The libcommon project is an API implementation in order to respond to general development needs for softwares written in C. This library gives to the developer some utility functions like advanced getopt management, an extra strings treatments function, debugging and tracing functions, and macros for generic lists support. Its goal is to avoid constant re-implementation of the same things for each new program. The libcommon API has been implemented in order to be multi-platform (compatible with i386, ia64, PPC, MIPS, and MIPS 64), hardened (high-level compilation restrictions and implementation requirements), and as few libc dependencies as possible.
Flouncy is a library that helps developers to write fluent APIs in PHP. More precisely, it's a library that helps developers to implement the Interpreter pattern by using method chaining and capture of field/method names to record a set of tokens, which can then be parsed into a data structure or useful object.
The ReportLab Toolkit is a library for programatically creating documents in PDF format. It can quickly and easily create or automate complex, data-driven documents. It features a real document layout engine, flowable objects (such as paragraphs, headlines, tables, images, and graphics), support for embedded Type-1 or TTF fonts, support for Asian, Hebrew, and Arabic characters, support for bitmap images in any popular format, support for vector graphics, a library of reusable primitive shapes, and an extensible widget library. It includes simple demos and more complex tools. It allows for any data sources.