1######################################################################## 2## 3## Copyright (C) 2008-2021 The Octave Project Developers 4## 5## See the file COPYRIGHT.md in the top-level directory of this 6## distribution or <https://octave.org/copyright/>. 7## 8## This file is part of Octave. 9## 10## Octave is free software: you can redistribute it and/or modify it 11## under the terms of the GNU General Public License as published by 12## the Free Software Foundation, either version 3 of the License, or 13## (at your option) any later version. 14## 15## Octave is distributed in the hope that it will be useful, but 16## WITHOUT ANY WARRANTY; without even the implied warranty of 17## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18## GNU General Public License for more details. 19## 20## You should have received a copy of the GNU General Public License 21## along with Octave; see the file COPYING. If not, see 22## <https://www.gnu.org/licenses/>. 23## 24######################################################################## 25 26## -*- texinfo -*- 27## @deftypefn {} {} isstrprop (@var{str}, @var{prop}) 28## Test character string properties. 29## 30## For example: 31## 32## @example 33## @group 34## isstrprop ("abc123", "alpha") 35## @result{} [1, 1, 1, 0, 0, 0] 36## @end group 37## @end example 38## 39## If @var{str} is a cell array, @code{isstrpop} is applied recursively to 40## each element of the cell array. 41## 42## Numeric arrays are converted to character strings. 43## 44## The second argument @var{prop} must be one of 45## 46## @table @asis 47## @item @qcode{"alpha"} 48## True for characters that are alphabetic (letters). 49## 50## @item @nospell{@qcode{"alnum"}} 51## @itemx @nospell{@qcode{"alphanum"}} 52## True for characters that are alphabetic or digits. 53## 54## @item @qcode{"lower"} 55## True for lowercase letters. 56## 57## @item @qcode{"upper"} 58## True for uppercase letters. 59## 60## @item @qcode{"digit"} 61## True for decimal digits (0-9). 62## 63## @item @nospell{@qcode{"xdigit"}} 64## True for hexadecimal digits (@nospell{a-fA-F0-9}). 65## 66## @item @qcode{"space"} 67## @itemx @nospell{@qcode{"wspace"}} 68## True for whitespace characters (space, formfeed, newline, carriage return, 69## tab, vertical tab). 70## 71## @item @nospell{@qcode{"punct"}} 72## True for punctuation characters (printing characters except space or 73## letter or digit). 74## 75## @item @nospell{@qcode{"cntrl"}} 76## True for control characters. 77## 78## @item @qcode{"graph"} 79## @itemx @qcode{"graphic"} 80## True for printing characters except space. 81## 82## @item @qcode{"print"} 83## True for printing characters including space. 84## 85## @item @qcode{"ascii"} 86## True for characters that are in the range of ASCII encoding. 87## 88## @end table 89## 90## @seealso{isalpha, isalnum, islower, isupper, isdigit, isxdigit, 91## isspace, ispunct, iscntrl, isgraph, isprint, isascii} 92## @end deftypefn 93 94function retval = isstrprop (str, prop) 95 96 if (nargin != 2) 97 print_usage (); 98 endif 99 100 switch (prop) 101 case "alpha" 102 retval = isalpha (str); 103 case {"alnum", "alphanum"} 104 retval = isalnum (str); 105 case "ascii" 106 retval = isascii (str); 107 case "cntrl" 108 retval = iscntrl (str); 109 case "digit" 110 retval = isdigit (str); 111 case {"graph", "graphic"} 112 retval = isgraph (str); 113 case "lower" 114 retval = islower (str); 115 case "print" 116 retval = isprint (str); 117 case "punct" 118 retval = ispunct (str); 119 case {"space", "wspace"} 120 retval = isspace (str); 121 case "upper" 122 retval = isupper (str); 123 case "xdigit" 124 retval = isxdigit (str); 125 otherwise 126 error ("isstrprop: invalid string property"); 127 endswitch 128 129endfunction 130 131 132%!assert (isstrprop ("abc123", "alpha"), logical ([1, 1, 1, 0, 0, 0])) 133%!assert (isstrprop ("abc123", "digit"), logical ([0, 0, 0, 1, 1, 1])) 134%!assert (isstrprop ("Hello World", "wspace"), isspace ("Hello World")) 135%!assert (isstrprop ("Hello World", "graphic"), isgraph ("Hello World")) 136%!assert (isstrprop (char ("AbC", "123"), "upper"), logical ([1 0 1; 0 0 0])) 137%!assert (isstrprop ({"AbC", "123"}, "lower"), {logical([0 1 0]), logical([0 0 0])}) 138 139## Test input validation 140%!error isstrprop () 141%!error isstrprop ("abc123") 142%!error isstrprop ("abc123", "alpha", "alpha") 143%!error <invalid string property> isstrprop ("abc123", "foo") 144