Roberto Ierusalimschy

Roberto Ierusalimschy (Brazilian Portuguese: [ʁoˈbɛʁtu jeɾuzaˈlĩski]; born 21 May 1960) is a Brazilian computer scientist, known for creating the Lua programming language. He holds a PhD in computer science from the Pontifical Catholic University of Rio de Janeiro where he has an appointment as a full professor of informatics. He did a post-doc at University of Waterloo in 1992^{[citation needed]} and was visiting professor at Stanford University in 2012.^[1] He is the leading architect and the author of Programming in Lua.^[2] He also created LPeg, a Lua library for implementing parsing expression grammars.^[3]

Roberto Ierusalimschy
Ierusalimschy speaking at Lua conference in Moscow, 2017
Born	(1960-05-21) 21 May 1960 (age 64) Brazil
Education	Pontifical Catholic University of Rio de Janeiro (PUC-Rio)
Known for	Lua
Scientific career
Fields	Computer Science Programming Languages
Institutions	Pontifical Catholic University of Rio de Janeiro (PUC-Rio)
Thesis	O=M : uma linguagem orientada a objetos para desenvolvimento rigoroso de programas (in Portuguese) (1990)
Doctoral advisor	Carlos José Pereira de Lucena

In 2021, Roberto created Building a Programming Language, a project-based learning program where students learn how to build a programming language from scratch.