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annotate scripts/io/textscan.m @ 20599:66adbb6e88ad stable

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textread.m, textscan.m: always remove headerlines args before invoking strread (bug #46080)
author Ethan Biery <ebiery@lutron.com>
date Thu, 01 Oct 2015 22:33:13 +0200
parents 1b4bef838aaf
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2ce1f1966fc3 textscan.m: Fix undefined whitespace error with empty format input (bug #41824).
Sergey Plotnikov
parents: 17338
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1 ## Copyright (C) 2010-2014 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, 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 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {@var{C} =} textscan (@var{fid}, @var{format})
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21 ## @deftypefnx {Function File} {@var{C} =} textscan (@var{fid}, @var{format}, @var{n})
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22 ## @deftypefnx {Function File} {@var{C} =} textscan (@var{fid}, @var{format}, @var{param}, @var{value}, @dots{})
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23 ## @deftypefnx {Function File} {@var{C} =} textscan (@var{fid}, @var{format}, @var{n}, @var{param}, @var{value}, @dots{})
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24 ## @deftypefnx {Function File} {@var{C} =} textscan (@var{str}, @dots{})
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25 ## @deftypefnx {Function File} {[@var{C}, @var{position}] =} textscan (@var{fid}, @dots{})
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26 ## Read data from a text file or string.
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27 ##
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28 ## The string @var{str} or file associated with @var{fid} is read from and
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29 ## parsed according to @var{format}. The function behaves like @code{strread}
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30 ## except it can also read from file instead of a string. See the documentation
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31 ## of @code{strread} for details.
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32 ##
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33 ## In addition to the options supported by @code{strread}, this function
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34 ## supports a few more:
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35 ##
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36 ## @itemize
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37 ## @item @qcode{"collectoutput"}:
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38 ## A value of 1 or true instructs textscan to concatenate consecutive columns
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39 ## of the same class in the output cell array. A value of 0 or false (default)
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40 ## leaves output in distinct columns.
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41 ##
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42 ## @item @qcode{"endofline"}:
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43 ## Specify @qcode{"@xbackslashchar{}r"}, @qcode{"@xbackslashchar{}n"} or
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44 ## @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} (for CR, LF, or CRLF). If no
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45 ## value is given, it will be inferred from the file. If set to "" (empty
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46 ## string) EOLs are ignored as delimiters and added to whitespace.
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47 ##
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48 ## @item @qcode{"headerlines"}:
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49 ## The first @var{value} number of lines of @var{fid} are skipped.
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50 ##
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51 ## @item @qcode{"returnonerror"}:
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52 ## If set to numerical 1 or true (default), return normally when read errors
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53 ## have been encountered. If set to 0 or false, return an error and no data.
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54 ## As the string or file is read by columns rather than by rows, and because
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55 ## textscan is fairly forgiving as regards read errors, setting this option
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56 ## may have little or no actual effect.
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57 ## @end itemize
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58 ##
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59 ## When reading from a character string, optional input argument @var{n}
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60 ## specifies the number of times @var{format} should be used (i.e., to limit
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61 ## the amount of data read).
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62 ## When reading from file, @var{n} specifies the number of data lines to read;
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63 ## in this sense it differs slightly from the format repeat count in strread.
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64 ##
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65 ## The output @var{C} is a cell array whose second dimension is determined
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66 ## by the number of format specifiers.
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67 ##
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68 ## The second output, @var{position}, provides the position, in characters,
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69 ## from the beginning of the file.
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70 ##
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71 ## If the format string is empty (not: omitted) and the file contains only
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72 ## numeric data (excluding headerlines), textscan will return data in a number
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73 ## of columns matching the number of numeric fields on the first data line of
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74 ## the file.
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75 ##
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76 ## @seealso{dlmread, fscanf, load, strread, textread}
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77 ## @end deftypefn
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78
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79 ## Author: Ben Abbott <bpabbott@mac.com>
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80
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81 function [C, position] = textscan (fid, format = "%f", varargin)
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82
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83 BUFLENGTH = 4096; # Read buffer
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84 emptfmt = 0; # Signals deliberately empty format string
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85
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86 ## Check input
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87 if (nargin < 1)
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88 print_usage ();
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89 endif
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90
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91 if (isempty (format))
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92 emptfmt = 1;
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93 format = "%f";
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94 endif
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95
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96 if (! ischar (format))
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97 error ("textscan: FORMAT must be a string");
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98 endif
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99
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100 ## Determine the number of data fields & initialize output array
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101 num_fields = numel (regexp (format, '(%(\d*|\d*\.\d*)?[nfduscq]|%\[)', "match"));
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102 if (! num_fields)
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103 error ("textscan.m: no valid format conversion specifiers found\n");
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104 endif
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105 C = cell (1, num_fields);
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106
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107 if (! (isa (fid, "double") && fid > 0) && ! ischar (fid))
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108 error ("textscan: first argument must be a file id or character string");
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109 endif
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110
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111 args = varargin;
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112 if (nargin > 2 && isnumeric (args{1}))
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113 nlines = args{1};
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114 else
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115 nlines = Inf;
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116 endif
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117 if (nlines < 1)
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118 printf ("textscan: N = 0, no data read\n");
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119 return; endif
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120
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121 if (! any (strcmpi (args, "emptyvalue")))
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122 ## Matlab returns NaNs for missing values
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123 args(end+1:end+2) = {'emptyvalue', NaN};
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parents:
diff changeset
124 endif
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
125
12866
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diff changeset
126 ## Check default parameter values that differ for strread & textread
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diff changeset
127
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
128 ipos = find (strcmpi (args, "whitespace"));
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
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diff changeset
129 if (isempty (ipos))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
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parents: 12679
diff changeset
130 ## Matlab default whitespace = " \b\t"
12877
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diff changeset
131 args(end+1:end+2) = {'whitespace', " \b\t"};
12866
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diff changeset
132 whitespace = " \b\t";
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
133 else
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
134 ## Check if there's at least one string format specifier
14213
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
135 has_str_fmt = regexp (format, '%[*]?\d*s', "once");
a022c04f68cc Replace to-be-deprecated strmatch occurrences with alternate code.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
136 ## If there is a string format AND whitespace value = empty,
12866
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diff changeset
137 ## don't add a space (char(32)) to whitespace
14213
a022c04f68cc Replace to-be-deprecated strmatch occurrences with alternate code.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
138 if (! (isempty (args{ipos+1}) && has_str_fmt))
15871
878623ca15e1 textscan.m: fix treatment of whitespace argument (bug #37961)
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
139 args{ipos+1} = unique ([" ", args{ipos+1}]);
12866
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Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
140 endif
18616
2ce1f1966fc3 textscan.m: Fix undefined whitespace error with empty format input (bug #41824).
Sergey Plotnikov
parents: 17338
diff changeset
141 whitespace = args{ipos+1};
12866
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diff changeset
142 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
143
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
144 if (! any (strcmpi (args, "delimiter")))
13141
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John W. Eaton <jwe@octave.org>
parents: 12916
diff changeset
145 ## Matlab says default delimiter = whitespace.
12866
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diff changeset
146 ## strread() will pick this up further
12877
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diff changeset
147 args(end+1:end+2) = {'delimiter', ""};
16357
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parents: 16311
diff changeset
148 delimiter = "";
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
149 else
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
150 delimiter = args{find (strcmpi (args, "delimiter")) + 1};
12866
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diff changeset
151 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
152
12914
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Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
153 collop = false;
ac00ae83ea2e More compatibility improvements for textscan and strread
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parents: 12891
diff changeset
154 ipos = find (strcmpi (args, "collectoutput"));
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
155 if (! isempty (ipos))
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
156 ## Search & concatenate consecutive columns of same class requested
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Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
157 if (isscalar (args{ipos+1})
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
158 && (islogical (args{ipos+1}) || isnumeric (args{ipos+1})))
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
159 collop = args{ipos+1};
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
160 else
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
161 warning ("textscan: illegal value for CollectOutput parameter - ignored");
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
162 endif
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
163 ## Remove argument before call to strread() below
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
164 args(ipos:ipos+1) = [];
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
165 endif
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
166
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diff changeset
167 if (any (strcmpi (args, "returnonerror")))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
168 ## Because of the way strread() reads data (columnwise) this parameter
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parents: 12679
diff changeset
169 ## can't be neatly implemented. strread() will pick it up anyway
12877
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Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
170 warning ('textscan: ReturnOnError is not fully implemented');
12866
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diff changeset
171 else
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
172 ## Set default value (=true)
12877
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diff changeset
173 args(end+1:end+2) = {"returnonerror", 1};
12866
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diff changeset
174 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
175
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
176 ## Check if a headerlines argument is specified
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
177 headerlines = find (strcmpi (args, "headerlines"), 1);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
178 if (! isempty (headerlines))
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
179 ## Yep. But it is stray when reading from strings...
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
180 if (ischar (fid))
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
181 warning ("textscan: 'headerlines' ignored when reading from strings");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
182 endif
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
183 endif
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
184
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diff changeset
185 if (ischar (fid))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
186 ## Read from a text string
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Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
187 if (nargout == 2)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
188 error ("textscan: cannot provide position information for character input");
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
189 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
190 str = fid;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
191 else
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
192 st_pos = ftell (fid);
12866
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diff changeset
193 ## Skip header lines if requested
16060
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
194 if (! isempty (headerlines))
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
195 ## Beware of missing or wrong headerline value
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
196 if (headerlines == numel (args)
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
197 || ! isnumeric (args{headerlines + 1}))
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
198 error ("Missing or illegal value for 'headerlines'" );
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
199 endif
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
200 ## Avoid conveying floats to fskipl
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
201 args{headerlines + 1} = round (args{headerlines + 1});
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
202 if (args{headerlines + 1} > 0)
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
203 ## Beware of zero valued headerline, fskipl would skip to EOF
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
204 fskipl (fid, args{headerlines + 1});
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
205 st_pos = ftell (fid);
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
206 elseif (args{headerlines + 1} < 0)
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
207 warning ("textscan.m: negative headerline value ignored");
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
208 endif
20599
66adbb6e88ad textread.m, textscan.m: always remove headerlines args before invoking strread (bug #46080)
Ethan Biery <ebiery@lutron.com>
parents: 20256
diff changeset
209 args(headerlines:headerlines+1) = [];
19627
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 18616
diff changeset
210 endif
16305
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
211 ## Read a first file chunk. Rest follows after endofline processing
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
212 [str, count] = fscanf (fid, "%c", BUFLENGTH);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
213
12866
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
214 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
215
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
216 ## Check for empty result
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
217 if (isempty (str))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
218 warning ("textscan: no data read");
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
219 return;
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
220 endif
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
221
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
222 ## Check value of 'endofline'. String or file doesn't seem to matter
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
223 endofline = find (strcmpi (args, "endofline"), 1);
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
224 if (! isempty (endofline))
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12916
diff changeset
225 if (ischar (args{endofline + 1}))
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
226 eol_char = args{endofline + 1};
14213
a022c04f68cc Replace to-be-deprecated strmatch occurrences with alternate code.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
227 if (! any (strcmp (eol_char, {"", "\n", "\r", "\r\n"})))
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
228 error ("textscan: illegal EndOfLine character value specified");
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
229 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
230 else
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12916
diff changeset
231 error ("textscan: character value required for EndOfLine");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
232 endif
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
233 else
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
234 if (! ischar (fid))
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
235 ## Determine EOL from file.
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
236 ## Search for EOL candidates in the first BUFLENGTH chars
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
237 eol_srch_len = min (length (str), BUFLENGTH);
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
238 ## First try DOS (CRLF)
16311
9c4ac8f25a8c textscan.m, textread.m: fix wrong code assessing EOL char(s), remove duplicate code
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16305
diff changeset
239 if (! isempty (strfind (str(1 : eol_srch_len), "\r\n")))
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
240 eol_char = "\r\n";
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
241 ## Perhaps old Macintosh? (CR)
16311
9c4ac8f25a8c textscan.m, textread.m: fix wrong code assessing EOL char(s), remove duplicate code
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16305
diff changeset
242 elseif (! isempty (strfind (str(1 : eol_srch_len), "\r")))
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
243 eol_char = "\r";
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
244 ## Otherwise, use plain UNIX (LF)
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
245 else
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
246 eol_char = "\n";
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
247 endif
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
248 else
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
249 eol_char = "\n";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
250 endif
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
251 ## Set up the default endofline param value
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
252 args(end+1:end+2) = {"endofline", eol_char};
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
253 endif
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
254
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
255 if (! ischar (fid))
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
256 ## Now that we know what EOL looks like, we can process format_repeat_count.
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
257 ## FIXME The below isn't ML-compatible: counts lines, not format string uses
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
258 if (isfinite (nlines) && (nlines >= 0))
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
259 l_eol_char = length (eol_char);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
260 eoi = findstr (str, eol_char);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
261 n_eoi = length (eoi);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
262 nblks = 0;
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
263 ## Avoid slow repeated str concatenation, first seek requested end of data
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
264 while (n_eoi < nlines && count == BUFLENGTH)
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
265 [nstr, count] = fscanf (fid, "%c", BUFLENGTH);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
266 if (count > 0)
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
267 ## Watch out for multichar EOL being missed across buffer boundaries
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
268 if (l_eol_char > 1)
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
269 str = [str(end - length (eol_char) + 2 : end) nstr];
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
270 else
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
271 str = nstr;
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
272 endif
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
273 eoi = findstr (str, eol_char);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
274 n_eoi += numel (eoi);
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
275 ++nblks;
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
276 endif
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
277 endwhile
20255
481fa65e5cab textread.m, textscan.m: Fix handling of format repeat count (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20136
diff changeset
278 ## Handle case of missing trailing EOL
481fa65e5cab textread.m, textscan.m: Fix handling of format repeat count (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20136
diff changeset
279 if (! strcmp (str(end - length (eol_char) + 1 : end), eol_char))
481fa65e5cab textread.m, textscan.m: Fix handling of format repeat count (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20136
diff changeset
280 eoi = [ eoi (length (str)) ];
481fa65e5cab textread.m, textscan.m: Fix handling of format repeat count (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20136
diff changeset
281 ++n_eoi;
481fa65e5cab textread.m, textscan.m: Fix handling of format repeat count (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20136
diff changeset
282 endif
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
283 ## OK, found EOL delimiting last requested line. Compute ptr (incl. EOL)
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
284 if (isempty (eoi))
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
285 disp ("textscan: format repeat count specified but no endofline found");
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
286 data_size = nblks * BUFLENGTH + count;
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
287 else
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
288 ## Compute data size to read incl complete EOL
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
289 data_size = (nblks * BUFLENGTH) ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
290 + eoi(end + min (nlines, n_eoi) - n_eoi) ...
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
291 + l_eol_char - 1;
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
292 endif
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
293 fseek (fid, st_pos, "bof");
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
294 str = fscanf (fid, "%c", data_size);
20256
1b4bef838aaf textscan.m: adapt format repeat counter when reading from file before invoking strread.m (bug #45047)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 20255
diff changeset
295 args{1} = Inf;
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
296 else
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
297 fseek (fid, st_pos, "bof");
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
298 str = fread (fid, "char=>char").';
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
299 endif
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
300 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
301
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
302 ## Strip trailing EOL to avoid returning stray missing values (f. strread).
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
303 ## However, in case of CollectOutput request, presence of EOL is required;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
304 ## also in case of deliberately entered empty format string
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
305 eol_at_end = strcmp (str(end-length (eol_char) + 1 : end), eol_char);
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
306 if (collop || emptfmt)
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
307 if (! eol_at_end)
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
308 str(end+1 : end+length (eol_char)) = eol_char;
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
309 endif
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
310 elseif (eol_at_end)
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
311 str(end-length (eol_char) + 1 : end) = "";
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
312 ## A corner case: str may now be empty....
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
313 if (isempty (str)); return; endif
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
314 endif
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
315
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
316 ## Call strread to make it do the real work
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
317 C = cell (1, num_fields);
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
318 [C{:}] = strread (str, format, args{:});
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12916
diff changeset
319
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
320 ## I.c.o. empty format, match nr. of cols to nr. of fields on first read line
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
321 if (emptfmt)
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
322 ## Find end of first line
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
323 eoi = index (str, eol_char);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
324 if (eoi)
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
325 ## str contains an EOL, proceed with assessing nr. of columns
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
326 ncols = countcols (C, str(1 : eoi-1), delimiter, whitespace);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
327 ## See if lowermost data row must be completed
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
328 pad = mod (numel (C{1}), ncols);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
329 if (pad)
18834
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
330 ## Pad output with emptyvalues (rest has been done by stread.m)
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
331 emptv = find (strcmpi (args, "emptyvalue"));
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
332 if (isempty (emptv))
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
333 ## By default textscan returns NaNs for empty fields
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
334 C(1) = [C{1}; NaN(ncols - pad, 1)];
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
335 else
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
336 ## Otherwise return supplied emptyvalue. Pick last occurrence
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
337 C(1) = [C{1}; repmat(args{emptv(end)+1}, ncols - pad, 1)];
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
338 endif
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
339 endif
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
340 ## Compute nr. of rows
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
341 nrows = floor (numel (C{1}) / ncols);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
342 ## Reshape C; watch out, transpose needed
19041
d69358d7f9bb textscan.m: Avoid conjugate transpose for complex data and empty format string (bug #42528)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18834
diff changeset
343 C(1) = reshape (C{1}, ncols, numel (C{1}) / ncols).';
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
344 ## Distribute columns over C and wipe cols 2:end of C{1}
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
345 for ii=2:ncols
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
346 C(ii) = C{1}(:, ii);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
347 endfor
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
348 C{1} = C{1}(:, 1);
19627
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 18616
diff changeset
349 endif
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
350 endif
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
351
12914
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diff changeset
352 ## If requested, collect output columns of same class
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
353 if (collop)
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
354 C = colloutp (C);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
355 endif
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
356
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
357 if (nargout == 2)
14565
98aaebc56d7c 2012-03-25 Philip Nienhuis <prnienhuis@users.sf.net>
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 14552
diff changeset
358 ## Remember file position (persistent var)
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
359 position = ftell (fid);
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
360 endif
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
361
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
362 endfunction
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
363
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
364
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
365 ## Assess nr of data fields on first line of data
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
366 function ncols = countcols (C, str, dlm, wsp)
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
367
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
368 if (isempty (dlm))
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
369 ## Field separator = whitespace. Fold multiple whitespace into one
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
370 str = regexprep (str, sprintf ("[%s]", wsp), " ");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
371 str = strtrim (str);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
372 ncols = numel (strfind (str, " ")) + 1;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
373 else
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
374 ncols = numel (regexp (str, sprintf ("[%s]", dlm))) + 1;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
375 endif
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
376
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
377 endfunction
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
378
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
379
12914
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Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
380 ## Collect consecutive columns of same class into one cell column
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
381 function C = colloutp (C)
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
382
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
383 ## Start at rightmost column and work backwards to avoid ptr mixup
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
384 ii = numel (C);
14552
86854d032a37 maint: miscellaneous style fixes for .m files
John W. Eaton <jwe@octave.org>
parents: 14363
diff changeset
385 while (ii > 1)
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
386 clss1 = class (C{ii});
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
387 jj = ii;
14552
86854d032a37 maint: miscellaneous style fixes for .m files
John W. Eaton <jwe@octave.org>
parents: 14363
diff changeset
388 while (jj > 1 && strcmp (clss1, class (C{jj - 1})))
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
389 ## Column to the left is still same class; check next column to the left
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
390 --jj;
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
391 endwhile
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
392 if (jj < ii)
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
393 ## Concatenate columns into current column
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
394 C{jj} = [C{jj : ii}];
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
395 ## Wipe concatenated columns to the right, resume search to the left
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
396 C(jj+1 : ii) = [];
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
397 ii = jj - 1;
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
398 else
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
399 ## No similar class in column to the left, search from there
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
400 --ii;
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
401 endif
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
402 endwhile
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
403
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
404 endfunction
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
405
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14214
diff changeset
406
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
407 %!test
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
408 %! str = "1, 2, 3, 4\n 5, , , 8\n 9, 10, 11, 12";
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
409 %! fmtstr = "%f %d %f %s";
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
410 %! c = textscan (str, fmtstr, 2, "delimiter", ",", "emptyvalue", -Inf);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
411 %! assert (isequal (c{1}, [1;5]));
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
412 %! assert (length (c{1}), 2);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
413 %! assert (iscellstr (c{4}));
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
414 %! assert (isequal (c{3}, [3; -Inf]));
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
415
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
416 %!test
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
417 %! b = [10:10:100];
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
418 %! b = [b; 8*b/5];
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
419 %! str = sprintf ("%g miles/hr = %g kilometers/hr\n", b);
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
420 %! fmt = "%f miles/hr = %f kilometers/hr";
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
421 %! c = textscan (str, fmt);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
422 %! assert (b(1,:)', c{1}, 1e-5);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
423 %! assert (b(2,:)', c{2}, 1e-5);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
424
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
425 %!test
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
426 %! str = "13, 72, NA, str1, 25\r\n// Middle line\r\n36, na, 05, str3, 6";
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
427 %! a = textscan (str, "%d %n %f %s %n", "delimiter", ",","treatAsEmpty", {"NA", "na"},"commentStyle", "//");
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
428 %! assert (a{1}, int32 ([13; 36]));
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
429 %! assert (a{2}, [72; NaN]);
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
430 %! assert (a{3}, [NaN; 5]);
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
431 %! assert (a{4}, {"str1"; "str3"});
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
432 %! assert (a{5}, [25; 6]);
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
433
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
434 %!test
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
435 %! str = "Km:10 = hhhBjjj miles16hour\r\n";
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
436 %! str = [str "Km:15 = hhhJjjj miles241hour\r\n"];
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
437 %! str = [str "Km:2 = hhhRjjj miles3hour\r\n"];
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
438 %! str = [str "Km:25 = hhhZ\r\n"];
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
439 %! fmt = "Km:%d = hhh%1sjjj miles%dhour";
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14214
diff changeset
440 %! a = textscan (str, fmt, "delimiter", " ");
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
441 %! assert (a{1}', int32 ([10 15 2 25]));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12679
diff changeset
442 %! assert (a{2}', {'B' 'J' 'R' 'Z'});
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
443 %! assert (a{3}', int32 ([16 241 3 0]));
11141
224c80da37c5 textscan.m: Add new function.
Ben Abbott <bpabbott@mac.com>
parents:
diff changeset
444
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
445 ## Test with default endofline parameter
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
446 %!test
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
447 %! c = textscan ("L1\nL2", "%s");
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
448 %! assert (c{:}, {"L1"; "L2"});
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
449
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
450 ## Test with endofline parameter set to "" (empty) - newline should be in word
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
451 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14214
diff changeset
452 %! c = textscan ("L1\nL2", "%s", "endofline", "");
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
453 %! assert (int8 (c{:}{:}), int8 ([ 76, 49, 10, 76, 50 ]));
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12880
diff changeset
454
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
455 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17312
diff changeset
456 %! ## No delimiters at all besides EOL. Skip fields, even empty fields
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
457 %! str = "Text1Text2Text\nTextText4Text\nText57Text";
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
458 %! c = textscan (str, "Text%*dText%dText");
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
459 %! assert (c{1}, int32 ([2; 4; 0]));
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
460
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
461 ## CollectOutput test
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
462 %!test
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
463 %! b = [10:10:100];
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
464 %! b = [b; 8*b/5; 8*b*1000/5];
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
465 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
466 %! fmt = "%f miles%s %s %f (%f) kilometers %*s";
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14214
diff changeset
467 %! c = textscan (str, fmt, "collectoutput", 1);
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
468 %! assert (size (c{3}), [10, 2]);
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
469 %! assert (size (c{2}), [10, 2]);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
470
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
471 ## CollectOutput test with uneven column length files
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
472 %!test
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
473 %! b = [10:10:100];
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
474 %! b = [b; 8*b/5; 8*b*1000/5];
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
475 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b);
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
476 %! str = [str "110 miles/hr"];
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
477 %! fmt = "%f miles%s %s %f (%f) kilometers %*s";
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
478 %! c = textscan (str, fmt, "collectoutput", 1);
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
479 %! assert (size (c{1}), [11, 1]);
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
480 %! assert (size (c{3}), [11, 2]);
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
481 %! assert (size (c{2}), [11, 2]);
14799
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
482 %! assert (c{3}(end), NaN);
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
483 %! assert (c{2}{11, 1}, "/hr");
21197c43f984 Better Matlab compatibility of textscan, bugs #36356 and #36392
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14621
diff changeset
484 %! assert (isempty (c{2}{11, 2}), true);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
485
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
486 ## Test input validation
12877
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
487 %!error textscan ()
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
488 %!error textscan (single (4))
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
489 %!error textscan ({4})
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
490 %!error <must be a string> textscan ("Hello World", 2)
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
491 %!error <cannot provide position information> [C, pos] = textscan ("Hello World")
ddea3962b024 Various improvements to strread, textread, textscan functions
Rik <octave@nomad.inbox5.com>
parents: 12873
diff changeset
492 %!error <character value required> textscan ("Hello World", '%s', 'EndOfLine', 3)
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
493
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
494 %! Test incomplete first data line
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
495 %! R = textscan (['Empty1' char(10)], 'Empty%d %f');
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
496 %! assert (R{1}, int32 (1));
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
497 %! assert (isempty (R{2}), true);
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
498
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
499 ## bug #37023 (actually a strread test)
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
500 %!test
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
501 %! data = textscan(" 1. 1 \n 2 3\n", '%f %f');
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
502 %! assert (data{1}, [1; 2], 1e-15);
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
503 %! assert (data{2}, [1; 3], 1e-15);
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
504
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
505 ## Whitespace test (bug #37333) using delimiter ";"
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
506 %!test
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
507 %! tc = [];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
508 %! tc{1, 1} = "C:/code;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
509 %! tc{1, end+1} = "C:/code/meas;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
510 %! tc{1, end+1} = " C:/code/sim;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
511 %! tc{1, end+1} = "C:/code/utils;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
512 %! string = [tc{:}];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
513 %! c = textscan (string, "%s", "delimiter", ";");
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
514 %! for k = 1:numel (c{1})
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
515 %! lh = c{1}{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
516 %! rh = tc{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
517 %! rh(rh == ";") = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
518 %! rh = strtrim (rh);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
519 %! assert (strcmp (lh, rh));
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
520 %! end
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
521
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
522 ## Whitespace test (bug #37333), adding multipleDelimsAsOne true arg
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
523 %!test
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
524 %! tc = [];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
525 %! tc{1, 1} = "C:/code;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
526 %! tc{1, end+1} = " C:/code/meas;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
527 %! tc{1, end+1} = "C:/code/sim;;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
528 %! tc{1, end+1} = "C:/code/utils;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
529 %! string = [tc{:}];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
530 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 1);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
531 %! for k = 1:numel (c{1})
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
532 %! lh = c{1}{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
533 %! rh = tc{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
534 %! rh(rh == ";") = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
535 %! rh = strtrim (rh);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
536 %! assert (strcmp (lh, rh));
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
537 %! end
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
538
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
539 ## Whitespace test (bug #37333), adding multipleDelimsAsOne false arg
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
540 %!test
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
541 %! tc = [];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
542 %! tc{1, 1} = "C:/code;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
543 %! tc{1, end+1} = " C:/code/meas;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
544 %! tc{1, end+1} = "C:/code/sim;;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
545 %! tc{1, end+1} = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
546 %! tc{1, end+1} = "C:/code/utils;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
547 %! string = [tc{:}];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
548 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 0);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
549 %! for k = 1:numel (c{1})
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
550 %! lh = c{1}{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
551 %! rh = tc{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
552 %! rh(rh == ";") = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
553 %! rh = strtrim (rh);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
554 %! assert (strcmp (lh, rh));
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
555 %! end
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
556
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
557 ## Whitespace test (bug #37333) whitespace "" arg
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
558 %!test
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
559 %! tc = [];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
560 %! tc{1, 1} = "C:/code;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
561 %! tc{1, end+1} = " C:/code/meas;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
562 %! tc{1, end+1} = "C:/code/sim;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
563 %! tc{1, end+1} = "C:/code/utils;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
564 %! string = [tc{:}];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
565 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", "");
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
566 %! for k = 1:numel (c{1})
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
567 %! lh = c{1}{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
568 %! rh = tc{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
569 %! rh(rh == ";") = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
570 %! assert (strcmp (lh, rh));
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
571 %! end
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
572
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
573 ## Whitespace test (bug #37333), whitespace " " arg
15868
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
574 %!test
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
575 %! tc = [];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
576 %! tc{1, 1} = "C:/code;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
577 %! tc{1, end+1} = " C:/code/meas;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
578 %! tc{1, end+1} = "C:/code/sim;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
579 %! tc{1, end+1} = "C:/code/utils;";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
580 %! string = [tc{:}];
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
581 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", " ");
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
582 %! for k = 1:numel (c{1})
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
583 %! lh = c{1}{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
584 %! rh = tc{k};
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
585 %! rh(rh == ";") = "";
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
586 %! rh = strtrim (rh);
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
587 %! assert (strcmp (lh, rh));
6251fa48d28b textscan.m: various whitespace & delimiter tests added
Andy Register <andy.register@gatech.edu>
parents: 15263
diff changeset
588 %! end
16060
f837bdd535f7 textscan.m: catch wrong headerlines values, tests added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15872
diff changeset
589
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
590 ## Test reading from a real file
16305
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
591 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
592 %! f = tempname ();
16305
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
593 %! fid = fopen (f, "w+");
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
594 %! d = rand (1, 4);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
595 %! fprintf (fid, " %f %f %f %f ", d);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
596 %! fseek (fid, 0, "bof");
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
597 %! A = textscan (fid, "%f %f");
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
598 %! fclose (fid);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
599 %! unlink (f);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
600 %! assert (A{1}, [d(1); d(3)], 1e-6);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
601 %! assert (A{2}, [d(2); d(4)], 1e-6);
23636765e00a textscan.m: re-enable reading from file id, test added (bug #38517)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16060
diff changeset
602
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
603 ## Tests reading with empty format, should return proper nr of columns
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
604 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
605 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
606 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
607 %! fprintf (fid, " 1 2 3 4\n5 6 7 8");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
608 %! fseek (fid, 0, "bof");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
609 %! A = textscan (fid, "");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
610 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
611 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
612 %! assert (A{1}, [1 ; 5], 1e-6);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
613 %! assert (A{2}, [2 ; 6], 1e-6);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
614 %! assert (A{3}, [3 ; 7], 1e-6);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
615 %! assert (A{4}, [4 ; 8], 1e-6);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
616
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
617 ## Tests reading with empty format; empty fields & incomplete lower row
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
618 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
619 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
620 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
621 %! fprintf (fid, " ,2,,4\n5,6");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
622 %! fseek (fid, 0, "bof");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
623 %! A = textscan (fid, "", "delimiter", ",", "EmptyValue", 999, "CollectOutput" , 1);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
624 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
625 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
626 %! assert (A{1}, [999, 2, 999, 4; 5, 6, 999, 999], 1e-6);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
627
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
628 ## Error message tests
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
629
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
630 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
631 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
632 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
633 %! msg1 = "Missing or illegal value for 'headerlines'";
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
634 %! try
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
635 %! A = textscan (fid, "", "headerlines");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
636 %! end_try_catch;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
637 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
638 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
639 %! assert (msg1, lasterr);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
640
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
641 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
642 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
643 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
644 %! msg1 = "Missing or illegal value for 'headerlines'";
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
645 %! try
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
646 %! A = textscan (fid, "", "headerlines", "hh");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
647 %! end_try_catch;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
648 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
649 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
650 %! assert (msg1, lasterr);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
651
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
652 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
653 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
654 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
655 %! fprintf (fid,"some_string");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
656 %! fseek (fid, 0, "bof");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
657 %! msg1 = "textscan: illegal EndOfLine character value specified";
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
658 %! try
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
659 %! A = textscan (fid, "%f", "EndOfLine", "\n\r");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
660 %! end_try_catch;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
661 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
662 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
663 %! assert (msg1, lasterr);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
664
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
665 %!test
19312
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19083
diff changeset
666 %! f = tempname ();
16357
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
667 %! fid = fopen (f, "w+");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
668 %! fprintf (fid,"some_string");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
669 %! fseek (fid, 0, "bof");
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
670 %! msg1 = "textscan: character value required for EndOfLine";
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
671 %! try
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
672 %! A = textscan (fid, "%f", "EndOfLine", 33);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
673 %! end_try_catch;
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
674 %! fclose (fid);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
675 %! unlink (f);
0cbe330f39a2 textscan.m, textread.m: allow reading multi-column data files with empty format + tests (bug #38317)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16311
diff changeset
676 %! assert (msg1, lasterr);
17338
1c89599167a6 maint: End m-files with 1 blank line.
Rik <rik@octave.org>
parents: 17336
diff changeset
677
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
678 ## Bug #41824
18616
2ce1f1966fc3 textscan.m: Fix undefined whitespace error with empty format input (bug #41824).
Sergey Plotnikov
parents: 17338
diff changeset
679 %!test
2ce1f1966fc3 textscan.m: Fix undefined whitespace error with empty format input (bug #41824).
Sergey Plotnikov
parents: 17338
diff changeset
680 %! assert (textscan ("123", "", "whitespace", " "){:}, 123);
2ce1f1966fc3 textscan.m: Fix undefined whitespace error with empty format input (bug #41824).
Sergey Plotnikov
parents: 17338
diff changeset
681
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
682 ## Bug #42343-1, just test supplied emptyvalue (actually done by strread.m)
18834
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
683 %!test
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
684 %! assert (textscan (",NaN", "", "delimiter", "," ,"emptyValue" ,Inf), {Inf, NaN});
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
685
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
686 ## Bug #42343-2, test padding with supplied emptyvalue (done by textscan.m)
18834
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
687 %!test
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
688 %! a = textscan (",1,,4\nInf, ,NaN", "", "delimiter", ",", "emptyvalue", -10);
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
689 %! assert (cell2mat (a), [-10, 1, -10, 4; Inf, -10, NaN, -10]);
8354510f95ab textscan.m: properly process "emptyvalue" (bug #42343).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18616
diff changeset
690
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
691 ## Bug #42528
19041
d69358d7f9bb textscan.m: Avoid conjugate transpose for complex data and empty format string (bug #42528)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18834
diff changeset
692 %!test
d69358d7f9bb textscan.m: Avoid conjugate transpose for complex data and empty format string (bug #42528)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18834
diff changeset
693 %! assert (textscan ("1i", ""){1}, 0+1i);
d69358d7f9bb textscan.m: Avoid conjugate transpose for complex data and empty format string (bug #42528)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 18834
diff changeset
694 %! assert (cell2mat (textscan ("3, 2-4i, NaN\n -i, 1, 23.4+2.2i", "")), [3+0i, 2-4i, NaN+0i; 0-i, 1+0i, 23.4+2.2i]);
19083
c573d9c70ae5 Better checks for valid format conversion specifiers in textscan. & strread.m
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 19041
diff changeset
695
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19630
diff changeset
696 ## Illegal format specifiers
19083
c573d9c70ae5 Better checks for valid format conversion specifiers in textscan. & strread.m
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 19041
diff changeset
697 %!test
c573d9c70ae5 Better checks for valid format conversion specifiers in textscan. & strread.m
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 19041
diff changeset
698 %!error <no valid format conversion specifiers> textscan ("1.0", "%z");