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Mostly written in Postscript
License: gpl
Mostly written in Perl
License: BSD-3-Clause, lgpl
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License: BSD-3-Clause
Mostly written in C++
Mostly written in C
Mostly written in Java
License: Creative_Commons_AttributionShareAlike_2_5-deleted, gpl, lgpl
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License: GPL2
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License: Unknown
License: gpl3_or_later