
edu.hm.hafner.analysis.parser.ClangParser Maven / Gradle / Ivy
package edu.hm.hafner.analysis.parser;
import java.util.Optional;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import edu.hm.hafner.analysis.Issue;
import edu.hm.hafner.analysis.IssueBuilder;
import edu.hm.hafner.analysis.LookaheadParser;
import edu.hm.hafner.analysis.Severity;
import edu.hm.hafner.util.LookaheadStream;
/**
* A parser for the Clang compiler warnings.
*
* @author Neil Davis
*/
public class ClangParser extends LookaheadParser {
private static final long serialVersionUID = -3015592762345283182L;
private static final String CLANG_WARNING_PATTERN = "^\\s*(?:\\d+%)?(C\\/C\\+\\+: )?([^%]*?):(\\d+):(?:(\\d+):)?" + "(?:"
+ "(?:\\{\\d+:\\d+-\\d+:\\d+\\})+:)?\\s*(warning|[^\\[\\]]*error):" + "\\s*(.*?)(?:\\[([^\\[]*)\\])?$";
private static final Pattern IGNORE_FORMAT = Pattern.compile("^-\\[.*\\].*$");
/**
* Creates a new instance of {@link ClangParser}.
*/
public ClangParser() {
super(CLANG_WARNING_PATTERN);
}
@Override
protected Optional createIssue(final Matcher matcher, final LookaheadStream lookahead,
final IssueBuilder builder) {
String message = matcher.group(6);
if (IGNORE_FORMAT.matcher(message).matches()) {
return Optional.empty();
}
return builder.setFileName(matcher.group(2))
.setLineStart(matcher.group(3))
.setColumnStart(matcher.group(4))
.setCategory(matcher.group(7))
.setMessage(message)
.setSeverity(mapPriority(matcher.group(5)))
.buildOptional();
}
private Severity mapPriority(final String type) {
if (type.contains("error")) {
return Severity.WARNING_HIGH;
}
else {
return Severity.WARNING_NORMAL;
}
}
}
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