Add syntax highlighting support for nvim/vim

editor/rorth.vim

@@ -0,0 +1,47 @@
+" Vim syntax file
+" Language: Rorth
+
+" Usage Instructions
+" Put this file in .vim/syntax/rorth.vim
+" and add in your .vimrc file the next line:
+" autocmd BufRead,BufNewFile *.rorth set filetype=rorth
+
+if exists("b:current_syntax")
+  finish
+endif
+
+set iskeyword=a-z,A-Z,-,*,_,!,@
+syntax keyword rorthTodos TODO XXX FIXME NOTE
+
+" Language keywords
+syntax keyword rorthKeywords if else while do include memory fn const end assert
+
+" Comments
+syntax region rorthCommentLine start="//" end="$"   contains=rorthTodos
+
+" String literals
+syntax region rorthString start=/\v"/ skip=/\v\\./ end=/\v"/ contains=rorthEscapes
+
+" Char literals
+syntax region rorthChar start=/\v'/ skip=/\v\\./ end=/\v'/ contains=rorthEscapes
+
+" Escape literals \n, \r, ....
+syntax match rorthEscapes display contained "\\[nr\"']"
+
+" Number literals
+syntax region rorthNumber start=/\s\d/ skip=/\d/ end=/\s/
+
+" Type names the compiler recognizes
+syntax keyword rorthTypeNames addr int ptr bool
+" Set highlights
+highlight default link rorthTodos Todo
+highlight default link rorthKeywords Keyword
+highlight default link rorthCommentLine Comment
+highlight default link rorthString String
+highlight default link rorthNumber Number
+highlight default link rorthTypeNames Type
+highlight default link rorthChar Character
+highlight default link rorthEscapes SpecialChar
+
+let b:current_syntax = "rorth"
+