Amber Smalltalk
Amber Smalltalk, formerly known as Jtalk, is an implementation of the Smalltalk-80 language that runs on the JavaScript runtime of a web browser. It is designed to enable client-side development using the Smalltalk programming language.[1]
Amber includes an integrated development environment with a class browser, workspace, transcript, object inspector and debugger. Amber is written in itself, including the parser and compiler, and compiles into JavaScript, mapping one-to-one with the JavaScript equivalent. Amber was created by Nicolas Petton.[2]
Amber was influenced by an earlier Smalltalk in browser project, called "Clamato", created by Avi Bryant.[2][3] Both Amber and Clamato use Parsing Expression Grammar (PEG) libraries for parsing Smalltalk sourcecode. Amber uses the JavaScript based PEG.js library [4][5] written by David Majda and Clamato uses PetitParser, a Smalltalk based library written by Lukas Renggli.[2] Both Clamato and Amber were influenced by earlier work by Dan Ingalls in developing the Lively Kernel implementation of Morphic in the web browser using JavaScript.[2][6]
References [edit]
- ^ Smalltalk Implementations (brief comparative summaries describing Smalltalk dialects)
- ^ a b c d Schuster, Werner (August 22, 2011). "Smalltalk IDEs Come to the Browser: Jtalk, tODE, Lively Kernel 2.0". Retrieved October 20, 2011.
- ^ "Clamato". (Home page for the Clamato Smalltalk project)
- ^ "PEG.js". (Home page for the PEG.js JavaScript parser generator project)
- ^ "Amber 0.9 Announcement". (Announcement email of Amber 0.9 includes switch to PEG.js)
- ^ Shuster, Werner (June 22, 2010). "Dan Ingalls on the History of Smalltalk and the Lively Kernel". Retrieved October 26, 2011.
External links [edit]
- amber-lang.net The Amber Smalltalk project's official site
- Jtalk, the Smalltalk for Web developers Nicolas Petton, slides presented at ESUG 2011 (European Smalltalk User Group Conference). Edinburgh, Scotland, UK. (August, 2011)
- Amber Smalltalk project GitHub page
