Re: Ancient bar lines

[Jürgen Reuter]

   Hi Dan and all others,

   yes, the second, more compact / dense version definitely looks _much_
   better!
   I would be happy if you could commit your change!

   Thank you,
   Jürgen


   On Sat, Feb 13, 2021 at 6:03 PM Dan Eble <dan@faithful.be> wrote:

   Jürgen and all,

   I've attached two images of the first system produced for regression
   test input/[1]breathing-sign-ancient.ly and included the relevant
   portion of the input below.

   The current version of master adds some horizontal space after every
   fourth note.  It happens because there are transparent "|" bar lines
   there.
   [?ui=2&amp;ik=2872a7d136&amp;attid=0.1.1&amp;permmsgid=msg-f%3A16916003
   44626503672&amp;th=1779c58d0b641ff8&amp;view=fimg&amp;sz=s0-l75-ft&amp;
   attbid=ANGjdJ-fu66MQ5PzGtQjBstVp-hAPZvkWwXSY2JN7nY2QrzOJ0NjklkFexRkGOlV
   -iHqXNUWTatR3HscoVz8oFGb9yefEYpc-W1PxpM58FEgSqKZy1RW-LkocLgFvBE&amp;dis
   p=emb]

   It is easy to eliminate those spaces by changing the default bar line
   to "" in [2]gregorian.ly, and the other attached image shows the
   result.  I am willing to create a ticket and submit the change for
   review, but I don't have the background to judge whether a change is
   desirable.
   [?ui=2&amp;ik=2872a7d136&amp;attid=0.1.2&amp;permmsgid=msg-f%3A16916003
   44626503672&amp;th=1779c58d0b641ff8&amp;view=fimg&amp;sz=s0-l75-ft&amp;
   attbid=ANGjdJ80iL7QxYoZERcejhGnJC3ZeKWb2SjZEcPiw8aOeBJVuqKF58ZOOvibaJs6
   hi_W0_rUIjrT4teg9uZBnHjrHjfX2_bdZmTaaMSC3echsHGgoOogoXFkYHXr4F0&amp;dis
   p=emb]

   Regards,
   Dan

   \version "2.19.21"
   \header{
     texidoc="
   Gregorian chant notation sometimes also uses commas and ticks, but in
   smaller font size (we call it `virgula' and `caesura').  However, the
   most common breathing signs are divisio minima/@/maior/@/maxima and
   finalis, the latter three looking similar to bar glyphs.
   " }
   \include "[3]gregorian.ly"
   \context VaticanaStaff {
     \relative {
       % here is no \breathe
       c' g c
       % \virgula applies rcomma, but in a smaller font
       c \virgula g c
       % \caesura applies rvarcomma, but in a smaller font
       c \caesura g c
       % \divisioMinima is a simple vertical stroke through the
       % uppermost staffline, just like the original implementation
       % of breathing signs.
       c \divisioMinima g c
       % \divisioMaior, \divisioMaxima and \finalis look like bars and
       % are vertically centered on the staff; the direction property
       % has no effect
       c \divisioMaior g c
       c \divisioMaxima g c
       % this one looks almost like a "||" type bar
       \finalis
     }
   }

References

   1. http://breathing-sign-ancient.ly/
   2. http://gregorian.ly/
   3. http://gregorian.ly/