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1 ## Copyright (C) 1996 Kurt Hornik |
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 ## 02110-1301, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} strvcat (@var{s_1}, @dots{}, @var{s_n}) |
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22 ## Return a matrix containing the strings (and cell-strings) |
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23 ## @var{s_1}, @dots{}, @var{s_n} as |
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24 ## its rows. Each string is padded with blanks in order to form a valid |
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25 ## matrix. Unlike @var{str2mat}, empty strings are ignored. |
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26 ## @seealso{strcat, str2mat} |
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27 ## @end deftypefn |
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28 |
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29 ## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> |
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30 ## Adapted-By: jwe |
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31 ## Modified: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> converted |
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32 ## str2mat to strvcat. Same function except that strvcat |
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33 ## ignores empty strings. |
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34 ## Modified by Alois Schloegl <a.schloegl@ieee.org> Mar 2005 |
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35 ## added support for cell-strings |
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36 ## Modifed by David Bateman for NDArrays |
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37 |
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38 function retval = strvcat (varargin) |
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39 |
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40 if (nargin == 0) |
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41 print_usage (); |
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42 endif |
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43 |
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44 nr = zeros (nargin, 1); |
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45 nc = zeros (nargin, 1); |
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46 K = 0; |
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47 nd = ndims (varargin {1}); |
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48 sz = size (varargin {1}); |
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49 for k = 1 : nargin |
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50 s = varargin{k}; |
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51 if (iscell (s)) |
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52 for k1 = 1:length(s) |
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53 K = K+1; |
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54 nr(K) = size (s{k1}, 1); |
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55 nc(K) = size (s{k1}, 2); |
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56 if (ndims (s{k1}) != nd) |
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57 error ("strvcat: dimension mismatch"); |
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58 else |
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59 if (any (sz(3:nd) != size (s{k1}) (3:nd))) |
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60 error ("strvcat: dimension mismatch"); |
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61 endif |
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62 endif |
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63 endfor |
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64 else |
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65 K = K + 1; |
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66 nr(K) = size (s, 1); |
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67 nc(K) = size (s, 2); |
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68 if (ndims (s) != nd) |
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69 error ("strvcat: dimension mismatch"); |
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70 else |
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71 if (any (sz(3:nd) != size (s) (3:nd))) |
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72 error ("strvcat: dimension mismatch"); |
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73 endif |
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74 endif |
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75 endif |
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76 endfor |
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77 |
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78 sz(1) = sum (nr); |
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79 sz(2) = max (nc); |
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80 retval = char (ones (sz) * toascii (" ")); |
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81 |
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82 idx = cell(nd,1); |
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83 for k = 3 : nd; |
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84 idx {k} = sz {k}; |
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85 endfor |
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86 |
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87 K = 0; |
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88 row_offset = 0; |
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89 for k = 1 : nargin |
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90 s = varargin{k}; |
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91 if (iscell (s)) |
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92 for k1 = 1:length(s) |
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93 K = K + 1; |
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94 idx{1} = [row_offset + 1 : row_offset + nr(k)]; |
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95 idx{2} = [1 : nc(K)]; |
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96 retval(idx{:}) = char(s{k1}); |
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97 row_offset = row_offset + size (s{k1}, 1); |
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98 endfor |
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99 else |
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100 K = K + 1; |
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101 if (nc(K) > 0) |
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102 retval ((row_offset + 1) : (row_offset + nr(K)), 1:nc(K)) = char(s); |
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103 endif |
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104 row_offset = row_offset + nr(K); |
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105 endif |
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106 endfor |
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107 |
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108 endfunction |
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109 |
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110 %!shared s1,s2,s3,s4,c |
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111 %! s1 = "quick"; s2 = "brown"; s3 = "fox"; s4 = ["quick";"brown";"fox "]; |
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112 %! c{1} = s1; c{2} = s2; c{3} = s3; |
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113 %!assert(strvcat(s1,s2,s3),s4) |
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114 %!assert(strvcat(c),s4) |
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115 %!assert(strvcat(s4,s4),[s4;s4]); |
