Re: parameters in lyrics?

[Graham King]

On Thu, 2015-12-03 at 17:12 +0100, Urs Liska wrote:

Am 03.12.2015 um 17:10 schrieb Graham King:

On Thu, 2015-12-03 at 16:57 +0100, Urs Liska wrote:

Ah, forgot: the ending function would also have to be written before the syllable, so

Three \foo deaf and \bar blind mice are \foobar alive.

should return

Three [deaf and blind] mice are [alive]

Uh, no.  I'd like it to return
    Three [deaf and] blind mice are [alive]

That's the bit I'm struggling with.

You can't do that (I think). But I don't see a problem with writing the function before the syllable.
Or what am I missing?

I've got a lot of music with

foo = \override LyricText.font-shape = #'italic
bar = \revert LyricText.font-shape

and I'd like to redefine foo and bar to replace the italics with [bracketed text].  And to switch between italics and brackets easily.
Apologies: I should have made that clear at the top of the thread.

I might just have to redefine the syntax altogether, so that I can say something like:
Three \foo { deaf and blind } mice.
Going quiet for a bit while I think about that...