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**Category:** Ruby\
**Created:** [March 23, 2006, 9:09am UTC](https://www.ruby-forum.com/t/nkf-guess1-and-guess2-on-html-files/85842 "2006-03-23T09:09:01Z")\
**Posts on this page:** 3\
**Page:** 1
**Author:**  [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 23, 2006, 9:09am UTC](https://www.ruby-forum.com/t/nkf-guess1-and-guess2-on-html-files/85842/1 "2006-03-23T09:09:01Z")
may be i’m not using correctly nkf #guess1 but it gaves me return type 3
(suuposed to be UTF-8) for ISO-8859-1 encoded files.
it gaves me also 3 for UTF-8 encoded files ???
my code is simply :
NKF.guess1(string)
with string=
also sometimes guess1 disaggreed with guess2 ???
whare could i find a table giving the encoding versus returned values
???
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**Author:**  [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 23, 2006, 12:16pm UTC](https://www.ruby-forum.com/t/nkf-guess1-and-guess2-on-html-files/85842/2 "2006-03-23T12:16:11Z")
In Message-Id: [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)
removed\_email\_address@domain.invalid (Une be.AeNivue) writes:
> may be i’m not using correctly nkf #guess1 but it gaves me return type 3
> (suuposed to be UTF-8) for ISO-8859-1 encoded files.
>
> it gaves me also 3 for UTF-8 encoded files ???
Unfortunately NKF is just for Japanese tool, so you can’t use it for
general code conversion / guessing, I think.
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**Author:**  [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 23, 2006, 12:53pm UTC](https://www.ruby-forum.com/t/nkf-guess1-and-guess2-on-html-files/85842/3 "2006-03-23T12:53:57Z")
YANAGAWA Kazuhisa [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:
> Unfortunately NKF is just for Japanese tool, so you can’t use it for
> general code conversion / guessing, I think.
ok, fine, i need just a tool in order to discriminate between ISO-8859-1
and UTF-8 (as a first step) without using the meta content-type charset
in the html file, which isn’t reliable, for example a Ruby Cocoa site
([http://www.rubycocoa.com/the-rubification-of-rtw](http://www.rubycocoa.com/the-rubification-of-rtw)) says it’s
ISO-8859-1 encoding (in the meta tag) but it is in fact UTF-8 (said by
Firefox and text editor and also http headers…)