class Encoding::InvalidByteSequenceError - Ruby 4.0 文档

Source

static VALUE
ecerr_destination_encoding(VALUE self)
{
    return rb_attr_get(self, id_destination_encoding);
}

返回目标编码作为编码对象。

destination_encoding_name → string

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static VALUE
ecerr_destination_encoding_name(VALUE self)
{
    return rb_attr_get(self, id_destination_encoding_name);
}

返回目标编码名称作为字符串。

error_bytes → string

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static VALUE
ecerr_error_bytes(VALUE self)
{
    return rb_attr_get(self, id_error_bytes);
}

在发生 Encoding::InvalidByteSequenceError 时返回被丢弃的字节。

ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1")
begin
  ec.convert("abc\xA1\xFFdef")
rescue Encoding::InvalidByteSequenceError
  p $!      #=> #<Encoding::InvalidByteSequenceError: "\xA1" followed by "\xFF" on EUC-JP>
  puts $!.error_bytes.dump          #=> "\xA1"
  puts $!.readagain_bytes.dump      #=> "\xFF"
end

incomplete_input? → true or false

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static VALUE
ecerr_incomplete_input(VALUE self)
{
    return rb_attr_get(self, id_incomplete_input);
}

如果无效字节序列错误是由字符串过早结束引起的，则返回 true。

ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1")

begin
  ec.convert("abc\xA1z")
rescue Encoding::InvalidByteSequenceError
  p $!      #=> #<Encoding::InvalidByteSequenceError: "\xA1" followed by "z" on EUC-JP>
  p $!.incomplete_input?    #=> false
end

begin
  ec.convert("abc\xA1")
  ec.finish
rescue Encoding::InvalidByteSequenceError
  p $!      #=> #<Encoding::InvalidByteSequenceError: incomplete "\xA1" on EUC-JP>
  p $!.incomplete_input?    #=> true
end

readagain_bytes → string

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static VALUE
ecerr_readagain_bytes(VALUE self)
{
    return rb_attr_get(self, id_readagain_bytes);
}

在发生 Encoding::InvalidByteSequenceError 时返回需要重新读取的字节。

source_encoding → encoding

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static VALUE
ecerr_source_encoding(VALUE self)
{
    return rb_attr_get(self, id_source_encoding);
}

返回源编码作为编码对象。

注意，如果转码有多步，结果可能不等于编码转换器的源编码。

ec = Encoding::Converter.new("ISO-8859-1", "EUC-JP") # ISO-8859-1 -> UTF-8 -> EUC-JP
begin
  ec.convert("\xa0") # NO-BREAK SPACE, which is available in UTF-8 but not in EUC-JP.
rescue Encoding::UndefinedConversionError
  p $!.source_encoding              #=> #<Encoding:UTF-8>
  p $!.destination_encoding         #=> #<Encoding:EUC-JP>
  p $!.source_encoding_name         #=> "UTF-8"
  p $!.destination_encoding_name    #=> "EUC-JP"
end

source_encoding_name → string

Source

static VALUE
ecerr_source_encoding_name(VALUE self)
{
    return rb_attr_get(self, id_source_encoding_name);
}

返回源编码名称作为字符串。