Re: Snippets in doc compile different from stand-alone

[Carl Sorensen]

On 7/10/09 3:43 PM, "Graham Percival" <address@hidden> wrote:

> On Fri, Jul 10, 2009 at 03:37:36PM -0600, Carl Sorensen wrote:
>> Is there a different version of LilyPond called when make doc is running?  I
>> can't figure out what the story is.  Any clues would be appreciated.
> 
> There's different formatting options.

It's not the different fomratting options that I'm wondering about.

Let me give you an example of what I mean.

The following snippet is in rhythms.itely:

When multiple voices are used the @code{Staff} context must be
specified if the beaming is to be applied to all voices in the
staff:

@lilypond[quote,verbatim,relative=2]
\time 7/8
% rhythm 3-1-1-2
% Context not specified - does not work correctly
% Because of autogenerated voices, all beating will
% be at beatLength (1 . 8)
\overrideBeamSettings #'Voice #'(7 . 8) #'end #'((* . (3 1 1 2)))
<< {a8 a a a16 a a a a8 a} \\ {f4. f8 f f f} >>

% Works correctly with context specified
\overrideBeamSettings #'Staff #'(7 . 8) #'end #'((* . (3 1 1 2)))
<< {a8 a a a16 a a a a8 a} \\ {f4. f8 f f f} >>
@end lilypond


The output is attached as from-docs.png

The snippet was then copied to a .ly file:

\relative c''{
\time 7/8 
% rhythm 3-1-1-2
% Context not specified - does not work correctly
% Because of autogenerated voices, all beating will
% be at beatLength (1 . 8)
\overrideBeamSettings #'Voice #'(7 . 8) #'end #'((* . (3 1 1 2)))
<< {a8 a a a16 a a a a8 a} \\ {f4. f8 f f f} >>

% Works correctly with context specified
\overrideBeamSettings #'Staff #'(7 . 8) #'end #'((* . (3 1 1 2)))
<< {a8 a a a16 a a a a8 a} \\ {f4. f8 f f f} >>
}


When run from the command line, the output that results is attached as
FromCommandLine.png.

Note that the beaming in the second measure is different, which is the point
of the snippet.  The one in the docs is wrong; the one from the command line
is correct.  And I have no idea why they're different.

Thanks,

Carl

from-docs.png
Description: from-docs.png

FromCommandLine.png
Description: FromCommandLine.png