org.jetbrains.kotlin.name.NameUtils.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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.jetbrains.kotlin.name
import java.util.*
object NameUtils {
private val SANITIZE_AS_JAVA_INVALID_CHARACTERS = "[^\\p{L}\\p{Digit}]".toRegex()
@JvmStatic
fun sanitizeAsJavaIdentifier(name: String): String {
return SANITIZE_AS_JAVA_INVALID_CHARACTERS.replace(name, "_")
}
/**
* Capitalizes the short name of the file (without extension) and sanitizes it so that it's a valid Java identifier.
* E.g. "fileName" -> "FileName", "1" -> "_1", "" -> "_"
*/
@JvmStatic
fun getPackagePartClassNamePrefix(shortFileName: String): String =
if (shortFileName.isEmpty())
"_"
else
capitalizeAsJavaClassName(sanitizeAsJavaIdentifier(shortFileName))
@JvmStatic
private fun capitalizeAsJavaClassName(str: String): String =
// NB use Locale.ENGLISH so that build is locale-independent.
// See Javadoc on java.lang.String.toUpperCase() for more details.
if (Character.isJavaIdentifierStart(str[0]))
str.substring(0, 1).toUpperCase(Locale.ENGLISH) + str.substring(1)
else
"_$str"
// "pkg/someScript.kts" -> "SomeScript"
@JvmStatic
fun getScriptNameForFile(filePath: String): Name =
Name.identifier(NameUtils.getPackagePartClassNamePrefix(filePath.substringAfterLast('/').substringBeforeLast('.')))
@JvmStatic
fun hasName(name: Name) = name != SpecialNames.NO_NAME_PROVIDED && name != SpecialNames.ANONYMOUS_FUNCTION
}