Added a routine to test if a file exist.
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19c46dba55
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function a = isfile(b)
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%@info:
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%! @deftypefn {Function File} {@var{a} =} isfile (@var{b})
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%! @anchor{isfile}
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%! @sp 1
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%! Test if @var{b} is a file.
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%! @sp 2
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%! @strong{Inputs}
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%! @sp 1
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%! @table @var
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%! @item b
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%! A matlab/octave string.
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%! @end table
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%! @sp 2
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%! @strong{Outputs}
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%! @sp 1
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%! @table @var
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%! @item a
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%! Integer scalar, equal to 1 if @var{b} is a file, zero otherwise.
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%! @end table
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%! @sp 2
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%! @strong{This function is called by:}
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%! @sp 2
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%! @strong{This function calls:}
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%! @sp 2
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%! @end deftypefn
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%@eod:
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% Copyright (C) 2012 Dynare Team
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% stephane DOT adjemian AT ens DOT fr
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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[base,ext] = strtok(b,'.');
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if isempty(ext)
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% File has no extension.
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[status, c] = fileattrib(b);
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if status
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a = ~c.directory;
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else
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a = 0;
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end
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else
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a = isequal(exist(b,'file'),2);
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end
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