Subtitles don't influence display order, so don't need to be touched.
OK, I now have a subtitle with a comma ('Ring the Bell, Watchman').
If it was the main title I'd have to do something else, but it isn't,
so for now...
Ideally I'd like the ABC character entities to survive Markdown and then
get converted. But because they start with '\', they don't. So I have
no alternative but to convert them to HTML entities, which Markdown then
converts to UTF-8.
- Move title fixups into Python.
- Move key display name expansion into Python.
- Add Dottes-specific header continuation line format. None of the usual
tools appears to support the official +: continuation.
Also default to HTML entity output, and replace --contains with
--starts, which does the same thing but checks only the start of
the line and removes the matched item.
Currently we rely on any N: field with a Change: subnotice being the first
N: field. Add --contains field to abcfield.py to remove this restriction.
Also use it to extract new subfield Credit: and add that if present
to the tune information in print and on web.
This is done by
a) reducing the page margins
b) compressing the heading and removing all but Notes: fields.
The latter produced vertically smaller tune PDFs that will scale wider.
In the process, modify abctitle.py to extract the first of any header field, and
move formatting for a single tune into a .fmt file.