cpp.vim: Add raw string highlighting.

jwakely · jwakely · commit bc5441284bb4 · 2013-03-31T22:18:40.000+01:00
diff --git a/syntax/cpp.vim b/syntax/cpp.vim
@@ -46,6 +46,10 @@ if !exists("cpp_no_cpp11")
   syn keyword cppConstant	ATOMIC_WCHAR_T_IS_LOCK_FREE ATOMIC_SHORT_IS_LOCK_FREE
   syn keyword cppConstant	ATOMIC_INT_IS_LOCK_FREE ATOMIC_LONG_IS_LOCK_FREE
   syn keyword cppConstant	ATOMIC_LLONG_IS_LOCK_FREE ATOMIC_POINTER_IS_LOCK_FREE
+
+  " A raw-string looks like R"d(...)d" where d is a (possibly empty) sequence of
+  " A-Z a-z 0-9 _ { } [ ] # < > % : ; . ? * + - / ^ & | ~ ! = , " '
+  syn region cppRawString  matchgroup=cppRawDelim start=+R"\z([[:alnum:]_{}[\]#<>%:;.?*+\-/\^&|~!=,"']*\)(+ end=+)\z1"+ contains=@Spell
 endif
 
 " The minimum and maximum operators in GNU C++
@@ -69,6 +73,8 @@ if version >= 508 || !exists("did_cpp_syntax_inits")
   HiLink cppStructure		Structure
   HiLink cppBoolean		Boolean
   HiLink cppConstant		Constant
+  HiLink cppRawDelim		cFormat
+  HiLink cppRawString		String
   delcommand HiLink
 endif
 
