Read numbers in the name of a file by NSIS - nsis

Question

I have to extract a file to an output folder in my NSIS installer. The name of the file contains its version number. I need a method to read the number written in the name of my file.
Example File name:
MyFile_4.3_runtime_80968_x64.exe
I used the following code to read it automatically:
Var Version
Section
${GetFileVersion} "F:\FilesToBeInstalled\MyFile_4.3_runtime_?????_x64.exe" $Version
MessageBox MB_OK "Version: $Version"
SectionEnd
earlier it used to work for me. But suddenly it has stopped working. If I write the proper number instead of writing ????? then it works. For example, the following code works for me:
Var Version
Section
${GetFileVersion} "F:\FilesToBeInstalled\MyFile_4.3_runtime_80698_x64.exe" $Version
MessageBox MB_OK "Version: $Version"
SectionEnd

Answer 1

GetFileVersion reads the version-information of the file, it does not parse the file-name. It has likely been a coincidence that it worked before.
You can use WordFind2x to search between two delimiters:
!include "WordFunc.nsh"
Var Version
Var File
Section
# find instances of MyFile_4.3_runtime*
FindFirst $0 $File "F:\FilesToBeInstalled\MyFile_4.3_runtime*.exe"
loop:
StrCmp $File "" done
# parse hit for version string
${WordFind2X} $File "MyFile_4.3_runtime_" ".exe" "-1" $Version
DetailPrint "$File contains version $Version"
FindNext $0 $File
Goto loop
done:
FindClose $0
SectionEnd