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Default Replacing a string within a text file

Dave,

If you are happy with VBA then I would continue on that path.
VBScript could do the job but that's true of just about any language
you could think of. The advantage of continuing with Excel/VBA is
Excel gives you somewhere convenient to place your list of term to
replace, somewhere to put buttons to run the code etc etc.

How large are your files? Will the text to replace ever be split
across two lines in the file? If the files are not huge then the
easiest approach would be to read in the whole file and use the
Replace() function to run each of the replace operations in turn

'read in file content to variable strContent

dim rngReplace as range

set rngReplace = activesheet.range("A1")

do while rngReplace.value<""

strContent = Replace(strContent, rngReplace.value,
rngReplace.offset(0,1).value)

set rngReplace = rngReplace.offset(1,0)
loop

'write out strContent to new file

Tim.


"DHallam" wrote
in message
...

Hi,

I an trying to put together code that will let me replace text in a
text file. I have copied a previous example off this web site and
it
works well. The only trouble is I want to find a string within a
text
file and replace not only that string but the following 10 strings.

The example below replaces whats in cell A1 with B1 but I would like
this to be extended to L2, is this possible?

Many Thanks
Dave

Sub ReplaceTextInFile(SourceFile As String, _
sText As String, rText As String)


Dim TargetFile As String, tLine As String, tString As String
Dim p As Integer, i As Long, F1 As Integer, F2 As Integer
SourceFile = "C:\Documents and Settings\Chris
Hallam\Desktop\origionalRESULT.txt"
TargetFile = "C:\Documents and Settings\Chris
Hallam\Desktop\New.txt"

If Dir(SourceFile) = "" Then Exit Sub
If Dir(TargetFile) < "" Then
On Error Resume Next
Kill TargetFile
On Error GoTo 0
If Dir(TargetFile) < "" Then
'MsgBox TargetFile & _
'" already open, close and delete / rename the file and
try again.", _
vbCritical
Exit Sub
End If
End If


F1 = FreeFile
Open SourceFile For Input As F1
F2 = FreeFile
Open TargetFile For Output As F2
i = 1 ' line counter
Application.StatusBar = "Reading data from " & _
TargetFile & " ..."

While Not EOF(F1)
If i Mod 100 = 0 Then Application.StatusBar = _
"Reading line #" & i & " in " & _
TargetFile & " ..."
Line Input #F1, tLine
If sText < "" Then
ReplaceTextInString tLine, sText, rText
End If
Print #F2, tLine
i = i + 1
Wend

Application.StatusBar = "Closing files ..."

Close F1
Close F2

Kill SourceFile ' delete original file
Name TargetFile As SourceFile ' rename temporary file

Application.StatusBar = False

End Sub

Private Sub ReplaceTextInString(SourceString As String, _
SearchString As String, ReplaceString As String)
Dim p As Integer, NewString As String
Do
p = InStr(p + 1, UCase(SourceString), UCase(SearchString))
If p 0 Then ' replace SearchString with ReplaceString
NewString = ""
If p 1 Then NewString = Mid(SourceString, 1, p - 1)
NewString = NewString + ReplaceString
NewString = NewString + Mid(SourceString, _
p + Len(SearchString), Len(SourceString))
p = p + Len(ReplaceString) - 1
SourceString = NewString
End If
If p = Len(NewString) Then p = 0
Loop Until p = 0
End Sub

Sub TestReplaceTextInFile()
ReplaceTextInFile ThisWorkbook.Path & _
"\ReplaceInTextFile.txt", Range("a2"), Range("b1")
End Sub


--
DHallam
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