[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Yet another 2 patches for music streams

From: Han-Wen Nienhuys
Subject: Re: Yet another 2 patches for music streams
Date: Mon, 22 May 2006 15:34:14 +0200
User-agent: Thunderbird (X11/20060501)

Erik Sandberg schreef:
> I think the proper way is to make it a music macro; is it OK to keep
> it a music function until music macros exist? (also, the music
> function code attempts to signal errors when \once is used in the
> wrong place, so from a user's point of view, little changes)

Why do you want to make it a macro?

It removes a rule from the parser, and it makes it possible to reuse
\once for future commands where it's relevant.

Because \once is tied to property settings,
\set #'foo=#bar
translates into somethign like
(property-operation 'set '() 'foo 'bar)
and \once \set #'foo=#bar
would naturally translates into something like
(property-operation 'set '() 'foo 'bar #t)
i.e., it's natural to view \once as operating on the syntax.

(I realise now that I can achieve the same inside parser by shuffling
around rules a bit, but I don't see any advantage)

I don't see how you can apply to anything else besides property settings, and that's exactly why I want to keep it with property settings. Making it a macro, which is processed at a later stage sounds like a fragile solution to me.


Han-Wen Nienhuys - address@hidden -

LilyPond Software Design
 -- Code for Music Notation

reply via email to

[Prev in Thread] Current Thread [Next in Thread]