@oat-sa/tao-core-sdk
Version:
Core libraries of TAO
61 lines (57 loc) • 2.22 kB
JavaScript
define(function () { 'use strict';
/**
* Equivalent of PHP's str_pad.
* This uses http://phpjs.org/functions/str_pad/ and wraps it in require.
* There are also some slight modifications such as converting input always to a string.
* Renamed from str_pad to strPad
*
* License: https://github.com/kvz/phpjs/blob/master/LICENSE.txt (MIT)
*
* discuss at: http://phpjs.org/functions/str_pad/
* original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
* improved by: Michael White (http://getsprink.com)
* input by: Marco van Oort
* bugfixed by: Brett Zamir (http://brett-zamir.me)
* example 1: str_pad('Kevin van Zonneveld', 30, '-=', 'STR_PAD_LEFT');
* returns 1: '-=-=-=-=-=-Kevin van Zonneveld'
* example 2: str_pad('Kevin van Zonneveld', 30, '-', 'STR_PAD_BOTH');
* returns 2: '------Kevin van Zonneveld-----'
*
* @param {string} input
* @param {number} pad_length
* @param {string} pad_string
* @param {string} pad_type
* @returns {*}
*/
function strPad(input, pad_length, pad_string, pad_type) {
let half = '';
let pad_to_go;
function str_pad_repeater(s, len) {
let collect = '';
while (collect.length < len) {
collect += s;
}
collect = collect.substr(0, len);
return collect;
}
input = input.toString();
input += '';
pad_string = typeof pad_string !== 'undefined' ? pad_string : ' ';
if (pad_type !== 'STR_PAD_LEFT' && pad_type !== 'STR_PAD_RIGHT' && pad_type !== 'STR_PAD_BOTH') {
pad_type = 'STR_PAD_RIGHT';
}
if ((pad_to_go = pad_length - input.length) > 0) {
if (pad_type === 'STR_PAD_LEFT') {
input = str_pad_repeater(pad_string, pad_to_go) + input;
} else if (pad_type === 'STR_PAD_RIGHT') {
input = input + str_pad_repeater(pad_string, pad_to_go);
} else if (pad_type === 'STR_PAD_BOTH') {
half = str_pad_repeater(pad_string, Math.ceil(pad_to_go / 2));
input = half + input + half;
input = input.substr(0, pad_length);
}
}
return input;
}
return strPad;
});