I'm working on yet another VIM emulation mode.
Currently I'm implementing EX commands. I've looked through VIM source
and found that EX commands are parsed by do_one_cmd function in
src/ex_docmd.c line 1686.
It is 1069 lines long...
After looking at it I have a question: is there some PEG, CFG, BNF,
... spec for EX commands?
Googling didn't help much, only some very basic stuff is done in Ragel
or LEMON parser generators.
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