Update runtime files
diff --git a/runtime/syntax/meson.vim b/runtime/syntax/meson.vim
index 7e6b565..0af0d77 100644
--- a/runtime/syntax/meson.vim
+++ b/runtime/syntax/meson.vim
@@ -3,7 +3,7 @@
" License: VIM License
" Maintainer: Nirbheek Chauhan <nirbheek.chauhan@gmail.com>
" Liam Beguin <liambeguin@gmail.com>
-" Last Change: 2019 Oct 18
+" Last Change: 2021 Aug 16
" Credits: Zvezdan Petkovic <zpetkovic@acm.org>
" Neil Schemenauer <nas@meson.ca>
" Dmitry Vasiliev
@@ -56,9 +56,11 @@
" Meson only supports integer numbers
" http://mesonbuild.com/Syntax.html#numbers
syn match mesonNumber "\<\d\+\>"
+syn match mesonNumber "\<0x\x\+\>"
+syn match mesonNumber "\<0o\o\+\>"
" booleans
-syn keyword mesonConstant false true
+syn keyword mesonBoolean false true
" Built-in functions
syn keyword mesonBuiltin
@@ -97,6 +99,7 @@
\ install_headers
\ install_man
\ install_subdir
+ \ install_emptydir
\ is_disabler
\ is_variable
\ jar
@@ -118,6 +121,7 @@
\ summary
\ target_machine
\ test
+ \ unset_variable
\ vcs_tag
\ warning
\ range
@@ -133,15 +137,15 @@
" The default highlight links. Can be overridden later.
hi def link mesonStatement Statement
hi def link mesonConditional Conditional
-hi def link mesonRepeat Repeat
+hi def link mesonRepeat Repeat
hi def link mesonOperator Operator
hi def link mesonComment Comment
hi def link mesonTodo Todo
-hi def link mesonString String
-hi def link mesonEscape Special
-hi def link mesonNumber Number
+hi def link mesonString String
+hi def link mesonEscape Special
+hi def link mesonNumber Number
hi def link mesonBuiltin Function
-hi def link mesonConstant Number
+hi def link mesonBoolean Boolean
if exists("meson_space_error_higlight")
hi def link mesonSpaceError Error
endif