Exception: Encoding::InvalidByteSequenceError

Inherits:
EncodingError show all
Defined in:
transcode.c

Overview

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

Instance Method Summary collapse

Methods inherited from Exception

#==, #backtrace, #exception, exception, #initialize, #inspect, #message, #set_backtrace, #to_s

Constructor Details

This class inherits a constructor from Exception

Instance Method Details

#destination_encoding ⇒ String

Returns the destination encoding as an encoding object.

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.destination_encoding         -> string
 *
 * Returns the destination encoding as an encoding object.
 */
static VALUE
ecerr_destination_encoding(VALUE self)
{
    return rb_attr_get(self, rb_intern("destination_encoding"));
}

#destination_encoding_name ⇒ String

Returns the destination encoding name as a string.

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.destination_encoding_name         -> string
 *
 * Returns the destination encoding name as a string.
 */
static VALUE
ecerr_destination_encoding_name(VALUE self)
{
    return rb_attr_get(self, rb_intern("destination_encoding_name"));
}

#error_bytes ⇒ String

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

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.error_bytes         -> string
 *
 * 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
 */
static VALUE
ecerr_error_bytes(VALUE self)
{
    return rb_attr_get(self, rb_intern("error_bytes"));
}

#incomplete_input? ⇒ Boolean

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

Returns:

  • (Boolean) 



# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.incomplete_input?         -> true or false
 *
 * 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
 */
static VALUE
ecerr_incomplete_input(VALUE self)
{
    return rb_attr_get(self, rb_intern("incomplete_input"));
}

#readagain_bytes ⇒ String

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

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.readagain_bytes         -> string
 *
 * Returns the bytes to be read again when Encoding::InvalidByteSequenceError occurs.
 */
static VALUE
ecerr_readagain_bytes(VALUE self)
{
    return rb_attr_get(self, rb_intern("readagain_bytes"));
}

#source_encoding ⇒ 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

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.source_encoding              -> 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
 *
 */
static VALUE
ecerr_source_encoding(VALUE self)
{
    return rb_attr_get(self, rb_intern("source_encoding"));
}

#source_encoding_name ⇒ String

Returns the source encoding name as a string.

Returns:




# File 'transcode.c'

/*
 * call-seq:
 *   ecerr.source_encoding_name         -> string
 *
 * Returns the source encoding name as a string.
 */
static VALUE
ecerr_source_encoding_name(VALUE self)
{
    return rb_attr_get(self, rb_intern("source_encoding_name"));
}