From f6fe760b2dc2abd91812d55a8120911e5d744e66 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Mon, 8 Aug 2022 11:31:07 +0200
Subject: Better syntax highlighting

---
 editors/vim/syntax/bruijn.vim | 53 ++++++++++++++++---------------------------
 1 file changed, 20 insertions(+), 33 deletions(-)

(limited to 'editors/vim/syntax/bruijn.vim')

diff --git a/editors/vim/syntax/bruijn.vim b/editors/vim/syntax/bruijn.vim
index 4782f1f..d11cccc 100644
--- a/editors/vim/syntax/bruijn.vim
+++ b/editors/vim/syntax/bruijn.vim
@@ -5,38 +5,25 @@ if exists("b:current_syntax")
   finish
 endif
 
-let s:bruijn_syntax_keywords = {
-      \ 'bruijnInstruction' :[":test "
-      \ ,                     ":import "
-      \ ,                     ":print "
-      \ ,                    ]
-      \ , }
-
-function! s:syntax_keyword(dict)
-  for key in keys(a:dict)
-    execute 'syntax keyword' key join(a:dict[key], ' ')
-  endfor
-endfunction
-
-call s:syntax_keyword(s:bruijn_syntax_keywords)
-
-syntax match bruijnApplication /[()]/
-syntax match bruijnAbstraction /[[\]]/
-syntax match bruijnIndex display "\d"
-syntax match bruijnDefinition /^\S\+/
-
-syntax region bruijnCommentLine start="# " end="$"
-
-" this might be weird but because of bruijn's limited
-" functionality it's okay to use the wrong constants
-" for better looks
-highlight default link bruijnIndex Special
-highlight default link bruijnDefinition Function
-highlight default link bruijnInstruction Keyword
-highlight default link bruijnAbstraction Boolean
-highlight default link bruijnApplication String
-highlight default link bruijnCommentLine Comment
-
-delfunction s:syntax_keyword
+syn match bruijnApplication /[()]/
+syn match bruijnAbstraction /[[\]]/
+syn match bruijnIndex display "\d"
+syn match bruijnNumber /[+-]\d\+/
+syn match bruijnDefinition /^\t*\S\+/
+syn match bruijnKeyword /:test\|:import\|:print/
+syn match bruijnNamespace /[A-Z][a-z]*\(\.\)\@=/
+syn match bruijnNamespaceDelim /\([A-Z][a-z]*\)\@<=\./
+
+syn region bruijnCommentLine start="^# " end="$"
+
+hi def link bruijnIndex Special
+hi def link bruijnNumber Number
+hi def link bruijnDefinition Define
+hi def link bruijnKeyword Macro
+hi def link bruijnNamespace Type
+hi def link bruijnNamespaceDelim Special
+hi def link bruijnAbstraction Function
+hi def link bruijnApplication String
+hi def link bruijnCommentLine Comment
 
 let b:current_syntax = "bruijn"
-- 
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