Nonvirtual member functions

• int num_commands(void) - the number of words which this object understands as the first word in a command.
• char *word(int) - the Nth word that this object understands as the first word in a command.
• void add_command(char *, TextCallback *) - adds a new word to the UIText vocabulary, and registers the given function as the callback for that word. If the word is already known, this does nothing.
• int process_command(int argc, char **argv) - given a tokenized text command (one that has been broken up into `argc' individual words, with the words in the `argv' array), this routine checks the first word to see if it is understood, and calls the proper callback function or prints an error message.
• void read_from_file(char *) - instructs this object to read text commands from the given file until the end-of-file is reached.
• void wait(float) - instructs this object to wait for the given number of seconds before attempting to read in the next text command.
• int echo(void) - returns the current echoing status.
• void echo(int yn) - turns on/off echoing of text commands.