Jean-Marc Lasgouttes d4685f2806 Never, never use a string for something that has 3 values
This commit replaces the string math_number_before by a proper math_number enum.

Note that the _before naming was misleading. It was chosen at a time
when we were not sure whether leqno was always left or could be right
in RtL documents.

Note that the token in LyX document is still \math_number_before and
this should be changed.

Fixup for 19cc4a1f.
2017-05-12 12:00:43 +02:00
..
2017-04-05 00:01:19 +02:00