method
putback
v2_5_5 -
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Class: Converter
- 1_8_6_287
- 1_8_7_72
- 1_8_7_330
- 1_9_1_378 (0)
- 1_9_2_180 (0)
- 1_9_3_125 (0)
- 1_9_3_392 (0)
- 2_1_10 (0)
- 2_2_9 (0)
- 2_4_6 (0)
- 2_5_5 (0)
- 2_6_3 (-38)
- What's this?
putback(p1 = v1)
public
call-seq
ec.putback -> string ec.putback(max_numbytes) -> string
Put back the bytes which will be converted.
The bytes are caused by invalid_byte_sequence error. When invalid_byte_sequence error, some bytes are discarded and some bytes are buffered to be converted later. The latter bytes can be put back. It can be observed by Encoding::InvalidByteSequenceError#readagain_bytes and Encoding::Converter#primitive_errinfo.
ec = Encoding::Converter.new("utf-16le", "iso-8859-1") src = "\x00\xd8\x61\x00" dst = "" p ec.primitive_convert(src, dst) #=> :invalid_byte_sequence p ec.primitive_errinfo #=> [:invalid_byte_sequence, "UTF-16LE", "UTF-8", "\x00\xD8", "a\x00"] p ec.putback #=> "a\x00" p ec.putback #=> "" # no more bytes to put back