Update runtime files.
diff --git a/runtime/syntax/nasm.vim b/runtime/syntax/nasm.vim
index d648508..4f70a0f 100644
--- a/runtime/syntax/nasm.vim
+++ b/runtime/syntax/nasm.vim
@@ -1,9 +1,10 @@
" Vim syntax file
" Language: NASM - The Netwide Assembler (v0.98)
-" Maintainer: Andriy Sokolov <andriy145@gmail.com>
+" Maintainer: Andrii Sokolov <andriy145@gmail.com>
" Original Author: Manuel M.H. Stol <Manuel.Stol@allieddata.nl>
" Former Maintainer: Manuel M.H. Stol <Manuel.Stol@allieddata.nl>
-" Last Change: 2012 Feb 7
+" Contributors: Leonard König <leonard.r.koenig@gmail.com> (C string highlighting)
+" Last Change: 2017 Jan 23
" NASM Home: http://www.nasm.us/
@@ -67,8 +68,23 @@
" Constants:
-syn match nasmStringError +["']+
+syn match nasmStringError +["'`]+
+" NASM is case sensitive here: eg. u-prefix allows for 4-digit, U-prefix for
+" 8-digit Unicode characters
+syn case match
+" one-char escape-sequences
+syn match nasmCStringEscape display contained "\\[’"‘\\\?abtnvfre]"
+" hex and octal numbers
+syn match nasmCStringEscape display contained "\\\(x\x\{2}\|\o\{1,3}\)"
+" Unicode characters
+syn match nasmCStringEscape display contained "\\\(u\x\{4}\|U\x\{8}\)"
+" ISO C99 format strings (copied from cFormat in runtime/syntax/c.vim)
+syn match nasmCStringFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
+syn match nasmCStringFormat display "%%" contained
syn match nasmString +\("[^"]\{-}"\|'[^']\{-}'\)+
+" Highlight C escape- and format-sequences within ``-strings
+syn match nasmCString +\(`[^`]\{-}`\)+ contains=nasmCStringEscape,nasmCStringFormat extend
+syn case ignore
syn match nasmBinNumber "\<[0-1]\+b\>"
syn match nasmBinNumber "\<\~[0-1]\+b\>"lc=1
syn match nasmOctNumber "\<\o\+q\>"
@@ -443,7 +459,10 @@
" Constant Group:
hi def link nasmString String
+hi def link nasmCString String
hi def link nasmStringError Error
+hi def link nasmCStringEscape SpecialChar
+hi def link nasmCStringFormat SpecialChar
hi def link nasmBinNumber Number
hi def link nasmOctNumber Number
hi def link nasmDecNumber Number