Replacing text function value input in txt file not work - vbscript

Question

This is my expiration.txt file :
foo1; 2020-03-01 13:33;
foo2; 2020-02-01 08:45;
foo3; 2020-01-01 11:30;
I need open the expiration.txt file and replace the all date value from:
2020-03-01 13:33 to 2020-03-01
2020-02-01 08:45 to 2020-02-01
2020-01-01 11:30 to 2020-01-01
I have tried this code without success, because the replace not working.
Const ForReading = 1
Const ForWriting = 2
' create object
set oFSO = CreateObject("Scripting.FileSystemObject")
' open the input file
set oInFile = oFSO.OpenTextFile("expiration.txt", 1)
str_input = ""
' for each line in the input file
do while not oInFile.AtEndOfStream
' read the line
str_input = trim(oInFile.ReadLine())
Wscript.echo str_input
' if date found then exit the loop
if isDate(str_input) then
WScript.echo "Date in file found: '" & str_input & "'"
strNewText = Replace(str_input, left(str_input, 10))
Set objFile = oFSO.OpenTextFile("expiration.txt", 2)
objFile.WriteLine strNewText
WScript.echo "Date in file found: '" & strNewText & "'"
exit do
end if
loop
' close the input file
oInFile.close
' release object from memory
set oFSO = nothing
How to do resolve this ?

Answer 1

Using regular expression
Const ForReading = 1
Const ForWriting = 2
' create object
Set oFSO = CreateObject("Scripting.FileSystemObject")
str_input = ""
' open the input file
Set oInFile = oFSO.OpenTextFile("expiration.txt", 1)
' read the file contents
str_input = oInFile.ReadAll()
' close the input file
oInFile.Close
' use regular expression to find and replace text
Set oRegEx = CreateObject("VBScript.RegExp")
With oRegEx
.Multiline = True
.Global = True
.Pattern = "(\d+)-(\d+)-(\d+)\s(\d+):(\d+);" 'will match entire date including ;
End With
str_input = oRegEx.Replace(str_input, "$1-$2-$3;")
' open the input file to overwrite
Set oInFile = oFSO.OpenTextFile("expiration.txt", 2)
oInFile.Write str_input
' close the input file
oInFile.Close
' release object from memory
set oFSO = nothing