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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.psi.search;
import org.jetbrains.annotations.NotNull;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
* A single pattern the occurrences of which in comments are indexed by IDEA.
*
* @author yole
* @since 5.1
* @see IndexPatternProvider#getIndexPatterns()
*/
public class IndexPattern {
@NotNull private String myPatternString;
private boolean myCaseSensitive;
private Pattern myPattern;
/**
* Creates an instance of an index pattern.
*
* @param patternString the text of the Java regular expression to match.
* @param caseSensitive whether the regular expression should be case-sensitive.
*/
public IndexPattern(@NotNull String patternString, final boolean caseSensitive) {
myPatternString = patternString;
myCaseSensitive = caseSensitive;
compilePattern();
}
@NotNull
public String getPatternString() {
return myPatternString;
}
public Pattern getPattern() {
return myPattern;
}
public boolean isCaseSensitive() {
return myCaseSensitive;
}
public void setPatternString(@NotNull final String patternString) {
myPatternString = patternString;
compilePattern();
}
public void setCaseSensitive(final boolean caseSensitive) {
myCaseSensitive = caseSensitive;
compilePattern();
}
private void compilePattern() {
try{
if (myCaseSensitive){
myPattern = Pattern.compile(myPatternString);
}
else{
myPattern = Pattern.compile(myPatternString, Pattern.CASE_INSENSITIVE);
}
}
catch(PatternSyntaxException e){
myPattern = null;
}
}
@Override
public boolean equals(final Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final IndexPattern that = (IndexPattern)o;
if (myCaseSensitive != that.myCaseSensitive) return false;
if (!myPatternString.equals(that.myPatternString)) return false;
return true;
}
@Override
public int hashCode() {
int result = myPatternString.hashCode();
result = 29 * result + (myCaseSensitive ? 1 : 0);
return result;
}
}
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