Removed UI.
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / php / PHPCompletionProcessor.java
diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCompletionProcessor.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPCompletionProcessor.java
deleted file mode 100644 (file)
index 6648e89..0000000
+++ /dev/null
@@ -1,989 +0,0 @@
-/**********************************************************************
- 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
- **********************************************************************/
-package net.sourceforge.phpeclipse.phpeditor.php;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Set;
-import java.util.SortedMap;
-
-import net.sourceforge.phpdt.core.ICompilationUnit;
-import net.sourceforge.phpdt.core.IJavaElement;
-import net.sourceforge.phpdt.core.IMethod;
-import net.sourceforge.phpdt.core.IType;
-import net.sourceforge.phpdt.core.JavaCore;
-import net.sourceforge.phpdt.core.ToolFactory;
-import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
-import net.sourceforge.phpdt.core.compiler.InvalidInputException;
-import net.sourceforge.phpdt.internal.compiler.DefaultErrorHandlingPolicies;
-import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
-import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
-import net.sourceforge.phpdt.internal.compiler.parser.SyntaxError;
-import net.sourceforge.phpdt.internal.compiler.parser.UnitParser;
-import net.sourceforge.phpdt.internal.compiler.parser.VariableInfo;
-import net.sourceforge.phpdt.internal.compiler.problem.DefaultProblemFactory;
-import net.sourceforge.phpdt.internal.compiler.problem.ProblemReporter;
-import net.sourceforge.phpdt.internal.corext.template.php.JavaContext;
-import net.sourceforge.phpdt.internal.corext.template.php.JavaContextType;
-import net.sourceforge.phpdt.internal.ui.text.PHPCodeReader;
-import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
-import net.sourceforge.phpdt.internal.ui.text.java.PHPCompletionProposalComparator;
-import net.sourceforge.phpdt.internal.ui.text.template.BuiltInEngine;
-import net.sourceforge.phpdt.internal.ui.text.template.DeclarationEngine;
-import net.sourceforge.phpdt.internal.ui.text.template.LocalVariableProposal;
-import net.sourceforge.phpdt.internal.ui.text.template.contentassist.TemplateEngine;
-import net.sourceforge.phpdt.ui.IWorkingCopyManager;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
-import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
-import net.sourceforge.phpeclipse.phpeditor.PHPSyntaxRdr;
-
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IProject;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.ITextViewer;
-import org.eclipse.jface.text.Region;
-import org.eclipse.jface.text.TextPresentation;
-import org.eclipse.jface.text.contentassist.ICompletionProposal;
-import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
-import org.eclipse.jface.text.contentassist.IContextInformation;
-import org.eclipse.jface.text.contentassist.IContextInformationExtension;
-import org.eclipse.jface.text.contentassist.IContextInformationPresenter;
-import org.eclipse.jface.text.contentassist.IContextInformationValidator;
-import org.eclipse.jface.text.templates.TemplateContextType;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.ui.IEditorPart;
-import org.eclipse.ui.IFileEditorInput;
-
-//import com.quantum.ExternalInterface;
-// import com.quantum.util.connection.NotConnectedException;
-
-/**
- * Example PHP completion processor.
- */
-public class PHPCompletionProcessor implements IContentAssistProcessor {
-  /**
-   * Simple content assist tip closer. The tip is valid in a range of 5 characters around its popup location.
-   */
-  protected static class Validator implements IContextInformationValidator, IContextInformationPresenter {
-    protected int fInstallOffset;
-
-    /*
-     * @see IContextInformationValidator#isContextInformationValid(int)
-     */
-    public boolean isContextInformationValid(int offset) {
-      return Math.abs(fInstallOffset - offset) < 5;
-    }
-
-    /*
-     * @see IContextInformationValidator#install(IContextInformation, ITextViewer, int)
-     */
-    public void install(IContextInformation info, ITextViewer viewer, int offset) {
-      fInstallOffset = offset;
-    }
-
-    /*
-     * @see org.eclipse.jface.text.contentassist.IContextInformationPresenter#updatePresentation(int, TextPresentation)
-     */
-    public boolean updatePresentation(int documentPosition, TextPresentation presentation) {
-      return false;
-    }
-  };
-
-  private static class ContextInformationWrapper implements IContextInformation, IContextInformationExtension {
-    private final IContextInformation fContextInformation;
-
-    private int fPosition;
-
-    public ContextInformationWrapper(IContextInformation contextInformation) {
-      fContextInformation = contextInformation;
-    }
-
-    /*
-     * @see IContextInformation#getContextDisplayString()
-     */
-    public String getContextDisplayString() {
-      return fContextInformation.getContextDisplayString();
-    }
-
-    /*
-     * @see IContextInformation#getImage()
-     */
-    public Image getImage() {
-      return fContextInformation.getImage();
-    }
-
-    /*
-     * @see IContextInformation#getInformationDisplayString()
-     */
-    public String getInformationDisplayString() {
-      return fContextInformation.getInformationDisplayString();
-    }
-
-    /*
-     * @see IContextInformationExtension#getContextInformationPosition()
-     */
-    public int getContextInformationPosition() {
-      return fPosition;
-    }
-
-    public void setContextInformationPosition(int position) {
-      fPosition = position;
-    }
-  };
-
-  private class TableName {
-    String fTableName;
-
-    TableName() {
-      fTableName = null;
-    }
-
-    /**
-     * @return Returns the tableName.
-     */
-    public String getTableName() {
-      if (fTableName == null) {
-        return "<!--no-table-->";
-      }
-      return fTableName;
-    }
-
-    /**
-     * @param tableName
-     *          The tableName to set.
-     */
-    public void setTableName(String tableName) {
-      fTableName = tableName;
-    }
-  }
-
-  private char[] fProposalAutoActivationSet;
-
-  protected IContextInformationValidator fValidator = new Validator();
-
-  private TemplateEngine fTemplateEngine;
-
-  private PHPCompletionProposalComparator fComparator;
-
-  private int fNumberOfComputedResults = 0;
-
-  private IEditorPart fEditor;
-
-  protected IWorkingCopyManager fManager;
-
-  public PHPCompletionProcessor(IEditorPart editor) {
-    fEditor = editor;
-    fManager = PHPeclipsePlugin.getDefault().getWorkingCopyManager();
-    TemplateContextType contextType = PHPeclipsePlugin.getDefault().getTemplateContextRegistry().getContextType("php"); //$NON-NLS-1$
-    if (contextType != null)
-      fTemplateEngine = new TemplateEngine(contextType);
-    fComparator = new PHPCompletionProposalComparator();
-  }
-
-  /**
-   * Tells this processor to order the proposals alphabetically.
-   * 
-   * @param order
-   *          <code>true</code> if proposals should be ordered.
-   */
-  public void orderProposalsAlphabetically(boolean order) {
-    fComparator.setOrderAlphabetically(order);
-  }
-
-  /**
-   * Sets this processor's set of characters triggering the activation of the completion proposal computation.
-   * 
-   * @param activationSet
-   *          the activation set
-   */
-  public void setCompletionProposalAutoActivationCharacters(char[] activationSet) {
-    fProposalAutoActivationSet = activationSet;
-  }
-
-  /*
-   * (non-Javadoc) Method declared on IContentAssistProcessor
-   */
-  public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int documentOffset) {
-    int contextInformationPosition = guessContextInformationPosition(viewer, documentOffset);
-    return internalComputeCompletionProposals(viewer, documentOffset, contextInformationPosition);
-  }
-
-  private int getLastToken(List list, ITextViewer viewer, int completionPosition, JavaContext context, TableName tableName) {
-    IDocument document = viewer.getDocument();
-    int start = context.getStart();
-    int end = context.getEnd();
-    String startText;
-    int lastSignificantToken = ITerminalSymbols.TokenNameEOF;
-    try {
-      // begin search 2 lines behind of this
-      int j = start;
-      if (j != 0) {
-        char ch;
-        while (j-- > 0) {
-          ch = document.getChar(j);
-          if (ch == '\n') {
-            break;
-          }
-        }
-        while (j-- > 0) {
-          ch = document.getChar(j);
-          if (ch == '\n') {
-            break;
-          }
-        }
-      }
-      if (j != start) {
-        // scan the line for the dereferencing operator '->'
-        startText = document.get(j, start - j);
-        if (Scanner.DEBUG) {
-          System.out.println(startText);
-        }
-        int token = ITerminalSymbols.TokenNameEOF;
-        //        token = getLastSQLToken(startText);
-        tableName.setTableName(getLastSQLTableName(startText));
-        Scanner scanner = ToolFactory.createScanner(false, false, false);
-        scanner.setSource(startText.toCharArray());
-        scanner.setPHPMode(true);
-        int beforeLastToken = ITerminalSymbols.TokenNameEOF;
-        int lastToken = ITerminalSymbols.TokenNameEOF;
-        char[] ident = null;
-        try {
-          token = scanner.getNextToken();
-          lastToken = token;
-          while (token != ITerminalSymbols.TokenNameERROR && token != ITerminalSymbols.TokenNameEOF) {
-            beforeLastToken = lastToken;
-            if (token == ITerminalSymbols.TokenNameVariable) {
-              ident = scanner.getCurrentTokenSource();
-              if (ident.length == 5 && ident[0] == '$' && ident[1] == 't' && ident[2] == 'h' && ident[3] == 'i' && ident[4] == 's') {
-                token = ITerminalSymbols.TokenNamethis_PHP_COMPLETION;
-              }
-            }
-            lastToken = token;
-            // System.out.println(scanner.toStringAction(lastToken));
-            token = scanner.getNextToken();
-          }
-        } catch (InvalidInputException e1) {
-        } catch (SyntaxError e) {
-        }
-        switch (lastToken) {
-        case ITerminalSymbols.TokenNameMINUS_GREATER:
-          // dereferencing operator '->' found
-          lastSignificantToken = ITerminalSymbols.TokenNameMINUS_GREATER;
-          if (beforeLastToken == ITerminalSymbols.TokenNameVariable) {
-            lastSignificantToken = ITerminalSymbols.TokenNameVariable;
-            list.set(0, ident);
-          } else if (beforeLastToken == ITerminalSymbols.TokenNamethis_PHP_COMPLETION) {
-            lastSignificantToken = ITerminalSymbols.TokenNamethis_PHP_COMPLETION;
-            list.set(0, ident);
-          }
-          break;
-        case ITerminalSymbols.TokenNamenew:
-          lastSignificantToken = ITerminalSymbols.TokenNamenew;
-          break;
-        }
-      }
-    } catch (BadLocationException e) {
-    }
-    return lastSignificantToken;
-  }
-
-  String getSQLTableName(String sqlText, int start) {
-    int tableNameStart = -1;
-    int currentCharacterPosition = start + 1;
-    char ch;
-    try {
-      while (true) {
-        ch = sqlText.charAt(currentCharacterPosition++);
-        if (tableNameStart == -1 && Scanner.isPHPIdentifierStart(ch)) {
-          tableNameStart = currentCharacterPosition - 1;
-        } else {
-          if (!Scanner.isPHPIdentifierPart(ch)) {
-            return sqlText.substring(tableNameStart, currentCharacterPosition - 1);
-          }
-        }
-      }
-    } catch (IndexOutOfBoundsException e) {
-      if (tableNameStart >= 0) {
-        return sqlText.substring(tableNameStart, currentCharacterPosition - 1);
-      }
-    }
-    return "";
-  }
-
-  private String getLastSQLTableName(String startText) {
-    int token;
-    // scan for sql identifiers
-    char ch = ' ';
-    int currentSQLPosition = startText.length();
-    int identEnd = -1;
-    String ident = null;
-    boolean whiteSpace = true;
-    try {
-      while (true) {
-        ch = startText.charAt(--currentSQLPosition);
-        if (ch >= 'A' && ch <= 'Z') {
-          if (identEnd < 0) {
-            identEnd = currentSQLPosition + 1;
-          }
-        } else if (ch >= 'a' && ch <= 'z') {
-          if (identEnd < 0) {
-            identEnd = currentSQLPosition + 1;
-          }
-        } else if (identEnd >= 0) {
-          ident = startText.substring(currentSQLPosition + 1, identEnd);
-          // select -- from -- where --
-          // update -- set -- where --
-          // insert into -- ( -- ) values ( -- )
-          if (ident.length() >= 4 && ident.length() <= 6) {
-            ident = ident.toLowerCase();
-            switch (ident.length()) {
-            //              case 3 :
-            //                if (ident.equals("set")) {
-            //                  // System.out.println("set");
-            //                  token = ITerminalSymbols.TokenNameSQLset;
-            //                  return token;
-            //                }
-            //                break;
-            case 4:
-              if (ident.equals("from")) {
-                //                  System.out.println("from");
-                token = ITerminalSymbols.TokenNameSQLfrom;
-                return getSQLTableName(startText, identEnd);
-              } else if (ident.equals("into")) {
-                //                System.out.println("into");
-                token = ITerminalSymbols.TokenNameSQLinto;
-                return getSQLTableName(startText, identEnd);
-              }
-              break;
-            //              case 5 :
-            //                if (ident.equals("where")) {
-            //                  // System.out.println("where");
-            //                  token = ITerminalSymbols.TokenNameSQLwhere;
-            //                  return token;
-            //                }
-            //                break;
-            case 6:
-              //                if (ident.equals("select")) {
-              //                  // System.out.println("select");
-              //                  token = ITerminalSymbols.TokenNameSQLselect;
-              //                  return token;
-              //                } else if (ident.equals("insert")) {
-              //                  // System.out.println("insert");
-              //                  token = ITerminalSymbols.TokenNameSQLinsert;
-              //                  return token;
-              //                } else
-              if (ident.equals("update")) {
-                //                  System.out.println("update");
-                token = ITerminalSymbols.TokenNameSQLupdate;
-                return getSQLTableName(startText, identEnd);
-              }
-              //                else if (ident.equals("values")) {
-              //                  // System.out.println("values");
-              //                  token = ITerminalSymbols.TokenNameSQLvalues;
-              //                  return token;
-              //                }
-              break;
-            }
-          }
-          whiteSpace = false;
-          identEnd = -1;
-        } else if (Character.isWhitespace(ch)) {
-        } else {
-          whiteSpace = false;
-        }
-      }
-    } catch (IndexOutOfBoundsException e) {
-    }
-    return "<!--no-table-->";
-  }
-
-  /**
-   * Detect the last significant SQL token in the text before the completion
-   * 
-   * @param startText
-   */
-  private int getLastSQLToken(String startText) {
-    int token;
-    // scan for sql identifiers
-    char ch = ' ';
-    int currentSQLPosition = startText.length();
-    int identEnd = -1;
-    String ident = null;
-    boolean whiteSpace = true;
-    try {
-      while (true) {
-        ch = startText.charAt(--currentSQLPosition);
-        if (ch >= 'A' && ch <= 'Z') {
-          if (identEnd < 0) {
-            identEnd = currentSQLPosition + 1;
-          }
-        } else if (ch >= 'a' && ch <= 'z') {
-          if (identEnd < 0) {
-            identEnd = currentSQLPosition + 1;
-          }
-        } else if (identEnd >= 0) {
-          ident = startText.substring(currentSQLPosition + 1, identEnd);
-          // select -- from -- where --
-          // update -- set -- where --
-          // insert into -- ( -- ) values ( -- )
-          if (ident.length() >= 3 && ident.length() <= 6) {
-            ident = ident.toLowerCase();
-            switch (ident.length()) {
-            case 3:
-              if (ident.equals("set")) {
-                //                  System.out.println("set");
-                token = ITerminalSymbols.TokenNameSQLset;
-                return token;
-              }
-              break;
-            case 4:
-              if (ident.equals("from")) {
-                //                  System.out.println("from");
-                token = ITerminalSymbols.TokenNameSQLfrom;
-                //getSQLTableName();
-                return token;
-              } else if (ident.equals("into")) {
-                //                System.out.println("into");
-                token = ITerminalSymbols.TokenNameSQLinto;
-                return token;
-              }
-              break;
-            case 5:
-              if (ident.equals("where")) {
-                //                  System.out.println("where");
-                token = ITerminalSymbols.TokenNameSQLwhere;
-                return token;
-              }
-              break;
-            case 6:
-              if (ident.equals("select")) {
-                //                  System.out.println("select");
-                token = ITerminalSymbols.TokenNameSQLselect;
-                return token;
-              } else if (ident.equals("insert")) {
-                //                  System.out.println("insert");
-                token = ITerminalSymbols.TokenNameSQLinsert;
-                return token;
-              } else if (ident.equals("update")) {
-                //                  System.out.println("update");
-                token = ITerminalSymbols.TokenNameSQLupdate;
-                return token;
-              } else if (ident.equals("values")) {
-                //                System.out.println("values");
-                token = ITerminalSymbols.TokenNameSQLvalues;
-                return token;
-              }
-              break;
-            }
-          }
-          whiteSpace = false;
-          identEnd = -1;
-        } else if (Character.isWhitespace(ch)) {
-        } else {
-          whiteSpace = false;
-        }
-      }
-    } catch (IndexOutOfBoundsException e) {
-    }
-    return ITerminalSymbols.TokenNameEOF;
-  }
-
-  private ICompletionProposal[] internalComputeCompletionProposals(ITextViewer viewer, int offset, int contextOffset) {
-    ICompilationUnit unit = fManager.getWorkingCopy(fEditor.getEditorInput());
-    IDocument document = viewer.getDocument();
-    IFile file = null;
-    IProject project = null;
-    if (offset > 0) {
-      PHPEditor editor = null;
-      if (fEditor != null && (fEditor instanceof PHPEditor)) {
-        editor = (PHPEditor) fEditor;
-        file = ((IFileEditorInput) editor.getEditorInput()).getFile();
-        project = file.getProject();
-      }
-    }
-
-    Point selection = viewer.getSelectedRange();
-    // remember selected text
-    String selectedText = null;
-    if (selection.y != 0) {
-      try {
-        selectedText = document.get(selection.x, selection.y);
-      } catch (BadLocationException e) {
-      }
-    }
-
-    JavaContextType phpContextType = (JavaContextType) PHPeclipsePlugin.getDefault().getTemplateContextRegistry().getContextType(
-        "php"); //$NON-NLS-1$
-    JavaContext context = (JavaContext) phpContextType.createContext(document, offset, selection.y, unit);
-    context.setVariable("selection", selectedText); //$NON-NLS-1$
-    String prefix = context.getKey();
-
-    HashMap methodVariables = null;
-    HashMap typeVariables = null;
-    HashMap unitVariables = null;
-    ICompilationUnit compilationUnit = (ICompilationUnit) context.findEnclosingElement(IJavaElement.COMPILATION_UNIT);
-    //    if (compilationUnit != null) {
-    //      unitVariables = ((CompilationUnit) compilationUnit).variables;
-    //    }
-    IType type = (IType) context.findEnclosingElement(IJavaElement.TYPE);
-    //    if (type != null) {
-    //      typeVariables = ((SourceType) type).variables;
-    //    }
-    IMethod method = (IMethod) context.findEnclosingElement(IJavaElement.METHOD);
-    //    if (method != null) {
-    //      methodVariables = ((SourceMethod) method).variables;
-    //    }
-
-    boolean emptyPrefix = prefix == null || prefix.equals("");
-    IPHPCompletionProposal[] localVariableResults = new IPHPCompletionProposal[0];
-
-    if (!emptyPrefix && prefix.length() >= 1 && prefix.charAt(0) == '$') { // php Variable ?
-      String lowerCasePrefix = prefix.toLowerCase();
-      HashSet localVariables = new HashSet();
-      if (compilationUnit != null) {
-        unitVariables = getUnitVariables(unitVariables, compilationUnit);
-        getVariableProposals(localVariables, viewer, project, context, unitVariables, lowerCasePrefix, 94);
-      }
-      if (method != null) {
-        methodVariables = getMethodVariables(methodVariables, method);
-        getVariableProposals(localVariables, viewer, project, context, methodVariables, lowerCasePrefix, 99);
-      }
-      if (!localVariables.isEmpty()) {
-        localVariableResults = (IPHPCompletionProposal[]) localVariables.toArray(new IPHPCompletionProposal[localVariables.size()]);
-      }
-    }
-
-    TableName sqlTable = new TableName();
-    ArrayList list = new ArrayList();
-    list.add(null);
-    int lastSignificantToken = getLastToken(list, viewer, offset, context, sqlTable);
-    boolean useClassMembers = (lastSignificantToken == ITerminalSymbols.TokenNameMINUS_GREATER)
-        || (lastSignificantToken == ITerminalSymbols.TokenNameVariable) || (lastSignificantToken == ITerminalSymbols.TokenNamenew)
-        || (lastSignificantToken == ITerminalSymbols.TokenNamethis_PHP_COMPLETION);
-
-    if (fTemplateEngine != null) {
-      IPHPCompletionProposal[] templateResults = new IPHPCompletionProposal[0];
-      ICompletionProposal[] results;
-      if (!emptyPrefix) {
-        fTemplateEngine.reset();
-        fTemplateEngine.complete(viewer, offset, unit);
-        templateResults = fTemplateEngine.getResults();
-      }
-      // TODO delete this
-      IPHPCompletionProposal[] identifierResults = new IPHPCompletionProposal[0];
-
-      // declarations stored in file project.index on project level
-      IPHPCompletionProposal[] declarationResults = new IPHPCompletionProposal[0];
-      if (project != null) {
-        DeclarationEngine declarationEngine;
-        JavaContextType contextType = (JavaContextType) PHPeclipsePlugin.getDefault().getTemplateContextRegistry().getContextType(
-            "php"); //$NON-NLS-1$
-        if (contextType != null) {
-          IdentifierIndexManager indexManager = PHPeclipsePlugin.getDefault().getIndexManager(project);
-          SortedMap sortedMap;
-          declarationEngine = new DeclarationEngine(project, contextType, lastSignificantToken, file);
-          if (lastSignificantToken == ITerminalSymbols.TokenNamethis_PHP_COMPLETION) {
-            // complete '$this->'
-            sortedMap = indexManager.getIdentifiers(file);
-            declarationEngine.completeObject(viewer, offset, sortedMap, unit);
-          } else {
-            String typeRef = null;
-            char[] varName = (char[]) list.get(0);
-            if (varName != null) {
-              if (method != null) {
-                methodVariables = getMethodVariables(methodVariables, method);
-                VariableInfo info = (VariableInfo) methodVariables.get(new String(varName));
-                if (info != null && info.typeIdentifier != null) {
-                  typeRef = new String(info.typeIdentifier);
-                }
-
-              }
-            }
-            if (typeRef != null) {
-              // complete '$variable->' with type information
-              sortedMap = indexManager.getIdentifiers(typeRef);
-              declarationEngine.completeObject(viewer, offset, sortedMap, unit);
-            } else {
-              // complete '$variable->' without type information
-              sortedMap = indexManager.getIdentifierMap();
-              declarationEngine.complete(viewer, offset, sortedMap, unit);
-            }
-          }
-          declarationResults = declarationEngine.getResults();
-        }
-      }
-      // built in function names from phpsyntax.xml
-      ArrayList syntaxbuffer = PHPSyntaxRdr.getSyntaxData();
-      IPHPCompletionProposal[] builtinResults = new IPHPCompletionProposal[0];
-      if ((!useClassMembers) && syntaxbuffer != null) {
-        BuiltInEngine builtinEngine;
-        String proposal;
-        JavaContextType contextType = (JavaContextType) PHPeclipsePlugin.getDefault().getTemplateContextRegistry().getContextType(
-            "php"); //$NON-NLS-1$
-        if (contextType != null) {
-          builtinEngine = new BuiltInEngine(contextType);
-          builtinEngine.complete(viewer, offset, syntaxbuffer, unit);
-          builtinResults = builtinEngine.getResults();
-        }
-      }
-//      ICompletionProposal[] sqlResults = new ICompletionProposal[0];
-//      if (project != null) {
-//        sqlResults = getSQLProposals(viewer, project, context, prefix, sqlTable);
-//      }
-      // concatenate the result arrays
-      IPHPCompletionProposal[] total;
-      total = new IPHPCompletionProposal[localVariableResults.length + templateResults.length + identifierResults.length
-          + builtinResults.length + declarationResults.length];// + sqlResults.length];
-      System.arraycopy(templateResults, 0, total, 0, templateResults.length);
-      System.arraycopy(identifierResults, 0, total, templateResults.length, identifierResults.length);
-      System.arraycopy(builtinResults, 0, total, templateResults.length + identifierResults.length, builtinResults.length);
-      System.arraycopy(declarationResults, 0, total, templateResults.length + identifierResults.length + builtinResults.length,
-          declarationResults.length);
-//      System.arraycopy(sqlResults, 0, total, templateResults.length + identifierResults.length + builtinResults.length
-//          + declarationResults.length, sqlResults.length);
-//      System.arraycopy(localVariableResults, 0, total, templateResults.length + identifierResults.length + builtinResults.length
-//          + declarationResults.length + sqlResults.length, localVariableResults.length);
-      System.arraycopy(localVariableResults, 0, total, templateResults.length + identifierResults.length + builtinResults.length
-          + declarationResults.length, localVariableResults.length);
-      results = total;
-      fNumberOfComputedResults = (results == null ? 0 : results.length);
-      /*
-       * Order here and not in result collector to make sure that the order applies to all proposals and not just those of the
-       * compilation unit.
-       */
-      return order(results);
-    }
-    return new IPHPCompletionProposal[0];
-  }
-  /**
-   * @param unitVariables
-   * @param unit
-   */
-  private HashMap getUnitVariables(HashMap unitVariables, ICompilationUnit unit) {
-    if (unitVariables == null) {
-      try {
-        String unitText = unit.getSource();
-        unitVariables = new HashMap();
-        
-        ProblemReporter problemReporter = new ProblemReporter(DefaultErrorHandlingPolicies.exitAfterAllProblems(),
-            new CompilerOptions(JavaCore.getOptions()), new DefaultProblemFactory());
-        UnitParser parser = new UnitParser(problemReporter);
-        parser.compilationUnit = new CompilationUnitDeclaration(problemReporter, null, unitText.length());
-        parser.parse(unitText, unitVariables);
-        
-      } catch (Exception e) {
-        // TODO Auto-generated catch block
-        e.printStackTrace();
-        PHPeclipsePlugin.log(e);
-      }
-    }
-    return unitVariables;
-  }
-  
-  /**
-   * @param methodVariables
-   * @param method
-   */
-  private HashMap getMethodVariables(HashMap methodVariables, IMethod method) {
-    if (methodVariables == null) {
-      try {
-        String methodText = method.getSource();
-        methodVariables = new HashMap();
-        ProblemReporter problemReporter = new ProblemReporter(DefaultErrorHandlingPolicies.exitAfterAllProblems(),
-            new CompilerOptions(JavaCore.getOptions()), new DefaultProblemFactory());
-        UnitParser parser = new UnitParser(problemReporter);
-        parser.compilationUnit = new CompilationUnitDeclaration(problemReporter, null, methodText.length());
-        parser.parseFunction(methodText, methodVariables);
-      } catch (Exception e) {
-        // TODO Auto-generated catch block
-        e.printStackTrace();
-        PHPeclipsePlugin.log(e);
-      }
-    }
-    return methodVariables;
-  }
-
-  /**
-   * @param viewer
-   * @param project
-   * @param context
-   * @param prefix
-   * @return
-   */
-  private void getVariableProposals(HashSet localVariables, ITextViewer viewer, IProject project, JavaContext context,
-      HashMap variables, String prefix, int relevance) {
-//    try {
-      int start = context.getStart();
-      int end = context.getEnd();
-      IRegion region = new Region(start, end - start);
-      //      IMethod method = (IMethod) context.findEnclosingElement(IJavaElement.METHOD);
-      //      if (method != null && (method instanceof SourceMethod) && ((SourceMethod) method).variables != null) {
-      //        HashMap map = ((SourceMethod) method).variables;
-      Set set = variables.keySet();
-      Iterator iter = set.iterator();
-      String varName;
-      boolean matchesVarName;
-      while (iter.hasNext()) {
-        varName = (String) iter.next();
-        if (varName.length() >= prefix.length()) {
-          matchesVarName = true;
-          for (int i = 0; i < prefix.length(); i++) {
-            if (prefix.charAt(i) != Character.toLowerCase(varName.charAt(i))) {
-              matchesVarName = false;
-              break;
-            }
-          }
-          if (matchesVarName) {
-            LocalVariableProposal prop;
-            //            if (varName.length == prefix.length()) {
-            //              prop = new LocalVariableProposal(new String(varName), region, viewer, relevance-10);
-            //            } else {
-            prop = new LocalVariableProposal(new String(varName), region, viewer, relevance);
-            //            }
-            localVariables.add(prop);
-          }
-        }
-      }
-      //      }
-
-      //      char[] varName;
-      //      boolean matchesVarName;
-      //      if (method != null) {
-      //        ISourceRange range = method.getSourceRange();
-      //        char[] source = method.getSource().toCharArray();
-      //        Scanner scanner = new Scanner();
-      //        scanner.setSource(source);
-      //        scanner.phpMode = true;
-      //        int token = Scanner.TokenNameWHITESPACE;
-      //        while ((token = scanner.getNextToken()) != Scanner.TokenNameEOF) {
-      //          if (token == Scanner.TokenNameVariable) {
-      //            varName = scanner.getCurrentTokenSource();
-      //            if (varName.length >= prefix.length()) {
-      //              matchesVarName = true;
-      //              for (int i = 0; i < prefix.length(); i++) {
-      //                if (prefix.charAt(i) != varName[i]) {
-      //                  matchesVarName = false;
-      //                  break;
-      //                }
-      //              }
-      //              if (matchesVarName) {
-      //                LocalVariableProposal prop = new LocalVariableProposal(new String(varName), region, viewer);
-      //                if (varName.length == prefix.length()) {
-      //                  prop.setRelevance(98);
-      //                }
-      //                localVariables.add(prop);
-      //              }
-      //            }
-      //          }
-      //        }
-      //      }
-    //    } catch (Throwable e) {
-    //      // ignore - Syntax exceptions could occur, if there are syntax errors !
-    //    }
-  }
-
-  /**
-   * @param viewer
-   * @param project
-   * @param context
-   * @param prefix
-   * @param sqlTable
-   * @param sqlResults
-   * @return
-   */
-//  private ICompletionProposal[] getSQLProposals(ITextViewer viewer, IProject project, DocumentTemplateContext context,
-//      String prefix, TableName sqlTable) {
-//    ICompletionProposal[] sqlResults = new ICompletionProposal[0];
-//    // Get The Database bookmark from the Quantum SQL plugin:
-//    //    BookmarkCollection sqlBookMarks = BookmarkCollection.getInstance();
-//    //    if (sqlBookMarks != null) {
-//    String bookmarkString = ProjectPrefUtil.getMiscProjectsPreferenceValue(project, IPreferenceConstants.PHP_BOOKMARK_DEFAULT);
-//    if (bookmarkString != null && !bookmarkString.equals("")) {
-//      String[] bookmarks = ExternalInterface.getBookmarkNames();
-//      boolean foundBookmark = false;
-//      for (int i = 0; i < bookmarks.length; i++) {
-//        if (bookmarks[i].equals(bookmarkString)) {
-//          foundBookmark = true;
-//        }
-//      }
-//      if (!foundBookmark) {
-//        return sqlResults;
-//      }
-//      //        Bookmark bookmark = sqlBookMarks.find(bookmarkString);
-//      ArrayList sqlList = new ArrayList();
-//      if (!ExternalInterface.isBookmarkConnected(bookmarkString)) {
-//        ExternalInterface.connectBookmark(bookmarkString, null);
-//        if (!ExternalInterface.isBookmarkConnected(bookmarkString)) {
-//          return sqlResults;
-//        }
-//      }
-//      //      if (ExternalInterface.isBookmarkConnected(bookmarkString)) {
-//      try {
-//         int start = context.getStart();
-//        int end = context.getEnd();
-//        String foundSQLTableName = sqlTable.getTableName();
-//        String tableName;
-//        String columnName;
-//        String prefixWithoutDollar = prefix;
-//        boolean isDollarPrefix = false;
-//        if (prefix.length() > 0 && prefix.charAt(0) == '$') {
-//          prefixWithoutDollar = prefix.substring(1);
-//          isDollarPrefix = true;
-//        }
-//        IRegion region = new Region(start, end - start);
-//        ResultSet set;
-//        if (!isDollarPrefix) {
-//          String[] tableNames = ExternalInterface.getMatchingTableNames(null, bookmarkString, prefixWithoutDollar, null, false);
-//          for (int i = 0; i < tableNames.length; i++) {
-//            sqlList.add(new SQLProposal(tableNames[i], context, region, viewer, PHPUiImages.get(PHPUiImages.IMG_TABLE)));
-//          }
-//        }
-//
-//        String[] columnNames = ExternalInterface.getMatchingColumnNames(null, bookmarkString, prefixWithoutDollar, null, false);
-//        for (int i = 0; i < columnNames.length; i++) {
-//          sqlList.add(new SQLProposal(columnNames[i], context, region, viewer, PHPUiImages.get(PHPUiImages.IMG_TABLE)));
-//        }
-//        
-//        sqlResults = new IPHPCompletionProposal[sqlList.size()];
-//        for (int i = 0; i < sqlList.size(); i++) {
-//          sqlResults[i] = (SQLProposal) sqlList.get(i);
-//        }
-//      } catch (Exception /* NotConnectedException */ e) {
-//        
-//      }
-//      //      }
-//    }
-//    //    }
-//    return sqlResults;
-//  }
-
-  private boolean looksLikeMethod(PHPCodeReader reader) throws IOException {
-    int curr = reader.read();
-    while (curr != PHPCodeReader.EOF && Character.isWhitespace((char) curr))
-      curr = reader.read();
-
-    if (curr == PHPCodeReader.EOF)
-      return false;
-
-    return Scanner.isPHPIdentifierPart((char) curr) || Scanner.isPHPIdentifierStart((char) curr);
-  }
-
-  private int guessContextInformationPosition(ITextViewer viewer, int offset) {
-    int contextPosition = offset;
-    IDocument document = viewer.getDocument();
-    try {
-
-      PHPCodeReader reader = new PHPCodeReader();
-      reader.configureBackwardReader(document, offset, true, true);
-
-      int nestingLevel = 0;
-
-      int curr = reader.read();
-      while (curr != PHPCodeReader.EOF) {
-
-        if (')' == (char) curr)
-          ++nestingLevel;
-
-        else if ('(' == (char) curr) {
-          --nestingLevel;
-
-          if (nestingLevel < 0) {
-            int start = reader.getOffset();
-            if (looksLikeMethod(reader))
-              return start + 1;
-          }
-        }
-
-        curr = reader.read();
-      }
-    } catch (IOException e) {
-    }
-    return contextPosition;
-  }
-
-  /**
-   * @see IContentAssistProcessor#computeContextInformation(ITextViewer, int)
-   */
-  public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset) {
-    int contextInformationPosition = guessContextInformationPosition(viewer, offset);
-    List result = addContextInformations(viewer, contextInformationPosition);
-    return (IContextInformation[]) result.toArray(new IContextInformation[result.size()]);
-  }
-
-  private List addContextInformations(ITextViewer viewer, int offset) {
-    ICompletionProposal[] proposals = internalComputeCompletionProposals(viewer, offset, -1);
-    List result = new ArrayList();
-    for (int i = 0; i < proposals.length; i++) {
-      IContextInformation contextInformation = proposals[i].getContextInformation();
-      if (contextInformation != null) {
-        ContextInformationWrapper wrapper = new ContextInformationWrapper(contextInformation);
-        wrapper.setContextInformationPosition(offset);
-        result.add(wrapper);
-      }
-    }
-    return result;
-  }
-
-  /**
-   * Order the given proposals.
-   */
-  private ICompletionProposal[] order(ICompletionProposal[] proposals) {
-    Arrays.sort(proposals, fComparator);
-    //    int len = proposals.length;
-    //    if (len > 10) {
-    //      len = 10;
-    //    }
-    //    for (int i = 0; i < len; i++) {
-    //      System.out.println(proposals[i].getDisplayString());
-    //    }
-    return proposals;
-  }
-
-  /*
-   * (non-Javadoc) Method declared on IContentAssistProcessor
-   */
-  public char[] getCompletionProposalAutoActivationCharacters() {
-    return fProposalAutoActivationSet;
-    //    return null; // new char[] { '$' };
-  }
-
-  /*
-   * (non-Javadoc) Method declared on IContentAssistProcessor
-   */
-  public char[] getContextInformationAutoActivationCharacters() {
-    return new char[] {};
-  }
-
-  /*
-   * (non-Javadoc) Method declared on IContentAssistProcessor
-   */
-  public IContextInformationValidator getContextInformationValidator() {
-    return fValidator;
-  }
-
-  /*
-   * (non-Javadoc) Method declared on IContentAssistProcessor
-   */
-  public String getErrorMessage() {
-    return null;
-  }
-}
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