79 lines
2.6 KiB
VimL
79 lines
2.6 KiB
VimL
" This script allows for unicode concealing of certain characters
|
|
" For instance -> goes to →
|
|
"
|
|
" It needs vim >= 7.3, set nocompatible, set enc=utf-8
|
|
"
|
|
" If you want to turn this on, let g:idris_conceal = 1
|
|
|
|
if !exists('g:idris_conceal') || !has('conceal') || &enc != 'utf-8'
|
|
finish
|
|
endif
|
|
|
|
" vim: set fenc=utf-8:
|
|
syntax match idrNiceOperator "\\\ze[[:alpha:][:space:]_([]" conceal cchar=λ
|
|
syntax match idrNiceOperator "<-" conceal cchar=←
|
|
syntax match idrNiceOperator "->" conceal cchar=→
|
|
syntax match idrNiceOperator "\<sum\>" conceal cchar=∑
|
|
syntax match idrNiceOperator "\<product\>" conceal cchar=∏
|
|
syntax match idrNiceOperator "\<sqrt\>" conceal cchar=√
|
|
syntax match idrNiceOperator "\<pi\>" conceal cchar=π
|
|
syntax match idrNiceOperator "==" conceal cchar=≡
|
|
syntax match idrNiceOperator "\/=" conceal cchar=≠
|
|
|
|
|
|
let s:extraConceal = 1
|
|
|
|
let s:doubleArrow = 1
|
|
" Set this to 0 to use the more technically correct arrow from bar
|
|
|
|
" Some windows font don't support some of the characters,
|
|
" so if they are the main font, we don't load them :)
|
|
if has("win32")
|
|
let s:incompleteFont = [ 'Consolas'
|
|
\ , 'Lucida Console'
|
|
\ , 'Courier New'
|
|
\ ]
|
|
let s:mainfont = substitute( &guifont, '^\([^:,]\+\).*', '\1', '')
|
|
for s:fontName in s:incompleteFont
|
|
if s:mainfont ==? s:fontName
|
|
let s:extraConceal = 0
|
|
break
|
|
endif
|
|
endfor
|
|
endif
|
|
|
|
if s:extraConceal
|
|
syntax match idrNiceOperator "Void" conceal cchar=⊥
|
|
|
|
" Match greater than and lower than w/o messing with Kleisli composition
|
|
syntax match idrNiceOperator "<=\ze[^<]" conceal cchar=≤
|
|
syntax match idrNiceOperator ">=\ze[^>]" conceal cchar=≥
|
|
|
|
if s:doubleArrow
|
|
syntax match idrNiceOperator "=>" conceal cchar=⇒
|
|
else
|
|
syntax match idrNiceOperator "=>" conceal cchar=↦
|
|
endif
|
|
|
|
syntax match idrNiceOperator "=\zs<<" conceal cchar=«
|
|
|
|
syntax match idrNiceOperator "++" conceal cchar=⧺
|
|
syntax match idrNiceOperator "::" conceal cchar=∷
|
|
syntax match idrNiceOperator "-<" conceal cchar=↢
|
|
syntax match idrNiceOperator ">-" conceal cchar=↣
|
|
syntax match idrNiceOperator "-<<" conceal cchar=⤛
|
|
syntax match idrNiceOperator ">>-" conceal cchar=⤜
|
|
|
|
" Only replace the dot, avoid taking spaces around.
|
|
syntax match idrNiceOperator /\s\.\s/ms=s+1,me=e-1 conceal cchar=∘
|
|
syntax match idrNiceOperator "\.\." conceal cchar=‥
|
|
|
|
syntax match idrNiceOperator "`elem`" conceal cchar=∈
|
|
syntax match idrNiceOperator "`notElem`" conceal cchar=∉
|
|
endif
|
|
|
|
hi link idrNiceOperator Operator
|
|
hi! link Conceal Operator
|
|
setlocal conceallevel=2
|
|
|