Sha256: c9e8494240216203671f3c8ce011df60f4f854f198f1cb593f4dc28a80dac7da
Contents?: true
Size: 931 Bytes
Versions: 27
Compression:
Stored size: 931 Bytes
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var callBound = require('call-bind/callBound');
var $charCodeAt = callBound('String.prototype.charCodeAt');
var $toUpperCase = callBound('String.prototype.toUpperCase');
var Type = require('./Type');
// https://262.ecma-international.org/5.1/#sec-15.10.2.8
module.exports = function Canonicalize(ch, IgnoreCase) {
if (Type(ch) !== 'String' || ch.length !== 1) {
throw new $TypeError('Assertion failed: `ch` must be a character');
}
if (Type(IgnoreCase) !== 'Boolean') {
throw new $TypeError('Assertion failed: `IgnoreCase` must be a Boolean');
}
if (!IgnoreCase) {
return ch; // step 1
}
var u = $toUpperCase(ch); // step 2
if (u.length !== 1) {
return ch; // step 3
}
var cu = u; // step 4
if ($charCodeAt(ch, 0) >= 128 && $charCodeAt(cu, 0) < 128) {
return ch; // step 5
}
return cu;
};
Version data entries
27 entries across 27 versions & 2 rubygems