Mercurial > octave-antonio
annotate scripts/strings/untabify.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 |
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1 ## Copyright (C) 2010-2015 Ben Abbott |
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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, |
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11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 ## GNU 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 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} untabify (@var{t}) |
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21 ## @deftypefnx {Function File} {} untabify (@var{t}, @var{tw}) |
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22 ## @deftypefnx {Function File} {} untabify (@var{t}, @var{tw}, @var{deblank}) |
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23 ## Replace TAB characters in @var{t} with spaces. |
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24 ## |
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25 ## The input, @var{t}, may be either a 2-D character array, or a cell array of |
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26 ## character strings. The output is the same class as the input. |
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27 ## |
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28 ## The tab width is specified by @var{tw}, and defaults to eight. |
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29 ## |
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30 ## If the optional argument @var{deblank} is true, then the spaces will be |
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31 ## removed from the end of the character data. |
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32 ## |
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33 ## The following example reads a file and writes an untabified version of the |
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34 ## same file with trailing spaces stripped. |
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35 ## |
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36 ## @example |
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37 ## @group |
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38 ## fid = fopen ("tabbed_script.m"); |
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39 ## text = char (fread (fid, "uchar")'); |
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40 ## fclose (fid); |
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41 ## fid = fopen ("untabified_script.m", "w"); |
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42 ## text = untabify (strsplit (text, "\n"), 8, true); |
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43 ## fprintf (fid, "%s\n", text@{:@}); |
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44 ## fclose (fid); |
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45 ## @end group |
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46 ## @end example |
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47 ## |
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48 ## @seealso{strjust, strsplit, deblank} |
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49 ## @end deftypefn |
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50 |
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51 ## Author: Ben Abbott <bpabbott@mac.com> |
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52 ## Created: 2010-10-15 |
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53 |
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54 function s = untabify (t, tw = 8, dblank = false) |
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55 |
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56 if (nargin < 1 || nargin > 3) |
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57 print_usage (); |
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58 elseif (! (ischar (t) || iscellstr (t))) |
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59 error ("untabify: T must be a string or cellstring"); |
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60 endif |
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61 |
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62 if (ischar (t)) |
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63 s = replace_tabs (t, tw); |
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64 else |
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65 s = cellfun (@replace_tabs, t, {tw}, "uniformoutput", false); |
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66 endif |
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67 |
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68 if (dblank) |
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69 s = deblank (s); |
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70 endif |
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71 |
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72 endfunction |
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73 |
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74 function s = replace_tabs (t, tw) |
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75 |
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76 if (ndims (t) != 2) |
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77 error ("untabify: character strings to untabify must have 2 dimensions"); |
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78 endif |
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79 |
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80 if (isempty (t)) |
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81 s = t; |
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82 else |
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83 nr = rows (t); |
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84 sc = cell (nr, 1); |
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85 for j = 1:nr |
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86 n = 1:numel (t(j,:)); |
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87 m = find (t(j,:) == "\t"); |
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88 t(j,m) = " "; |
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89 for i = 1:numel (m) |
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90 k = tw * ceil (n(m(i)) / tw); |
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91 dn = k - n(m(i)); |
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92 n(m(i):end) += dn; |
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93 endfor |
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94 sc{j} = blanks (n(end)); |
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95 sc{j}(n) = t(j,:); |
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96 endfor |
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97 s = char (sc); |
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98 endif |
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99 |
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100 endfunction |
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101 |
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102 |
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103 %!test |
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104 %! s = untabify ("\thello\t"); |
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105 %! assert (s, [blanks(8) "hello" blanks(3)]); |
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106 |
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107 %!test |
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108 %! s = untabify ("\thello\t", 2); |
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109 %! assert (s, [blanks(2) "hello" blanks(1)]); |
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110 |
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111 %!test |
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112 %! s = untabify ("\thello\t", 4, true); |
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113 %! assert (s, [blanks(4) "hello"]); |
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114 |
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115 %!assert (isempty (untabify (""))) |
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116 |
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117 %!test |
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118 %! s = char (randi ([97 97+25], 3, 3)); |
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119 %! assert (untabify (s), char (untabify (cellstr (s)))); |
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120 |
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121 %!error untabify () |
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122 %!error untabify (1,2,3,4) |
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123 %!error <must be a string> untabify (1) |
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124 |