diff --git a/runtime/syntax/c.vim b/runtime/syntax/c.vim
index d991540..2e54b8c 100644
--- a/runtime/syntax/c.vim
+++ b/runtime/syntax/c.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	C
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2014 May 26
+" Last Change:	2014 Sep 23
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -35,28 +35,37 @@
 if !exists("c_no_utf")
   syn match	cSpecial	display contained "\\\(u\x\{4}\|U\x\{8}\)"
 endif
-if exists("c_no_cformat")
-  syn region	cString		start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell extend
-  " cCppString: same as cString, but ends at end of line
-  if !exists("cpp_no_cpp11") " ISO C++11
-    syn region cCppString	start=+\(L\|u\|u8\|U\|R\|LR\|u8R\|uR\|UR\)\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
-  else
-    syn region cCppString	start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
-  endif
-  syn region	cCppOut2	contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
-  syn region	cCppSkip	contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
-else
+
+if !exists("c_no_cformat")
+  " Highlight % items in strings.
   if !exists("c_no_c99") " ISO C99
     syn match	cFormat		display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
   else
     syn match	cFormat		display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
   endif
   syn match	cFormat		display "%%" contained
+endif
+
+" cCppString: same as cString, but ends at end of line
+if s:ft ==# "cpp" && !exists("cpp_no_cpp11")
+  " ISO C++11
+  syn region	cString		start=+\(L\|u\|u8\|U\|R\|LR\|u8R\|uR\|UR\)\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell extend
+  syn region 	cCppString	start=+\(L\|u\|u8\|U\|R\|LR\|u8R\|uR\|UR\)\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
+elseif s:ft ==# "c" && !exists("c_no_c11")
+  " ISO C99
+  syn region	cString		start=+\%(L\|U\|u8\)\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell extend
+  syn region	cCppString	start=+\%(L\|U\|u8\)\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
+else
+  " older C or C++
   syn region	cString		start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell extend
-  " cCppString: same as cString, but ends at end of line
   syn region	cCppString	start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
 endif
 
+syn region	cCppOut2	contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
+syn region	cCppSkip	contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
+
+syn cluster	cStringGroup	contains=cCppString,cCppOut2,cCppSkip
+
 syn match	cCharacter	"L\='[^\\]'"
 syn match	cCharacter	"L'[^']*'" contains=cSpecial
 if exists("c_gnu")
@@ -70,12 +79,9 @@
 syn match	cSpecialCharacter display "'\\x\x\{1,2}'"
 syn match	cSpecialCharacter display "L'\\x\x\+'"
 
-if !exists("c_no_c11") " ISO C11
-  if exists("c_no_cformat")
-    syn region	cString		start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell extend
-  else
-    syn region	cString		start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell extend
-  endif
+if (s:ft ==# "c" && !exists("c_no_c11")) || (s:ft ==# "cpp" && !exists("cpp_no_cpp11"))
+  " ISO C11 or ISO C++ 11
+  syn region	cString		start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell extend
   syn match	cCharacter	"[Uu]'[^\\]'"
   syn match	cCharacter	"[Uu]'[^']*'" contains=cSpecial
   if exists("c_gnu")
@@ -102,24 +108,24 @@
 " This should be before cErrInParen to avoid problems with #define ({ xxx })
 if exists("c_curly_error")
   syn match cCurlyError "}"
-  syn region	cBlock		start="{" end="}" contains=ALLBUT,cBadBlock,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell fold
+  syn region	cBlock		start="{" end="}" contains=ALLBUT,cBadBlock,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,@cStringGroup,@Spell fold
 else
   syn region	cBlock		start="{" end="}" transparent fold
 endif
 
-"catch errors caused by wrong parenthesis and brackets
-" also accept <% for {, %> for }, <: for [ and :> for ] (C99)
+" Catch errors caused by wrong parenthesis and brackets.
+" Also accept <% for {, %> for }, <: for [ and :> for ] (C99)
 " But avoid matching <::.
 syn cluster	cParenGroup	contains=cParenError,cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserLabel,cBitField,cOctalZero,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
 if exists("c_no_curly_error")
   if s:ft ==# 'cpp' && !exists("cpp_no_cpp11")
-    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
     syn match	cParenError	display ")"
     syn match	cErrInParen	display contained "^^<%\|^%>"
   else
-    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
     syn match	cParenError	display ")"
@@ -127,13 +133,13 @@
   endif
 elseif exists("c_no_bracket_error")
   if s:ft ==# 'cpp' && !exists("cpp_no_cpp11")
-    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
     syn match	cParenError	display ")"
     syn match	cErrInParen	display contained "<%\|%>"
   else
-    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
     syn match	cParenError	display ")"
@@ -141,19 +147,19 @@
   endif
 else
   if s:ft ==# 'cpp' && !exists("cpp_no_cpp11")
-    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
     syn match	cParenError	display "[\])]"
     syn match	cErrInParen	display contained "<%\|%>"
-    syn region	cBracket	transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
+    syn region	cBracket	transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,@cStringGroup,@Spell
   else
-    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
+    syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,@cStringGroup,@Spell
     " cCppParen: same as cParen but ends at end-of-line; used in cDefine
     syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
     syn match	cParenError	display "[\])]"
     syn match	cErrInParen	display contained "[\]{}]\|<%\|%>"
-    syn region	cBracket	transparent start='\[\|<::\@!' end=']\|:>' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
+    syn region	cBracket	transparent start='\[\|<::\@!' end=']\|:>' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cErrInParen,cCppParen,cCppBracket,@cStringGroup,@Spell
   endif
   " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
   syn region	cCppBracket	transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
@@ -376,7 +382,7 @@
 " Highlight User Labels
 syn cluster	cMultiGroup	contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOutWrapper,cCppInWrapper,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
 if s:ft ==# 'c' || exists("cpp_no_cpp11")
-  syn region	cMulti		transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
+  syn region	cMulti		transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell,@cStringGroup
 endif
 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
 syn cluster	cLabelGroup	contains=cUserLabel
diff --git a/runtime/syntax/valgrind.vim b/runtime/syntax/valgrind.vim
index 48e9564..c247927 100644
--- a/runtime/syntax/valgrind.vim
+++ b/runtime/syntax/valgrind.vim
@@ -2,9 +2,11 @@
 " Language: Valgrind Memory Debugger Output
 " Maintainer: Roger Luethi <rl@hellgate.ch>
 " Program URL: http://devel-home.kde.org/~sewardj/
-" Last Change: 2012 Apr 30
+" Last Change: 2014 Oct 02
 "
 " Notes: mostly based on strace.vim and xml.vim
+"
+" Contributors: Christoph Gysin <christoph.gysin@gmail.com>
 
 " Quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -65,7 +67,7 @@
 syn match valgrindAddr "\(\W\)\@<=0x\x\+" contained
 syn match valgrindFunc "\(: \)\@<=\w\+" contained
 syn match valgrindBin "\((\(with\|\)in \)\@<=\S\+\()\)\@=" contained
-syn match valgrindSrc "\((\)\@<=.*:\d\+\()\)\@=" contained
+syn match valgrindSrc "\((\)\@<=[^)]*:\d\+\()\)\@=" contained
 
 " Define the default highlighting