ERASE START OF LINE

 Erases text, starting with the character to the left of the cursor, until
 the start of the line.

 o  The cursor and the rest of the line (if any) move left.

 o  If you are already at the start of a line, nothing is erased.

 o  To put back what you erased, use RESTORE LINE.

 Keys:  EVE defines CTRL/U and CTRL/DELETE as ERASE START OF LINE.  The EDT
        keypad redefines these keys to delete to the start of the line or
        if already at the start, delete the previous line.

 Related topics:

    ERASE LINE   ERASE PREVIOUS WORD   RESTORE   RESTORE LINE