3 CHOICE_AMBIGUITY_CHECK = 2;
4 OTHER_AMBIGUITY_CHECK = 1;
7 DEBUG_LOOKAHEAD = false;
8 DEBUG_TOKEN_MANAGER = false;
9 OPTIMIZE_TOKEN_MANAGER = false;
10 ERROR_REPORTING = true;
11 JAVA_UNICODE_ESCAPE = false;
12 UNICODE_INPUT = false;
14 USER_TOKEN_MANAGER = false;
15 USER_CHAR_STREAM = false;
17 BUILD_TOKEN_MANAGER = true;
19 FORCE_LA_CHECK = false;
22 PARSER_BEGIN(PHPParser)
25 import org.eclipse.core.resources.IFile;
26 import org.eclipse.core.resources.IMarker;
27 import org.eclipse.core.runtime.CoreException;
28 import org.eclipse.ui.texteditor.MarkerUtilities;
29 import org.eclipse.jface.preference.IPreferenceStore;
31 import java.util.Hashtable;
32 import java.util.Enumeration;
33 import java.util.ArrayList;
34 import java.io.StringReader;
36 import java.text.MessageFormat;
38 import net.sourceforge.phpeclipse.actions.PHPStartApacheAction;
39 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
40 import net.sourceforge.phpdt.internal.compiler.ast.*;
41 import net.sourceforge.phpdt.internal.compiler.parser.OutlineableWithChildren;
42 import net.sourceforge.phpdt.internal.compiler.parser.PHPOutlineInfo;
46 * This php parser is inspired by the Java 1.2 grammar example
47 * given with JavaCC. You can get JavaCC at http://www.webgain.com
48 * You can test the parser with the PHPParserTestCase2.java
49 * @author Matthieu Casanova
51 public final class PHPParser extends PHPParserSuperclass {
53 /** The file that is parsed. */
54 private static IFile fileToParse;
56 /** The current segment. */
57 private static OutlineableWithChildren currentSegment;
59 private static final String PARSE_ERROR_STRING = "Parse error"; //$NON-NLS-1$
60 private static final String PARSE_WARNING_STRING = "Warning"; //$NON-NLS-1$
61 static PHPOutlineInfo outlineInfo;
63 private static boolean assigning;
65 /** The error level of the current ParseException. */
66 private static int errorLevel = ERROR;
67 /** The message of the current ParseException. If it's null it's because the parse exception wasn't handled */
68 private static String errorMessage;
70 private static int errorStart = -1;
71 private static int errorEnd = -1;
72 private static PHPDocument phpDocument;
74 private static final char[] SYNTAX_ERROR_CHAR = {'s','y','n','t','a','x',' ','e','r','r','o','r'};
76 * The point where html starts.
77 * It will be used by the token manager to create HTMLCode objects
79 public static int htmlStart;
82 private final static int AstStackIncrement = 100;
83 /** The stack of node. */
84 private static AstNode[] nodes;
85 /** The cursor in expression stack. */
86 private static int nodePtr;
88 public final void setFileToParse(final IFile fileToParse) {
89 this.fileToParse = fileToParse;
95 public PHPParser(final IFile fileToParse) {
96 this(new StringReader(""));
97 this.fileToParse = fileToParse;
101 * Reinitialize the parser.
103 private static final void init() {
104 nodes = new AstNode[AstStackIncrement];
110 * Add an php node on the stack.
111 * @param node the node that will be added to the stack
113 private static final void pushOnAstNodes(AstNode node) {
115 nodes[++nodePtr] = node;
116 } catch (IndexOutOfBoundsException e) {
117 int oldStackLength = nodes.length;
118 AstNode[] oldStack = nodes;
119 nodes = new AstNode[oldStackLength + AstStackIncrement];
120 System.arraycopy(oldStack, 0, nodes, 0, oldStackLength);
121 nodePtr = oldStackLength;
122 nodes[nodePtr] = node;
126 public final PHPOutlineInfo parseInfo(final Object parent, final String s) {
127 phpDocument = new PHPDocument(parent,"_root".toCharArray());
128 currentSegment = phpDocument;
129 outlineInfo = new PHPOutlineInfo(parent, currentSegment);
130 final StringReader stream = new StringReader(s);
131 if (jj_input_stream == null) {
132 jj_input_stream = new SimpleCharStream(stream, 1, 1);
138 phpDocument.nodes = new AstNode[nodes.length];
139 System.arraycopy(nodes,0,phpDocument.nodes,0,nodes.length);
140 if (PHPeclipsePlugin.DEBUG) {
141 PHPeclipsePlugin.log(1,phpDocument.toString());
143 } catch (ParseException e) {
144 processParseException(e);
150 * This method will process the parse exception.
151 * If the error message is null, the parse exception wasn't catched and a trace is written in the log
152 * @param e the ParseException
154 private static void processParseException(final ParseException e) {
155 if (errorMessage == null) {
156 PHPeclipsePlugin.log(e);
157 errorMessage = "this exception wasn't handled by the parser please tell us how to reproduce it";
158 errorStart = SimpleCharStream.getPosition();
159 errorEnd = errorStart + 1;
166 * Create marker for the parse error
167 * @param e the ParseException
169 private static void setMarker(final ParseException e) {
171 if (errorStart == -1) {
172 setMarker(fileToParse,
174 SimpleCharStream.tokenBegin,
175 SimpleCharStream.tokenBegin + e.currentToken.image.length(),
177 "Line " + e.currentToken.beginLine);
179 setMarker(fileToParse,
184 "Line " + e.currentToken.beginLine);
188 } catch (CoreException e2) {
189 PHPeclipsePlugin.log(e2);
194 * Create markers according to the external parser output
196 private static void createMarkers(final String output, final IFile file) throws CoreException {
197 // delete all markers
198 file.deleteMarkers(IMarker.PROBLEM, false, 0);
203 while ((brIndx = output.indexOf("<br />", indx)) != -1) {
204 // newer php error output (tested with 4.2.3)
205 scanLine(output, file, indx, brIndx);
210 while ((brIndx = output.indexOf("<br>", indx)) != -1) {
211 // older php error output (tested with 4.2.3)
212 scanLine(output, file, indx, brIndx);
218 private static void scanLine(final String output,
221 final int brIndx) throws CoreException {
223 StringBuffer lineNumberBuffer = new StringBuffer(10);
225 current = output.substring(indx, brIndx);
227 if (current.indexOf(PARSE_WARNING_STRING) != -1 || current.indexOf(PARSE_ERROR_STRING) != -1) {
228 int onLine = current.indexOf("on line <b>");
230 lineNumberBuffer.delete(0, lineNumberBuffer.length());
231 for (int i = onLine; i < current.length(); i++) {
232 ch = current.charAt(i);
233 if ('0' <= ch && '9' >= ch) {
234 lineNumberBuffer.append(ch);
238 int lineNumber = Integer.parseInt(lineNumberBuffer.toString());
240 Hashtable attributes = new Hashtable();
242 current = current.replaceAll("\n", "");
243 current = current.replaceAll("<b>", "");
244 current = current.replaceAll("</b>", "");
245 MarkerUtilities.setMessage(attributes, current);
247 if (current.indexOf(PARSE_ERROR_STRING) != -1)
248 attributes.put(IMarker.SEVERITY, new Integer(IMarker.SEVERITY_ERROR));
249 else if (current.indexOf(PARSE_WARNING_STRING) != -1)
250 attributes.put(IMarker.SEVERITY, new Integer(IMarker.SEVERITY_WARNING));
252 attributes.put(IMarker.SEVERITY, new Integer(IMarker.SEVERITY_INFO));
253 MarkerUtilities.setLineNumber(attributes, lineNumber);
254 MarkerUtilities.createMarker(file, attributes, IMarker.PROBLEM);
259 public final void parse(final String s) throws CoreException {
260 final StringReader stream = new StringReader(s);
261 if (jj_input_stream == null) {
262 jj_input_stream = new SimpleCharStream(stream, 1, 1);
268 } catch (ParseException e) {
269 processParseException(e);
274 * Call the php parse command ( php -l -f <filename> )
275 * and create markers according to the external parser output
277 public static void phpExternalParse(final IFile file) {
278 final IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
279 final String filename = file.getLocation().toString();
281 final String[] arguments = { filename };
282 final MessageFormat form = new MessageFormat(store.getString(PHPeclipsePlugin.EXTERNAL_PARSER_PREF));
283 final String command = form.format(arguments);
285 final String parserResult = PHPStartApacheAction.getParserOutput(command, "External parser: ");
288 // parse the buffer to find the errors and warnings
289 createMarkers(parserResult, file);
290 } catch (CoreException e) {
291 PHPeclipsePlugin.log(e);
296 * Put a new html block in the stack.
298 public static final void createNewHTMLCode() {
299 final int currentPosition = SimpleCharStream.getPosition();
300 if (currentPosition == htmlStart) {
303 final char[] chars = SimpleCharStream.currentBuffer.substring(htmlStart,currentPosition+1).toCharArray();
304 pushOnAstNodes(new HTMLCode(chars, htmlStart,currentPosition));
307 private static final void parse() throws ParseException {
312 PARSER_END(PHPParser)
316 <PHPSTARTSHORT : "<?"> {PHPParser.createNewHTMLCode();} : PHPPARSING
317 | <PHPSTARTLONG : "<?php"> {PHPParser.createNewHTMLCode();} : PHPPARSING
318 | <PHPECHOSTART : "<?="> {PHPParser.createNewHTMLCode();} : PHPPARSING
323 <PHPEND :"?>"> {PHPParser.htmlStart = SimpleCharStream.getPosition();} : DEFAULT
326 /* Skip any character if we are not in php mode */
344 <PHPPARSING> SPECIAL_TOKEN :
346 "//" : IN_SINGLE_LINE_COMMENT
348 "#" : IN_SINGLE_LINE_COMMENT
350 <"/**" ~["/"]> { input_stream.backup(1); } : IN_FORMAL_COMMENT
352 "/*" : IN_MULTI_LINE_COMMENT
355 <IN_SINGLE_LINE_COMMENT> SPECIAL_TOKEN :
357 <SINGLE_LINE_COMMENT: "\n" | "\r" | "\r\n" > : PHPPARSING
360 <IN_SINGLE_LINE_COMMENT> SPECIAL_TOKEN :
362 <SINGLE_LINE_COMMENT_PHPEND : "?>" > : DEFAULT
368 <FORMAL_COMMENT: "*/" > : PHPPARSING
371 <IN_MULTI_LINE_COMMENT>
374 <MULTI_LINE_COMMENT: "*/" > : PHPPARSING
377 <IN_SINGLE_LINE_COMMENT,IN_FORMAL_COMMENT,IN_MULTI_LINE_COMMENT>
387 | <FUNCTION : "function">
390 | <ELSEIF : "elseif">
397 /* LANGUAGE CONSTRUCT */
402 | <INCLUDE : "include">
403 | <REQUIRE : "require">
404 | <INCLUDE_ONCE : "include_once">
405 | <REQUIRE_ONCE : "require_once">
406 | <GLOBAL : "global">
407 | <STATIC : "static">
408 | <CLASSACCESS : "->">
409 | <STATICCLASSACCESS : "::">
410 | <ARRAYASSIGN : "=>">
413 /* RESERVED WORDS AND LITERALS */
419 | <CONTINUE : "continue">
420 | <_DEFAULT : "default">
422 | <EXTENDS : "extends">
427 | <RETURN : "return">
429 | <SWITCH : "switch">
434 | <ENDWHILE : "endwhile">
435 | <ENDSWITCH: "endswitch">
437 | <ENDFOR : "endfor">
438 | <FOREACH : "foreach">
446 | <OBJECT : "object">
448 | <BOOLEAN : "boolean">
450 | <DOUBLE : "double">
453 | <INTEGER : "integer">
483 | <RSIGNEDSHIFT : ">>">
484 | <RUNSIGNEDSHIFT : ">>>">
493 <DECIMAL_LITERAL> (["l","L"])?
494 | <HEX_LITERAL> (["l","L"])?
495 | <OCTAL_LITERAL> (["l","L"])?
498 <#DECIMAL_LITERAL: ["1"-"9"] (["0"-"9"])* >
500 <#HEX_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])+ >
502 <#OCTAL_LITERAL: "0" (["0"-"7"])* >
504 <FLOATING_POINT_LITERAL:
505 (["0"-"9"])+ "." (["0"-"9"])* (<EXPONENT>)? (["f","F","d","D"])?
506 | "." (["0"-"9"])+ (<EXPONENT>)? (["f","F","d","D"])?
507 | (["0"-"9"])+ <EXPONENT> (["f","F","d","D"])?
508 | (["0"-"9"])+ (<EXPONENT>)? ["f","F","d","D"]
511 <#EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
513 <STRING_LITERAL: (<STRING_1> | <STRING_2> | <STRING_3>)>
546 < IDENTIFIER: (<LETTER>|<SPECIAL>) (<LETTER>|<DIGIT>|<SPECIAL>)* >
549 ["a"-"z"] | ["A"-"Z"]
557 "_" | ["\u007f"-"\u00ff"]
582 | <EQUAL_EQUAL : "==">
587 | <BANGDOUBLEEQUAL : "!==">
588 | <TRIPLEEQUAL : "===">
595 | <PLUSASSIGN : "+=">
596 | <MINUSASSIGN : "-=">
597 | <STARASSIGN : "*=">
598 | <SLASHASSIGN : "/=">
604 | <TILDEEQUAL : "~=">
605 | <LSHIFTASSIGN : "<<=">
606 | <RSIGNEDSHIFTASSIGN : ">>=">
611 < DOLLAR_ID: <DOLLAR> <IDENTIFIER> >
620 } catch (TokenMgrError e) {
621 PHPeclipsePlugin.log(e);
622 errorStart = SimpleCharStream.getPosition();
623 errorEnd = errorStart + 1;
624 errorMessage = e.getMessage();
626 throw generateParseException();
631 * A php block is a <?= expression [;]?>
632 * or <?php somephpcode ?>
633 * or <? somephpcode ?>
637 final int start = SimpleCharStream.getPosition();
645 setMarker(fileToParse,
646 "You should use '<?php' instead of '<?' it will avoid some problems with XML",
648 SimpleCharStream.getPosition(),
650 "Line " + token.beginLine);
651 } catch (CoreException e) {
652 PHPeclipsePlugin.log(e);
658 } catch (ParseException e) {
659 errorMessage = "'?>' expected";
661 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
662 errorEnd = SimpleCharStream.getPosition() + 1;
663 processParseException(e);
667 PHPEchoBlock phpEchoBlock() :
669 final Expression expr;
670 final int pos = SimpleCharStream.getPosition();
671 PHPEchoBlock echoBlock;
674 <PHPECHOSTART> expr = Expression() [ <SEMICOLON> ] <PHPEND>
676 echoBlock = new PHPEchoBlock(expr,pos,SimpleCharStream.getPosition());
677 pushOnAstNodes(echoBlock);
687 ClassDeclaration ClassDeclaration() :
689 final ClassDeclaration classDeclaration;
690 final Token className;
691 Token superclassName = null;
693 char[] classNameImage = SYNTAX_ERROR_CHAR;
694 char[] superclassNameImage = null;
698 {pos = SimpleCharStream.getPosition();}
700 className = <IDENTIFIER>
701 {classNameImage = className.image.toCharArray();}
702 } catch (ParseException e) {
703 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', identifier expected";
705 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
706 errorEnd = SimpleCharStream.getPosition() + 1;
707 processParseException(e);
712 superclassName = <IDENTIFIER>
713 {superclassNameImage = superclassName .image.toCharArray();}
714 } catch (ParseException e) {
715 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', identifier expected";
717 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
718 errorEnd = SimpleCharStream.getPosition() + 1;
719 processParseException(e);
720 superclassNameImage = SYNTAX_ERROR_CHAR;
724 if (superclassNameImage == null) {
725 classDeclaration = new ClassDeclaration(currentSegment,
730 classDeclaration = new ClassDeclaration(currentSegment,
736 currentSegment.add(classDeclaration);
737 currentSegment = classDeclaration;
739 ClassBody(classDeclaration)
740 {currentSegment = (OutlineableWithChildren) currentSegment.getParent();
741 classDeclaration.sourceEnd = SimpleCharStream.getPosition();
742 pushOnAstNodes(classDeclaration);
743 return classDeclaration;}
746 void ClassBody(ClassDeclaration classDeclaration) :
751 } catch (ParseException e) {
752 errorMessage = "unexpected token : '"+ e.currentToken.next.image + "', '{' expected";
754 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
755 errorEnd = SimpleCharStream.getPosition() + 1;
758 ( ClassBodyDeclaration(classDeclaration) )*
761 } catch (ParseException e) {
762 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', 'var', 'function' or '}' expected";
764 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
765 errorEnd = SimpleCharStream.getPosition() + 1;
771 * A class can contain only methods and fields.
773 void ClassBodyDeclaration(ClassDeclaration classDeclaration) :
775 MethodDeclaration method;
776 FieldDeclaration field;
779 method = MethodDeclaration() {method.setParent(classDeclaration);}
780 | field = FieldDeclaration()
784 * A class field declaration : it's var VariableDeclarator() (, VariableDeclarator())*;.
786 FieldDeclaration FieldDeclaration() :
788 VariableDeclaration variableDeclaration;
789 VariableDeclaration[] list;
790 final ArrayList arrayList = new ArrayList();
791 final int pos = SimpleCharStream.getPosition();
794 <VAR> variableDeclaration = VariableDeclarator()
795 {arrayList.add(variableDeclaration);
796 outlineInfo.addVariable(new String(variableDeclaration.name));
797 currentSegment.add(variableDeclaration);}
798 ( <COMMA> variableDeclaration = VariableDeclarator()
799 {arrayList.add(variableDeclaration);
800 outlineInfo.addVariable(new String(variableDeclaration.name));
801 currentSegment.add(variableDeclaration);}
805 } catch (ParseException e) {
806 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. A ';' was expected after variable declaration";
808 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
809 errorEnd = SimpleCharStream.getPosition() + 1;
810 processParseException(e);
813 {list = new VariableDeclaration[arrayList.size()];
814 arrayList.toArray(list);
815 return new FieldDeclaration(list,
817 SimpleCharStream.getPosition(),
821 VariableDeclaration VariableDeclarator() :
823 final String varName;
824 Expression initializer = null;
825 final int pos = SimpleCharStream.getPosition();
828 varName = VariableDeclaratorId()
832 initializer = VariableInitializer()
833 } catch (ParseException e) {
834 errorMessage = "Literal expression expected in variable initializer";
836 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
837 errorEnd = SimpleCharStream.getPosition() + 1;
842 if (initializer == null) {
843 return new VariableDeclaration(currentSegment,
844 varName.toCharArray(),
846 SimpleCharStream.getPosition());
848 return new VariableDeclaration(currentSegment,
849 varName.toCharArray(),
857 * @return the variable name (with suffix)
859 String VariableDeclaratorId() :
862 Expression expression;
863 final StringBuffer buff = new StringBuffer();
864 final int pos = SimpleCharStream.getPosition();
865 ConstantIdentifier ex;
869 expr = Variable() {buff.append(expr);}
871 {ex = new ConstantIdentifier(expr.toCharArray(),
873 SimpleCharStream.getPosition());}
874 expression = VariableSuffix(ex)
875 {buff.append(expression.toStringExpression());}
877 {return buff.toString();}
878 } catch (ParseException e) {
879 errorMessage = "'$' expected for variable identifier";
881 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
882 errorEnd = SimpleCharStream.getPosition() + 1;
889 final StringBuffer buff;
890 Expression expression = null;
895 token = <DOLLAR_ID> [<LBRACE> expression = Expression() <RBRACE>]
897 if (expression == null && !assigning) {
898 return token.image.substring(1);
900 buff = new StringBuffer(token.image);
902 buff.append(expression.toStringExpression());
904 return buff.toString();
907 <DOLLAR> expr = VariableName()
911 String VariableName():
913 final StringBuffer buff;
915 Expression expression = null;
919 <LBRACE> expression = Expression() <RBRACE>
920 {buff = new StringBuffer("{");
921 buff.append(expression.toStringExpression());
923 return buff.toString();}
925 token = <IDENTIFIER> [<LBRACE> expression = Expression() <RBRACE>]
927 if (expression == null) {
930 buff = new StringBuffer(token.image);
932 buff.append(expression.toStringExpression());
934 return buff.toString();
937 <DOLLAR> expr = VariableName()
939 buff = new StringBuffer("$");
941 return buff.toString();
944 token = <DOLLAR_ID> {return token.image;}
947 Expression VariableInitializer() :
949 final Expression expr;
951 final int pos = SimpleCharStream.getPosition();
957 <MINUS> (token = <INTEGER_LITERAL> | token = <FLOATING_POINT_LITERAL>)
958 {return new PrefixedUnaryExpression(new NumberLiteral(token.image.toCharArray(),
960 SimpleCharStream.getPosition()),
964 <PLUS> (token = <INTEGER_LITERAL> | token = <FLOATING_POINT_LITERAL>)
965 {return new PrefixedUnaryExpression(new NumberLiteral(token.image.toCharArray(),
967 SimpleCharStream.getPosition()),
971 expr = ArrayDeclarator()
975 {return new ConstantIdentifier(token.image.toCharArray(),pos,SimpleCharStream.getPosition());}
978 ArrayVariableDeclaration ArrayVariable() :
980 Expression expr,expr2;
984 [<ARRAYASSIGN> expr2 = Expression()
985 {return new ArrayVariableDeclaration(expr,expr2);}
987 {return new ArrayVariableDeclaration(expr,SimpleCharStream.getPosition());}
990 ArrayVariableDeclaration[] ArrayInitializer() :
992 ArrayVariableDeclaration expr;
993 final ArrayList list = new ArrayList();
996 <LPAREN> [ expr = ArrayVariable()
998 ( LOOKAHEAD(2) <COMMA> expr = ArrayVariable()
1002 [<COMMA> {list.add(null);}]
1005 ArrayVariableDeclaration[] vars = new ArrayVariableDeclaration[list.size()];
1011 * A Method Declaration.
1012 * <b>function</b> MetodDeclarator() Block()
1014 MethodDeclaration MethodDeclaration() :
1016 final MethodDeclaration functionDeclaration;
1022 functionDeclaration = MethodDeclarator()
1023 {outlineInfo.addVariable(new String(functionDeclaration.name));}
1024 } catch (ParseException e) {
1025 if (errorMessage != null) throw e;
1026 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', function identifier expected";
1028 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1029 errorEnd = SimpleCharStream.getPosition() + 1;
1033 if (currentSegment != null) {
1034 currentSegment.add(functionDeclaration);
1035 currentSegment = functionDeclaration;
1040 functionDeclaration.statements = block.statements;
1041 if (currentSegment != null) {
1042 currentSegment = (OutlineableWithChildren) currentSegment.getParent();
1044 return functionDeclaration;
1049 * A MethodDeclarator.
1050 * [&] IDENTIFIER(parameters ...).
1051 * @return a function description for the outline
1053 MethodDeclaration MethodDeclarator() :
1055 final Token identifier;
1056 Token reference = null;
1057 final Hashtable formalParameters;
1058 final int pos = SimpleCharStream.getPosition();
1059 char[] identifierChar = SYNTAX_ERROR_CHAR;
1062 [reference = <BIT_AND>]
1064 identifier = <IDENTIFIER>
1065 {identifierChar = identifier.image.toCharArray();}
1066 } catch (ParseException e) {
1067 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', function identifier expected";
1069 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1070 errorEnd = SimpleCharStream.getPosition() + 1;
1071 processParseException(e);
1073 formalParameters = FormalParameters()
1074 {return new MethodDeclaration(currentSegment,
1079 SimpleCharStream.getPosition());}
1083 * FormalParameters follows method identifier.
1084 * (FormalParameter())
1086 Hashtable FormalParameters() :
1088 VariableDeclaration var;
1089 final Hashtable parameters = new Hashtable();
1094 } catch (ParseException e) {
1095 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', '(' expected after function identifier";
1097 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1098 errorEnd = SimpleCharStream.getPosition() + 1;
1101 [ var = FormalParameter()
1102 {parameters.put(new String(var.name),var);}
1104 <COMMA> var = FormalParameter()
1105 {parameters.put(new String(var.name),var);}
1110 } catch (ParseException e) {
1111 errorMessage = "')' expected";
1113 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1114 errorEnd = SimpleCharStream.getPosition() + 1;
1117 {return parameters;}
1121 * A formal parameter.
1122 * $varname[=value] (,$varname[=value])
1124 VariableDeclaration FormalParameter() :
1126 final VariableDeclaration variableDeclaration;
1130 [token = <BIT_AND>] variableDeclaration = VariableDeclarator()
1132 if (token != null) {
1133 variableDeclaration.setReference(true);
1135 return variableDeclaration;}
1138 ConstantIdentifier Type() :
1141 <STRING> {pos = SimpleCharStream.getPosition();
1142 return new ConstantIdentifier(Types.STRING,pos,pos-6);}
1143 | <BOOL> {pos = SimpleCharStream.getPosition();
1144 return new ConstantIdentifier(Types.BOOL,pos,pos-4);}
1145 | <BOOLEAN> {pos = SimpleCharStream.getPosition();
1146 return new ConstantIdentifier(Types.BOOLEAN,pos,pos-7);}
1147 | <REAL> {pos = SimpleCharStream.getPosition();
1148 return new ConstantIdentifier(Types.REAL,pos,pos-4);}
1149 | <DOUBLE> {pos = SimpleCharStream.getPosition();
1150 return new ConstantIdentifier(Types.DOUBLE,pos,pos-5);}
1151 | <FLOAT> {pos = SimpleCharStream.getPosition();
1152 return new ConstantIdentifier(Types.FLOAT,pos,pos-5);}
1153 | <INT> {pos = SimpleCharStream.getPosition();
1154 return new ConstantIdentifier(Types.INT,pos,pos-3);}
1155 | <INTEGER> {pos = SimpleCharStream.getPosition();
1156 return new ConstantIdentifier(Types.INTEGER,pos,pos-7);}
1157 | <OBJECT> {pos = SimpleCharStream.getPosition();
1158 return new ConstantIdentifier(Types.OBJECT,pos,pos-6);}
1161 Expression Expression() :
1163 final Expression expr;
1166 expr = PrintExpression() {return expr;}
1167 | expr = ListExpression() {return expr;}
1168 | LOOKAHEAD(varAssignation())
1169 expr = varAssignation() {return expr;}
1170 | expr = ConditionalExpression() {return expr;}
1174 * A Variable assignation.
1175 * varName (an assign operator) any expression
1177 VarAssignation varAssignation() :
1180 final Expression expression;
1181 final int assignOperator;
1182 final int pos = SimpleCharStream.getPosition();
1185 varName = VariableDeclaratorId()
1186 assignOperator = AssignmentOperator()
1188 expression = Expression()
1189 } catch (ParseException e) {
1190 if (errorMessage != null) {
1193 errorMessage = "expression expected";
1195 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1196 errorEnd = SimpleCharStream.getPosition() + 1;
1199 {return new VarAssignation(varName.toCharArray(),
1203 SimpleCharStream.getPosition());}
1206 int AssignmentOperator() :
1209 <ASSIGN> {return VarAssignation.EQUAL;}
1210 | <STARASSIGN> {return VarAssignation.STAR_EQUAL;}
1211 | <SLASHASSIGN> {return VarAssignation.SLASH_EQUAL;}
1212 | <REMASSIGN> {return VarAssignation.REM_EQUAL;}
1213 | <PLUSASSIGN> {return VarAssignation.PLUS_EQUAL;}
1214 | <MINUSASSIGN> {return VarAssignation.MINUS_EQUAL;}
1215 | <LSHIFTASSIGN> {return VarAssignation.LSHIFT_EQUAL;}
1216 | <RSIGNEDSHIFTASSIGN> {return VarAssignation.RSIGNEDSHIFT_EQUAL;}
1217 | <ANDASSIGN> {return VarAssignation.AND_EQUAL;}
1218 | <XORASSIGN> {return VarAssignation.XOR_EQUAL;}
1219 | <ORASSIGN> {return VarAssignation.OR_EQUAL;}
1220 | <DOTASSIGN> {return VarAssignation.DOT_EQUAL;}
1221 | <TILDEEQUAL> {return VarAssignation.TILDE_EQUAL;}
1224 Expression ConditionalExpression() :
1226 final Expression expr;
1227 Expression expr2 = null;
1228 Expression expr3 = null;
1231 expr = ConditionalOrExpression() [ <HOOK> expr2 = Expression() <COLON> expr3 = ConditionalExpression() ]
1233 if (expr3 == null) {
1236 return new ConditionalExpression(expr,expr2,expr3);
1240 Expression ConditionalOrExpression() :
1242 Expression expr,expr2;
1246 expr = ConditionalAndExpression()
1249 <OR_OR> {operator = OperatorIds.OR_OR;}
1250 | <_ORL> {operator = OperatorIds.ORL;}
1251 ) expr2 = ConditionalAndExpression()
1253 expr = new BinaryExpression(expr,expr2,operator);
1259 Expression ConditionalAndExpression() :
1261 Expression expr,expr2;
1265 expr = ConcatExpression()
1267 ( <AND_AND> {operator = OperatorIds.AND_AND;}
1268 | <_ANDL> {operator = OperatorIds.ANDL;})
1269 expr2 = ConcatExpression() {expr = new BinaryExpression(expr,expr2,operator);}
1274 Expression ConcatExpression() :
1276 Expression expr,expr2;
1279 expr = InclusiveOrExpression()
1281 <DOT> expr2 = InclusiveOrExpression()
1282 {expr = new BinaryExpression(expr,expr2,OperatorIds.DOT);}
1287 Expression InclusiveOrExpression() :
1289 Expression expr,expr2;
1292 expr = ExclusiveOrExpression()
1293 (<BIT_OR> expr2 = ExclusiveOrExpression()
1294 {expr = new BinaryExpression(expr,expr2,OperatorIds.OR);}
1299 Expression ExclusiveOrExpression() :
1301 Expression expr,expr2;
1304 expr = AndExpression()
1306 <XOR> expr2 = AndExpression()
1307 {expr = new BinaryExpression(expr,expr2,OperatorIds.XOR);}
1312 Expression AndExpression() :
1314 Expression expr,expr2;
1317 expr = EqualityExpression()
1319 <BIT_AND> expr2 = EqualityExpression()
1320 {expr = new BinaryExpression(expr,expr2,OperatorIds.AND);}
1325 Expression EqualityExpression() :
1327 Expression expr,expr2;
1331 expr = RelationalExpression()
1333 ( <EQUAL_EQUAL> {operator = OperatorIds.EQUAL_EQUAL;}
1334 | <DIF> {operator = OperatorIds.DIF;}
1335 | <NOT_EQUAL> {operator = OperatorIds.DIF;}
1336 | <BANGDOUBLEEQUAL> {operator = OperatorIds.BANG_EQUAL_EQUAL;}
1337 | <TRIPLEEQUAL> {operator = OperatorIds.EQUAL_EQUAL_EQUAL;}
1340 expr2 = RelationalExpression()
1341 } catch (ParseException e) {
1342 if (errorMessage != null) {
1345 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', expression expected";
1347 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1348 errorEnd = SimpleCharStream.getPosition() + 1;
1352 expr = new BinaryExpression(expr,expr2,operator);
1358 Expression RelationalExpression() :
1360 Expression expr,expr2;
1364 expr = ShiftExpression()
1366 ( <LT> {operator = OperatorIds.LESS;}
1367 | <GT> {operator = OperatorIds.GREATER;}
1368 | <LE> {operator = OperatorIds.LESS_EQUAL;}
1369 | <GE> {operator = OperatorIds.GREATER_EQUAL;})
1370 expr2 = ShiftExpression()
1371 {expr = new BinaryExpression(expr,expr2,operator);}
1376 Expression ShiftExpression() :
1378 Expression expr,expr2;
1382 expr = AdditiveExpression()
1384 ( <LSHIFT> {operator = OperatorIds.LEFT_SHIFT;}
1385 | <RSIGNEDSHIFT> {operator = OperatorIds.RIGHT_SHIFT;}
1386 | <RUNSIGNEDSHIFT> {operator = OperatorIds.UNSIGNED_RIGHT_SHIFT;})
1387 expr2 = AdditiveExpression()
1388 {expr = new BinaryExpression(expr,expr2,operator);}
1393 Expression AdditiveExpression() :
1395 Expression expr,expr2;
1399 expr = MultiplicativeExpression()
1401 ( <PLUS> {operator = OperatorIds.PLUS;}
1402 | <MINUS> {operator = OperatorIds.MINUS;} )
1403 expr2 = MultiplicativeExpression()
1404 {expr = new BinaryExpression(expr,expr2,operator);}
1409 Expression MultiplicativeExpression() :
1411 Expression expr,expr2;
1416 expr = UnaryExpression()
1417 } catch (ParseException e) {
1418 if (errorMessage != null) throw e;
1419 errorMessage = "unexpected token '"+e.currentToken.next.image+"'";
1421 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1422 errorEnd = SimpleCharStream.getPosition() + 1;
1426 ( <STAR> {operator = OperatorIds.MULTIPLY;}
1427 | <SLASH> {operator = OperatorIds.DIVIDE;}
1428 | <REMAINDER> {operator = OperatorIds.REMAINDER;})
1429 expr2 = UnaryExpression()
1430 {expr = new BinaryExpression(expr,expr2,operator);}
1436 * An unary expression starting with @, & or nothing
1438 Expression UnaryExpression() :
1441 final int pos = SimpleCharStream.getPosition();
1444 <BIT_AND> expr = UnaryExpressionNoPrefix()
1445 {return new PrefixedUnaryExpression(expr,OperatorIds.AND,pos);}
1447 expr = AtUnaryExpression() {return expr;}
1450 Expression AtUnaryExpression() :
1453 final int pos = SimpleCharStream.getPosition();
1457 expr = AtUnaryExpression()
1458 {return new PrefixedUnaryExpression(expr,OperatorIds.AT,pos);}
1460 expr = UnaryExpressionNoPrefix()
1465 Expression UnaryExpressionNoPrefix() :
1469 final int pos = SimpleCharStream.getPosition();
1472 ( <PLUS> {operator = OperatorIds.PLUS;}
1473 | <MINUS> {operator = OperatorIds.MINUS;})
1474 expr = UnaryExpression()
1475 {return new PrefixedUnaryExpression(expr,operator,pos);}
1477 expr = PreIncDecExpression()
1480 expr = UnaryExpressionNotPlusMinus()
1485 Expression PreIncDecExpression() :
1487 final Expression expr;
1489 final int pos = SimpleCharStream.getPosition();
1492 ( <INCR> {operator = OperatorIds.PLUS_PLUS;}
1493 | <DECR> {operator = OperatorIds.MINUS_MINUS;})
1494 expr = PrimaryExpression()
1495 {return new PrefixedUnaryExpression(expr,operator,pos);}
1498 Expression UnaryExpressionNotPlusMinus() :
1501 final int pos = SimpleCharStream.getPosition();
1504 <BANG> expr = UnaryExpression() {return new PrefixedUnaryExpression(expr,OperatorIds.NOT,pos);}
1505 | LOOKAHEAD( <LPAREN> (Type() | <ARRAY>) <RPAREN> )
1506 expr = CastExpression() {return expr;}
1507 | expr = PostfixExpression() {return expr;}
1508 | expr = Literal() {return expr;}
1509 | <LPAREN> expr = Expression()
1512 } catch (ParseException e) {
1513 errorMessage = "')' expected";
1515 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1516 errorEnd = SimpleCharStream.getPosition() + 1;
1522 CastExpression CastExpression() :
1524 final ConstantIdentifier type;
1525 final Expression expr;
1526 final int pos = SimpleCharStream.getPosition();
1531 | <ARRAY> {type = new ConstantIdentifier(Types.ARRAY,pos,SimpleCharStream.getPosition());})
1532 <RPAREN> expr = UnaryExpression()
1533 {return new CastExpression(type,expr,pos,SimpleCharStream.getPosition());}
1536 Expression PostfixExpression() :
1540 final int pos = SimpleCharStream.getPosition();
1543 expr = PrimaryExpression()
1544 [ <INCR> {operator = OperatorIds.PLUS_PLUS;}
1545 | <DECR> {operator = OperatorIds.MINUS_MINUS;}]
1547 if (operator == -1) {
1550 return new PostfixedUnaryExpression(expr,operator,pos);
1554 Expression PrimaryExpression() :
1556 final Token identifier;
1558 final int pos = SimpleCharStream.getPosition();
1562 identifier = <IDENTIFIER> <STATICCLASSACCESS> expr = ClassIdentifier()
1563 {expr = new ClassAccess(new ConstantIdentifier(identifier.image.toCharArray(),
1565 SimpleCharStream.getPosition()),
1567 ClassAccess.STATIC);}
1568 (expr = PrimarySuffix(expr))*
1571 expr = PrimaryPrefix()
1572 (expr = PrimarySuffix(expr))*
1575 expr = ArrayDeclarator()
1579 ArrayInitializer ArrayDeclarator() :
1581 final ArrayVariableDeclaration[] vars;
1582 final int pos = SimpleCharStream.getPosition();
1585 <ARRAY> vars = ArrayInitializer()
1586 {return new ArrayInitializer(vars,pos,SimpleCharStream.getPosition());}
1589 Expression PrimaryPrefix() :
1591 final Expression expr;
1594 final int pos = SimpleCharStream.getPosition();
1597 token = <IDENTIFIER> {return new ConstantIdentifier(token.image.toCharArray(),
1599 SimpleCharStream.getPosition());}
1600 | <NEW> expr = ClassIdentifier() {return new PrefixedUnaryExpression(expr,
1603 | var = VariableDeclaratorId() {return new ConstantIdentifier(var.toCharArray(),
1605 SimpleCharStream.getPosition());}
1608 PrefixedUnaryExpression classInstantiation() :
1611 final StringBuffer buff;
1612 final int pos = SimpleCharStream.getPosition();
1615 <NEW> expr = ClassIdentifier()
1617 {buff = new StringBuffer(expr.toStringExpression());}
1618 expr = PrimaryExpression()
1619 {buff.append(expr.toStringExpression());
1620 expr = new ConstantIdentifier(buff.toString().toCharArray(),
1622 SimpleCharStream.getPosition());}
1624 {return new PrefixedUnaryExpression(expr,
1629 ConstantIdentifier ClassIdentifier():
1633 final int pos = SimpleCharStream.getPosition();
1636 token = <IDENTIFIER> {return new ConstantIdentifier(token.image.toCharArray(),
1638 SimpleCharStream.getPosition());}
1639 | expr = VariableDeclaratorId() {return new ConstantIdentifier(expr.toCharArray(),
1641 SimpleCharStream.getPosition());}
1644 AbstractSuffixExpression PrimarySuffix(Expression prefix) :
1646 final AbstractSuffixExpression expr;
1649 expr = Arguments(prefix) {return expr;}
1650 | expr = VariableSuffix(prefix) {return expr;}
1653 AbstractSuffixExpression VariableSuffix(Expression prefix) :
1656 final int pos = SimpleCharStream.getPosition();
1657 Expression expression = null;
1662 expr = VariableName()
1663 } catch (ParseException e) {
1664 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', function call or field access expected";
1666 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1667 errorEnd = SimpleCharStream.getPosition() + 1;
1670 {return new ClassAccess(prefix,
1671 new ConstantIdentifier(expr.toCharArray(),pos,SimpleCharStream.getPosition()),
1672 ClassAccess.NORMAL);}
1674 <LBRACKET> [ expression = Expression() | expression = Type() ] //Not good
1677 } catch (ParseException e) {
1678 errorMessage = "']' expected";
1680 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1681 errorEnd = SimpleCharStream.getPosition() + 1;
1684 {return new ArrayDeclarator(prefix,expression,SimpleCharStream.getPosition());}
1693 token = <INTEGER_LITERAL> {pos = SimpleCharStream.getPosition();
1694 return new NumberLiteral(token.image.toCharArray(),pos-token.image.length(),pos);}
1695 | token = <FLOATING_POINT_LITERAL> {pos = SimpleCharStream.getPosition();
1696 return new NumberLiteral(token.image.toCharArray(),pos-token.image.length(),pos);}
1697 | token = <STRING_LITERAL> {pos = SimpleCharStream.getPosition();
1698 return new StringLiteral(token.image.toCharArray(),pos-token.image.length());}
1699 | <TRUE> {pos = SimpleCharStream.getPosition();
1700 return new TrueLiteral(pos-4,pos);}
1701 | <FALSE> {pos = SimpleCharStream.getPosition();
1702 return new FalseLiteral(pos-4,pos);}
1703 | <NULL> {pos = SimpleCharStream.getPosition();
1704 return new NullLiteral(pos-4,pos);}
1707 FunctionCall Arguments(Expression func) :
1709 Expression[] args = null;
1712 <LPAREN> [ args = ArgumentList() ]
1715 } catch (ParseException e) {
1716 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', ')' expected to close the argument list";
1718 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1719 errorEnd = SimpleCharStream.getPosition() + 1;
1722 {return new FunctionCall(func,args,SimpleCharStream.getPosition());}
1726 * An argument list is a list of arguments separated by comma :
1727 * argumentDeclaration() (, argumentDeclaration)*
1728 * @return an array of arguments
1730 Expression[] ArgumentList() :
1733 final ArrayList list = new ArrayList();
1742 } catch (ParseException e) {
1743 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. An expression expected after a comma in argument list";
1745 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1746 errorEnd = SimpleCharStream.getPosition() + 1;
1751 Expression[] arguments = new Expression[list.size()];
1752 list.toArray(arguments);
1757 * A Statement without break.
1759 Statement StatementNoBreak() :
1761 final Statement statement;
1766 statement = Expression()
1769 } catch (ParseException e) {
1770 if (e.currentToken.next.kind != PHPParserConstants.PHPEND) {
1771 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. A ';' was expected";
1773 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1774 errorEnd = SimpleCharStream.getPosition() + 1;
1780 statement = LabeledStatement() {return statement;}
1781 | statement = Block() {return statement;}
1782 | statement = EmptyStatement() {return statement;}
1783 | statement = StatementExpression()
1786 } catch (ParseException e) {
1787 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. A ';' was expected";
1789 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1790 errorEnd = SimpleCharStream.getPosition() + 1;
1794 | statement = SwitchStatement() {return statement;}
1795 | statement = IfStatement() {return statement;}
1796 | statement = WhileStatement() {return statement;}
1797 | statement = DoStatement() {return statement;}
1798 | statement = ForStatement() {return statement;}
1799 | statement = ForeachStatement() {return statement;}
1800 | statement = ContinueStatement() {return statement;}
1801 | statement = ReturnStatement() {return statement;}
1802 | statement = EchoStatement() {return statement;}
1803 | [token=<AT>] statement = IncludeStatement()
1804 {if (token != null) {
1805 ((InclusionStatement)statement).silent = true;
1808 | statement = StaticStatement() {return statement;}
1809 | statement = GlobalStatement() {return statement;}
1813 * A Normal statement.
1815 Statement Statement() :
1817 final Statement statement;
1820 statement = StatementNoBreak() {return statement;}
1821 | statement = BreakStatement() {return statement;}
1825 * An html block inside a php syntax.
1827 HTMLBlock htmlBlock() :
1829 final int startIndex = nodePtr;
1830 AstNode[] blockNodes;
1834 <PHPEND> (phpEchoBlock())*
1836 (<PHPSTARTLONG> | <PHPSTARTSHORT>)
1837 } catch (ParseException e) {
1838 errorMessage = "End of file unexpected, '<?php' expected";
1840 errorStart = SimpleCharStream.getPosition();
1841 errorEnd = SimpleCharStream.getPosition();
1845 nbNodes = nodePtr - startIndex;
1846 blockNodes = new AstNode[nbNodes];
1847 System.arraycopy(nodes,startIndex,blockNodes,0,nbNodes);
1848 nodePtr = startIndex;
1849 return new HTMLBlock(blockNodes);}
1853 * An include statement. It's "include" an expression;
1855 InclusionStatement IncludeStatement() :
1857 final Expression expr;
1859 final int pos = SimpleCharStream.getPosition();
1860 final InclusionStatement inclusionStatement;
1863 ( <REQUIRE> {keyword = InclusionStatement.REQUIRE;}
1864 | <REQUIRE_ONCE> {keyword = InclusionStatement.REQUIRE_ONCE;}
1865 | <INCLUDE> {keyword = InclusionStatement.INCLUDE;}
1866 | <INCLUDE_ONCE> {keyword = InclusionStatement.INCLUDE_ONCE;})
1869 } catch (ParseException e) {
1870 if (errorMessage != null) {
1873 errorMessage = "unexpected token '"+ e.currentToken.next.image+"', expression expected";
1875 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1876 errorEnd = SimpleCharStream.getPosition() + 1;
1879 {inclusionStatement = new InclusionStatement(currentSegment,
1883 currentSegment.add(inclusionStatement);
1887 } catch (ParseException e) {
1888 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. A ';' was expected";
1890 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1891 errorEnd = SimpleCharStream.getPosition() + 1;
1894 {return inclusionStatement;}
1897 PrintExpression PrintExpression() :
1899 final Expression expr;
1900 final int pos = SimpleCharStream.getPosition();
1903 <PRINT> expr = Expression() {return new PrintExpression(expr,pos,SimpleCharStream.getPosition());}
1906 ListExpression ListExpression() :
1909 Expression expression = null;
1910 ArrayList list = new ArrayList();
1911 final int pos = SimpleCharStream.getPosition();
1917 } catch (ParseException e) {
1918 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', '(' expected";
1920 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1921 errorEnd = SimpleCharStream.getPosition() + 1;
1925 expr = VariableDeclaratorId()
1928 {if (expr == null) list.add(null);}
1932 } catch (ParseException e) {
1933 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', ',' expected";
1935 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1936 errorEnd = SimpleCharStream.getPosition() + 1;
1939 expr = VariableDeclaratorId()
1944 } catch (ParseException e) {
1945 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"', ')' expected";
1947 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1948 errorEnd = SimpleCharStream.getPosition() + 1;
1951 [ <ASSIGN> expression = Expression()
1953 String[] strings = new String[list.size()];
1954 list.toArray(strings);
1955 return new ListExpression(strings,
1958 SimpleCharStream.getPosition());}
1961 String[] strings = new String[list.size()];
1962 list.toArray(strings);
1963 return new ListExpression(strings,pos,SimpleCharStream.getPosition());}
1967 * An echo statement.
1968 * echo anyexpression (, otherexpression)*
1970 EchoStatement EchoStatement() :
1972 final ArrayList expressions = new ArrayList();
1974 final int pos = SimpleCharStream.getPosition();
1977 <ECHO> expr = Expression()
1978 {expressions.add(expr);}
1980 <COMMA> expr = Expression()
1981 {expressions.add(expr);}
1985 } catch (ParseException e) {
1986 if (e.currentToken.next.kind != 4) {
1987 errorMessage = "';' expected after 'echo' statement";
1989 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
1990 errorEnd = SimpleCharStream.getPosition() + 1;
1994 {Expression[] exprs = new Expression[expressions.size()];
1995 expressions.toArray(exprs);
1996 return new EchoStatement(exprs,pos);}
1999 GlobalStatement GlobalStatement() :
2001 final int pos = SimpleCharStream.getPosition();
2003 ArrayList vars = new ArrayList();
2004 GlobalStatement global;
2008 expr = VariableDeclaratorId()
2011 expr = VariableDeclaratorId()
2017 String[] strings = new String[vars.size()];
2018 vars.toArray(strings);
2019 global = new GlobalStatement(currentSegment,
2022 SimpleCharStream.getPosition());
2023 currentSegment.add(global);
2025 } catch (ParseException e) {
2026 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. a ';' was expected";
2028 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2029 errorEnd = SimpleCharStream.getPosition() + 1;
2034 StaticStatement StaticStatement() :
2036 final int pos = SimpleCharStream.getPosition();
2037 final ArrayList vars = new ArrayList();
2038 VariableDeclaration expr;
2041 <STATIC> expr = VariableDeclarator() {vars.add(new String(expr.name));}
2042 (<COMMA> expr = VariableDeclarator() {vars.add(new String(expr.name));})*
2046 String[] strings = new String[vars.size()];
2047 vars.toArray(strings);
2048 return new StaticStatement(strings,
2050 SimpleCharStream.getPosition());}
2051 } catch (ParseException e) {
2052 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. a ';' was expected";
2054 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2055 errorEnd = SimpleCharStream.getPosition() + 1;
2060 LabeledStatement LabeledStatement() :
2062 final int pos = SimpleCharStream.getPosition();
2064 final Statement statement;
2067 label = <IDENTIFIER> <COLON> statement = Statement()
2068 {return new LabeledStatement(label.image.toCharArray(),statement,pos,SimpleCharStream.getPosition());}
2080 final int pos = SimpleCharStream.getPosition();
2081 final ArrayList list = new ArrayList();
2082 Statement statement;
2087 } catch (ParseException e) {
2088 errorMessage = "'{' expected";
2090 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2091 errorEnd = SimpleCharStream.getPosition() + 1;
2094 ( statement = BlockStatement() {list.add(statement);}
2095 | statement = htmlBlock() {list.add(statement);})*
2098 } catch (ParseException e) {
2099 errorMessage = "unexpected token : '"+ e.currentToken.image +"', '}' expected";
2101 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2102 errorEnd = SimpleCharStream.getPosition() + 1;
2106 Statement[] statements = new Statement[list.size()];
2107 list.toArray(statements);
2108 return new Block(statements,pos,SimpleCharStream.getPosition());}
2111 Statement BlockStatement() :
2113 final Statement statement;
2117 statement = Statement() {if (phpDocument == currentSegment) pushOnAstNodes(statement);
2119 } catch (ParseException e) {
2120 errorMessage = "statement expected";
2122 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2123 errorEnd = SimpleCharStream.getPosition() + 1;
2126 | statement = ClassDeclaration() {return statement;}
2127 | statement = MethodDeclaration() {if (phpDocument == currentSegment) pushOnAstNodes(statement);
2132 * A Block statement that will not contain any 'break'
2134 Statement BlockStatementNoBreak() :
2136 final Statement statement;
2139 statement = StatementNoBreak() {return statement;}
2140 | statement = ClassDeclaration() {return statement;}
2141 | statement = MethodDeclaration() {return statement;}
2144 VariableDeclaration[] LocalVariableDeclaration() :
2146 final ArrayList list = new ArrayList();
2147 VariableDeclaration var;
2150 var = LocalVariableDeclarator()
2152 ( <COMMA> var = LocalVariableDeclarator() {list.add(var);})*
2154 VariableDeclaration[] vars = new VariableDeclaration[list.size()];
2159 VariableDeclaration LocalVariableDeclarator() :
2161 final String varName;
2162 Expression initializer = null;
2163 final int pos = SimpleCharStream.getPosition();
2166 varName = VariableDeclaratorId() [ <ASSIGN> initializer = Expression() ]
2168 if (initializer == null) {
2169 return new VariableDeclaration(currentSegment,
2170 varName.toCharArray(),
2172 SimpleCharStream.getPosition());
2174 return new VariableDeclaration(currentSegment,
2175 varName.toCharArray(),
2181 EmptyStatement EmptyStatement() :
2187 {pos = SimpleCharStream.getPosition();
2188 return new EmptyStatement(pos-1,pos);}
2191 Statement StatementExpression() :
2193 Expression expr,expr2;
2197 expr = PreIncDecExpression() {return expr;}
2199 expr = PrimaryExpression()
2200 [ <INCR> {return new PostfixedUnaryExpression(expr,
2201 OperatorIds.PLUS_PLUS,
2202 SimpleCharStream.getPosition());}
2203 | <DECR> {return new PostfixedUnaryExpression(expr,
2204 OperatorIds.MINUS_MINUS,
2205 SimpleCharStream.getPosition());}
2206 | operator = AssignmentOperator() expr2 = Expression()
2207 {return new BinaryExpression(expr,expr2,operator);}
2212 SwitchStatement SwitchStatement() :
2214 final Expression variable;
2215 final AbstractCase[] cases;
2216 final int pos = SimpleCharStream.getPosition();
2222 } catch (ParseException e) {
2223 errorMessage = "'(' expected after 'switch'";
2225 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2226 errorEnd = SimpleCharStream.getPosition() + 1;
2230 variable = Expression()
2231 } catch (ParseException e) {
2232 if (errorMessage != null) {
2235 errorMessage = "expression expected";
2237 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2238 errorEnd = SimpleCharStream.getPosition() + 1;
2243 } catch (ParseException e) {
2244 errorMessage = "')' expected";
2246 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2247 errorEnd = SimpleCharStream.getPosition() + 1;
2250 (cases = switchStatementBrace() | cases = switchStatementColon(pos, pos + 6))
2251 {return new SwitchStatement(variable,cases,pos,SimpleCharStream.getPosition());}
2254 AbstractCase[] switchStatementBrace() :
2257 final ArrayList cases = new ArrayList();
2261 ( cas = switchLabel0() {cases.add(cas);})*
2265 AbstractCase[] abcase = new AbstractCase[cases.size()];
2266 cases.toArray(abcase);
2268 } catch (ParseException e) {
2269 errorMessage = "'}' expected";
2271 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2272 errorEnd = SimpleCharStream.getPosition() + 1;
2277 * A Switch statement with : ... endswitch;
2278 * @param start the begin offset of the switch
2279 * @param end the end offset of the switch
2281 AbstractCase[] switchStatementColon(final int start, final int end) :
2284 final ArrayList cases = new ArrayList();
2289 setMarker(fileToParse,
2290 "Ugly syntax detected, you should switch () {...} instead of switch (): ... enswitch;",
2294 "Line " + token.beginLine);
2295 } catch (CoreException e) {
2296 PHPeclipsePlugin.log(e);
2298 ( cas = switchLabel0() {cases.add(cas);})*
2301 } catch (ParseException e) {
2302 errorMessage = "'endswitch' expected";
2304 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2305 errorEnd = SimpleCharStream.getPosition() + 1;
2311 AbstractCase[] abcase = new AbstractCase[cases.size()];
2312 cases.toArray(abcase);
2314 } catch (ParseException e) {
2315 errorMessage = "';' expected after 'endswitch' keyword";
2317 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2318 errorEnd = SimpleCharStream.getPosition() + 1;
2323 AbstractCase switchLabel0() :
2325 final Expression expr;
2326 Statement statement;
2327 final ArrayList stmts = new ArrayList();
2328 final int pos = SimpleCharStream.getPosition();
2331 expr = SwitchLabel()
2332 ( statement = BlockStatementNoBreak() {stmts.add(statement);}
2333 | statement = htmlBlock() {stmts.add(statement);})*
2334 [ statement = BreakStatement() {stmts.add(statement);}]
2336 Statement[] stmtsArray = new Statement[stmts.size()];
2337 stmts.toArray(stmtsArray);
2338 if (expr == null) {//it's a default
2339 return new DefaultCase(stmtsArray,pos,SimpleCharStream.getPosition());
2341 return new Case(expr,stmtsArray,pos,SimpleCharStream.getPosition());}
2346 * case Expression() :
2348 * @return the if it was a case and null if not
2350 Expression SwitchLabel() :
2352 final Expression expr;
2358 } catch (ParseException e) {
2359 if (errorMessage != null) throw e;
2360 errorMessage = "expression expected after 'case' keyword";
2362 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2363 errorEnd = SimpleCharStream.getPosition() + 1;
2369 } catch (ParseException e) {
2370 errorMessage = "':' expected after case expression";
2372 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2373 errorEnd = SimpleCharStream.getPosition() + 1;
2381 } catch (ParseException e) {
2382 errorMessage = "':' expected after 'default' keyword";
2384 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2385 errorEnd = SimpleCharStream.getPosition() + 1;
2390 Break BreakStatement() :
2392 Expression expression = null;
2393 final int start = SimpleCharStream.getPosition();
2396 <BREAK> [ expression = Expression() ]
2399 } catch (ParseException e) {
2400 errorMessage = "';' expected after 'break' keyword";
2402 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2403 errorEnd = SimpleCharStream.getPosition() + 1;
2406 {return new Break(expression, start, SimpleCharStream.getPosition());}
2409 IfStatement IfStatement() :
2411 final int pos = SimpleCharStream.getPosition();
2412 Expression condition;
2413 IfStatement ifStatement;
2416 <IF> condition = Condition("if") ifStatement = IfStatement0(condition, pos,pos+2)
2417 {return ifStatement;}
2421 Expression Condition(final String keyword) :
2423 final Expression condition;
2428 } catch (ParseException e) {
2429 errorMessage = "'(' expected after " + keyword + " keyword";
2431 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length();
2432 errorEnd = errorStart +1;
2433 processParseException(e);
2435 condition = Expression()
2438 } catch (ParseException e) {
2439 errorMessage = "')' expected after " + keyword + " keyword";
2441 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2442 errorEnd = SimpleCharStream.getPosition() + 1;
2443 processParseException(e);
2448 IfStatement IfStatement0(Expression condition, final int start,final int end) :
2450 Statement statement;
2452 final Statement[] statementsArray;
2453 ElseIf elseifStatement;
2454 Else elseStatement = null;
2456 final ArrayList elseIfList = new ArrayList();
2458 int pos = SimpleCharStream.getPosition();
2463 {stmts = new ArrayList();}
2464 ( statement = Statement() {stmts.add(statement);}
2465 | statement = htmlBlock() {stmts.add(statement);})*
2466 {endStatements = SimpleCharStream.getPosition();}
2467 (elseifStatement = ElseIfStatementColon() {elseIfList.add(elseifStatement);})*
2468 [elseStatement = ElseStatementColon()]
2471 setMarker(fileToParse,
2472 "Ugly syntax detected, you should if () {...} instead of if (): ... endif;",
2476 "Line " + token.beginLine);
2477 } catch (CoreException e) {
2478 PHPeclipsePlugin.log(e);
2482 } catch (ParseException e) {
2483 errorMessage = "'endif' expected";
2485 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2486 errorEnd = SimpleCharStream.getPosition() + 1;
2491 } catch (ParseException e) {
2492 errorMessage = "';' expected after 'endif' keyword";
2494 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2495 errorEnd = SimpleCharStream.getPosition() + 1;
2499 elseIfs = new ElseIf[elseIfList.size()];
2500 elseIfList.toArray(elseIfs);
2501 if (stmts.size() == 1) {
2502 return new IfStatement(condition,
2503 (Statement) stmts.get(0),
2507 SimpleCharStream.getPosition());
2509 statementsArray = new Statement[stmts.size()];
2510 stmts.toArray(statementsArray);
2511 return new IfStatement(condition,
2512 new Block(statementsArray,pos,endStatements),
2516 SimpleCharStream.getPosition());
2521 (stmt = Statement() | stmt = htmlBlock())
2522 ( LOOKAHEAD(1) elseifStatement = ElseIfStatement() {elseIfList.add(elseifStatement);})*
2526 {pos = SimpleCharStream.getPosition();}
2527 statement = Statement()
2528 {elseStatement = new Else(statement,pos,SimpleCharStream.getPosition());}
2529 } catch (ParseException e) {
2530 if (errorMessage != null) {
2533 errorMessage = "unexpected token '"+e.currentToken.next.image+"', a statement was expected";
2535 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2536 errorEnd = SimpleCharStream.getPosition() + 1;
2541 elseIfs = new ElseIf[elseIfList.size()];
2542 elseIfList.toArray(elseIfs);
2543 return new IfStatement(condition,
2548 SimpleCharStream.getPosition());}
2551 ElseIf ElseIfStatementColon() :
2553 Expression condition;
2554 Statement statement;
2555 final ArrayList list = new ArrayList();
2556 final int pos = SimpleCharStream.getPosition();
2559 <ELSEIF> condition = Condition("elseif")
2560 <COLON> ( statement = Statement() {list.add(statement);}
2561 | statement = htmlBlock() {list.add(statement);})*
2563 Statement[] stmtsArray = new Statement[list.size()];
2564 list.toArray(stmtsArray);
2565 return new ElseIf(condition,stmtsArray ,pos,SimpleCharStream.getPosition());}
2568 Else ElseStatementColon() :
2570 Statement statement;
2571 final ArrayList list = new ArrayList();
2572 final int pos = SimpleCharStream.getPosition();
2575 <ELSE> <COLON> ( statement = Statement() {list.add(statement);}
2576 | statement = htmlBlock() {list.add(statement);})*
2578 Statement[] stmtsArray = new Statement[list.size()];
2579 list.toArray(stmtsArray);
2580 return new Else(stmtsArray,pos,SimpleCharStream.getPosition());}
2583 ElseIf ElseIfStatement() :
2585 Expression condition;
2586 Statement statement;
2587 final ArrayList list = new ArrayList();
2588 final int pos = SimpleCharStream.getPosition();
2591 <ELSEIF> condition = Condition("elseif") statement = Statement() {list.add(statement);/*todo:do better*/}
2593 Statement[] stmtsArray = new Statement[list.size()];
2594 list.toArray(stmtsArray);
2595 return new ElseIf(condition,stmtsArray,pos,SimpleCharStream.getPosition());}
2598 WhileStatement WhileStatement() :
2600 final Expression condition;
2601 final Statement action;
2602 final int pos = SimpleCharStream.getPosition();
2606 condition = Condition("while")
2607 action = WhileStatement0(pos,pos + 5)
2608 {return new WhileStatement(condition,action,pos,SimpleCharStream.getPosition());}
2611 Statement WhileStatement0(final int start, final int end) :
2613 Statement statement;
2614 final ArrayList stmts = new ArrayList();
2615 final int pos = SimpleCharStream.getPosition();
2618 <COLON> (statement = Statement() {stmts.add(statement);})*
2620 setMarker(fileToParse,
2621 "Ugly syntax detected, you should while () {...} instead of while (): ... endwhile;",
2625 "Line " + token.beginLine);
2626 } catch (CoreException e) {
2627 PHPeclipsePlugin.log(e);
2631 } catch (ParseException e) {
2632 errorMessage = "'endwhile' expected";
2634 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2635 errorEnd = SimpleCharStream.getPosition() + 1;
2641 Statement[] stmtsArray = new Statement[stmts.size()];
2642 stmts.toArray(stmtsArray);
2643 return new Block(stmtsArray,pos,SimpleCharStream.getPosition());}
2644 } catch (ParseException e) {
2645 errorMessage = "';' expected after 'endwhile' keyword";
2647 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2648 errorEnd = SimpleCharStream.getPosition() + 1;
2652 statement = Statement()
2656 DoStatement DoStatement() :
2658 final Statement action;
2659 final Expression condition;
2660 final int pos = SimpleCharStream.getPosition();
2663 <DO> action = Statement() <WHILE> condition = Condition("while")
2666 {return new DoStatement(condition,action,pos,SimpleCharStream.getPosition());}
2667 } catch (ParseException e) {
2668 errorMessage = "unexpected token : '"+ e.currentToken.next.image +"'. A ';' was expected";
2670 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2671 errorEnd = SimpleCharStream.getPosition() + 1;
2676 ForeachStatement ForeachStatement() :
2678 Statement statement;
2679 Expression expression;
2680 final int pos = SimpleCharStream.getPosition();
2681 ArrayVariableDeclaration variable;
2687 } catch (ParseException e) {
2688 errorMessage = "'(' expected after 'foreach' keyword";
2690 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2691 errorEnd = SimpleCharStream.getPosition() + 1;
2695 expression = Expression()
2696 } catch (ParseException e) {
2697 errorMessage = "variable expected";
2699 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2700 errorEnd = SimpleCharStream.getPosition() + 1;
2705 } catch (ParseException e) {
2706 errorMessage = "'as' expected";
2708 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2709 errorEnd = SimpleCharStream.getPosition() + 1;
2713 variable = ArrayVariable()
2714 } catch (ParseException e) {
2715 errorMessage = "variable expected";
2717 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2718 errorEnd = SimpleCharStream.getPosition() + 1;
2723 } catch (ParseException e) {
2724 errorMessage = "')' expected after 'foreach' keyword";
2726 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2727 errorEnd = SimpleCharStream.getPosition() + 1;
2731 statement = Statement()
2732 } catch (ParseException e) {
2733 if (errorMessage != null) throw e;
2734 errorMessage = "statement expected";
2736 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2737 errorEnd = SimpleCharStream.getPosition() + 1;
2740 {return new ForeachStatement(expression,
2744 SimpleCharStream.getPosition());}
2748 ForStatement ForStatement() :
2751 final int pos = SimpleCharStream.getPosition();
2752 Statement[] initializations = null;
2753 Expression condition = null;
2754 Statement[] increments = null;
2756 final ArrayList list = new ArrayList();
2757 final int startBlock, endBlock;
2763 } catch (ParseException e) {
2764 errorMessage = "'(' expected after 'for' keyword";
2766 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2767 errorEnd = SimpleCharStream.getPosition() + 1;
2770 [ initializations = ForInit() ] <SEMICOLON>
2771 [ condition = Expression() ] <SEMICOLON>
2772 [ increments = StatementExpressionList() ] <RPAREN>
2774 action = Statement()
2775 {return new ForStatement(initializations,condition,increments,action,pos,SimpleCharStream.getPosition());}
2778 {startBlock = SimpleCharStream.getPosition();}
2779 (action = Statement() {list.add(action);})*
2782 setMarker(fileToParse,
2783 "Ugly syntax detected, you should for () {...} instead of for (): ... endfor;",
2785 pos+token.image.length(),
2787 "Line " + token.beginLine);
2788 } catch (CoreException e) {
2789 PHPeclipsePlugin.log(e);
2792 {endBlock = SimpleCharStream.getPosition();}
2795 } catch (ParseException e) {
2796 errorMessage = "'endfor' expected";
2798 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2799 errorEnd = SimpleCharStream.getPosition() + 1;
2805 Statement[] stmtsArray = new Statement[list.size()];
2806 list.toArray(stmtsArray);
2807 return new ForStatement(initializations,condition,increments,new Block(stmtsArray,startBlock,endBlock),pos,SimpleCharStream.getPosition());}
2808 } catch (ParseException e) {
2809 errorMessage = "';' expected after 'endfor' keyword";
2811 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2812 errorEnd = SimpleCharStream.getPosition() + 1;
2818 Statement[] ForInit() :
2820 Statement[] statements;
2823 LOOKAHEAD(LocalVariableDeclaration())
2824 statements = LocalVariableDeclaration()
2825 {return statements;}
2827 statements = StatementExpressionList()
2828 {return statements;}
2831 Statement[] StatementExpressionList() :
2833 final ArrayList list = new ArrayList();
2837 expr = StatementExpression() {list.add(expr);}
2838 (<COMMA> StatementExpression() {list.add(expr);})*
2840 Statement[] stmtsArray = new Statement[list.size()];
2841 list.toArray(stmtsArray);
2845 Continue ContinueStatement() :
2847 Expression expr = null;
2848 final int pos = SimpleCharStream.getPosition();
2851 <CONTINUE> [ expr = Expression() ]
2854 {return new Continue(expr,pos,SimpleCharStream.getPosition());}
2855 } catch (ParseException e) {
2856 errorMessage = "';' expected after 'continue' statement";
2858 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2859 errorEnd = SimpleCharStream.getPosition() + 1;
2864 ReturnStatement ReturnStatement() :
2866 Expression expr = null;
2867 final int pos = SimpleCharStream.getPosition();
2870 <RETURN> [ expr = Expression() ]
2873 {return new ReturnStatement(expr,pos,SimpleCharStream.getPosition());}
2874 } catch (ParseException e) {
2875 errorMessage = "';' expected after 'return' statement";
2877 errorStart = SimpleCharStream.getPosition() - e.currentToken.next.image.length() + 1;
2878 errorEnd = SimpleCharStream.getPosition() + 1;