ANTLR 2 License
reserve no legal rights to the ANTLR--it is fully in the public domain. An individual or
company may do whatever they wish with source code distributed with ANTLR or the code
generated by ANTLR, including the incorporation of ANTLR, or its output, into commerical
We encourage users to develop software with ANTLR. However, we do ask that
credit is given to us for developing ANTLR. By "credit", we mean that if you use
ANTLR or incorporate any source code into one of your programs (commercial product,
research project, or otherwise) that you acknowledge this fact somewhere in the
documentation, research report, etc... If you like ANTLR and have developed a nice tool
with the output, please mention that you developed it using ANTLR. In addition, we ask
that the headers remain intact in our source code. As long as these guidelines are kept,
we expect to continue enhancing this system and expect to make other tools available as
they are completed.
In countries where the Public Domain status of the work may not be
valid, the author grants a copyright licence to the general public
to deal in the work without restriction and permission to sublicence
derivates under the terms of any (OSI approved) Open Source licence.
The Python parser generator code under antlr/actions/python/ is
covered by the 3-clause BSD licence (this part is included in the
binary JAR files); the run-time part under lib/python/ is covered
by the GNU GPL, version 3 or later (this part is not included in
the binary JAR files). See here
for the full details.