Escaping regexps question/bug ?

[jbruchanov]

I'm working on android app using not simple rive scripts.
Not using java lib because of aichaos/rivescript-java#54.
So running this library in https://github.com/square/duktape-android.
However duktape is complaining about invalid escaping of regexps.
It's about escaped underscore \_ and expected is just _
for example here
(

rivescript-js/src/parser.coffee

Line 649 in b46d703

if line.match(/[^A-Za-z0-9\_\-\s]/)

).

i'm wondering why is _ escaped if it's not regexp special char, is it something from coffee script or some javascript compatibility/new stuff ?

[kirsle]

i'm wondering why is _ escaped if it's not regexp special char, is it something from coffee script or some javascript compatibility/new stuff ?

Probably just me programming extra defensively (and coming from a Perl background, where all sorts of things can be surprise meta characters but escaping things that don't need escaping isn't harmful). The escaping probably isn't necessary at all. 😄

You may send a PR that removes the escaping of underscores in regexps.