C++ An old one, but the FTGL library (renders truetype fonts in old-school OpenGL in half a dozen different ways: texture-per-letter, texture-per-word, 2D poly

C++ An old one, but the FTGL library (renders truetype fonts in old-school OpenGL in half a dozen different ways: texture-per-letter, texture-per-word, 2D polygons, 3D polygons, etc) is the best example of C++ inheritance I've ever run across. The code formatting isn't my favorite, and comments are sparse, but the hierarchy of objects subclassed for all the different rendering modes is just about perfect. https://sourceforge.net/p/ftgl/code/HEAD/tree/trunk/ https://sourceforge.net/p/ftgl/code/HEAD/tree/trunk/ Perl The Mojolicious / Mojo toolkit. Great minimalist API and great documentation and clean code all around. https://metacpan.org/release/SRI/Mojolicious-9.33/view/lib/Mojolicious.pm https://metacpan.org/release/SRI/Mojolicious-9.33/view/lib/M...