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VBA文件处理

程序员文章站 2022-07-08 16:20:43
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Const ForReading = 1, ForWriting = 2, ForAppending = 8

'概要:     フォルダー選択ダイアローグを出して、フォルダを選択
'引数:     無し
'戻り値:   getFilePath 選択されたパス
Function getFilePath() As String
    Dim fd As FileDialog
    Set fd = Application.FileDialog(msoFileDialogFolderPicker)
    With fd
        .Title = "フォルダを開く"
        If .Show = -1 Then
            getFilePath= .SelectedItems(1)
        End If
    End With
End Function

'概要:     指定された行番を読む
'引数:     strRowNo 行番
'戻り値:   readRowNo 指定行目の内容
Function readRowNo(strPath As String, strRowNo As Integer) As String
    Dim FileObj
    Dim FilePath
    Dim strNY As String
    
    Set FileObj = CreateObject("Scripting.FileSystemObject")
    Set File = FileObj.openTextFile(strPath, 1)
    
    For i = 1 To strRowNo
        File.SkipLine
    Next

    readRowNo = File.readLine
     
    File.Close
    Set File = Nothing
    Set FileObj = Nothing
End Function

'概要:     フォルダー中のファイル一覧(全てファイル)を取得(サブフォルダー含む)
'引数:     strInPath パス, arrOutput 戻す配列
'戻り値:   makeFileList「true:ファイル有り, false:ファイル無し」
Function makeFileList(strInPath As String, arrOutput() As String) As Boolean    
    Dim fso As Object
    Dim fd As Object
    
    makeFileList = False
    
    ReDim arrOutput(0)
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set fd = fso.GetFolder(strInPath)
    searchFiles fd, arrOutput
    
    Set fso = Nothing
    Set fd = Nothing
    
    If 0 < UBound(arrOutput, 1) Then
        ReDim Preserve arrOutput(UBound(arrOutput, 1) - 1)
    Else
        Exit Function
    End If
    
    makeFileList = True
    
End Function

'概要:     フォルダー中のファイル一覧(指定拡張子)を取得(サブフォルダー含む)
'引数:     strInPath:パス, strFileType:ファイル類型 ,arrOutput 戻す配列
'戻り値:   makeFileList「true:ファイル有り, false:ファイル無し」
Function makeFileList(strInPath As String, strFileType As String, arrOutput() As String) As Boolean
    
    Dim fso As Object
    Dim fd As Object
    
    makeFileList = False
    
    ReDim arrOutput(0)
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set fd = fso.GetFolder(strInPath)
    searchFiles fd, strFileType, arrOutput
    
    Set fso = Nothing
    Set fd = Nothing
    
    If 0 < UBound(arrOutput, 1) Then
        ReDim Preserve arrOutput(UBound(arrOutput, 1) - 1)
    Else
        Exit Function
    End If
    
    makeFileList = True
    
End Function

'概要:     フォルダー中のファイル一覧(全てファイル)を取得
'引数:     fd フォルダー対象, arrOutput 戻す配列
'戻り値:   searchFiles「true:ファイル有り, false:ファイル無し」
Function searchFiles(fd As Object, arrOutput() As String) As Boolean    
    Dim fl As Object
    Dim sfd As Object 
    searchFiles = False
  
    For Each fl In fd.Files
    	ReDim Preserve arrOutput(UBound(arrOutput, 1) + 1)
        arrOutput(UBound(arrOutput, 1) - 1) = fl.Path
    Next fl
    
    If fd.SubFolders.Count = 0 Then
        Exit Function
    End If
    
    For Each sfd In fd.SubFolders
        searchFiles sfd, strFileType, arrOutput
    Next
    
    Set sfd = Nothing    
    searchFiles = True  
End Function

'概要:     フォルダー中のファイル一覧(指定拡張子)を取得
'引数:     fd フォルダー対象, strFileType:ファイル類型, arrOutput 戻す配列
'戻り値:   searchFiles「true:ファイル有り, false:ファイル無し」
Function searchFiles(fd As Object, strFileType As String, arrOutput() As String) As Boolean
    
    Dim fl As Object
    Dim sfd As Object
    Dim sTmp As String
    
    sTmp = ""
  
    searchFiles = False
  
    sTmp = Split(strFileType, ".")(1)
    sTmp = "." & sTmp
    For Each fl In fd.Files
        If UCase(Right(fl.Path, Len(sTmp))) = UCase(sTmp) Then
            ReDim Preserve arrOutput(UBound(arrOutput, 1) + 1)
            arrOutput(UBound(arrOutput, 1) - 1) = fl.Path
        End If
    Next fl
    
    If fd.SubFolders.Count = 0 Then
        Exit Function
    End If
    
    For Each sfd In fd.SubFolders
        searchFiles sfd, strFileType, arrOutput
    Next
    
    Set sfd = Nothing
    
    searchFiles = True
  
End Function

'概要:     ファイル内容を取得
'引数:     strFileName ファイル名, arrContent ファイル正文配列
'戻り値:   readFile「true:正常, false:異常」
Function readFile(strFileName As String, arrContent As Variant) As Boolean

    Dim fso As Object
    Dim sFile As Object

    readFile = False
    
    If isFileExists(strFileName) Then
        'NULL
    Else
        Exit Function
    End If
    
    ReDim arrContent(0)
    
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set sFile = fso.openTextFile(strFileName, 1)

    Do While Not sFile.AtEndOfStream
        ReDim Preserve arrContent(UBound(arrContent, 1) + 1)
        arrContent(UBound(arrContent, 1) - 1) = sFile.readLine
    Loop
    
    sFile.Close

    Set fso = Nothing
    Set sFile = Nothing
    
    If 0 < UBound(arrContent, 1) Then
        ReDim Preserve arrContent(UBound(arrContent, 1) - 1)
    Else
        Exit Function
    End If

    readFile = True    
End Function

'概要:     ファイル存在を判定
'引数:     strFileName ファイル名
'戻り値:   isFileExists「true:存在, false:存在しない」
Function isFileExists(strFileName As String) As Boolean   
 
    Dim fs As Object 
    Set fs = CreateObject("Scripting.FileSystemObject")

    If fs.FileExists(strFileName) Then
        isFileExists = True
    Else
        isFileExists = False
    End If    

    Set fs = Nothing

End Function

'概要:     ファイルに内容を記入
'引数:     strFileName:ファイル名, arrContent:記入したい内容, intIoMode:処理モード, booCreate:ファイル存在無し「true:作成, false:作成しない」
'戻り値:   無し
Function writeFile(strFileName As String, arrContent() As String, _
                   ByVal intIoMode As integer, ByVal booCreate As Boolean) As Boolean

    Dim fso As Object
    Dim sFile As Object
    Dim i As Long
    
    i = 0

    writeFile = False
    
    Set fso = CreateObject("Scripting.FileSystemObject")
    Select Case intIoMode 
        Case 8	'追加
            Set sFile = fso.openTextFile(strFileName, 8, booCreate)
        Case 1	'読む
            Set sFile = fso.openTextFile(strFileName, 1, booCreate)
        Case 2	'書く
            Set sFile = fso.openTextFile(strFileName, 2, booCreate)
    End Select
    
    For i = 0 To UBound(arrContent, 1)
        sFile.writeLine (arrContent(i))
    Next i
    
    sFile.Close

    Set fso = Nothing
    Set sFile = Nothing

    writeFile = True
    
End Function

'概要:     ログタイトルを記入
'引数:     strOutFile 目標ファイル名
'戻り値:   無し
Function writeLogHeader(strOutFile As String)

    Dim cOutput() As String
    
    ReDim cOutput(0)

    'タイトルを指定
    cOutput(0) = """" & "No." & """" & vbTab
    cOutput(0) = cOutput(0) & """" & "Source File" & """" & vbTab
    cOutput(0) = cOutput(0) & """" & "Row Number" & """" & vbTab
    cOutput(0) = cOutput(0) & """" & "Row Infor" & """"

    Call writeFile(strOutFile, cOutput, ForAppending, True)
    
End Function

'概要:     ログ正文を記入
'引数:     strOutFile:ファイル名, lNum:順番, strSrcFile:ソースファイル, lngRownum:行番, strRowContent:行正文
'戻り値:   無し
Function writeLog(strOutFile As String, lNum As Long, strSrcFile As String, lngRownum As Long, strRowContent As String)

    Dim cOutput() As String
    
    ReDim cOutput(0)
    cOutput(0) = Chr(34) & lNum & Chr(34) & vbTab
    cOutput(0) = cOutput(0) & Chr(34) & strSrcFile & Chr(34) & vbTab
    cOutput(0) = cOutput(0) & Chr(34) & lngRownum & Chr(34) & vbTab
    'cOutput(0) = cOutput(0) & Chr(34) & strRowContent & Chr(34)
    cOutput(0) = cOutput(0) & strRowContent
    Call writeFile(strOutFile, cOutput, ForAppending, True)
    
End Function

'概要:     指定パスのファイルを消す
'引数:     strFilePath:目標パス
'戻り値:   true:操作成功, false:操作失敗
Function deleteAllFiles(ByVal strFilePath As String) As Boolean    
    Dim arrOutput() As String
    Call makeFileList(strFilePath, arrOutput)    
    For i = 0 To UBound(arrOutput)
        If isFileExists(arrOutput(i)) Then        
            Kill arrOutput(i)            
        End If
    Next i    
    deleteAllFiles = True
End Function

 

相关标签: vba 文件处理