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Nobuyoshi Nakada a64e93a896
Use ID without cache and fix conversion of offset
2024-02-16 15:26:10 +09:00
.github Rename the annocheck job 2024-02-15 21:41:48 -08:00
basictest [wasm] bootstraptest, basictest: disable backquote literal tests 2022-01-19 11:19:06 +09:00
benchmark Avoid allocation when passing no keywords to anonymous kwrest methods 2024-02-13 11:05:26 -05:00
bin Resync prism delete bin/dot 2023-11-14 16:22:03 -05:00
bootstraptest Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
ccan Initialize loop variable of `ccan_list_for_each` 2023-12-24 19:34:25 +09:00
coroutine Win32: Use prototype 2024-02-11 20:55:26 +09:00
coverage
cygwin windows-arm64 support (#8995) 2023-11-23 17:17:28 +09:00
defs [DOC] Add known_errors documents 2024-01-13 11:08:03 +09:00
doc s/ therefor/therefore/ 2024-02-15 17:01:02 +09:00
enc Add `modencs` target to build encodings/transcoders as modules 2023-09-11 11:06:49 +09:00
ext Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
gems Bundle rbs-3.4.4 (#9883) 2024-02-08 14:17:01 +00:00
include Win32: Fix pre-defined macros for platforms 2024-02-11 19:43:06 +09:00
internal Move rb_class_allocate_instance from gc.c to object.c 2024-02-14 13:43:02 -05:00
lib [rubygems/rubygems] Add `gitlab:` Git source shorthand 2024-02-16 04:53:14 +00:00
libexec [rubygems/rubygems] Use modern hashes consistently 2023-12-07 22:29:33 +00:00
man [DOC] Fix two minor typos on manual page 2024-01-13 09:01:30 +09:00
misc YJIT: Add --yjit-perf=codegen option (#9957) 2024-02-14 09:09:14 -08:00
missing Fix ruby_free_proctitle 2024-01-12 16:13:42 -05:00
prism [ruby/prism] Make location methods thread-safe 2024-02-15 23:04:38 +00:00
sample [ruby/win32ole] [DOC] Move sample to toplevel 2024-01-28 15:25:36 +00:00
spec [rubygems/rubygems] bin/rubocop -a 2024-02-16 05:38:41 +00:00
template Alias init functions 2024-02-04 16:43:09 +09:00
test [rubygems/rubygems] Relax regexp for Ruby 3.3 or before 2024-02-16 05:38:42 +00:00
tool Show the method owner in backtraces 2024-02-15 19:11:58 +09:00
wasm [wasm] Avoid malloc during longjmp 2023-11-23 02:15:42 +09:00
win32 Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
yjit Pop the operand at the end 2024-02-15 16:38:21 -08:00
.dir-locals.el
.document [DOC] Documentize known_errors 2024-01-13 11:08:00 +09:00
.editorconfig
.gdbinit Remove nd_entry from NODE_GASGN and NODE_GVAR 2023-08-23 07:59:54 +09:00
.git-blame-ignore-revs Add indentation to ignore revs [ci skip] 2023-09-29 00:57:09 +09:00
.gitattributes
.gitignore Added vcpkg manifest for windows build environment. 2024-01-26 12:38:01 +09:00
.indent.pro Update .indent.pro [ci skip] 2022-07-22 21:59:58 +09:00
.rdoc_options [DOC] Load options and parse files from srcdir 2024-01-06 21:19:51 +09:00
.rspec_parallel
.travis.yml Revert ".travis.yml: Drop s390x temporarily." 2024-01-31 09:56:39 +01:00
BSDL
CONTRIBUTING.md Improve documentation on contributing to Ruby 2022-05-11 10:59:24 -04:00
COPYING
COPYING.ja
GPL
KNOWNBUGS.rb
LEGAL Remove about ext/psych/yaml which is no longer bundled [ci skip] 2023-01-11 18:05:15 +09:00
NEWS.md Update default gems list at e7f7a85285 [ci skip] 2024-02-15 20:51:11 +00:00
README.EXT
README.EXT.ja
README.ja.md [DOC] Fixes for link fragments (#7981) 2023-06-28 09:05:43 -04:00
README.md [DOC] README.md: Remove Cirrus CI badge image. (#8785) 2023-10-27 15:53:43 +02:00
aclocal.m4
addr2line.c Move an embedded directive outside macro arguments 2024-02-08 12:06:07 +09:00
addr2line.h Dump backtraces to an arbitrary stream 2023-09-25 22:57:28 +09:00
array.c [DOC] Doc compliance (#9955) 2024-02-14 10:47:42 -05:00
array.rb [DOC] Doc compliance (#9955) 2024-02-14 10:47:42 -05:00
ast.c Remove ruby object from string nodes 2024-02-09 14:20:17 +09:00
ast.rb ast.rb: Fix bug for source of multibyte characters 2023-11-05 00:54:22 +09:00
autogen.sh autogen.sh: Copy auxiliary files instead of symlinks with `-i` 2021-12-06 17:53:37 +09:00
bignum.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
builtin.c Use line numbers as builtin-index 2024-01-22 19:39:34 +09:00
builtin.h Rewrite Array#each in Ruby using Primitive (#9533) 2024-01-23 20:09:57 +00:00
class.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
common.mk Added singleton for prime 2024-02-15 20:34:52 +09:00
compar.c docs(compar.c): change class name in example 2023-12-11 08:56:37 +09:00
compile.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
complex.c Replace assert with RUBY_ASSERT in complex.c 2024-02-12 15:07:47 -05:00
configure.ac Bump the required BASERUBY version to 2.7 (#9566) 2024-01-16 15:54:17 -08:00
constant.h Stop exporting symbols for MJIT 2023-03-06 21:59:23 -08:00
cont.c Adjust styles and indents [ci skip] 2024-01-08 00:50:41 +09:00
darray.h Replace assert with RUBY_ASSERT in darray.h 2024-02-12 15:07:47 -05:00
debug.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
debug_counter.c Stop exporting symbols for MJIT 2023-03-06 21:59:23 -08:00
debug_counter.h Add Missing Counters to `rb_debug_counter_type` enum (#8297) 2023-08-25 15:27:56 -07:00
dir.c Define `IO_WITHOUT_GVL` macro 2024-01-24 20:51:50 +09:00
dir.rb [DOC] Fix doc/regexp.rdoc links 2023-11-14 15:56:57 +09:00
dln.c Do not define ABI version in statically linked objects 2024-02-04 20:33:45 +09:00
dln.h dln_symbol: make dln_sym accessible Ruby internally 2023-12-14 17:39:42 +09:00
dln_find.c Don't check for null pointer in calls to free 2023-06-30 09:13:31 -04:00
dmydln.c dln_symbol: make dln_sym accessible Ruby internally 2023-12-14 17:39:42 +09:00
dmyenc.c Expand tabs [ci skip] 2022-07-21 09:42:04 -07:00
dmyext.c
encindex.h Rename ENCINDEX_ASCII to ENCINDEX_ASCII_8BIT 2022-07-19 08:48:56 +02:00
encoding.c Fix memory leak in setting encodings 2024-01-03 13:31:43 -05:00
enum.c Replace assert with RUBY_ASSERT in enum.c 2024-02-12 15:07:47 -05:00
enumerator.c Fix Enumerator#with_index for GC compaction 2023-12-24 16:22:34 -05:00
error.c Optional detail info at assertion failure 2024-02-08 18:08:41 +09:00
eval.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
eval_error.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
eval_intern.h [wasm] allocate Asyncify setjmp buffer in heap 2023-11-13 19:17:16 +09:00
eval_jump.c [Bug #19016] re-order error handling at cleanup 2022-11-22 00:33:19 +09:00
file.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
gc.c Remove unused argument in cc_table_free 2024-02-14 16:25:05 -05:00
gc.rb [DOC] documents of aliased methods 2023-12-18 20:17:43 +09:00
gem_prelude.rb Warn default gems which will be gemified in future 2023-07-28 14:57:10 +09:00
golf_prelude.rb
goruby.c Expand tabs [ci skip] 2022-07-21 09:42:04 -07:00
hash.c [DOC] Doc compliance (#9955) 2024-02-14 10:47:42 -05:00
hrtime.h Fix per-instance Regexp timeout (#6621) 2022-10-24 18:03:26 +09:00
id_table.c Replace assert with RUBY_ASSERT in id_table.c 2024-02-12 15:07:47 -05:00
id_table.h Transition complex objects to "too complex" shape 2022-12-15 10:06:04 -08:00
inits.c Initialize interrupt queue before signal handlers (#9196) 2023-12-11 21:12:08 -08:00
insns.def Allow `foo(**nil, &block_arg)` 2024-02-12 13:02:50 -05:00
internal.h Don't redefine RB_OBJ_WRITE 2023-01-18 08:49:32 -05:00
io.c Remove used str field in struct binwrite_arg 2024-02-15 11:48:31 -05:00
io.rb Move IO#readline to Ruby 2023-09-28 10:43:45 -07:00
io_buffer.c Improve behavioural consistency of unallocated (zero length) `IO::Buffer`. (#9532) 2024-01-15 10:47:13 +13:00
iseq.c [PRISM] Correctly hook up line numbers for eval 2024-02-14 15:29:26 -05:00
iseq.h [PRISM] Mirror iseq APIs 2024-01-31 13:41:36 -05:00
kernel.rb YJIT: Allow inlining ISEQ calls with a block (#9622) 2024-01-23 19:36:23 +00:00
lex.c.blt reserved_word: just use gperf 3.1 declaration 2022-09-21 11:44:09 +09:00
load.c [PRISM] Correctly hook up line numbers for eval 2024-02-14 15:29:26 -05:00
loadpath.c
localeinit.c Expand tabs [ci skip] 2022-07-21 09:42:04 -07:00
main.c Adjust styles [ci skip] 2024-02-12 16:50:30 +09:00
marshal.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
marshal.rb [DOC] Document Marshal#load parameter freeze: (#5332) 2021-12-24 09:55:09 +01:00
math.c [DOC] Missing comment markers 2023-09-27 16:18:05 +09:00
memory_view.c Remove null checks for xfree 2024-01-19 10:25:02 -05:00
method.h Remove written-but-never-read `me->def.body.refined.owner` 2023-11-29 01:41:40 +00:00
mini_builtin.c Use line numbers as builtin-index 2024-01-22 19:39:34 +09:00
miniinit.c Free everything at shutdown 2023-12-07 15:52:35 -05:00
nilclass.rb
node.c Remove ruby object from string nodes 2024-02-09 14:20:17 +09:00
node.h Constify `rb_global_parser_config` 2024-01-14 17:55:11 +09:00
node_dump.c Fix [BUG] unknown node for NODE_ENCODING 2024-02-12 14:49:07 +09:00
numeric.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
numeric.rb YJIT: Allow inlining ISEQ calls with a block (#9622) 2024-01-23 19:36:23 +00:00
object.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
pack.c Reuse `natstr` if it equals `endstr` 2023-10-06 16:33:44 +09:00
pack.rb [DOC] Link to packed data doc (#6567) 2022-10-18 10:16:22 -05:00
parse.y Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
parser_bits.h [Feature #19719] Universal Parser 2023-06-12 18:23:48 +09:00
parser_node.h Change RNode structure from union to struct 2023-09-28 11:58:10 +09:00
parser_st.c check modifcation whil ar->st 2023-12-15 11:58:43 +09:00
parser_st.h Fix memory leak when copying ST tables 2023-06-29 11:16:50 -04:00
parser_value.h [Feature #19719] Universal Parser 2023-06-12 18:23:48 +09:00
prelude.rb Fix ruby_testoptions on RubyCI 2023-03-08 12:00:14 -08:00
prism_compile.c [PRISM] Correctly hook up line numbers for eval 2024-02-14 15:29:26 -05:00
prism_compile.h [PRISM] Compile constant reads using opt_getconstant_path 2024-02-08 11:53:10 -05:00
prism_init.c Move CRuby-specific prism files to top level 2023-09-28 09:44:16 -04:00
probes.d
probes_helper.h Stop exporting symbols for MJIT 2023-03-06 21:59:23 -08:00
proc.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
process.c [DOC] Move "Execution Shell on Windows" under "Execution Shell" 2024-01-29 17:16:49 +09:00
ractor.c Use `UNDEF_P` 2024-01-30 14:48:59 +09:00
ractor.rb remove `Ractor::Selector` from Ruby level 2023-12-16 01:00:01 +09:00
ractor_core.h Revert "allow enabling Prism via flag or env var" 2023-12-06 10:21:12 +09:00
random.c Use STATIC_ASSERT 2024-01-13 23:43:07 +09:00
range.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
rational.c Replace assert with RUBY_ASSERT in rational.c 2024-02-12 15:07:47 -05:00
re.c Fix memory leak in OnigRegion when match raises 2024-02-02 10:39:42 -05:00
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 [Bug #20239] Fix overflow at down-casting 2024-02-07 15:14:26 +09:00
regenc.h Prevent potential buffer overflow on enclen 2022-12-12 16:21:31 +09:00
regerror.c
regexec.c [Bug #20239] Fix overflow at down-casting 2024-02-07 15:14:26 +09:00
regint.h Fix memory leak in stk_base when Regexp timeout 2024-02-02 10:39:42 -05:00
regparse.c Remove null checks for xfree 2024-01-19 10:25:02 -05:00
regparse.h Fix onigmo name table without st 2023-11-03 10:41:48 +09:00
regsyntax.c
rjit.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
rjit.h RJIT: Add --rjit-trace to allow TracePoint during JIT 2023-12-21 21:05:13 -08:00
rjit.rb RJIT: Clean up unnecessary documentation 2023-12-21 16:47:13 -08:00
rjit_c.c RJIT: Correct the type of rb_vm_insns_count 2023-12-19 00:02:38 -08:00
rjit_c.h RJIT: Properly reject keyword splat with `yield` 2024-01-18 20:22:40 -05:00
rjit_c.rb Introduce Allocationless Anonymous Splat Forwarding 2024-01-24 18:25:55 -08:00
ruby-runner.c Win32: ruby-runner is unnecessary on Windows in favor of SxS [ci skip] 2023-12-04 10:02:38 +09:00
ruby.c Use ID without cache and fix conversion of offset 2024-02-16 15:26:10 +09:00
ruby_assert.h
ruby_atomic.h
ruby_parser.c Fix memory leak when parsing invalid hash symbol 2024-02-13 11:05:56 -05:00
rubyparser.h Fix memory leak when parsing invalid hash symbol 2024-02-13 11:05:56 -05:00
rubystub.c `ruby_init_setproctitle` declaration has moved to internal/missing.h 2022-08-31 15:31:47 +09:00
scheduler.c [DOC] Fix method docs of scheduler#io_read and scheduler#io_write 2023-09-10 19:39:28 +09:00
shape.c Handle mmap failures for redblack tree cache 2024-01-12 09:31:36 -08:00
shape.h Use 32-bit integers for redblack_id_t 2023-12-04 13:57:12 -05:00
signal.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
siphash.c Fix and improve coroutines for Darwin (macOS) ppc/ppc64. (#5975) 2022-10-19 23:49:45 +13:00
siphash.h
sparc.c [DOC]Some link prefix replace 2022-04-09 17:43:46 +09:00
sprintf.c [Bug #19167] Remove useless conversion of classes for special const 2022-12-09 22:11:44 +09:00
st.c Move clean-up after table rebuilding 2024-02-09 11:09:56 +09:00
strftime.c Introduce encoding check macro 2022-12-02 01:31:27 +09:00
string.c Unset STR_SHARED when setting string to embed 2024-02-15 12:19:45 -05:00
string.rb [DOC] Doc compliance (#9955) 2024-02-14 10:47:42 -05:00
struct.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
symbol.c YJIT: Simplify Kernel#send guards and admit more cases (#9956) 2024-02-14 11:19:04 -05:00
symbol.h [Bug #19882] Reject tokens invalid as symbols 2023-09-15 17:27:36 +09:00
symbol.rb Annotate Symbol#to_s as leaf (#9769) 2024-01-31 10:47:35 -05:00
thread.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
thread_none.c Pass down "stack start" variables from closer to the top of the stack 2024-01-19 09:55:12 +11:00
thread_none.h M:N thread scheduler for Ractors 2023-10-12 14:47:01 +09:00
thread_pthread.c notify ASAN about M:N threading stack switches 2024-02-06 22:23:42 +11:00
thread_pthread.h Use noinline version of accessing current ec 2023-12-24 15:13:33 +09:00
thread_pthread_mn.c Fix a warning with USE_RUBY_DEBUG_LOG=1 on macOS 2024-02-14 10:40:26 +09:00
thread_sync.c Replace assert with RUBY_ASSERT in thread_sync.c 2024-02-12 15:07:47 -05:00
thread_sync.rb thread_sync.c: Clarify and document the behavior of timeout == 0 2022-10-17 16:56:00 +02:00
thread_win32.c Make stack bounds detection work with ASAN 2024-01-19 09:55:12 +11:00
thread_win32.h M:N thread scheduler for Ractors 2023-10-12 14:47:01 +09:00
time.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
timev.h Fix crash in Time on 32-bit systems 2023-04-04 11:12:07 -04:00
timev.rb [DOC] Markup class name `Time` as code 2023-12-02 21:48:00 +09:00
trace_point.rb [DOC] Adjust some new features wording/examples. (#9183) 2023-12-14 23:01:48 +02:00
transcode.c Free everything at shutdown 2023-12-07 15:52:35 -05:00
transcode_data.h Expand tabs [ci skip] 2022-07-21 09:42:04 -07:00
universal_parser.c Fix memory leak when parsing invalid hash symbol 2024-02-13 11:05:56 -05:00
util.c Remove duplicate `#include <string.h>` [ci skip] 2023-08-27 23:21:20 +09:00
variable.c Do not show an anonymous class as a receiver 2024-02-15 20:43:11 +09:00
variable.h Free everything at shutdown 2023-12-07 15:52:35 -05:00
vcpkg.json `vcpkg x-update-baseline` for updating baseline commit hash uses 2-spaces indent 2024-01-26 17:46:39 +09:00
version.c Introduce --parser runtime flag 2023-12-15 13:42:19 -05:00
version.h Allow changing RUBY_PATCHLEVEL_STR if RUBY_PATCHLEVEL == -1 (#8578) 2023-10-03 09:19:54 -07:00
vm.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
vm_args.c Avoid allocation when passing no keywords to anonymous kwrest methods 2024-02-13 11:05:26 -05:00
vm_backtrace.c Do not show an anonymous class as a receiver 2024-02-15 20:43:11 +09:00
vm_callinfo.h Add VM_CALL_ARGS_SPLAT_MUT callinfo flag 2024-01-24 18:25:55 -08:00
vm_core.h Show actual imemo type when unexpected type 2024-02-08 18:08:42 +09:00
vm_debug.h Add ruby_debug_print functions to vm_debug.h 2024-01-06 09:32:45 +09:00
vm_dump.c windows-arm64 support (#8995) 2023-11-23 17:17:28 +09:00
vm_eval.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
vm_exec.c RJIT: Correct the macro that defines rb_vm_insns_count 2023-12-19 00:06:21 -08:00
vm_exec.h Use `UNDEF_P` 2024-01-30 14:48:59 +09:00
vm_insnhelper.c YJIT: Prefer an overloaded cme if available (#9913) 2024-02-12 12:56:44 -05:00
vm_insnhelper.h RJIT: Share rb_vm_insns_count for vm_insns_count 2023-12-18 23:55:40 -08:00
vm_method.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
vm_opts.h Clean up OPT_STACK_CACHING (#8132) 2023-07-27 17:27:05 -07:00
vm_sync.c M:N thread scheduler for Ractors 2023-10-12 14:47:01 +09:00
vm_sync.h `USE_RUBY_DEBUG_LOG` doesn't check `RUBY_DEVEL` 2021-12-29 00:22:02 +09:00
vm_trace.c Do not include a backtick in error messages and backtraces 2024-02-15 18:42:31 +09:00
vsnprintf.c Use free with ruby_dtoa 2023-12-07 09:23:02 -08:00
warning.rb [DOC] [Bug #19290] fix formatting 2023-01-01 14:50:39 +09:00
weakmap.c Remove duplicated include in weakmap.c 2024-02-14 15:37:53 -05:00
yjit.c YJIT: Pass nil to anonymous kwrest when empty (#9972) 2024-02-15 11:59:37 -05:00
yjit.h YJIT: Always define method codegen table at boot (#8807) 2023-11-02 09:15:48 -07:00
yjit.rb YJIT: Adjust the padding size of counts automatically (#9912) 2024-02-12 11:56:24 -05:00

README.md

Actions Status: MinGW Actions Status: RJIT Actions Status: Ubuntu Actions Status: Windows AppVeyor status 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