infra.js•518 B
"use strict";
// Note that we take code points as JS numbers, not JS strings.
function isASCIIDigit(c) {
return c >= 0x30 && c <= 0x39;
}
function isASCIIAlpha(c) {
return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A);
}
function isASCIIAlphanumeric(c) {
return isASCIIAlpha(c) || isASCIIDigit(c);
}
function isASCIIHex(c) {
return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66);
}
module.exports = {
isASCIIDigit,
isASCIIAlpha,
isASCIIAlphanumeric,
isASCIIHex
};