Le 13/09/2013 23:03, Simon Sapin a écrit :
/// Takes the invalid byte sequence.
/// Return a replacement string, or None to abort with a DecodeError.
condition! {
pub decoding_error : ~[u8] -> Option<~str>;
}
/// Functions to be used with decoding_error::cond.trap
mod decoding_error_handlers {
fn fatal(_: ~[u8]) -> Option<~str> { None }
fn replacement(_: ~[u8]) -> Option<~str> { Some(~"\uFFFD") }
}
Allocating ~"\uFFFD" repeatedly is, let’s say, unfortunate. This could
be avoided by having the return value be:
enum DecodingErrorResult {
AbortDecoding,
ReplacementString(~str),
ReplacementChar(char),
}
Similarly, for encoding:
enum EncodingErrorResult {
AbortDecoding,
ReplacamentByteSequence(~[u8]),
ReplacementByte(u8),
}
--
Simon Sapin
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