47 lines
997 B
JavaScript
47 lines
997 B
JavaScript
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/**
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* Module exports.
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*/
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module.exports = shExpMatch;
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/**
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* Returns true if the string matches the specified shell
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* expression.
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*
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* Actually, currently the patterns are shell expressions,
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* not regular expressions.
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*
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* Examples:
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*
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* ``` js
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* shExpMatch("http://home.netscape.com/people/ari/index.html", "*\/ari/*")
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* // is true.
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*
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* shExpMatch("http://home.netscape.com/people/montulli/index.html", "*\/ari/*")
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* // is false.
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* ```
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*
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* @param {String} str is any string to compare (e.g. the URL, or the hostname).
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* @param {String} shexp is a shell expression to compare against.
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* @return {Boolean} true if the string matches the shell expression.
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*/
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function shExpMatch (str, shexp) {
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var re = toRegExp(shexp);
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return re.test(str);
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}
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/**
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* Converts a "shell expression" to a JavaScript RegExp.
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*
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* @api private
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*/
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function toRegExp (str) {
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str = String(str)
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.replace(/\?/g, '.')
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.replace(/\*/g, '(.*)');
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return new RegExp('^' + str + '$');
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}
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