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POEncoding-free String class for handling bytes? (Or alternative approach)
 

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  1. POEncoding-free String class for handling bytes? (Or alternative approach)
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    <p>I have an application converted from Python 2 (where strings are essentially lists of bytes) and I'm using a string as a convenient byte buffer.</p> <p>I am rewriting some of this code in the Boo language (Python-like syntax, runs on .NET) and am finding that the strings have an intrinsic encoding type, such as ASCII, UTF-8, etc. Most of the information dealing with bytes refer to arrays of bytes, which are (apparently) fixed length, making them quite awkward to work with.</p> <p>I can obviously get bytes from a string, but at the risk of expanding some characters into multiple bytes, or discarding/altering bytes above 127, etc. This is fine and I fully understand the reasons for this - but what would be handy for me is either (a) an encoding that guarantees no conversion or discarding of characters so that I can use a string as a convenient byte buffer, or (b) some sort of ByteString class that gives the convenience of the string class. (Ideally the latter as it seems less of a hack.) Do either of these already exist? (Or are trivial to implement?)</p> <p>I am aware of System.IO.MemoryStream, but the prospect of creating one of those each time and then having to make a System.IO.StreamReader at the end just to get access to ReadToEnd() doesn't seem very efficient, and this is in performance-sensitive code.</p> <p>(I hope nobody minds that I tagged this as C# as I felt the answers would likely apply there also, and that C# users might have a good idea of the possible solutions.)</p> <p>EDIT: I've also just discovered System.Text.StringBuilder - again, is there such a thing for bytes?</p>
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    1. COyou can use GetBuffer() on a memory stream to get it as a byte array directly, without having to read it. is that what you were looking for?
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    2. COIt's certainly better than the StreamReader approach! But I'd still prefer not to create MemoryStreams, plus GetBuffer isn't so great if there are unfilled bytes in the buffer, etc.
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    3. COin .net, strings are built up from **char**, which are actually two bytes. they don't have an intrinsic encoding type, they're always utf-16. so it will be tricky to use them as a byte buffer.
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