| /* |
| * Copyright 2000-2013 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.ide.highlighter.custom.tokens; |
| |
| import com.intellij.psi.CustomHighlighterTokenType; |
| |
| /** |
| * @author dsl |
| */ |
| public class MultilineCommentParser extends PrefixedTokenParser { |
| private final char[] myEndDelimiter; |
| |
| private MultilineCommentParser(String startDelimiter, String endDelimiter) { |
| super(startDelimiter, CustomHighlighterTokenType.MULTI_LINE_COMMENT); |
| myEndDelimiter = endDelimiter.toCharArray(); |
| } |
| |
| @Override |
| protected int getTokenEnd(int position) { |
| for (; position < myEndOffset; position++) { |
| // todo: implement KMP |
| int pos = position; |
| int i; |
| for (i = 0; i < myEndDelimiter.length && pos < myEndOffset; i++, pos++) { |
| if (myBuffer.charAt(pos) != myEndDelimiter[i]) break; |
| } |
| if (i == myEndDelimiter.length) return pos; |
| } |
| return position; |
| } |
| |
| public static MultilineCommentParser create(String startDelimiter, String endDelimiter) { |
| if(startDelimiter == null || endDelimiter == null) return null; |
| final String trimmedStart = startDelimiter.trim(); |
| final String trimmedEnd = endDelimiter.trim(); |
| if (trimmedStart.length() > 0 && trimmedEnd.length() > 0) { |
| return new MultilineCommentParser(trimmedStart, trimmedEnd); |
| } else { |
| return null; |
| } |
| } |
| } |