On Friday, May 23, 2014 10:36:56 AM UTC+12, Nate Soares wrote:
> Is there a way to get the expansion of a digraph (entered e.g. with ^K in
> insert mode) programatically?
There isn't a vim script way to do this directly. I can think of two ways, one
somewhat unclean, the other pedestrian.
Firstly, this approach may have side effects, might spoil your screen layout,
and harm innocent animals:
function! ExpandDigraph(dig)
if a:dig !~ '^..$'
return ""
endif
new
exe "norm! a\<c-k>" . a:dig . "\<esc>"
let result = getline(".")
close!
return result
endfunc
Secondly: capture the output of the command :digraph, (:help redir) and
reformat it to one column (that's tricky because there's lots of funny
characters), and write it to a file, say "digraphs.txt". Then,
function! ExpandDigraph(dig)
if !exists("s:digs")
let s:digs = {}
for line in readfile("digraphs.txt")
let s:digs[line[0:1]] = line[3:]
endfor
endif
return has_key(s:digs, a:dig) ? s:digs[a:dig] : ""
endfunc
> For example, I have vim set up to insert the ellipsis character '…' when I
> type "^K..". Is there a way, programatically, to write a function
> ExpandDigraph such that ExpandDigraph("..") yields "…"?
BTW, with my vim 7.4.274 on linux ".." is a digraph for "‥" U+2025 TWO DOT
LEADER, not an ellipsis, "…" U+2026 HORIZONTAL ELLIPSIS. My vim only has
digraphs for U+22EF MIDLINE HORIZONTAL ELLIPSIS and U+22EE VERTICAL ELLIPSIS.
If you've defined your own digraphs, and you use my second approach you'd have
to add yours to the file.
Regards, John Little
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