Encoding for "μ" does not seem to work about htmlentities

[threedaymonk]

I need more information than this. Can you write some code to reproduce the problem?

[MariusDanner]

coder = HTMLEntities.new
coder.decode(coder.encode("µ"))
=> "Ã\u0082µ"

I tried this with
coder = HTMLEntities.new(:expanded)
and with several decoding options

[threedaymonk]

I can't reproduce your result. Tell me more about your environment: operating system, version of Ruby, shell encoding, etc.

[MariusDanner]

Ruby:
ruby 2.1.1p76 (2014-02-24 revision 45161) [i686-linux]
Rails:
Rails 3.2.22.5
OS:
vagrant@precise32:/vagrant$ cat /proc/version
Linux version 3.2.0-23-generic-pae (buildd@palmer) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu4) ) #36-Ubuntu SMP Tue Apr 10 22:19:09 UTC
vagrant@precise32:/vagrant$ cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

character encoding:
vagrant@precise32:/vagrant$ locale charmap
+ISO-8859-1

Lang:
en_US

[threedaymonk]

Ah. You'll need to be in UTF-8 encoding, not ISO-8859-1.

HTMLEntities works with UTF-8 (or ASCII) strings only.

[MariusDanner]

Thank you very much.