Erik Corry wrote:
Steven Levithan wrote:
Kris Kowal wrote:
Jordan Osete wrote:
Hello everybody.
How about standardizing something like RegExp.escape() ?
http://simonwillison.net/2006/Jan/20/escape/
It is trivial to implement, but it seems to me that this functionality
belongs to the language - the implementation obviously knows better
which characters must be escaped, and which ones don't need to.
+1
+1, again.
Although this is only a minor convenience since you can do something like
text.replace(/[-[\]{}()*+?.,\\^$|]/g, "\\$&"), the list of special
characters is subject to change. E.g., if ES adds /x, whitespace (and
possibly #) must be added.
In perl the recommended version is
text.replace(/([^a-zA-Z0-9])/g, "\\$1")
which is future-proof and safe and I think this also works for JS.
It's probably future-proof and safe, but it escapes 65,520 characters more
than necessary.
Anyway, no big deal if this isn't added. I have, however, seen a lot of
developers get this wrong when trying to do it themselves (e.g., the blog
post that started this thread was not safe until it was updated 4+ years
later, and it wasn't the worst I've seen).
-- Steven Levithan
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