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Re: indent-region for long Java strings very slow


From: David Combs
Subject: Re: indent-region for long Java strings very slow
Date: Sat, 18 Nov 2006 20:31:14 +0000 (UTC)

In article <address@hidden>,
Ilya Zakharevich  <address@hidden> wrote:
>[A complimentary Cc of this posting was sent to
>address@hidden
><address@hidden>], who wrote in article <address@hidden>:
>> When I build a very long Java String with lots of components (... + ...
>> + ... +), spread out over many lines (each terminated by a newline),
>> indent-region gets very, very slow.
>> 
>> Anybody any idea why and how to avoid this?
>
>I suspect that this indicates c-mode being too dumb to use linear-time
>indent algorithm.  20 years ago it was acceptable to have
>quadratic-time indent logic; one could not do better, since
>parse-partial-sexp was not designed well enough.  But I added
>necessary hooks to parse-partial-sexp (more than?) 10 years ago.
>
>Nowadays all the decent modes should have linear-time logic for
>indent.  It looks like c-mode is not decent enough...
>
>Puzzled,
>Ilya

FOI: are you perhaps thinking of fixing it?


Thanks

David




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