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/*
* WPCleaner: A tool to help on Wikipedia maintenance tasks.
* Copyright (C) 2013 Nicolas Vervelle
*
* See README.txt file for licensing information.
*/
package org.wikipediacleaner.api.check.algorithm;
import java.util.Collection;
import java.util.List;
import org.wikipediacleaner.api.check.CheckErrorResult;
import org.wikipediacleaner.api.data.PageAnalysis;
import org.wikipediacleaner.api.data.PageElementTitle;
/**
* Algorithm for analyzing error 7 of check wikipedia project.
* Error 7: Headlines all start with three "="
*/
public class CheckErrorAlgorithm007 extends CheckErrorAlgorithmBase {
public CheckErrorAlgorithm007() {
super("Headlines all start with three \"=\"");
}
/**
* Analyze a page to check if errors are present.
*
* @param analysis Page analysis.
* @param errors Errors found in the page.
* @param onlyAutomatic True if analysis could be restricted to errors automatically fixed.
* @return Flag indicating if the error was found.
*/
@Override
public boolean analyze(
PageAnalysis analysis,
Collection<CheckErrorResult> errors, boolean onlyAutomatic) {
if (analysis == null) {
return false;
}
// Check level of each title
List<PageElementTitle> titles = analysis.getTitles();
if ((titles == null) || (titles.size() == 0)) {
return false;
}
for (PageElementTitle title : titles) {
if (title.getLevel() < 3) {
return false;
}
}
if (errors == null) {
return true;
}
CheckErrorResult errorResult = createCheckErrorResult(
analysis,
titles.get(0).getBeginIndex(), titles.get(0).getEndIndex());
if (titles.size() == 1) {
errorResult.addReplacement(PageElementTitle.createTitle(
2, titles.get(0).getTitle(), titles.get(0).getAfterTitle()));
}
errorResult.addEditTocAction(titles.get(0));
errors.add(errorResult);
return true;
}
/**
* Bot fixing of all the errors in the page.
*
* @param analysis Page analysis.
* @return Page contents after fix.
*/
@Override
protected String internalBotFix(PageAnalysis analysis) {
String contents = analysis.getContents();
if (!analysis.areTitlesReliable()) {
return contents;
}
// Compute minimum title level
List<PageElementTitle> titles = analysis.getTitles();
if ((titles == null) || (titles.size() == 0)) {
return contents;
}
int minTitle = Integer.MAX_VALUE;
for (PageElementTitle title : titles) {
if (title.getLevel() < minTitle) {
minTitle = title.getLevel();
}
}
if (minTitle < 3) {
return contents;
}
// Replace titles
StringBuilder tmp = new StringBuilder();
int lastIndex = 0;
int offset = minTitle - 2;
for (PageElementTitle title : titles) {
if (lastIndex < title.getBeginIndex()) {
tmp.append(contents.substring(lastIndex, title.getBeginIndex()));
lastIndex = title.getBeginIndex();
}
tmp.append(PageElementTitle.createTitle(
title.getLevel() - offset, title.getTitle(), title.getAfterTitle()));
if (title.getAfterTitle() != null) {
tmp.append(title.getAfterTitle());
}
lastIndex = title.getEndIndex();
}
if (lastIndex < contents.length()) {
tmp.append(contents.substring(lastIndex));
}
return tmp.toString();
}
}