add openscad filetype and syntax

runtime/filetype.vim

@@ -1275,6 +1275,9 @@ au BufNewFile,BufRead *.or			setf openroad
 " OPL
 au BufNewFile,BufRead *.[Oo][Pp][Ll]		setf opl
 
+" OpenSCAD
+au BufNewFile,BufRead *.scad		setf openscad		
+
 " Oracle config file
 au BufNewFile,BufRead *.ora			setf ora
 

runtime/syntax/openscad.vim

@@ -0,0 +1,129 @@
+" Vim syntax file
+" Language:		OpenSCAD
+" Maintainer:	Niklas Adam <adam@oddodd.org>
+" Last change:	2022-04-15
+"
+"
+" From salkin-mada/openscad.nvim
+" Building on the work of Sirtaj Singh Kang and others for vim-openscad
+"
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
+endif
+
+syntax case ignore
+
+setlocal iskeyword=a-z,A-Z,48-57,_
+
+syn match openscadAoperator "{"
+syn match openscadAoperator "}"
+syn match openscadLi "\["
+syn match openscadLi "\]"
+syn match openscadPar "("
+syn match openscadPar ")"
+
+syn match openscadSpecialVariable "\$[a-zA-Z_]\+\>" display
+syn match openscadModifier "^\s*[\*\!\#\%]" display
+
+syn match openscadBinaryoperator "+"
+syn match openscadBinaryoperator "-"
+syn match openscadBinaryoperator "*"
+syn match openscadBinaryoperator "/"
+syn match openscadBinaryoperator "%"
+syn match openscadBinaryoperator "\*\*"
+syn match openscadBinaryoperator "<"
+syn match openscadBinaryoperator "<="
+syn match openscadBinaryoperator ">"
+syn match openscadBinaryoperator ">="
+syn match openscadBinaryoperator "="
+syn match openscadBinaryoperator "=="
+syn match openscadBinaryoperator "==="
+syn match openscadBinaryoperator "!="
+syn match openscadBinaryoperator "!=="
+syn match openscadBinaryoperator "&"
+syn match openscadBinaryoperator "|"
+syn match openscadBinaryoperator "<!"
+syn match openscadBinaryoperator "?"
+syn match openscadBinaryoperator "??"
+syn match openscadBinaryoperator "!?"
+syn match openscadBinaryoperator "!"
+syn match openscadBinaryoperator "#"
+syn match openscadBinaryoperator "_"
+syn match openscadBinaryoperator "\.\."
+syn match openscadBinaryoperator "\.\.\."
+syn match openscadBinaryoperator "`"
+syn match openscadBinaryoperator ":"
+
+syn keyword openscadFunctionDef function nextgroup=openscadFunction skipwhite skipempty
+syn match openscadFunction /\<\h\w*\>/ contained display
+
+syn keyword openscadModuleDef module nextgroup=openscadModule skipwhite skipempty
+syn match openscadModule /\<\h\w*\>/ contained display
+
+syn keyword openscadStatement echo assign let assert
+syn keyword openscadConditional if else
+syn keyword openscadRepeat for intersection_for
+syn keyword openscadInclude include use
+syn keyword openscadCsgKeyword union difference intersection render intersection_for
+syn keyword openscadTransform scale rotate translate resize mirror multmatrix color minkowski hull projection linear_extrude rotate_extrude offset
+syn keyword openscadPrimitiveSolid cube sphere cylinder polyhedron surface
+syn keyword openscadPrimitive2D square circle polygon import_dxf text
+syn keyword openscadPrimitiveImport import child children
+
+syn match openscadNumbers "\<\d\|\.\d" contains=openscadNumber display transparent
+syn match openscadNumber "\d\+" display contained 
+syn match openscadNumber "\.\d\+" display contained 
+
+syn region openscadString start=/"/ skip=/\\"/ end=/"/
+
+syn keyword openscadBoolean true false
+
+syn keyword openscadCommentTodo TODO FIXME XXX NOTE contained display
+syn match openscadInlineComment ://.*$: contains=openscadCommentTodo
+syn region openscadBlockComment start=:/\*: end=:\*/: fold contains=openscadCommentTodo
+
+syn region openscadBlock start="{" end="}" transparent fold
+syn region openscadVector start="\[" end="\]" transparent fold
+
+syn keyword openscadBuiltin abs acos asin atan atan2 ceil cos exp floor ln log
+syn keyword openscadBuiltin lookup max min pow rands round sign sin sqrt tan
+syn keyword openscadBuiltin str len search version version_num concat chr ord cross norm
+syn keyword openscadBuiltin parent_module
+syn keyword openscadBuiltin dxf_cross dxf_dim
+syn keyword openscadBuiltinSpecial PI undef
+
+"""""""""""""""""""""""""""""""""""""""""
+" linkage
+"""""""""""""""""""""""""""""""""""""""""
+hi def link openscadFunctionDef			Structure
+hi def link openscadAoperator 			Function
+hi def link openscadLi 		 			Function
+" hi def link openscadPar 	 			Structure
+hi def link openscadBuiltinSpecial 		Special
+hi def link openscadBinaryoperator 		Special
+hi def link openscadFunction			Function
+hi def link openscadModuleDef			Structure
+hi def link openscadModule			    Function
+hi def link openscadBlockComment		Comment
+hi def link openscadBoolean			    Boolean
+hi def link openscadBuiltin			    Function
+hi def link openscadConditional			Conditional
+hi def link openscadCsgKeyword			Structure
+hi def link openscadInclude			    Include
+hi def link openscadInlineComment	    Comment
+hi def link openscadModifier			Special
+hi def link openscadStatement			Statement
+hi def link openscadNumbers			    Number
+hi def link openscadNumber			    Number
+hi def link openscadPrimitiveSolid		Keyword
+hi def link openscadPrimitive2D 		Keyword
+hi def link openscadPrimitiveImport 	Keyword
+hi def link openscadRepeat			    Repeat
+hi def link openscadSpecialVariable		Special
+hi def link openscadString			    String
+hi def link openscadTransform			Statement
+hi def link openscadCommentTodo			Todo
+
+let b:current_syntax = 'openscad'

src/testdir/test_filetype.vim

@@ -384,6 +384,7 @@ let s:filename_checks = {
     \ 'omnimark': ['file.xom', 'file.xin'],
     \ 'opam': ['opam', 'file.opam', 'file.opam.template'],
     \ 'openroad': ['file.or'],
+    \ 'openscad': ['file.scad'],
     \ 'ora': ['file.ora'],
     \ 'org': ['file.org', 'file.org_archive'],
     \ 'pamconf': ['/etc/pam.conf', '/etc/pam.d/file', 'any/etc/pam.conf', 'any/etc/pam.d/file'],

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4754,
 /**/
     4753,
 /**/