Syntax highlighting is changeable.
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / php / PHPCodeScanner.java
index 160925c..7e5c2cb 100644 (file)
@@ -14,22 +14,20 @@ package net.sourceforge.phpeclipse.phpeditor.php;
 import java.util.ArrayList;
 import java.util.List;
 
+import net.sourceforge.phpdt.internal.ui.text.AbstractJavaScanner;
+import net.sourceforge.phpdt.ui.text.IColorManager;
 import net.sourceforge.phpeclipse.IPreferenceConstants;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.phpeditor.util.PHPColorProvider;
+import net.sourceforge.phpeclipse.phpeditor.PHPSyntaxRdr;
 import net.sourceforge.phpeclipse.phpeditor.util.PHPWhitespaceDetector;
 import net.sourceforge.phpeclipse.phpeditor.util.PHPWordDetector;
+
 import org.eclipse.jface.preference.IPreferenceStore;
-import org.eclipse.jface.preference.PreferenceConverter;
-import org.eclipse.jface.text.TextAttribute;
 import org.eclipse.jface.text.rules.EndOfLineRule;
 import org.eclipse.jface.text.rules.ICharacterScanner;
 import org.eclipse.jface.text.rules.IRule;
 import org.eclipse.jface.text.rules.IToken;
 import org.eclipse.jface.text.rules.IWordDetector;
 import org.eclipse.jface.text.rules.MultiLineRule;
-import org.eclipse.jface.text.rules.RuleBasedScanner;
-import org.eclipse.jface.text.rules.SingleLineRule;
 import org.eclipse.jface.text.rules.Token;
 import org.eclipse.jface.text.rules.WhitespaceRule;
 import org.eclipse.jface.text.rules.WordRule;
@@ -37,16 +35,81 @@ import org.eclipse.jface.text.rules.WordRule;
 /**
  * PHP Code Scanner
  */
-public class PHPCodeScanner extends RuleBasedScanner implements IPreferenceConstants {
-
-  private static Token variable;
-  private static Token keyword;
-  private static Token functionName;
-  private static Token string;
-  private static Token comment;
-  private static Token multi_comment;
-  private static Token other;
-
+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;
+       
+               /**
+     * Creates a new operator rule.
+     * 
+     * @param token
+     *          Token to use for this rule
+     */
+               public OperatorRule(IToken token) {
+                       fToken= token;
+               }
+               
+               /**
+     * 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.
+     */
+               public boolean isOperator(char character) {
+                       for (int index= 0; index < JAVA_OPERATORS.length; index++) {
+                               if (JAVA_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 (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;
+                               }
+                               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;
+                       }
+               }
+       }
+       
   private class PHPWordRule extends WordRule {
     private StringBuffer fBuffer = new StringBuffer();
 
@@ -61,6 +124,46 @@ public class PHPCodeScanner extends RuleBasedScanner implements IPreferenceConst
     public IToken evaluate(ICharacterScanner scanner) {
       int c = scanner.read();
       boolean isVariable = false;
+      if (c == '<') {
+        c = scanner.read();
+        if (c != '?') {
+          scanner.unread();
+          scanner.unread();
+          return Token.UNDEFINED;
+        } else {
+          c = scanner.read();
+          if (c != 'p' && c != 'P') {
+            scanner.unread();
+            return getToken(IPreferenceConstants.PHP_TAG);
+          } else {
+            c = scanner.read();
+            if (c != 'h' && c != 'H') {
+              scanner.unread();
+              scanner.unread();
+              return getToken(IPreferenceConstants.PHP_TAG);
+            } else {
+              c = scanner.read();
+              if (c != 'p' && c != 'P') {
+                scanner.unread();
+                scanner.unread();
+                scanner.unread();
+                return getToken(IPreferenceConstants.PHP_TAG);
+              } else {
+                return getToken(IPreferenceConstants.PHP_TAG);
+              }
+            }
+          }
+        }
+      }
+      if (c == '?') {
+               c = scanner.read();
+        if (c == '>') {
+          return getToken(IPreferenceConstants.PHP_TAG);
+        } 
+        scanner.unread();
+        scanner.unread();
+        return Token.UNDEFINED;
+      }
       if (fDetector.isWordStart((char) c)) {
         if (c == '$') {
           isVariable = true;
@@ -75,7 +178,7 @@ public class PHPCodeScanner extends RuleBasedScanner implements IPreferenceConst
           scanner.unread();
 
           if (isVariable) {
-            return variable;
+            return getToken(IPreferenceConstants.PHP_VARIABLE);
           }
           IToken token = (IToken) fWords.get(fBuffer.toString());
           if (token != null)
@@ -93,100 +196,173 @@ public class PHPCodeScanner extends RuleBasedScanner implements IPreferenceConst
     }
   }
 
-  private static String[] fgConstants = { "__LINE__", "__FILE__", "true", "false", "null", "object", "array" };
-  //  private static TextAttribute fSingleLine;
-  //  private static TextAttribute fMultiLine;
-  //  private static TextAttribute fKeyword;
-  //  private static TextAttribute fFunctionName;
-  //  private static TextAttribute fString;
-  //  private static TextAttribute fVariable;
-  private PHPColorProvider fColorProvider;
+  //private PHPColorProvider fColorProvider;
 
+  private static String[] fgTokenProperties =
+    {
+      IPreferenceConstants.PHP_MULTILINE_COMMENT,
+      IPreferenceConstants.PHP_SINGLELINE_COMMENT,
+         IPreferenceConstants.PHP_TAG,
+      IPreferenceConstants.PHP_KEYWORD,
+      IPreferenceConstants.PHP_FUNCTIONNAME,
+      IPreferenceConstants.PHP_VARIABLE,
+      IPreferenceConstants.PHP_STRING,
+      IPreferenceConstants.PHP_TYPE,
+      IPreferenceConstants.PHP_CONSTANT,
+      IPreferenceConstants.PHP_DEFAULT,
+      IPreferenceConstants.PHP_OPERATOR,
+      IPreferenceConstants.PHP_KEYWORD_RETURN};
   /**
    * Creates a PHP code scanner
    */
-  public PHPCodeScanner(PHPColorProvider provider) {
-    final IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
+  // public PHPCodeScanner(JavaColorManager provider, IPreferenceStore store) {
+  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();
+  }
 
-    variable = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_VARIABLE))));
-    keyword = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_KEYWORD))));
-    functionName = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_FUNCTIONNAME))));
-    string = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_STRING))));
-    comment = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_SINGLELINE_COMMENT))));
-    multi_comment = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_MULTILINE_COMMENT))));
-    other = new Token(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_DEFAULT))));
+  /*
+   * @see AbstractJavaScanner#getTokenProperties()
+   */
+  protected String[] getTokenProperties() {
+    return fgTokenProperties;
+  }
 
+  /*
+   * @see AbstractJavaScanner#createRules()
+   */
+  protected List createRules() {
     List rules = new ArrayList();
-
+    Token token = getToken(IPreferenceConstants.PHP_SINGLELINE_COMMENT);
     // Add rule for single line comments.
-    rules.add(new EndOfLineRule("//", comment)); //$NON-NLS-1$
-    rules.add(new EndOfLineRule("#", comment));
-
+    rules.add(new EndOfLineRule("//", token)); //$NON-NLS-1$
+    rules.add(new EndOfLineRule("#", token)); //$NON-NLS-1$
     // Add rule for strings and character constants.
-    rules.add(new MultiLineRule("\"", "\"", string, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
-    rules.add(new SingleLineRule("'", "'", string, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
-
-    // rules.add(new SingleLineRule("//", "//", php_comment));
-    rules.add(new MultiLineRule("/*", "*/", multi_comment));
-
+    token = getToken(IPreferenceConstants.PHP_STRING);
+    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.
     rules.add(new WhitespaceRule(new PHPWhitespaceDetector()));
-
     // Add word rule for keywords, types, and constants.
-    PHPWordRule wordRule = new PHPWordRule(new PHPWordDetector(), other);
-//    //choochter-->
-//    for (int i = 0; i < PHPKeywords.PHP_KEYWORS.length; i++)
-//      wordRule.addWord(PHPKeywords.PHP_KEYWORS[i], keyword);
-//
-//    /*Read in the keywords from the XML file*/
-//    PHPSyntaxRdr syntaxRdr = new PHPSyntaxRdr();
-//    syntaxRdr.readFromFile(
-//      "C:\\eclipse\\workspace\\net.sourceforge.phpeclipse\\src\\net\\sourceforge\\phpeclipse\\phpeditor"
-//        + java.io.File.separator
-//        + "syntax.xml");
-//    {
-//      Vector Vbuffer = syntaxRdr.getKeywords();
-//      String VString = null;
-//      //Read keywords
-//      while ((Vbuffer != null) && (!Vbuffer.isEmpty() && ((VString = (String) Vbuffer.remove(0)) != null))) {
-//        wordRule.addWord(VString, keyword);
-//      }
-//      //Read functions  - to be tested
-//      Vbuffer = syntaxRdr.getFunctions();
-//      while ((Vbuffer != null) && (!Vbuffer.isEmpty() && ((VString = (String) Vbuffer.remove(0)) != null))) {
-//        wordRule.addWord(VString, functionName);
-//      }
-//    }
-//    
-//    //for (int i = 0; i < PHPFunctionNames.FUNCTION_NAMES.length; i++)
-//    //  wordRule.addWord(PHPFunctionNames.FUNCTION_NAMES[i], functionName);
-//    //<--choochter
-    for (int i = 0; i < PHPKeywords.PHP_KEYWORS.length; i++) {
-      wordRule.addWord(PHPKeywords.PHP_KEYWORS[i], keyword);
-    }
-    for (int i = 0; i < PHPFunctionNames.FUNCTION_NAMES.length; i++) {
-      wordRule.addWord(PHPFunctionNames.FUNCTION_NAMES[i], functionName);
-    }
-    for (int i = 0; i < fgConstants.length; i++) {
-      wordRule.addWord(fgConstants[i], keyword);
-    }
-    rules.add(wordRule);
-
-    IRule[] result = new IRule[rules.size()];
-    rules.toArray(result);
-    setRules(result);
-  }
-
-  public void updateToken(PHPColorProvider provider) {
-    final IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
+    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);
+    Token constant = getToken(IPreferenceConstants.PHP_CONSTANT);
 
-    variable.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_VARIABLE))));
-    keyword.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_KEYWORD))));
-    functionName.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_FUNCTIONNAME))));
-    string.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_STRING))));
-    comment.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_SINGLELINE_COMMENT))));
-    multi_comment.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_MULTILINE_COMMENT))));
-    other.setData(new TextAttribute(provider.getColor(PreferenceConverter.getColor(store, PHP_DEFAULT))));
+    ArrayList buffer = PHPSyntaxRdr.getSyntaxData();
+    //  String strbuffer = null; unused
+    PHPElement elbuffer = null;
+    String name;
+    for (int i = 0; i < buffer.size(); i++) {
+      //    while ((buffer != null)
+      //      && (!buffer.isEmpty()
+      //        && ((elbuffer = (PHPElement) buffer.remove(0)) != null))) {
+      elbuffer = (PHPElement) buffer.get(i);
+      if (elbuffer instanceof PHPKeyword) {
+        name = ((PHPKeyword) elbuffer).getName();
+        if (!name.equals("return")) {
+          wordRule.addWord(name, keyword);
+        }
+      } else if (elbuffer instanceof PHPFunction) {
+        wordRule.addWord(((PHPFunction) elbuffer).getName(), functionName);
+      } else if (elbuffer instanceof PHPType) {
+        wordRule.addWord(elbuffer.getName(), type);
+      } else if (elbuffer instanceof PHPConstant) {
+        wordRule.addWord(elbuffer.getName(), constant);
+      }
+    }
+    
+// 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 !)
+       token= getToken(IPreferenceConstants.PHP_OPERATOR);
+       rules.add(new OperatorRule(token));
+       
+    rules.add(wordRule);
+    
+    setDefaultReturnToken(getToken(IPreferenceConstants.PHP_DEFAULT));
+    return rules;
   }
 }