Selecting a Topic in Text

When a text section is displayed, you can select a new topic by pointing to a word and clicking the left mouse button. That word will then be highlighted. If you click again on the highlighted word then it is sent to Prolog via help/1. It is the same as entering the topic through index... dialogue in the Goto pulldown menu.

A recognized topic is a word in the form of [A-Z a-z][A-Z a-z 0-9_-]* possibly followed by a slash preceding an arity specification such as /1 and /[1,2]. Words consisting of non-alphanumeric characters such as @> will not be recognized.