Problem: filetype: help files in git repos are not detected
Solution: detect */doc/*.txt files as help if they end with a help
modeline, even if 'modeline' is off
Here's how I checked that this would still detect vim's own help files
correctly:
$ find . -type f -path '*/doc/*.txt' \
> -exec awk '{ } ENDFILE { print FILENAME ":" $0; }' '{}' + |
> grep -v 'vim:.*\<\(ft\|filetype\)=help\>'
./src/libvterm/doc/seqs.txt: 23 DECSM 42 = DECNRCM, national/multinational character
closes: vim/vim#1681716d6fff98e
Split the pattern into a Lua pattern for the first part and a Vim regex
pattern for the second part, so that if the first part doesn't match
there is no need to use the Vim regex.
Co-authored-by: David Mandelberg <david@mandelberg.org>
638b3c0717