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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.squid.text;
public class MultiLinesCommentHandler extends LineContextHandler {
private StringBuilder currentLineComment;
private boolean isFirstLineOfComment = false;
private boolean isJavadoc = false;
private boolean isLicenseHeader = false;
private boolean commentStarted = false;
private static final String START_COMMENT_TAG = "/*";
private static final String START_JAVADOC_TAG = "/**";
private static final String START_GWT_NATIVE_CODE_TAG = "/*-{";
private static final String END_COMMENT_TAG = "*/";
@Override
boolean matchToEnd(Line line, StringBuilder pendingLine) {
if ( !commentStarted) {
throw new IllegalStateException("Method doContextBegin(StringBuilder pendingLine) has not been called first (line = '" + pendingLine
+ "').");
}
currentLineComment.append(getLastCharacter(pendingLine));
if (isJavaDoc()) {
isJavadoc = true;
}
if (isGwtNativeCode()) {
initProperties();
return true;
}
boolean match = matchEndOfString(pendingLine, END_COMMENT_TAG);
if (match && !(isFirstLineOfComment && pendingLine.indexOf(START_COMMENT_TAG) + 1 == pendingLine.indexOf(END_COMMENT_TAG))) {
endOfCommentLine(line);
initProperties();
return true;
}
return false;
}
private boolean isGwtNativeCode() {
return isFirstLineOfComment && currentLineComment.length() == START_GWT_NATIVE_CODE_TAG.length()
&& currentLineComment.toString().equals(START_GWT_NATIVE_CODE_TAG);
}
private boolean isJavaDoc() {
return isFirstLineOfComment && currentLineComment.length() == START_JAVADOC_TAG.length()
&& currentLineComment.toString().equals(START_JAVADOC_TAG);
}
@Override
boolean matchToBegin(Line line, StringBuilder pendingLine) {
boolean match = matchEndOfString(pendingLine, START_COMMENT_TAG);
if (match) {
isFirstLineOfComment = true;
commentStarted = true;
currentLineComment = new StringBuilder(START_COMMENT_TAG);
isLicenseHeader = (line.getLineIndex() == 1);
}
return match;
}
@Override
boolean matchWithEndOfLine(Line line, StringBuilder pendingLine) {
endOfCommentLine(line);
return false;
}
private void endOfCommentLine(Line line) {
line.setComment(currentLineComment.toString(), isJavadoc, isLicenseHeader);
currentLineComment = new StringBuilder();
isFirstLineOfComment = false;
}
private void initProperties() {
commentStarted = false;
isJavadoc = false;
isLicenseHeader = false;
currentLineComment = new StringBuilder();
isFirstLineOfComment = false;
}
}
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