1) Moved net.sourceforge.phpeclipse.ui\src\net\sourceforge\phpdt back to net.sourcefo...

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / php / PHPWordExtractor.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPWordExtractor.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPWordExtractor.java
new file mode 100644 (file)
index 0000000..ed9b88c
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPWordExtractor.java
@@ -0,0 +1,77 @@
+/**********************************************************************
+ Copyright (c) 2000, 2002 IBM Corp. 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 implementation
+ www.phpeclipse.de
+ **********************************************************************/
+package net.sourceforge.phpeclipse.phpeditor.php;
+
+import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.swt.graphics.Point;
+
+/**
+ * Detects PHP words in documents.
+ */
+public class PHPWordExtractor {
+
+       /**
+        * Find the location of the word at offset in document.
+        * 
+        * @returns Point - x is the start position, y is the end position. Return
+        *          null if it is not found.
+        * @param document
+        *            the document being searched.
+        * @param offset -
+        *            the position to start searching from.
+        */
+       public static Point findWord(IDocument document, int offset) {
+
+               int start = -1;
+               int end = -1;
+
+               try {
+
+                       int position = offset;
+                       char character;
+
+                       while (position >= 0) {
+                               character = document.getChar(position);
+                               if (!Scanner.isPHPIdentifierPart(character)
+                                               && (character != '$'))
+                                       break;
+                               --position;
+                       }
+
+                       start = position;
+
+                       position = offset;
+                       int length = document.getLength();
+
+                       while (position < length) {
+                               character = document.getChar(position);
+                               if (!Scanner.isPHPIdentifierPart(character)
+                                               && (character != '$'))
+                                       break;
+                               ++position;
+                       }
+
+                       start++;
+                       end = position;
+
+                       if (end > start)
+                               return new Point(start, end - start);
+
+               } catch (BadLocationException x) {
+               }
+
+               return null;
+       }
+}