From: Yukihiro Matsumoto <matz@...>
Date: 2008-12-15T23:51:15+09:00
Subject: [ruby-core:20574] Re: 1.9 character encoding (was: encoding of symbols)

Hi,

In message "Re: [ruby-core:20567] Re: 1.9 character encoding (was: encoding of symbols)"
    on Mon, 15 Dec 2008 20:32:48 +0900, Brian Candler <B.Candler@pobox.com> writes:

|Sorry, that wasn't a good example. Using #read instead:
|
|irb(main):001:0> File.open("/bin/sh").read(16).encoding
|=> #<Encoding:ASCII-8BIT>
|irb(main):002:0> File.open("/etc/passwd").read(16).encoding
|=> #<Encoding:ASCII-8BIT>
|irb(main):003:0> File.open("/bin/sh").gets.encoding
|=> #<Encoding:UTF-8>
|irb(main):004:0> File.open("/etc/passwd").gets.encoding
|=> #<Encoding:UTF-8>
|
|So I guess: the encoding declared in open is used for #gets, but #read
|always returns ASCII-8BIT.

Yes, read specifies data length in bytes, so its return value should
be binary (ASCII-8BIT).

|I see also that inline literals have variable encoding:
|
|irb(main):029:0> "\x61\x62\x63".encoding
|=> #<Encoding:US-ASCII>
|irb(main):028:0> "\x61\xc3\x9f".encoding
|=> #<Encoding:ASCII-8BIT>

This is old behavior.  Now string literals are always in their source
encoding.  Try newer version.

							matz.