I had a CSV file with following format: book,chapter,verse_start,verse_end,notes
I wanted to transform the rows to traditional english verse representations (i.e. "1 Timothy 2:2-4")
Unfortunately, this regex always puts a '-' after the verse_start, so if verse_end is empty, the translated version will have a trailing '-'.
Vim needs everything escaped, so here is the actual vim command for the substitution:
12 Timothy,2,2,4,|2 Timothy 2,2,4|A Corinthians 3,3,,|John,3,,,|John,3,,3,