Published at LXer:

Progopedia is a free (GNU Free Documentation License) web-based encyclopedia of programming languages. The project aims to create an exhaustive list of existing programming languages (including language implementations and versions), to provide structured information about them and to present solutions to a set of standard programming tasks in these languages. The ultimate goal of the project is to be a reliable and useful encyclopedic reference for scholars of different levels and as well for professional seeking information about specific language version differences and features.

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