Codespell: trying to get CI running

.codespell-ignorelines

@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: FSFAP
+# Copyright (C) 2024 Colin B. Macdonald
+#
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+# lines that codespell should ignore: whitespace matters!
+
+%!error <ndefined>

.codespell-ignorewords

@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: FSFAP
+# Copyright (C) 2024 Colin B. Macdonald
+#
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+# words that codespell should not complain about
+ans
+nin
+te
+unequalities
+unequality

.github/workflows/main.yml

@@ -70,6 +70,18 @@ jobs:
           flatpak run org.freedesktop.appstream.cli validate --strict --pedantic --explain io.github.gnu_octave.symbolic.metainfo.xml
 
 
+  codespell:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: codespell-project/actions-codespell@v2
+        with:
+          ignore_words_file: .codespell-ignorewords
+          exclude_file: .codespell-ignorelines
+          check_filenames: true
+          check_hidden: true
+
+
   # Built-in Self Tests and Doctests for various supported Octave and SymPy
   # Test newest Octave and all supported SymPy
   # Test other supported Octave releases with latest available SymPy

.gitignore

@@ -1,10 +1,19 @@
+# SPDX-License-Identifier: FSFAP
+# Copyright (C) 2024 Colin B. Macdonald
 #
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+#
+# Git ignore file for Octave's Symbolic package.
+
 *.so
 *~
 
 octave-workspace
 
-# temporary communcation files
+# temporary communication files
 temp_sym_python_cmd.py
 inlog.txt
 outlog.txt

NEWS

@@ -230,7 +230,7 @@ octsympy 2.6.0 (2017-07-27)
   * `sym` now accepts function handles such as anonymous functions as
     inputs.
 
-  * `subs` is not approriate for numerical evaluation; add an example in
+  * `subs` is not appropriate for numerical evaluation; add an example in
     `help subs` which shows how to do this with `function_handle`.
 
   * Calling `sym(cell)` now creates a sym array instead of a cell array.

TODO.md

@@ -1,4 +1,4 @@
-# TODO List, mostly historial now
+# TODO List, mostly historical now
 
 ## assumptions
 

inst/@sym/isAlways.m

@@ -1,4 +1,5 @@
-%% Copyright (C) 2014-2016, 2019, 2022 Colin B. Macdonald
+%% SPDX-License-Identifier: AGPL-3.0-or-later
+%% Copyright (C) 2014-2016, 2019, 2022, 2024 Colin B. Macdonald
 %%
 %% This file is part of OctSymPy.
 %%
@@ -78,49 +79,45 @@
 
   if (nargin == 3)
     assert(strcmpi(varargin{1}, 'unknown'))
-    cant = varargin{2};
-    if islogical(cant)
+    map_unknown_to = varargin{2};
+    if islogical(map_unknown_to)
       % SMT doesn't allow nonstring but it seems reasonable
-    elseif strcmpi(cant, 'true')
-      cant = true;
-    elseif strcmpi(cant, 'false')
-      cant = false;
-    elseif strcmpi(cant, 'error')
+    elseif strcmpi(map_unknown_to, 'true')
+      map_unknown_to = true;
+    elseif strcmpi(map_unknown_to, 'false')
+      map_unknown_to = false;
+    elseif strcmpi(map_unknown_to, 'error')
       % no-op
     else
       error('isAlways: invalid argument for "unknown" keyword')
     end
   else
-    cant = false;
+    map_unknown_to = false;
   end
 
   cmd = {
-    'def simplify_tfn(p):'
+    'def simplify_true_false_none(p):'
     '    if p in (S.true, S.false):'
     '        return bool(p)'
     '    r = simplify(p)'
     '    #FIXME; Boolean, simplify more than once?'
     '    if r in (S.true, S.false):'
     '        return bool(r)'
-    '    # FIXME: hopefully we get sympy patched for some of this'
-    '    #ver = sympy.__version__'
-    '    #if ver == "0.7.5" or ver.startswith("0.7.6") or ver.startswith("0.7.7"):'
-    '    if True:'
-    '        if isinstance(p, Equality):'
-    '            r = Eq(sp.simplify(p.lhs - p.rhs), 0)'
-    '            r = simplify(r)'
-    '            if r in (S.true, S.false):'
-    '                 return bool(r)'
-    '        if isinstance(p, Unequality):'
-    '            r = Eq(sp.simplify(p.lhs - p.rhs), 0)'
-    '            r = simplify(r)'
-    '            if r in (S.true, S.false):'
-    '                 return not bool(r)'
-    '        if isinstance(p, (Lt, Gt, Le, Ge)):'
-    '            r = p._eval_relation(sp.simplify(p.lhs - p.rhs), sp.S(0))'
-    '            r = simplify(r)'
-    '            if r in (S.true, S.false):'
-    '                 return bool(r)'
+    '    if isinstance(p, Equality):'
+    '        r = Eq(sp.simplify(p.lhs - p.rhs), 0)'
+    '        r = simplify(r)'
+    '        if r in (S.true, S.false):'
+    '             return bool(r)'
+    '    if isinstance(p, Unequality):'
+    '        r = Eq(sp.simplify(p.lhs - p.rhs), 0)'
+    '        r = simplify(r)'
+    '        if r in (S.true, S.false):'
+    '             return not bool(r)'
+    '    if isinstance(p, (Lt, Gt, Le, Ge)):'
+    '        r = p._eval_relation(sp.simplify(p.lhs - p.rhs), sp.S(0))'
+    '        r = simplify(r)'
+    '        if r in (S.true, S.false):'
+    '             return bool(r)'
     '    # for SMT compat'
     '    if p.is_number:'
     '        r = p.is_zero'  % FIXME: return bool(r)?
@@ -130,20 +127,20 @@
   % could distinguish b/w None and return a string for this last case
 
   cmd = vertcat(cmd, {
-    '(x, unknown) = _ins'
+    '(x, map_unknown_to) = _ins'
     'if x is not None and x.is_Matrix:'
     '    r = [a for a in x.T]' % note transpose
     'else:'
     '    r = [x,]'
-    'r = [simplify_tfn(a) for a in r]'
-    'r = [unknown if a is None else a for a in r]'
+    'r = [simplify_true_false_none(a) for a in r]'
+    'r = [map_unknown_to if a is None else a for a in r]'
     'flag = True'
     'if r.count("error") > 0:'
     '    flag = False'
     '    r = "cannot reliably convert sym to bool"'
     'return (flag, r)' });
 
-  [flag, r] = pycall_sympy__ (cmd, p, cant);
+  [flag, r] = pycall_sympy__ (cmd, p, map_unknown_to);
 
   if (~flag)
     assert (ischar (r), 'isAlways: programming error?')

inst/@sym/logical.m

@@ -1,4 +1,5 @@
-%% Copyright (C) 2014-2016, 2019 Colin B. Macdonald
+%% SPDX-License-Identifier: AGPL-3.0-or-later
+%% Copyright (C) 2014-2016, 2019, 2024 Colin B. Macdonald
 %%
 %% This file is part of OctSymPy.
 %%
@@ -76,6 +77,7 @@
 
   % do not simplify here
 
+  % convert a scalar expression to true/false/none
   cmd = {
     'def scalar2tfn(p):'
     '    if p in (S.true, S.false):'
@@ -116,7 +118,7 @@
 
   % FIXME: oo, zoo error too in SMT
   %        '    elif p is nan:'
-  %        '        raise TE   # FIXME: check SMT'
+  %        '        raise TypeError   # FIXME: check SMT'
 
 
   if (~flag)

inst/private/assert_pythonic_and_sympy.m

@@ -1,3 +1,4 @@
+%% SPDX-License-Identifier: AGPL-3.0-or-later
 %% Copyright (C) 2019, 2022, 2024 Colin B. Macdonald
 %% Copyright (C) 2022-2023 Alex Vong
 %%
@@ -27,6 +28,8 @@
 
 function assert_pythonic_and_sympy (verbose)
 
+  % Ubuntu 20.04: 1.5.1, EOL Apr 2025
+  % Ubuntu 22.04: 1.9, EOL Apr 2027
   minsympyver = '1.5.1';
 
   if (nargin < 1)

inst/private/python_copy_vars_to.m

@@ -1,4 +1,5 @@
-%% Copyright (C) 2014-2017, 2023 Colin B. Macdonald
+%% SPDX-License-Identifier: AGPL-3.0-or-later
+%% Copyright (C) 2014-2017, 2023-2024 Colin B. Macdonald
 %%
 %% This file is part of OctSymPy.
 %%
@@ -16,10 +17,10 @@
 %% License along with this software; see the file COPYING.
 %% If not, see <http://www.gnu.org/licenses/>.
 
-function L = python_copy_vars_to(in, te, varargin)
+function L = python_copy_vars_to(in, try_except, varargin)
 %private function
 
-  if (~te)
+  if (~try_except)
     %% no error checking
     L = do_list(0, in, varargin);
     L = { sprintf('%s = []', in) ...

util/convert_comments.m

@@ -1,4 +1,4 @@
-%% Copyright (C) 2014-2018, 2023 Colin B. Macdonald
+%% Copyright (C) 2014-2018, 2023-2024 Colin B. Macdonald
 %%
 %% This file is part of OctSymPy.
 %%
@@ -240,7 +240,7 @@ function convert_comments (basedir, subdir, dirout)
   fprintf(f, '%%   %s\n', copyright_summary);
 
   %fdisp(f, '%');
-  %fdisp(f, '%   [Genereated from a GNU Octave .m file, edit that instead.]');
+  %fdisp(f, '%   [Generated from a GNU Octave .m file, edit that instead.]');
 
   %fprintf(f,(s)