public StopEncoderFallbackBuffer(StopEncoderFallback fallback)
{
this.result = fallback.result ?? new EncoderResult();
}
public static PhpString iconv(Context ctx, string in_charset, string out_charset, PhpString str)
{
// check args
if (str.IsDefault)
{
PhpException.ArgumentNull("str");
return(default(PhpString));
}
if (out_charset == null)
{
PhpException.ArgumentNull("out_charset");
return(default(PhpString));
}
// resolve out_charset
bool transliterate, discard_ilseq;
out_charset = ParseOutputEncoding(out_charset, out transliterate, out discard_ilseq);
var out_encoding = ResolveEncoding(ctx, out_charset);
if (out_encoding == null)
{
PhpException.Throw(PhpError.Notice, Resources.LibResources.wrong_charset, out_charset, in_charset, out_charset);
return(default(PhpString));
}
// encoding fallback
EncoderFallback enc_fallback;
var out_result = new EncoderResult();
if (transliterate)
{
enc_fallback = new TranslitEncoderFallback(); // transliterate unknown characters
}
else if (discard_ilseq)
{
enc_fallback = new IgnoreEncoderFallback(); // ignore character and continue
}
else
{
enc_fallback = new StopEncoderFallback(out_result); // throw notice and discard all remaining characters
}
//// out_encoding.Clone() ensures it is NOT readOnly
//// then set EncoderFallback to catch handle unconvertable characters
//out_encoding = (Encoding)out_encoding.Clone();
out_encoding = Encoding.GetEncoding(out_encoding.CodePage, enc_fallback, DecoderFallback.ExceptionFallback);
try
{
//
if (str.ContainsBinaryData)
{
// resolve in_charset
if (in_charset == null)
{
PhpException.ArgumentNull("in_charset");
return(default(PhpString));
}
var in_encoding = ResolveEncoding(ctx, in_charset);
if (in_encoding == null)
{
PhpException.Throw(PhpError.Notice, Resources.LibResources.wrong_charset, in_charset, in_charset, out_charset);
return(default(PhpString));
}
// TODO: in_encoding.Clone() ensures it is NOT readOnly, then set DecoderFallback to catch invalid byte sequences
// convert <in_charset> to <out_charset>
return(new PhpString(out_encoding.GetBytes(str.ToString(in_encoding))));
}
else
{
// convert UTF16 to <out_charset>
return(new PhpString(str.ToBytes(out_encoding)));
}
}
finally
{
if (out_result.firstFallbackCharIndex >= 0)
{
// Notice: iconv(): Detected an illegal character in input string
PhpException.Throw(Core.PhpError.Notice, Resources.LibResources.illegal_character);
}
}
}
