gawk: Extension API Description

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1 16.4 API Description
1 ====================
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1 C or C++ code for an extension must include the header file 'gawkapi.h',
1 which declares the functions and defines the data types used to
1 communicate with 'gawk'.  This (rather large) minor node describes the
1 API in detail.
1 

Menu

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· Extension API Functions Introduction Introduction to the API functions.
· General Data Types                   The data types.
· Memory Allocation Functions          Functions for allocating memory.
· Constructor Functions                Functions for creating values.
· Registration Functions               Functions to register things with
1                                          'gawk'.
· Printing Messages                    Functions for printing messages.
· Updating ERRNO                Functions for updating 'ERRNO'.
· Requesting Values                    How to get a value.
· Accessing Parameters                 Functions for accessing parameters.
· Symbol Table Access                  Functions for accessing global
1                                          variables.
· Array Manipulation                   Functions for working with arrays.
· Redirection API                      How to access and manipulate
1                                          redirections.
· Extension API Variables              Variables provided by the API.
· Extension API Boilerplate            Boilerplate code for using the API.
· Changes from API V1                  Changes from V1 of the API.
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