- The user can edit whatever has been entered since the beginning of the
current syntactic object,
in response to a syntax error message, or if the user wants to change
something previously typed.
If you prefer to start again,
``
!clear
'' will clear the typing buffer and allow you to start the
input afresh.
- When the editor is invoked
(by typing ``
!edit
''), the user is prompted for the string that is to
be modified. The user types the desired string, and the editor finds its
first occurrence in the lines being edited.
- The user is then prompted for the replacement of this string. When it is
entered, the change is made.
- The process repeats until the user enters a blank search line,
at which time control is returned to ISETL.