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sort.js
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sort.js
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module.exports = function sort(inputArr, sortFlags) {
// discuss at: https://locutus.io/php/sort/
// original by: Kevin van Zonneveld (https://kvz.io)
// revised by: Brett Zamir (https://brett-zamir.me)
// improved by: Brett Zamir (https://brett-zamir.me)
// note 1: SORT_STRING (as well as natsort and natcasesort) might also be
// note 1: integrated into all of these functions by adapting the code at
// note 1: https://sourcefrog.net/projects/natsort/natcompare.js
// note 1: This function deviates from PHP in returning a copy of the array instead
// note 1: of acting by reference and returning true; this was necessary because
// note 1: IE does not allow deleting and re-adding of properties without caching
// note 1: of property position; you can set the ini of "locutus.sortByReference" to true to
// note 1: get the PHP behavior, but use this only if you are in an environment
// note 1: such as Firefox extensions where for-in iteration order is fixed and true
// note 1: property deletion is supported. Note that we intend to implement the PHP
// note 1: behavior by default if IE ever does allow it; only gives shallow copy since
// note 1: is by reference in PHP anyways
// note 1: Since JS objects' keys are always strings, and (the
// note 1: default) SORT_REGULAR flag distinguishes by key type,
// note 1: if the content is a numeric string, we treat the
// note 1: "original type" as numeric.
// example 1: var $arr = ['Kevin', 'van', 'Zonneveld']
// example 1: sort($arr)
// example 1: var $result = $arr
// returns 1: ['Kevin', 'Zonneveld', 'van']
// example 2: ini_set('locutus.sortByReference', true)
// example 2: var $fruits = {d: 'lemon', a: 'orange', b: 'banana', c: 'apple'}
// example 2: sort($fruits)
// example 2: var $result = $fruits
// returns 2: {0: 'apple', 1: 'banana', 2: 'lemon', 3: 'orange'}
// test: skip-1
const i18nlgd = require('../i18n/i18n_loc_get_default')
let sorter
let i
let k
let sortByReference = false
let populateArr = {}
const $global = typeof window !== 'undefined' ? window : global
$global.$locutus = $global.$locutus || {}
const $locutus = $global.$locutus
$locutus.php = $locutus.php || {}
$locutus.php.locales = $locutus.php.locales || {}
switch (sortFlags) {
case 'SORT_STRING':
// compare items as strings
// leave sorter undefined, so built-in comparison is used
break
case 'SORT_LOCALE_STRING':
// compare items as strings, based on the current locale
// (set with i18n_loc_set_default() as of PHP6)
var loc = $locutus.php.locales[i18nlgd()]
if (loc && loc.sorting) {
// if sorting exists on locale object, use it
// otherwise let sorter be undefined
// to fallback to built-in behavior
sorter = loc.sorting
}
break
case 'SORT_NUMERIC':
// compare items numerically
sorter = function (a, b) {
return a - b
}
break
case 'SORT_REGULAR':
default:
sorter = function (a, b) {
const aFloat = parseFloat(a)
const bFloat = parseFloat(b)
const aNumeric = aFloat + '' === a
const bNumeric = bFloat + '' === b
if (aNumeric && bNumeric) {
return aFloat > bFloat ? 1 : aFloat < bFloat ? -1 : 0
} else if (aNumeric && !bNumeric) {
return 1
} else if (!aNumeric && bNumeric) {
return -1
}
return a > b ? 1 : a < b ? -1 : 0
}
break
}
const iniVal =
(typeof require !== 'undefined' ? require('../info/ini_get')('locutus.sortByReference') : undefined) || 'on'
sortByReference = iniVal === 'on'
populateArr = sortByReference ? inputArr : populateArr
const valArr = []
for (k in inputArr) {
// Get key and value arrays
if (inputArr.hasOwnProperty(k)) {
valArr.push(inputArr[k])
if (sortByReference) {
delete inputArr[k]
}
}
}
valArr.sort(sorter)
for (i = 0; i < valArr.length; i++) {
// Repopulate the old array
populateArr[i] = valArr[i]
}
return sortByReference || populateArr
}