initial commit (with much gratitude to sloum's slope syntax file)

Makefile

@@ -0,0 +1,27 @@
+UNAME := $(shell uname -s)
+LANGNAME := neb
+
+SYN := /syntax
+FT := /ftdetect
+
+ifeq ($(OS), Windows_NT)
+	ROOT := $(HOME)/vimfiles
+else
+	ifeq ($(UNAME), Haiku)
+		ROOT := /boot/home/config/settings/vim
+	else
+		ROOT := ~/.vim
+	endif
+endif
+
+.PHONY: install
+install: ./syntax/${LANGNAME}.vim ./ftdetect/${LANGNAME}.vim
+	install -d ${ROOT}${SYN}
+	install -d ${ROOT}${FT}
+	install -m 0644 .${SYN}/${LANGNAME}.vim ${ROOT}${SYN}
+	install -m 0644 .${FT}/${LANGNAME}.vim ${ROOT}${FT}
+
+.PHONY: remove
+remove:
+	rm -rf ${ROOT}${SYN}/${LANGNAME}.vim
+	rm -rf ${ROOT}${FT}/${LANGNAME}.vim

README.md

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+# neb vim syntax
+Vim syntax highlighting for neb
+
+## to install
+Assuming neb is installed as `neb`:
+```shell
+neb vim-syntax-maker.neb >> syntax/neb.vim
+make
+```

ftdetect/neb.vim

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+autocmd BufRead,BufNewFile *.neb set filetype=neb
+let did_load_filetypes = 1
+
+" finish if the filetype was detected
+if did_filetype()
+    finish
+endif
+
+if getline(1) =~ '^#!.*neb'
+    setfiletype neb
+endif

syntax/neb.vim

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+" Vim syntax file 
+" Language:	neb
+" Maintainer:  	mryouse <mryouse@rawtext.club>
+" with apologies to slope and ~sloum
+
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+let b:current_syntax = "neb"
+
+setlocal iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
+
+" types
+syn match nebType ":[a-zA-Z0-9\[\]]\+"
+
+" :bool
+syn match nebBool	/\<#true\>/
+syn match nebBool	/\<#false\>/
+
+" comments
+syn keyword nebTodo TODO XXX FIXME BUG NOTE DEBUG contained
+syn region nebComment	start=/\;/ end=/$/ contains=nebTodo
+
+" :string and escapes
+syn region nebString start=/\v"/ skip=/\v\\./ end=/\v"/ contains=nebEscape
+syn match nebEscape /\\\h\{1}/ contained
+
+" catch errors caused by wrong parenthesis and brackets
+syn cluster nebAll		contains=nebRegion,nebComment,nebParenError,nebCommand,nebString,nebEscape,nebBool,nebType,nebFunc
+syn region  nebRegion	matchgroup=Delimiter start="(" skip="|.\{-}|" matchgroup=Delimiter end=")" contains=@nebAll
+syn match   nebParenError	")"
+
+" :number
+syn match nebNumber /\<[0-9]\+\>/
+syn match nebNumber /\<\.[0-9]\+\>/
+syn match nebNumber /\<[0-9]\+\.\>/
+syn match nebNumber /\<[0-9]\+\.[0-9]\+\>/
+
+" synchronization
+syn sync lines=100
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_neb_syntax_inits")
+  if version < 508
+    let did_neb_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+  HiLink nebComment		    Comment
+  HiLink nebString		    String
+  HiLink nebBool	    	  Boolean
+  HiLink nebCommand 		  Statement
+  HiLink nebFunc           Function 
+  HiLink nebParenError	  Error
+  HiLink nebTodo          Todo
+  HiLink nebEscape        Character
+  HiLink nebType            Type
+  HiLink nebNumber          Number
+  delcommand HiLink
+endif

vim-syntax-maker.neb

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+; vim-syntax-maker.neb
+; by mryouse
+;
+; create a vim syntax file based on symbols available in the REPL
+
+; all available function names, as string
+(def all-funcs (map (lambda (x) (last (split x " ")))(map ->string (funcs))))
+
+; statements get highlighted differently
+(def statements (split "if and or branch def lambda func redef quote eval block use use-as type for-each for-count while assert" " "))
+
+; everything that's not a statement
+(def other (filter (lambda (x) (not (in? x statements))) all-funcs))
+
+(print "\n\" generated by vim-syntax-maker.neb")
+(print (concat "syn keyword nebCommand " (join statements " ")))
+(print (concat "syn keyword nebFunc " (join other " ")))