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The Ruby Programming Language https://www.ruby-lang.org/
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Hartley McGuire 8120971932 Move more NilClass methods to ruby 
```
$ make benchmark ITEM=nilclass COMPARE_RUBY="/opt/rubies/ruby-master/bin/ruby"
/opt/rubies/3.4.2/bin/ruby --disable=gems -rrubygems -I../benchmark/lib ../benchmark/benchmark-driver/exe/benchmark-driver \
                    --executables="compare-ruby::/opt/rubies/ruby-master/bin/ruby -I.ext/common --disable-gem" \
                    --executables="built-ruby::./miniruby -I../lib -I. -I.ext/common  ../tool/runruby.rb --extout=.ext  -- --disable-gems --disable-gem" \
                    --output=markdown --output-compare -v $(find ../benchmark -maxdepth 1 -name 'nilclass' -o -name '*nilclass*.yml' -o -name '*nilclass*.rb' | sort)
compare-ruby: ruby 3.5.0dev (2025-06-02T13:52:25Z master cbd49ecbbe) +PRISM [arm64-darwin24]
built-ruby: ruby 3.5.0dev (2025-06-02T22:47:21Z hm-ruby-nilclass 3e7f1f0466) +PRISM [arm64-darwin24]

|             |compare-ruby|built-ruby|
|:------------|-----------:|---------:|
|rationalize  |     24.056M|   53.908M|
|             |           -|     2.24x|
|to_c         |     23.652M|   82.781M|
|             |           -|     3.50x|
|to_i         |     89.526M|   84.388M|
|             |       1.06x|         -|
|to_f         |     84.746M|   96.899M|
|             |           -|     1.14x|
|to_r         |     25.107M|   83.472M|
|             |           -|     3.32x|
|splat        |     42.772M|   42.717M|
|             |       1.00x|         -|
```

This makes them much faster
2025-06-12 09:30:09 +02:00
.github Use artifacts built by vcpkg manifest mode 2025-06-11 17:04:18 +09:00
basictest Ensure test suite is compatible with --frozen-string-literal 2024-03-14 17:56:15 +01:00
benchmark Move more NilClass methods to ruby 2025-06-12 09:30:09 +02:00
bin
bootstraptest [Bug #21400] Fix rb_bug() when killing current root fiber in non-main thread (#13526) 2025-06-06 09:31:45 +09:00
ccan
coroutine coroutine/ppc64le: fix conditional registers got clobbered unexpectedly 2025-01-10 00:07:20 +09:00
coverage
cygwin Win32: Remove win32 directory if empty 2024-12-27 14:25:07 +09:00
defs Fetch only necessary commits of bundled gems 2025-06-09 23:41:13 +09:00
doc [DOC] Fix unclosed markup 2025-06-10 21:46:14 +09:00
enc Add RBIMPL_ATTR_NONSTRING_ARRAY() macro for GCC 15 2025-05-05 18:25:04 +09:00
ext Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
gc [DOC] Split building docs for modular GC 2025-06-09 22:30:43 -04:00
gems Update bundled gems list as of 2025-06-05 2025-06-05 07:05:29 +00:00
include Fix blocking_operation_wait use-after-free bug. 2025-06-06 13:13:16 +09:00
internal Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
lib [rubygems/rubygems] Removed ccache or sccache from args of Rust builder 2025-06-12 14:28:43 +09:00
libexec Remove the temporary script: 2025-04-22 15:34:21 +09:00
man [DOC] Fix minor miscalculation of stack size 2025-03-07 16:18:25 -05:00
misc Supress a few more tsan errors 2025-06-11 18:11:36 -07:00
missing Remove spinlock in dtoa's Balloc, use xmalloc 2025-04-07 16:56:44 -07:00
prism [ruby/prism] Fix typo in visitor example code 2025-06-09 13:41:17 +00:00
sample Revert "* remove trailing spaces. [ci skip]" 2025-04-18 06:48:30 +09:00
spec Tweak to spec setup so that rspec instead of our bin/rspec binstub still works 2025-06-12 08:45:02 +09:00
template YJIT: ZJIT: Allow both JITs in the same build 2025-05-15 00:39:03 +09:00
test [rubygems/rubygems] Removed ccache or sccache from args of Rust builder 2025-06-12 14:28:43 +09:00
tool Fix make test-bundler 2025-06-11 09:38:56 +09:00
wasm wasm: increase the default Asyncify buffer size 2025-05-03 01:36:13 +08:00
win32 Win: Use VsDevCmd.bat instead of old vcvarsall.bat 2025-06-01 12:16:18 +09:00
yjit Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
zjit Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
.dir-locals.el
.document Assert everything is compiled in test_zjit (https://github.com/Shopify/zjit/pull/40) 2025-04-18 21:52:59 +09:00
.editorconfig
.gdbinit gdbinit: fix printing of T_DATA 2025-06-11 18:11:36 -07:00
.git-blame-ignore-revs Ignore miss-and-revised commits [ci skip] 2025-06-07 19:58:24 +09:00
.gitattributes Tell GitHub that *.inc.rs files are generated 2025-04-18 21:52:59 +09:00
.gitignore YJIT: ZJIT: Allow both JITs in the same build 2025-05-15 00:39:03 +09:00
.indent.pro
.mailmap Parenthesized SVN IDs in .mailmap look too verbose [ci skip] 2024-04-12 18:22:04 +09:00
.rdoc_options [DOC] Set canonical root for online docs (#13410) 2025-05-22 09:18:46 -07:00
.rspec_parallel
.travis.yml .travis.yml: Drop arm64 case. 2025-01-20 15:48:08 +01:00
aclocal.m4
addr2line.c Fix C level backtraces for USE_ELF 2025-05-01 16:58:06 -07:00
addr2line.h
array.c Fix typo (newsString -> new String) 2025-05-11 07:07:10 +09:00
array.rb [DOC] Tweaks for Array doc 2025-01-03 11:42:53 -05:00
ast.c Implement CLASS NODE locations 2025-03-08 18:26:40 +09:00
ast.rb [DOC] Fix typo in related class reference 2024-12-22 15:07:56 +09:00
autogen.sh
bignum.c bignum nogvl is offload safe. (#12132) 2024-11-21 13:46:27 +13:00
BSDL
builtin.c Follow the code style about else 2025-05-11 23:32:50 +09:00
builtin.h YJIT: Replace Array#each only when YJIT is enabled (#11955) 2024-11-04 11:14:28 -05:00
Cargo.lock YJIT: ZJIT: Allow both JITs in the same build 2025-05-15 00:39:03 +09:00
Cargo.toml ZJIT: Propagate disasm feature to ZJIT and YJIT (#13372) 2025-05-19 10:34:29 -07:00
class.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
common.mk Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
compar.c [DOC] Exclude 'Class' and 'Module' from RDoc's autolinking 2025-01-02 12:36:06 +09:00
compile.c Suppress overflow warning at ALLOC_N in iseq_set_local_table 2025-06-04 15:31:40 +09:00
complex.c Move more NilClass methods to ruby 2025-06-12 09:30:09 +02:00
configure.ac Check for 64bit atomic operations 2025-06-04 15:31:28 +09:00
constant.h
cont.c Take VM lock around manipulation of fiber pool for vacant stacks 2025-05-29 12:51:43 -04:00
CONTRIBUTING.md [DOC] Fix contributing link 2025-04-09 19:13:58 +09:00
COPYING
COPYING.ja
darray.h Create rb_darray_realloc_mul_add 2025-01-02 11:03:04 -05:00
debug.c Fix setting GC stress at boot when objspace not available 2024-03-27 09:39:23 -04:00
debug_counter.c
debug_counter.h Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
dir.c [Bug #21128] Include fcntl.h before checking for O_CLOEXEC 2025-02-17 13:05:18 +09:00
dir.rb [DOC] Fix call-seq of Dir.glob 2025-05-20 22:12:58 +09:00
dln.c namespace on read 2025-05-11 23:32:50 +09:00
dln.h namespace on read 2025-05-11 23:32:50 +09:00
dln_find.c Make dln_warning a variadic macro 2024-04-07 16:44:42 +09:00
dmydln.c namespace on read 2025-05-11 23:32:50 +09:00
dmyenc.c Separate miniruby from dmyext.c 2024-02-21 23:37:20 +09:00
dmyext.c Separate miniruby from dmyext.c 2024-02-21 23:37:20 +09:00
encindex.h
encoding.c Delimit the scopes using encoding/symbol tables 2025-05-25 15:22:43 +09:00
enum.c [doc] update Enumerable document. 2025-04-22 01:49:41 +09:00
enumerator.c enumerator.c: Remove unused IDs 2025-06-10 21:13:37 +02:00
error.c Fix style [ci skip] 2025-04-19 22:02:10 +09:00
eval.c Use flag for RCLASS_IS_INITIALIZED 2025-05-28 11:44:07 -04:00
eval_error.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
eval_intern.h namespace on read 2025-05-11 23:32:50 +09:00
eval_jump.c With ASAN EC_REPUSH_TAG doesn't work 2024-06-24 16:50:09 +09:00
file.c Fix build on alpine with statx change 2025-06-09 21:22:36 +09:00
gc.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
gc.rb [DOC] Fix description comment typo 2025-02-13 08:53:02 +09:00
gem_prelude.rb
golf_prelude.rb
goruby.c Initialize goruby only when executing 2024-09-08 23:40:18 +09:00
GPL
hash.c Use RB_VM_LOCKING 2025-05-25 15:22:43 +09:00
hash.rb [DOC] Tweaks for Hash.new 2025-01-24 10:44:24 -05:00
hrtime.h use of stdckdint.h 2024-04-27 21:55:28 +09:00
id_table.c shape.c: fix off by one error in shape_tree_mark 2025-06-04 07:59:20 +02:00
id_table.h shape.c: Implement a lock-free version of get_next_shape_internal 2025-06-02 17:49:53 +02:00
imemo.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
inits.c Fix blocking_operation_wait use-after-free bug. 2025-06-06 13:13:16 +09:00
insns.def Maintain same behavior regardless of tracepoint state 2025-05-15 14:19:48 -07:00
internal.h Ensure struct rb_io is passed through to thread.c. (#13134) 2025-04-19 09:55:16 +09:00
io.c Don't enumerate io->blocking_operations if fork generation is different. (#13359) 2025-05-16 14:14:23 +09:00
io.rb
io_buffer.c Allow IO#close to interrupt IO operations on fibers using fiber_interrupt hook. (#12839) 2025-05-23 14:55:05 +09:00
iseq.c Fix memory leak in Prism's RubyVM::InstructionSequence.new 2025-06-03 10:00:15 -04:00
iseq.h Avoid pinning storage_head in iseq_mark_and_move (#12880) 2025-03-17 10:42:48 -04:00
jit.c YJIT: ZJIT: Share identical glue functions 2025-05-02 23:47:57 +09:00
jit.rs YJIT: ZJIT: Allow both JITs in the same build 2025-05-15 00:39:03 +09:00
kernel.rb Move Kernel#with_yjit to Module#with_yjit 2024-11-27 09:04:07 -08:00
KNOWNBUGS.rb
LEGAL Update LEGAL to mention ext/json/vendor 2025-03-28 07:24:52 +09:00
lex.c.blt Use gperf 3.1 to generate ANSI-C code 2024-06-24 23:43:45 +09:00
load.c Align styles [ci skip] 2025-05-15 17:48:40 +09:00
loadpath.c
localeinit.c
main.c Make wrapper of main for wasm more generic 2025-03-16 17:33:58 +09:00
marshal.c [Bug #20009] Support marshaling non-ASCII name class/module 2025-05-16 21:22:33 +09:00
marshal.rb
math.c
memory_view.c Use RB_VM_LOCKING 2025-05-25 15:22:43 +09:00
method.h Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
mini_builtin.c Follow the code style about else 2025-05-11 23:32:50 +09:00
miniinit.c Gather code for builtin loading to miniinit.c 2024-09-08 23:16:46 +09:00
namespace.c Delete useless Namespace#current_details 2025-06-07 18:19:59 +09:00
NEWS.md Follow-ups to #13555 2025-06-10 12:25:32 +02:00
nilclass.rb Move more NilClass methods to ruby 2025-06-12 09:30:09 +02:00
node.c Add rb_node_get_type for debuggers 2025-01-09 19:24:27 +09:00
node.h Make node line macros inline functions 2025-01-30 18:19:53 +09:00
node_dump.c Implement CLASS NODE locations 2025-03-08 18:26:40 +09:00
numeric.c Fix Integer.sqrt to never exceed actual value 2025-04-07 11:08:10 +09:00
numeric.rb Fix the method name in a comment [ci skip] 2024-11-14 09:24:00 +09:00
object.c Refactor the last references to rb_shape_t 2025-06-11 16:38:38 +02:00
pack.c Expand buffer at once then fill it at once 2024-09-29 18:55:15 +09:00
pack.rb [DOC] Mention block mode of String#unpack 2024-09-29 19:09:59 +09:00
parse.y [Bug #21381] Refine error messages for it and numbered parameters 2025-06-05 19:21:02 +09:00
parser_bits.h
parser_node.h
parser_st.c Fix extra semicolon outside of a function in NO_SANITIZE 2024-10-08 23:29:49 +09:00
parser_st.h
parser_value.h
prelude.rb Deprecate passing arguments to Set#to_set and Enumerable#to_set 2025-06-06 01:24:05 +09:00
prism_compile.c Fix memory leak with invalid yield in prism 2025-05-29 16:06:49 -04:00
prism_compile.h [PRISM] Handle forwarding inside eval 2025-01-14 18:41:50 -05:00
prism_init.c
probes.d
probes_helper.h
proc.c proc.c: saves Binding#clone on copying ivars twice 2025-06-06 11:30:23 +02:00
process.c Suppress warnings by gcc-13 with -Og 2025-06-05 22:33:02 +09:00
ractor.c Get rid of gen_fields_tbl.fields_count 2025-06-09 16:38:29 +02:00
ractor.rb s/sned/send 2025-06-09 16:23:08 +09:00
ractor_core.h ignore confirming belonging while finrializer 2025-06-07 09:52:03 +09:00
ractor_sync.c Fix memory leak of Ractor ports 2025-06-03 15:48:38 -04:00
random.c Remove a useless condition expression 2024-11-30 00:03:07 +09:00
range.c [DOC] beginless and endless ranges inspect returns "nil..nil" always 2025-03-21 10:30:40 +09:00
rational.c Move more NilClass methods to ruby 2025-06-12 09:30:09 +02:00
re.c Fix regular expressions across ractors that match different encodings 2025-06-10 09:00:17 -07:00
README.EXT
README.EXT.ja
README.ja.md [Feature #21116] Extract RJIT as a third-party gem 2025-02-13 18:01:03 +09:00
README.md [DOC] Fix contributing link 2025-04-09 19:13:58 +09:00
regcomp.c Fix [Bug #20246]: Don't set next_head_exact if a capture is called (#9897) 2024-02-13 09:53:03 +09:00
regenc.c Align styles [ci skip] 2025-05-15 17:48:40 +09:00
regenc.h Separate __has_attribute from defined(__has_attribute) 2025-05-12 17:45:39 +09:00
regerror.c Align styles [ci skip] 2025-05-15 17:48:40 +09:00
regexec.c Align styles [ci skip] 2025-05-15 17:48:40 +09:00
regint.h Fix memory leak in String#start_with? when regexp times out 2024-07-26 08:42:38 -04:00
regparse.c Prevent double free for too big repetition quantifiers (#13332) 2025-05-16 10:14:26 +09:00
regparse.h
regsyntax.c
ruby-runner.c Do not overwrite GEM_PATH if already set 2025-02-10 18:04:25 +09:00
ruby.c namespace on read 2025-05-11 23:32:50 +09:00
ruby_assert.h
ruby_atomic.h Allow volatile pointer relaxed atomic operations 2025-06-05 17:32:24 +09:00
ruby_parser.c Remove rb_enc_associate for Parser 2025-02-15 15:37:09 +09:00
rubyparser.h Implement CLASS NODE locations 2025-03-08 18:26:40 +09:00
rubystub.c
scheduler.c Fix handling of cancelled blocking operations. (#13570) 2025-06-10 07:30:43 +00:00
set.c Add missing write barrier in set_i_initialize_copy 2025-06-09 10:06:47 -07:00
shape.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
shape.h Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
signal.c Remove dead rb_malloc_info_show_results 2025-06-04 14:07:19 -04:00
siphash.c Suppress gcc 15 unterminated-string-initialization warnings 2025-04-30 20:04:10 +09:00
siphash.h
sparc.c
sprintf.c Fix benign off-by-one 2024-11-08 17:39:19 -08:00
st.c Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
strftime.c Remove unused or wrong conversions 2024-10-20 19:33:21 +09:00
string.c [Bug #21380] Prohibit modification in String#split block 2025-05-29 11:10:58 +09:00
string.rb Update string.rb 2025-05-22 10:17:46 -04:00
struct.c [DOC] Show NONE within Measure namespace (#12274) 2025-01-09 13:53:49 +09:00
symbol.c Suppress warnings by gcc-13 with -Og 2025-06-05 22:33:02 +09:00
symbol.h Use dllexport as RUBY_FUNC_EXPORTED on Windows 2024-06-09 16:55:27 +09:00
symbol.rb Move Symbol#name into symbol.rb 2024-11-13 10:29:07 +01:00
thread.c Fix blocking_operation_wait use-after-free bug. 2025-06-06 13:13:16 +09:00
thread_none.c Fix style [ci skip] 2025-04-19 22:02:10 +09:00
thread_none.h
thread_pthread.c Ractor::Port 2025-05-31 04:01:33 +09:00
thread_pthread.h Ractor::Port 2025-05-31 04:01:33 +09:00
thread_pthread_mn.c Ractor::Port 2025-05-31 04:01:33 +09:00
thread_sync.c [DOC] Doc for Thread::ConditionVariable 2025-04-02 10:47:52 -04:00
thread_sync.rb
thread_win32.c Ractor::Port 2025-05-31 04:01:33 +09:00
thread_win32.h
time.c Implement dcompact for Time objects 2025-03-31 16:56:29 +02:00
timev.h
timev.rb [doc] update Time document. 2025-02-23 10:37:36 +09:00
trace_point.rb [DOC] Fix grammar errors, typos, and improve readability of trace_point.rb (#12150) 2024-12-12 16:44:15 -05:00
transcode.c Fix constant documents (#12357) 2024-12-17 11:58:00 +09:00
transcode_data.h
universal_parser.c Remove rb_enc_associate for Parser 2025-02-15 15:37:09 +09:00
util.c Fix double free when getcwd does not allocate buffer 2024-07-17 15:16:21 +09:00
variable.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
variable.h Get rid of gen_fields_tbl.fields_count 2025-06-09 16:38:29 +02:00
vcpkg.json Revert "Temporary removed gmp because vcpkg package is broken." 2025-02-17 18:08:37 +09:00
version.c Implement version string for ZJIT 2025-04-18 21:52:57 +09:00
version.h
vm.c Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
vm_args.c Fix assertion failure with anonymous splats 2025-04-02 19:31:05 -07:00
vm_backtrace.c Make rb_debug_inspector_backtrace_locations return a raw backtrace 2025-06-04 19:53:16 +09:00
vm_callinfo.h Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
vm_core.h Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
vm_debug.h
vm_dump.c vm_dump.c: avoid USE_MN_THREADS is not defined warning 2025-05-05 15:55:42 +02:00
vm_eval.c Align styles [ci skip] 2025-05-15 17:48:40 +09:00
vm_exec.c Only count VM instructions in YJIT stats builds 2025-02-14 14:39:35 -05:00
vm_exec.h Use UNDEF_P 2024-01-30 14:48:59 +09:00
vm_insnhelper.c Turn rb_classext_t.fields into a T_IMEMO/class_fields 2025-06-12 07:58:16 +02:00
vm_insnhelper.h Only count VM instructions in YJIT stats builds 2025-02-14 14:39:35 -05:00
vm_method.c Optimize callcache invalidation for refinements 2025-06-09 12:33:35 +09:00
vm_opts.h Implement chilled strings 2024-03-19 09:26:49 +01:00
vm_sync.c support nested VM barrier synchronization 2025-06-06 06:49:08 +09:00
vm_sync.h Ractor::Port 2025-05-31 04:01:33 +09:00
vm_trace.c Fix jump buffer leak in WASI builds 2025-04-27 15:47:30 +09:00
vsnprintf.c
warning.rb Kernel#warn: don't call Warning.warn unless the category is enabled 2024-06-12 20:57:31 +02:00
weakmap.c Fix a typo in WeakKeyMap argument error 2025-02-04 22:25:17 +01:00
yjit.c Refactor raw accesses to rb_shape_t.capacity 2025-06-05 22:06:15 +02:00
yjit.h Fix false-positive memory leak using Valgrind in YJIT (#12057) 2024-11-11 20:45:11 +00:00
yjit.rb Prevent enabling yjit when zjit enabled (GH-13358) 2025-05-16 17:31:43 +00:00
yjit_hook.rb Move Kernel#with_yjit to Module#with_yjit 2024-11-27 09:04:07 -08:00
zjit.c Get rid of TOO_COMPLEX shape type 2025-06-04 13:13:50 +02:00
zjit.h Prevent enabling yjit when zjit enabled (GH-13358) 2025-05-16 17:31:43 +00:00
zjit.rb Assert everything is compiled in test_zjit (https://github.com/Shopify/zjit/pull/40) 2025-04-18 21:52:59 +09:00

README.md

Actions Status: MinGW Actions Status: Ubuntu Actions Status: Windows Travis Status

What is Ruby?

Ruby is an interpreted object-oriented programming language often used for web development. It also offers many scripting features to process plain text and serialized files, or manage system tasks. It is simple, straightforward, and extensible.

Features of Ruby

  • Simple Syntax
  • Normal Object-oriented Features (e.g. class, method calls)
  • Advanced Object-oriented Features (e.g. mix-in, singleton-method)
  • Operator Overloading
  • Exception Handling
  • Iterators and Closures
  • Garbage Collection
  • Dynamic Loading of Object Files (on some architectures)
  • Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, etc.) cf. https://docs.ruby-lang.org/en/master/maintainers_md.html#label-Platform+Maintainers

How to get Ruby

For a complete list of ways to install Ruby, including using third-party tools like rvm, see:

https://www.ruby-lang.org/en/downloads/

You can download release packages and the snapshot of the repository. If you want to download whole versions of Ruby, please visit https://www.ruby-lang.org/en/downloads/releases/.

Download with Git

The mirror of the Ruby source tree can be checked out with the following command:

$ git clone https://github.com/ruby/ruby.git

There are some other branches under development. Try the following command to see the list of branches:

$ git ls-remote https://github.com/ruby/ruby.git

You may also want to use https://git.ruby-lang.org/ruby.git (actual master of Ruby source) if you are a committer.

How to build

See Building Ruby

Ruby home page

https://www.ruby-lang.org/

Documentation

Mailing list

There is a mailing list to discuss Ruby. To subscribe to this list, please send the following phrase:

join

in the mail subject (not body) to the address ruby-talk-request@ml.ruby-lang.org.

Copying

See the file COPYING.

Feedback

Questions about the Ruby language can be asked on the Ruby-Talk mailing list or on websites like https://stackoverflow.com.

Bugs should be reported at https://bugs.ruby-lang.org. Read "Reporting Issues" for more information.

Contributing

See "Contributing to Ruby", which includes setup and build instructions.

The Author

Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.

matz@ruby-lang.org