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com.liferay.source.formatter.checks.XMLIndentationCheck Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library 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 2.1 of the License, or (at your option)
* any later version.
*
* This library 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.
*/
package com.liferay.source.formatter.checks;
import com.liferay.petra.string.CharPool;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.tools.ToolsUtil;
/**
* @author Hugo Huijser
*/
public class XMLIndentationCheck extends BaseFileCheck {
@Override
protected String doProcess(
String fileName, String absolutePath, String content)
throws Exception {
while (true) {
String newContent = _fixTagsIndentation(content);
if (newContent.equals(content)) {
return newContent;
}
content = newContent;
}
}
private String _fixIndentation(
String content, String line, int expectedTabCount, int lineNumber) {
StringBundler sb = new StringBundler(expectedTabCount + 1);
for (int i = 0; i < expectedTabCount; i++) {
sb.append(CharPool.TAB);
}
sb.append(StringUtil.trim(line));
String newLine = sb.toString();
if (line.equals(newLine)) {
return content;
}
return StringUtil.replaceFirst(
content, line, newLine, getLineStartPos(content, lineNumber));
}
private String _fixMultiLineTagAttributesIndentation(
String content, String[] lines, TokenOccurrence previousTokenOccurrence,
TokenOccurrence tokenOccurrence, int expectedTabCount) {
if ((previousTokenOccurrence == null) ||
(tokenOccurrence.getLineNumber() ==
previousTokenOccurrence.getLineNumber())) {
return content;
}
String previousToken = previousTokenOccurrence.getToken();
if (!previousToken.equals(_TAG_OPEN)) {
return content;
}
String token = tokenOccurrence.getToken();
if (!token.equals(_MULTI_LINE_TAG_CLOSE) && !token.equals(_TAG_CLOSE)) {
return content;
}
String startLine = lines[previousTokenOccurrence.getLineNumber() - 1];
if (!startLine.matches("\\s*<[-\\w:]+")) {
return content;
}
for (int i = previousTokenOccurrence.getLineNumber() + 1;
i < tokenOccurrence.getLineNumber(); i++) {
String line = lines[i - 1];
if (line.matches("\\s*[\\w-]+=.*")) {
content = _fixIndentation(content, line, expectedTabCount, i);
}
}
return content;
}
private String _fixTagIndentation(
String content, String line, TokenOccurrence tokenOccurrence,
int expectedTabCount) {
if (tokenOccurrence.getLinePos() != 0) {
return content;
}
String token = tokenOccurrence.getToken();
if (token.equals(_CDATA_CLOSE) || token.equals(_CDATA_OPEN) ||
token.equals(_COMMENT_TAG_CLOSE)) {
return content;
}
if (token.equals(_CLOSING_TAG_OPEN) || token.equals(_TAG_CLOSE) ||
token.equals(_MULTI_LINE_TAG_CLOSE)) {
expectedTabCount--;
}
return _fixIndentation(
content, line, expectedTabCount, tokenOccurrence.getLineNumber());
}
private String _fixTagsIndentation(String content) {
String[] lines = StringUtil.splitLines(content);
int level = 0;
String[] tokens =
{_COMMENT_TAG_OPEN, _DOCTYPE_TAG_OPEN, _HEADER_TAG_OPEN, _TAG_OPEN};
TokenOccurrence previousTokenOccurrence = null;
while (true) {
TokenOccurrence tokenOccurrence = _getNextTokenOccurrence(
lines, previousTokenOccurrence, tokens);
if (tokenOccurrence == null) {
return content;
}
String newContent = _fixTagIndentation(
content, lines[tokenOccurrence.getLineNumber() - 1],
tokenOccurrence, level);
newContent = _fixMultiLineTagAttributesIndentation(
newContent, lines, previousTokenOccurrence, tokenOccurrence,
level);
if (!newContent.equals(content)) {
return newContent;
}
String token = tokenOccurrence.getToken();
if (token.equals(_CDATA_OPEN)) {
tokens = new String[] {_CDATA_CLOSE};
}
else if (token.equals(_CLOSING_TAG_OPEN)) {
level--;
tokens = new String[] {_TAG_CLOSE};
}
else if (token.equals(_COMMENT_TAG_OPEN)) {
tokens = new String[] {_COMMENT_TAG_CLOSE};
}
else if (token.equals(_DOCTYPE_TAG_OPEN) ||
token.equals(_HEADER_TAG_OPEN)) {
tokens = new String[] {_TAG_CLOSE};
}
else if (token.equals(_TAG_OPEN)) {
level++;
tokens = new String[] {_MULTI_LINE_TAG_CLOSE, _TAG_CLOSE};
}
else {
if (token.equals(_MULTI_LINE_TAG_CLOSE)) {
level--;
}
tokens = new String[] {
_CDATA_OPEN, _CLOSING_TAG_OPEN, _COMMENT_TAG_OPEN,
_DOCTYPE_TAG_OPEN, _HEADER_TAG_OPEN, _TAG_OPEN
};
}
previousTokenOccurrence = tokenOccurrence;
}
}
private int _getFirstMatchPos(String line, int startPos, String token) {
int pos = startPos;
while (true) {
pos = line.indexOf(token, pos + 1);
if ((pos == -1) ||
(!token.equals(_MULTI_LINE_TAG_CLOSE) &&
!token.equals(_TAG_CLOSE))) {
return pos;
}
int i = Math.max(0, startPos);
if (!ToolsUtil.isInsideQuotes(line.substring(i), pos - i, false)) {
return pos;
}
}
}
private TokenOccurrence _getNextTokenOccurrence(
String[] lines, TokenOccurrence previousTokenOccurrence,
String... tokens) {
int startLine = 1;
int startPos = -1;
if (previousTokenOccurrence != null) {
startLine = previousTokenOccurrence.getLineNumber();
startPos = previousTokenOccurrence.getLinePos();
}
String match = null;
int min = -1;
for (int i = startLine; i < lines.length; i++) {
String line = StringUtil.trim(lines[i - 1]);
if (Validator.isNull(line)) {
continue;
}
for (String token : tokens) {
int matchPos = _getFirstMatchPos(line, startPos, token);
if (matchPos == -1) {
continue;
}
if ((min == -1) || (min > matchPos)) {
match = token;
min = matchPos;
}
}
if (min != -1) {
return new TokenOccurrence(i, min, match);
}
startPos = -1;
}
return null;
}
private static final String _CDATA_CLOSE = "]]>";
private static final String _CDATA_OPEN = "";
private static final String _COMMENT_TAG_OPEN = " 