You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
32 lines
782 B
32 lines
782 B
4 years ago
|
'use strict';
|
||
|
|
|
||
|
|
var GetIntrinsic = require('get-intrinsic');
|
||
|
|
var callBound = require('call-bind/callBound');
|
||
|
|
|
||
|
|
var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
|
||
|
|
var $TypeError = GetIntrinsic('%TypeError%');
|
||
|
|
var $charCodeAt = callBound('%String.prototype.charCodeAt%');
|
||
|
|
var $push = callBound('%Array.prototype.push%');
|
||
|
|
|
||
|
|
module.exports = function CharacterRange(A, B) {
|
||
|
|
if (A.length !== 1 || B.length !== 1) {
|
||
|
|
throw new $TypeError('Assertion failed: CharSets A and B contain exactly one character');
|
||
|
|
}
|
||
|
|
|
||
|
|
var a = A[0];
|
||
|
|
var b = B[0];
|
||
|
|
|
||
|
|
var i = $charCodeAt(a, 0);
|
||
|
|
var j = $charCodeAt(b, 0);
|
||
|
|
|
||
|
|
if (!(i <= j)) {
|
||
|
|
throw new $TypeError('Assertion failed: i is not <= j');
|
||
|
|
}
|
||
|
|
|
||
|
|
var arr = [];
|
||
|
|
for (var k = i; k <= j; k += 1) {
|
||
|
|
$push(arr, $fromCharCode(k));
|
||
|
|
}
|
||
|
|
return arr;
|
||
|
|
};
|