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BadSemver.java
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BadSemver.java
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/*
* Copyright 2021-2022 DiffPlug
*
* 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 com.diffplug.spotless.kotlin;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
class BadSemver {
protected static int version(String input) {
Matcher matcher = BAD_SEMVER.matcher(input);
if (!matcher.find() || matcher.start() != 0) {
throw new IllegalArgumentException("Version must start with " + BAD_SEMVER.pattern());
}
String major = matcher.group(1);
String minor = matcher.group(2);
String patch = matcher.group(3);
return version(Integer.parseInt(major), Integer.parseInt(minor), patch != null ? Integer.parseInt(patch) : 0);
}
/** Ambiguous after 2147.483647.blah-blah */
protected static int version(int major, int minor, int patch) {
return major * 1_000_000 + minor * 1_000 + patch;
}
protected static int version(int major, int minor) {
return version(major, minor, 0);
}
private static final Pattern BAD_SEMVER = Pattern.compile("(\\d+)\\.(\\d+)\\.*(\\d+)*");
}