parsing-upec: Add.
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Sergiu Ivanov
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@ -69,7 +69,7 @@ Jump to:
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- [[file:togit.org][To Git or Not to Git]]
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- [[file:h4life.org][Haskell for Life]]
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- [[file:os-upec.org][operating systems and networks]]
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- basic parsing
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- [[file:parsing-upec.org][basic parsing]]
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#+ATTR_HTML: :alt image of Creative Commons Attribution Alone licence :class ccby
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[[https://en.wikipedia.org/wiki/Creative_Commons_license][file:../content/imgs/ccby.png]]
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@ -0,0 +1,77 @@
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#+TITLE: Basic Parsing
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#+LANGUAGE: en
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#+ATTR_HTML: :alt in French :class lang-lifted
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[[file:../fr/parsing-upec.org][file:../content/imgs/fr.png]]
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#+ATTR_HTML: :alt return home :class home
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[[file:home.org][file:../content/imgs/home.png]]
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I taught the part of a course on formal languages which was related to
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the [[http://en.wikipedia.org/wiki/Chomsky%2520hierarchy][Chomsky hierarchy]] and [[http://en.wikipedia.org/wiki/Parsing][parsing]].
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#+ATTR_HTML: :alt image of Creative Commons Attribution Alone licence :class ccby
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[[https://en.wikipedia.org/wiki/Creative_Commons_license][file:../content/imgs/ccby.png]]
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The materials of my course are distributed under the [[https://en.wikipedia.org/wiki/Creative_Commons_license][Creative Commons
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Attribution Alone licence]].
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* Slides
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The slides for this course are available [[file:../content/courses/parsing-upec/parsing.pdf][here]] (in French).
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* Practical assignment
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The exercises for the practical assignment (in French) can be
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downloaded [[file:../content/courses/parsing-upec/parsing-tp.pdf][here]].
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* Source code
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In this course I show a simple interpreter for a language of
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variable assignments. The variables can either be strings or integer
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numbers. A program in this language may look as follows:
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#+BEGIN_SRC
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String var1 = "hello world 1 + 2";
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int var2 = 1 - (2 + 3);
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int var3 = 4 + var2;
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#+END_SRC
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[[file:../content/courses/parsing-upec/parsing.zip][This archive]] contains the complete source code of the interpreter as
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well as several example programs.
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To build the project, run the following commands:
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#+BEGIN_SRC
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jflex arith.flex
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jacc arith.jacc
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javac ArithEval.java
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#+END_SRC
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The following command runs just the scanner on the first example:
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#+BEGIN_SRC
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java Yylex examples/example1.duck
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#+END_SRC
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The following command runs the interpreter on the first example:
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#+BEGIN_SRC
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java ArithEval examples/example1.duck
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#+END_SRC
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* Toolchain
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The project relies on [[http://jflex.de/download.html][JFlex]] scanner generator and [[http://web.cecs.pdx.edu/~mpj/jacc/][Jacc]] parser
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generator. Both tools generate Java code. [[file:../content/courses/parsing-upec/parsing-workflow.pdf][Here]] is a short overview
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of a typical workflow.
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This toolchain was suggested by [[http://lacl.univ-paris12.fr/gava/actuel.htm][Frédéric Gava]] (section Parsing de
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fichiers en Java). This page also contains other slides about
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parsing.
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* Local Variables :noexport:
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# Local Variables:
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# org-link-file-path-type: relative
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# eval: (auto-fill-mode)
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# ispell-local-dictionary: "en"
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# End:
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@ -72,7 +72,7 @@ Liens rapides :
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- [[file:togit.org][To Git or Not to Git]]
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- [[file:h4life.org][Haskell for Life]]
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- [[file:os-upec.org][introduction au systèmes d'exploitation et réseaux]]
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- bases de l'analyse syntaxique
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- [[file:parsing-upec.org][bases de l'analyse syntaxique]]
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#+ATTR_HTML: :alt image de la licence Creative Commons Attribution Alone :class ccby
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[[https://fr.wikipedia.org/wiki/Licence_Creative_Commons][file:../content/imgs/ccby.png]]
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@ -0,0 +1,78 @@
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#+TITLE: Analyse syntaxique
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#+LANGUAGE: fr
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#+ATTR_HTML: :alt en anglais :class lang-lifted
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[[file:../en/parsing-upec.org][file:../content/imgs/en.png]]
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#+ATTR_HTML: :alt return home :class home
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[[file:home.org][file:../content/imgs/home.png]]
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J'ai assuré la partie d'un cours sur la théorie des langages formels
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portant sur la [[https://fr.wikipedia.org/wiki/Hi%25C3%25A9rarchie_de_Chomsky][hiérarchie de Chomsky]] et sur l'[[https://fr.wikipedia.org/wiki/Analyse_syntaxique][analyse syntaxique]].
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#+ATTR_HTML: :alt image de la licence Creative Commons Attribution Alone :class ccby
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[[https://fr.wikipedia.org/wiki/Licence_Creative_Commons][file:../content/imgs/ccby.png]]
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Mes supports de cours sont distribués sous la [[https://fr.wikipedia.org/wiki/Licence_Creative_Commons][licence Creative Commons
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Paternité]].
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* Diapositives
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Les diapositives sont disponibles [[file:../content/courses/parsing-upec/parsing.pdf][ici]].
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* Travaux Pratiques
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L'énonce du TP est disponible [[file:../content/courses/parsing-upec/parsing-tp.pdf][ici]].
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* Exemples de code
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Dans ce cours nous développons un interpréteur pour un langage
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simple d'affectations de variables de types nombre entier ou chaîne
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de caractère. Un programme dans ce langage a la forme suivante :
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#+BEGIN_SRC
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String var1 = "hello world 1 + 2";
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int var2 = 1 - (2 + 3);
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int var3 = 4 + var2;
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#+END_SRC
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Le code source ainsi que quelques exemples sont inclus dans [[file:../content/courses/parsing-upec/parsing.zip][cette
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archive]].
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Pour tout compiler, il faut effectuer la séquence d'actions
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suivante :
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#+BEGIN_SRC
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jflex arith.flex
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jacc arith.jacc
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javac ArithEval.java
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#+END_SRC
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La commande suivante lance uniquement le scanner sur le premier
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exemple :
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#+BEGIN_SRC
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java Yylex examples/example1.duck
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#+END_SRC
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La commande suivante lance l'interpréteur sur le premier exemple :
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#+BEGIN_SRC
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java ArithEval examples/example1.duck
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#+END_SRC
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* Outils
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Nous utilisons le générateur de scanners [[http://jflex.de/download.html][JFlex]] et le générateur
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d'analyseurs [[http://web.cecs.pdx.edu/~mpj/jacc/][Jacc]]. Les deux outils génèrent du code Java. [[file:../content/courses/parsing-upec/parsing-workflow.pdf][Voici]] une
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présentation courte de la façon dont JFlex et Jacc sont utilisés.
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Ce choix d'outils a été proposé par [[http://lacl.univ-paris12.fr/gava/actuel.htm][Frédéric Gava]] (section Parsing
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de fichiers en Java). Cette page contient également d'autres
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diapositives au sujet de l'analyse syntaxique.
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* Local Variables :noexport:
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# Local Variables:
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# org-link-file-path-type: relative
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# eval: (auto-fill-mode)
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# ispell-local-dictionary: "fr"
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# End:
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