com.github.andrewoma.kwery.mapper.util.CaseFormatters.kt Maven / Gradle / Ivy

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An SQL library for Kotlin

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/*
 * Copyright (c) 2015 Andrew O'Malley
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.github.andrewoma.kwery.mapper.util

val camelToLowerUnderscore: (String) -> String = { s ->
    if (s.isEmpty()) s else {
        val sb = StringBuilder(s.length + s.length / 3)

        sb.append(Character.toLowerCase(s[0]))
        for (ch in s.substring(1)) {
            sb.append(if (ch.isUpperCase()) "_" + Character.toLowerCase(ch) else ch)
        }
        sb.toString()
    }
}

val camelToTitle: (String) -> String = { s ->
    if (s.isEmpty()) s else {
        s.capitalize()
    }
}