1 | %'stra2num': transform letters (a, b, c) or numerical strings ('1','2'..) to the corresponding numbers
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2 | %--------------------------------------------
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3 | % function numres=stra2num(str)
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4 | %
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5 | % OUTPUT:
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6 | % numres: number (double)
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7 | %
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8 | % INPUT:
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9 | % str: string corresponding to a number or a letter 'a' 'b',.., otherwise the output is empty
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10 | %
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11 | % see also num2stra, name_generator, name2display
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12 |
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13 | %=======================================================================
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14 | % Copyright 2008-2017, LEGI UMR 5519 / CNRS UGA G-INP, Grenoble, France
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15 | % http://www.legi.grenoble-inp.fr
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16 | % Joel.Sommeria - Joel.Sommeria (A) legi.cnrs.fr
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17 | %
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18 | % This file is part of the toolbox UVMAT.
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19 | %
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20 | % UVMAT is free software; you can redistribute it and/or modify
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21 | % it under the terms of the GNU General Public License as published
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22 | % by the Free Software Foundation; either version 2 of the license,
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23 | % or (at your option) any later version.
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24 | %
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25 | % UVMAT is distributed in the hope that it will be useful,
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26 | % but WITHOUT ANY WARRANTY; without even the implied warranty of
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27 | % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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28 | % GNU General Public License (see LICENSE.txt) for more details.
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29 | %=======================================================================
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30 |
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31 | function numres=stra2num(str)
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32 | numres=[]; %default
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33 | if double(str) >= 48 & double(str) <= 57 % = test for number strings
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34 | numres=str2double(str);
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35 | elseif double(str) >= 65 & double(str) <= 90 % test on ascii code for capital letters
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36 | numres=double(str)-64; %change capital letters to corresponding number in the alphabet
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37 | elseif double(str) >= 97 & double(str) <= 122 % test on ascii code for small letters
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38 | numres=double(str)-96; %change small letters to corresponding number in the alphabet
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39 | end
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