Instead of this unreadable mess of chars:
(19|20)\d\d[- /.](0[1-9]|1)[- /.](0[1-9]|[0-9]|3)
add some comments to make it more readable:
(?#year)(19|20)\d\d[- /.](?#month)(0[1-9]|1)[- /.](?#day)(0[1-9]|[0-9]|3)
Test based on a regular expression with two comments:
var strip = require'reg-comments';var exp = '^(?#user)[^!]+!(?#post)[^!]+$';console.log'with comments: %s' exp;console.log'without comments: %s' stripexp;console.log'matches: %s' stripexptest'foo!bar';console.log'matches: %s' stripregexptest'foo!bar';
$ node example.jswith comments: ^(?#user)[^!]+!(?#post)[^!]+$without comments: ^[^!]+![^!]+$matches: truemathces: true
A valid comment starts with
(?#, followed 0-x characters that aren't
the closing paren, then
Or, in regular expression form:
Given an expression as a string, return a version of that string without RegExp comments.
Since it's a string, don't forget double escaping:
/\d/ === '\\d';
Create a regular expression object from the stripped version of
With npm do:
npm install reg-comments
Copyright (c) 2013 Julian Gruber <firstname.lastname@example.org>
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