Mostly written in C++
License: Initial_Developers_PUBLIC_LICENSE_Version_1_0, InterBase_Public_License
Mostly written in C
Mostly written in Python
License: python_software_foundation
Mostly written in C
License: mozilla_public_2_0
Mostly written in Perl
License: Artistic_License_2_0, GNU_General_Public_License_1_0, gpl