77 lines
2.6 KiB
Org Mode
77 lines
2.6 KiB
Org Mode
#+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:../index.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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