As a quick side-note, this is a perfect time for C# extension methods:
instead of
private static string ReadToDelimiter(StreamReader streamReader, char
delimiter) {}
you could do
public static string ReadToDelimiter(this StreamReader streamReader,
char delimiter) {}
then call it as:
reader.ReadToDelimiter('@');
instead of
ReadToDelimiter(reader, '@');
On Dec 9, 9:40 am, Joe Enos <[EMAIL PROTECTED]> wrote:
> Using String.Split will work fine as long as your line isn't that
> long. If you've got a huge textfile with a single line, but dozens or
> hundreds of megabytes worth of data, using that method will get you in
> trouble.
>
> I'd go with something like the following - clean it up and modify it
> as appropriate for your needs, including necessary error handling,
> etc...
>
> private static string ReadToDelimiter(StreamReader streamReader, char
> delimiter)
> {
> StringBuilder result = null;
> char c = (char)streamReader.Read();
> while ((!streamReader.EndOfStream) && (c != delimiter))
> {
> if (result == null)
> {
> result = new StringBuilder();
> }
> result.Append(c);
> c = (char)streamReader.Read();
> }
> return (result != null) ? result.ToString() : null;
>
> }
>
> To call your code, you can do something like:
> StreamReader reader = new StreamReader(@"C:\myfile.txt");
> string textLine = ReadToDelimiter(reader, '@');
> while (textLine != null)
> {
> Console.WriteLine(textLine);
> textLine = ReadToDelimiter(reader, '@');
>
> }
>
> On Dec 9, 8:24 am, "Kaarthik Padmanabhan" <[EMAIL PROTECTED]>
> wrote:
>
> > aah..forgot to replace the path param passed in:
> > Initialize the StreamReader as follows:
> > sr = New System.IO.StreamReader(path) instead of the hard-coded dummy path
> > used.
>
> > On Tue, Dec 9, 2008 at 8:51 PM, Kaarthik Padmanabhan
> > <[EMAIL PROTECTED]>wrote:
>
> > > Hi,
> > > See if this helps:
>
> > > Private Function GetDelimitedString(ByVal path As String) As List(Of
> > > String)
> > > Dim sr As System.IO.StreamReader
> > > Dim contentStr As String = String.Empty
> > > Dim delimitedStringList As New List(Of String)
>
> > > sr = New System.IO.StreamReader("C:\DelimitedTextFile.txt")
> > > sr.ReadLine()
> > > contentStr = sr.ReadToEnd()
>
> > > If Not String.IsNullOrEmpty(contentStr) Then
> > > For Each delimitedStr As String In contentStr.Split("@")
> > > delimitedStringList.Add(delimitedStr)
> > > Next
> > > End If
>
> > > Return delimitedStringList
> > > End Function
>
> > > Regards,
> > > Kaarthik
>
> > > On Tue, Dec 9, 2008 at 3:27 PM, Clyde <[EMAIL PROTECTED]> wrote:
>
> > >> Hello,
> > >> I have a txt file whose lines are separated by a delimiter "@".
> > >> How can I read the file line by line using "streamreader"?
> > >> Plz reply asap.
> > >> Thanx,
> > >> Clyde
>
> > > --
> > > Kaarthik,
> > >http://coding-passion.blogspot.com
>
> > --
> > Kaarthik,http://coding-passion.blogspot.com
>
>
