Backland
22nd January 2007 14:06 UTC

Writing to 2nd last line of file
Hello,

I'm trying to append a string to the 2nd last line of a text file, but I'm not sure how I can do that. Would this be possible with the NSIS functions or is a plugin needed?

Thanks :D

Red Wine
22nd January 2007 17:01 UTC

See the NSIS documentation,
http://nsis.sourceforge.net/Docs/AppendixE.html#E.2

Name "My Application"
OutFile 'test.exe'
!define TEST_FILE "$EXEDIR\license.txt"

!include TextFunc.nsh

!insertmacro LineFind


Section
        CopyFiles "${NSISDIR}\license.txt" "${TEST_FILE}"

        ${LineFind} "${TEST_FILE}" "" "-2" Example4
        IfErrors 0 +2
        MessageBox MB_OK "Error"
        ExecShell open "${TEST_FILE}"
SectionEnd

Function Example4
        FileWrite $R4 "---First Line---$\r$\n"
        FileWrite $R4 "---Second Line ...---$\r$\n"

        Push $0
FunctionEnd

Backland
22nd January 2007 17:19 UTC

Awesome, thanks a lot red wine!

Red Wine
22nd January 2007 17:29 UTC

You're welcome Backland, thanks goes to Instructor :)