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* @license Apache-2.0
*
* Copyright (c) 2025 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 replace = require( '@stdlib/string/base/replace' );
var DATA = require( './data.json' );
// VARIABLES //
var RE_SUFFIX = /_and_generic$/;
// MAIN //
/**
* Returns a list of ndarray data type single letter character abbreviations.
*
* @param {string} [kind] - data type kind
* @returns {Array<string>} list of ndarray data type single letter character abbreviations
*
* @example
* var list = dtypeChars();
* // returns [...]
*
* @example
* var list = dtypeChars( 'floating_point' );
* // returns [...]
*/
function dtypeChars() {
var kind;
var out;
var FLG;
if ( arguments.length === 0 ) {
return DATA.all.slice();
}
FLG = false;
kind = arguments[ 0 ];
if ( RE_SUFFIX.test( kind ) ) {
kind = replace( kind, RE_SUFFIX, '' );
if ( kind !== 'all' && kind !== 'index' ) {
FLG = true;
}
}
out = DATA[ kind ];
out = ( out ) ? out.slice() : [];
if ( FLG && out.length > 0 ) {
out.push( 'o' );
}
return out;
}
// EXPORTS //
module.exports = dtypeChars;
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