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## Copyright (C) 2024 David Legland
## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are met:
##
## 1 Redistributions of source code must retain the above copyright notice,
## this list of conditions and the following disclaimer.
## 2 Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in the
## documentation and/or other materials provided with the distribution.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS''
## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
## SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
## CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##
## The views and conclusions contained in the software and documentation are
## those of the authors and should not be interpreted as representing official
## policies, either expressed or implied, of the copyright holders.
function progressbar(n,N,w)
%PROGRESSBAR Display a progress bar.
%
% progressbar(n,N,w);
% Displays the progress of n out of N. n should start at 1. w is the
% width of the bar (default w=20).
%
% ------
% Author: Gabriel Peyré
% E-mail: gabriel.peyre@ens.fr
% Created: 2006
% Copyright 2006-2023
if nargin<3
w = 20;
end
% progress char
cprog = '.';
cprog1 = '*';
% begining char
cbeg = '[';
% ending char
cend = ']';
p = min( floor(n/N*(w+1)), w);
global pprev;
if isempty(pprev)
pprev = -1;
end
if not(p==pprev)
ps = repmat(cprog, [1 w]);
ps(1:p) = cprog1;
ps = [cbeg ps cend];
if n>1
% clear previous string
fprintf( repmat('\b', [1 length(ps)]) );
end
fprintf(ps);
end
pprev = p;
if n==N
fprintf('\n');
end
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