Re: [Jemacs-info] Implementing eval-last-sexp

[Shad G. <cap...@gm...>]

Thank you for feedback, Per. I would like to work on this weekend or
during my next
bout of insomnia, whichever comes first, incorporating your concerns.
And I guess I
should force myself to take a look at the emacs code. :-)

On Tue, Apr 26, 2011 at 9:54 PM, Per Bothner <pe...@bo...> wrote:
>
> On 04/20/2011 07:44 PM, Shad Gregory wrote:
>>
>> Hi all,
>>
>> I'm attempting to implement eval-last-sexp. What I have so far pretty
>> much works,
>> but there must be some code somewhere in kawa that does the parsing I've
>> attempted
>> in the method evalLastSexp.
>
> Well, I'm not sure where in Kawa you'd find a parser that does what
> we need.  One problem is that it needs to parse *backwards*.  And of course
> to be correct, you should check if a paren is inside string quotes or
> is part of character literal.
>
> Also note that an sexpr isn't necessary a parenthesis form - it can be
> a constant or a symbol.  In that case you probably have to scan backwards for
> a delimiter.
>
> So I'm willing to check in your patch as-is (though there are some indentation
> issues), it might be a good idea if you could take a look at Emacs's
> implementation - see how they do it.  We don't need to be 100% correct, but
> having a better idea of what Emacs does seems like a good idea.
>
>>  Also, since jemacs supports both kawa and
>> elisp,
>> should the user be given a way to switch between the two? I've attached
>> a diff file
>> of my code, any suggestions would be appreciated.
>
> Yes, perhaps there should be a way to switch languages, but using
> the "current language" is probably good enough for now.  Regardless,
> this may be difficult enough for just one language!
> --
>        --Per Bothner
> pe...@bo...   http://per.bothner.com/