
{ |
1070 |
72078 |
tokens.removeFirst(); |
1071 |
72078 |
return token; |
1072 |
|
} |
1073 |
|
|
1074 |
|
|
1075 |
84 |
XPathSyntaxException ex = createSyntaxException( "Expected: " + TokenTypes.getTokenText( tokenType ) ); |
1076 |
84 |
throw ex; |
1077 |
|
} |
1078 |
|
|
1079 |
|
private int LA(int position) |
1080 |
|
{ |
1081 |
464820 |
return LT(position).getTokenType(); |
1082 |
|
} |
1083 |
|
|
1084 |
|
private Token LT(int position) |
1085 |
|
{ |
1086 |
544710 |
if ( tokens.size() <= ( position - 1 ) ) |
1087 |
|
{ |
1088 |
151062 |
for ( int i = 0 ; i < position ; ++i ) |
1089 |
|
{ |
1090 |
86538 |
tokens.add( lexer.nextToken() ); |
1091 |
|
} |
1092 |
|
} |
1093 |
|
|
1094 |
544710 |
return (Token) tokens.get( position - 1 ); |
1095 |
|
} |
1096 |
|
|
1097 |
|
private boolean isNodeTypeName(Token name) |
1098 |
|
{ |
1099 |
4710 |
String text = name.getTokenText(); |
1100 |
|
|
1101 |
4710 |
if ( "node".equals( text ) |
1102 |
|
|| |
1103 |
|
"comment".equals( text ) |
1104 |
|
|| |
1105 |
|
"text".equals( text ) |
1106 |
|
|| |
1107 |
|
"processing-instruction".equals( text ) ) |
1108 |
|
{ |
1109 |
84 |
return true; |
1110 |
|
} |
1111 |
|
|
1112 |
4626 |
return false; |
1113 |
|
} |
1114 |
|
|
1115 |
|
private XPathSyntaxException createSyntaxException(String message) |
1116 |
|
{ |
1117 |
300 |
String xpath = this.lexer.getXPath(); |
1118 |
300 |
int position = LT(1).getTokenBegin(); |
1119 |
|
|
1120 |
300 |
return new XPathSyntaxException( xpath, |
1121 |
|
position, |
1122 |
|
message ); |
1123 |
|
} |
1124 |
|
|
1125 |
|
private void throwInvalidAxis(String invalidAxis) throws SAXPathException |
1126 |
|
{ |
1127 |
12 |
String xpath = this.lexer.getXPath(); |
1128 |
12 |
int position = LT(1).getTokenBegin(); |
1129 |
|
|
1130 |
12 |
String message = "Expected valid axis name instead of [" + invalidAxis + "]"; |
1131 |
|
|
1132 |
12 |
throw new XPathSyntaxException( xpath, |
1133 |
|
position, |
1134 |
|
message ); |
1135 |
|
} |
1136 |
|
} |