/*******************************************************************************
* 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
*******************************************************************************/
import net.sourceforge.phpeclipse.ui.text.rules.AbstractPartitioner;
-import org.eclipse.jface.text.Assert;
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.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.RuleBasedPartitionScanner;
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 {
-
- // states
- 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 CHARACTER= 4;
-
- // 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
-
- /** The scanner. */
- 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. */
- 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 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) };
-
- 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;
- }
-
- 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;
- }
+public class FastJavaPartitionScanner implements IPartitionTokenScanner,
+ IPHPPartitions {
+
+ // states
+
+ private static enum PartState {
+ PHP,
+ SINGLE_LINE_COMMENT,
+ MULTI_LINE_COMMENT,
+ PHPDOC,
+ STRING_DQ,
+ STRING_SQ,
+ STRING_HEREDOC,
+ };
+
+ private static enum ScanState {
+ NONE,
+ BACKSLASH, // postfix for STRING_DQ and CHARACTER
+ SLASH, // prefix for SINGLE_LINE or MULTI_LINE or JAVADOC
+ SLASH_STAR, // prefix for MULTI_LINE_COMMENT or JAVADOC
+ SLASH_STAR_STAR, // prefix for MULTI_LINE_COMMENT or JAVADOC
+ STAR, // postfix for MULTI_LINE_COMMENT or JAVADOC
+ CARRIAGE_RETURN, // postfix for STRING_DQ, CHARACTER and SINGLE_LINE_COMMENT
+ LESS, // Found a '<'
+ LESS_LESS, // Found a '<<'
+ LESS_LESS_LESS, // Found a '<<<'
+ HEREDOC_ID, // Found a '<<<' and scanning ID (till and of id, which is a ' ')
+ HEREDOC, // Found a '<<<' and ID
+ HEREDOC_ID_END, // Searching the heredoc end ID
+ };
+
+ /** The heredoc ID string */
+ private String fHeredocId;
+
+ /** The possible heredoc ID string which is read right after a new line. Ends with a ';' and should
+ * match the heredoc ID string fHeredocId
+ */
+ private String fHeredocIdEnd;
+
+ /** The scanner. */
+ 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. */
+ private PartState fState;
+
+ /** The last significant characters read. */
+ private ScanState fLast;
+
+ /** The amount of characters already read on first call to nextToken(). */
+ private int fPrefixLength;
+
+ // 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);
+ }
+
+ /**
+ * Emulate JavaPartitionScanner
+ *
+ * @see org.eclipse.jface.text.rules.ITokenScanner#nextToken()
+ */
+ public IToken nextToken() {
+ if (fEmulate) {
+ if ((fJavaOffset != -1) && (fTokenOffset + fTokenLength != fJavaOffset + fJavaLength)) {
+ fTokenOffset += fTokenLength;
+
+ return fTokens[PartState.PHP.ordinal()];
+ }
+ else {
+ fJavaOffset = -1;
+ fJavaLength = 0;
+ }
+ }
+
+ fTokenOffset += fTokenLength; // The new token offset is the offset of the previous partition + length of previous partition
+ fTokenLength = fPrefixLength; // The new partition is at least the length of the start of the new partition
+
+ while (true) {
+ final int ch = fScanner.read();
+
+ switch (ch) {
+ case ICharacterScanner.EOF:
+ if (fTokenLength > 0) {
+ fLast = ScanState.NONE; // ignore last
+ return preFix (fState, PartState.PHP, ScanState.NONE, 0);
+ }
+ else {
+ fLast = ScanState.NONE;
+ fPrefixLength = 0;
+ return Token.EOF;
+ }
+
+ case '\r': // Found a carriage return
+ // emulate JavaPartitionScanner
+ if (!fEmulate && (fLast != ScanState.CARRIAGE_RETURN)) {
+ fLast = ScanState.CARRIAGE_RETURN; // Set to what we currently found
+ fTokenLength++; // and count the partition length
+
+ continue; // Go for the next character to read
+ }
+ else {
+ switch (fState) {
+ case SINGLE_LINE_COMMENT:
+ if (fTokenLength > 0) {
+ IToken token = fTokens[fState.ordinal()];
+
+ // emulate JavaPartitionScanner
+ if (fEmulate) {
+ fTokenLength++;
+ fLast = ScanState.NONE;
+ fPrefixLength = 0;
+ }
+ else {
+ fLast = ScanState.CARRIAGE_RETURN;
+ fPrefixLength = 1;
+ }
+
+ fState = PartState.PHP;
+ return token;
+ }
+ else {
+ consume();
+ continue;
+ }
+
+ default:
+ consume();
+ continue;
+ }
+ }
+
+ case '\n': // Found a line feed
+ switch (fState) {
+ case SINGLE_LINE_COMMENT: // If we running within a single line comment,
+ return postFix (fState); // this is the end my friend
+
+ case STRING_HEREDOC: // If we running within a heredoc string
+ fTokenLength++; // Count the character
+ fLast = ScanState.CARRIAGE_RETURN; // and state is still new line
+ continue;
+
+ default: // If running anywhere else than on a single line comment
+ consume(); // count the length of the current partition
+ continue;
+ }
+
+ case '?':
+ if (fState == PartState.SINGLE_LINE_COMMENT) {
+ int nextch = fScanner.read();
+
+ if (nextch == '>') {
+ // <h1>This is an <?php # echo 'simple' ?> example.</h1>
+ fTokenLength--;
+ fScanner.unread();
+ fScanner.unread();
+
+ return postFix (fState);
+ }
+ else {
+ // bug #1404228: Crash on <?php // comment ?>
+ if (nextch != ICharacterScanner.EOF) {
+ fScanner.unread();
+ }
+ }
+ }
+
+ default:
+ if (!fEmulate && (fLast == ScanState.CARRIAGE_RETURN)) {
+ switch (fState) {
+ case SINGLE_LINE_COMMENT:
+ // case CHARACTER:
+ // case STRING_DQ:
+ // case STRING_SQ:
+ ScanState last;
+ PartState newState;
+
+ switch (ch) {
+ case '/':
+ last = ScanState.SLASH;
+ newState = PartState.PHP;
+ break;
+
+ case '*':
+ last = ScanState.STAR;
+ newState = PartState.PHP;
+ break;
+
+ case '\'':
+ last = ScanState.NONE;
+ newState = PartState.STRING_SQ;
+ break;
+
+ case '"':
+ last = ScanState.NONE;
+ newState = PartState.STRING_DQ;
+ break;
+
+ case '\r':
+ last = ScanState.CARRIAGE_RETURN;
+ newState = PartState.PHP;
+ break;
+
+ case '\\':
+ last = ScanState.BACKSLASH;
+ newState = PartState.PHP;
+ break;
+
+ default:
+ last = ScanState.NONE;
+ newState = PartState.PHP;
+ break;
+ }
+
+ fLast = ScanState.NONE; // ignore fLast
+ return preFix (fState, newState, last, 1);
+
+ default:
+ break;
+ }
+ }
+ }
+
+ // states
+ switch (fState) {
+ case PHP:
+ switch (ch) {
+ case '#': // Start of a single line comment
+ if (fTokenLength > 0) {
+ return preFix (PartState.PHP, PartState.SINGLE_LINE_COMMENT, ScanState.NONE, 1);
+ }
+ else {
+ preFix (PartState.PHP, PartState.SINGLE_LINE_COMMENT, ScanState.NONE, 1);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ break;
+
+ case '<':
+ if (fLast == ScanState.LESS) {
+ fTokenLength++;
+ fLast = ScanState.LESS_LESS;
+ }
+ else if (fLast == ScanState.LESS_LESS) {
+ if (fTokenLength - getLastLength(fLast) > 0) { // this is the start of a single line comment
+ return preFix (PartState.PHP, PartState.STRING_HEREDOC, ScanState.LESS_LESS_LESS, 3);
+ }
+ else {
+ preFix (PartState.PHP, PartState.STRING_HEREDOC, ScanState.LESS_LESS_LESS, 3);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ }
+ else {
+ fTokenLength++;
+ fLast = ScanState.LESS;
+ }
+ break;
+
+ case '/': // Start of single line comment?
+ if (fLast == ScanState.SLASH) { // If previous character was already a slash,
+ if (fTokenLength - getLastLength(fLast) > 0) { // this is the start of a single line comment
+ return preFix (PartState.PHP, PartState.SINGLE_LINE_COMMENT, ScanState.NONE, 2);
+ }
+ else {
+ preFix (PartState.PHP, PartState.SINGLE_LINE_COMMENT, ScanState.NONE, 2);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ }
+ else {
+ fTokenLength++;
+ fLast = ScanState.SLASH; // We currently found a slash
+ }
+ break;
+
+ case '*':
+ if (fLast == ScanState.SLASH) { // If previous character was a slash
+ if (fTokenLength - getLastLength (fLast) > 0) { // this is the start of a comment /*
+ return preFix (PartState.PHP, PartState.MULTI_LINE_COMMENT, ScanState.SLASH_STAR, 2);
+ }
+ else {
+ preFix (PartState.PHP, PartState.MULTI_LINE_COMMENT, ScanState.SLASH_STAR, 2);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ }
+ else { // No slash before the '*', so it's a normal character
+ consume ();
+ }
+ break;
+
+ case '\'': // The start of a single quoted string
+ fLast = ScanState.NONE; // ignore fLast
+
+ if (fTokenLength > 0) {
+ return preFix (PartState.PHP, PartState.STRING_SQ, ScanState.NONE, 1);
+ }
+ else {
+ preFix (PartState.PHP, PartState.STRING_SQ, ScanState.NONE, 1);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ break;
+
+ case '"': // The start of a double quoted string
+ fLast = ScanState.NONE; // ignore fLast
+
+ if (fTokenLength > 0) {
+ return preFix (PartState.PHP, PartState.STRING_DQ, ScanState.NONE, 1);
+ }
+ else {
+ preFix (PartState.PHP, PartState.STRING_DQ, ScanState.NONE, 1);
+ fTokenOffset += fTokenLength;
+ fTokenLength = fPrefixLength;
+ }
+ break;
+
+ default: // Just a normal character with no special meaning
+ consume ();
+ break;
+ }
+ break;
+
+ case SINGLE_LINE_COMMENT: // We are just running within a single line comment (started with // or #)
+ consume();
+ break;
+
+ case PHPDOC: // We are just running within a php doc comment
+ switch (ch) {
+ case '/':
+ switch (fLast) {
+ case SLASH_STAR_STAR:
+ return postFix (PartState.MULTI_LINE_COMMENT);
+
+ case STAR:
+ return postFix (PartState.PHPDOC); // Found the end of the php doc (multi line) comment
+
+ default:
+ consume();
+ break;
+ }
+ break;
+
+ case '*': // Found a '*'
+ fTokenLength++;
+ fLast = ScanState.STAR; // Remember that we found a '*'
+ break;
+
+ default:
+ consume();
+ break;
+ }
+ break;
+
+ case MULTI_LINE_COMMENT: // We are currently running through a (possible) multi line comment
+ switch (ch) {
+ case '*': // and we found a '*'
+ if (fLast == ScanState.SLASH_STAR) { // If the previous characters have been a /*
+ fLast = ScanState.SLASH_STAR_STAR;
+ fTokenLength++;
+ fState = PartState.PHPDOC;
+ }
+ else {
+ fTokenLength++;
+ fLast = ScanState.STAR;
+ }
+ break;
+
+ case '/':
+ if (fLast == ScanState.STAR) {
+ return postFix (PartState.MULTI_LINE_COMMENT);
+ }
+ else {
+ consume();
+ break;
+ }
+
+ default:
+ consume();
+ break;
+ }
+ break;
+
+ case STRING_DQ:
+ switch (ch) {
+ case '\\':
+ fLast = (fLast == ScanState.BACKSLASH) ? ScanState.NONE : ScanState.BACKSLASH;
+ fTokenLength++;
+ break;
+
+ case '\"':
+ if (fLast != ScanState.BACKSLASH) {
+ return postFix (PartState.STRING_DQ);
+ }
+ else {
+ consume();
+ }
+ break;
+
+ default:
+ consume();
+ break;
+ }
+ break;
+
+ case STRING_SQ:
+ switch (ch) {
+ case '\\':
+ fLast = (fLast == ScanState.BACKSLASH) ? ScanState.NONE : ScanState.BACKSLASH;
+ fTokenLength++;
+ break;
+
+ case '\'':
+ if (fLast != ScanState.BACKSLASH) {
+ return postFix (PartState.STRING_SQ);
+ }
+ else {
+ consume();
+ }
+ break;
+
+ default:
+ consume();
+ break;
+ }
+ break;
+
+ case STRING_HEREDOC: // We are just running within a heredoc string
+ switch (fLast) {
+ case LESS_LESS_LESS: // The first time after we recognized the '<<<'
+ fLast = ScanState.HEREDOC_ID; // We do a scan of the heredoc id string
+ fHeredocId = "";
+ fHeredocId += (char) ch;
+ fTokenLength++;
+ break;
+
+ case HEREDOC_ID: // Scan the starting heredoc ID
+ if (ch == ' ') {
+ fLast = ScanState.HEREDOC;
+ fTokenLength++;
+ }
+ else {
+ fHeredocId += (char) ch;
+ fTokenLength++;
+ }
+ break;
+
+ case CARRIAGE_RETURN: // We previously found a new line
+ fTokenLength++;
+ fHeredocIdEnd = "";
+ fHeredocIdEnd += (char) ch; // Add the first character to the (possible) end ID
+ fLast = ScanState.HEREDOC_ID_END; // Go for scanning the (possible) end ID
+ break;
+
+ case HEREDOC_ID_END: // We scan the (possible) end ID
+ if (ch == ';') { // End ID ends with an ';'
+ if (fHeredocId.compareTo (fHeredocIdEnd) == 0) { // If start ID and end ID matches.
+ return postFix (PartState.STRING_HEREDOC); // It's the end of a heredoc partition
+ }
+ else {
+ consume (); // Wrong end ID, so just eat the character
+ }
+ }
+ else {
+ fTokenLength++; //
+ fHeredocIdEnd += (char) ch; // Add the characther to the possible heredoc end ID
+ }
+ break;
+
+ default: // Normally state NONE
+ consume (); // Eat the character
+ break;
+ }
+ break;
+ } // end of switch (fState)
+ }
+ }
+
+ private static final int getLastLength (ScanState last) {
+ switch (last) {
+ default:
+ return -1;
+
+ case NONE:
+ return 0;
+
+ case LESS:
+ case CARRIAGE_RETURN:
+ case BACKSLASH:
+ case SLASH:
+ case STAR:
+ return 1;
+
+ case LESS_LESS:
+ case SLASH_STAR:
+ return 2;
+
+ case SLASH_STAR_STAR:
+ return 3;
+
+ case HEREDOC:
+ return 3;
+ }
+ }
+
+ private final void consume() {
+ fTokenLength++; // Count the character
+ fLast = ScanState.NONE; // Reset scanner state to nothing special
+ }
+
+ /**
+ * If we found the end of a partition, return the type of the partition which is currently finished
+ *
+ * @param state The type of partition we found the end for
+ * @return
+ */
+ private final IToken postFix (PartState state) {
+ fTokenLength++;
+ fLast = ScanState.NONE; // Reset the scanner state
+ fState = PartState.PHP; // The type of the next partition is just PHP
+ fPrefixLength = 0; // and have no prefix length
+
+ return fTokens[state.ordinal()]; // Return the type of partition for which we found the end
+ }
+
+ /**
+ * If we find the prefix of a new partition, return the type of the previous partition
+ *
+ * @param state
+ * @param newState
+ * @param last
+ * @param prefixLength
+ * @return
+ */
+ private final IToken preFix (PartState oldState, PartState newState, ScanState last, int prefixLength) {
+ if (fEmulate && // If we are in emulation run
+ (oldState == PartState.PHP) &&
+ (fTokenLength - getLastLength (fLast) > 0)) {
+
+ fTokenLength -= getLastLength (fLast);
+ fJavaOffset = fTokenOffset;
+ fJavaLength = fTokenLength;
+ fTokenLength = 1;
+ fState = newState;
+ fPrefixLength = prefixLength;
+ fLast = last;
+
+ return fTokens[oldState.ordinal()];
+ }
+ else {
+ fTokenLength -= getLastLength (fLast); // Set the length of the last token (partition)
+ fLast = last; // Remember the type of the type of the last partition
+ fPrefixLength = prefixLength; // Remember the length of the currently found start of new partition
+ fState = newState; // The type of the new partition we found
+
+ IToken token = fTokens[oldState.ordinal()]; // Return the type of the old partition
+
+ return token;
+ }
+ }
+
+ private static PartState getState (String contentType) {
+ if (contentType == null)
+ return PartState.PHP;
+
+ else if (contentType.equals (PHP_SINGLELINE_COMMENT))
+ return PartState.SINGLE_LINE_COMMENT;
+
+ else if (contentType.equals (PHP_MULTILINE_COMMENT))
+ return PartState.MULTI_LINE_COMMENT;
+
+ else if (contentType.equals (PHP_PHPDOC_COMMENT))
+ return PartState.PHPDOC;
+
+ else if (contentType.equals (PHP_STRING_DQ))
+ return PartState.STRING_DQ;
+
+ else if (contentType.equals (PHP_STRING_SQ))
+ return PartState.STRING_SQ;
+
+ else if (contentType.equals (PHP_STRING_HEREDOC))
+ return PartState.STRING_HEREDOC;
+
+ else
+ return PartState.PHP;
+ }
+
+ /**
+ * @see IPartitionTokenScanner#setPartialRange (IDocument, int, int, String, int)
+ *
+ * @note Because of the PHP heredoc syntax we need to parse from the beginning of a heredoc partition,
+ * and not from anywhere in the middle. When not reading the start of the heredoc (and the correct heredoc start ID,
+ * we can't recognize the correct heredoc end ID. So we start if possible form the partitionOffset.
+ *
+ */
+ public void setPartialRange (IDocument document, int offset, int length, String contentType, int partitionOffset) {
+ if (partitionOffset >= 0) {
+ fScanner.setRange (document, partitionOffset, length + (offset - partitionOffset));
+
+ fTokenOffset = partitionOffset;
+ fTokenLength = 0;
+ fPrefixLength = 0;
+ fLast = ScanState.NONE;
+ fState = PartState.PHP; // restart at beginning of partition
+ }
+ else {
+ fScanner.setRange (document, offset, length);
+
+ fTokenOffset = partitionOffset;
+ fTokenLength = 0;
+ fPrefixLength = offset - partitionOffset;
+ fLast = ScanState.NONE;
+
+ if (offset == partitionOffset) {
+ fState = PartState.PHP; // restart at beginning of partition
+ }
+ 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 = ScanState.NONE;
+ fState = PartState.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;
+ }
}
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git://secure.phpeclipse.com / phpeclipse.git / blobdiff