Elision

Parts of a program can be elided, that is, printed as `...'. This allows a user to hide details and focus on the high-level structure of a program. The command elision-toggle (menu: View/Elision/Elision Toggle   X: Alt+E   NT: Ctrl+Shift+E) alternately elides or unelides a construct.

Position the structural selection at the 100. Then invoke elision-toggle. This hides the body of the if statement.

Click on the X and invoke elision-toggle again to redisplay the body of the if statement.

Elision is supported for a number of predefined syntactic constructs. For example, the procedure body can be elided.

Move the structural selection to the <identifier> placeholder for the procedure name. Invoke elision-toggle.

To restore the procedure, click on the <identifier> placeholder again and invoke elision-toggle.

Command elision-on (menu: View/Elision/Elide All) elides every construct throughout the program. Command elision-off (menu: View/Elision/Elide None) unelides every construct throughout the program. (Both of these commands override the effects of any previous elision-toggle commands.)