| 12345678910111213141516171819202122 | 'use strict';/** * POSIX character classes */module.exports = {  alnum: 'a-zA-Z0-9',  alpha: 'a-zA-Z',  ascii: '\\x00-\\x7F',  blank: ' \\t',  cntrl: '\\x00-\\x1F\\x7F',  digit: '0-9',  graph: '\\x21-\\x7E',  lower: 'a-z',  print: '\\x20-\\x7E ',  punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',  space: ' \\t\\r\\n\\v\\f',  upper: 'A-Z',  word: 'A-Za-z0-9_',  xdigit: 'A-Fa-f0-9'};
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