org.codenarc.rule.comments.SpaceAfterCommentDelimiterRule.groovy Maven / Gradle / Ivy
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The CodeNarc project provides a static analysis tool for Groovy code.
/*
* Copyright 2023 the original author or authors.
*
* 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 org.codenarc.rule.comments
import org.codenarc.rule.AbstractRule
import org.codenarc.rule.Violation
import org.codenarc.source.SourceCode
/**
* Checks that there is whitespace after comment characters: // and /*
*
* @author Chris Mair
*/
class SpaceAfterCommentDelimiterRule extends AbstractRule {
private static final String SLASH_SLASH = /[^\:\$]\/\/\w/
private static final String SLASH_STAR = /\/\*\w/
private static final String SLASH_STAR_STAR = /[^\/]\/\*\*\w/
private static final String REGEX = SLASH_SLASH + '|' + SLASH_STAR + '|' + SLASH_STAR_STAR
private static final String MESSAGE = 'The comment does not begin with space or whitespace'
String name = 'SpaceAfterCommentDelimiter'
int priority = 3
@Override
void applyTo(SourceCode sourceCode, List violations) {
def matcher = sourceCode.getText() =~ REGEX
while (matcher.find()) {
int lineNumber = sourceCode.getLineNumberForCharacterIndex(matcher.end())
String sourceLine = sourceCode.line(lineNumber - 1)
// Heuristic to avoid false positives when a string contains single quote (') or double quote (")
if (!sourceLine.contains("'") && !sourceLine.contains('"')) {
violations.add(new Violation(rule: this, lineNumber: lineNumber, sourceLine: sourceLine, message: MESSAGE))
}
}
}
}