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Compare 2 filepaths (String)

Posted on 1998-10-03
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Last Modified: 2010-04-30

Hi, I have two filepaths and would like to compare in sort
that the following result is produced.

IE.
1 C:\Mary\MyFiles\Data\Graphics\file.tmp
2 C:\Mary\MyFiles\Upload\FTP\file.tmp

Result:
  \Upload\FTP\file.tmp

The idea is to compare number 2 with 1 and remove
folders that are the same.
Note: Without removeing the filename.

0
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Question by:mary_idc
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1 Comment
 

Accepted Solution

by:
jfayling earned 20 total points
ID: 1437934
here is an example of how to use this funciton!


MsgBox CompareFilePaths("C\Mary\MyFiles\Data\Graphics\file.tmp",_
"C:\Mary\MyFiles\Upload\FTP\file.tmp")




Function CompareFilePaths(ByVal strPath1 As String, ByVal strPath2 As String) As String

On Error GoTo CompareFilePathsError

Dim strNewPath As String
Dim lTotal1 As Long
Dim lTotal2 As Long
Dim varArray1 As Variant
Dim varArray2 As Variant
Dim i As Long
Dim j As Long

   
    lTotal1 = ParseString(strPath1, "\", varArray1)
    lTotal2 = ParseString(strPath2, "\", varArray2)
   
    i = 0
    j = 0
    strNewPath = ""
   
    Do
        If LCase$(CStr(varArray2(j))) <> LCase$(CStr(varArray1(j))) Then
            For i = j To lTotal2
                strNewPath = strNewPath + "\" + CStr(varArray2(i))
            Next
            Exit Do
        End If
        j = j + 1
    Loop Until j > lTotal2
   
    CompareFilePaths = strNewPath

    Exit Function
   
CompareFilePathsError:
    CompareFilePaths = ""

End Function


Function ParseString(LookIn As String, Search As String, ByRef ReturnArray As Variant) As Long
'
' Function Name:    ParseString
'
' Author:           JF Software (Jason R. Fayling)
'                   jfayling@glasscity.net
' Date:             1/10/97
'
' Inputs:           LookIn  (STRING)        String to use
'                   Search  (STRING)        What to look for in string
'                   ReturnARRAY (VARIANT)   Any found will be stored here
'
' Outputs:          ParseString (INTEGER)   Number of items in ReturnArray
'                                           starting with zero. If no item
'                                           was found, then returns -1
'
'                   ReturnArray (VARIANT)   Found items from string
'
' Purpose:          ParseString will take a string and seperate it into
'                   user-defined parts.
'                   Example:
'
'                       Dim i as Integer
'                       Dim j as integer
'                       dim Temp as variant
'
'                       i=ParseString("10/24/97","/",Temp)
'
'                       for j=0 to i
'                           msgbox Temp(j)
'                       next j
'
'                   This will display 10 then 24 then 97
'
'
' You are granted royalty free use of this code in your projects.   You may
' remove this comment block in your own projects.   If you intend to redistribute
' this function as part of a library or outside of your own VB project then you
' must leave this block in tact.


Dim X As Long
Dim start As Long
Dim pos As Long
Dim track As Long
ReDim TempHolder(Len(LookIn)) As String


    track = 0
    start = 1
   
    ' Start at the beginning of string and move down until it finds
    ' character it is looking for. Once it finds the character, it
    ' places everything before it and after the last found item into
    ' a new element in an array
   
    Do
        pos = InStr(start, LookIn, Search, vbBinaryCompare)
        If pos > 0 Then
            TempHolder(track) = Mid$(LookIn, start, (pos - start))
            track = track + 1
            start = pos + Len(Search)
        End If
    Loop Until pos = 0
   
    ' Make sure everything has been copied into Temp array
    TempHolder(track) = Mid$(LookIn, start, Len(LookIn))
       
    ReDim tempholder2(track)
   
    ' Move only elements with data in them
    For X = 0 To track
        tempholder2(X) = TempHolder(X)
    Next X
   
    Erase TempHolder
   
    ' Return Array is a variant so it can be passed an array
    ReturnArray = tempholder2
   
    If track = 0 Then
        ' Nothing was found
        ParseString = -1
    Else
        ParseString = track
    End If

End Function

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