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package org.jaxen.saxpath.base; |
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import java.util.LinkedList; |
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import org.jaxen.saxpath.Axis; |
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import org.jaxen.saxpath.Operator; |
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import org.jaxen.saxpath.SAXPathException; |
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import org.jaxen.saxpath.XPathHandler; |
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import org.jaxen.saxpath.XPathSyntaxException; |
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import org.jaxen.saxpath.helpers.DefaultXPathHandler; |
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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(); |
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public XPathReader() |
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10896 |
{ |
| 94 |
10896 |
setXPathHandler( defaultHandler ); |
| 95 |
10896 |
} |
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|
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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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} |
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public void parse(String xpath) throws SAXPathException |
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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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10818 |
getXPathHandler().endXPath(); |
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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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} |
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| 123 |
10764 |
lexer = null; |
| 124 |
10764 |
tokens = null; |
| 125 |
10764 |
} |
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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 |
} |
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private void pathExpr() throws SAXPathException |
| 134 |
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{ |
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23544 |
getXPathHandler().startPathExpr(); |
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23544 |
switch ( LA(1) ) |
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{ |
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case TokenTypes.INTEGER: |
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case TokenTypes.DOUBLE: |
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case TokenTypes.LITERAL: |
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{ |
| 143 |
8502 |
filterExpr(); |
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8502 |
if ( LA(1) == TokenTypes.SLASH || LA(1) == TokenTypes.DOUBLE_SLASH ) |
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{ |
| 147 |
6 |
XPathSyntaxException ex = createSyntaxException("Node-set expected"); |
| 148 |
6 |
throw ex; |
| 149 |
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} |
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break; |
| 152 |
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} |
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case TokenTypes.LEFT_PAREN: |
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case TokenTypes.DOLLAR: |
| 155 |
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{ |
| 156 |
444 |
filterExpr(); |
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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 |
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} |
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break; |
| 163 |
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} |
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case TokenTypes.IDENTIFIER: |
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{ |
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6852 |
if ( ( LA(2) == TokenTypes.LEFT_PAREN |
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&& |
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! isNodeTypeName( LT(1) ) ) |
| 170 |
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|| |
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( LA(2) == TokenTypes.COLON |
| 172 |
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&& |
| 173 |
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LA(4) == TokenTypes.LEFT_PAREN) ) |
| 174 |
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{ |
| 175 |
4632 |
filterExpr(); |
| 176 |
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| 177 |
4608 |
if ( LA(1) == TokenTypes.SLASH || LA(1) == TokenTypes.DOUBLE_SLASH) |
| 178 |
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{ |
| 179 |
156 |
locationPath( false ); |
| 180 |
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} |
| 181 |
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} |
| 182 |
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else |
| 183 |
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{ |
| 184 |
2220 |
locationPath( false ); |
| 185 |
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} |
| 186 |
2184 |
break; |
| 187 |
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} |
| 188 |
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case TokenTypes.DOT: |
| 189 |
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case TokenTypes.DOT_DOT: |
| 190 |
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case TokenTypes.STAR: |
| 191 |
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case TokenTypes.AT: |
| 192 |
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{ |
| 193 |
1638 |
locationPath( false ); |
| 194 |
1638 |
break; |
| 195 |
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} |
| 196 |
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case TokenTypes.SLASH: |
| 197 |
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case TokenTypes.DOUBLE_SLASH: |
| 198 |
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{ |
| 199 |
6078 |
locationPath( true ); |
| 200 |
5928 |
break; |
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} |
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default: |
| 203 |
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{ |
| 204 |
30 |
XPathSyntaxException ex = createSyntaxException( "Unexpected '" + LT(1).getTokenText() + "'" ); |
| 205 |
30 |
throw ex; |
| 206 |
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} |
| 207 |
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} |
| 208 |
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|
| 209 |
23256 |
getXPathHandler().endPathExpr(); |
| 210 |
23256 |
} |
| 211 |
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| 212 |
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private void numberDouble() throws SAXPathException |
| 213 |
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{ |
| 214 |
276 |
Token token = match( TokenTypes.DOUBLE ); |
| 215 |
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| 216 |
276 |
getXPathHandler().number( Double.parseDouble( token.getTokenText() ) ); |
| 217 |
276 |
} |
| 218 |
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| 219 |
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private void numberInteger() throws SAXPathException |
| 220 |
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{ |
| 221 |
4278 |
Token token = match( TokenTypes.INTEGER ); |
| 222 |
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| 223 |
4278 |
String text = token.getTokenText(); |
| 224 |
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try { |
| 225 |
4278 |
getXPathHandler().number( Integer.parseInt( text ) ); |
| 226 |
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} |
| 227 |
0 |
catch (NumberFormatException ex) { |
| 228 |
0 |
getXPathHandler().number( Double.parseDouble( text ) ); |
| 229 |
4278 |
} |
| 230 |
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| 231 |
4278 |
} |
| 232 |
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private void literal() throws SAXPathException |
| 234 |
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{ |
| 235 |
3948 |
Token token = match( TokenTypes.LITERAL ); |
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| 237 |
3948 |
getXPathHandler().literal( token.getTokenText() ); |
| 238 |
3948 |
} |
| 239 |
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private void functionCall() throws SAXPathException |
| 241 |
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{ |
| 242 |
4632 |
String prefix = null; |
| 243 |
4632 |
String functionName = null; |
| 244 |
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|
| 245 |
4632 |
if ( LA(2) == TokenTypes.COLON ) |
| 246 |
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{ |
| 247 |
6 |
prefix = match( TokenTypes.IDENTIFIER ).getTokenText(); |
| 248 |
6 |
match( TokenTypes.COLON ); |
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} |
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else |
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{ |
| 252 |
4626 |
prefix = ""; |
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} |
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| 255 |
4632 |
functionName = match( TokenTypes.IDENTIFIER ).getTokenText(); |
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| 257 |
4632 |
getXPathHandler().startFunction( prefix, |
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functionName ); |
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| 260 |
4632 |
match ( TokenTypes.LEFT_PAREN ); |
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| 262 |
4632 |
arguments(); |
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| 264 |
4608 |
match ( TokenTypes.RIGHT_PAREN ); |
| 265 |
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| 266 |
4608 |
getXPathHandler().endFunction(); |
| 267 |
4608 |
} |
| 268 |
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| 269 |
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private void arguments() throws SAXPathException |
| 270 |
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{ |
| 271 |
6534 |
while ( LA(1) != TokenTypes.RIGHT_PAREN ) |
| 272 |
|
{ |
| 273 |
5496 |
expr(); |
| 274 |
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|
| 275 |
5472 |
if ( LA(1) == TokenTypes.COMMA ) |
| 276 |
|
{ |
| 277 |
1902 |
match( TokenTypes.COMMA ); |
| 278 |
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} |
| 279 |
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else |
| 280 |
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{ |
| 281 |
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break; |
| 282 |
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} |
| 283 |
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} |
| 284 |
4608 |
} |
| 285 |
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|
| 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 |
|
} |