annotate scripts/strings/strcat.m @ 3361:4f40efa995c1

[project @ 1999-11-19 21:19:37 by jwe]
author jwe
date Fri, 19 Nov 1999 21:19:44 +0000
parents c17387059fd3
children f8dde1807dee
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1 ## Copyright (C) 1996, 1997 John W. Eaton
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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 2, or (at your option)
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8 ## 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, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} strcat (@var{s1}, @var{s2}, @dots{})
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22 ## Return a string containing all the arguments concatenated. For example,
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23 ##
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24 ## @example
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25 ## @group
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26 ## s = [ "ab"; "cde" ];
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27 ## strcat (s, s, s)
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28 ## @result{} "ab ab ab "
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29 ## "cdecdecde"
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30 ## @end group
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31 ## @end example
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32 ## @end deftypefn
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34 ## Author: jwe
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35
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36 function st = strcat (s, t, ...)
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38 if (nargin > 1)
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39 save_empty_list_elements_ok = empty_list_elements_ok;
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40 unwind_protect
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41 empty_list_elements_ok = 1;
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42 if (isstr (s) && isstr (t))
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43 tmpst = [s, t];
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44 else
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45 error ("strcat: all arguments must be strings");
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46 endif
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47 n = nargin - 2;
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48 while (n--)
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49 tmp = va_arg ();
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50 if (isstr (tmp))
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51 tmpst = [tmpst, tmp];
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52 else
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53 error ("strcat: all arguments must be strings");
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54 endif
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55 endwhile
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56 unwind_protect_cleanup
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57 empty_list_elements_ok = save_empty_list_elements_ok;
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58 end_unwind_protect
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59 else
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60 usage ("strcat (s, t, ...)");
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61 endif
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63 st = tmpst;
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64
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65 endfunction