/**
* Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
package com.python.pydev.analysis.actions;
import java.util.List;
import org.eclipse.ui.dialogs.SearchPattern;
import org.python.pydev.core.callbacks.ICallback2;
import org.python.pydev.core.docutils.StringUtils;
import com.python.pydev.analysis.additionalinfo.IInfo;
/**
* Helper matching scopes vs declaring module names and the actual name of the token.
*/
public class MatchHelper {
/**
* Matches according to scopes.
*/
public static boolean matchItem(SearchPattern patternMatcher, IInfo info) {
//We want to match the package name in the beggining too...
String pattern = patternMatcher.getPattern();
List<String> split = StringUtils.splitAndRemoveEmptyTrimmed(pattern, '.');
if (split.size() <= 1) {
if (pattern.endsWith(".")) {
split.add("");
} else {
return patternMatcher.matches(info.getName());
}
}
//Otherwise, we have more things to match... We could match something like:
//django.AAA -- which should match all the modules that start with django and the tokens that have AAA.
String declaringModuleName = info.getDeclaringModuleName();
if (declaringModuleName == null || declaringModuleName.length() == 0) {
return false;
}
List<String> moduleParts = StringUtils.splitAndRemoveEmptyTrimmed(declaringModuleName, '.');
while (split.size() > 1) {
String head = split.remove(0);
SearchPattern headPattern = new SearchPattern();
headPattern.setPattern(head);
if (moduleParts.size() == 0) {
return false; //we cannot match it anymore
}
if (!headPattern.matches(moduleParts.remove(0))) {
return false;
}
}
//if it got here, we've matched the module correctly... let's go on and check the name.
SearchPattern tailPattern = new SearchPattern();
tailPattern.setPattern(split.get(0));
return tailPattern.matches(info.getName());
}
/**
* Checks if equals considering scopes.
*/
public static boolean equalsFilter(String thisPattern, String otherPattern) {
return checkPatternSubparts(thisPattern, otherPattern, new ICallback2<Boolean, SearchPattern, SearchPattern>() {
public Boolean call(SearchPattern thisP, SearchPattern otherP) {
if (!(thisP.equalsPattern(otherP))) {
return false;
}
return true;
}
});
}
/**
* Checks if it's a sub-filter considering scopes.
*/
public static boolean isSubFilter(String thisPattern, String otherPattern) {
return checkPatternSubparts(thisPattern, otherPattern, new ICallback2<Boolean, SearchPattern, SearchPattern>() {
public Boolean call(SearchPattern thisP, SearchPattern otherP) {
if (!(thisP.isSubPattern(otherP))) {
return false;
}
return true;
}
});
}
private static boolean checkPatternSubparts(String thisPattern, String otherPattern,
ICallback2<Boolean, SearchPattern, SearchPattern> check) {
boolean thisEndsWithPoint = thisPattern.endsWith(".");
boolean otherEndsWithPoint = otherPattern.endsWith(".");
if (thisEndsWithPoint != otherEndsWithPoint) {
return false;
}
List<String> thisSplit = StringUtils.splitAndRemoveEmptyNotTrimmed(thisPattern, '.');
List<String> otherSplit = StringUtils.splitAndRemoveEmptyNotTrimmed(otherPattern, '.');
if (thisEndsWithPoint) {
thisSplit.add("");
}
if (otherEndsWithPoint) {
otherSplit.add("");
}
if (thisSplit.size() != otherSplit.size()) {
return false;
}
for (int i = 0; i < thisSplit.size(); i++) {
String thisStr = thisSplit.get(i);
String otherStr = otherSplit.get(i);
SearchPattern thisP = new SearchPattern();
thisP.setPattern(thisStr);
SearchPattern otherP = new SearchPattern();
otherP.setPattern(otherStr);
if (!check.call(thisP, otherP)) {
return false;
}
}
return true;
}
}