Very basic syntax highlighting

4 files changed, 60 insertions, 0 deletions

diff --git a/editors/vim/README.md b/editors/vim/README.md
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+# Vim syntax highlighting
+
+## Install manually
+
+Copy or symlink this directory to your vim plugins directory, e.g. using
+the following command inside this directory:
+
+    mkdir -p $HOME/.vim/pack/plugins/start/
+    ln -s $PWD $HOME/.vim/pack/plugins/start/bruijn
+
+## Install with a plugin manager
+
+In this example using vim-plug (others should work similarly):
+
+1.  Add `Plug 'marvinborner/bruijn', { 'rtp': 'editors/vim' }` to your
+    `.vimrc`
+2.  Run `:PlugInstall`
diff --git a/editors/vim/ftdetect/bruijn.vim b/editors/vim/ftdetect/bruijn.vim
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+++ b/editors/vim/ftdetect/bruijn.vim
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+au BufRead,BufNewFile *.bruijn set filetype=bruijn
diff --git a/editors/vim/indent/bruijn.vim b/editors/vim/indent/bruijn.vim
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+++ b/editors/vim/indent/bruijn.vim
diff --git a/editors/vim/syntax/bruijn.vim b/editors/vim/syntax/bruijn.vim
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+++ b/editors/vim/syntax/bruijn.vim
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+" Vim syntax file
+" Language: Bruijn
+
+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
+
+let b:current_syntax = "bruijn"