X-Git-Url: http://git.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
index 2769154..8874d00 100644
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
@@ -24,7 +24,7 @@ import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
 import net.sourceforge.phpdt.internal.compiler.parser.SyntaxError;
 import net.sourceforge.phpdt.internal.compiler.util.Util;
 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.obfuscator.PHPIdentifier;
+//import net.sourceforge.phpeclipse.obfuscator.PHPIdentifier;
 
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.runtime.CoreException;
@@ -32,713 +32,998 @@ import org.eclipse.core.runtime.IStatus;
 
 /**
  * Manages the identifer index information for a specific project
- *  
+ * 
  */
 public class IdentifierIndexManager {
-  public class LineCreator implements ITerminalSymbols {
-    private Scanner fScanner;
-
-    private int fToken;
-
-    public LineCreator() {
-      fScanner = new Scanner(true, false, false, false, true, null, null);
-    }
-
-    /**
-     * Add the information of the current identifier to the line
-     * 
-     * @param typeOfIdentifier
-     *          the type of the identifier ('c'lass, 'd'efine, 'f'unction, 'm'ethod(class), 'v'ariable(class) 'g'lobal variable)
-     * @param identifier
-     *          current identifier
-     * @param line
-     *          Buffer for the current index line
-     * @param phpdocOffset
-     *          the offset of the PHPdoc comment if available
-     * @param phpdocLength
-     *          the length of the PHPdoc comment if available
-     */
-    private void addIdentifierInformation(char typeOfIdentifier, char[] identifier, StringBuffer line, int phpdocOffset,
-        int phpdocLength) {
-      line.append('\t');
-      line.append(typeOfIdentifier);
-      line.append(identifier);
-      line.append("\to"); // Offset
-      line.append(fScanner.getCurrentTokenStartPosition());
-      if (phpdocOffset >= 0) {
-        line.append("\tp"); // phpdoc offset
-        line.append(phpdocOffset);
-        line.append("\tl"); // phpdoc length
-        line.append(phpdocLength);
-      }
-    }
-
-    private void addClassVariableInformation(char typeOfIdentifier, char[] identifier, StringBuffer line, int phpdocOffset,
-        int phpdocLength) {
-      line.append('\t');
-      line.append(typeOfIdentifier);
-      line.append(identifier);
-      line.append("\to"); // Offset
-      // we don't store the '$' in the index for class variables:
-      line.append(fScanner.getCurrentTokenStartPosition() + 1);
-      if (phpdocOffset >= 0) {
-        line.append("\tp"); // phpdoc offset
-        line.append(phpdocOffset);
-        line.append("\tl"); // phpdoc length
-        line.append(phpdocLength);
-      }
-    }
-
-    /**
-     * Get the next token from input
-     */
-    private void getNextToken() {
-      try {
-        fToken = fScanner.getNextToken();
-        if (Scanner.DEBUG) {
-          int currentEndPosition = fScanner.getCurrentTokenEndPosition();
-          int currentStartPosition = fScanner.getCurrentTokenStartPosition();
-          System.out.print(currentStartPosition + "," + currentEndPosition + ": ");
-          System.out.println(fScanner.toStringAction(fToken));
-        }
-        return;
-      } catch (InvalidInputException e) {
-        // ignore errors
-        //        e.printStackTrace();
-      }
-      fToken = TokenNameERROR;
-    }
-
-    private void parseDeclarations(char[] parent, StringBuffer buf, boolean goBack) {
-      char[] ident;
-      char[] classVariable;
-      int counter = 0;
-      boolean hasModifiers = false;
-      int phpdocOffset = -1;
-      int phpdocLength = -1;
-      try {
-        while (fToken != TokenNameEOF && fToken != TokenNameERROR) {
-          phpdocOffset = -1;
-          hasModifiers = false;
-          if (fToken == TokenNameCOMMENT_PHPDOC) {
-            phpdocOffset = fScanner.getCurrentTokenStartPosition();
-            phpdocLength = fScanner.getCurrentTokenEndPosition() - fScanner.getCurrentTokenStartPosition() + 1;
-            getNextToken();
-            while (fToken == TokenNamestatic || fToken == TokenNamefinal || fToken == TokenNamepublic
-                || fToken == TokenNameprotected || fToken == TokenNameprivate || fToken == TokenNameabstract) {
-              hasModifiers = true;
-              getNextToken();
-            }
-            if (fToken == TokenNameEOF || fToken == TokenNameERROR) {
-              break;
-            }
-          }
-          if (fToken == TokenNamefunction) {
-            getNextToken();
-            if (fToken == TokenNameAND) {
-              getNextToken();
-            }
-            if (fToken == TokenNameIdentifier) {
-              ident = fScanner.getCurrentIdentifierSource();
-              if (parent != null && equalCharArrays(parent, ident)) {
-                // constructor function
-                addIdentifierInformation('k', ident, buf, phpdocOffset, phpdocLength);
-              } else {
-                if (parent != null) {
-                  // class method function
-                  addIdentifierInformation('m', ident, buf, phpdocOffset, phpdocLength);
-                } else {
-                  // nested function ?!
-                  addIdentifierInformation('f', ident, buf, phpdocOffset, phpdocLength);
-                }
-              }
-              getNextToken();
-              parseDeclarations(null, buf, true);
-            }
-          } else if (fToken == TokenNameclass || fToken == TokenNameinterface) {
-            getNextToken();
-            if (fToken == TokenNameIdentifier) {
-              ident = fScanner.getCurrentIdentifierSource();
-              addIdentifierInformation('c', ident, buf, phpdocOffset, phpdocLength);
-              getNextToken();
-              //skip tokens for classname, extends and others until we have
-              // the opening '{'
-              while (fToken != TokenNameLBRACE && fToken != TokenNameEOF && fToken != TokenNameERROR) {
-                getNextToken();
-              }
-              parseDeclarations(ident, buf, true);
-            }
-          } else if (fToken == TokenNamevar || hasModifiers || fToken == TokenNamestatic || fToken == TokenNamefinal
-              || fToken == TokenNamepublic || fToken == TokenNameprotected || fToken == TokenNameprivate) {
-            while (fToken == TokenNamevar || fToken == TokenNamestatic || fToken == TokenNamefinal || fToken == TokenNamepublic
-                || fToken == TokenNameprotected || fToken == TokenNameprivate) {
-              getNextToken();
-            }
-            while (fToken == TokenNameVariable) {
-              ident = fScanner.getCurrentIdentifierSource();
-              classVariable = new char[ident.length - 1];
-              System.arraycopy(ident, 1, classVariable, 0, ident.length - 1);
-              addClassVariableInformation('v', classVariable, buf, phpdocOffset, phpdocLength);
-              getNextToken();
-              if (fToken == TokenNameCOMMA) {
-                getNextToken();
-              }
-            }
-          } else if (!hasModifiers && fToken == TokenNameIdentifier) {
-            ident = fScanner.getCurrentIdentifierSource();
-            getNextToken();
-            if (ident.length == 6 && ident[0] == 'd' && ident[1] == 'e' && ident[2] == 'f' && ident[3] == 'i' && ident[4] == 'n'
-                && ident[5] == 'e') {
-              if (fToken == TokenNameLPAREN) {
-                getNextToken();
-                if (fToken == TokenNameStringDoubleQuote) {
-                  ident = fScanner.getCurrentStringLiteralSource();
-                  addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength);
-                  getNextToken();
-                } else if (fToken == TokenNameStringSingleQuote) {
-                  ident = fScanner.getCurrentStringLiteralSource();
-                  addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength);
-                  getNextToken();
-                }
-              }
-            }
-          } else if (fToken == TokenNameglobal) {
-            // global variable
-            while (fToken != TokenNameEOF && fToken != TokenNameERROR && fToken != TokenNameSEMICOLON && fToken != TokenNameLBRACE
-                && fToken != TokenNameRBRACE) {
-              getNextToken();
-              if (fToken == TokenNameVariable) {
-                ident = fScanner.getCurrentIdentifierSource();
-                addIdentifierInformation('g', ident, buf, phpdocOffset, phpdocLength);
-              }
-            }
-          } else if (fToken == TokenNameLBRACE) {
-            getNextToken();
-            counter++;
-          } else if (fToken == TokenNameRBRACE) {
-            getNextToken();
-            --counter;
-            if (counter == 0 && goBack) {
-              return;
-            }
-          } else {
-            getNextToken();
-          }
-        }
-      } catch (SyntaxError e) {
-        // TODO Auto-generated catch block
-        e.printStackTrace();
-      }
-    }
-
-    synchronized public void parseIdentifiers(char[] charArray, StringBuffer buf) {
-      char[] ident;
-      String identifier;
-      int counter = 0;
-      boolean hasModifiers = false;
-      int phpdocOffset = -1;
-      int phpdocLength = -1;
-      fScanner.setSource(charArray);
-      fScanner.setPHPMode(false);
-      fToken = TokenNameEOF;
-      getNextToken();
-      try {
-        while (fToken != TokenNameEOF) { // && fToken != TokenNameERROR) {
-          phpdocOffset = -1;
-          hasModifiers = false;
-          if (fToken == TokenNameCOMMENT_PHPDOC) {
-            phpdocOffset = fScanner.getCurrentTokenStartPosition();
-            phpdocLength = fScanner.getCurrentTokenEndPosition() - fScanner.getCurrentTokenStartPosition() + 1;
-            getNextToken();
-            while (fToken == TokenNamestatic || fToken == TokenNamefinal || fToken == TokenNamepublic
-                || fToken == TokenNameprotected || fToken == TokenNameprivate || fToken == TokenNameabstract) {
-              hasModifiers = true;
-              getNextToken();
-            }
-            if (fToken == TokenNameEOF || fToken == TokenNameERROR) {
-              break;
-            }
-          }
-          if (fToken == TokenNamefunction) {
-            getNextToken();
-            if (fToken == TokenNameAND) {
-              getNextToken();
-            }
-            if (fToken == TokenNameIdentifier) {
-              ident = fScanner.getCurrentIdentifierSource();
-              addIdentifierInformation('f', ident, buf, phpdocOffset, phpdocLength);
-              getNextToken();
-              parseDeclarations(null, buf, true);
-            }
-          } else if (fToken == TokenNameclass || fToken == TokenNameinterface) {
-            getNextToken();
-            if (fToken == TokenNameIdentifier) {
-              ident = fScanner.getCurrentIdentifierSource();
-              addIdentifierInformation('c', ident, buf, phpdocOffset, phpdocLength);
-              getNextToken();
-              //skip fTokens for classname, extends and others until we have
-              // the opening '{'
-              while (fToken != TokenNameLBRACE && fToken != TokenNameEOF && fToken != TokenNameERROR) {
-                getNextToken();
-              }
-              parseDeclarations(ident, buf, true);
-            }
-          } else if (fToken == TokenNameVariable) {
-            // global variable
-            ident = fScanner.getCurrentIdentifierSource();
-            addIdentifierInformation('g', ident, buf, phpdocOffset, phpdocLength);
-            getNextToken();
-          } else if (!hasModifiers && fToken == TokenNameIdentifier) {
-            ident = fScanner.getCurrentIdentifierSource();
-            getNextToken();
-            if (ident.length == 6 && ident[0] == 'd' && ident[1] == 'e' && ident[2] == 'f' && ident[3] == 'i' && ident[4] == 'n'
-                && ident[5] == 'e') {
-              if (fToken == TokenNameLPAREN) {
-                getNextToken();
-                if (fToken == TokenNameStringDoubleQuote) {
-                  ident = fScanner.getCurrentStringLiteralSource();
-                  addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength);
-                  getNextToken();
-                } else if (fToken == TokenNameStringSingleQuote) {
-                  ident = fScanner.getCurrentStringLiteralSource();
-                  addIdentifierInformation('d', ident, buf, phpdocOffset, phpdocLength);
-                  getNextToken();
-                } 
-              }
-            }
-          } else {
-            getNextToken();
-          }
-        }
-      } catch (SyntaxError e) {
-        // TODO Auto-generated catch block
-        e.printStackTrace();
-      }
-    }
-  }
-
-  class StringComparator implements Comparator {
-    public int compare(Object o1, Object o2) {
-      String s1 = (String) o1;
-      String s2 = (String) o2;
-      return s1.compareTo(s2);
-      //	return s1.toUpperCase().compareTo(s2.toUpperCase());
-    }
-
-    public boolean equals(Object o) {
-      String s = (String) o;
-      return compare(this, o) == 0;
-    }
-  }
-
-  private HashMap fFileMap;
-
-  private String fFilename;
-
-  private TreeMap fIndentifierMap;
-
-  public IdentifierIndexManager(String filename) {
-    fFilename = filename;
-    initialize();
-    readFile();
-  }
-
-  /**
-   * Check if 2 char arrays are equal
-   * 
-   * @param a
-   * @param b
-   * @return
-   */
-  private static boolean equalCharArrays(char[] a, char[] b) {
-    if (a.length != b.length) {
-      return false;
-    }
-    for (int i = 0; i < b.length; i++) {
-      if (a[i] != b[i]) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  public LineCreator createLineCreator() {
-    return new LineCreator();
-  }
-
-  /**
-   * Add the information for a given IFile resource
-   *  
-   */
-  public void addFile(IFile fileToParse) {
-    //    InputStream iStream;
-    LineCreator lineCreator = createLineCreator();
-    try {
-      addInputStream(new BufferedInputStream(fileToParse.getContents()), fileToParse.getProjectRelativePath().toString(),
-          lineCreator);
-    } catch (CoreException e1) {
-      // TODO Auto-generated catch block
-      e1.printStackTrace();
-    }
-  }
-
-  /**
-   * @param fileToParse
-   * @param lineCreator
-   * @throws CoreException
-   */
-  public void addInputStream(InputStream stream, String filePath, LineCreator lineCreator) throws CoreException {
-    try {
-      StringBuffer lineBuffer = new StringBuffer();
-      lineBuffer.append(filePath);
-      int lineLength = lineBuffer.length();
-      lineCreator.parseIdentifiers(Util.getInputStreamAsCharArray(stream, -1, null), lineBuffer);
-      //      if (lineLength != lineBuffer.length()) {
-      // always add the file for Open Include Action
-      addLine(lineBuffer.toString());
-      //      }
-    } catch (IOException e) {
-      e.printStackTrace();
-    } finally {
-      try {
-        if (stream != null) {
-          stream.close();
-        }
-      } catch (IOException e) {
-      }
-    }
-  }
-
-  /**
-   * Adds a line of the index file for function, class, class-method and class-variable names
-   * 
-   * @param line
-   */
-  private void addLine(String line) {
-    StringTokenizer tokenizer;
-    String phpFileName = null;
-    String token;
-    String identifier = null;
-    String classname = null;
-    String offset = null;
-    PHPIdentifierLocation phpIdentifier = null;
-    boolean tokenExists = false;
-    tokenizer = new StringTokenizer(line, "\t");
-    // first token contains the filename:
-    if (tokenizer.hasMoreTokens()) {
-      phpFileName = tokenizer.nextToken();
-      //System.out.println(token);
-    } else {
-      return;
-    }
-    // all the other tokens are identifiers:
-    while (tokenizer.hasMoreTokens()) {
-      token = tokenizer.nextToken();
-      //System.out.println(token);
-      switch (token.charAt(0)) {
-      case 'c':
-        // class name
-        identifier = token.substring(1);
-        classname = identifier;
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CLASS, phpFileName);
-        break;
-      case 'd':
-        // define
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.DEFINE, phpFileName);
-        break;
-      case 'f':
-        // function name
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.FUNCTION, phpFileName);
-        break;
-      case 'g':
-        // global variable
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.GLOBAL_VARIABLE, phpFileName);
-        break;
-      case 'k':
-        // constructor function name
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CONSTRUCTOR, phpFileName);
-        break;
-      case 'm':
-        //method inside a class
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.METHOD, phpFileName, classname);
-        break;
-      case 'v':
-        // variable inside a class
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.VARIABLE, phpFileName, classname);
-        break;
-      case 'o':
-        // offset information
-        identifier = null;
-        if (phpIdentifier != null) {
-          offset = token.substring(1);
-          phpIdentifier.setOffset(Integer.parseInt(offset));
-        }
-        break;
-      case 'p':
-        // PHPdoc offset information
-        identifier = null;
-        if (phpIdentifier != null) {
-          offset = token.substring(1);
-          phpIdentifier.setPHPDocOffset(Integer.parseInt(offset));
-        }
-        break;
-      case 'l':
-        // PHPdoc length information
-        identifier = null;
-        if (phpIdentifier != null) {
-          offset = token.substring(1);
-          phpIdentifier.setPHPDocLength(Integer.parseInt(offset));
-        }
-        break;
-      default:
-        PHPeclipsePlugin.log(IStatus.ERROR, "Unknown token character in IdentifierIndexManager: " + token.charAt(0));
-        identifier = null;
-        phpIdentifier = null;
-        classname = null;
-      }
-      if (identifier != null && phpIdentifier != null) {
-        tokenExists = true;
-        ArrayList list = (ArrayList) fIndentifierMap.get(identifier);
-        if (list == null) {
-          list = new ArrayList();
-          list.add(phpIdentifier);
-          fIndentifierMap.put(identifier, list);
-        } else {
-          boolean flag = false;
-          for (int i = 0; i < list.size(); i++) {
-            if (list.get(i).equals(phpIdentifier)) {
-              flag = true;
-              break;
-            }
-          }
-          if (flag == false) {
-            list.add(phpIdentifier);
-          }
-        }
-      }
-    }
-    //    if (tokenExists) {
-    fFileMap.put(phpFileName, line);
-    //    }
-  }
-
-  /**
-   * Change the information for a given IFile resource
-   *  
-   */
-  public void changeFile(IFile fileToParse) {
-    removeFile(fileToParse);
-    addFile(fileToParse);
-  }
-
-  /**
-   * Get a list of all PHPIdentifierLocation object's associated with an identifier
-   * 
-   * @param identifier
-   * @return
-   */
-  public List getLocations(String identifier) {
-    return (List) fIndentifierMap.get(identifier);
-  }
-
-  /**
-   * Initialize (i.e. clear) the current index information
-   *  
-   */
-  public void initialize() {
-    fIndentifierMap = new TreeMap(new StringComparator());
-    fFileMap = new HashMap();
-  }
-
-  private void readFile() {
-    FileReader fileReader;
-    try {
-      fileReader = new FileReader(fFilename);
-      BufferedReader bufferedReader = new BufferedReader(fileReader);
-      String line;
-      while (bufferedReader.ready()) {
-        // all entries for one file are in a line
-        // separated by tabs !
-        line = bufferedReader.readLine();
-        addLine(line);
-      }
-      fileReader.close();
-    } catch (FileNotFoundException e) {
-      // ignore this
-      // TODO DialogBox which asks the user if she/he likes to build new index?
-    } catch (IOException e) {
-      // TODO Auto-generated catch block
-      e.printStackTrace();
-    }
-  }
-
-  /**
-   * Remove the information for a given IFile resource
-   *  
-   */
-  public void removeFile(IFile fileToParse) {
-    //    String line = (String)
-    // fFileMap.get(fileToParse.getLocation().toString());
-    String line = (String) fFileMap.get(fileToParse.getProjectRelativePath().toString());
-    if (line != null) {
-      removeLine(line);
-    }
-  }
-
-  /**
-   * Removes a line of the index file for function, class, class-method and class-variable names
-   * 
-   * @param line
-   */
-  private void removeLine(String line) {
-    StringTokenizer tokenizer;
-    String phpFileName = null;
-    String token;
-    String identifier = null;
-    String classname = null;
-    PHPIdentifier phpIdentifier = null;
-    boolean tokenExists = false;
-    tokenizer = new StringTokenizer(line, "\t");
-    // first token contains the filename:
-    if (tokenizer.hasMoreTokens()) {
-      phpFileName = tokenizer.nextToken();
-      //System.out.println(token);
-    } else {
-      return;
-    }
-    int offset = -1;
-    // all the other tokens are identifiers:
-    while (tokenizer.hasMoreTokens()) {
-      token = tokenizer.nextToken();
-      //System.out.println(token);
-      switch (token.charAt(0)) {
-      case 'c':
-        // class name
-        identifier = token.substring(1);
-        classname = identifier;
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CLASS, phpFileName);
-        break;
-      case 'd':
-        // define
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.DEFINE, phpFileName);
-        break;
-      case 'f':
-        // function name
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.FUNCTION, phpFileName);
-        break;
-      case 'g':
-        // global variable
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.GLOBAL_VARIABLE, phpFileName);
-        break;
-      case 'k':
-        // constructor function name
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.CONSTRUCTOR, phpFileName);
-        break;
-      case 'm':
-        //method inside a class
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.METHOD, phpFileName, classname);
-        break;
-      case 'o':
-        // offset information
-        identifier = null;
-        break;
-      case 'p':
-        // PHPdoc offset information
-        identifier = null;
-        break;
-      case 'l':
-        // PHPdoc length information
-        identifier = null;
-        break;
-      case 'v':
-        // variable inside a class
-        identifier = token.substring(1);
-        phpIdentifier = new PHPIdentifierLocation(identifier, PHPIdentifier.VARIABLE, phpFileName, classname);
-        break;
-      default:
-        PHPeclipsePlugin.log(IStatus.ERROR, "Unknown token character in IdentifierIndexManager: " + token.charAt(0));
-        identifier = null;
-        phpIdentifier = null;
-        classname = null;
-      }
-      if (identifier != null && phpIdentifier != null) {
-        ArrayList list = (ArrayList) fIndentifierMap.get(identifier);
-        if (list == null) {
-        } else {
-          for (int i = 0; i < list.size(); i++) {
-            if (list.get(i).equals(phpIdentifier)) {
-              list.remove(i);
-              break;
-            }
-          }
-          if (list.size() == 0) {
-            fIndentifierMap.remove(identifier);
-          }
-        }
-      }
-    }
-    fFileMap.remove(phpFileName);
-  }
-
-  /**
-   * Save the current index information in the projects index file
-   *  
-   */
-  public void writeFile() {
-    FileWriter fileWriter;
-    try {
-      fileWriter = new FileWriter(fFilename);
-      String line;
-      Collection collection = fFileMap.values();
-      Iterator iterator = collection.iterator();
-      while (iterator.hasNext()) {
-        line = (String) iterator.next();
-        fileWriter.write(line + '\n');
-      }
-      fileWriter.close();
-    } catch (FileNotFoundException e) {
-      // ignore exception; project is deleted by user
-    } catch (IOException e) {
-      // TODO Auto-generated catch block
-      e.printStackTrace();
-    }
-  }
-
-  /**
-   * @param fromKey
-   * @param toKey
-   * @return
-   */
-  public SortedMap getIdentifierMap() {
-    return fIndentifierMap;
-  }
-
-  synchronized public List getFileList(String filePattern) {
-    Set set = fFileMap.keySet();
-    if (set.isEmpty()) {
-      return null;
-    }
-    Iterator iter = set.iterator();
-    ArrayList list = new ArrayList();
-    String fileName;
-    int index;
-    while (iter.hasNext()) {
-      fileName = (String) iter.next();
-      if ((index = fileName.indexOf(filePattern)) != -1 && fileName.length() == (index + filePattern.length())) {
-        list.add(fileName);
-      }
-    }
-    return list;
-  }
+	public class LineCreator implements ITerminalSymbols {
+		private Scanner fScanner;
+
+		private int fToken;
+
+		public LineCreator() {
+			fScanner = new Scanner(true, false, false, false, true, null, null,
+					true /* taskCaseSensitive */);
+		}
+
+		/**
+		 * Add the information of the current identifier to the line
+		 * 
+		 * @param typeOfIdentifier
+		 *            the type of the identifier ('c'lass, 'd'efine, 'f'unction,
+		 *            'm'ethod(class), 'v'ariable(class) 'g'lobal variable)
+		 * @param identifier
+		 *            current identifier
+		 * @param line
+		 *            Buffer for the current index line
+		 */
+		private void addIdentifierInformation(char typeOfIdentifier,
+				char[] identifier, StringBuffer line) {
+			line.append('\t');
+			line.append(typeOfIdentifier);
+			line.append(identifier);
+		}
+
+		/**
+		 * Add the information of the current identifier to the line
+		 * 
+		 * @param typeOfIdentifier
+		 *            the type of the identifier ('c'lass, 'd'efine, 'f'unction,
+		 *            'm'ethod(class), 'v'ariable(class) 'g'lobal variable)
+		 * @param identifier
+		 *            current identifier
+		 * @param line
+		 *            Buffer for the current index line
+		 * @param phpdocOffset
+		 *            the offset of the PHPdoc comment if available
+		 * @param phpdocLength
+		 *            the length of the PHPdoc comment if available
+		 */
+		private void addIdentifierInformation(char typeOfIdentifier,
+				char[] identifier, StringBuffer line, int phpdocOffset,
+				int phpdocLength) {
+			line.append('\t');
+			line.append(typeOfIdentifier);
+			line.append(identifier);
+			line.append("\to"); // Offset
+			line.append(fScanner.getCurrentTokenStartPosition());
+			if (phpdocOffset >= 0) {
+				line.append("\tp"); // phpdoc offset
+				line.append(phpdocOffset);
+				line.append("\tl"); // phpdoc length
+				line.append(phpdocLength);
+			}
+		}
+
+		private void addClassVariableInformation(char typeOfIdentifier,
+				char[] identifier, StringBuffer line, int phpdocOffset,
+				int phpdocLength) {
+			line.append('\t');
+			line.append(typeOfIdentifier);
+			line.append(identifier);
+			line.append("\to"); // Offset
+			// we don't store the '$' in the index for class variables:
+			line.append(fScanner.getCurrentTokenStartPosition() + 1);
+			if (phpdocOffset >= 0) {
+				line.append("\tp"); // phpdoc offset
+				line.append(phpdocOffset);
+				line.append("\tl"); // phpdoc length
+				line.append(phpdocLength);
+			}
+		}
+
+		/**
+		 * Get the next token from input
+		 */
+		private void getNextToken() throws InvalidInputException {
+			// try {
+			fToken = fScanner.getNextToken();
+			if (Scanner.DEBUG) {
+				int currentEndPosition = fScanner.getCurrentTokenEndPosition();
+				int currentStartPosition = fScanner
+						.getCurrentTokenStartPosition();
+				System.out.print(currentStartPosition + ","
+						+ currentEndPosition + ": ");
+				System.out.println(fScanner.toStringAction(fToken));
+			}
+			return;
+		}
+
+		private void skipComments()
+		{
+			try {
+				getNextToken();
+				while (fToken == TokenNameCOMMENT_BLOCK  || fToken == TokenNameCOMMENT_PHPDOC) {
+						getNextToken();
+				}
+			} catch (InvalidInputException e1) {
+				// TODO Auto-generated catch block
+				e1.printStackTrace();
+			}
+		}
+		
+		private void parseDeclarations(char[] parent, StringBuffer buf,
+				boolean goBack) {
+			char[] ident;
+			char[] classVariable;
+			int counter = 0;
+			boolean hasModifiers = false;
+			int phpdocOffset = -1;
+			int phpdocLength = -1;
+			try {
+				while (fToken != TokenNameEOF && fToken != TokenNameERROR) {
+					phpdocOffset = -1;
+					hasModifiers = false;
+					if (fToken == TokenNameCOMMENT_PHPDOC) {
+						phpdocOffset = fScanner.getCurrentTokenStartPosition();
+						phpdocLength = fScanner.getCurrentTokenEndPosition()
+								- fScanner.getCurrentTokenStartPosition() + 1;
+						getNextToken();
+						while (fToken == TokenNamestatic
+								|| fToken == TokenNamefinal
+								|| fToken == TokenNamepublic
+								|| fToken == TokenNameprotected
+								|| fToken == TokenNameprivate
+								|| fToken == TokenNameabstract) {
+							hasModifiers = true;
+							getNextToken();
+						}
+						if (fToken == TokenNameEOF || fToken == TokenNameERROR) {
+							break;
+						}
+					}
+					if (fToken == TokenNamefunction) {
+						skipComments();
+						if (fToken == TokenNameAND) {
+							getNextToken();
+						}
+						if (fToken == TokenNameIdentifier) {
+							ident = fScanner.getCurrentIdentifierSource();
+							if (parent != null
+									&& equalCharArrays(parent, ident)) {
+								// constructor function
+								addIdentifierInformation('k', ident, buf,
+										phpdocOffset, phpdocLength);
+							} else {
+								if (parent != null) {
+									// class method function
+									addIdentifierInformation('m', ident, buf,
+											phpdocOffset, phpdocLength);
+								} else {
+									// nested function ?!
+									addIdentifierInformation('f', ident, buf,
+											phpdocOffset, phpdocLength);
+								}
+							}
+							skipComments();
+							parseDeclarations(null, buf, true);
+						}
+					} else if (fToken == TokenNameclass
+							|| fToken == TokenNameinterface) {
+						skipComments();
+						if (fToken == TokenNameIdentifier) {
+							ident = fScanner.getCurrentIdentifierSource();
+							addIdentifierInformation('c', ident, buf,
+									phpdocOffset, phpdocLength);
+							skipComments();
+							if (fToken == TokenNameextends) {
+								skipComments();
+								while (fToken == TokenNameIdentifier) {
+									ident = fScanner
+											.getCurrentIdentifierSource();
+									// extends ident
+									addIdentifierInformation('e', ident, buf);
+									skipComments();
+								if (fToken == TokenNameCOMMA) {
+									skipComments();
+									}
+								}
+							}
+							if (fToken == TokenNameimplements) {
+								skipComments();
+								while (fToken == TokenNameIdentifier) {
+									ident = fScanner
+											.getCurrentIdentifierSource();
+									// implements ident
+									addIdentifierInformation('e', ident, buf);
+									skipComments();
+									if (fToken == TokenNameCOMMA) {
+										skipComments();
+//										getNextToken();
+									}
+								}
+							}
+							// skip tokens for classname, extends and others
+							// until we have
+							// the opening '{'
+							while (fToken != TokenNameLBRACE
+									&& fToken != TokenNameEOF
+									&& fToken != TokenNameERROR) {
+								getNextToken();
+							}
+							parseDeclarations(ident, buf, true);
+						}
+					} else if (fToken == TokenNamevar || hasModifiers
+							|| fToken == TokenNamestatic
+							|| fToken == TokenNamefinal
+							|| fToken == TokenNamepublic
+							|| fToken == TokenNameprotected
+							|| fToken == TokenNameprivate) {
+						while (fToken == TokenNamevar
+								|| fToken == TokenNamestatic
+								|| fToken == TokenNamefinal
+								|| fToken == TokenNamepublic
+								|| fToken == TokenNameprotected
+								|| fToken == TokenNameprivate) {
+							skipComments();
+						}
+						while (fToken == TokenNameVariable) {
+							ident = fScanner.getCurrentIdentifierSource();
+							classVariable = new char[ident.length - 1];
+							System.arraycopy(ident, 1, classVariable, 0,
+									ident.length - 1);
+							addClassVariableInformation('v', classVariable,
+									buf, phpdocOffset, phpdocLength);
+							skipComments();
+							if (fToken == TokenNameCOMMA) {
+								skipComments();
+							}
+						}
+					} else if (!hasModifiers && fToken == TokenNameIdentifier) {
+						ident = fScanner.getCurrentIdentifierSource();
+						getNextToken();
+						if (ident.length == 6 && ident[0] == 'd'
+								&& ident[1] == 'e' && ident[2] == 'f'
+								&& ident[3] == 'i' && ident[4] == 'n'
+								&& ident[5] == 'e') {
+							if (fToken == TokenNameLPAREN) {
+								getNextToken();
+								if (fToken == TokenNameStringDoubleQuote) {
+									ident = fScanner
+											.getCurrentStringLiteralSource();
+									addIdentifierInformation('d', ident, buf,
+											phpdocOffset, phpdocLength);
+									getNextToken();
+								} else if (fToken == TokenNameStringSingleQuote) {
+									ident = fScanner
+											.getCurrentStringLiteralSource();
+									addIdentifierInformation('d', ident, buf,
+											phpdocOffset, phpdocLength);
+									getNextToken();
+								}
+							}
+						}
+					} else if (fToken == TokenNameglobal) {
+						// global variable
+						while (fToken != TokenNameEOF
+								&& fToken != TokenNameERROR
+								&& fToken != TokenNameSEMICOLON
+								&& fToken != TokenNameLBRACE
+								&& fToken != TokenNameRBRACE) {
+							getNextToken();
+							if (fToken == TokenNameVariable) {
+								ident = fScanner.getCurrentIdentifierSource();
+								addIdentifierInformation('g', ident, buf,
+										phpdocOffset, phpdocLength);
+							}
+						}
+					} else if (fToken == TokenNameLBRACE) {
+						getNextToken();
+						counter++;
+					} else if (fToken == TokenNameRBRACE) {
+						getNextToken();
+						--counter;
+						if (counter == 0 && goBack) {
+							return;
+						}
+					} else {
+						getNextToken();
+					}
+				}
+			} catch (InvalidInputException e) {
+				// ignore errors
+			} catch (SyntaxError e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		}
+
+		synchronized public void parseIdentifiers(char[] charArray,
+				StringBuffer buf) {
+			char[] ident;
+			String identifier;
+			boolean hasModifiers = false;
+			int phpdocOffset = -1;
+			int phpdocLength = -1;
+			fScanner.setSource(charArray);
+			fScanner.setPHPMode(false);
+			fToken = TokenNameEOF;
+			try {
+				getNextToken();
+				while (fToken != TokenNameEOF) { // && fToken !=
+					// TokenNameERROR) {
+					phpdocOffset = -1;
+					hasModifiers = false;
+					switch (fToken) {
+					case TokenNameCOMMENT_PHPDOC:
+						phpdocOffset = fScanner.getCurrentTokenStartPosition();
+						phpdocLength = fScanner.getCurrentTokenEndPosition()
+								- fScanner.getCurrentTokenStartPosition() + 1;
+						getNextToken();
+						while (fToken == TokenNamestatic
+								|| fToken == TokenNamefinal
+								|| fToken == TokenNamepublic
+								|| fToken == TokenNameprotected
+								|| fToken == TokenNameprivate
+								|| fToken == TokenNameabstract) {
+							hasModifiers = true;
+							getNextToken();
+						}
+						if (fToken == TokenNameEOF || fToken == TokenNameERROR) {
+							break;
+						}
+						break;
+						
+					case TokenNamefunction:
+						skipComments();
+						if (fToken == TokenNameAND) {
+							getNextToken();
+						}
+						if (fToken == TokenNameIdentifier) {
+							ident = fScanner.getCurrentIdentifierSource();
+							addIdentifierInformation('f', ident, buf,
+									phpdocOffset, phpdocLength);
+							skipComments();
+							if (fToken == TokenNameLPAREN) {
+								skipComments();
+								do {
+									if (fToken == TokenNameVariable) {
+										ident = fScanner.getCurrentIdentifierSource();
+										addIdentifierInformation('v', ident, buf,
+												phpdocOffset, phpdocLength);
+										skipComments();
+										if (fToken == TokenNameCOMMA) {
+											skipComments();
+										}
+									}	
+								} while (fToken != TokenNameRPAREN );
+							}
+							parseDeclarations(null, buf, true);
+						}
+						break;
+						
+					case TokenNameclass:
+					case TokenNameinterface:
+						skipComments();
+						if (fToken == TokenNameIdentifier) {
+							ident = fScanner.getCurrentIdentifierSource();
+							addIdentifierInformation('c', ident, buf,
+									phpdocOffset, phpdocLength);
+							skipComments();
+							if (fToken == TokenNameextends) {
+								skipComments();
+								while (fToken == TokenNameIdentifier) {
+									ident = fScanner
+											.getCurrentIdentifierSource();
+									// extends ident
+									addIdentifierInformation('e', ident, buf);
+									skipComments();
+									if (fToken == TokenNameCOMMA) {
+										skipComments();
+									}
+								}
+							}
+							if (fToken == TokenNameimplements) {
+								skipComments();
+								while (fToken == TokenNameIdentifier) {
+									ident = fScanner
+											.getCurrentIdentifierSource();
+									// implements ident
+									addIdentifierInformation('e', ident, buf);
+									skipComments();
+									if (fToken == TokenNameCOMMA) {
+										skipComments();
+									}
+								}
+							}
+							// skip fTokens for classname, extends and others
+							// until we have
+							// the opening '{'
+							while (fToken != TokenNameLBRACE
+									&& fToken != TokenNameEOF
+									&& fToken != TokenNameERROR) {
+								getNextToken();
+							}
+							parseDeclarations(ident, buf, true);
+						}
+						break;
+
+					case TokenNameVariable:
+						// global variable
+						ident = fScanner.getCurrentIdentifierSource();
+						addIdentifierInformation('g', ident, buf, phpdocOffset,
+								phpdocLength);
+						getNextToken();
+						break;
+
+					default:
+						getNextToken();
+					}
+					
+				}
+			} catch (InvalidInputException e) {
+				// ignore errors
+			} catch (SyntaxError e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		}
+	}
+		
+	class StringComparator implements Comparator {
+		public int compare(Object o1, Object o2) {
+			String s1 = (String) o1;
+			String s2 = (String) o2;
+			return s1.compareTo(s2);
+			// return s1.toUpperCase().compareTo(s2.toUpperCase());
+		}
+
+		public boolean equals(Object o) {
+			String s = (String) o;
+			return compare(this, o) == 0;
+		}
+	}
+
+	private HashMap fFileMap;
+
+	private String fFilename;
+
+	private TreeMap fIndentifierMap;
+
+	public IdentifierIndexManager(String filename) {
+		fFilename = filename;
+		initialize();
+		readFile();
+	}
+
+	/**
+	 * Check if 2 char arrays are equal
+	 * 
+	 * @param a
+	 * @param b
+	 * @return
+	 */
+	private static boolean equalCharArrays(char[] a, char[] b) {
+		if (a.length != b.length) {
+			return false;
+		}
+		for (int i = 0; i < b.length; i++) {
+			if (a[i] != b[i]) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	public LineCreator createLineCreator() {
+		return new LineCreator();
+	}
+
+	/**
+	 * Add the information for a given IFile resource
+	 * 
+	 */
+	public void addFile(IFile fileToParse) {
+		LineCreator lineCreator = createLineCreator();
+		try {
+			addInputStream(new BufferedInputStream(fileToParse.getContents()),
+					fileToParse.getProjectRelativePath().toString(),
+					lineCreator, fileToParse.getCharset());
+		} catch (CoreException e1) {
+			// TODO Auto-generated catch block
+			e1.printStackTrace();
+		}
+	}
+
+	/**
+	 * @param fileToParse
+	 * @param lineCreator
+	 * @throws CoreException
+	 */
+	public void addInputStream(InputStream stream, String filePath,
+			LineCreator lineCreator, String charset) throws CoreException {
+		try {
+			StringBuffer lineBuffer = new StringBuffer();
+			lineBuffer.append(filePath);
+			lineCreator.parseIdentifiers(Util.getInputStreamAsCharArray(stream,
+					-1, charset), lineBuffer);
+			addLine(lineBuffer.toString());
+		} catch (IOException e) {
+			e.printStackTrace();
+		} finally {
+			try {
+				if (stream != null) {
+					stream.close();
+				}
+			} catch (IOException e) {
+				// do nothing
+			}
+		}
+	}
+
+	/**
+	 * Adds a line of the index file for function, class, class-method and
+	 * class-variable names
+	 * 
+	 * @param line
+	 */
+	private void addLine(String line) {
+		addLine(fIndentifierMap, fFileMap, line, null);
+	}
+
+	public TreeMap getIdentifiers(IFile file) {
+		TreeMap treeMap = new TreeMap(new StringComparator());
+		addIdentifiers(treeMap, file);
+		return treeMap;
+	}
+
+	public TreeMap getIdentifiers(String startClazz) {
+		TreeMap treeMap = new TreeMap(new StringComparator());
+		addIdentifiers(treeMap, startClazz);
+		return treeMap;
+	}
+
+	public void addIdentifiers(TreeMap treeMap, IFile file) {
+		String line = (String) fFileMap.get(file.getProjectRelativePath()
+				.toString());
+		if (line != null) {
+			//PHPIdentifierLocation ident;
+			ArrayList allClassNames = new ArrayList();
+			addLine(treeMap, null, line, allClassNames);
+			int i = 0;
+			while (i < allClassNames.size()) {
+				String clazz = (String) allClassNames.get(i++);
+				addClassName(treeMap, clazz, allClassNames);
+			}
+		}
+	}
+
+	public void addIdentifiers(TreeMap treeMap, String startClazz) {
+		//PHPIdentifierLocation ident;
+		ArrayList allClassNames = new ArrayList();
+		addClassName(treeMap, startClazz, allClassNames);
+		int i = 0;
+		while (i < allClassNames.size()) {
+			String clazz = (String) allClassNames.get(i++);
+			addClassName(treeMap, clazz, allClassNames);
+		}
+	}
+
+	/**
+	 * @param treeMap
+	 * @param clazz
+	 * @param allClassNames
+	 */
+	private boolean addClassName(TreeMap treeMap, String clazz,
+			List allClassNames) {
+		String line;
+		PHPIdentifierLocation ident;
+		List list = getLocations(clazz);
+		if (list == null) {
+			return false;
+		}
+		boolean result = false;
+		for (int i = 0; i < list.size(); i++) {
+			ident = (PHPIdentifierLocation) list.get(i);
+			if (ident.isClass()) {
+				line = (String) fFileMap.get(ident.getFilename());
+				addLine(treeMap, null, line, allClassNames);
+				result = true;
+			}
+		}
+		return result;
+	}
+
+	/**
+	 * Adds a line of the index file for function, class, class-method and
+	 * class-variable names
+	 * 
+	 * @param line
+	 */
+	public void addLine(TreeMap treeMap, HashMap fileMap, String line,
+			List allClassNames) {
+		StringTokenizer tokenizer;
+		String phpFileName = null;
+		String token;
+		String identifier = null;
+		String classname = null;
+		String offset = null;
+		PHPIdentifierLocation phpIdentifier = null;
+		boolean tokenExists = false;
+		tokenizer = new StringTokenizer(line, "\t");
+		// first token contains the filename:
+		try {
+			if (tokenizer.hasMoreTokens()) {
+				phpFileName = tokenizer.nextToken();
+				// System.out.println(token);
+			} else {
+				return;
+			}
+			// all the other tokens are identifiers:
+			while (tokenizer.hasMoreTokens()) {
+				token = tokenizer.nextToken();
+				// System.out.println(token);
+				switch (token.charAt(0)) {
+				case 'c':
+					// class name
+					identifier = token.substring(1);
+					classname = identifier;
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.CLASS, phpFileName);
+					break;
+				case 'd':
+					// define
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.DEFINE, phpFileName);
+					break;
+				case 'e':
+					// extends <class name>
+					// not in map
+					identifier = null;
+					phpIdentifier = null;
+					if (allClassNames != null) {
+						String extName = token.substring(1);
+						if (!allClassNames.contains(extName)) {
+							allClassNames.add(extName);
+						}
+					}
+					break;
+				case 'f':
+					// function name
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.FUNCTION, phpFileName);
+					break;
+				case 'g':
+					// global variable
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.GLOBAL_VARIABLE, phpFileName);
+					break;
+				case 'i':
+					// implements <class name>
+					// not in map
+					identifier = null;
+					phpIdentifier = null;
+					if (allClassNames != null) {
+						String implName = token.substring(1);
+						if (!allClassNames.contains(implName)) {
+							allClassNames.add(implName);
+						}
+					}
+					break;
+				case 'k':
+					// constructor function name
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.CONSTRUCTOR, phpFileName);
+					break;
+				case 'm':
+					// method inside a class
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.METHOD, phpFileName, classname);
+					break;
+				case 'v':
+					// variable inside a class
+					identifier = token.substring(1);
+					phpIdentifier = new PHPIdentifierLocation(identifier,
+							PHPIdentifier.VARIABLE, phpFileName, classname);
+					break;
+				case 'o':
+					// offset information
+					identifier = null;
+					if (phpIdentifier != null) {
+						offset = token.substring(1);
+						phpIdentifier.setOffset(Integer.parseInt(offset));
+					}
+					break;
+				case 'p':
+					// PHPdoc offset information
+					identifier = null;
+					if (phpIdentifier != null) {
+						offset = token.substring(1);
+						phpIdentifier.setPHPDocOffset(Integer.parseInt(offset));
+					}
+					break;
+				case 'l':
+					// PHPdoc length information
+					identifier = null;
+					if (phpIdentifier != null) {
+						offset = token.substring(1);
+						phpIdentifier.setPHPDocLength(Integer.parseInt(offset));
+					}
+					break;
+				default:
+					PHPeclipsePlugin.log(IStatus.ERROR,
+							"Unknown token character in IdentifierIndexManager: "
+									+ token.charAt(0));
+					identifier = null;
+					phpIdentifier = null;
+					classname = null;
+				}
+				if (identifier != null && phpIdentifier != null) {
+					tokenExists = true;
+					ArrayList list = (ArrayList) treeMap.get(identifier);
+					if (list == null) {
+						list = new ArrayList();
+						list.add(phpIdentifier);
+						treeMap.put(identifier, list);
+					} else {
+						boolean flag = false;
+						for (int i = 0; i < list.size(); i++) {
+							if (list.get(i).equals(phpIdentifier)) {
+								flag = true;
+								break;
+							}
+						}
+						if (flag == false) {
+							list.add(phpIdentifier);
+						}
+					}
+				}
+			}
+			if (fileMap != null) {
+				fileMap.put(phpFileName, line);
+			}
+		} catch (Throwable e) {
+			// write to workspace/.metadata/.log file
+			PHPeclipsePlugin.log(e);
+		}
+		// if (tokenExists) {
+
+		// }
+	}
+
+	/**
+	 * Change the information for a given IFile resource
+	 * 
+	 */
+	public void changeFile(IFile fileToParse) {
+		removeFile(fileToParse);
+		addFile(fileToParse);
+	}
+
+	/**
+	 * Get a list of all PHPIdentifierLocation object's associated with an
+	 * identifier
+	 * 
+	 * @param identifier
+	 * @return
+	 */
+	public List getLocations(String identifier) {
+		List list = (List) fIndentifierMap.get(identifier);
+		if (list != null) {
+			return list;
+		}
+		return new ArrayList();
+	}
+
+	/**
+	 * Initialize (i.e. clear) the current index information
+	 * 
+	 */
+	public void initialize() {
+		fIndentifierMap = new TreeMap(new StringComparator());
+		fFileMap = new HashMap();
+	}
+
+	private void readFile() {
+		FileReader fileReader;
+		try {
+			fileReader = new FileReader(fFilename);
+			BufferedReader bufferedReader = new BufferedReader(fileReader);
+			String line;
+			while (bufferedReader.ready()) {
+				// all entries for one file are in a line
+				// separated by tabs !
+				line = bufferedReader.readLine();
+				addLine(line);
+			}
+			fileReader.close();
+		} catch (FileNotFoundException e) {
+			// ignore this
+			// TODO DialogBox which asks the user if she/he likes to build new
+			// index?
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	/**
+	 * Remove the information for a given IFile resource
+	 * 
+	 */
+	public void removeFile(IFile fileToParse) {
+		// String line = (String)
+		// fFileMap.get(fileToParse.getLocation().toString());
+		String line = (String) fFileMap.get(fileToParse
+				.getProjectRelativePath().toString());
+		if (line != null) {
+			removeLine(line);
+		}
+	}
+
+	/**
+	 * Removes a line of the index file for function, class, class-method and
+	 * class-variable names
+	 * 
+	 * @param line
+	 */
+	private void removeLine(String line) {
+		StringTokenizer tokenizer;
+		String phpFileName = null;
+		String token;
+		String identifier = null;
+		String classname = null;
+		PHPIdentifier phpIdentifier = null;
+		boolean tokenExists = false;
+		tokenizer = new StringTokenizer(line, "\t");
+		// first token contains the filename:
+		if (tokenizer.hasMoreTokens()) {
+			phpFileName = tokenizer.nextToken();
+			// System.out.println(token);
+		} else {
+			return;
+		}
+		int offset = -1;
+		// all the other tokens are identifiers:
+		while (tokenizer.hasMoreTokens()) {
+			token = tokenizer.nextToken();
+			// System.out.println(token);
+			switch (token.charAt(0)) {
+			case 'c':
+				// class name
+				identifier = token.substring(1);
+				classname = identifier;
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.CLASS, phpFileName);
+				break;
+			case 'd':
+				// define
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.DEFINE, phpFileName);
+				break;
+			case 'e':
+				// extends <class name>
+				identifier = null;
+				phpIdentifier = null;
+				break;
+			case 'f':
+				// function name
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.FUNCTION, phpFileName);
+				break;
+			case 'g':
+				// global variable
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.GLOBAL_VARIABLE, phpFileName);
+				break;
+			case 'i':
+				// implements <class name>
+				identifier = null;
+				phpIdentifier = null;
+				break;
+			case 'k':
+				// constructor function name
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.CONSTRUCTOR, phpFileName);
+				break;
+			case 'm':
+				// method inside a class
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.METHOD, phpFileName, classname);
+				break;
+			case 'o':
+				// offset information
+				identifier = null;
+				break;
+			case 'p':
+				// PHPdoc offset information
+				identifier = null;
+				break;
+			case 'l':
+				// PHPdoc length information
+				identifier = null;
+				break;
+			case 'v':
+				// variable inside a class
+				identifier = token.substring(1);
+				phpIdentifier = new PHPIdentifierLocation(identifier,
+						PHPIdentifier.VARIABLE, phpFileName, classname);
+				break;
+			default:
+				PHPeclipsePlugin.log(IStatus.ERROR,
+						"Unknown token character in IdentifierIndexManager: "
+								+ token.charAt(0));
+				identifier = null;
+				phpIdentifier = null;
+				classname = null;
+			}
+			if (identifier != null && phpIdentifier != null) {
+				ArrayList list = (ArrayList) fIndentifierMap.get(identifier);
+				if (list == null) {
+				} else {
+					for (int i = 0; i < list.size(); i++) {
+						if (list.get(i).equals(phpIdentifier)) {
+							list.remove(i);
+							break;
+						}
+					}
+					if (list.size() == 0) {
+						fIndentifierMap.remove(identifier);
+					}
+				}
+			}
+		}
+		fFileMap.remove(phpFileName);
+	}
+
+	/**
+	 * Save the current index information in the projects index file
+	 * 
+	 */
+	public void writeFile() {
+		FileWriter fileWriter;
+		try {
+			fileWriter = new FileWriter(fFilename);
+			String line;
+			Collection collection = fFileMap.values();
+			Iterator iterator = collection.iterator();
+			while (iterator.hasNext()) {
+				line = (String) iterator.next();
+				fileWriter.write(line + '\n');
+			}
+			fileWriter.close();
+		} catch (FileNotFoundException e) {
+			// ignore exception; project is deleted by user
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	/**
+	 * @param fromKey
+	 * @param toKey
+	 * @return
+	 */
+	public SortedMap getIdentifierMap() {
+		return fIndentifierMap;
+	}
+
+	synchronized public List getFileList(String filePattern) {
+		Set set = fFileMap.keySet();
+		if (set.isEmpty()) {
+			return null;
+		}
+		Iterator iter = set.iterator();
+		ArrayList list = new ArrayList();
+		String fileName;
+		int index;
+		while (iter.hasNext()) {
+			fileName = (String) iter.next();
+			if ((index = fileName.indexOf(filePattern)) != -1
+					&& fileName.length() == (index + filePattern.length())) {
+				list.add(fileName);
+			}
+		}
+		return list;
+	}
 }
\ No newline at end of file