X-Git-Url: http://secure.phpeclipse.com diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/FastJavaPartitionScanner.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/FastJavaPartitionScanner.java index 41246b6..559dc88 100644 --- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/FastJavaPartitionScanner.java +++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/FastJavaPartitionScanner.java @@ -1,156 +1,188 @@ +/******************************************************************************* + * Copyright (c) 2000, 2004 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Common Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/cpl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ package net.sourceforge.phpdt.internal.ui.text; -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved. - */ +import net.sourceforge.phpeclipse.ui.text.rules.AbstractPartitioner; +import org.eclipse.jface.text.Assert; import org.eclipse.jface.text.IDocument; import org.eclipse.jface.text.rules.ICharacterScanner; import org.eclipse.jface.text.rules.IPartitionTokenScanner; import org.eclipse.jface.text.rules.IToken; import org.eclipse.jface.text.rules.Token; - /** - * This scanner recognizes the JavaDoc comments, Java multi line comments, Java single line comments, - * Java strings and Java characters. + * This scanner recognizes the JavaDoc comments, Java multi line comments, Java + * single line comments, Java strings. */ -public class FastJavaPartitionScanner implements IPartitionTokenScanner { - - private final static String SKIP= "__skip"; //$NON-NLS-1$ - public final static String JAVA_STRING= "__php_string"; //$NON-NLS-1$ - public final static String JAVA_SINGLE_LINE_COMMENT= "__php_singleline_comment"; //$NON-NLS-1$ - public final static String JAVA_MULTI_LINE_COMMENT= "__php_multiline_comment"; //$NON-NLS-1$ - public final static String JAVA_DOC= "__php_phpdoc"; //$NON-NLS-1$ +public class FastJavaPartitionScanner implements IPartitionTokenScanner, IPHPPartitions { // states - private static final int JAVA= 0; - private static final int SINGLE_LINE_COMMENT= 1; - private static final int MULTI_LINE_COMMENT= 2; - private static final int JAVADOC= 3; - private static final int CHARACTER= 4; - private static final int STRING= 5; - + private static final int PHP = 0; + + private static final int SINGLE_LINE_COMMENT = 1; + + private static final int MULTI_LINE_COMMENT = 2; + + private static final int PHPDOC = 3; + + private static final int STRING_DQ = 4; + + private static final int STRING_SQ = 5; + + private static final int STRING_HEREDOC = 6; + // beginning of prefixes and postfixes - private static final int NONE= 0; - private static final int BACKSLASH= 1; // postfix for STRING and CHARACTER - private static final int SLASH= 2; // prefix for SINGLE_LINE or MULTI_LINE or JAVADOC - private static final int SLASH_STAR= 3; // prefix for MULTI_LINE_COMMENT or JAVADOC - private static final int SLASH_STAR_STAR= 4; // prefix for MULTI_LINE_COMMENT or JAVADOC - private static final int STAR= 5; // postfix for MULTI_LINE_COMMENT or JAVADOC - private static final int CARRIAGE_RETURN=6; // postfix for STRING, CHARACTER and SINGLE_LINE_COMMENT - + private static final int NONE = 0; + + private static final int BACKSLASH = 1; // postfix for STRING_DQ and CHARACTER + + private static final int SLASH = 2; // prefix for SINGLE_LINE or MULTI_LINE or + // JAVADOC + + private static final int SLASH_STAR = 3; // prefix for MULTI_LINE_COMMENT or + // JAVADOC + + private static final int SLASH_STAR_STAR = 4; // prefix for MULTI_LINE_COMMENT + // or JAVADOC + + private static final int STAR = 5; // postfix for MULTI_LINE_COMMENT or + // JAVADOC + + private static final int CARRIAGE_RETURN = 6; // postfix for STRING_DQ, + // CHARACTER and + // SINGLE_LINE_COMMENT + + // private static final int HEREDOC = 7; + /** The scanner. */ -// private final BufferedRuleBasedScanner fScanner= new BufferedRuleBasedScanner(1000); - private final BufferedDocumentScanner fScanner= new BufferedDocumentScanner(1000); // faster implementation - + private final BufferedDocumentScanner fScanner = new BufferedDocumentScanner(1000); // faster + // implementation + /** The offset of the last returned token. */ private int fTokenOffset; + /** The length of the last returned token. */ private int fTokenLength; - - /** The state of the scanner. */ + + /** The state of the scanner. */ private int fState; + /** The last significant characters read. */ private int fLast; + /** The amount of characters already read on first call to nextToken(). */ private int fPrefixLength; - + // emulate JavaPartitionScanner - private static final boolean fgEmulate= false; + private boolean fEmulate = false; + private int fJavaOffset; + private int fJavaLength; - - private final IToken[] fTokens= new IToken[] { - new Token(null), - new Token(JAVA_SINGLE_LINE_COMMENT), - new Token(JAVA_MULTI_LINE_COMMENT), - new Token(JAVA_DOC), - new Token(SKIP), - new Token(JAVA_STRING) - }; + + private final IToken[] fTokens = new IToken[] { new Token(null), new Token(PHP_SINGLELINE_COMMENT), + new Token(PHP_MULTILINE_COMMENT), new Token(PHP_PHPDOC_COMMENT), new Token(PHP_STRING_DQ), new Token(PHP_STRING_SQ), + new Token(PHP_STRING_HEREDOC) }; + + public FastJavaPartitionScanner(boolean emulate) { + fEmulate = emulate; + } + + public FastJavaPartitionScanner() { + this(false); + } /* * @see org.eclipse.jface.text.rules.ITokenScanner#nextToken() */ public IToken nextToken() { - + // emulate JavaPartitionScanner - if (fgEmulate) { + if (fEmulate) { if (fJavaOffset != -1 && fTokenOffset + fTokenLength != fJavaOffset + fJavaLength) { - fTokenOffset += fTokenLength; - return fTokens[JAVA]; + fTokenOffset += fTokenLength; + return fTokens[PHP]; } else { - fJavaOffset= -1; - fJavaLength= 0; + fJavaOffset = -1; + fJavaLength = 0; } - } + } fTokenOffset += fTokenLength; - fTokenLength= fPrefixLength; + fTokenLength = fPrefixLength; while (true) { - final int ch= fScanner.read(); - + final int ch = fScanner.read(); + // characters - switch (ch) { - case ICharacterScanner.EOF: - if (fTokenLength > 0) { - fLast= NONE; // ignore last - return preFix(fState, JAVA, NONE, 0); - - } else { - fLast= NONE; - fPrefixLength= 0; + switch (ch) { + case ICharacterScanner.EOF: + if (fTokenLength > 0) { + fLast = NONE; // ignore last + return preFix(fState, PHP, NONE, 0); + + } else { + fLast = NONE; + fPrefixLength = 0; return Token.EOF; - } + } - case '\r': - // emulate JavaPartitionScanner - if (!fgEmulate && fLast != CARRIAGE_RETURN) { - fLast= CARRIAGE_RETURN; - fTokenLength++; - continue; + case '\r': + // emulate JavaPartitionScanner + if (!fEmulate && fLast != CARRIAGE_RETURN) { + fLast = CARRIAGE_RETURN; + fTokenLength++; + continue; + + } else { - } else { - switch (fState) { case SINGLE_LINE_COMMENT: - case CHARACTER: - case STRING: + // case CHARACTER: + // case STRING_DQ: + // case STRING_SQ: if (fTokenLength > 0) { - IToken token= fTokens[fState]; - - // emulate JavaPartitionScanner - if (fgEmulate) { + IToken token = fTokens[fState]; + + // emulate JavaPartitionScanner + if (fEmulate) { fTokenLength++; - fLast= NONE; - fPrefixLength= 0; - } else { - fLast= CARRIAGE_RETURN; - fPrefixLength= 1; + fLast = NONE; + fPrefixLength = 0; + } else { + fLast = CARRIAGE_RETURN; + fPrefixLength = 1; } - - fState= JAVA; + + fState = PHP; return token; } else { consume(); - continue; + continue; } default: consume(); continue; - } - } - - case '\n': + } + } + + case '\n': switch (fState) { case SINGLE_LINE_COMMENT: - case CHARACTER: - case STRING: + // case CHARACTER: + // case STRING_DQ: + // case STRING_SQ: // assert(fTokenLength > 0); return postFix(fState); @@ -159,90 +191,115 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { continue; } + case '?': + if (fState == SINGLE_LINE_COMMENT) { + int nextch = fScanner.read(); + if (nextch == '>') { + //

This is an example.

+ fTokenLength--; + fScanner.unread(); + fScanner.unread(); + return postFix(fState); + } + else { + // bug #1404228: Crash on + fScanner.unread(); + } + } + default: - if (!fgEmulate && fLast == CARRIAGE_RETURN) { + if (!fEmulate && fLast == CARRIAGE_RETURN) { switch (fState) { case SINGLE_LINE_COMMENT: - case CHARACTER: - case STRING: - + // case CHARACTER: + // case STRING_DQ: + // case STRING_SQ: int last; int newState; switch (ch) { case '/': - last= SLASH; - newState= JAVA; + last = SLASH; + newState = PHP; break; case '*': - last= STAR; - newState= JAVA; + last = STAR; + newState = PHP; break; - + case '\'': - last= NONE; - newState= CHARACTER; + last = NONE; + newState = STRING_SQ; break; case '"': - last= NONE; - newState= STRING; + last = NONE; + newState = STRING_DQ; break; case '\r': - last= CARRIAGE_RETURN; - newState= JAVA; + last = CARRIAGE_RETURN; + newState = PHP; break; case '\\': - last= BACKSLASH; - newState= JAVA; + last = BACKSLASH; + newState = PHP; break; default: - last= NONE; - newState= JAVA; + last = NONE; + newState = PHP; break; } - - fLast= NONE; // ignore fLast + + fLast = NONE; // ignore fLast return preFix(fState, newState, last, 1); - + default: break; } } } - // states - switch (fState) { - case JAVA: + // states + switch (fState) { + case PHP: switch (ch) { + case '#': + if (fTokenLength > 0) { + return preFix(PHP, SINGLE_LINE_COMMENT, NONE, 1); + } else { + preFix(PHP, SINGLE_LINE_COMMENT, NONE, 1); + fTokenOffset += fTokenLength; + fTokenLength = fPrefixLength; + break; + } case '/': if (fLast == SLASH) { if (fTokenLength - getLastLength(fLast) > 0) { - return preFix(JAVA, SINGLE_LINE_COMMENT, NONE, 2); - } else { - preFix(JAVA, SINGLE_LINE_COMMENT, NONE, 2); + return preFix(PHP, SINGLE_LINE_COMMENT, NONE, 2); + } else { + preFix(PHP, SINGLE_LINE_COMMENT, NONE, 2); fTokenOffset += fTokenLength; - fTokenLength= fPrefixLength; + fTokenLength = fPrefixLength; break; } - + } else { fTokenLength++; - fLast= SLASH; + fLast = SLASH; break; } - + case '*': if (fLast == SLASH) { if (fTokenLength - getLastLength(fLast) > 0) - return preFix(JAVA, MULTI_LINE_COMMENT, SLASH_STAR, 2); + return preFix(PHP, MULTI_LINE_COMMENT, SLASH_STAR, 2); else { - preFix(JAVA, MULTI_LINE_COMMENT, SLASH_STAR, 2); + preFix(PHP, MULTI_LINE_COMMENT, SLASH_STAR, 2); fTokenOffset += fTokenLength; - fTokenLength= fPrefixLength; + fTokenLength = fPrefixLength; break; } @@ -250,48 +307,48 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { consume(); break; } - + case '\'': - fLast= NONE; // ignore fLast + fLast = NONE; // ignore fLast if (fTokenLength > 0) - return preFix(JAVA, CHARACTER, NONE, 1); - else { - preFix(JAVA, CHARACTER, NONE, 1); + return preFix(PHP, STRING_SQ, NONE, 1); + else { + preFix(PHP, STRING_SQ, NONE, 1); fTokenOffset += fTokenLength; - fTokenLength= fPrefixLength; + fTokenLength = fPrefixLength; break; } case '"': - fLast= NONE; // ignore fLast + fLast = NONE; // ignore fLast if (fTokenLength > 0) - return preFix(JAVA, STRING, NONE, 1); + return preFix(PHP, STRING_DQ, NONE, 1); else { - preFix(JAVA, STRING, NONE, 1); + preFix(PHP, STRING_DQ, NONE, 1); fTokenOffset += fTokenLength; - fTokenLength= fPrefixLength; + fTokenLength = fPrefixLength; break; } - + default: consume(); break; } break; - - case SINGLE_LINE_COMMENT: + + case SINGLE_LINE_COMMENT: consume(); break; - - case JAVADOC: + + case PHPDOC: switch (ch) { case '/': switch (fLast) { case SLASH_STAR_STAR: return postFix(MULTI_LINE_COMMENT); - + case STAR: - return postFix(JAVADOC); + return postFix(PHPDOC); default: consume(); @@ -301,7 +358,7 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { case '*': fTokenLength++; - fLast= STAR; + fLast = STAR; break; default: @@ -309,20 +366,20 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { break; } break; - - case MULTI_LINE_COMMENT: + + case MULTI_LINE_COMMENT: switch (ch) { case '*': if (fLast == SLASH_STAR) { - fLast= SLASH_STAR_STAR; + fLast = SLASH_STAR_STAR; fTokenLength++; - fState= JAVADOC; + fState = PHPDOC; } else { fTokenLength++; - fLast= STAR; + fLast = STAR; } break; - + case '/': if (fLast == STAR) { return postFix(MULTI_LINE_COMMENT); @@ -330,59 +387,79 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { consume(); break; } - + default: consume(); - break; + break; } break; - - case STRING: - switch (ch) { - case '\\': - fLast= (fLast == BACKSLASH) ? NONE : BACKSLASH; + + case STRING_DQ: + switch (ch) { + case '\\': + fLast = (fLast == BACKSLASH) ? NONE : BACKSLASH; fTokenLength++; break; - - case '\"': - if (fLast != BACKSLASH) { - return postFix(STRING); - } else { + case '\"': + if (fLast != BACKSLASH) { + return postFix(STRING_DQ); + + } else { consume(); - break; - } - - default: + break; + } + + default: consume(); - break; - } - break; - - case CHARACTER: - switch (ch) { + break; + } + break; + case STRING_SQ: + switch (ch) { case '\\': - fLast= (fLast == BACKSLASH) ? NONE : BACKSLASH; + fLast = (fLast == BACKSLASH) ? NONE : BACKSLASH; fTokenLength++; break; - - case '\'': - if (fLast != BACKSLASH) { - return postFix(CHARACTER); - - } else { + + case '\'': + if (fLast != BACKSLASH) { + return postFix(STRING_SQ); + + } else { consume(); - break; - } - - default: + break; + } + + default: consume(); - break; - } - break; - } - } - } + break; + } + break; + // case CHARACTER: + // switch (ch) { + // case '\\': + // fLast= (fLast == BACKSLASH) ? NONE : BACKSLASH; + // fTokenLength++; + // break; + // + // case '\'': + // if (fLast != BACKSLASH) { + // return postFix(CHARACTER); + // + // } else { + // consume(); + // break; + // } + // + // default: + // consume(); + // break; + // } + // break; + } + } + } private static final int getLastLength(int last) { switch (last) { @@ -391,7 +468,7 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { case NONE: return 0; - + case CARRIAGE_RETURN: case BACKSLASH: case SLASH: @@ -403,40 +480,40 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { case SLASH_STAR_STAR: return 3; - } + } } private final void consume() { fTokenLength++; - fLast= NONE; + fLast = NONE; } - + private final IToken postFix(int state) { fTokenLength++; - fLast= NONE; - fState= JAVA; - fPrefixLength= 0; + fLast = NONE; + fState = PHP; + fPrefixLength = 0; return fTokens[state]; } private final IToken preFix(int state, int newState, int last, int prefixLength) { // emulate JavaPartitionScanner - if (fgEmulate && state == JAVA && (fTokenLength - getLastLength(fLast) > 0)) { + if (fEmulate && state == PHP && (fTokenLength - getLastLength(fLast) > 0)) { fTokenLength -= getLastLength(fLast); - fJavaOffset= fTokenOffset; - fJavaLength= fTokenLength; - fTokenLength= 1; - fState= newState; - fPrefixLength= prefixLength; - fLast= last; + fJavaOffset = fTokenOffset; + fJavaLength = fTokenLength; + fTokenLength = 1; + fState = newState; + fPrefixLength = prefixLength; + fLast = last; return fTokens[state]; } else { fTokenLength -= getLastLength(fLast); - fLast= last; - fPrefixLength= prefixLength; - IToken token= fTokens[state]; - fState= newState; + fLast = last; + fPrefixLength = prefixLength; + IToken token = fTokens[state]; + fState = newState; return token; } } @@ -444,49 +521,56 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { private static int getState(String contentType) { if (contentType == null) - return JAVA; + return PHP; - else if (contentType.equals(JAVA_SINGLE_LINE_COMMENT)) + else if (contentType.equals(PHP_SINGLELINE_COMMENT)) return SINGLE_LINE_COMMENT; - else if (contentType.equals(JAVA_MULTI_LINE_COMMENT)) + else if (contentType.equals(PHP_MULTILINE_COMMENT)) return MULTI_LINE_COMMENT; - else if (contentType.equals(JAVA_DOC)) - return JAVADOC; + else if (contentType.equals(PHP_PHPDOC_COMMENT)) + return PHPDOC; + + else if (contentType.equals(PHP_STRING_DQ)) + return STRING_DQ; - else if (contentType.equals(JAVA_STRING)) - return STRING; + else if (contentType.equals(PHP_STRING_SQ)) + return STRING_SQ; + + else if (contentType.equals(PHP_STRING_HEREDOC)) + return STRING_HEREDOC; + + // else if (contentType.equals(JAVA_CHARACTER)) + // return CHARACTER; - else if (contentType.equals(SKIP)) - return CHARACTER; - else - return JAVA; + return PHP; } /* - * @see IPartitionTokenScanner#setPartialRange(IDocument, int, int, String, int) + * @see IPartitionTokenScanner#setPartialRange(IDocument, int, int, String, + * int) */ public void setPartialRange(IDocument document, int offset, int length, String contentType, int partitionOffset) { - fScanner.setRange(document, offset, length); - fTokenOffset= partitionOffset; - fTokenLength= 0; - fPrefixLength= offset - partitionOffset; - fLast= NONE; - + setRange(document, offset, length); + fTokenOffset = partitionOffset; + fTokenLength = 0; + fPrefixLength = offset - partitionOffset; + fLast = NONE; + if (offset == partitionOffset) { // restart at beginning of partition - fState= JAVA; + fState = PHP; } else { - fState= getState(contentType); + fState = getState(contentType); } // emulate JavaPartitionScanner - if (fgEmulate) { - fJavaOffset= -1; - fJavaLength= 0; + if (fEmulate) { + fJavaOffset = -1; + fJavaLength = 0; } } @@ -494,18 +578,17 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { * @see ITokenScanner#setRange(IDocument, int, int) */ public void setRange(IDocument document, int offset, int length) { - fScanner.setRange(document, offset, length); - fTokenOffset= offset; - fTokenLength= 0; - fPrefixLength= 0; - fLast= NONE; - fState= JAVA; + fTokenOffset = offset; + fTokenLength = 0; + fPrefixLength = 0; + fLast = NONE; + fState = PHP; // emulate JavaPartitionScanner - if (fgEmulate) { - fJavaOffset= -1; - fJavaLength= 0; + if (fEmulate) { + fJavaOffset = -1; + fJavaLength = 0; } } @@ -520,7 +603,10 @@ public class FastJavaPartitionScanner implements IPartitionTokenScanner { * @see ITokenScanner#getTokenOffset() */ public int getTokenOffset() { + if (AbstractPartitioner.DEBUG) { + Assert.isTrue(fTokenOffset >= 0, Integer.toString(fTokenOffset)); + } return fTokenOffset; } -} +} \ No newline at end of file