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ruby--ruby/NEWS
knu cb4d196df1 * object.c (rb_obj_singleton_class): new method 
Kernel#singleton_class.  [ruby-core:21702]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@27049 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-03-25 18:09:57 +00:00

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= NEWS
This document is a list of user visible feature changes made between
releases except for bug fixes.
Note that each entry is kept so brief that no reason behind or
reference information is supplied with. For a full list of changes
with all sufficient information, see the ChangeLog file.
== Changes since the 1.8.7 release
=== Lexical changes
* empty symbol literal
Empty symbol (:"") is allowed.
* looser splat opetator
You can write things like:
x, *y, z = a, *b, c
def foo(a, b=1, *c, d); end
But when you evaluate them, you will get exceptions.
* new hash immediates
Ruby 1.9 style hash syntax e.g. { key: value } is now also supported
in 1.8. You can also write a method invocation syntax foo bar: baz.
=== Configuration changes
* version specific directories
A new configure option --with-ruby-version is added, which allows
user to specify the version string (defaulted to "1.8") for version
specific directories such as library directories, ri directories and
gem directories.
=== Library updates (outstanding ones only)
* global functions
* Return an enumerator if no block is given.
* builtin classes
* Array#try_convert()
* Hash#try_convert()
* IO#try_convert()
* Regexp#try_convert()
* String#try_convert()
New methods.
* Array#sample
New method with which replaces #choice.
* Enumerable#each_with_object
* Enumerator#with_object
New methods.
* Enumerator.new { |y| ... }
Now can generate an enumerator from a block that defines
enumeration instead of an enumerable object.
* Enumerator#rewind
Now calls the "rewind" method of the enclosed object if defined.
* Enumerator#inspect
Implemented.
* Hash#default_proc=
New method.
* Hash#key
Renamed from Hash#index.
* Kernel#singleton_class
New method.
* ENV.key
Renamed from ENV.index.
* IO#ungetbyte
Added as an alias to #ungetc.
* Proc#===
New method primarily for use in the case-when construct.
* Range#cover?
New alias to #include? for the forward compatibility with 1.9, in
which the behavior of Range#include? has changed.
* Regexp
The regular expression /\s/ now properly matches a vertical tab
character (VT: "\v") and /\S/ does not. It was a bug that /\s/
did not match VT when /[\s]/ does. It is clear that VT should
always be regarded as white space, not to mention String#strip.
* String#getbyte
* String#setbyte
* String#ord
New methods for the forward compatibility with 1.9, in which the
behavior of String#[] and String#[]= have changed. String#ord is
$KCODE aware.
* Symbol#succ
* Symbol#next
* Symbol#<=>
* Symbol#casecmp
* Symbol#=~
* Symbol#[]
* Symbol#slice
* Symbol#length
* Symbol#size
* Symbol#empty?
* Symbol#match
* Symbol#upcase
* Symbol#downcase
* Symbol#capitalize
* Symbol#swapcase
New methods.
* base64
* Base64#strict_encode64
* Base64#strict_decode64
* Base64#urlsafe_encode64
* Base64#urlsafe_decode64
New methods.
* dbm
DBM#key
Renamed from DBM#index.
* gdbm
GDBM#key
Renamed from GDBM#index.
* open-uri
* Added a lot of new options:
* :ftp_active_mode => bool
Specify false to enable FTP passive mode. It is adviced that
this option should be explicitly set for forward compatibility
because the default mode is changed in Ruby >= 1.9.
* :read_timeout => seconds
* :proxy_http_basic_authentication => [uri, user, password]
* :redirect => bool
* :ssl_verify_mode => OpenSSL::SSL::VERIFY_*
* :ssl_ca_cert => filename
* rational
* Performace improved by making overall code optimization and
introducing Fixnum#gcd implemented in C.
* sdbm
SDBM#key
Renamed from SDBM#index.
* securerandom
SecureRandom.uuid
New method to generate a v4 random UUID.
* set
Set#classify
Set#collect!
Set#delete_if
Set#delete_if
Set#divide
Set#reject!
Return an enumerator if no block is given.
* stringio
* StringIO#ungetbyte
Added as an alias to #ungetc.
* digest
* new methods:
* Digest::Class.base64digest
* Digest::Instance#base64digest
* Digest::Instance#base64digest!
* rss
* 0.2.4 -> 0.2.7.
* RSS::Maker.make
* raise an exception not returns nil for invalid feed making.
* requires block.
* RSS::Maker.[]
* new method to return maker class.
* RSS::Maker.supported?(version)
* new method to check whether given version is supported.
* RSS::Maker: item.guid.permanent_link?
* new alias of item.guid.isPermaLink
* RSS::Maker: item.guid.permanent_link=
* new alias of item.guid.isPermaLink=
* REXML
* REXML::Document.entity_expansion_limit=
New method to set the entity expansion limit. By default the limit is
set to 10000. See the following URL for details.
http://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml/
* logger
* imported upstream version (logger/1.2.7)
* do not raise an exception even if log writing failed.
* do not raise ShiftingError if an aged file already exists.
(no ShiftingError will be raised from 1.2.7, just warn() instead)
=== Compatibility issues (excluding feature bug fixes)
* builtin classes
* Enumerator#rewind
See above.
* open-uri
* URI::InvalidURIError is converted to OpenURI::HTTPError if an
invalid HTTP URI is given.
== Changes since the 1.8.6 release
=== Configuration changes
* default C flags
Some C compiler flags may be added by default depending on your
environment. Specify optflags=.. and warnflags=.. as necessary to
override them.
* vendor_ruby directory
A new library directory named `vendor_ruby' is introduced in
addition to `site_ruby'. The idea is to separate libraries
installed by the package system (`vendor') from manually (`site')
installed libraries preventing the former from getting overwritten
by the latter, while preserving the user option to override vendor
libraries with site libraries. (`site_ruby' takes precedence over
`vendor_ruby')
If you are a package maintainer, make each library package configure
the library passing the `--vendor' option to `extconf.rb' so that
the library files will get installed under `vendor_ruby'.
You can change the directory locations using configure options such
as `--with-sitedir=DIR' and `--with-vendordir=DIR'.
=== Global constants
* new constants
* RUBY_COPYRIGHT
* RUBY_DESCRIPTION
=== Library updates (outstanding ones only)
* new library
* securerandom
* builtin classes
* Array#flatten
* Array#flatten!
Take an optional argument that determines the level of recursion
to flatten.
* Array#eql?
* Array#hash
* Array#==
* Array#<=>
Handle recursive data properly.
* Array#index
* Array#rindex
Use a given block if no argument is given.
* Array#collect!
* Array#map!
* Array#each
* Array#each_index
* Array#reverse_each
* Array#reject
* Array#reject!
* Array#delete_if
Return an enumerator if no block is given.
Note that #map and #collect still return an array unlike Ruby 1.9
to keep compatibility.
* Array#pop
* Array#shift
Take an optional argument specifying the number of elements to
remove.
* Array#choice
* Array#combination
* Array#cycle
* Array#drop
* Array#drop_while
* Array#permutation
* Array#product
* Array#shuffle
* Array#shuffle!
* Array#take,
* Array#take_while
New methods.
* Binding#eval
New method.
* Dir#each
* Dir#foreach
Return an enumerator if no block is given.
* Enumerable::Enumerator
New class for various enumeration defined by the enumerator library.
* Enumerable#each_slice
* Enumerable#each_cons
* Object#to_enum
* Object#enum_for
New methods for various enumeration defined by the enumerator library.
* Enumerable#count
* Enumerable#cycle
* Enumerable#drop
* Enumerable#drop_while
* Enumerable#find_index
* Enumerable#first
* Enumerable#group_by
* Enumerable#max_by
* Enumerable#min_by
* Enumerable#minmax
* Enumerable#minmax_by
* Enumerable#none?
* Enumerable#one?
* Enumerable#take
* Enumerable#take_while
New methods.
* Enumerable#find
* Enumerable#find_all
* Enumerable#partition
* Enumerable#reject
* Enumerable#select
* Enumerable#sort_by
Return an enumerator if no block is given.
Note that #map and #collect still return an array unlike Ruby 1.9
to keep compatibility.
* Enumerable#inject
Accepts a binary operator instead of a block.
* Enumerable#reduce
New alias to #inject.
* Hash#eql?
* Hash#hash
* Hash#==
Handle recursive data properly.
* Hash#delete_if
* Hash#each
* Hash#each_key
* Hash#each_pair
* Hash#each_value
* Hash#reject!
* Hash#select
* ENV.delete_if
* ENV.each
* ENV.each_key
* ENV.each_pair
* ENV.each_value
* ENV.reject!
* ENV.select
Return an enumerator if no block is given.
* GC.stress
* GC.stress=
New methods.
* Integer#ord
* Integer#odd?
* Integer#even?
* Integer#pred
New methods.
* Integer#downto
* Integer#times
* Integer#upto
Return an enumerator if no block is given.
* IO#each
* IO#each_line
* IO#each_byte
* IO.foreach
* ARGF.each
* ARGF.each_line
* ARGF.each_byte
Return an enumerator if no block is given.
* IO#bytes
* IO#chars
* IO#each_char
* IO#getbyte
* IO#lines
* IO#readbyte
* ARGF.bytes
* ARGF.chars
* ARGF.each_char
* ARGF.getbyte
* ARGF.lines
* ARGF.readbyte
New methods.
* Method#name
* Method#owner
* Method#receiver
* UnboundMethod#name
* UnboundMethod#owner
New methods.
* Module#class_exec
* Module#module_exec
New methods.
* Numeric#step
Return an enumerator if no block is given.
* Object#instance_exec
* Object#tap
New methods.
* ObjectSpace.each_object
Return an enumerator if no block is given.
* Process.exec implemented.
* Range#each
* Range#step
Return an enumerator if no block is given.
* Regexp.union accepts an array of patterns.
* String#bytesize
New method, returning the size in bytes. (alias length and size)
* String#chars
* String#each_char
* String#partition
* String#rpartition
* String#start_with?
* String#end_with?
New methods. These are $KCODE aware unlike #index, #rindex and
#include?.
* String#each_byte
* String#each
* String#each_line
* String#gsub(pattern)
Return an enumerator if no block is given.
* String#upto
An optional second argument is added to specify if the last value
should be included.
* StopIteration
New exception class that causes Kernel#loop to stop iteration when
raised.
* Struct#each
* Struct#each_pair
Return an enumerator if no block is given.
* Symbol#to_proc
New method.
* __method__
New global function that returns the name of the current method as
a Symbol.
* enumerator
* Enumerator is now a built-in module. The #next and #rewind
methods are implemented using the "generator" library. Use with
care and be aware of the performance loss.
* ipaddr
* New methods
* IPAddr#<=>
* IPAddr#succ
IPAddr objects are now comparable and enumerable having these
methods. This also means that it is possible to have a Range
object between two IPAddr objects.
* IPAddr#to_range
A new method to create a Range object for the (network) address.
* Type coercion support
* IPAddr#&
* IPAddr#|
* IPAddr#==
* IPAddr#include?
These methods now accept a string or an integer instead of an
IPAddr object as the argument.
* net/smtp
* Support SSL/TLS.
* openssl
* New classes
* OpenSSL::PKey::EC
* OpenSSL::PKey::EC::Group
* OpenSSL::PKey::EC::Point
* OpenSSL::PKey::PKCS5
* OpenSSL::SSL::Session
* Documentation!
* Various new methods (see documentation).
* Remove redundant module namespace in Cipher, Digest, PKCS7, PKCS12.
Compatibility classes are provided which will be removed in Ruby 1.9.
* shellwords
* Add methods for escaping shell-unsafe characters:
* Shellwords.join
* Shellwords.escape
* Array#shelljoin
* String#shellescape
* Add shorthand methods:
* Shellwords.split (alias shellwords)
* String#shellsplit
* stringio
* StringIO#getbyte
* StringIO#readbyte
New methods. (aliases for compatibility with 1.9)
* StringIO#each_char
* StringIO#chars
New methods.
* StringIO#each
* StringIO#each_line
* StringIO#each_byte
Return an enumerator if no block is given.
* tempfile
* Tempfile.open and Tempfile.new now accept a suffix for the
temporary file to be created. To specify a suffix, pass an array
of [basename, suffix] as the first argument.
Tempfile.open(['image', 'jpg']) { |tempfile| ... }
* tmpdir
* New method:
* Dir.mktmpdir
* uri
* added LDAPS scheme.
* Change for RFC3986:
* FTP
* URI('ftp://example.com/foo').path #=> 'foo'
* URI('ftp://example.com/%2Ffoo').path #=> '/foo'
* URI::FTP.build([nil, 'example.com', nil, '/foo', 'i').to_s #=> 'ftp://example.com/%2Ffoo;type=i'
* URI merge
* URI('http://a/b/c/d;p?q').merge('?y') == URI('http://a/b/c/d;p?y')
* URI('http://a/b/c/d;p?q').merge('/./g') == URI('http://a/g')
* URI('http://a/b/c/d;p?q').merge('/../g') == URI('http://a/g')
* URI('http://a/b/c/d;p?q').merge('../../../g') == URI('http://a/g')
* URI('http://a/b/c/d;p?q').merge('../../../../g') == URI('http://a/g')
* rss
* 0.1.6 -> 0.2.4
* Fix image module URI
* Atom support
* ITunes module support
* Slash module support
* content:encoded with RSS 2.0 support
=== Interpreter Implementation
* passing a block to a Proc [experimental]
This implementation in current shape is known to be buggy/broken,
especially with nested block invocation. Take this as an
experimental feature.
* stack trace
On non-SystemStackError exception, full stack trace is shown.
=== Compatibility issues (excluding feature bug fixes)
* String#slice! had some unintentional bugs and they have been fixed
because either they disagreed with documentation or their respective
behavior of #slice. Unfortunately, this causes some
incompatibilities in the following (somewhat rare) cases.
* #slice! no longer expands the array when an out-of-boundary value
is given.
# Ruby 1.8.6
a = [1,2]
a.slice!(4,0) #=> nil
a #=> [1,2,nil,nil]
# Ruby 1.8.7
a = [1,2]
a.slice!(4,0) #=> nil
a #=> [1,2]
* #slice! no longer raises an exception but returns nil when a
negative length or out-of-boundary negative position is given.
# Ruby 1.8.6
a = [1,2]
a.slice!(1,-1) #=> (raises IndexError)
a.slice!(-5,1) #=> (raises IndexError)
# Ruby 1.8.7
a = [1,2]
a.slice!(1,-1) #=> nil
a.slice!(-5,1) #=> nil
* String#to_i, String#hex and String#oct no longer accept a sequence
of underscores (`__') as part of a number.
# Ruby 1.8.6
'1__0'.to_i #=> 10
'1__0'.to_i(2) #=> 2 # 0b10
'1__0'.oct #=> 8 # 010
'1__0'.hex #=> 16 # 0x10
# Ruby 1.8.7
'1__0'.to_i #=> 1
'1__0'.to_i(2) #=> 1
'1__0'.oct #=> 1
'1__0'.hex #=> 1
The old behavior was inconsistent with Ruby syntax and considered as
a bug.
* date
* Date.parse
'##.##.##' (where each '#' is a digit) is now taken as 'YY.MM.DD'
instead of 'MM.DD.YY'. While the change may confuse you, you can
always use Date.strptime() when you know what you are dealing
with.
* stringio
* StringIO#each_byte
The return value changed from nil to self. This is what the
document says and the same as each_line() does.
* tempfile
* The file name format has changed. No dots are included by default
in temporary file names any more. See above for how to specify a
suffix.
* uri
* See above for details.
== Changes since the 1.8.5 release
=== New platforms/build tools support
* IA64 HP-UX
* Visual C++ 8 SP1
* autoconf 2.6x
=== Global constants
* RUBY_PATCHLEVEL
New constant since 1.8.5-p1.
=== Library updates (outstanding ones only)
* builtin classes
* New method: Kernel#instance_variable_defined?
* New method: Module#class_variable_defined?
* New feature: Dir::glob() can now take an array of glob patterns.
* date
* Updated based on date2 4.0.3.
* digest
* New internal APIs for C and Ruby.
* Support for autoloading.
require 'digest'
# autoloads digest/md5
md = Digest::MD5.digest("string")
* New digest class methods: file
* New digest instance methods: clone, reset, new, inspect,
digest_length (alias size or length), block_length()
* New library: digest/bubblebabble
* New function: Digest(name)
* fileutils
* New option for FileUtils.cp_r(): :remove_destination
* nkf
* Updated based on nkf as of 2007-01-28.
* thread
* Replaced with much faster mutex implementation in C. The former
implementation, which is slow but considered to be stable, is
available with a configure option `--disable-fastthread'.
* tk
* Updated Tile extension support based on Tile 0.7.8.
* Support --without-X11 configure option for non-X11 versions of
Tcl/Tk (e.g. Tcl/Tk Aqua).
* New sample script: irbtkw.rbw -- IRB on Ruby/Tk. It has no trouble
about STDIN blocking on Windows.
* webrick
* New method: WEBrick::Cookie.parse_set_cookies()
=== Compatibility issues (excluding feature bug fixes)
* builtin classes
* String#intern now raises SecurityError when $SAFE level is greater
than zero.
* date
* Time#to_date and Time#to_datetime are added as private methods.
They cause name conflict error in ActiveSupport 1.4.1 and prior,
which comes with Rails 1.2.2 and prior. Updating ActiveSupport
and/or Rails to the latest versions fixes the problem.
* digest
* The constructor does no longer take an initial string to feed.
The following examples show how to migrate:
# Before
md = Digest::MD5.new("string")
# After (works with any version)
md = Digest::MD5.new.update("string")
# Before
hd = Digest::MD5.new("string").hexdigest
# After (works with any version)
hd = Digest::MD5.hexdigest("string")
* Digest::Base#==
* self == string
Automatic detection between binary digest values and hexadecimal
digest values has been dropped. It is always assumed that a
hexadecimal digest value is given for comparison.
* self == md
Digest objects are compared by the resulting digest values, not
by the exact vector states.
* fileutils
* A minor implementation change breaks Rake <=0.7.1.
Updating Rake to 0.7.2 or higher fixes the problem.
* tk
* Tk::X_Scrollable (Y_Scrollable) is renamed to Tk::XScrollable
(YScrollable). Tk::X_Scrollable (Y_Scrollable) is still available,
but it is an alias name.
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