syn keyword factorBreakpoint B
syn keyword factorFrySpecifier @ _ contained
syn keyword factorDeclaration delimiter deprecated final flushable foldable inline recursive
-syn match factorCallQuotation /\<call(\s\(\S*\s\)\?--\(\s\S*\)\?\s)\>/
-syn match factorExecute /\<execute(\s\(\S*\s\)\?--\(\s\S*\)\?\s)\>/
+syn match factorCallQuotation /\<call(\s\+\(\S*\s\+\)*--\(\s\+\S*\)*\s\+)\>/ contained contains=factorStackEffect
+syn match factorExecute /\<execute(\s\+\(\S*\s\+\)*--\(\s\+\S*\)*\s\+)\>/ contained contains=factorStackEffect
syn keyword factorCallNextMethod call-next-method
syn keyword factorKeyword or 2bi 2tri while wrapper nip 4dip wrapper? bi* callstack>array both? hashcode die dupd callstack callstack? 3dup tri@ pick curry build ?execute 3bi prepose >boolean ?if clone eq? tri* ? = swapd 2over 2keep 3keep clear 2dup when not tuple? dup 2bi* 2tri* call tri-curry object bi@ do unless* if* loop bi-curry* drop when* assert= retainstack assert? -rot execute 2bi@ 2tri@ boa with either? 3drop bi curry? datastack until 3dip over 3curry tri-curry* tri-curry@ swap and 2nip throw bi-curry (clone) hashcode* compose 2dip if 3tri unless compose? tuple keep 2curry equal? assert tri 2drop most <wrapper> boolean? identity-hashcode identity-tuple? null new dip bi-curry@ rot xor identity-tuple boolean
"syn match factorStackEffectErr /\<)\>/
"syn region factorStackEffectErr start=/\<(\>/ end=/\<)\>/
"syn region factorStackEffect start=/\<(\>/ end=/\<)\>/ contained
-syn match factorStackEffect /\<(\s\(\S*\s\)\?--\(\s\S*\)\?\s)\>/ contained
-syn match factorLiteralStackEffect /\<((\s\(\S*\s\)\?--\(\s\S*\)\?\s))\>/
+syn match factorStackEffect /(\s\+\(\S*\s\+\)*--\(\s\+\S*\)*\s\+)\>/ contained contains=factorStackDelims,factorStackItems,factorCallExecuteDelim
+syn match factorLiteralStackEffect /((\s\+\(\S*\s\+\)*--\(\s\+\S*\)*\s\+))\>/ contained contains=factorStackDelims,factorStackItems
+syn match factorStackItems contained "\<\S\+\>"
+syn keyword factorStackDelims contained ( ) (( )) --
+syn match factorCallExecuteDelim contained /(\s/
"adapted from lisp.vim
if exists("g:factor_norainbow")
HiLink factorShebang PreProc
HiLink factorShebangErr Error
HiLink factorStackEffect Typedef
+ HiLink factorStackDelims Delimiter
+ HiLink factorCallExecuteDelim Delimiter
+ HiLink factorStackItems Identifier
HiLink factorLiteralStackEffect Typedef
HiLink factorTodo Todo
HiLink factorInclude Include