Re: tex-function

[Rune Zedeler]

Han-Wen Nienhuys wrote:

> > 2nd question: Why is it that you have such a hard time determining the
> > correct length of a piece of TeX? Isn't it possible to ask tex the
> > length of some text?

> yes, but the length also depends on (La)TeX settings, which you would
> also have to specify. Plus that it is wildly inefficient.

Okay, good point.
So what you do is actually to "emulate" tex to determine the correct
length?
It is really a problem for me that math-mode do not get the correct
length.
The bad solution is to left-justify the text (so that the length do not
affect the position) - and then use tex to centre:

\property Lyrics.LyricText \override #'X-extent-callback = #(lambda (gr
ax) '(-2.5 . 2.5))

\makebox[.5\width][r]{foobar}

This fixes the width of the words to 5 stafflines, but it works.


-Rune