=Introduction= The GF Resource Grammar Library is the standard library for Grammatical Framework. It covers the morphology and basic syntax of currently 16 languages. This document contains the most important parts of the GF Resource Grammar API, as needed by a GF application programmer. It has been machine-generated from the source files; there are links to the relevant source files, which give more information. Some of the files have not yet been prepared so that the machine generated documentation has the nicest possible format. The main contents are: - [Chapter 1 #toc2]: categories, with links to the functions for constructing trees in them. - [Chapter 2 #toc5]: syntactic construction functions, with cross-links and examples. - [Chapter 3 #toc83]: morphological paradigms. - [Chapter 4 #toc100]: how to "browse" the library by loading the grammars into the ``gf`` command editor. - [Chapter 5 #toc101]: a brief example of how application grammars can use the resource modules. - [Detailed table of contents #toc102]. Many examples in [Chapter 2 #toc5] can be seen in multiple languages by hovering the mouse over the example, as shown in the following screenshot: [hovering.png] Other relevant documents: - [``status.html`` ./status.html]: the current status of different languages and the authors of each grammar - [Resource Grammar Tutorial http://www.grammaticalframework.org/doc/gf-lrec-2010.pdf] as presented in LREC-2010. - Paper "The GF Resource Grammar Library" by A. Ranta (//Linguistic Issues in Language Technology//, 2 (2), 2009). An overview of the library with linguistic motivations. [PDF http://elanguage.net/journals/index.php/lilt/article/viewFile/214/158] - Paper "Grammars as Software Libraries" by A. Ranta (In Y. Bertot, G. Huet, J-J. Lévy, and G. Plotkin (eds.), //From Semantics to Computer Science//, Cambridge University Press, Cambridge, pp. 281--308, 2009). The library from a software engineering point of view. [PDF http://www.cse.chalmers.se/~aarne/old/articles/libraries-kahn.pdf]