CodeMirror: NSIS mode

## NSIS mode

; This is a comment !ifdef ERROR !error "Something went wrong" !endif OutFile "demo.exe" RequestExecutionLevel user SetDetailsPrint listonly !include "LogicLib.nsh" !include "WinVer.nsh" Section -mandatory Call logWinVer ${If} 1 > 0 MessageBox MB_OK "Hello world" ${EndIf} SectionEnd Function logWinVer ${If} ${IsWin10} DetailPrint "Windows 10!" ${ElseIf} ${AtLeastWinVista} DetailPrint "We're post-XP" ${Else} DetailPrint "Legacy system" ${EndIf} FunctionEnd

MIME types defined: `text/x-nsis`.