VIEW MEMBER FEEDACK TO THIS TIP
When processing files from other sources, sometimes you have fixed length files and sometimes you have delimited files. The routines SetVariableValueByLen and SetVariableValue are two generic subroutines that facilitate the process nicely and unclutters your code.
Code: Sub SetVariableValueByLen
( variablename As String, searchstring
As String, strlen As Integer)
variablename = Left(searchstring, strlen)
searchstring = Right(searchstring,
Len(searchstring) - strlen)
End Sub
Sub SetVariableValue( variablename As
String, searchstring As String, searchchar As String)
i = 0
charat = 0
For i = 1 To Len(searchstring)
bchar = Mid(searchstring, i, 1)
If bchar = searchchar Then
charat = i
'set i to the len of search so it
will quit looping unnecessarily
i = Len(searchstring)
End If
Next
If ( charat = 0 ) Then
'no searchchar found
variablename = Fulltrim(searchstring)
Else
If ( charact = 1) Then
variablename = ""
searchstring = Right(searchstring,
Len(searchstring) - charat)
Else
variablename = Left(searchstring, charat -1)
searchstring = Right(searchstring,
Len(searchstring) - charat)
End If
End If
End Sub
SAMPLE CALLING ROUTINE
fname = ws.OpenFileDialog(False,
"Select file to be imported",, pathname)
If Not(Isempty(fname)) Then
Set stream = session.CreateStream
pathname = Cstr(fname(0))
If Not stream.Open(pathname, "ASCII") Then
Messagebox pathname,, "Open failed"
Exit Sub
End If
If stream.Bytes = 0 Then
Messagebox pathname,, "File has no content"
Exit Sub
End If
cnt = 0
Do
cnt = cnt + 1
buffer$ = stream.ReadText
(STMREAD_LINE, EOL_CRLF)
REM Discard lines with only LF + CR
While buffer$ = Chr(13) & Chr(10) _
And (Not stream.IsEOS)
buffer$ = stream.ReadText(STMREAD_LINE)
Wend
REM Process each line
datavalue = buffer$
Call SetVariableValueByLen( checkstatus,
datavalue, 1) Call SetVariableValueByLen
( bankdiv, datavalue,
3) Call SetVariableValueByLen( account,
datavalue, 10) Call SetVariableValueByLen
( checknum, datavalue,
10) Call SetVariableValueByLen( yy, datavalue,
2) Call SetVariableValueByLen( mm, datavalue,
2) Call SetVariableValueByLen( dd, datavalue,
2) Call SetVariableValueByLen( amountstr, datavalue,
10) amount = Ccur( amountstr) \ 100
Call SetVariableValueByLen( temp, datavalue,
1) Call SetVariableValueByLen( unitcode, datavalue,
3) Call SetVariableValueByLen( vendorid, datavalue,
16) Call CreateCheckDoc() Loop
Until stream.IsEOS Call stream.Close
MEMBER FEEDBACK TO THIS TIP
for delimited files I prefer something like this. I feel it's lot more readable:
Dim RecordEntry As Variant
Line Input #Fh%, EntireLine
'Explode the values from that
record to return individual field values
RecordEntry =
Evaluate (|@Explode("| & EntireLine & |" ; ";")|)
Call doc.ReplaceItemValue("Field1", RecordEntry(0))
Call doc.ReplaceItemValue("Field2", RecordEntry(1))
Call doc.ReplaceItemValue("Field3", RecordEntry(2))
...
—Thilo H.
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