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annotate scripts/pkg/private/fix_depends.m @ 17295:011e5d67baf1

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interpft.m: Widen tolerance on tests to allow for FFT error * scripts/general/interpft.m: Widen tolerance on tests to allow for error in FFT routines, for example when not linking with FFTW.
author Mike Miller <mtmiller@ieee.org>
date Tue, 20 Aug 2013 09:46:17 -0400
parents 89acf2cd9149
children
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1 ## Copyright (C) 2005-2012 Søren Hauberg
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2 ## Copyright (C) 2010 VZLU Prague, a.s.
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {@var{deps_cell} =} fix_depends (@var{depends})
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22 ## Undocumented internal function.
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23 ## @end deftypefn
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24
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25 ## Make sure the depends field is of the right format.
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26 ## This function returns a cell of structures with the following fields:
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27 ## package, version, operator
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28 function deps_cell = fix_depends (depends)
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29 deps = strtrim (ostrsplit (tolower (depends), ","));
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30 deps_cell = cell (1, length (deps));
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31 dep_pat = ...
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32 '\s*(?<name>\w+)+\s*(\(\s*(?<op>[<>=]+)\s*(?<ver>\d+\.\d+(\.\d+)*)\s*\))*\s*';
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33
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34 ## For each dependency.
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35 for i = 1:length (deps)
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36 dep = deps{i};
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37 [start, nm] = regexp (dep, dep_pat, 'start', 'names');
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38 ## Is the dependency specified
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39 ## in the correct format?
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40 if (! isempty (start))
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41 package = tolower (strtrim (nm.name));
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42 ## Does the dependency specify a version
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43 ## Example: package(>= version).
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44 if (! isempty (nm.ver))
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45 operator = nm.op;
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46 if (! any (strcmp (operator, {">", ">=", "<=", "<", "=="})))
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47 error ("unsupported operator: %s", operator);
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48 endif
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49 version = fix_version (nm.ver);
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50 ## If no version is specified for the dependency
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51 ## we say that the version should be greater than
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52 ## or equal to "0.0.0".
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53 else
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54 package = tolower (strtrim (dep));
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55 operator = ">=";
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56 version = "0.0.0";
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57 endif
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58 deps_cell{i} = struct ("package", package,
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59 "operator", operator,
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60 "version", version);
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61 else
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62 error ("incorrect syntax for dependency '%s' in the DESCRIPTION file\n",
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63 dep);
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64 endif
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65 endfor
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66 endfunction
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67