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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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'use strict';
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/**
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* POSIX character classes
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*/
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module.exports = {
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alnum: 'a-zA-Z0-9',
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alpha: 'a-zA-Z',
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ascii: '\\x00-\\x7F',
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blank: ' \\t',
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cntrl: '\\x00-\\x1F\\x7F',
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digit: '0-9',
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graph: '\\x21-\\x7E',
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lower: 'a-z',
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print: '\\x20-\\x7E ',
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punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
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space: ' \\t\\r\\n\\v\\f',
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upper: 'A-Z',
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word: 'A-Za-z0-9_',
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xdigit: 'A-Fa-f0-9'
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};
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