[Web-SIG] JavaScript escape function

[Jp Calderone]

On Mon, 25 Apr 2005 18:11:46 -0700, Shannon -jj Behrens <jjinux at gmail.com> wrote:
>Hey guys,
>
>I need a JavaScript escape function.  Let's say I have a variable, and
>I'm generating some JavaScript from Cheetah:
>
>    var s = "$s";
>
>I need to make $s safe:
>
>    var s = "$javascript_safe($s)";
>
>Has anyone coded this yet?  Will the same function work for both
>single and double quoted strings?  Can I steal some code?
>
>Thanks :-D
>-jj
>

  Nevow has liveevil.jquote(), which I believe does what you want.  It is strikingly simple and straightforward:

    def jquote(jscript):
        return jscript.replace('\\', '\\\\'
            ).replace("'", "\\'"
            ).replace('\n', '\\n')

  I wonder if it isn't buggy somehow :)  I don't know javascript well enough myself to say either way.

  Jp