Conventions

The general conventions between Smac and Xcoral are the following:

• The windows are numbered  from 0 to 31. Each window receives a constant number. When you kill a window its number will be reused by a future window creation. See current\_window() function (see §7.3.9 page ).

• The current window , is the window pointed at by the mouse, therefore the current edited window. All functions refer to the current window except those for selecting (see select\_window() §7.3.9 page ) or killing a window (see kill\_window() §7.3.9 page ).

• The first  character in a window is numbered 0 (see current\_position() §7.3.1 page , goto\_char() §7.3.2 page and the\_char() §7.3.3 page ). This number is incremented for each following character (including newline) up to the end of the buffer.

• The  first line in a window is numbered 0 (see goto\_line() §7.3.2 page and current\_line() §7.3.1 page ).

• In most cases there is no window redisplay during Smac execution. Necessary redisplays are made when Smac execution ends and Xcoral recovers control, or when you call the redisplay function (see §7.3.8 page ).