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package org.jaxen; |
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import java.util.Iterator; |
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import java.util.LinkedList; |
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import org.jaxen.expr.DefaultXPathFactory; |
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import org.jaxen.expr.Expr; |
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import org.jaxen.expr.FilterExpr; |
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import org.jaxen.expr.FunctionCallExpr; |
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import org.jaxen.expr.LocationPath; |
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import org.jaxen.expr.Predicate; |
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import org.jaxen.expr.Predicated; |
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import org.jaxen.expr.Step; |
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import org.jaxen.expr.XPathExpr; |
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import org.jaxen.expr.XPathFactory; |
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import org.jaxen.saxpath.Operator; |
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import org.jaxen.saxpath.XPathHandler; |
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public class JaxenHandler implements XPathHandler |
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{ |
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private XPathFactory xpathFactory; |
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private XPathExpr xpath; |
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protected boolean simplified; |
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protected LinkedList stack; |
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public JaxenHandler() |
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10722 |
{ |
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10722 |
this.stack = new LinkedList(); |
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10722 |
this.xpathFactory = new DefaultXPathFactory(); |
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10722 |
} |
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public void setXPathFactory(XPathFactory xpathFactory) |
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{ |
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150 |
this.xpathFactory = xpathFactory; |
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150 |
} |
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public XPathFactory getXPathFactory() |
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{ |
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93258 |
return this.xpathFactory; |
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} |
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public XPathExpr getXPathExpr() |
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{ |
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10716 |
return getXPathExpr( true ); |
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} |
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public XPathExpr getXPathExpr(boolean shouldSimplify) |
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{ |
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10938 |
if ( shouldSimplify && ! this.simplified ) |
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{ |
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10716 |
this.xpath.simplify(); |
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10716 |
this.simplified = true; |
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} |
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10938 |
return this.xpath; |
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} |
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public void startXPath() throws JaxenException |
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{ |
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10962 |
this.simplified = false; |
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10962 |
pushFrame(); |
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10962 |
} |
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public void endXPath() throws JaxenException |
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{ |
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10764 |
this.xpath = getXPathFactory().createXPath( (Expr) pop() ); |
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10764 |
popFrame(); |
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10764 |
} |
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public void startPathExpr() throws JaxenException |
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{ |
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23316 |
pushFrame(); |
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23316 |
} |
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public void endPathExpr() throws JaxenException |
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{ |
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FilterExpr filterExpr; |
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LocationPath locationPath; |
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Object popped; |
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23094 |
if ( stackSize() == 2 ) |
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{ |
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162 |
locationPath = (LocationPath) pop(); |
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162 |
filterExpr = (FilterExpr) pop(); |
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} |
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else |
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{ |
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22932 |
popped = pop(); |
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|
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22932 |
if ( popped instanceof LocationPath ) |
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{ |
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9660 |
locationPath = (LocationPath) popped; |
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9660 |
filterExpr = null; |
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} |
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else |
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{ |
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13272 |
locationPath = null; |
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13272 |
filterExpr = (FilterExpr) popped; |
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} |
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} |
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23094 |
popFrame(); |
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23094 |
push( getXPathFactory().createPathExpr( filterExpr, |
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locationPath ) ); |
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23094 |
} |
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public void startAbsoluteLocationPath() throws JaxenException |
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{ |
| 232 |
6036 |
pushFrame(); |
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6036 |
push( getXPathFactory().createAbsoluteLocationPath() ); |
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6036 |
} |
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public void endAbsoluteLocationPath() throws JaxenException |
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{ |
| 239 |
5904 |
endLocationPath(); |
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5904 |
} |
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public void startRelativeLocationPath() throws JaxenException |
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{ |
| 244 |
3930 |
pushFrame(); |
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|
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3930 |
push( getXPathFactory().createRelativeLocationPath() ); |
| 247 |
3930 |
} |
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public void endRelativeLocationPath() throws JaxenException |
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{ |
| 251 |
3918 |
endLocationPath(); |
| 252 |
3918 |
} |
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protected void endLocationPath() throws JaxenException |
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{ |
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9822 |
LocationPath path = (LocationPath) peekFrame().removeFirst(); |
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9822 |
addSteps( path, |
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popFrame().iterator() ); |
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9822 |
push( path ); |
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9822 |
} |
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protected void addSteps(LocationPath locationPath, |
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Iterator stepIter) |
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{ |
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25686 |
while ( stepIter.hasNext() ) |
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{ |
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15864 |
locationPath.addStep( (Step) stepIter.next() ); |
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} |
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9822 |
} |
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public void startNameStep(int axis, |
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String prefix, |
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String localName) throws JaxenException |
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{ |
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13158 |
pushFrame(); |
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13158 |
push( getXPathFactory().createNameStep( axis, |
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prefix, |
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localName ) ); |
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13158 |
} |
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public void endNameStep() throws JaxenException |
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{ |
| 286 |
13110 |
endStep(); |
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13110 |
} |
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public void startTextNodeStep(int axis) throws JaxenException |
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{ |
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240 |
pushFrame(); |
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240 |
push( getXPathFactory().createTextNodeStep( axis ) ); |
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240 |
} |
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public void endTextNodeStep() throws JaxenException |
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{ |
| 299 |
240 |
endStep(); |
| 300 |
240 |
} |
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public void startCommentNodeStep(int axis) throws JaxenException |
| 303 |
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{ |
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150 |
pushFrame(); |
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| 306 |
150 |
push( getXPathFactory().createCommentNodeStep( axis ) ); |
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150 |
} |
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public void endCommentNodeStep() throws JaxenException |
| 310 |
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{ |
| 311 |
150 |
endStep(); |
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150 |
} |
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public void startAllNodeStep(int axis) throws JaxenException |
| 315 |
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{ |
| 316 |
2268 |
pushFrame(); |
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| 318 |
2268 |
push( getXPathFactory().createAllNodeStep( axis ) ); |
| 319 |
2268 |
} |
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| 321 |
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public void endAllNodeStep() throws JaxenException |
| 322 |
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{ |
| 323 |
2268 |
endStep(); |
| 324 |
2268 |
} |
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public void startProcessingInstructionNodeStep(int axis, |
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String name) throws JaxenException |
| 328 |
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{ |
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210 |
pushFrame(); |
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210 |
push( getXPathFactory().createProcessingInstructionNodeStep( axis, |
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name ) ); |
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210 |
} |
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public void endProcessingInstructionNodeStep() throws JaxenException |
| 336 |
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{ |
| 337 |
210 |
endStep(); |
| 338 |
210 |
} |
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protected void endStep() |
| 341 |
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{ |
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15978 |
Step step = (Step) peekFrame().removeFirst(); |
| 343 |
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| 344 |
15978 |
addPredicates( step, |
| 345 |
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popFrame().iterator() ); |
| 346 |
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| 347 |
15978 |
push( step ); |
| 348 |
15978 |
} |
| 349 |
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| 350 |
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public void startPredicate() throws JaxenException |
| 351 |
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{ |
| 352 |
2364 |
pushFrame(); |
| 353 |
2364 |
} |
| 354 |
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| 355 |
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public void endPredicate() throws JaxenException |
| 356 |
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{ |
| 357 |
2316 |
Predicate predicate = getXPathFactory().createPredicate( (Expr) pop() ); |
| 358 |
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|
| 359 |
2316 |
popFrame(); |
| 360 |
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| 361 |
2316 |
push( predicate ); |
| 362 |
2316 |
} |
| 363 |
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| 364 |
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public void startFilterExpr() throws JaxenException |
| 365 |
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{ |
| 366 |
13494 |
pushFrame(); |
| 367 |
13494 |
} |
| 368 |
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| 369 |
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public void endFilterExpr() throws JaxenException |
| 370 |
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{ |
| 371 |
13446 |
Expr expr = (Expr) peekFrame().removeFirst(); |
| 372 |
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| 373 |
13446 |
FilterExpr filter = getXPathFactory().createFilterExpr( expr ); |
| 374 |
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| 375 |
13446 |
Iterator predIter = popFrame().iterator(); |
| 376 |
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|
| 377 |
13446 |
addPredicates( filter, |
| 378 |
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predIter ); |
| 379 |
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|
| 380 |
13446 |
push( filter ); |
| 381 |
13446 |
} |
| 382 |
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|
| 383 |
|
protected void addPredicates(Predicated obj, |
| 384 |
|
Iterator predIter) |
| 385 |
|
{ |
| 386 |
31740 |
while ( predIter.hasNext() ) |
| 387 |
|
{ |
| 388 |
2316 |
obj.addPredicate( (Predicate) predIter.next() ); |
| 389 |
|
} |
| 390 |
29424 |
} |
| 391 |
|
|
| 392 |
|
protected void returnExpr() |
| 393 |
|
{ |
| 394 |
0 |
Expr expr = (Expr) pop(); |
| 395 |
0 |
popFrame(); |
| 396 |
0 |
push( expr ); |
| 397 |
0 |
} |
| 398 |
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|
| 399 |
|
public void startOrExpr() throws JaxenException |
| 400 |
|
{ |
| 401 |
19260 |
} |
| 402 |
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|
| 403 |
|
public void endOrExpr(boolean create) throws JaxenException |
| 404 |
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{ |
| 405 |
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|
| 406 |
19038 |
if ( create ) |
| 407 |
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{ |
| 408 |
30 |
Expr rhs = (Expr) pop(); |
| 409 |
30 |
Expr lhs = (Expr) pop(); |
| 410 |
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|
| 411 |
30 |
push( getXPathFactory().createOrExpr( lhs, |
| 412 |
|
rhs ) ); |
| 413 |
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} |
| 414 |
19038 |
} |
| 415 |
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|
| 416 |
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public void startAndExpr() throws JaxenException |
| 417 |
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{ |
| 418 |
19650 |
} |
| 419 |
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|
| 420 |
|
public void endAndExpr(boolean create) throws JaxenException |
| 421 |
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{ |
| 422 |
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|
| 423 |
19428 |
if ( create ) |
| 424 |
|
{ |
| 425 |
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|
| 426 |
390 |
Expr rhs = (Expr) pop(); |
| 427 |
390 |
Expr lhs = (Expr) pop(); |
| 428 |
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|
| 429 |
390 |
push( getXPathFactory().createAndExpr( lhs, |
| 430 |
|
rhs ) ); |
| 431 |
|
} |
| 432 |
19428 |
} |
| 433 |
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|
| 434 |
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public void startEqualityExpr() throws JaxenException |
| 435 |
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{ |
| 436 |
1902 |
} |
| 437 |
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|
| 438 |
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public void endEqualityExpr(int operator) throws JaxenException |
| 439 |
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{ |
| 440 |
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|
| 441 |
1902 |
if ( operator != Operator.NO_OP ) |
| 442 |
|
{ |
| 443 |
|
|
| 444 |
1902 |
Expr rhs = (Expr) pop(); |
| 445 |
1902 |
Expr lhs = (Expr) pop(); |
| 446 |
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|
| 447 |
1902 |
push( getXPathFactory().createEqualityExpr( lhs, |
| 448 |
|
rhs, |
| 449 |
|
operator ) ); |
| 450 |
|
} |
| 451 |
1902 |
} |
| 452 |
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|
| 453 |
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public void startRelationalExpr() throws JaxenException |
| 454 |
|
{ |
| 455 |
600 |
} |
| 456 |
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|
| 457 |
|
public void endRelationalExpr(int operator) throws JaxenException |
| 458 |
|
{ |
| 459 |
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|
| 460 |
600 |
if ( operator != Operator.NO_OP ) |
| 461 |
|
{ |
| 462 |
|
|
| 463 |
600 |
Expr rhs = (Expr) pop(); |
| 464 |
600 |
Expr lhs = (Expr) pop(); |
| 465 |
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|
| 466 |
600 |
push( getXPathFactory().createRelationalExpr( lhs, |
| 467 |
|
rhs, |
| 468 |
|
operator ) ); |
| 469 |
|
} |
| 470 |
600 |
} |
| 471 |
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|
| 472 |
|
public void startAdditiveExpr() throws JaxenException |
| 473 |
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{ |
| 474 |
654 |
} |
| 475 |
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|
| 476 |
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public void endAdditiveExpr(int operator) throws JaxenException |
| 477 |
|
{ |
| 478 |
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|
| 479 |
648 |
if ( operator != Operator.NO_OP ) |
| 480 |
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{ |
| 481 |
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|
| 482 |
648 |
Expr rhs = (Expr) pop(); |
| 483 |
648 |
Expr lhs = (Expr) pop(); |
| 484 |
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|
| 485 |
648 |
push( getXPathFactory().createAdditiveExpr( lhs, |
| 486 |
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rhs, |
| 487 |
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operator ) ); |
| 488 |
|
} |
| 489 |
648 |
} |
| 490 |
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|
| 491 |
|
public void startMultiplicativeExpr() throws JaxenException |
| 492 |
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{ |
| 493 |
510 |
} |
| 494 |
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|
| 495 |
|
public void endMultiplicativeExpr(int operator) throws JaxenException |
| 496 |
|
{ |
| 497 |
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|
| 498 |
510 |
if ( operator != Operator.NO_OP ) |
| 499 |
|
{ |
| 500 |
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|
| 501 |
510 |
Expr rhs = (Expr) pop(); |
| 502 |
510 |
Expr lhs = (Expr) pop(); |
| 503 |
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|
| 504 |
510 |
push( getXPathFactory().createMultiplicativeExpr( lhs, |
| 505 |
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rhs, |
| 506 |
|
operator ) ); |
| 507 |
|
} |
| 508 |
510 |
} |
| 509 |
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|
| 510 |
|
public void startUnaryExpr() throws JaxenException |
| 511 |
|
{ |
| 512 |
240 |
} |
| 513 |
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|
| 514 |
|
public void endUnaryExpr(int operator) throws JaxenException |
| 515 |
|
{ |
| 516 |
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|
| 517 |
240 |
if ( operator != Operator.NO_OP ) |
| 518 |
|
{ |
| 519 |
240 |
push( getXPathFactory().createUnaryExpr( (Expr) pop(), |
| 520 |
|
operator ) ); |
| 521 |
|
} |
| 522 |
240 |
} |
| 523 |
|
|
| 524 |
|
public void startUnionExpr() throws JaxenException |
| 525 |
|
{ |
| 526 |
23316 |
} |
| 527 |
|
|
| 528 |
|
public void endUnionExpr(boolean create) throws JaxenException |
| 529 |
|
{ |
| 530 |
|
|
| 531 |
23094 |
if ( create ) |
| 532 |
|
{ |
| 533 |
|
|
| 534 |
120 |
Expr rhs = (Expr) pop(); |
| 535 |
120 |
Expr lhs = (Expr) pop(); |
| 536 |
|
|
| 537 |
120 |
push( getXPathFactory().createUnionExpr( lhs, |
| 538 |
|
rhs ) ); |
| 539 |
|
} |
| 540 |
23094 |
} |
| 541 |
|
|
| 542 |
|
public void number(int number) throws JaxenException |
| 543 |
|
{ |
| 544 |
4266 |
push( getXPathFactory().createNumberExpr( number ) ); |
| 545 |
4266 |
} |
| 546 |
|
|
| 547 |
|
public void number(double number) throws JaxenException |
| 548 |
|
{ |
| 549 |
276 |
push( getXPathFactory().createNumberExpr( number ) ); |
| 550 |
276 |
} |
| 551 |
|
|
| 552 |
|
public void literal(String literal) throws JaxenException |
| 553 |
|
{ |
| 554 |
3906 |
push( getXPathFactory().createLiteralExpr( literal ) ); |
| 555 |
3906 |
} |
| 556 |
|
|
| 557 |
|
public void variableReference(String prefix, |
| 558 |
|
String variableName) throws JaxenException |
| 559 |
|
{ |
| 560 |
126 |
push( getXPathFactory().createVariableReferenceExpr( prefix, |
| 561 |
|
variableName ) ); |
| 562 |
126 |
} |
| 563 |
|
|
| 564 |
|
public void startFunction(String prefix, |
| 565 |
|
String functionName) throws JaxenException |
| 566 |
|
{ |
| 567 |
4632 |
pushFrame(); |
| 568 |
4632 |
push( getXPathFactory().createFunctionCallExpr( prefix, |
| 569 |
|
functionName ) ); |
| 570 |
4632 |
} |
| 571 |
|
|
| 572 |
|
public void endFunction() throws JaxenException |
| 573 |
|
{ |
| 574 |
4608 |
FunctionCallExpr function = (FunctionCallExpr) peekFrame().removeFirst(); |
| 575 |
|
|
| 576 |
4608 |
addParameters( function, |
| 577 |
|
popFrame().iterator() ); |
| 578 |
|
|
| 579 |
4608 |
push( function ); |
| 580 |
4608 |
} |
| 581 |
|
|
| 582 |
|
protected void addParameters(FunctionCallExpr function, |
| 583 |
|
Iterator paramIter) |
| 584 |
|
{ |
| 585 |
10080 |
while ( paramIter.hasNext() ) |
| 586 |
|
{ |
| 587 |
5472 |
function.addParameter( (Expr) paramIter.next() ); |
| 588 |
|
} |
| 589 |
4608 |
} |
| 590 |
|
|
| 591 |
|
protected int stackSize() |
| 592 |
|
{ |
| 593 |
23094 |
return peekFrame().size(); |
| 594 |
|
} |
| 595 |
|
|
| 596 |
|
protected void push(Object obj) |
| 597 |
|
{ |
| 598 |
112902 |
peekFrame().addLast( obj ); |
| 599 |
112902 |
} |
| 600 |
|
|
| 601 |
|
protected Object pop() |
| 602 |
|
{ |
| 603 |
44976 |
return peekFrame().removeLast(); |
| 604 |
|
} |
| 605 |
|
|
| 606 |
|
protected boolean canPop() |
| 607 |
|
{ |
| 608 |
0 |
return ( peekFrame().size() > 0 ); |
| 609 |
|
} |
| 610 |
|
|
| 611 |
|
protected void pushFrame() |
| 612 |
|
{ |
| 613 |
80760 |
this.stack.addLast( new LinkedList() ); |
| 614 |
80760 |
} |
| 615 |
|
|
| 616 |
|
protected LinkedList popFrame() |
| 617 |
|
{ |
| 618 |
80028 |
return (LinkedList) this.stack.removeLast(); |
| 619 |
|
} |
| 620 |
|
|
| 621 |
|
protected LinkedList peekFrame() |
| 622 |
|
{ |
| 623 |
224826 |
return (LinkedList) this.stack.getLast(); |
| 624 |
|
} |
| 625 |
|
} |