Archetypes is a framework for developing new content types in Plone. The power of Archetypes is first in automatically generating forms, second in providing a library of stock field types, form widgets, and field validators, third in easily integrating custom fields, widgets, and validators, and fourth in automating transformations of rich content.
pg_collkey is a wrapper to use the collation functions of the ICU library with a PostgreSQL database server. Using this wrapper, you can specify the desired locale for sorting UTF-8 strings directly in the SQL query, rather than setting it during database installation. Default Unicode collation (DUCET) is supported. You can select whether punctuation should be a primary collation attribute or not. The level of comparison can be limited (in order to ignore accents, for example). Numeric sequences of strings can be recognized, so that 'test2' sorts before 'test10'. This library is dependent on ICU.
FastFormat is a C/C++ output and formatting library whose design parameters are complete type-safety, efficiency, genericity, and extensibility. It is simple to use and extend, highly portable (to any platform or compiler), and it upholds the C tradition of you only pay for what you use. FastFormat supports output and formatting of statements of arbitrary complexity, consisting of heterogeneous types. FastFormat writes to output "sinks", which can be of arbitrary type.
Libpointmatcher is a modular "Iterative Closest Point" library, useful for robotics and computer vision. This library is designed with modularity and performance in mind. It provides building blocks to construct various ICP chains often seen in research. These chains can be tuned without any recompilation, and new modules can be added without modifying the core of the library.