#5249 add a generic markFormatter function

[Malte Meyn]

add a generic markFormatter function

This uses a modified version of the code as seen at
https://lists.gnu.org/archive/html/lilypond-user/2016-05/msg00156.html

All existing markFormatter functions (like f. e.
format-mark-box-letters) are redefined using format-mark-generic.
Also, the markup commands markletter and markalphabet are redefined and
markgeneric is added.

Documentation strings should be added and it should be mentioned in the
NR. Maybe a better user interface (other than 4 booleans in a row)
would be nice to have.

http://codereview.appspot.com/337400043

[Anonymous]

Passes make, make check and a full make doc.

[Anonymous]

Patch on countdown for January 7th.

[Malte Meyn]

add doc string for markup command \markgeneric

http://codereview.appspot.com/337400043

[Malte Meyn]

setting to needs_work although it doesn’t fail make et al. because Werner made a good suggestion that I’ll try to realise in that or a similar form: https://codereview.appspot.com/337400043/#msg2

[Malte Meyn]

improve user interface, remove markup command \markgeneric

http://codereview.appspot.com/337400043

[Anonymous]

passes make, make check and a full make doc.

[Anonymous]

Patch on countdown for Jan 13th

[Anonymous]

Patch counted down - please push.

[Malte Meyn]

commit 1028a2096e3389af5749b55d6c9cbd28f0b2e835
Author: Malte Meyn lilypond@maltemeyn.de
Date: Mon Jan 1 21:02:51 2018 +0100

Issue 5249/2: add regtest

commit 16a3f70519f8f788666620acccd390f946362bcd
Author: Malte Meyn lilypond@maltemeyn.de
Date: Thu Dec 28 18:25:07 2017 +0100

Issue 5249/1: add a generic markFormatter function

All existing markFormatter functions (like f. e.
format-mark-box-letters) are redefined using format-mark-generic. The
function adds new functionality like oval frames, roman numerals,
different double letters after Z etc.

Also, the markup commands \markletter and \markalphabet are redefined.