Re: How to redesign big switch case?

From: Victor Bazarov (v.Abazarov_at_comAcast.net)
Date: 03/22/04 

Date: Mon, 22 Mar 2004 05:21:35 GMT

"Siemel Naran" <SiemelNaran@REMOVE.att.net> wrote...
> How to redesign big switch case?
>
> I wrote an editor that reads chars, and does a switch (char) to process
the
> character. For example, if char is HOME then go to the beginning of the
> line, and if char is CTRL-RIGHT then go to the start of the next word. As
I
> added more cases and support for reverse incremental history mode, the
code
> grew longer and longer. It is now 562 lines, or 58% of the entire file.
> This seems a bit clumsy. Fortunately the code does not have any goto
> statements and seems pretty structured and clear to me, so it's not
exactly
> sphaghetti code. Is it worthwhile to change the code? If yes, then how?
> Finally, it would be nice to allow users to derive their own editor class
> from my one and add support for more special keys.

So, why not have a table (std::map) of pairs {char/[member]function ptr}?

V

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