${StrRep} is not working properly.

I want to replace "/s" as empty
Here's my code:

!include "StrFunc.nsh"
${StrRep}

....
StrCpy $1 "/s"
${StrRep} $0 $SOME_STRING $1 ""

But I found all special characters like ':' and '/' are missing and "s" wasn't replaced.

are you using an outdated version, perhaps?

!include "StrFunc.nsh"

${StrRep}





Name "Test"

OutFile "SetupTest.exe"

InstallDir "$PROGRAMFILES\Test"



Section "A" "aSection"

	StrCpy $1 "/s"

	${StrRep} $0 "hello: /s /worlds/" $1 ""

	MessageBox MB_OK "[$0]"

SectionEnd

gives messagebox:

---------------------------

Test Setup

---------------------------

[hello:  /worlds/]

---------------------------

OK   

---------------------------

Seems to me like only "/s" got replaced?