class Encoding::InvalidByteSequenceError - Documentation for Ruby 4.0
Description: class Encoding::InvalidByteSequenceError: Raised by Encoding and String methods when the string being transcoded contains a byte invalid for the either the source or target encoding.
Keywords: ruby,class,Encoding::InvalidByteSequenceError

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# class Encoding::InvalidByteSequenceError

Raised by `Encoding` and `String` methods when the string being transcoded contains a byte invalid for the either the source or target encoding.

### Public Instance Methods

destination_encoding → string
Source

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

Returns the destination encoding as an encoding object.

destination_encoding_name → string
Source

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

Returns the destination encoding name as a string.

error_bytes → string
Source

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

Returns the discarded bytes when `Encoding::InvalidByteSequenceError` occurs.

    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
Source

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

Returns true if the invalid byte sequence error is caused by premature end of string.

    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
Source

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

Returns the bytes to be read again when `Encoding::InvalidByteSequenceError` occurs.

source_encoding → encoding
Source

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

Returns the source encoding as an encoding object.

Note that the result may not be equal to the source encoding of the encoding converter if the conversion has multiple steps.

    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);
    }

Returns the source encoding name as a string.