quick one: the hyphen has meaning only inside squared brackets and between ranges ... this has no meaning `[_-]` so doesn't this `[a-]`
On Wed, Aug 28, 2013 at 9:23 AM, Claude Pache <[email protected]>wrote: > > Le 28 août 2013 à 17:23, Axel Rauschmayer <[email protected]> a écrit : > > This must have been suggested before, but it would be great to have a > built-in function for quoting text in a RegExp. > > For example: > > ```js > RegExp.quoteText = function (text) { > return text.replace(/[\^\$\\.*+?()[\]{}|]/g, '\\\$&'); > }; > > ``` > > If you wanted to be extra thorough, you could include parens, braces and > brackets. > > > > The complete list of characters that should be escaped is: > ``` > . \ + * ? [ ^ ] $ ( ) { } = ! < > | : - > ``` > (taken from [1]). Importantly, characters that have special meaning only > in some context should also be included. For example, consider the hyphen > `-`, which has special meaning only inside `[...]`: People may want to > write: > ``` > var charList = 'abcd123-_'; > var re = new RegExp( '[' + RegExp.quote(charList) + ']' ) > ``` > in order to construct a regexp that matches any character of `charList`. > > --Claude > > [1] http://php.net/manual/en/function.preg-quote.php > > > -- > Dr. Axel Rauschmayer > [email protected] > > home: rauschma.de > twitter: twitter.com/rauschma > blog: 2ality.com > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
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