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* NEWS

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@20760 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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yugui 2008-12-15 13:04:28 +00:00
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104
NEWS
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@ -18,18 +18,22 @@ with all sufficient information, see the ChangeLog file.
o Block arguments
o New semantics for block arguments
o Block local variables
o Method used for splat arguments: #to_splat
o Method used for splat arguments: #to_splat instead of #to_ary
o defined? and local variables
o Parser expects that your source code has only valid byte sequence in some character encoding.
Use magic comments to tell the parser which encoding you uses.
* builtin classes and objects
* Kernel and Object
o Kernel#require
o Kernel#methods has returned an array of strings but now it returns an array of symbols.
* Class and Module
o Class variables behavior
o Module#attr is an alias of attr_reader
o Module#instance_methods, #private_instance_methods, #public_instance_methods
o Extra subclassing check when binding UnboundMethods
o Module#instance_methods has returned an array of strings but now it returns an array of symbols.
* Exceptions
o Equality of exceptions
o SystemStackError
@ -43,22 +47,29 @@ with all sufficient information, see the ChangeLog file.
* Enumerable and Enumerator
o Enumerable#map,collect_all called without a block returns
an enumerator.
o Many interators in builtin and bundled libraries return an enumerator when called without a block.
* File and Dir operations
o #to_path in File.path, File.chmod, File.lchmod, File.chown, File.lchown, File.utime, File.unlink... [Ruby2]
o Dir.[], Dir.glob
o Dir.exist?
* String
* String and Regexp
o No longer an Enumerable
o ?c semantics
o "One-char-wide" semantics for String#[] and String#[]= [Ruby2]
o Character-wise semantics in many methods in stead of byte-wise.
o Encoding-awareness
o Regexp matches only with strings which is encoded in a compatible character encoding to the regexp's.
* Hash
o Hash#to_s is equivalent to Hash#inspect
o Semantics for Hash#each and Hash#each_pair
o Hash#select returns a hash
o Hash#key is the new name for #index which has been deprecated.
o Hash preserves order. It enumerates its elemets in the order in which each key are inserted.
o Most of the changes in Hash apply to hash like interfaces such as
ENV and *DBM.
* Numeric
o Numeric#div always rounds as Integer#div has done.
o Numeric#fdiv: ditto.
* Integer
o Integer(nil) raises TypeError
* IO operations
@ -67,38 +78,66 @@ with all sufficient information, see the ChangeLog file.
o Kernel#open takes "t" for newline conversion
o Kernel#open takes encoding specified
o IO#initialize now accepts an IO argument
o IO automatically converts byte sequence from a character encodings into another if specified.
o StringIO#readpartial
o IO.try_convert
o Limit input in IO#gets, IO#readline, IO#readlines, IO#each_line, IO#lines, IO.foreach, IO.readlines, StringIO#gets, StringIO#readline, StringIO#each, StringIO#readlines
o IO#ungetc, StringIO#ungetc
o IO#internal_encoding, IO#external_encoding, IO#set_encoding
o IO.pipe takes encoding option
* Time
o New format in Time#to_s
o Timezone information preserved on Marshal.dump/load
* Struct
o Struct#inspect
* Symbols: restriction on literal symbols
* $SAFE and bound methods
o New trusted/untrusted model in addition to tainted/untainted model.
* Time
o New format in Time#to_s
o Timezone information preserved on Marshal.dump/load
* Deprecation
o VERSION and friends
o Kernel.to_a
o Kernel#getc
o Kernel#callcc and Continuation now become 'continuation' bundled library.
o Object#type
o Hash#index
o ENV.index
o Presision is removed. Don't cry, it will be redesigned and come back in future version.
o Symbol#to_int
o Numeric#rdiv
o Removed Array and Hash #indices, #indexes
o libraries: base64, mailread, getopts, parsearg, soap, wsdl
o $KCODE is no longer effective. Use Encoding related features of each class.
o mailread library
o cgi-lib library: use cgi.
o date2 library: use date.
o eregex library
o finalize library: use ObjectSpace.define_finalizer if you really need a finalizer. really?
o ftools library: use fileutils.
o generator library: use Enumerator.
o importenv library
o jcode library: use multilingualization support of String
o parsedate library
o ping library
o readbytes library
o getopts library and parsearg library: use optparse or getoptlong.
o soap, wsdl, and xsd libraries: use soap4r gem.
o Win32API library: use dl.
o dl library: Reimplemented and API changed.
o rubyunit library and runit library: use minitest or test/unit. Or use anything you love through RubyGems.
o test/unit is reimplemented on top of minitest. This is not fully compatible with the original.
* bundled libraries
* Readline
o If Readline uses libedit, Readline::HISTORY[0] returns the first of the history.
* Pathname
o No longer has #to_str and #=~
* Continuation
o as above
=== Language core changes
* New syntax and semantics
o Magic comments to declare in which encoding your source code is written
o New literal hash syntax
o New syntax for lambdas
o .() and calling Procs without #call/#[]
@ -107,6 +146,7 @@ with all sufficient information, see the ChangeLog file.
o Arguments to #[]
o printf-style formatted strings (%)
o Newlines allowed before ternary colon
o Encoding.default_external and default_internal
=== Library updates
@ -130,19 +170,25 @@ with all sufficient information, see the ChangeLog file.
o Passing blocks to #[]
o Proc#lambda?
* Enumerable and Enumerator
o Enumerable::Enumerator is now just Enumerator.
o Enumerable#each_with_object [experimental]
o Enumerator#with_object
o Enumerator.new { ... }
* Errno::EXXX
o All of them are always defined. Errno::EXX is just an alias
of Errno::ENOERROR if your platform does not have EXXX.
* Regexp#match, String#match
o Regexp#match, String#match
* Encoding
* Encoding::Converter
o supports conversion between many encodings
* Fiber: coroutines/micro-threads
* Array
o Array#delete returns a deleted element rather than a given
object
o Array#to_s is equivalent to Array#inspect
o Array.try_convert
o Array#pack('m0') complies with RFC 4648.
* Hash
o preserving item insertion order
o Hash#default_proc=
@ -151,8 +197,6 @@ with all sufficient information, see the ChangeLog file.
* Numeric
o Numeric#upto, #downto, #times, #step
o Numeric#scalar?, Complex#scalar?
o Numeric#div
o Numeric#fdiv
* Range
o Range#cover?
o Range#include? iterates over elements and compares the
@ -181,6 +225,9 @@ with all sufficient information, see the ChangeLog file.
o Symbol methods similar to those in String
* Math
o Math#log and Math#log2
o Math#cbrt, Math#lgamma
* Rational / Complex
o They are core library now
* File and Dir operations
o New methods
* Process
@ -190,15 +237,52 @@ with all sufficient information, see the ChangeLog file.
o Readline.emacs_editing_mode?
o Readline::HISTORY.clear
* Misc. new methods
o RUBY_ENGINE to distinguish between Ruby processor implementation
o public_send
o GC.count
o ObjectSpace.count_objects
o Method#hash, Proc#hash
o __callee__
o Elements in $LOAD_PATH and $LOADED_FEATURES are expanded
* bundled libraries
* RubyGems
o Package management system for Ruby.
o Integrated with Ruby's library loader.
* Rake
o Ruby make. A simple ruby build program with capabilities similar to make.
* minitest
o Our new testing library which is cleaner and easier to read than the old test/unit.
o You can introduce the old test/unit as a gem through RubyGems if you want.
* CMath
o Complex number version of Math
* Prime
o Extracted from Mathn and improved. You can easily iterate prime numbers.
o Prime.new is obsolete. Use its class methods.
* ripper
o Ruby script parser
* commandline options
* -E, --encoding
* -U
* --enable-gems, --disable-gems
* --enable-rubyopt, --disable-rubyopt
* long options are allowed in RUBYOPT environment variable.
=== Implementation changes
* Memory Diet
* Memory Diet
* Object Compaction - Object, Array, String, Hash, Struct, Class, Module
* st_table compaction (inlining small tables)
* YARV
* YARV
* Ruby codes are compiled into opcodes before executed.
* Native thread
* Platform supports
* Support levels
(0) Supported
(1) Best effort
(2) Perhaps
(3) Not supported
* Dropped
o No longer supports djgpp, human68k, MacOS 9 or earlier, VMS nor Windows CE.