Mercurial > octave
annotate scripts/strings/mat2str.m @ 33624:e0c037a01fde default tip
redirect stdout and stderr into experimental terminal widget
* command-widget.cc (command_widget): open temp files for redirecting
stdout and stderr, setup a file system watcher for signals on changes
to these files;
(~command_widget): close and remove the temp. files;
(insert_interpreter_output): use the style as second argument
(print_stream): add new contents of temp. files for stdout and stderr
to the end of the terminal contents;
(notice_settings): set the terminal preferences to the new lexer of
the console;
(console): create and set new lexer;
(new_command_line): use prompt style for the prompt;
(execute_command): use second command line argument for the style;
(append_string): use style as second argument and style the added
text accordingly;
* command-widget.h (console) append_string with second argument for style,
(command_widget): now with destructor, new method print_stream,
insert_interpreter_output with second argument for style, new class
variables for temp. file descriptors and file system watcher
* console-lexer.cc/h: new lexer derived from QScintillas default lexer
for styling the terminal output, styles used so far: Default, Error,
and Prompt
* gui-preferences-cs.h: new constants for error and prompt colors
* libgui/src/module.mk: new files console_lexer.cc/h
* qt-interpreter-events.cc (display_exception): interpreter_output_signal
with second argument for the style, here Error style
* qt-interpreter-events.h: interpreter_output_signal with second
argument for the style
* terminal-dock-widget.h: interpreter_output_signal with second
argument for the style
author | Torsten Lilge <ttl-octave@mailbox.org> |
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date | Sat, 25 May 2024 14:36:01 +0200 |
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1 ######################################################################## |
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2 ## |
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3 ## Copyright (C) 2002-2024 The Octave Project Developers |
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4 ## |
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5 ## See the file COPYRIGHT.md in the top-level directory of this |
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6 ## distribution or <https://octave.org/copyright/>. |
5837 | 7 ## |
8 ## This file is part of Octave. | |
9 ## | |
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10 ## Octave is free software: you can redistribute it and/or modify it |
5837 | 11 ## under the terms of the GNU General Public License as published by |
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12 ## the Free Software Foundation, either version 3 of the License, or |
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13 ## (at your option) any later version. |
5837 | 14 ## |
15 ## Octave is distributed in the hope that it will be useful, but | |
16 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 ## GNU General Public License for more details. |
5837 | 19 ## |
20 ## You should have received a copy of the GNU General Public License | |
7016 | 21 ## along with Octave; see the file COPYING. If not, see |
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22 ## <https://www.gnu.org/licenses/>. |
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23 ## |
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24 ######################################################################## |
5837 | 25 |
26 ## -*- texinfo -*- | |
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27 ## @deftypefn {} {@var{s} =} mat2str (@var{x}, @var{n}) |
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28 ## @deftypefnx {} {@var{s} =} mat2str (@var{x}, @var{n}, "class") |
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29 ## Format real, complex, and logical matrices as strings. |
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30 ## |
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31 ## The returned string may be used to reconstruct the original matrix by using |
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32 ## the @code{eval} function. |
5837 | 33 ## |
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34 ## The precision of the values is given by @var{n}. If @var{n} is a scalar |
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35 ## then both real and imaginary parts of the matrix are printed to the same |
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36 ## precision. Otherwise @code{@var{n}(1)} defines the precision of the real |
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37 ## part and @code{@var{n}(2)} defines the precision of the imaginary part. |
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38 ## The default for @var{n} is 15. |
5837 | 39 ## |
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40 ## If the argument @qcode{"class"} is given then the class of @var{x} is |
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41 ## included in the string in such a way that @code{eval} will result in the |
5837 | 42 ## construction of a matrix of the same class. |
43 ## | |
44 ## @example | |
45 ## @group | |
8507 | 46 ## mat2str ([ -1/3 + i/7; 1/3 - i/7 ], [4 2]) |
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47 ## @result{} "[-0.3333+0.14i;0.3333-0.14i]" |
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48 ## |
8507 | 49 ## mat2str ([ -1/3 +i/7; 1/3 -i/7 ], [4 2]) |
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50 ## @result{} "[-0.3333+0i 0+0.14i;0.3333+0i -0-0.14i]" |
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51 ## |
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52 ## mat2str (int16 ([1 -1]), "class") |
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53 ## @result{} "int16([1 -1])" |
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54 ## |
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55 ## mat2str (logical (eye (2))) |
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56 ## @result{} "[true false;false true]" |
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57 ## |
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58 ## isequal (x, eval (mat2str (x))) |
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59 ## @result{} 1 |
5837 | 60 ## @end group |
61 ## @end example | |
62 ## | |
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63 ## @seealso{sprintf, num2str, int2str} |
5837 | 64 ## @end deftypefn |
65 | |
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66 function s = mat2str (x, n = 15, cls = "") |
5837 | 67 |
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68 if (nargin < 1 || ! (isnumeric (x) || islogical (x))) |
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69 print_usage (); |
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70 elseif (ndims (x) > 2) |
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71 error ("mat2str: X must be two dimensional"); |
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72 endif |
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73 |
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74 if (nargin == 2 && ischar (n)) |
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75 cls = n; |
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76 n = 15; |
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77 elseif (isempty (n)) |
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78 n = 15; # Default precision |
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79 elseif (numel (n) > 2) |
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80 error ("mat2str: N must have only 1 or 2 elements"); |
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81 else |
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82 n = fix (n); |
5837 | 83 endif |
84 | |
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85 x_islogical = islogical (x); |
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86 x_iscomplex = iscomplex (x); |
5838 | 87 |
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88 if (x_iscomplex) |
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89 if (isscalar (n)) |
5837 | 90 n = [n, n]; |
91 endif | |
5838 | 92 fmt = sprintf ("%%.%dg%%+.%dgi", n(1), n(2)); |
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93 elseif (x_islogical) |
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94 v = {"false", "true"}; |
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95 fmt = "%s"; |
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96 else |
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97 fmt = sprintf ("%%.%dg", n(1)); |
5837 | 98 endif |
99 | |
5838 | 100 nel = numel (x); |
5837 | 101 |
5838 | 102 if (nel == 0) |
103 ## Empty, only print brackets | |
5837 | 104 s = "[]"; |
5838 | 105 elseif (nel == 1) |
106 ## Scalar X, don't print brackets | |
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107 if (x_iscomplex) |
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108 s = sprintf (fmt, real (x), imag (x)); |
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109 elseif (x_islogical) |
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110 s = v{x+1}; |
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111 else |
5838 | 112 s = sprintf (fmt, x); |
5837 | 113 endif |
5838 | 114 else |
115 ## Non-scalar X, print brackets | |
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116 fmt = [fmt " "]; |
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117 if (x_iscomplex) |
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118 t = x.'; |
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119 s = sprintf (fmt, [real(t(:))'; imag(t(:))']); |
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120 elseif (x_islogical) |
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121 t = v(x.'+1); |
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122 s = cstrcat (sprintf (fmt, t{:})); |
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123 else |
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124 s = sprintf (fmt, x.'); |
5837 | 125 endif |
126 | |
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127 s = ["[" s]; |
5838 | 128 s(end) = "]"; |
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129 idx = strfind (s, " "); |
5946 | 130 nc = columns (x); |
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131 s(idx(nc:nc:end)) = ";"; |
5837 | 132 endif |
133 | |
134 if (strcmp ("class", cls)) | |
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135 s = [class(x) "(" s ")"]; |
5837 | 136 endif |
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137 |
5837 | 138 endfunction |
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139 |
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140 |
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141 %!assert (mat2str (0.7), "0.7") |
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142 %!assert (mat2str (pi), "3.14159265358979") |
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143 %!assert (mat2str (pi, 5), "3.1416") |
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144 %!assert (mat2str (single (pi), 5, "class"), "single(3.1416)") |
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145 %!assert (mat2str ([-1/3 + i/7; 1/3 - i/7], [4 2]), |
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146 %! "[-0.3333+0.14i;0.3333-0.14i]") |
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147 %!assert (mat2str ([-1/3 +i/7; 1/3 -i/7], [4 2]), |
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148 %! "[-0.3333+0i 0+0.14i;0.3333+0i -0-0.14i]") |
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149 %!assert (mat2str (int16 ([1 -1]), "class"), "int16([1 -1])") |
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150 %!assert (mat2str (true), "true") |
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151 %!assert (mat2str (false), "false") |
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152 %!assert (mat2str (logical (eye (2))), "[true false;false true]") |
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153 %!assert (mat2str (logical ([0 1; 0 0])), "[false true;false false]") |
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154 |
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155 ## Test input validation |
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156 %!error <Invalid call> mat2str () |
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157 %!error mat2str (["Hello"]) |
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158 %!error <X must be two dimensional> mat2str (ones (3,3,2)) |
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159 %!error <N must have only 1 or 2 elements> mat2str (ones (3,3), [1 2 3]) |