Yukihiro Matsumoto

まつもと ゆきひろ (Japanese)

Yukihiro Matsumoto in 2018.

Born|  (1965-04-14) 14 April 1965 (age 61)

Osaka Prefecture, Japan

Other names| Matz
Education| University of Tsukuba (BS)
Shimane University
Occupation| Computer scientist, programmer, author
Known for| Ruby
Children| 4
Matsumoto giving the keynote speech at EuRuKo 2011 Matsumoto accepting an award from the Free Software Foundation (founder Richard Stallman, right) in 2012

Yukihiro Matsumoto (まつもとゆきひろ, Matsumoto Yukihiro; born 14 April 1965), also known as Matz, is a Japanese computer scientist and software programmer. He is best known as the chief designer of the Ruby programming language and its original reference implementation, Matz's Ruby Interpreter (MRI).

As of 2011[update], Matsumoto is the Chief Architect of Ruby at Heroku, an online cloud platform-as-a-service in San Francisco.[needs update] He is a fellow of the Rakuten Institute of Technology, a research and development organization within Rakuten Group, Inc. He was appointed to the role of technical advisor for VASILY, Inc. starting in June 2014.[1]

## Contents

* 1 Early life
* 2 Work
* 2.1 Ruby
* 2.2 mruby
* 2.3 streem
* 2.4 Treasure Data
* 3 Written works
* 4 Recognition
* 5 Personal life
* 6 See also
* 7 References
* 8 External links

## Early life

Born in Osaka Prefecture, Japan, he was raised in Tottori from the age of four. According to an interview conducted by Japan Inc., he was a self-taught programmer until the end of high school.[2] He graduated with an information science degree from University of Tsukuba where he was a member of Ikuo Nakata's research lab on programming languages and compilers.

## Work

He works for the Japanese open source company Netlab.jp. Matsumoto is known as one of the open-source evangelists in Japan. He has released several open source products, including cmail, the Emacs-based mail user agent, written entirely in Emacs Lisp. Ruby is his first piece of software that became known outside Japan.[3]

### Ruby

Matsumoto released the first version of the Ruby programming language on 21 December 1995.[4][5] He still leads the development of the language's reference implementation, MRI (Matz's Ruby Interpreter).

### mruby

In April 2012, Matsumoto open sourced his work on a new implementation of Ruby called mruby.[6][7] It is a minimal implementation based on his virtual machine, ritevm, and is designed to allow software developers to embed Ruby in other programs while keeping memory footprint small and performance optimized.

### streem

In December 2014, Matsumoto open sourced his work on a new scripting language called streem, a concurrent language based on a programming model similar to shell, with influences from Ruby, Erlang, and other functional programming languages.[8]

### Treasure Data

Matsumoto has been listed as an investor for Treasure Data; many of the company's programs such as Fluentd use Ruby as their primary language.[9]

## Written works

* オブジェクト指向スクリプト言語 Ruby ISBN 4-756-13254-5
* Ruby in a Nutshell ISBN 0-596-00214-9
* The Ruby Programming Language ISBN 0-596-51617-7

## Recognition

Matsumoto received the 2011 Award for the Advancement of Free Software from the Free Software Foundation (FSF) at the 2012 LibrePlanet conference at the University of Massachusetts Boston in Boston.[10]

Matz' demeanor has brought about a motto in the Ruby community: "Matz is nice and so we are nice," commonly abbreviated as MINASWAN.[citation needed]

## Personal life

Matsumoto is married and has four children. He is a member of the Church of Jesus Christ of Latter-day Saints,[11] having performed standard missionary service and become a counselor in the bishopric in his church ward.[12]

## See also

* Ruby (programming language)
* Ruby MRI
* Ruby on Rails

## References

1. ↑ "PRESSRELEASE – 株式会社VASILY(ヴァシリー)". vasily.jp. http://vasily.jp/category/press/.
2. ↑ "The Man Who Gave Us Ruby". japaninc.com. 8 November 2006. http://www.japaninc.com/article.php?articleID=828.
3. ↑ "Yukihiro Matsumoto". O’Reilly. 1 February 2013. http://www.oreilly.com/pub/au/714.
4. ↑ More archeolinguistics: unearthing proto-Ruby
5. ↑ "[ruby-talk:00382] Re: history of ruby". nagaokaut.ac.jp. http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/382.
6. ↑ "mruby: Lightweight Ruby". 2 November 2017. https://github.com/mruby/mruby.
7. ↑ Matt Aimonetti (20 April 2012). "mruby and MobiRuby – Matt Aimonetti". aimonetti.net. http://matt.aimonetti.net/posts/2012/04/20/mruby-and-mobiruby/.
8. ↑ "matz/streem". GitHub. https://github.com/matz/streem.
9. ↑ "Company – Treasure Data". http://www.treasuredata.com/company.
10. ↑ "2011 Free Software Awards announced". Free Software Foundation. 26 March 2012. http://www.fsf.org/news/2011-free-software-awards-announced.
11. ↑ "Hi I'm まつもとゆきひろ (Matsumoto "Matz" Yukihiro)". mormon.org. https://www.mormon.org/matz. "I am a computer programmer. I designed a programming language called 'Ruby.' I am a Mormon."
12. ↑ "Colloquium--Yukihiro Matsumoto". https://cs.byu.edu/article/colloquium-yukihiro-matsumoto.

## External links

* Matz's web diary (and translated to English with Google Translate) Script error: The function "in_lang" does not exist.
* Ruby Design Principles talk from IT Conversations
* The Ruby Programming Language – An introduction to the language by its own author
* Treating Code as an Essay – Matz's writeup for the book Beautiful Code, edited by Andy Oram, Greg Wilson, O'Reilly, 2007. ISBN 0-596-51004-7 ISBN 9780596510046

* v
* t
* e

Ruby programming language

Implementations|

| Active|

* Ruby MRI; YARV
* mruby
* JRuby
* Rubinius
* MagLev
* RubyMotion

|

Discontinued|

* MacRuby
* IronRuby
* XRuby
* HotRuby

IDE|

* Komodo
* NetBeans
* RadRails
* RubyMine

Applications|

* Capistrano
* Hackety Hack
* Interactive Ruby Shell
* Pry
* Rake
* Redmine
* RSpec
* RubyGems
* RVM
* Chef
* Puppet
* Vagrant
* Homebrew
* CocoaPods
* fastlane (mobile app build automation tools)

Libraries and frameworks|

* Adhearsion
* Camping
* eRuby (RHTML)
* Merb
* Padrino
* RubyCocoa
* Ruby on Rails
* Shoes
* Sinatra
* QtRuby

Server software|

* mod ruby
* Mongrel
* Phusion Passenger (mod_rails/mod_rack)
* Rack
* WEBrick

People|

* Yukihiro Matsumoto
* David Heinemeier Hansson
* why the lucky stiff

Other|

* Document format
* why's (poignant) Guide to Ruby
* Ruby Central
* RubyKaigi
* RubyForge
* Ruby License

* Category
* Commons

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