| /* |
| * Copyright 2000-2011 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.ui; |
| |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.codeStyle.MinusculeMatcher; |
| import com.intellij.psi.codeStyle.NameUtil; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author Konstantin Bulenkov |
| */ |
| public class SpeedSearchComparator { |
| private MinusculeMatcher myMinusculeMatcher; |
| private String myRecentSearchText; |
| private final boolean myShouldMatchFromTheBeginning; |
| private final boolean myShouldMatchCamelCase; |
| |
| public SpeedSearchComparator() { |
| this(true); |
| } |
| |
| public SpeedSearchComparator(boolean shouldMatchFromTheBeginning) { |
| this(shouldMatchFromTheBeginning, false); |
| } |
| |
| public SpeedSearchComparator(boolean shouldMatchFromTheBeginning, boolean shouldMatchCamelCase) { |
| myShouldMatchFromTheBeginning = shouldMatchFromTheBeginning; |
| myShouldMatchCamelCase = shouldMatchCamelCase; |
| } |
| |
| public int matchingDegree(String pattern, String text) { |
| return obtainMatcher(pattern).matchingDegree(text); |
| } |
| |
| @Nullable |
| public Iterable<TextRange> matchingFragments(String pattern, String text) { |
| return obtainMatcher(pattern).matchingFragments(text); |
| } |
| |
| private MinusculeMatcher obtainMatcher(String pattern) { |
| if (myRecentSearchText == null || !myRecentSearchText.equals(pattern)) { |
| myRecentSearchText = pattern; |
| if (myShouldMatchCamelCase) { |
| pattern = StringUtil.join(NameUtil.nameToWords(pattern), "*"); |
| } |
| if (!myShouldMatchFromTheBeginning && !pattern.startsWith("*")) { |
| pattern = "*" + pattern; |
| } |
| myMinusculeMatcher = new MinusculeMatcher(pattern, NameUtil.MatchingCaseSensitivity.NONE); |
| } |
| return myMinusculeMatcher; |
| } |
| |
| public String getRecentSearchText() { |
| return myRecentSearchText; |
| } |
| } |