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maint: Periodic merge of stable to gui-release.
author John W. Eaton <jwe@octave.org>
date Tue, 20 Jan 2015 10:05:42 -0500
parents 589354cf668f 446c46af4b42
children 0e1f5a750d00
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1 ## Copyright (C) 2009-2013 Eric Chassande-Mottin, CNRS (France)
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2 ## Parts Copyright (C) 2012 Philip Nienhuis
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {[@var{a}, @dots{}] =} strread (@var{str})
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22 ## @deftypefnx {Function File} {[@var{a}, @dots{}] =} strread (@var{str}, @var{format})
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23 ## @deftypefnx {Function File} {[@var{a}, @dots{}] =} strread (@var{str}, @var{format}, @var{format_repeat})
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24 ## @deftypefnx {Function File} {[@var{a}, @dots{}] =} strread (@var{str}, @var{format}, @var{prop1}, @var{value1}, @dots{})
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25 ## @deftypefnx {Function File} {[@var{a}, @dots{}] =} strread (@var{str}, @var{format}, @var{format_repeat}, @var{prop1}, @var{value1}, @dots{})
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26 ## Read data from a string.
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27 ##
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28 ## The string @var{str} is split into words that are repeatedly matched to the
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29 ## specifiers in @var{format}. The first word is matched to the first
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30 ## specifier, the second to the second specifier and so forth. If there are
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31 ## more words than specifiers, the process is repeated until all words have
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32 ## been processed.
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33 ##
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34 ## The string @var{format} describes how the words in @var{str} should be
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35 ## parsed.
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36 ## It may contain any combination of the following specifiers:
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37 ##
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38 ## @table @code
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39 ## @item %s
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40 ## The word is parsed as a string.
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41 ##
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42 ## @item %f
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43 ## @itemx %n
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44 ## The word is parsed as a number and converted to double.
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45 ##
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46 ## @item %d
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47 ## @itemx %u
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48 ## The word is parsed as a number and converted to int32.
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49 ##
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50 ## @item %*', '%*f', '%*s
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51 ## The word is skipped.
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52 ##
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53 ## For %s and %d, %f, %n, %u and the associated %*s @dots{} specifiers an
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54 ## optional width can be specified as %Ns, etc. where N is an integer > 1.
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55 ## For %f, format specifiers like %N.Mf are allowed.
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56 ##
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57 ## @item literals
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58 ## In addition the format may contain literal character strings; these will be
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59 ## skipped during reading.
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60 ## @end table
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61 ##
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62 ## Parsed word corresponding to the first specifier are returned in the first
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63 ## output argument and likewise for the rest of the specifiers.
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64 ##
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65 ## By default, @var{format} is @t{"%f"}, meaning that numbers are read from
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66 ## @var{str}. This will do if @var{str} contains only numeric fields.
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67 ##
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68 ## For example, the string
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69 ##
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70 ## @example
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71 ## @group
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72 ## @var{str} = "\
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73 ## Bunny Bugs 5.5\n\
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74 ## Duck Daffy -7.5e-5\n\
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75 ## Penguin Tux 6"
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76 ## @end group
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77 ## @end example
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78 ##
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79 ## @noindent
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80 ## can be read using
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81 ##
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82 ## @example
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83 ## [@var{a}, @var{b}, @var{c}] = strread (@var{str}, "%s %s %f");
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84 ## @end example
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85 ##
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86 ## Optional numeric argument @var{format_repeat} can be used for
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87 ## limiting the number of items read:
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88 ##
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89 ## @table @asis
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90 ## @item -1
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91 ## (default) read all of the string until the end.
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92 ##
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93 ## @item N
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94 ## Read N times @var{nargout} items. 0 (zero) is an acceptable
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95 ## value for @var{format_repeat}.
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96 ## @end table
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97 ##
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98 ## The behavior of @code{strread} can be changed via property-value
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99 ## pairs. The following properties are recognized:
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100 ##
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101 ## @table @asis
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102 ## @item @qcode{"commentstyle"}
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103 ## Parts of @var{str} are considered comments and will be skipped.
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104 ## @var{value} is the comment style and can be any of the following.
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105 ##
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106 ## @itemize
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107 ## @item @qcode{"shell"}
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108 ## Everything from @code{#} characters to the nearest end-of-line is skipped.
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109 ##
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110 ## @item @qcode{"c"}
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111 ## Everything between @code{/*} and @code{*/} is skipped.
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112 ##
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113 ## @item @qcode{"c++"}
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114 ## Everything from @code{//} characters to the nearest end-of-line is skipped.
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115 ##
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116 ## @item @qcode{"matlab"}
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117 ## Everything from @code{%} characters to the nearest end-of-line is skipped.
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118 ##
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119 ## @item user-supplied. Two options:
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120 ## (1) One string, or 1x1 cell string: Skip everything to the right of it;
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121 ## (2) 2x1 cell string array: Everything between the left and right strings
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122 ## is skipped.
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123 ## @end itemize
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124 ##
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125 ## @item @qcode{"delimiter"}
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126 ## Any character in @var{value} will be used to split @var{str} into words
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127 ## (default value = any whitespace).
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128 ##
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129 ## @item @qcode{"emptyvalue"}:
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130 ## Value to return for empty numeric values in non-whitespace delimited data.
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131 ## The default is NaN@. When the data type does not support NaN
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132 ## (int32 for example), then default is zero.
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133 ##
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134 ## @item @qcode{"multipledelimsasone"}
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135 ## Treat a series of consecutive delimiters, without whitespace in between,
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136 ## as a single delimiter. Consecutive delimiter series need not be vertically
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137 ## @qcode{"aligned"}.
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138 ##
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139 ## @item @qcode{"treatasempty"}
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140 ## Treat single occurrences (surrounded by delimiters or whitespace) of the
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141 ## string(s) in @var{value} as missing values.
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142 ##
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143 ## @item @qcode{"returnonerror"}
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144 ## If @var{value} true (1, default), ignore read errors and return normally.
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145 ## If false (0), return an error.
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146 ##
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147 ## @item @qcode{"whitespace"}
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148 ## Any character in @var{value} will be interpreted as whitespace and
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149 ## trimmed; the string defining whitespace must be enclosed in double
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150 ## quotes for proper processing of special characters like \t.
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151 ## The default value for whitespace = @qcode{" \b\r\n\t"} (note the space).
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152 ## Unless whitespace is set to '' (empty) AND at least one @qcode{"%s"} format
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153 ## conversion specifier is supplied, a space is always part of whitespace.
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154 ##
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155 ## @end table
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156 ##
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157 ## When the number of words in @var{str} doesn't match an exact multiple
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158 ## of the number of format conversion specifiers, strread's behavior
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159 ## depends on the last character of @var{str}:
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160 ##
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161 ## @table @asis
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162 ## @item last character = @qcode{"\n"}
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163 ## Data columns are padded with empty fields or Nan so that all columns
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164 ## have equal length
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165 ##
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166 ## @item last character is not @qcode{"\n"}
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167 ## Data columns are not padded; strread returns columns of unequal length
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168 ##
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169 ## @end table
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170 ##
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171 ## @seealso{textscan, textread, load, dlmread, fscanf}
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172 ## @end deftypefn
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173
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174 function varargout = strread (str, format = "%f", varargin)
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175
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176 ## Check input
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177 if (nargin < 1)
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178 print_usage ();
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179 endif
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180
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181 if (isempty (str))
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182 ## Return empty args (no match), rather than raising an error
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183 varargout = cell (1, nargout);
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184 return;
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185 endif
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186
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187 if (isempty (format))
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188 format = "%f";
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189 endif
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190
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191 if (! ischar (str) || ! ischar (format))
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192 error ("strread: STR and FORMAT arguments must be strings");
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193 endif
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194
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195 if (strcmp (typeinfo (format), "sq_string"))
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196 format = do_string_escapes (format);
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197 endif
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198
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199 ## Parse format string to compare number of conversion fields and nargout
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200 nfields = length (strfind (format, "%")) - length (strfind (format, "%*"));
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201 ## If str only has numeric fields, a (default) format ("%f") will do.
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202 ## Otherwise:
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203 if ((max (nargout, 1) != nfields) && ! strcmp (format, "%f"))
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204 error ("strread: the number of output variables must match that specified by FORMAT");
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205 endif
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206
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207 ## Check for format string repeat count
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208 format_repeat_count = -1;
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209 if (nargin > 2 && isnumeric (varargin{1}))
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210 if (varargin{1} >= 0)
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211 format_repeat_count = varargin{1};
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212 endif
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213 if (nargin > 3)
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214 varargin = varargin(2:end);
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215 else
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216 varargin = {};
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217 endif
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218 endif
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219
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220 ## Parse options. First initialize defaults
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221 comment_flag = false;
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222 delimiter_str = "";
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223 empty_str = "";
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224 eol_char = "";
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225 err_action = 0;
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226 mult_dlms_s1 = false;
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227 numeric_fill_value = NaN;
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228 white_spaces = " \b\r\n\t";
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229 for n = 1:2:length (varargin)
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230 switch (lower (varargin{n}))
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231 case "bufsize"
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232 ## We could synthesize this, but that just seems weird...
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233 warning ("strread: property 'bufsize' is not implemented");
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234 case "commentstyle"
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235 comment_flag = true;
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236 switch (lower (varargin{n+1}))
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237 case "c"
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238 [comment_start, comment_end] = deal ("/*", "*/");
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239 case "c++"
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diff changeset
240 [comment_start, comment_end] = deal ("//", "eol_char");
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parents:
diff changeset
241 case "shell"
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diff changeset
242 [comment_start, comment_end] = deal ("#" , "eol_char");
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parents:
diff changeset
243 case "matlab"
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diff changeset
244 [comment_start, comment_end] = deal ("%" , "eol_char");
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diff changeset
245 otherwise
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diff changeset
246 if (ischar (varargin{n+1}) ||
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diff changeset
247 (numel (varargin{n+1}) == 1 && iscellstr (varargin{n+1})))
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diff changeset
248 [comment_start, comment_end] = deal (char (varargin{n+1}), "eol_char");
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diff changeset
249 elseif (iscellstr (varargin{n+1}) && numel (varargin{n+1}) == 2)
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diff changeset
250 [comment_start, comment_end] = deal (varargin{n+1}{:});
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diff changeset
251 else
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diff changeset
252 ## FIXME - a user may have numeric values specified: {'//', 7}
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diff changeset
253 ## this will lead to an error in the warning message
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
254 error ("strread: unknown or unrecognized comment style '%s'",
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diff changeset
255 varargin{n+1});
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diff changeset
256 endif
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parents:
diff changeset
257 endswitch
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
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parents:
diff changeset
258 case "delimiter"
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
259 delimiter_str = varargin{n+1};
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
260 if (strcmp (typeinfo (delimiter_str), "sq_string"))
13715
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parents: 13176
diff changeset
261 delimiter_str = do_string_escapes (delimiter_str);
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
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parents: 13176
diff changeset
262 endif
9746
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parents:
diff changeset
263 case "emptyvalue"
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diff changeset
264 numeric_fill_value = varargin{n+1};
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
265 case "expchars"
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diff changeset
266 warning ("strread: property 'expchars' is not implemented");
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parents:
diff changeset
267 case "whitespace"
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diff changeset
268 white_spaces = varargin{n+1};
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parents: 13715
diff changeset
269 if (strcmp (typeinfo (white_spaces), "sq_string"))
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parents: 13176
diff changeset
270 white_spaces = do_string_escapes (white_spaces);
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
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parents: 13176
diff changeset
271 endif
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diff changeset
272 ## The following parameters are specific to textscan and textread
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diff changeset
273 case "endofline"
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diff changeset
274 eol_char = varargin{n+1};
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diff changeset
275 if (strcmp (typeinfo (eol_char), "sq_string"))
13715
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diff changeset
276 eol_char = do_string_escapes (eol_char);
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
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parents: 13176
diff changeset
277 endif
12866
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diff changeset
278 case "returnonerror"
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diff changeset
279 err_action = varargin{n+1};
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diff changeset
280 case "multipledelimsasone"
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diff changeset
281 mult_dlms_s1 = varargin{n+1};
12866
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
282 case "treatasempty"
12879
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
283 if (iscellstr (varargin{n+1}))
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Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
284 empty_str = varargin{n+1};
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
285 elseif (ischar (varargin{n+1}))
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
286 empty_str = varargin(n+1);
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
287 else
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diff changeset
288 error ("strread: 'treatasempty' value must be string or cellstr");
12866
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diff changeset
289 endif
9746
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parents:
diff changeset
290 otherwise
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diff changeset
291 warning ("strread: unknown property '%s'", varargin{n});
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diff changeset
292 endswitch
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
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diff changeset
293 endfor
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
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parents:
diff changeset
294
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diff changeset
295 ## First parse of FORMAT
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diff changeset
296 if (strcmpi (strtrim (format), "%f"))
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diff changeset
297 ## Default format specified. Expand it (to desired nargout)
16306
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
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parents: 16094
diff changeset
298 fmt_words = cell (max (nargout, 1), 1);
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
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diff changeset
299 fmt_words (1:max (nargout, 1)) = format;
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diff changeset
300 else
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diff changeset
301 ## Determine the number of words per line as a first guess. Forms
12891
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diff changeset
302 ## like %f<literal>) (w/o delimiter in between) are fixed further on
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diff changeset
303 format = strrep (format, "%", " %");
14835
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diff changeset
304 fmt_words = regexp (format, '[^ ]+', "match");
19627
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 18894
diff changeset
305
14835
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diff changeset
306 ## Find position of conversion specifiers (they start with %)
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parents: 14802
diff changeset
307 idy2 = find (! cellfun ("isempty", regexp (fmt_words, '^%')));
14802
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
308
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
309 ## Check for unsupported format specifiers
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
310 errpat = '(\[.*\]|[cq]|[nfdu]8|[nfdu]16|[nfdu]32|[nfdu]64)';
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
311 if (! all (cellfun ("isempty", regexp (fmt_words(idy2), errpat))))
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
312 error ("strread: %q, %c, %[] or bit width format specifiers are not supported yet.");
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
313 endif
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
314
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diff changeset
315 ## Format conversion specifiers following literals w/o space/delim
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diff changeset
316 ## in between are separate now. Separate those w trailing literals
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diff changeset
317 a = strfind (fmt_words(idy2), "%");
14835
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diff changeset
318 b = regexp (fmt_words(idy2), '[nfdus]', "end");
12866
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diff changeset
319 for jj = 1:numel (a)
14835
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diff changeset
320 ## From right to left to avoid losing track
12866
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
321 ii = numel (a) - jj + 1;
16571
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
322 ## Check for illegal format specifiers
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
323 if (isempty (b{ii}))
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
324 error ("strread: unknown format specifier #%d ('%s')\n",
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
325 ii, fmt_words{idy2(ii)});
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
326 endif
12866
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diff changeset
327 if (! (length (fmt_words{idy2(ii)}) == b{ii}(1)))
14835
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diff changeset
328 ## Split fmt_words(ii) into % conv specifier and trailing literal
12866
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
329 fmt_words(idy2(ii)+1 : end+1) = fmt_words(idy2(ii) : end);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
330 fmt_words{idy2(ii)} = fmt_words{idy2(ii)}(a{ii} : b{ii}(1));
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
331 fmt_words{idy2(ii)+1} = fmt_words{idy2(ii)+1}(b{ii}+1:end);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
332 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
333 endfor
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
334 endif
11127
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
335 num_words_per_line = numel (fmt_words);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
336
12891
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diff changeset
337 ## Special handling for CRLF EOL character in str
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
338 if (! isempty (eol_char) && strcmp (eol_char, "\r\n"))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
339 ## Strip CR from CRLF sequences
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
340 str = strrep (str, "\r\n", "\n");
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
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diff changeset
341 ## CR serves no further purpose in function
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
342 eol_char = "\n";
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diff changeset
343 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
344
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diff changeset
345 ## Remove comments in str
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
346 if (comment_flag)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
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diff changeset
347 ## Expand 'eol_char' here, after option processing which may have set value
14835
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diff changeset
348 comment_end = regexprep (comment_end, "eol_char", eol_char);
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f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
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diff changeset
349 cstart = strfind (str, comment_start);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
350 cstop = strfind (str, comment_end);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
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diff changeset
351 ## Treat end of string as additional comment stop
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
352 if (isempty (cstop) || cstop(end) != length (str))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
353 cstop(end+1) = length (str);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
354 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
355 if (! isempty (cstart))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
356 ## Ignore nested openers.
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
357 [idx, cidx] = unique (lookup (cstop, cstart), "first");
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
358 if (idx(end) == length (cstop))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
359 cidx(end) = []; # Drop the last one if orphaned.
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
360 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
361 cstart = cstart(cidx);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
362 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
363 if (! isempty (cstop))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
364 ## Ignore nested closers.
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
365 [idx, cidx] = unique (lookup (cstart, cstop), "first");
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
366 if (idx(1) == 0)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
367 cidx(1) = []; # Drop the first one if orphaned.
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
368 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
369 cstop = cstop(cidx);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
370 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
371 len = length (str);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
372 c2len = length (comment_end);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
373 str = cellslices (str, [1, cstop + c2len], [cstart - 1, len]);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
374 str = [str{:}];
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
375 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
376
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
377 if (! isempty (white_spaces))
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
378 ## For numeric fields, whitespace is always a delimiter, but not for text
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
379 ## fields
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
380 if (isempty (strfind (format, "%s")))
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
381 ## Add whitespace to delimiter set
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
382 delimiter_str = unique ([white_spaces delimiter_str]);
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
383 else
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
384 ## Remove any delimiter chars from white_spaces list
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
385 white_spaces = setdiff (white_spaces, delimiter_str);
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
386 endif
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
387 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
388 if (isempty (delimiter_str))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
389 delimiter_str = " ";
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
390 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
391 if (! isempty (eol_char))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
392 ## Add eol_char to delimiter collection
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
393 delimiter_str = unique ([delimiter_str eol_char]);
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
394 ## .. and remove it from whitespace collection
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
395 white_spaces = strrep (white_spaces, eol_char, '');
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
396 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
397
18893
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
398 ii = numel (fmt_words);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
399 while (ii > 0)
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
400 if (ismember (fmt_words{ii}, delimiter_str)(1))
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
401 fmt_words(ii) = [];
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
402 --num_words_per_line;
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
403 endif
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
404 --ii;
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
405 endwhile
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
406
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
407 pad_out = 0;
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
408 ## Trim whitespace if needed
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
409 if (! isempty (white_spaces))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
410 ## Check if trailing "\n" might signal padding output arrays to equal size
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
411 ## before it is trimmed away below
18146
f8b7e8483b88 avoid possible num-to-str warnings from strread.m
John W. Eaton <jwe@octave.org>
parents: 17744
diff changeset
412 if (str(end) == "\n" && nargout > 1)
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
413 pad_out = 1;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
414 endif
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
415 ## Condense all repeated whitespace into one single space
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
416 ## FIXME: this will also fold repeated whitespace in a char field
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
417 rxp_wsp = sprintf ("[%s]+", white_spaces);
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
418 str = regexprep (str, rxp_wsp, ' ');
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
419 ## Remove possible leading space at string
18146
f8b7e8483b88 avoid possible num-to-str warnings from strread.m
John W. Eaton <jwe@octave.org>
parents: 17744
diff changeset
420 if (str(1) == " ")
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
421 str = str(2:end);
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
422 endif
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
423 ## Check for single delimiter followed/preceded by whitespace
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
424 if (! isempty (delimiter_str))
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
425 dlmstr = setdiff (delimiter_str, " ");
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
426 if (! isempty (dlmstr))
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
427 rxp_dlmwsp = sprintf ('( [%s] | [%s]|[%s] )', dlmstr, dlmstr, dlmstr);
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
428 str = regexprep (str, rxp_dlmwsp, delimiter_str(1));
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
429 endif
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
430 endif
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
431 ## Wipe leading and trailing whitespace on each line (it may be
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
432 ## delimiter too)
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
433 ## FIXME: Double strrep on str is enormously expensive of CPU time.
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
434 ## Can this be eliminated
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
435 if (! isempty (eol_char))
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
436 str = strrep (str, [eol_char " "], eol_char);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
437 str = strrep (str, [" " eol_char], eol_char);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
438 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
439 endif
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11575
diff changeset
440
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
441 ## Split 'str' into words
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
442 words = split_by (str, delimiter_str, mult_dlms_s1, eol_char);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
443 if (! isempty (white_spaces))
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
444 ## Trim leading and trailing 'white_spaces'. All whitespace has
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
445 ## been converted to space above
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
446 words = strtrim (words);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
447 endif
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
448 num_words = numel (words);
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
449 ## First guess at nr. of lines in file (ignoring leading/trailing literals)
12879
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
450 num_lines = ceil (num_words / num_words_per_line);
11587
c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11575
diff changeset
451
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
452 ## Replace TreatAsEmpty char sequences by empty strings
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
453 if (! isempty (empty_str))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
454 for ii = 1:numel (empty_str)
14213
a022c04f68cc Replace to-be-deprecated strmatch occurrences with alternate code.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
455 idz = strncmp (empty_str{ii}, words, length (empty_str{ii}));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
456 words(idz) = {""};
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
457 endfor
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
458 endif
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
459
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
460 ## fmt_words has been split properly now, but words{} has only been split on
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
461 ## delimiter positions. As numeric fields can also be separated by
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
462 ## whitespace, more splits may be needed.
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
463 ## We also don't know the number of lines (as EndOfLine may have been set to
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
464 ## "" (empty) by the caller).
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
465 ##
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
466 ## We also may have to cope with 3 cases as far as literals go:
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
467 ## A: Trailing literals (%f<literal>) w/o delimiter in between.
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
468 ## B: Leading literals (<literal>%f) w/o delimiter in between.
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
469 ## C. Skipping leftover parts of specified skip fields (%*N )
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
470 ## Some words columns may have to be split further to fix these.
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
471 ## To find out, we'll match fmt_words to the words array to see what
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
472 ## needs to be done. fwptr tracks which {fmt_words}# starts in what {words}#
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
473
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
474 ## Find indices and pointers to possible literals in fmt_words
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
475 idf = cellfun ("isempty", strfind (fmt_words, "%"));
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
476 ## Find indices and pointers to conversion specifiers with fixed width
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
477 idg = ! cellfun ("isempty", regexp (fmt_words, '%\*?\d'));
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
478 idy = find (idf | idg);
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
479 ## Find indices to numeric conversion specifiers
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
480 idn = ! cellfun ("isempty", regexp (fmt_words, '%[dnfu]'));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
481
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
482 ## If needed, split up columns in three steps:
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
483 if (! isempty (idy))
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
484 ## Try-catch because complexity of strings to read can be infinite
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
485 try
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
486
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
487 ## 1. Assess "period" in the split-up words array ( < num_words_per_line).
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
488 ## Could be done using EndOfLine but that prohibits EndOfLine = "" option.
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
489 ## Alternative below goes by simply parsing a first grab of words
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
490 ## and matching fmt_words to words until the fmt_words array is exhausted.
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
491 ## iwrd: ptr to current analyzed word; iwrdp: ptr to pos before analyzed char
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
492 iwrd = 1; iwrdp = 0; iwrdl = length (words{1});
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
493 fwptr = zeros (1, numel (fmt_words));
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
494 ii = 1;
16933
e39f00a32dc7 maint: Use parentheses around condition for switch(),while(),if() statements.
Rik <rik@octave.org>
parents: 16724
diff changeset
495 while (ii <= numel (fmt_words))
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
496
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
497 nxt_wrd = 0;
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
498 ## Keep track of which words nr. every fmt_words{} is (starts) in.
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
499 fwptr(ii) = iwrd;
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
500
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
501 if (idf(ii))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
502 ## Literal expected
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
503 if (isempty (strfind (fmt_words{ii}, words(iwrd))))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
504 ## Not found in current word; supposed to be in next word
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
505 nxt_wrd = 1;
12891
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
506 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
507 ## Found it in current word. Subtract literal length
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
508 iwrdp += length (fmt_words{ii});
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
509 if (iwrdp > iwrdl)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
510 ## Parse error. Literal extends beyond delimiter (word boundary)
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
511 warning ("strread: literal '%s' (fmt spec # %d) does not match data", ...
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
512 fmt_words{ii}, ii);
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
513 ## Word assumed to be completely "used up". Next word
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
514 nxt_wrd = 1;
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
515 elseif (iwrdp == iwrdl)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
516 ## Word completely "used up". Next word
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
517 nxt_wrd = 1;
12891
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Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
518 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
519 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
520
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
521 elseif (idg(ii))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
522 ## Fixed width specifier (%N or %*N): read just a part of word
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
523 sw = regexp (fmt_words{ii}, '\d', "once");
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
524 ew = regexp (fmt_words{ii}, '[nfuds]') - 1;
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
525 iwrdp += floor (str2double (fmt_words{ii}(sw:ew)));
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
526 if (iwrdp > iwrdl)
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
527 ## Match error. Field extends beyond word boundary.
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
528 warning ...
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
529 ("strread: field width '%s' (fmt spec # %d) extends beyond actual word limit", ...
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
530 fmt_words{ii}, ii);
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
531 ## Assume word to be completely "used up". Next word
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
532 nxt_wrd = 1;
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
533 elseif (iwrdp == iwrdl)
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
534 ## Word completely "used up". Next word
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
535 nxt_wrd = 1;
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
536 endif
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
537
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
538 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
539 ## A simple format conv. specifier. Either (1) uses rest of word, or
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
540 ## (2) is squeezed between current iwrdp and next literal, or (3) uses
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
541 ## next word. (3) is already taken care of. So just check (1) & (2)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
542 if (ii < numel (fmt_words) && idf(ii+1))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
543 ## Next fmt_word is a literal...
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
544 if (! index (words{iwrd}(iwrdp+1:end), fmt_words{ii+1}))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
545 ## ...but not found in current word => field uses rest of word
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
546 nxt_wrd = 1;
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
547 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
548 ## ..or it IS found. Add inferred width of current conversion field
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
549 iwrdp += index (words{iwrd}(iwrdp+1:end), fmt_words{ii+1}) - 1;
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
550 endif
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
551 elseif (iwrdp <= iwrdl)
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
552 ## No bordering literal to the right => field occupies (rest of) word
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
553 nxt_wrd = 1;
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
554 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
555
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
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diff changeset
556 endif
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
557
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
558 if (nxt_wrd)
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
559 ++iwrd; iwrdp = 0;
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
560 if (iwrd > numel (words))
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
561 ## Apparently EOF; assume incomplete row already at L.1 of data
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
562 ii = numel (fmt_words);
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
563 elseif (ii < numel (fmt_words) && iwrd <= numel (words))
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
564 iwrdl = length (words{iwrd});
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
565 endif
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
566 endif
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
567
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
568 ++ii;
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
569
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
570 endwhile
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
571 ## Done
12940
3509cf60d1f6 strread.m: %Ns conversion format now honors user specified width (Bug #33950).
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 12931
diff changeset
572 words_period = max (iwrd - 1, 1);
12879
c3b305e7e59f maint: Reverse previous changeset 875c735c0929
Rik <octave@nomad.inbox5.com>
parents: 12878
diff changeset
573 num_lines = ceil (num_words / words_period);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
574
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
575 ## 2. Pad words array so that it can be reshaped
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
576 num_words_padded = num_lines * words_period - num_words;
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
577 if (num_words_padded)
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
578 words = [words'; cell(num_words_padded, 1)];
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
579 endif
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
580 words = reshape (words, words_period, num_lines);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
581
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
582 ## 3. Do the column splitting on rectangular words array
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
583 icol = 1; ii = 1; # icol = current column, ii = current fmt_word
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
584 while (ii <= num_words_per_line)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
585
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
586 ## Check if fmt_words(ii) contains a literal or fixed-width
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
587 if ((idf(ii) || idg(ii)) && (rows (words) < num_words_per_line))
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
588 if (idf(ii))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
589 s = strfind (words(icol, 1), fmt_words{ii});
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
590 if (isempty (s{:}))
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
591 error ("strread: Literal '%s' not found in column %d", fmt_words{ii}, icol);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
592 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
593 s = s{:}(1);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
594 e = s(1) + length (fmt_words{ii}) - 1;
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
595 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
596 if (! strcmp (fmt_words{ii}, words{icol, 1}))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
597 ## Column doesn't exactly match literal => split needed. Insert a column
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
598 words(icol+1:end+1, :) = words(icol:end, :);
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
599 ## Watch out for empty cells
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
600 jptr = find (! cellfun ("isempty", words(icol, :)));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
601
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
602 ## Distinguish leading or trailing literals
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
603 if (! idg(ii) && ! isempty (s) && s(1) == 1)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
604 ## Leading literal. Assign literal to icol, paste rest in icol + 1
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
605 ## Apply only to those cells that do have something beyond literal
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
606 jptr = find (cellfun ("length", words(icol+1, jptr), ...
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
607 "UniformOutput", false) > e(1));
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
608 words(icol+1, :) = {""};
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
609 words(icol+1, jptr) = cellfun ...
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
610 (@(x) substr (x, e(1)+1, length (x) - e(1)), words(icol, jptr), ...
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
611 "UniformOutput", false);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
612 words(icol, jptr) = fmt_words{ii};
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
613 fwptr = [fwptr(1:ii) (++fwptr(ii+1:end))];
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
614
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
615 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
616 if (! idg(ii) && ! isempty (strfind (fmt_words{ii-1}, "%s")))
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
617 ## Trailing literal. If preceding format == '%s' this is an error
15855
4294430ef736 strread: make warning mesage more tractable
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15844
diff changeset
618 warning ...
4294430ef736 strread: make warning mesage more tractable
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 15844
diff changeset
619 ("strread: ambiguous '%s' specifier next to literal in column %d", icol);
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
620 elseif (idg(ii))
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
621 ## Current field = fixed width. Strip into icol, rest in icol+1
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
622 sw = regexp (fmt_words{ii}, '\d', "once");
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
623 ew = regexp (fmt_words{ii}, '[nfuds]') - 1;
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
624 wdth = floor (str2double (fmt_words{ii}(sw:ew)));
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
625 words(icol+1, jptr) = cellfun (@(x) x(wdth+1:end),
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
626 words(icol,jptr), "UniformOutput", false);
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
627 if (isempty ([words(icol+1, :){:}]))
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
628 ## Apparently split wasn't needed as turns out to cover
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
629 ## entire column. So delete column again
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
630 words(icol+1, :) = [];
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
631 else
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
632 words(icol, jptr) = strtrunc (words(icol, jptr), wdth);
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
633 fwptr = [fwptr(1:ii) (++fwptr(ii+1:end))];
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
634 endif
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
635 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
636 ## FIXME: this assumes char(254)/char(255) won't occur in input!
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
637 clear wrds;
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
638 wrds(1:2:2*numel (words(icol, jptr))) = ...
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
639 strrep (words(icol, jptr), fmt_words{ii}, ...
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
640 [char(255) char(254)]);
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
641 wrds(2:2:2*numel (words(icol, jptr))-1) = char (255);
16724
b7667fcb9fbc Substitute ostrsplit() for strsplit().
Ben Abbott <bpabbott@mac.com>
parents: 16571
diff changeset
642 wrds = ostrsplit ([wrds{:}], char (255));
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
643 words(icol, jptr) = ...
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
644 wrds(find (cellfun ("isempty", strfind (wrds, char (254)))));
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
645 wrds(find (cellfun ("isempty", strfind (wrds, char (254))))) ...
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
646 = char (255);
16724
b7667fcb9fbc Substitute ostrsplit() for strsplit().
Ben Abbott <bpabbott@mac.com>
parents: 16571
diff changeset
647 words(icol+1, jptr) = ostrsplit (strrep ([wrds{2:end}], ...
b7667fcb9fbc Substitute ostrsplit() for strsplit().
Ben Abbott <bpabbott@mac.com>
parents: 16571
diff changeset
648 char (254), fmt_words{ii}), char (255));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
649 ## Former trailing literal may now be leading for next specifier
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
650 --ii;
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
651 fwptr = [fwptr(1:ii) (++fwptr(ii+1:end))];
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
652 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
653 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
654 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
655
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
656 else
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
657 ## Conv. specifier. Peek if next fmt_word needs split from current column
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
658 if (ii < num_words_per_line)
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
659 if (fwptr(ii) == fwptr(ii+1))
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
660 --icol;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
661 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
662 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
663 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
664 ## Next fmt_word, next column
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
665 ++ii; ++icol;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
666 endwhile
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
667
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
668 ## Done. Reshape words back into 1 long vector and strip padded empty words
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
669 words = reshape (words, 1, numel (words))(1 : end-num_words_padded);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
670
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
671 catch
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
672 warning ("strread: unable to parse text or file with given format string");
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
673 return;
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
674
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
675 end_try_catch
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
676 endif
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
677
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
678 ## For each specifier, process corresponding column
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
679 k = 1;
11127
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
680 for m = 1:num_words_per_line
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
681 try
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
682 if (format_repeat_count < 0)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
683 data = words(m:num_words_per_line:end);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
684 elseif (format_repeat_count == 0)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
685 data = {};
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
686 else
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
687 lastline = ...
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
688 min (num_words_per_line * format_repeat_count + m - 1, numel (words));
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
689 data = words(m:num_words_per_line:lastline);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
690 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
691
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
692 ## Map to format
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
693 ## FIXME - add support for formats like "<%s>", "%[a-zA-Z]"
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
694 ## Someone with regexp experience is needed.
16933
e39f00a32dc7 maint: Use parentheses around condition for switch(),while(),if() statements.
Rik <rik@octave.org>
parents: 16724
diff changeset
695 switch (fmt_words{m}(1:min (2, length (fmt_words{m}))))
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
696 case "%s"
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
697 if (pad_out)
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
698 data(end+1:num_lines) = {""};
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
699 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
700 varargout{k} = data';
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
701 k++;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
702 case {"%d", "%u", "%f", "%n"}
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
703 n = cellfun ("isempty", data);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
704 ### FIXME - erroneously formatted data lead to NaN, not an error
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
705 data = str2double (data);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
706 if (! isempty (regexp (fmt_words{m}, "%[du]")))
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
707 ## Cast to integer
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
708 ## FIXME: NaNs will be transformed into zeros
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
709 data = int32 (data);
13176
9b8e786bbf3c maint: use specific endif, endfor tokens instead of simple end
John W. Eaton <jwe@octave.org>
parents: 13141
diff changeset
710 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
711 data(n) = numeric_fill_value;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
712 if (pad_out)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
713 data(end+1:num_lines) = numeric_fill_value;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
714 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
715 varargout{k} = data.';
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
716 k++;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
717 case {"%0", "%1", "%2", "%3", "%4", "%5", "%6", "%7", "%8", "%9"}
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
718 sw = regexp (fmt_words{m}, '\d', "once");
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
719 ew = regexp (fmt_words{m}, '[nfudsq]') - 1;
16724
b7667fcb9fbc Substitute ostrsplit() for strsplit().
Ben Abbott <bpabbott@mac.com>
parents: 16571
diff changeset
720 nfmt = ostrsplit (fmt_words{m}(2:ew), ".");
12873
e8c8e118a1e6 Small touchups to textscan and strread revamp
Rik <octave@nomad.inbox5.com>
parents: 12866
diff changeset
721 swidth = str2double (nfmt{1});
16933
e39f00a32dc7 maint: Use parentheses around condition for switch(),while(),if() statements.
Rik <rik@octave.org>
parents: 16724
diff changeset
722 switch (fmt_words{m}(ew+1))
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
723 case {"d", "u", "f", "n"}
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
724 n = cellfun ("isempty", data);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
725 ### FIXME - erroneously formatted data lead to NaN, not an error
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
726 ### => ReturnOnError can't be implemented for numeric data
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
727 data = str2double (strtrunc (data, swidth));
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
728 data(n) = numeric_fill_value;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
729 if (pad_out)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
730 data(end+1:num_lines) = numeric_fill_value;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
731 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
732 if (numel (nfmt) > 1)
12873
e8c8e118a1e6 Small touchups to textscan and strread revamp
Rik <octave@nomad.inbox5.com>
parents: 12866
diff changeset
733 sprec = str2double (nfmt{2});
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
734 data = 10^-sprec * round (10^sprec * data);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
735 elseif (! isempty (regexp (fmt_words{m}, "[du]")))
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
736 ## Cast to integer
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
737 ## FIXME: NaNs will be transformed into zeros
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
738 data = int32 (data);
13176
9b8e786bbf3c maint: use specific endif, endfor tokens instead of simple end
John W. Eaton <jwe@octave.org>
parents: 13141
diff changeset
739 endif
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
740 varargout{k} = data.';
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
741 k++;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
742 case "s"
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
743 if (pad_out)
14317
7dee2bb231c1 strread.m: Fix missing semicolon and unnecessary "unable to parse" messages (Bug #35418).
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14138
diff changeset
744 data(end+1:num_lines) = {""};
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
745 endif
12940
3509cf60d1f6 strread.m: %Ns conversion format now honors user specified width (Bug #33950).
Philip Nienhuis <prnienhuis@@users.sf.net>
parents: 12931
diff changeset
746 varargout{k} = strtrunc (data, swidth)';
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
747 k++;
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
748 otherwise
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
749 endswitch
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
750 case {"%*", "%*s"}
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
751 ## skip the word
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
752 otherwise
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
753 ## Ensure descriptive content is consistent.
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
754 ## Test made a bit lax to accomodate for incomplete last lines
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
755 n = find (! cellfun ("isempty", data));
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
756 if (numel (unique (data(n))) > 1
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
757 || ! strcmpi (unique (data), fmt_words{m}))
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
758 error ("strread: FORMAT does not match data");
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
759 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
760 endswitch
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
761 catch
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
762 ## As strread processes columnwise, ML-compatible error processing
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
763 ## (row after row) is not feasible. In addition Octave sets unrecognizable
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
764 ## numbers to NaN w/o error. But maybe Octave is better in this respect.
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
765 if (err_action)
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
766 ## Just try the next column where ML bails out
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
767 else
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
768 rethrow (lasterror);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
769 endif
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
770 end_try_catch
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
771 endfor
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
772
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
773 endfunction
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
774
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
775 function out = split_by (text, sep, mult_dlms_s1, eol_char)
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
776
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
777 ## Check & if needed, process MultipleDelimsAsOne parameter
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
778 if (mult_dlms_s1)
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
779 mult_dlms_s1 = true;
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
780 ## FIXME: Should re-implement strsplit() function here in order
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
781 ## to avoid strrep on megabytes of data.
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
782 ## If \n is in sep collection we need to enclose it in text
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
783 ## to avoid it being included in consecutive delim series
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
784 enchr = ' ';
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
785 ## However watch out if eol_char is also in delimiters
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
786 if (index (sep, eol_char)); enchr = char (255); endif
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
787 text = strrep (text, eol_char, [enchr eol_char enchr]);
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
788 else
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
789 mult_dlms_s1 = false;
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
790 endif
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
791
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
792 ## Split text string along delimiters
16724
b7667fcb9fbc Substitute ostrsplit() for strsplit().
Ben Abbott <bpabbott@mac.com>
parents: 16571
diff changeset
793 out = ostrsplit (text, sep, mult_dlms_s1);
14868
5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14853
diff changeset
794 if (index (sep, eol_char)); out = strrep (out, char (255), ''); endif
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
795 ## In case of trailing delimiter, strip stray last empty word
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
796 if (!isempty (out) && any (sep == text(end)))
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
797 out(end) = [];
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
798 endif
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12940
diff changeset
799
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
800 ## Empty cells converted to empty cellstrings.
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
801 out(cellfun ("isempty", out)) = {""};
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
802
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
803 endfunction
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
804
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
805
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
806 %!test
11343
5e5c513ea4c5 strread.m: Don't require space between format specifiers.
Ben Abbott <bpabbott@mac.com>
parents: 11150
diff changeset
807 %! [a, b] = strread ("1 2", "%f%f");
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
808 %! assert (a, 1);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
809 %! assert (b, 2);
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
810
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
811 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
812 %! str = "";
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
813 %! a = rand (10, 1);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
814 %! b = char (randi ([65, 85], 10, 1));
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
815 %! for k = 1:10
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
816 %! str = sprintf ("%s %.6f %s\n", str, a(k), b(k));
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
817 %! endfor
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
818 %! [aa, bb] = strread (str, "%f %s");
15844
8f0d07f8390b Fix assertions with "observed" and "expected" out of order.
Ben Abbott <bpabbott@mac.com>
parents: 15263
diff changeset
819 %! assert (aa, a, 1e-6);
8f0d07f8390b Fix assertions with "observed" and "expected" out of order.
Ben Abbott <bpabbott@mac.com>
parents: 15263
diff changeset
820 %! assert (bb, cellstr (b));
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
821
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
822 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
823 %! str = "";
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
824 %! a = rand (10, 1);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
825 %! b = char (randi ([65, 85], 10, 1));
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
826 %! for k = 1:10
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
827 %! str = sprintf ("%s %.6f %s\n", str, a(k), b(k));
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
828 %! endfor
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
829 %! aa = strread (str, "%f %*s");
15844
8f0d07f8390b Fix assertions with "observed" and "expected" out of order.
Ben Abbott <bpabbott@mac.com>
parents: 15263
diff changeset
830 %! assert (aa, a, 1e-6);
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
831
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
832 %!test
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
833 %! str = sprintf ("/* this is\nacomment*/ 1 2 3");
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
834 %! a = strread (str, "%f", "commentstyle", "c");
9746
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
835 %! assert (a, [1; 2; 3]);
31a22d48f41f scripts/io/strread.m scripts/io/textread.m: new functions
Soren Hauberg <hauberg@gmail.com>
parents:
diff changeset
836
11127
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
837 %!test
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
838 %! str = "# comment\n# comment\n1 2 3";
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
839 %! [a, b] = strread (str, "%n %s", "commentstyle", "shell", "endofline", "\n");
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
840 %! assert (a, [1; 3]);
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
841 %! assert (b, {"2"});
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
842
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
843 %!test
11127
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
844 %! str = sprintf ("Tom 100 miles/hr\nDick 90 miles/hr\nHarry 80 miles/hr");
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
845 %! fmt = "%s %f miles/hr";
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
846 %! c = cell (1, 2);
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
847 %! [c{:}] = strread (str, fmt);
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
848 %! assert (c{1}, {"Tom"; "Dick"; "Harry"})
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
849 %! assert (c{2}, [100; 90; 80])
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
850
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
851 %!test
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
852 %! a = strread ("a b c, d e, , f", "%s", "delimiter", ",");
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
853 %! assert (a, {"a b c"; "d e"; ""; "f"});
64728cd28d7a strread.m: Improve compatibility with Matlab.
Ben Abbott <bpabbott@mac.com>
parents: 11120
diff changeset
854
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
855 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
856 %! ## Bug #33536
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
857 %! [a, b, c] = strread ("1,,2", "%s%s%s", "delimiter", ",");
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
858 %! assert (a{1}, "1");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
859 %! assert (b{1}, "");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
860 %! assert (c{1}, "2");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
861
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
862 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
863 %! ## Bug #33536
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
864 %! a = strread ("[SomeText]", "[%s", "delimiter", "]");
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
865 %! assert (a{1}, "SomeText");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
867 %!test
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
868 %! dat = "Data file.\r\n= = = = =\r\nCOMPANY : <Company name>\r\n";
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
869 %! a = strread (dat, "%s", "delimiter", "\n", "whitespace", "", "endofline", "\r\n");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
870 %! assert (a{2}, "= = = = =");
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
871 %! assert (double (a{3}(end-5:end)), [32 110 97 109 101 62]);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
872
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
873 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
874 %! [a, b, c, d] = strread ("1,2,3,,5,6", "%d%f%d%f", "delimiter", ",");
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
875 %! assert (c, int32 (3));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
876 %! assert (d, NaN);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
877
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
878 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
879 %! [a, b, c, d] = strread ("1,2,3,,5,6\n", "%d%d%f%d", "delimiter", ",");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
880 %! assert (c, [3; NaN]);
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
881 %! assert (d, int32 ([0; 0]));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
882
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
883 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
884 %! ## Default format (= %f)
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
885 %1 [a, b, c] = strread ("0.12 0.234 0.3567");
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
886 %1 assert (a, 0.12);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
887 %1 assert (b, 0.234);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
888 %1 assert (c, 0.3567);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
889
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
890 %!test
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
891 %! [a, b] = strread ("0.41 8.24 3.57 6.24 9.27", "%f%f", 2, "delimiter", " ");
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
892 %1 assert (a, [0.41; 3.57]);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
893
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
894 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
895 %! ## TreatAsEmpty
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
896 %! [a, b, c, d] = strread ("1,2,3,NN,5,6\n", "%d%d%d%f", "delimiter", ",", "TreatAsEmpty", "NN");
12914
ac00ae83ea2e More compatibility improvements for textscan and strread
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12891
diff changeset
897 %! assert (c, int32 ([3; 0]));
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
898 %! assert (d, [NaN; NaN]);
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
899
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
900 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
901 %! ## No delimiters at all besides EOL. Plain reading numbers & strings
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
902 %! str = "Text1Text2Text\nText398Text4Text\nText57Text";
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
903 %! [a, b] = strread (str, "Text%dText%1sText");
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
904 %! assert (a, int32 ([1; 398; 57]));
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
905 %! assert (b(1:2), {"2"; "4"});
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
906 %! assert (isempty (b{3}), true);
12866
fe6e2afcd9ee Revamp strread, textscan, textread functions for Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12469
diff changeset
907
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
908 %% MultipleDelimsAsOne
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
909 %!test
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
910 %! str = "11, 12, 13,, 15\n21,, 23, 24, 25\n,, 33, 34, 35";
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
911 %! [a b c d] = strread (str, "%f %f %f %f", "delimiter", ",", "multipledelimsasone", 1, "endofline", "\n");
12891
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
912 %! assert (a', [11, 21, NaN]);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
913 %! assert (b', [12, 23, 33]);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
914 %! assert (c', [13, 24, 34]);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
915 %! assert (d', [15, 25, 35]);
f5a3f77d51aa strread.m, textscan.m: More Matlab compatability
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 12879
diff changeset
916
13715
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
917 %% delimiter as sq_string and dq_string
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
918 %!test
13715
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
919 %! assert (strread ("1\n2\n3", "%d", "delimiter", "\n"),
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
920 %! strread ("1\n2\n3", "%d", "delimiter", '\n'))
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
921
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
922 %% whitespace as sq_string and dq_string
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
923 %!test
13715
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
924 %! assert (strread ("1\b2\r3\b4\t5", "%d", "whitespace", "\b\r\n\t"),
f8eca611e18f When single-quoted, the strread() "delimiter", "endofline", and "whitespace"
Ben Abbott <bpabbott@mac.com>
parents: 13176
diff changeset
925 %! strread ("1\b2\r3\b4\t5", "%d", "whitespace", '\b\r\n\t'))
14096
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
926
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
927 %!test
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
928 %! str = "0.31 0.86 0.94\n 0.60 0.72 0.87";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
929 %! fmt = "%f %f %f";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
930 %! args = {"delimiter", " ", "endofline", "\n", "whitespace", " "};
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
931 %! [a, b, c] = strread (str, fmt, args {:});
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
932 %! assert (a, [0.31; 0.60], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
933 %! assert (b, [0.86; 0.72], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
934 %! assert (c, [0.94; 0.87], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
935
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
936 %!test
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
937 %! str = "0.31,0.86,0.94\n0.60,0.72,0.87";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
938 %! fmt = "%f %f %f";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
939 %! args = {"delimiter", ",", "endofline", "\n", "whitespace", " "};
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
940 %! [a, b, c] = strread (str, fmt, args {:});
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
941 %! assert (a, [0.31; 0.60], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
942 %! assert (b, [0.86; 0.72], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
943 %! assert (c, [0.94; 0.87], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
944
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
945 %!test
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
946 %! str = "0.31 0.86 0.94\n 0.60 0.72 0.87";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
947 %! fmt = "%f %f %f";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
948 %! args = {"delimiter", ",", "endofline", "\n", "whitespace", " "};
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
949 %! [a, b, c] = strread (str, fmt, args {:});
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
950 %! assert (a, [0.31; 0.60], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
951 %! assert (b, [0.86; 0.72], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
952 %! assert (c, [0.94; 0.87], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
953
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
954 %!test
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
955 %! str = "0.31, 0.86, 0.94\n 0.60, 0.72, 0.87";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
956 %! fmt = "%f %f %f";
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
957 %! args = {"delimiter", ",", "endofline", "\n", "whitespace", " "};
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
958 %! [a, b, c] = strread (str, fmt, args {:});
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
959 %! assert (a, [0.31; 0.60], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
960 %! assert (b, [0.86; 0.72], 0.01)
153581342e47 Always separate numeric fields by whitespace too; gracefully catch too wide literals & fixed width format conversion specifiers
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 13715
diff changeset
961 %! assert (c, [0.94; 0.87], 0.01)
14363
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14335
diff changeset
962
14497
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
963 %!test
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
964 %! [a, b] = strread (["Empty 1" char(10)], "Empty%s %f");
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
965 %! assert (a{1}, '1');
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
966 %! assert (b, NaN);
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
967
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
968 %!test
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
969 %! [a, b] = strread (["Empty" char(10)], "Empty%f %f");
14800
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
970 %! assert (a, NaN);
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
971 %! assert (b, NaN);
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
972
a922f768ee09 textscan, strread: improved ML compatibility (bug 36398)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14799
diff changeset
973 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
974 %! ## Bug #35999
14497
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
975 %! [a, b, c] = strread ("", "%f");
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
976 %! assert (isempty (a));
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
977 %! assert (isempty (b));
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
978 %! assert (isempty (c));
9fc75cdf61ab strread.m: Trap empty string input (bug #35999)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14366
diff changeset
979
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
980 %!test
17336
b81b9d079515 Use '##' for comments which stand alone on a line.
Rik <rik@octave.org>
parents: 17281
diff changeset
981 %! ## bug #37023
15263
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
982 %! [a, b] = strread (" 1. 1 \n 2 3 \n", "%f %f", "endofline", "\n");
2136343014d5 bug #37023 (wrong reading of lines starting and/or ending with whitespace)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14868
diff changeset
983 %! assert (a, [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
984 %! assert (b, [1; 3], 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
985
16306
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16094
diff changeset
986 %% Test for no output arg (interactive use)
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16094
diff changeset
987 %!test
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16094
diff changeset
988 %! assert (strread (",2,,4\n5,,7,", "", "delimiter", ","), [NaN; 2; NaN; 4; 5; NaN; 7]);
4a3b6a80db2e strread.m: fix division by zero when called with no output args; test added
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16094
diff changeset
989
18893
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
990 %% Test #1 bug #42609
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
991 %!test
18894
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
992 %! [a, b, c] = strread ("1 2 3\n4 5 6\n7 8 9\n", "%f %f %f\n");
18893
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
993 %! assert (a, [1; 4; 7]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
994 %! assert (b, [2; 5; 8]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
995 %! assert (c, [3; 6; 9]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
996
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
997 %% Test #2 bug #42609
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
998 %!test
18894
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
999 %! [a, b, c] = strread ("1 2\n3\n4 5\n6\n7 8\n9\n", "%f %f\n%f");
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1000 %! assert (a, [1;4;7]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1001 %! assert (b, [2; 5; 8]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1002 %! assert (c, [3; 6; 9]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1003
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1004 %% Test #3 bug #42609
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1005 %!test
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1006 %! [a, b, c] = strread ("1 2 3\n4 5 6\n7 8 9\n", '%f %f %f\n');
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1007 %! assert (a, [1; 4; 7]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1008 %! assert (b, [2; 5; 8]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1009 %! assert (c, [3; 6; 9]);
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1010
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1011 %% Test #3 bug #42609
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1012 %!test
c32f378e08f3 * strread.m: Process string escapes on single quoted format (bug #42609)
John W. Eaton <jwe@octave.org>
parents: 18893
diff changeset
1013 %! [a, b, c] = strread ("1 2\n3\n4 5\n6\n7 8\n9\n", '%f %f\n%f');
18893
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
1014 %! assert (a, [1;4;7]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
1015 %! assert (b, [2; 5; 8]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
1016 %! assert (c, [3; 6; 9]);
35838f49e2f6 strread.m: drop valid delimiters from format specifier list (bug #42609)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 17744
diff changeset
1017
14802
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
1018 %% Unsupported format specifiers
d5aee269b770 strread.m: catch unsupported ML format specifiers (bug #36464)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14800
diff changeset
1019 %!test
14835
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1020 %!error <format specifiers are not supported> strread ("a", "%c")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1021 %!error <format specifiers are not supported> strread ("a", "%*c %d")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1022 %!error <format specifiers are not supported> strread ("a", "%q")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1023 %!error <format specifiers are not supported> strread ("a", "%*q %d")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1024 %!error <format specifiers are not supported> strread ("a", "%[a]")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1025 %!error <format specifiers are not supported> strread ("a", "%*[a] %d")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1026 %!error <format specifiers are not supported> strread ("a", "%[^a]")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1027 %!error <format specifiers are not supported> strread ("a", "%*[^a] %d")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1028 %!error <format specifiers are not supported> strread ("a", "%d8")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1029 %!error <format specifiers are not supported> strread ("a", "%*d8 %s")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1030 %!error <format specifiers are not supported> strread ("a", "%f64")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1031 %!error <format specifiers are not supported> strread ("a", "%*f64 %s")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1032 %!error <format specifiers are not supported> strread ("a", "%u32")
821708f96efd strread.m: more robust word parsing and style improvements
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 14802
diff changeset
1033 %!error <format specifiers are not supported> strread ("a", "%*u32 %d")
16571
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
1034
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
1035 %% Illegal format specifiers
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
1036 %!test
4d8462fe15b9 strread.m: catch unknown format specifiers (bug #38834)
Philip Nienhuis <prnienhuis@users.sf.net>
parents: 16412
diff changeset
1037 %!error <unknown format specifier> strread ("1.0", "%z")
17338
1c89599167a6 maint: End m-files with 1 blank line.
Rik <rik@octave.org>
parents: 17336
diff changeset
1038