xml2ly: Bar number comments are off by one

[lemzwerg]

[ef5018a]

Consider the MusicXML file in the attached archive and process it with

xml2ly bar-number-comments.xml > bar-number-comments.ly

There are two issues.

• The created .ly file contains entries like

  \tuplet 3/2 { b'4 b' b' } r  | % 2
  \barNumberCheck #2

  which is very confusing – a casual reader easily gets the impression that % 2 belongs to the line where it is printed. [LilyPond's musicxml2ly script has exactly the same buglet, BTW.] I suggest to completely remove these comments.

• At the end of the music input you can find

  \once\slurDashed b'4 ( b' b' )  | % 4
  \barNumberCheck #4

  However, the MusicXML input has only three bars. I strongly suggest to remove both the comment and the call to \barNumberCheck.

bar-number-comments.zip