ISO-8859-2 , GB-18030 and ISO-2022

[Aoi-hosizora]

1. newRecognizer_8859_2_xx function should return newRecognizer_8859_2(xx) which uses ISO-8859-2 rather than newRecognizer_8859_1(xx) which uses ISO-8859-1.

chardet/single_byte.go

Lines 325 to 336 in 3af4cd4

	func newRecognizer_8859_2_cs() *recognizerSingleByte {
	return newRecognizer_8859_1("cs", &ngrams_8859_2_cs)
	}
	func newRecognizer_8859_2_hu() *recognizerSingleByte {
	return newRecognizer_8859_1("hu", &ngrams_8859_2_hu)
	}
	func newRecognizer_8859_2_pl() *recognizerSingleByte {
	return newRecognizer_8859_1("pl", &ngrams_8859_2_pl)
	}
	func newRecognizer_8859_2_ro() *recognizerSingleByte {
	return newRecognizer_8859_1("ro", &ngrams_8859_2_ro)
	}

2. As charset "GB-18030" need to change "GB18030" #2 and The correct iana name for GB18030 is without the dash #3 says, GB18030 should be GB18030.

chardet/multi_byte.go

Line 340 in 3af4cd4

"GB-18030",

3. ISO-2022-XX charsets language should be ja, ko and cn

chardet/2022.go

Lines 83 to 101 in 3af4cd4

	func newRecognizer_2022JP() *recognizer2022 {
	return &recognizer2022{
	"ISO-2022-JP",
	escapeSequences_2022JP,
	}
	}
	func newRecognizer_2022KR() *recognizer2022 {
	return &recognizer2022{
	"ISO-2022-KR",
	escapeSequences_2022KR,
	}
	}
	func newRecognizer_2022CN() *recognizer2022 {
	return &recognizer2022{
	"ISO-2022-CN",
	escapeSequences_2022CN,
	}