From: axelcl <axelcl>
Date: Tue, 3 May 2005 10:32:26 +0000 (+0000)
Subject: Improved PHP end tag (i.e. ?> ) syntax highlighting after operators
X-Git-Url: http://secure.phpeclipse.com

Improved PHP end tag (i.e. ?> ) syntax highlighting after operators
<?= is now syntax highlighted as PHP start token
---

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCodeScanner.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCodeScanner.java
index 452b3d3..294aa1d 100644
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCodeScanner.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCodeScanner.java
@@ -1,14 +1,14 @@
 /**********************************************************************
-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
-**********************************************************************/
+ 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 java.util.ArrayList;
@@ -36,85 +36,130 @@ import org.eclipse.jface.text.rules.WordRule;
  * PHP Code Scanner
  */
 public class PHPCodeScanner extends AbstractJavaScanner {
- 
+
   /**
    * Rule to detect java operators.
    * 
    * @since 3.0
    */
-	protected class OperatorRule implements IRule {
-	
-		/** Java operators */
-		private final char[] JAVA_OPERATORS= { ';', '(', ')', '.', '=', '/', '\\', '+', '-', '*', '[', ']', '<', '>', ':', '?', '!', ',', '|', '&', '^', '%', '~', '@'};
-		/** Token to return for this rule */
-		private final IToken fToken;
-		/** Token to return for braces */
-		private final IToken fTokenBraces;
-		/**
+  protected class OperatorRule implements IRule {
+
+    /** Java operators */
+    private final char[] PHP_OPERATORS = {
+        ';',
+        '(',
+        ')',
+        '.',
+        '=',
+        '/',
+        '\\',
+        '+',
+        '-',
+        '*',
+        '[',
+        ']',
+        '<',
+        '>',
+        ':',
+        '?',
+        '!',
+        ',',
+        '|',
+        '&',
+        '^',
+        '%',
+        '~',
+        '@' };
+
+    /** Token to return for this rule */
+    private final IToken fToken;
+
+    /** Token to return for braces */
+    private final IToken fTokenBraces;
+
+    /**
      * Creates a new operator rule.
      * 
      * @param token
      *          Token to use for this rule
      */
-		public OperatorRule(IToken token, IToken tokenBraces) {
-			fToken= token;
-			fTokenBraces= tokenBraces;
-			
-		}
-		
-		/**
+    public OperatorRule(IToken token, IToken tokenBraces) {
+      fToken = token;
+      fTokenBraces = tokenBraces;
+
+    }
+
+    /**
      * Is this character an operator character?
      * 
      * @param character
      *          Character to determine whether it is an operator character
-     * @return <code>true</code> iff the character is an operator,
-     *         <code>false</code> otherwise.
+     * @return <code>true</code> iff the character is an operator, <code>false</code> otherwise.
      */
-		public boolean isOperator(char character) {
-			for (int index= 0; index < JAVA_OPERATORS.length; index++) {
-				if (JAVA_OPERATORS[index] == character)
-					return true;
-			}
-			return false;
-		}
-	
-		/*
+    public boolean isOperator(char character) {
+      for (int index = 0; index < PHP_OPERATORS.length; index++) {
+        if (PHP_OPERATORS[index] == character)
+          return true;
+      }
+      return false;
+    }
+
+    /*
      * @see org.eclipse.jface.text.rules.IRule#evaluate(org.eclipse.jface.text.rules.ICharacterScanner)
      */
-		public IToken evaluate(ICharacterScanner scanner) {
-	
-			int character= scanner.read();
-			if (character=='{' || character=='}') {
-			  return fTokenBraces;
-			}
-			if (isOperator((char) character)) {
-			    int lastCharacter = character;
-			    character= scanner.read();
-			 	if (!isOperator((char) character)) {
-				  scanner.unread();
-			      return fToken;
-				}
-				if (lastCharacter=='<' && character=='?') {
-				  scanner.unread();
-				  scanner.unread();
-    			  return Token.UNDEFINED;
-				} else if (lastCharacter=='?' && character=='>') {
-				  scanner.unread();
-				  scanner.unread();
-    			  return Token.UNDEFINED;
-				} 
-				do {
-					character= scanner.read();
-				} while (isOperator((char) character));
-				scanner.unread();
-				return fToken;
-			} else {
-				scanner.unread();
-				return Token.UNDEFINED;
-			}
-		}
-	}
-	
+    public IToken evaluate(ICharacterScanner scanner) {
+
+      int character = scanner.read();
+      if (character == '{' || character == '}') {
+        return fTokenBraces;
+      }
+      if (isOperator((char) character)) {
+        int lastCharacter = character;
+        character = scanner.read();
+        if (!isOperator((char) character)) {
+          scanner.unread();
+          return fToken;
+        }
+        if (checkPHPTag(scanner, lastCharacter, character)) {
+          return Token.UNDEFINED;
+        }
+        do {
+          lastCharacter = character;
+          character = scanner.read();
+          if (checkPHPTag(scanner, lastCharacter, character)) {
+            return fToken;
+          }
+        } while (isOperator((char) character));
+        scanner.unread();
+        return fToken;
+      } else {
+        scanner.unread();
+        return Token.UNDEFINED;
+      }
+    }
+
+    /**
+     * Check if lastCharacter/character are a PHP start or end token ( &lt;? ... ?&gt; )
+     * 
+     * @param scanner
+     * @param lastCharacter
+     * @param character
+     * @return
+     */
+    private boolean checkPHPTag(ICharacterScanner scanner, int lastCharacter, int character) {
+      if (lastCharacter == '<' && character == '?') {
+        scanner.unread();
+        scanner.unread();
+        return true;
+      } else if (lastCharacter == '?' && character == '>') {
+        scanner.unread();
+        scanner.unread();
+        return true;
+      }
+      return false;
+    }
+  }
+
   private class PHPWordRule extends WordRule {
     private StringBuffer fBuffer = new StringBuffer();
 
@@ -137,6 +182,9 @@ public class PHPCodeScanner extends AbstractJavaScanner {
           return Token.UNDEFINED;
         } else {
           c = scanner.read();
+          if (c == '=') {  // <?=
+            return getToken(IPreferenceConstants.PHP_TAG);
+          }
           if (c != 'p' && c != 'P') {
             scanner.unread();
             return getToken(IPreferenceConstants.PHP_TAG);
@@ -161,10 +209,10 @@ public class PHPCodeScanner extends AbstractJavaScanner {
         }
       }
       if (c == '?') {
-		c = scanner.read();
+        c = scanner.read();
         if (c == '>') {
           return getToken(IPreferenceConstants.PHP_TAG);
-        } 
+        }
         scanner.unread();
         scanner.unread();
         return Token.UNDEFINED;
@@ -203,11 +251,10 @@ public class PHPCodeScanner extends AbstractJavaScanner {
 
   //private PHPColorProvider fColorProvider;
 
-  private static String[] fgTokenProperties =
-    {
+  private static String[] fgTokenProperties = {
       IPreferenceConstants.PHP_MULTILINE_COMMENT,
       IPreferenceConstants.PHP_SINGLELINE_COMMENT,
-	  IPreferenceConstants.PHP_TAG,
+      IPreferenceConstants.PHP_TAG,
       IPreferenceConstants.PHP_KEYWORD,
       IPreferenceConstants.PHP_FUNCTIONNAME,
       IPreferenceConstants.PHP_VARIABLE,
@@ -217,7 +264,8 @@ public class PHPCodeScanner extends AbstractJavaScanner {
       IPreferenceConstants.PHP_DEFAULT,
       IPreferenceConstants.PHP_OPERATOR,
       IPreferenceConstants.PHP_BRACE_OPERATOR,
-      IPreferenceConstants.PHP_KEYWORD_RETURN};
+      IPreferenceConstants.PHP_KEYWORD_RETURN };
+
   /**
    * Creates a PHP code scanner
    */
@@ -225,79 +273,6 @@ public class PHPCodeScanner extends AbstractJavaScanner {
   public PHPCodeScanner(IColorManager manager, IPreferenceStore store) {
     super(manager, store);
     initialize();
-    //  // final IPreferenceStore store =
-    // PHPeclipsePlugin.getDefault().getPreferenceStore();
-    //   Color BackgroundColor =
-    // provider.getColor(PreferenceConverter.getColor(store,
-    // PHP_EDITOR_BACKGROUND));
-    //    variable =
-    //      new Token(
-    //        new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_VARIABLE)),
-    //          BackgroundColor,
-    //          (store.getBoolean(PHP_VARIABLE_BOLD) ? SWT.BOLD : SWT.NONE)
-    //            + (store.getBoolean(PHP_VARIABLE_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      keyword =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_KEYWORD)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //   (store.getBoolean(PHP_KEYWORD_BOLD) ? SWT.BOLD : SWT.NONE) +
-    // (store.getBoolean(PHP_KEYWORD_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      type =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_TYPE)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //   (store.getBoolean(PHP_TYPE_BOLD) ? SWT.BOLD : SWT.NONE) +
-    // (store.getBoolean(PHP_TYPE_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      functionName =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_FUNCTIONNAME)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //  (store.getBoolean(PHP_FUNCTIONNAME_BOLD) ? SWT.BOLD : SWT.NONE)
-    //    + (store.getBoolean(PHP_FUNCTIONNAME_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      constant =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_CONSTANT)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //   (store.getBoolean(PHP_CONSTANT_BOLD) ? SWT.BOLD : SWT.NONE) +
-    // (store.getBoolean(PHP_CONSTANT_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      string =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_STRING)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //   (store.getBoolean(PHP_STRING_BOLD) ? SWT.BOLD : SWT.NONE ) +
-    // (store.getBoolean(PHP_STRING_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //      comment =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store,
-    // PHP_SINGLELINE_COMMENT)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //  (store.getBoolean(PHP_SINGLELINE_COMMENT_BOLD) ? SWT.BOLD : SWT.NONE )
-    //    + (store.getBoolean(PHP_SINGLELINE_COMMENT_ITALIC) ? SWT.ITALIC :
-    // SWT.NONE)));
-    //      multi_comment =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store,
-    // PHP_MULTILINE_COMMENT)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //  (store.getBoolean(PHP_MULTILINE_COMMENT_BOLD) ? SWT.BOLD : SWT.NONE)
-    //    + (store.getBoolean(PHP_MULTILINE_COMMENT_ITALIC) ? SWT.ITALIC :
-    // SWT.NONE)));
-    //      other =
-    //        new Token(new TextAttribute(
-    //          provider.getColor(PreferenceConverter.getColor(store, PHP_DEFAULT)),
-    //          BackgroundColor,
-    //    //SWT.NONE));
-    //   (store.getBoolean(PHP_DEFAULT_BOLD) ? SWT.BOLD : SWT.NONE) +
-    // (store.getBoolean(PHP_DEFAULT_ITALIC) ? SWT.ITALIC : SWT.NONE)));
-    //    updateWordRules();
   }
 
   /*
@@ -321,7 +296,7 @@ public class PHPCodeScanner extends AbstractJavaScanner {
     rules.add(new MultiLineRule("\"", "\"", token, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
     rules.add(new MultiLineRule("`", "`", token, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
     rules.add(new MultiLineRule("'", "'", token, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
-	
+
     token = getToken(IPreferenceConstants.PHP_MULTILINE_COMMENT);
     rules.add(new MultiLineRule("/*", "*/", token)); //$NON-NLS-2$ //$NON-NLS-1$
     // Add generic whitespace rule.
@@ -329,7 +304,7 @@ public class PHPCodeScanner extends AbstractJavaScanner {
     // Add word rule for keywords, types, and constants.
     token = getToken(IPreferenceConstants.PHP_DEFAULT);
     PHPWordRule wordRule = new PHPWordRule(new PHPWordDetector(), token);
-	
+
     Token keyword = getToken(IPreferenceConstants.PHP_KEYWORD);
     Token functionName = getToken(IPreferenceConstants.PHP_FUNCTIONNAME);
     Token type = getToken(IPreferenceConstants.PHP_TYPE);
@@ -357,17 +332,17 @@ public class PHPCodeScanner extends AbstractJavaScanner {
         wordRule.addWord(elbuffer.getName(), constant);
       }
     }
-    
-// Add word rule for keyword 'return'.
-    token= getToken(IPreferenceConstants.PHP_KEYWORD_RETURN);
+
+    // Add word rule for keyword 'return'.
+    token = getToken(IPreferenceConstants.PHP_KEYWORD_RETURN);
     wordRule.addWord("return", token);
 
-//  Add rule for operators and brackets (at the end !)
- 	rules.add(new OperatorRule(getToken(IPreferenceConstants.PHP_OPERATOR), getToken(IPreferenceConstants.PHP_BRACE_OPERATOR)));
-	
+    //  Add rule for operators and brackets (at the end !)
+    rules.add(new OperatorRule(getToken(IPreferenceConstants.PHP_OPERATOR), getToken(IPreferenceConstants.PHP_BRACE_OPERATOR)));
+
     rules.add(wordRule);
-    
+
     setDefaultReturnToken(getToken(IPreferenceConstants.PHP_DEFAULT));
     return rules;
   }
-}
+}
\ No newline at end of file