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/*
* Sonar, open source software quality management tool.
* Copyright (C) 2009 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* Sonar 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.
*
* Sonar 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 Sonar; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.squid.text;
public class SingleLineCommentHandler extends LineContextHandler {
private StringBuilder comment;
private final String commentStartTag;
private final String commentNotStartTag;
public SingleLineCommentHandler(String commentStartTag) {
this(commentStartTag, null);
}
public SingleLineCommentHandler(String commentStartTag, String commentNotStartTag) {
this.commentStartTag = commentStartTag;
this.commentNotStartTag = commentNotStartTag;
}
@Override
boolean matchToEnd(Line line, StringBuilder pendingLine) {
if (comment == null) {
throw new IllegalStateException("Method doContextBegin(StringBuilder pendingLine) has not been called.");
}
comment.append(getLastCharacter(pendingLine));
return false;
}
@Override
boolean matchToBegin(Line line, StringBuilder pendingLine) {
boolean doContextBegin = matchEndOfString(pendingLine, commentStartTag)
&& (commentNotStartTag == null || !matchEndOfString(pendingLine, commentNotStartTag));
if (doContextBegin) {
comment = new StringBuilder(commentStartTag);
}
return doContextBegin;
}
@Override
boolean matchWithEndOfLine(Line line, StringBuilder pendingLine) {
line.setComment(comment.toString());
comment = null;
return true;
}
}
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