Mostly written in PHP
License: Bitstream_Vera_Fonts_Copyright, CC-BY-NC-SA-2-0-deleted, GPL-1-0plus, unicode
Mostly written in C++
License: Commercial, GNU_Free_Documentation_License, gpl3, lgpl21
Mostly written in Perl
License: Arev_Fonts_Copyright, Bitstream_Vera_Fonts_Copyright