fixes#712. c.f. [ruby-dev:37516].
* lib/erb.rb (ERB::Compiler#compile): recognizes magic comments.
returns a pair of compiled script and its script encoding.
* lib/erb.rb (ERB#set_eoutvar): make generated scripts return a
string in correct encoding.
* lib/erb.rb (ERB#def_method): use Kernel#eval for encoding-awareness
of the evaluated string.
* bin/erb.rb (ERB::Main.run): adds -E and -U options.
String is no longer Enumerable.
* man/erb.1: new manapage.
* test/erb/test_erb_m17n.rb: new test case for m17n features.
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mktmpdir and removes it alfter the test.
* test/cgi/test_cgi_session.rb (setup, teadown): ditto.
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calling id when NODE_CFUNC or NODE_BMETHOD.
fixes Bug #632 [ruby-core:19282].
* vm_eval.c (vm_call0, vm_call_super): ditto.
* vm_method.c (rb_add_method, rb_alias): store original id
in nd_file field of NODE_METHOD.
* test/stringio/test_stringio.rb: add a test.
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to latter switches. [ruby-dev:36692]
* lib/optparse.rb (OptionParser#summarize): do not append
unnecessary line terminator.
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given explicit but the same destination and source encoding.
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report from [ruby-core:18635], [Bug #572]
* lib/cgi/core.rb: use Encoding#find when encoding set.
* test/cgi/test_cgi_session.rb: test for session_id specified.
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* ext/pty/pty.c (get_device_once): use posix_openpt if available.
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* class.c (make_metametaclass): new function. extracted from
rb_make_metaclass.
* class.c (rb_make_metaclass): uses make_metametaclass when called for a
metaclass.
* class.c (rb_singleton_class): creates a meta^(n+2)-class in
addition to a meta^(n+1)-class when called for a meta^(n)-class.
This is because the returned meta^(n+1) class must acts as an instance of
Class, metaclass of Class, ..., meta^(n+1)-class of Class,
Module, metaclass of Module, ..., meta^(n+1)-class of Module,
Object, metaclass of Object, ..., meta^(n+2)-class of Object,
BasicObject, metaclass of BasicObject, ..., meta^(n+2)-class of
and BasicObject even when Class, Module, Object or BasicObject has
not have its meta^(i)-class yet.
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twice faster square than normal multiplication.
* random.c (rb_rand_internal): used by Bignum#*.
* test/ruby/test_bignum.rb: add some tests for above.
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(readline_s_get_completion_append_character): uses locale
encoding but not ASCII-8BIT.
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RSS::Maker.[] returns a maker class corresponds to passed version.
* test/rss/test_maker_*.rb: add tests for RSS::Maker.[].
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platform dependent call of Process.wait. coverage should be
accomplished by other method. [ruby-dev:36062]
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