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/*
* Copyright (C) 2020 The Android Open Source Project
*
* 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.
*/
import java.util.Locale
private val camelHumpBoundary = Regex(
"-"
+ "|_"
+ "|(?<=[0-9])(?=[^0-9])"
+ "|(?<=[A-Z])(?=[^A-Za-z]|[A-Z][a-z])"
+ "|(?<=[a-z])(?=[^a-z])"
)
private fun String.toCamelHumps(): List<String> = split(camelHumpBoundary)
fun String.toUpperCamelCase(): String =
toCamelHumps().joinToString("") { it.toLowerCase(Locale.ROOT).capitalize(Locale.ROOT) }
fun String.toLowerCamelCase(): String = toUpperCamelCase().decapitalize(Locale.ROOT)
fun String.toUpperKebabCase(): String =
toCamelHumps().joinToString("-") { it.toUpperCase(Locale.ROOT) }
fun String.toLowerKebabCase(): String =
toCamelHumps().joinToString("-") { it.toLowerCase(Locale.ROOT) }
fun String.toUpperSnakeCase(): String =
toCamelHumps().joinToString("_") { it.toUpperCase(Locale.ROOT) }
fun String.toLowerSnakeCase(): String =
toCamelHumps().joinToString("_") { it.toLowerCase(Locale.ROOT) }
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