diff options
Diffstat (limited to 'bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/contentassist/JavaParameterListValidator.java')
| -rw-r--r-- | bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/contentassist/JavaParameterListValidator.java | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/contentassist/JavaParameterListValidator.java b/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/contentassist/JavaParameterListValidator.java deleted file mode 100644 index 633a4c24bd..0000000000 --- a/bundles/org.eclipse.jst.jsp.ui/src/org/eclipse/jst/jsp/ui/internal/contentassist/JavaParameterListValidator.java +++ /dev/null @@ -1,228 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004, 2007 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.jst.jsp.ui.internal.contentassist; - -import org.eclipse.jface.text.Assert; -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.TextPresentation; -import org.eclipse.jface.text.contentassist.IContextInformation; -import org.eclipse.jface.text.contentassist.IContextInformationPresenter; -import org.eclipse.jface.text.contentassist.IContextInformationValidator; -import org.eclipse.swt.SWT; -import org.eclipse.swt.custom.StyleRange; - - -/** - * @plannedfor 1.0 - */ -public class JavaParameterListValidator implements IContextInformationValidator, IContextInformationPresenter { - - private int fPosition; - private ITextViewer fViewer; - private IContextInformation fInformation; - - private int fCurrentParameter; - - /** - * @see IContextInformationValidator#install(IContextInformation, - * ITextViewer, int) - * @see IContextInformationPresenter#install(IContextInformation, - * ITextViewer, int) - */ - public void install(IContextInformation info, ITextViewer viewer, int documentPosition) { - fPosition = documentPosition; - fViewer = viewer; - fInformation = info; - - fCurrentParameter = -1; - } - - private int getCommentEnd(IDocument d, int pos, int end) throws BadLocationException { - while (pos < end) { - char curr = d.getChar(pos); - pos++; - if (curr == '*') { - if (pos < end && d.getChar(pos) == '/') { - return pos + 1; - } - } - } - return end; - } - - private int getStringEnd(IDocument d, int pos, int end, char ch) throws BadLocationException { - while (pos < end) { - char curr = d.getChar(pos); - pos++; - if (curr == '\\') { - // ignore escaped characters - pos++; - } - else if (curr == ch) { - return pos; - } - } - return end; - } - - private int getCharCount(IDocument document, int start, int end, char increment, char decrement, boolean considerNesting) throws BadLocationException { - - Assert.isTrue((increment != 0 || decrement != 0) && increment != decrement); - - int nestingLevel = 0; - int charCount = 0; - while (start < end) { - char curr = document.getChar(start++); - switch (curr) { - case '/' : - if (start < end) { - char next = document.getChar(start); - if (next == '*') { - // a comment starts, advance to the comment end - start = getCommentEnd(document, start + 1, end); - } - else if (next == '/') { - // '//'-comment: nothing to do anymore on this - // line - start = end; - } - } - break; - case '*' : - if (start < end) { - char next = document.getChar(start); - if (next == '/') { - // we have been in a comment: forget what we read - // before - charCount = 0; - ++start; - } - } - break; - case '"' : - case '\'' : - start = getStringEnd(document, start, end, curr); - break; - default : - - if (considerNesting) { - - if ('(' == curr) - ++nestingLevel; - else if (')' == curr) - --nestingLevel; - - if (nestingLevel != 0) - break; - } - - if (increment != 0) { - if (curr == increment) - ++charCount; - } - - if (decrement != 0) { - if (curr == decrement) - --charCount; - } - } - } - - return charCount; - } - - /** - * @see IContextInformationValidator#isContextInformationValid(int) - */ - public boolean isContextInformationValid(int position) { - - try { - if (position < fPosition) - return false; - - IDocument document = fViewer.getDocument(); - IRegion line = document.getLineInformationOfOffset(fPosition); - - if (position < line.getOffset() || position >= document.getLength()) - return false; - - return (getCharCount(document, fPosition, position, '(', ')', false) >= 0); - - } - catch (BadLocationException x) { - return false; - } - } - - /** - * @see IContextInformationPresenter#updatePresentation(int, - * TextPresentation) - */ - public boolean updatePresentation(int position, TextPresentation presentation) { - - int currentParameter = -1; - - try { - currentParameter = getCharCount(fViewer.getDocument(), fPosition, position, ',', (char) 0, true); - } - catch (BadLocationException x) { - return false; - } - - if (fCurrentParameter != -1) { - if (currentParameter == fCurrentParameter) - return false; - } - - if (fInformation == null) - return false; - - presentation.clear(); - fCurrentParameter = currentParameter; - - String s = fInformation.getInformationDisplayString(); - int start = 0; - int occurrences = 0; - while (occurrences < fCurrentParameter) { - int found = s.indexOf(',', start); - if (found == -1) - break; - start = found + 1; - ++occurrences; - } - - if (occurrences < fCurrentParameter) { - presentation.addStyleRange(new StyleRange(0, s.length(), null, null, SWT.NORMAL)); - return true; - } - - if (start == -1) - start = 0; - - int end = s.indexOf(',', start); - if (end == -1) - end = s.length(); - - if (start > 0) - presentation.addStyleRange(new StyleRange(0, start, null, null, SWT.NORMAL)); - - if (end > start) - presentation.addStyleRange(new StyleRange(start, end - start, null, null, SWT.BOLD)); - - if (end < s.length()) - presentation.addStyleRange(new StyleRange(end, s.length() - end, null, null, SWT.NORMAL)); - - return true; - } -}
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