annotate scripts/strings/isstrprop.m @ 19731:4197fc428c7d

maint: Update copyright notices for 2015.
author John W. Eaton <jwe@octave.org>
date Wed, 11 Feb 2015 14:19:08 -0500
parents d63878346099
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1 ## Copyright (C) 2008-2015 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} isstrprop (@var{str}, @var{prop})
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21 ## Test character string properties. For example:
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22 ##
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23 ## @example
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24 ## @group
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25 ## isstrprop ("abc123", "alpha")
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26 ## @result{} [1, 1, 1, 0, 0, 0]
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27 ## @end group
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28 ## @end example
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29 ##
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30 ## If @var{str} is a cell array, @code{isstrpop} is applied recursively
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31 ## to each element of the cell array.
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32 ##
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33 ## Numeric arrays are converted to character strings.
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34 ##
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35 ## The second argument @var{prop} must be one of
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36 ##
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37 ## @table @asis
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38 ## @item @qcode{"alpha"}
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39 ## True for characters that are alphabetic (letters).
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40 ##
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41 ## @item @qcode{"alnum"}
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42 ## @itemx @qcode{"alphanum"}
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43 ## True for characters that are alphabetic or digits.
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44 ##
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45 ## @item @qcode{"lower"}
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46 ## True for lowercase letters.
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47 ##
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48 ## @item @qcode{"upper"}
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49 ## True for uppercase letters.
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50 ##
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51 ## @item @qcode{"digit"}
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52 ## True for decimal digits (0-9).
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53 ##
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54 ## @item @qcode{"xdigit"}
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55 ## True for hexadecimal digits (@nospell{a-fA-F0-9}).
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56 ##
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57 ## @item @qcode{"space"}
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58 ## @itemx @qcode{"wspace"}
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59 ## True for whitespace characters (space, formfeed, newline, carriage
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60 ## return, tab, vertical tab).
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61 ##
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62 ## @item @qcode{"punct"}
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63 ## True for punctuation characters (printing characters except space
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64 ## or letter or digit).
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65 ##
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66 ## @item @qcode{"cntrl"}
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67 ## True for control characters.
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68 ##
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69 ## @item @qcode{"graph"}
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70 ## @itemx @qcode{"graphic"}
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71 ## True for printing characters except space.
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72 ##
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73 ## @item @qcode{"print"}
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74 ## True for printing characters including space.
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75 ##
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76 ## @item @qcode{"ascii"}
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77 ## True for characters that are in the range of ASCII encoding.
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78 ##
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79 ## @end table
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80 ##
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81 ## @seealso{isalpha, isalnum, islower, isupper, isdigit, isxdigit,
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82 ## isspace, ispunct, iscntrl, isgraph, isprint, isascii}
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83 ## @end deftypefn
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84
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85 function retval = isstrprop (str, prop)
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86
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87 if (nargin != 2)
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88 print_usage ();
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89 endif
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90
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91 switch (prop)
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92 case "alpha"
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93 retval = isalpha (str);
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94 case {"alnum", "alphanum"}
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95 retval = isalnum (str);
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96 case "ascii"
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97 retval = isascii (str);
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98 case "cntrl"
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99 retval = iscntrl (str);
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100 case "digit"
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101 retval = isdigit (str);
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102 case {"graph", "graphic"}
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103 retval = isgraph (str);
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104 case "lower"
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105 retval = islower (str);
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106 case "print"
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107 retval = isprint (str);
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108 case "punct"
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109 retval = ispunct (str);
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110 case {"space", "wspace"}
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111 retval = isspace (str);
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112 case "upper"
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113 retval = isupper (str);
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114 case "xdigit"
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115 retval = isxdigit (str);
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116 otherwise
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117 error ("isstrprop: invalid string property");
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118 endswitch
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119
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120 endfunction
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121
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122
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123 %!assert (isstrprop ("abc123", "alpha"), logical ([1, 1, 1, 0, 0, 0]))
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124 %!assert (isstrprop ("abc123", "digit"), logical ([0, 0, 0, 1, 1, 1]))
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125 %!assert (isstrprop ("Hello World", "wspace"), isspace ("Hello World"))
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126 %!assert (isstrprop ("Hello World", "graphic"), isgraph ("Hello World"))
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127 %!assert (isstrprop (char ("AbC", "123"), "upper"), logical ([1 0 1; 0 0 0]))
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128 %!assert (isstrprop ({"AbC", "123"}, "lower"), {logical([0 1 0]), logical([0 0 0])})
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129
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130 %%Input Validation
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131 %!error isstrprop ()
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132 %!error isstrprop ("abc123")
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133 %!error isstrprop ("abc123", "alpha", "alpha")
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e84d512b2438 isstrprop.m: Put input validation first and add a few more tests.
Rik <octave@nomad.inbox5.com>
parents: 12642
diff changeset
134 %!error <invalid string property> isstrprop ("abc123", "foo")
e84d512b2438 isstrprop.m: Put input validation first and add a few more tests.
Rik <octave@nomad.inbox5.com>
parents: 12642
diff changeset
135