Returns a pattern matching any string that starts at the current character
position and continues to the end of the current line. The pattern returned does
not cross line boundaries.
Syntax:
pattern := REMAIN
Example:
PATTERN$RUNOFF := LINE_BEGIN + "." + REMAIN;
Stores in the variable PATTERN$RUNOFF a pattern matching all lines that have a
period at the beginning of the line (such as RUNOFF commands).
REMAIN