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 ec8321f..8653b77 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 @@ -1,10 +1,10 @@ /******************************************************************************* * Copyright (c) 2000, 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials + * 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 *******************************************************************************/ @@ -20,560 +20,613 @@ 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. + * This scanner recognizes the JavaDoc comments, Java multi line comments, Java + * single line comments, Java strings. */ -public class FastJavaPartitionScanner implements IPartitionTokenScanner, IPHPPartitions { +public class FastJavaPartitionScanner implements IPartitionTokenScanner, + IPHPPartitions { - // states - private static final int PHP = 0; + // states + private static final int PHP = 0; - private static final int SINGLE_LINE_COMMENT = 1; + private static final int SINGLE_LINE_COMMENT = 1; - private static final int MULTI_LINE_COMMENT = 2; + private static final int MULTI_LINE_COMMENT = 2; - private static final int PHPDOC = 3; + private static final int PHPDOC = 3; - private static final int STRING_DQ = 4; + private static final int STRING_DQ = 4; - private static final int STRING_SQ = 5; + private static final int STRING_SQ = 5; - // private static final int CHARACTER= 4; + private static final int STRING_HEREDOC = 6; - // beginning of prefixes and postfixes - private static final int NONE = 0; + // 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 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 = 2; // prefix for SINGLE_LINE or MULTI_LINE + // or - private static final int SLASH_STAR = 3; // prefix for MULTI_LINE_COMMENT or JAVADOC + // JAVADOC - private static final int SLASH_STAR_STAR = 4; // prefix for MULTI_LINE_COMMENT or JAVADOC + private static final int SLASH_STAR = 3; // prefix for MULTI_LINE_COMMENT + // or - private static final int STAR = 5; // postfix for MULTI_LINE_COMMENT or JAVADOC + // JAVADOC - private static final int CARRIAGE_RETURN = 6; // postfix for STRING, CHARACTER and SINGLE_LINE_COMMENT + private static final int SLASH_STAR_STAR = 4; // prefix for + // MULTI_LINE_COMMENT - /** The scanner. */ - private final BufferedDocumentScanner fScanner = new BufferedDocumentScanner(1000); // faster implementation + // or JAVADOC - /** The offset of the last returned token. */ - private int fTokenOffset; + private static final int STAR = 5; // postfix for MULTI_LINE_COMMENT or - /** The length of the last returned token. */ - private int fTokenLength; + // JAVADOC - /** The state of the scanner. */ - private int fState; + private static final int CARRIAGE_RETURN = 6; // postfix for STRING_DQ, - /** The last significant characters read. */ - private int fLast; + // CHARACTER and + // SINGLE_LINE_COMMENT - /** The amount of characters already read on first call to nextToken(). */ - private int fPrefixLength; + // private static final int HEREDOC = 7; - // emulate JavaPartitionScanner - private boolean fEmulate = false; + /** The scanner. */ + private final BufferedDocumentScanner fScanner = new BufferedDocumentScanner( + 1000); // faster - private int fJavaOffset; + // implementation - private int fJavaLength; + /** The offset of the last returned token. */ + private int fTokenOffset; - 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) }; + /** The length of the last returned token. */ + private int fTokenLength; - public FastJavaPartitionScanner(boolean emulate) { - fEmulate = emulate; - } + /** The state of the scanner. */ + private int fState; - public FastJavaPartitionScanner() { - this(false); - } + /** The last significant characters read. */ + private int fLast; - /* - * @see org.eclipse.jface.text.rules.ITokenScanner#nextToken() - */ - public IToken nextToken() { + /** The amount of characters already read on first call to nextToken(). */ + private int fPrefixLength; - // emulate JavaPartitionScanner - if (fEmulate) { - if (fJavaOffset != -1 && fTokenOffset + fTokenLength != fJavaOffset + fJavaLength) { - fTokenOffset += fTokenLength; - return fTokens[PHP]; - } else { - fJavaOffset = -1; - fJavaLength = 0; - } - } - - fTokenOffset += fTokenLength; - fTokenLength = fPrefixLength; - - while (true) { - final int ch = fScanner.read(); - - // characters - 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 (!fEmulate && fLast != CARRIAGE_RETURN) { - fLast = CARRIAGE_RETURN; - fTokenLength++; - continue; - - } else { - - switch (fState) { - case SINGLE_LINE_COMMENT: - // case CHARACTER: - // case STRING_DQ: - // case STRING_SQ: - if (fTokenLength > 0) { - IToken token = fTokens[fState]; - - // emulate JavaPartitionScanner - if (fEmulate) { - fTokenLength++; - fLast = NONE; - fPrefixLength = 0; - } else { - fLast = CARRIAGE_RETURN; - fPrefixLength = 1; - } - - fState = PHP; - return token; - - } else { - consume(); - continue; - } - - default: - consume(); - continue; - } - } - - case '\n': - switch (fState) { - case SINGLE_LINE_COMMENT: - // case CHARACTER: - // case STRING_DQ: - // case STRING_SQ: - // assert(fTokenLength > 0); - return postFix(fState); - - default: - consume(); - continue; - } - - default: - if (!fEmulate && fLast == CARRIAGE_RETURN) { - switch (fState) { - case SINGLE_LINE_COMMENT: - // case CHARACTER: - // case STRING_DQ: - // case STRING_SQ: - int last; - int newState; - switch (ch) { - case '/': - last = SLASH; - newState = PHP; - break; - - case '*': - last = STAR; - newState = PHP; - break; - - case '\'': - last = NONE; - newState = STRING_SQ; - break; - - case '"': - last = NONE; - newState = STRING_DQ; - break; - - case '\r': - last = CARRIAGE_RETURN; - newState = PHP; - break; - - case '\\': - last = BACKSLASH; - newState = PHP; - break; - - default: - last = NONE; - newState = PHP; - break; - } - - fLast = NONE; // ignore fLast - return preFix(fState, newState, last, 1); - - default: - break; - } - } - } - - // 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(PHP, SINGLE_LINE_COMMENT, NONE, 2); - } else { - preFix(PHP, SINGLE_LINE_COMMENT, NONE, 2); - fTokenOffset += fTokenLength; - fTokenLength = fPrefixLength; - break; - } - - } else { - fTokenLength++; - fLast = SLASH; - break; - } - - case '*': - if (fLast == SLASH) { - if (fTokenLength - getLastLength(fLast) > 0) - return preFix(PHP, MULTI_LINE_COMMENT, SLASH_STAR, 2); - else { - preFix(PHP, MULTI_LINE_COMMENT, SLASH_STAR, 2); - fTokenOffset += fTokenLength; - fTokenLength = fPrefixLength; - break; - } - - } else { - consume(); - break; - } - - case '\'': - fLast = NONE; // ignore fLast - if (fTokenLength > 0) - return preFix(PHP, STRING_SQ, NONE, 1); - else { - preFix(PHP, STRING_SQ, NONE, 1); - fTokenOffset += fTokenLength; - fTokenLength = fPrefixLength; - break; - } - - case '"': - fLast = NONE; // ignore fLast - if (fTokenLength > 0) - return preFix(PHP, STRING_DQ, NONE, 1); - else { - preFix(PHP, STRING_DQ, NONE, 1); - fTokenOffset += fTokenLength; - fTokenLength = fPrefixLength; - break; - } - - default: - consume(); - break; - } - break; - - case SINGLE_LINE_COMMENT: - consume(); - break; - - case PHPDOC: - switch (ch) { - case '/': - switch (fLast) { - case SLASH_STAR_STAR: - return postFix(MULTI_LINE_COMMENT); - - case STAR: - return postFix(PHPDOC); - - default: - consume(); - break; - } - break; - - case '*': - fTokenLength++; - fLast = STAR; - break; - - default: - consume(); - break; - } - break; - - case MULTI_LINE_COMMENT: - switch (ch) { - case '*': - if (fLast == SLASH_STAR) { - fLast = SLASH_STAR_STAR; - fTokenLength++; - fState = PHPDOC; - } else { - fTokenLength++; - fLast = STAR; - } - break; - - case '/': - if (fLast == STAR) { - return postFix(MULTI_LINE_COMMENT); - } else { - consume(); - break; - } - - default: - consume(); - break; - } - break; - - case STRING_DQ: - switch (ch) { - case '\\': - fLast = (fLast == BACKSLASH) ? NONE : BACKSLASH; - fTokenLength++; - break; - - case '\"': - if (fLast != BACKSLASH) { - return postFix(STRING_DQ); - - } else { - consume(); - break; - } - - default: - consume(); - break; - } - break; - case STRING_SQ: - switch (ch) { - case '\\': - fLast = (fLast == BACKSLASH) ? NONE : BACKSLASH; - fTokenLength++; - break; - - case '\'': - if (fLast != BACKSLASH) { - return postFix(STRING_SQ); - - } else { - consume(); - break; - } - - default: - consume(); - 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) { - default: - return -1; - - case NONE: - return 0; - - case CARRIAGE_RETURN: - case BACKSLASH: - case SLASH: - case STAR: - return 1; - - case SLASH_STAR: - return 2; - - case SLASH_STAR_STAR: - return 3; - } - } - - private final void consume() { - fTokenLength++; - fLast = NONE; - } - - private final IToken postFix(int state) { - fTokenLength++; - fLast = NONE; - fState = PHP; - fPrefixLength = 0; - return fTokens[state]; - } - - private final IToken preFix(int state, int newState, int last, int prefixLength) { - // emulate JavaPartitionScanner - if (fEmulate && state == PHP && (fTokenLength - getLastLength(fLast) > 0)) { - fTokenLength -= getLastLength(fLast); - 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; - return token; - } - } - - private static int getState(String contentType) { - - if (contentType == null) - return PHP; - - else if (contentType.equals(PHP_SINGLELINE_COMMENT)) - return SINGLE_LINE_COMMENT; - - else if (contentType.equals(PHP_MULTILINE_COMMENT)) - return MULTI_LINE_COMMENT; - - else if (contentType.equals(PHP_PHPDOC_COMMENT)) - return PHPDOC; - - else if (contentType.equals(PHP_STRING_DQ)) - return STRING_DQ; - else if (contentType.equals(PHP_STRING_SQ)) - return STRING_SQ; - // else if (contentType.equals(JAVA_CHARACTER)) - // return CHARACTER; - - else - return PHP; - } - - /* - * @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); - setRange(document, offset, length); - fTokenOffset = partitionOffset; - fTokenLength = 0; - fPrefixLength = offset - partitionOffset; - fLast = NONE; - - if (offset == partitionOffset) { - // restart at beginning of partition - fState = PHP; - } else { - fState = getState(contentType); - } - - // emulate JavaPartitionScanner - if (fEmulate) { - fJavaOffset = -1; - fJavaLength = 0; - } - } - - /* - * @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 = PHP; - - // emulate JavaPartitionScanner - if (fEmulate) { - fJavaOffset = -1; - fJavaLength = 0; - } - } - - /* - * @see ITokenScanner#getTokenLength() - */ - public int getTokenLength() { - return fTokenLength; - } - - /* - * @see ITokenScanner#getTokenOffset() - */ - public int getTokenOffset() { - if (AbstractPartitioner.DEBUG) { - Assert.isTrue(fTokenOffset >= 0, Integer.toString(fTokenOffset)); - } - return fTokenOffset; - } + // emulate JavaPartitionScanner + private boolean fEmulate = false; + + private int fJavaOffset; + + private int fJavaLength; + + 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 (fEmulate) { + if (fJavaOffset != -1 + && fTokenOffset + fTokenLength != fJavaOffset + fJavaLength) { + fTokenOffset += fTokenLength; + return fTokens[PHP]; + } else { + fJavaOffset = -1; + fJavaLength = 0; + } + } + + fTokenOffset += fTokenLength; + fTokenLength = fPrefixLength; + + while (true) { + final int ch = fScanner.read(); + + // characters + 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 (!fEmulate && fLast != CARRIAGE_RETURN) { + fLast = CARRIAGE_RETURN; + fTokenLength++; + continue; + + } else { + + switch (fState) { + case SINGLE_LINE_COMMENT: + // case CHARACTER: + // case STRING_DQ: + // case STRING_SQ: + if (fTokenLength > 0) { + IToken token = fTokens[fState]; + + // emulate JavaPartitionScanner + if (fEmulate) { + fTokenLength++; + fLast = NONE; + fPrefixLength = 0; + } else { + fLast = CARRIAGE_RETURN; + fPrefixLength = 1; + } + + fState = PHP; + return token; + + } else { + consume(); + continue; + } + + default: + consume(); + continue; + } + } + + case '\n': + switch (fState) { + case SINGLE_LINE_COMMENT: + // case CHARACTER: + // case STRING_DQ: + // case STRING_SQ: + // assert(fTokenLength > 0); + return postFix(fState); + + default: + consume(); + continue; + } + + case '?': + if (fState == SINGLE_LINE_COMMENT) { + int nextch = fScanner.read(); + if (nextch == '>') { + //