mercury/extras

This directory contains various additional libraries, tools,
and so forth that are not part of the Mercury standard library.

cgi		A couple of Mercury library modules for doing HTML forms
		programming using CGI (Common Gateway Interface).

clpr		A Mercury interface to the CLP(R) constraint solver,
		for solving arithmetic constraints on (floating point)
		real numbers.

complex_numbers
		A Mercury library package containing support for
		complex and imaginary numbers.

dynamic_linking
		An interface to the C functions dlopen(), dlsym(), etc.
		that are supported by most modern Unix systems.

exceptions	A library module containing a (tentative)
		exception handling interface for Mercury.

graphics	A couple of packages for doing graphics programming
		and GUIs in Mercury: a Mercury interface to tcl/tk
		and a Mercury binding to OpenGL.

lazy_evaluation
		A library module `lazy' containing support for optional
		lazy evaluation in Mercury, together with some examples
		of its use, including a module `lazy_list' that defines
		a lazy list data type.

odbc		A Mercury interface to ODBC (Open Database Connectivity),
		for interfacing to standard relational database packages.

references	A library package containing modules for manipulating
		ML-style references (mutable state).