Highlight parent if--else

Highlight parent if--else

[Will Chang]

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Hi all,

I knew highlight-parentheses can highlight the parent ( { or[. Is it
possible to highlight the parent key words.

for example:

I often write some pl-sql like this.

IF piNum>0 THEN

ELSEIF piNum =-1 THEN

ELSE

END IF.

Can we highlight IF, ELSE END IF just like highlight-parentheses?

Thanks for your help.

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Re: Highlight parent if--else

[Xah]

On Jul 30, 6:30 pm, "Will Chang" <changwei...@gmail.com> wrote:
> Hi all,
>
> I knew highlight-parentheses can highlight the parent ( { or[. Is it
> possible to highlight the parent key words.
>
> for example:
>
> I often write some pl-sql like this.
>
> IF piNum>0 THEN
>
> ELSEIF piNum =-1 THEN
>
> ELSE
>
> END IF.
>
> Can we highlight IF, ELSE END IF just like highlight-parentheses?

From recent discussion on exactly this few months ago, the short
answer is that currently there's no elisp code that do what you want.

However, it is possible to write one that does that by using elisp's
syntax table.

  Xah
∑ http://xahlee.org/

☄

Re: Highlight parent if--else

[Nikolaj Schumacher]

Xah <xahlee@gmail.com> wrote:

> On Jul 30, 6:30 pm, "Will Chang" <changwei...@gmail.com> wrote:
>> Can we highlight IF, ELSE END IF just like highlight-parentheses?
>
> However, it is possible to write one that does that by using elisp's
> syntax table.

I don't think so.  Syntax tables can only match single characters.

One would have to write versions of `up-list' and maybe `forward-sexp'.
The rest can be done with existing code.


regards,
Nikolaj Schumacher

Re: Highlight parent if--else

[Will Chang]

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both sql and ruby use if..else.... I think this feature is very useful.

But I just don't how to implement it. I am new comer to emacs.

Someone can give me more details to implement it? Thanks.



On Thu, Jul 31, 2008 at 4:59 PM, Nikolaj Schumacher <n_schumacher@web.de>wrote:

> Xah <xahlee@gmail.com> wrote:
>
> > On Jul 30, 6:30 pm, "Will Chang" <changwei...@gmail.com> wrote:
> >> Can we highlight IF, ELSE END IF just like highlight-parentheses?
> >
> > However, it is possible to write one that does that by using elisp's
> > syntax table.
>
> I don't think so.  Syntax tables can only match single characters.
>
> One would have to write versions of `up-list' and maybe `forward-sexp'.
> The rest can be done with existing code.
>
>
> regards,
> Nikolaj Schumacher
>
>
>

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Re: Highlight parent if--else

[Xah]

On Jul 31, 3:07 am, "Will Chang" <changwei...@gmail.com> wrote:
> I knew highlight-parentheses can highlight the parent ( { or[.

> Is it possible to highlight the parent key words.

> both sql and ruby use if..else.... I think this feature is very useful.
>
> But I just don't how to implement it. I am new comer to emacs.
>
> Someone can give me more details to implement it? Thanks.

the thread is here:

Newsgroups: gnu.emacs.help
Date: Sun, 30 Dec 2007 17:02:01 -0600
Subject: jump between if-fi

http://groups.google.com/group/gnu.emacs.help/browse_frm/thread/71aefbc6b1684c38/

It would be rather a major project i think.

  Xah
∑ http://xahlee.org/

☄