REMAIN

    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).