Neil Puttock wrote:
This and the following docstring lines are too long.
Is there a common line length for docstrings? This should also be
mentioned in the CG, I think.
+ Real paper_width = scm_to_double (lookup_variable (ly_symbol2scm
("paper-width")));
+ Real left_margin_default = scm_to_double (lookup_variable
(ly_symbol2scm ("left-margin-default")));
+ Real right_margin_default = scm_to_double (lookup_variable
(ly_symbol2scm ("right-margin-default")));
These are unsafe, since they return SCM_UNSPECIFIED instead of a Real
if the paper variables aren't defined; using robust_scm2double () here
will ensure a default is returned.
You can see the consequences of variable lookup failure by running
bookparts.ly
(http://git.savannah.gnu.org/gitweb/?p=lilypond.git;a=blob;f=input/regression/bookparts.ly;h=a814fb5e072911540ecf2ab44a7b7b09dae61835;hb=HEAD).
This snippet also fails to get a sane value for paper-height in
layout->page-init.
Ok, thanks, I will have a closer look tomorrow.
Cheers,
Michael
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