// HelpCommand.h
// Kevin Karplus
// 23 Feb 1996

// This file contains a generic "help" command suitable for including
// in an interactive system based on the Command class.
//
// To make sure it is linked in from the library, call
//	AddHelpCommandTable() from main (or other initialization function).
//
// You can also add an arbitrary function to interpret the help command,
//	in case the first word doesn't match any of tables.
//	Just set UnknownHelpFunction to point to an int function that
//	takes (istream&, const char*, ostream&).


void AddHelpCommandTable(const NameToPtr *table=0, const char* name=0);
// Add a NameToPtr table to the list of tables searched by the Help command.
//	(with no parameters, the Command::command_table() is added,
//	with name "command").

extern int (*UnknownHelpFunction)(istream &in, const char* word,
	ostream&log_file);