Line-drawing character mappings in insert mode for Vim

linedraw.vim

" Vimscript file to allow easy insertion of line-drawing
" characters in insert mode.

" Currently based on the numeric keyboard layout of most
" keyboards - other possibilities include using + for ┼, etc.
"789+ ┌┬┐│
"456  ├┼┤
"123  └┴┘
"0    ─
function LineD ()
    inoremap 1 └
    inoremap 2 ┴
    inoremap 3 ┘
    inoremap 4 ├
    inoremap 5 ┼
    inoremap 6 ┤
    inoremap 7 ┌
    inoremap 8 ┬
    inoremap 9 ┐
    inoremap 0 ─
    inoremap + │
endfunc

function LineT ()
    " Ensure mappings exist to avoid error messages
    inoremap 1 .
    inoremap 2 .
    inoremap 3 .
    inoremap 4 .
    inoremap 5 .
    inoremap 6 .
    inoremap 7 .
    inoremap 8 .
    inoremap 9 .
    inoremap 0 .
    inoremap + .
    iunmap 1
    iunmap 2
    iunmap 3
    iunmap 4
    iunmap 5
    iunmap 6
    iunmap 7
    iunmap 8
    iunmap 9
    iunmap 0
    iunmap +
endfunc

command LLine call LineD()
command LText call LineT()