(?P<filename>\S+?)
})''',
+ 'musicxml_file':
+ r'''(?smx)
+ ^[^%\n]*?
+ (?P<match>
+ \\musicxmlfile\s*(
+ \[
+ \s*(?P<options>.*?)\s*
+ \])?\s*\{
+ (?P<filename>\S+?)
+ })''',
+
'singleline_comment':
r'''(?mx)
^.*?
OUTPUT: r'''{%%
\parindent 0pt
+\noindent
\ifx\preLilyPondExample \undefined
\else
\expandafter\preLilyPondExample