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Aurochs, a parser generator.
Copyright (C)2007-2009 Exalead SA
Author: Berke Durak
1) You can try aurochs on-line at
2) You need Objective Caml 3.10 or later. See
On Debian-like systems:
apt-get install ocaml-nox
3) You also need the usual development tools (GNU Make, C compiler).
4) make (or gmake)
5) Typing
sudo make PREFIX=/usr/local install
will install the aurochs binary in /usr/local/bin and the Ocaml
libraries in the Ocaml installation directory, as determined
ocamlc -where.
6) You can also use ./aurochs_tool.native if you do not want to install
1) There are some grammars in examples/. You can parse them using
Aurochs right away:
aurochs -parse examples/test.markup examples/markup.peg
Aurochs will print an XML-like representation of the parse tree.
This is how you develop your grammar.
2) Once your grammar is OK, you generally use Aurochs to save the resulting
automaton into a binary file. The command
aurochs -target nog examples/markup.peg
will create a file markup.nog
3) You can parse a file using that NOG file:
aurochs -parse examples/test.markup examples/markup.peg -load-nog markup.nog
4) There is an example C program in c/test/test_nog which does the same thing.
_build/c/test/test_nog markup.nog examples/markup.peg
5) There are Ocaml examples in examples/calculator and examples/cgi-bin.
6) There is a Java example in java/. Ensure you have Java 1.6 handy and type "make test" there.
For Java 1.5, comment out the "@SuppressWarnings" annotation in java/fr/aurochs/
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