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1 ## Copyright (C) 2004, 2006, 2007 Paul Kienzle |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 3 of the License, or (at |
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8 ## your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <http://www.gnu.org/licenses/>. |
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18 ## |
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19 ## Original version by Paul Kienzle distributed as free software in the |
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20 ## public domain. |
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21 |
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22 ## -*- texinfo -*- |
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23 ## @deftypefn {Function File} {} inputname (@var{n}) |
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24 ## Return the text defining @var{n}-th input to the function. |
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25 ## @end deftypefn |
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26 |
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27 function s = inputname (n) |
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28 |
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29 if (nargin != 1) |
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30 print_usage (); |
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31 endif |
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32 |
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33 s = evalin ("caller", sprintf ("deblank (argn(%d,:));", n)); |
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34 |
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35 endfunction |
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36 |
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37 ## Warning: heap big magic in the following tests!!! |
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38 ## The test function builds a private context for each |
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39 ## test, with only the specified values shared between |
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40 ## them. It does this using the following template: |
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41 ## |
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42 ## function [<shared>] = testfn(<shared>) |
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43 ## <test> |
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44 ## |
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45 ## To test inputname, I need a function context invoked |
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46 ## with known parameter names. So define a couple of |
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47 ## shared parameters, et voila!, the test is trivial. |
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48 %!shared hello,worldly |
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49 %!assert(inputname(1),'hello'); |
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50 %!assert(inputname(2),'worldly'); |
