shell bypass 403
'use strict'
module.exports = alphabetical
// Check if the given character code, or the character code at the first
// character, is alphabetical.
function alphabetical(character) {
var code = typeof character === 'string' ? character.charCodeAt(0) : character
return (
(code >= 97 && code <= 122) /* a-z */ ||
(code >= 65 && code <= 90) /* A-Z */
)
}