替换双倍双引号

Question

我需要替换双引号，但不能用空值替换字段。

问题：如何替换双引号而不替换空列？

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Original Line

“”COTTAGE“”，“PENNINGTON，NJ”，“”，“123456789”

预期结果

“COTTAGE”，“PENNINGTON，NJ”，“”，“123456789”

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我创建了一个可以解决这个问题的类，但它取代了所有双引号，包括空字段：

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我的代码结果

“COTTAGE”，“PENNINGTON，NJ”，“，”123456789“

你可以看到我的代码修复了COTTAGE，但在NJ之后杀死了空列，只有一个双引号。

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公共类FixFileErrors

Public Shared Sub RemoveDoubleDoubleQuotes(ByVal FilePathandName As String)

    Dim OriginalFile, RevisedFile, LineofText As String

    OriginalFile = FilePathandName
    RevisedFile = Replace(OriginalFile, ".txt", "revised.txt")


    Dim srFileReader As System.IO.StreamReader
    srFileReader = System.IO.File.OpenText(OriginalFile)
    'Dim srFileWritter As System.IO.StreamWriter
    Dim srFileWritter As New System.IO.StreamWriter(RevisedFile)


    Do Until srFileReader.EndOfStream
        LineofText = srFileReader.ReadLine
        LineofText = ReplaceDoubleDoubleQuotes(LineofText)
        srFileWritter.WriteLine(LineofText)
        LineofText = Nothing
    Loop

End Sub

Public Shared Function ReplaceDoubleDoubleQuotes(ByVal Line As String) As String
    Dim NewLine As String


    Dim strFindText As String = Chr(34) & Chr(34)
    Dim strReplaceText As String = Chr(34)

    NewLine = Replace(Line, strFindText, strReplaceText)


    Return NewLine

End Function

     

结束班

Answer 1

Public Shared Function ReplaceDoubleDoubleQuotes(ByVal Line As String) As String
    Dim NewLine As String

    Dim doubleDoubleQuotes As String = Chr(34) & Chr(34)
    Dim doubleQuote As String = Chr(34)

    'Your original replacement
    NewLine = Replace(Line, doubleDoubleQuotes, doubleQuote)

    'Replacement to fix double-quotes between commas
    NewLine = Replace(NewLine, "," & doubleQuote & ",", "," & doubleDoubleQuotes & ",")

    Return NewLine

End Function