Mercurial > octave-antonio
annotate scripts/strings/strcat.m @ 20164:df437a52bcaf stable
doc: Update more docstrings to have one sentence summary as first line.
Reviewed miscellaneous, sparse, strings in scripts directory.
* scripts/miscellaneous/bzip2.m, scripts/miscellaneous/citation.m,
scripts/miscellaneous/compare_versions.m, scripts/miscellaneous/computer.m,
scripts/miscellaneous/debug.m, scripts/miscellaneous/dir.m,
scripts/miscellaneous/edit.m, scripts/miscellaneous/error_ids.m,
scripts/miscellaneous/fileattrib.m, scripts/miscellaneous/fullfile.m,
scripts/miscellaneous/genvarname.m, scripts/miscellaneous/gzip.m,
scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/news.m,
scripts/miscellaneous/open.m, scripts/miscellaneous/parseparams.m,
scripts/miscellaneous/recycle.m, scripts/miscellaneous/run.m,
scripts/miscellaneous/swapbytes.m, scripts/miscellaneous/tar.m,
scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m,
scripts/miscellaneous/what.m, scripts/sparse/bicg.m, scripts/sparse/bicgstab.m,
scripts/sparse/cgs.m, scripts/sparse/colperm.m, scripts/sparse/eigs.m,
scripts/sparse/etreeplot.m, scripts/sparse/gmres.m, scripts/sparse/gplot.m,
scripts/sparse/ichol.m, scripts/sparse/ilu.m, scripts/sparse/pcg.m,
scripts/sparse/pcr.m, scripts/sparse/qmr.m, scripts/sparse/spaugment.m,
scripts/sparse/spconvert.m, scripts/sparse/spdiags.m, scripts/sparse/spfun.m,
scripts/sparse/spones.m, scripts/sparse/sprandsym.m, scripts/sparse/spstats.m,
scripts/sparse/spy.m, scripts/sparse/svds.m, scripts/sparse/treelayout.m,
scripts/sparse/treeplot.m, scripts/strings/base2dec.m,
scripts/strings/bin2dec.m, scripts/strings/blanks.m, scripts/strings/cstrcat.m,
scripts/strings/deblank.m, scripts/strings/dec2base.m,
scripts/strings/dec2bin.m, scripts/strings/dec2hex.m,
scripts/strings/findstr.m, scripts/strings/hex2dec.m, scripts/strings/index.m,
scripts/strings/isletter.m, scripts/strings/isstrprop.m,
scripts/strings/mat2str.m, scripts/strings/ostrsplit.m,
scripts/strings/regexptranslate.m, scripts/strings/rindex.m,
scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strchr.m,
scripts/strings/strjoin.m, scripts/strings/strjust.m,
scripts/strings/strmatch.m, scripts/strings/strsplit.m,
scripts/strings/strtok.m, scripts/strings/strtrim.m,
scripts/strings/strtrunc.m, scripts/strings/substr.m,
scripts/strings/untabify.m, scripts/time/datenum.m:
Update more docstrings to have one sentence summary as first line.
author | Rik <rik@octave.org> |
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date | Mon, 04 May 2015 14:22:02 -0700 |
parents | 4197fc428c7d |
children |
rev | line source |
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1 ## Copyright (C) 1994-2015 John W. Eaton |
10032 | 2 ## Copyright (C) 2009 Jaroslav Hajek |
2313 | 3 ## |
4 ## This file is part of Octave. | |
5 ## | |
6 ## Octave is free software; you can redistribute it and/or modify it | |
7 ## under the terms of the GNU General Public License as published by | |
7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
9 ## your option) any later version. | |
2313 | 10 ## |
11 ## Octave is distributed in the hope that it will be useful, but | |
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 ## General Public License for more details. | |
15 ## | |
16 ## You should have received a copy of the GNU General Public License | |
7016 | 17 ## along with Octave; see the file COPYING. If not, see |
18 ## <http://www.gnu.org/licenses/>. | |
920 | 19 |
3361 | 20 ## -*- texinfo -*- |
21 ## @deftypefn {Function File} {} strcat (@var{s1}, @var{s2}, @dots{}) | |
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22 ## Return a string containing all the arguments concatenated |
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23 ## horizontally. |
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24 ## |
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25 ## If the arguments are cell strings, @code{strcat} returns a cell string |
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26 ## with the individual cells concatenated. For numerical input, each element |
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27 ## is converted to the corresponding ASCII character. Trailing white space |
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28 ## for any character string input is eliminated before the strings are |
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29 ## concatenated. Note that cell string values do @strong{not} have |
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30 ## whitespace trimmed. |
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31 ## |
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32 ## For example: |
3426 | 33 ## |
3361 | 34 ## @example |
35 ## @group | |
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36 ## strcat ("|", " leading space is preserved", "|") |
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37 ## @result{} | leading space is preserved| |
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38 ## @end group |
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39 ## @end example |
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40 ## |
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41 ## @example |
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42 ## @group |
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43 ## strcat ("|", "trailing space is eliminated ", "|") |
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44 ## @result{} |trailing space is eliminated| |
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45 ## @end group |
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46 ## @end example |
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47 ## |
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48 ## @example |
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49 ## @group |
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50 ## strcat ("homogeneous space |", " ", "| is also eliminated") |
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51 ## @result{} homogeneous space || is also eliminated |
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52 ## @end group |
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53 ## @end example |
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54 ## |
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55 ## @example |
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56 ## @group |
3361 | 57 ## s = [ "ab"; "cde" ]; |
58 ## strcat (s, s, s) | |
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59 ## @result{} |
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60 ## "ababab " |
3361 | 61 ## "cdecdecde" |
62 ## @end group | |
63 ## @end example | |
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64 ## |
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65 ## @example |
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66 ## @group |
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67 ## s = @{ "ab"; "cd " @}; |
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68 ## strcat (s, s, s) |
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69 ## @result{} |
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70 ## @{ |
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71 ## [1,1] = ababab |
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72 ## [2,1] = cd cd cd |
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73 ## @} |
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74 ## @end group |
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75 ## @end example |
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76 ## |
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77 ## @seealso{cstrcat, char, strvcat} |
3361 | 78 ## @end deftypefn |
2697 | 79 |
2314 | 80 ## Author: jwe |
81 | |
6138 | 82 function st = strcat (varargin) |
920 | 83 |
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84 if (nargin == 0) |
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85 print_usage (); |
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86 endif |
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87 |
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88 if (nargin == 1) |
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89 st = varargin{1}; |
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90 else |
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91 ## Convert to cells of strings |
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92 uo = "uniformoutput"; |
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93 reals = cellfun ("isreal", varargin); |
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94 if (any (reals)) |
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95 varargin(reals) = cellfun ("char", varargin(reals), uo, false); |
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96 endif |
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97 chars = cellfun ("isclass", varargin, "char"); |
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98 allchar = all (chars); |
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99 varargin(chars) = cellfun ("cellstr", varargin(chars), uo, false); |
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100 if (! all (cellfun ("isclass", varargin, "cell"))) |
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101 error ("strcat: inputs must be strings or cells of strings"); |
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102 endif |
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103 |
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104 ## We don't actually need to bring all cells to common size, because |
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105 ## cellfun can now expand scalar cells. |
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106 err = common_size (varargin{:}); |
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107 |
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108 if (err) |
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109 error ("strcat: arguments must be the same size, or be scalars"); |
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110 endif |
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111 |
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112 ## Cellfun handles everything for us. |
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113 st = cellfun ("horzcat", varargin{:}, uo, false); |
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114 |
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115 if (allchar) |
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116 ## If all inputs were strings, return strings. |
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117 st = char (st); |
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118 endif |
920 | 119 endif |
120 | |
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121 endfunction |
920 | 122 |
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123 |
6138 | 124 ## test the dimensionality |
125 ## 1d | |
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126 %!assert (strcat ("ab ", "ab "), "abab") |
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127 %!assert (strcat ({"ab "}, "ab "), {"ab ab"}) |
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128 %!assert (strcat ("ab ", {"ab "}), {"abab "}) |
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129 %!assert (strcat ({"ab "}, {"ab "}), {"ab ab "}) |
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130 %!assert (strcat ("", "ab"), "ab") |
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131 %!assert (strcat ("", {"ab"}, {""}), {"ab"}) |
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133 %!assert (strcat (["ab ";"cde"], ["ab ";"cde"]), ["abab ";"cdecde"]) |
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135 ## test for deblanking implied trailing spaces of character input |
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136 %!assert (strcat ("foo", "bar"), "foobar") |
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137 %!assert (strcat (["a"; "bb"], ["foo"; "bar"]), ["afoo "; "bbbar"]) |
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138 |
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139 ## test for mixing character and cell inputs |
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140 %!assert (strcat ("a", {"bc", "de"}, "f"), {"abcf", "adef"}) |
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142 ## test for scalar strings with vector strings |
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143 %!assert (strcat (["a"; "b"], "c"), ["ac"; "bc"]) |
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144 |
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145 ## test with cells with strings of differing lengths |
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146 %!assert (all (strcmp (strcat ({"a", "bb"}, "ccc"), {"accc", "bbccc"}))) |
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147 %!assert (all (strcmp (strcat ("a", {"bb", "ccc"}), {"abb", "accc"}))) |
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149 %!assert (strcat (1, 2), strcat (char (1), char (2))) |
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150 %!assert (strcat ("", 2), strcat ([], char (2))) |
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152 %!error strcat () |
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153 |