Node:Messages and Queries, Next:Coroutining, Previous:All Solutions, Up:Built Intro

Messages and Queries

This section describes the two main aspects of user interaction, displaying messages and querying the user. We will deal with these two issues in turn.

• Message Processing: Message Processing
• Message Handling Predicates: Message Handling Predicates
• Query Processing: Query Processing
• Query Handling Predicates: Query Handling Predicates