fix rust pub highlight

rc/filetype/rust.kak

@@ -82,8 +82,9 @@ add-highlighter shared/rust/code/question_mark          regex \? 0:meta
 add-highlighter shared/rust/code/function_call          regex _?[a-zA-Z]\w*\s*(?=\() 0:function
 add-highlighter shared/rust/code/generic_function_call  regex _?[a-zA-Z]\w*\s*(?=::<) 0:function
 add-highlighter shared/rust/code/function_declaration   regex (?:fn\h+)(_?\w+)(?:<[^>]+?>)?\( 1:function
-add-highlighter shared/rust/code/keywords               regex \b(?:let|as|fn|return|match|if|else|loop|for|in|while|break|continue|box|where|impl|dyn|unsafe|async|await|mod|crate|use|extern|trait|struct|enum|union|type|default)\b 0:keyword
+add-highlighter shared/rust/code/keywords               regex \b(?:as|break|continue|crate|else|enum|extern|false|fn|for|if|impl|in|let|loop|match|mod|pub|return|self|Self|struct|super|trait|true|type|unsafe|use|where|while|async|await|dyn|abstract|become|box|do|try)\b 0:keyword
 add-highlighter shared/rust/code/storage                regex \b(move|mut|ref|static|const)\b 0:type
+add-highlighter shared/rust/code/pub_with_scope         regex \b(pub)\h*(\()\h*(crate|super|self|in\h+[\w:]+)\h*(\)) 1:keyword 2:meta 4:meta
 # after let can be an arbitrary pattern match
 add-highlighter shared/rust/code/macro                  regex \b\w+! 0:meta
 # the number literals syntax is defined here:

test/highlight/rust/pub/cmd

@@ -0,0 +1 @@
+

test/highlight/rust/pub/in

@@ -0,0 +1,17 @@
+// bare
+pub
+
+// with scope
+pub(crate)
+pub (crate)
+pub(super)
+pub(self)
+pub(in ::foo)
+pub(in foo)
+pub(in foo::bar)
+pub(in foo::bar::baz)
+
+// not valid pub expression, parens not colored
+pub(crat)
+pub(in)
+spub(crate)

test/highlight/rust/pub/rc

@@ -0,0 +1,3 @@
+source "%val{runtime}/colors/default.kak"
+source "%val{runtime}/rc/filetype/rust.kak"
+set buffer filetype rust