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txt.echo
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2007-03-01
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778b
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49 lines
╙┼╠┼├╘ "╠╨: & ─╙:"
BY ─ICK ╦LINGENS
─UTCH ├╧═┴╠ ╒SERS ╟ROUP
╙OME OPERATING SYSTEMS ALLOW THE
PROGRAM USER TO DIRECT SCREEN OUTPUT
OF A PROGRAM ALSO TO THE PRINTER.
┘OU CAN DO THIS IN ├╧═┴╠ BY SOME
PROCEDURES TOO.
╨╥╧├ PR'NUM(X)
╙┼╠┼├╘ "LP:"
╨╥╔╬╘ X
╙┼╠┼├╘ "DS:"
╨╥╔╬╘ X
┼╬─╨╥╧├ PR'NUM
╨╥╧├ PR'STR(X$)
╙┼╠┼├╘ "LP:"
╨╥╔╬╘ X$
╙┼╠┼├╘ "DS:"
╨╥╔╬╘ X
┼╬─╨╥╧├ PR'STR
╫E DEVELOPED A PACKAGE THAT ECHOES
ALL PRINTER OUTPUT IN A ╨╥╔╬╘
STATEMENT ON THE SCREEN.
╔ ILLUSTRATE THE PACKAGE WITH THE
FOLLOWING PROGRAM:
╒╙┼ ECHO
SETECHO(╘╥╒┼) // ECHO ON
╙┼╠┼├╘ ╧╒╘╨╒╘ "LP:"
╞╧╥ T:=1 ╘╧ 3 ─╧
// NOW DOUBLE PRINT
╨╥╔╬╘ "╘HIS IS THE ",T,". LINE"
┼╬─╞╧╥ T
╙┼╠┼├╘ ╧╒╘╨╒╘ "DS:"
╨╥╔╬╘ "╥EADY" // ONLY ON THE SCREEN
SETECHO(╞┴╠╙┼) // ECHO OFF
┼╬─ ""
┴N OTHER EXAMPLE IS ON THE DISK.