Question

in vim if I set

 iabbrev @@ [e-mail]

when I write in insert mode @@<space> vim replace @@ with [e-mail].

When I write a tex file and I use a single letter in Upper (A,B,…) this letter should be between $ ($A$, $B$, …)

How I can make a iabbrev for this ?

I think in some similar to this

 ia <space>[A-Z]<space> <space>$[A-Z]$<space>

Answer 1

Use a for loop to create 26 abbreviations:

for ch in range(char2nr("A"),char2nr("Z"))
    execute "ia ".nr2char(ch)." $".nr2char(ch)."$"
endfor