77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
|
/**
|
|||
|
|
* @license Apache-2.0
|
|||
|
|
*
|
|||
|
|
* Copyright (c) 2021 The Stdlib Authors.
|
|||
|
|
*
|
|||
|
|
* 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.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
// MODULES //
|
|||
|
|
|
|||
|
|
var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
|
|||
|
|
var uppercase = require( './../../uppercase' );
|
|||
|
|
var replace = require( './../../replace' );
|
|||
|
|
var format = require( './../../format' );
|
|||
|
|
var trim = require( './../../trim' );
|
|||
|
|
|
|||
|
|
|
|||
|
|
// VARIABLES //
|
|||
|
|
|
|||
|
|
var RE_WHITESPACE = /\s+/g;
|
|||
|
|
var RE_SPECIAL = /[!"'(),–.:;<>?`{}|~\/\\\[\]_#$*&^@%]+/g; // eslint-disable-line no-useless-escape
|
|||
|
|
var RE_CAMEL = /([a-z0-9])([A-Z])/g;
|
|||
|
|
|
|||
|
|
|
|||
|
|
// MAIN //
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Converts a string to constant case.
|
|||
|
|
*
|
|||
|
|
* @param {string} str - string to convert
|
|||
|
|
* @throws {TypeError} must provide a string primitive
|
|||
|
|
* @returns {string} constant-cased string
|
|||
|
|
*
|
|||
|
|
* @example
|
|||
|
|
* var str = constantcase( 'beep' );
|
|||
|
|
* // returns 'BEEP'
|
|||
|
|
*
|
|||
|
|
* @example
|
|||
|
|
* var str = constantcase( 'beep boop' );
|
|||
|
|
* // returns 'BEEP_BOOP'
|
|||
|
|
*
|
|||
|
|
* @example
|
|||
|
|
* var str = constantcase( 'isMobile' );
|
|||
|
|
* // returns 'IS_MOBILE'
|
|||
|
|
*
|
|||
|
|
* @example
|
|||
|
|
* var str = constantcase( 'Hello World!' );
|
|||
|
|
* // returns 'HELLO_WORLD'
|
|||
|
|
*/
|
|||
|
|
function constantcase( str ) {
|
|||
|
|
if ( !isString( str ) ) {
|
|||
|
|
throw new TypeError( format( 'invalid argument. Must provide a string. Value: `%s`.', str ) );
|
|||
|
|
}
|
|||
|
|
str = replace( str, RE_SPECIAL, ' ' );
|
|||
|
|
str = replace( str, RE_CAMEL, '$1 $2' );
|
|||
|
|
str = trim( str );
|
|||
|
|
str = replace( str, RE_WHITESPACE, '_' );
|
|||
|
|
return uppercase( str );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// EXPORTS //
|
|||
|
|
|
|||
|
|
module.exports = constantcase;
|