59 lines
1.5 KiB
Scheme
59 lines
1.5 KiB
Scheme
;;
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;; util-stdout.scm
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;;
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;; Output with possibility of complete silencing.
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;;
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;; ISC License
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;;
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;; Copyright 2023 Brmlab, z.s.
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;; Dominik Pantůček <dominik.pantucek@trustica.cz>
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;;
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;; Permission to use, copy, modify, and/or distribute this software
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;; for any purpose with or without fee is hereby granted, provided
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;; that the above copyright notice and this permission notice appear
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;; in all copies.
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;;
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;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
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;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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;;
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(declare (unit util-stdout))
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(module
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util-stdout
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(
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*stdout-quiet*
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stdout-print
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stdout-printf
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stdout-newline
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)
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(import scheme
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(chicken base)
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(chicken format))
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;; If true, all stdout output is suppresed
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(define *stdout-quiet* (make-parameter #f))
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;; Prints to stdout if not quiet
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(define (stdout-print . args)
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(when (not (*stdout-quiet*))
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(apply print args)))
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;; Prints formatted string to stdout if not quiet
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(define (stdout-printf fmt . args)
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(when (not (*stdout-quiet*))
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(print (apply format fmt args))))
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;; Prints newline if not quiet
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(define (stdout-newline)
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(when (not (*stdout-quiet*))
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(newline)))
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)
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