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- "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
- };
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