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Diffstat (limited to 'bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/PathUtils.java')
| -rw-r--r-- | bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/PathUtils.java | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/PathUtils.java b/bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/PathUtils.java deleted file mode 100644 index 5d8670e6d1..0000000000 --- a/bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/PathUtils.java +++ /dev/null @@ -1,146 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2011 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.wst.jsdt.web.core.internal; - -import java.io.File; - -import org.eclipse.core.runtime.IPath; -import org.eclipse.wst.jsdt.core.compiler.CharOperation; - -/** - * <p>Utility class dealing with {@link IPath}s.</p> - */ -public class PathUtils { - /** represents the * pattern in a path pattern */ - private static final String STAR = "*"; //$NON-NLS-1$ - - /** represents the ** pattern in a path pattern */ - private static final String STAR_STAR = "**"; //$NON-NLS-1$ - - /** - * <p>Counts the number of segments in a given pattern that match segments in a given parent path. - * This counting takes place from the beginning of both the pattern and parent and stops when - * they no longer match. The pattern can contain **, * and ? wild cards.</p> - * - * @param pattern count the number of segments of this pattern that match the given <code>parent</code> - * @param parent count the number of segments in the given <code>pattern</code> that match this path - * @return the number of segments from the beginning of the given <code>pattern</code> {@link IPath} - * that match the beginning segments of the given <code>parent</code> {@link IPath} - */ - public static int countPatternSegmentsThatMatchParent(IPath pattern, IPath parent) { - int matchingSegments = 0; - - //ignore a pattern that is just ** or * - if(!(pattern.segmentCount() == 1 && - (pattern.segment(0).equals(STAR_STAR) || pattern.segment(0).equals(STAR)))) { - - int patternSegmentIndex = 0; - int parentSegmentIndex = 0; - boolean starStarMode = false; - while(patternSegmentIndex < pattern.segmentCount() && - parentSegmentIndex < parent.segmentCount()) { - - String patternSegment = pattern.segment(patternSegmentIndex); - String parentSegment = parent.segment(parentSegmentIndex); - - /* if matching on wild - * else if wild match on multiple path segments - * else if wild match on one path segment or path segments are equal - * else not equal so stop comparing - */ - if(starStarMode) { - /* if parent segment equals first pattern segment after a ** stop matching on it - * else still matching on ** - */ - if(pathSegmentMatchesPattern(patternSegment, parentSegment)) { - starStarMode = false; - matchingSegments++; - patternSegmentIndex++; - parentSegmentIndex++; - } else { - parentSegmentIndex++; - } - - } else if(patternSegment.equals(STAR_STAR)) { //$NON-NLS-1$ - starStarMode = true; - - //find the first pattern segment after the ** that is not another ** or * - matchingSegments++; - parentSegmentIndex++; - - for(int i = patternSegmentIndex+1; i < pattern.segmentCount(); ++i) { - - if(!(pattern.segment(i).equals(STAR_STAR) || //$NON-NLS-1$ - pattern.segment(i).equals(STAR))) { //$NON-NLS-1$ - - patternSegmentIndex = i; - break; - } - } - } else if(patternSegment.equals("*") || //$NON-NLS-1$ - pathSegmentMatchesPattern(patternSegment, parentSegment)){ - - matchingSegments++; - patternSegmentIndex++; - parentSegmentIndex++; - } else { - break; - } - } - } - - return matchingSegments; - } - - /** - * <p>Given a pattern path and a parent path attempts to truncate the given pattern path such - * that it is relative to the given parent path.</p> - * - * @param pattern attempt to truncate this {@link IPath} such that it is relative to the given - * <code>parent</code> {@link IPath} - * @param parent attempt to truncate the given <code>pattern</code> {@link IPath} such that it - * is relative to this {@link IPath} - * @return either a truncated version of the given <code>pattern</code> {@link IPath} that is - * relative to the given <code>parent</code> {@link IPath}, or <code>null</code> if the given - * <code>pattern</code> {@link IPath} could not be truncated to be relative to the given - * <code>parent</code> {@link IPath} - */ - public static IPath makePatternRelativeToParent(IPath pattern, IPath parent) { - int matchedSegments = countPatternSegmentsThatMatchParent(pattern, parent); - - IPath relativePattern = null; - if(matchedSegments != 0) { - relativePattern = pattern.removeFirstSegments(matchedSegments); - - if(relativePattern.segmentCount() == 0) { - relativePattern = null; - } else { - relativePattern.makeRelative(); - } - } - - return relativePattern; - } - - /** - * <p>A convenience method for checking the matching of one segment from a pattern path with - * one segment from a path.</p> - *Bug 334922 - CharOperation#match does not work as expected when isCaseSensitive is passed as false - * @param patternSegment check if this pattern segment is a match with the given path segment. - * @param segment check if this path segment matches with the given pattern segment - * @return <code>true</code> if the segments match, <code>false</code> otherwise - */ - private static boolean pathSegmentMatchesPattern(String patternSegment, String segment) { - return CharOperation.pathMatch(patternSegment.toCharArray(), segment.toCharArray(), - false, File.separatorChar); - } -} |