24 lines
701 B
Factor
24 lines
701 B
Factor
! Copyright (C) 2011 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: combinators.short-circuit kernel math math.order
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sequences ;
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IN: progress-bars
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ERROR: invalid-percent x ;
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: check-percent ( x -- x )
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dup 0 1 between? [ invalid-percent ] unless ;
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ERROR: invalid-length x ;
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: check-length ( x -- x )
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dup { [ 0 > ] [ integer? ] } 1&& [ invalid-length ] unless ;
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: (make-progress-bar) ( percent len completed-ch pending-ch -- string )
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[ [ * >integer ] keep over - ] 2dip
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[ <repetition> ] bi-curry@ bi* "" append-as ;
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: make-progress-bar ( percent length -- string )
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[ check-percent ] [ check-length ] bi*
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CHAR: = CHAR: - (make-progress-bar) ;
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