From: Jurgen Vinju
To:
Date: Fri, 5 Nov 2004 13:09:55 +0100
Subject: PEM: Joost Visser | Sdf2Asdl: Generating abstract syntax from concrete syntax | 17.06.99

 
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Subject: PEM meeting | 17.06.99 | M2.80, CWI 
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   Dear Environmentalists,

   For  a change, next week the PEM will be back at its regular Thursday,
   where it feels most at home. Our speaker will be Joost Visser who will
   discuss his foray into the wonderful world of ASDL.

   (This  message  comes  to  you rather early, because your friendly PEM
   organizer will be away for a couple of days, sorry about that)

   This announcement can be found at <http://www.cwi.nl/~pem>

         Sdf2Asdl: Generating abstract syntax from concrete syntax

   Date:    17.06.99
   Time:    10:00
   Venue:   M2.80, CWI
   Speaker: Joost Visser
   Title:   Sdf2Asdl: Generating abstract syntax from concrete syntax

   Asdl  is a little language for describing (language-specific) abstract
   syntax.  It  comes  with a tool. This tool accepts an Asdl description
   and  generates  data  structure  definitions  in  C, C++, Java, ML, or
   Haskell  representing  the  abstract  syntax  described.  The code for
   creating  and  accessing  the  abstract  syntax  trees, as well as for
   writing  them  to  and  reading  them  from an exchange format is also
   generated.  Hence,  Asdl facilitates the development of interoperating
   language-tools in various programming languages.

   I  have tinkered a tool (code name: Sdf2Asdl) which generates abstract
   syntax  (Asdl)  from concrete syntax (Sdf), and maps concrete terms to
   abstract terms. On the one hand, this tool makes GLR-parsing available
   for all programming languages supported by the Asdl tool. On the other
   hand,  the tool offers Sdf-addicts an alternative to language-specific
   programming in Asf and generic AsFix programming in Java or C (tertium
   datur !).
     _________________________________________________________________

   The  programming environment meetings are a forum for the presentation
   and  discussion  of  new  ideas,  ongoing and finished work. A typical
   meeting  addresses  a subject in the area of programming environments,
   program  generation, algebraic specification, term rewriting, parsing,
   etc.  A presentation ideally takes between 45 and 90 minutes. Meetings
   taking  longer  than 45 minutes are interrupted by a coffeebreak. Most
   Thursdays,  a  meeting is held which starts at 10:00 am. in one of the
   rooms at CWI/WINS. Exceptionally, dates or times may change.

   The    program    of    the    meetings    is    available   on   WWW:
   http://www.cwi.nl/~pem
     _________________________________________________________________