Re: Paper block ordering

[David Kastrup]

Jay Anderson <address@hidden> writes:

> In 2.15.19 the ordering of things in the paper block matters where it
> didn't before.

I think that is a wrong characterization.

> An example which removes the first system indent:
>
> ============
> \version "2.15.19"
>
> \paper
> {
>   indent = 0\in
>   #(set-paper-size "letter")
>   %indent = 0\in %Move the indent here to have the indent take effect.
> }
>
> \score { \new Staff {R1} }
> ============
>
> This is a very minor issue (if it is an issue rather than a design
> decision going forward), but I figured that it's worth mentioning.

Now try the following with an older version

\paper
{
  indent = 0\in
  ragged-right = ##t
  #(set-paper-size "letter")
}
\score { \new Staff {R1} }


See?  If you take a look at the definition of set-paper-size, you will
see that it _always_ has set indent as well.  Previous to 2.15.19, # was
executed by the _lexer_ as a lookahead token _before_ doing the
assignment to indent.  It was shere luck that your indent assignment was
executed _after_ set-paper-size.

Now #, while being read by the lexer, is actually being executed in the
parser at a sane point of time.

-- 
David Kastrup