1 /*
2  * Copyright (C) 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.permissioncontroller.safetycenter.ui
18 
19 /** Class used to convert a [String] to the `snake_case` format */
20 object SnakeCaseConverter {
21 
22     /** Converts a [String] from `camelCase` to `snake_case` */
fromCamelCasenull23     fun fromCamelCase(input: String): String {
24         if (isFullyCapitalized(input)) {
25             return input.lowercase()
26         }
27 
28         val camelRegex = "(?<=[a-zA-Z])[A-Z]".toRegex()
29         return camelRegex.replace(input) { "_${it.value}" }.lowercase()
30     }
31 
isFullyCapitalizednull32     private fun isFullyCapitalized(input: String): Boolean {
33         val uppercaseInput = input.uppercase()
34         if (input == uppercaseInput) {
35             return true
36         }
37         return false
38     }
39 }
40