gh-160141: Curses core fixes

Doc/library/curses.rst

@@ -1040,6 +1040,26 @@ Terminfo database
 
    :func:`setupterm` (or :func:`initscr`) must be called first.
 
+.. function:: tgetent(term)
+.. function:: tgetflag(id)
+.. function:: tgetnum(id)
+.. function:: tgetstr(id)
+.. function:: tgoto(capability, col, row)
+
+   Access the terminal's legacy termcap entries.  Call :func:`setupterm` first.
+   ``tgetent`` returns ``0`` or ``1``; the other lookup functions return their
+   termcap value, or ``None`` when no value is available.  *capability* must be
+   a bytes object returned by :func:`tgetstr`.
+
+.. function:: mcprint(string, count)
+
+   Send *count* copies of *string* to the terminal printer.
+
+.. function:: vidattr(attrs)
+.. function:: vidputs(attrs)
+
+   Set the terminal video attributes represented by *attrs*.
+
 
 Utilities
 ~~~~~~~~~

Lib/test/test_curses.py

@@ -1886,6 +1886,35 @@ def test_misc_module_funcs(self):
 
         curses.newpad(50, 50)
 
+    @requires_curses_func('mcprint')
+    def test_mcprint(self):
+        try:
+            result = curses.mcprint('x', 1)
+        except curses.error:
+            pass
+        else:
+            self.assertIsNone(result)
+
+    @requires_curses_func('tgetent')
+    def test_termcap_functions(self):
+        self.assertIn(curses.tgetent(os.environ.get('TERM', 'unknown')), (0, 1))
+        self.assertIsInstance(curses.tgetflag('am'), int)
+        self.assertIsInstance(curses.tgetnum('co'), int)
+        value = curses.tgetstr('cl')
+        if value is None:
+            self.assertIsNone(value)
+        else:
+            self.assertIsInstance(value, bytes)
+            self.assertIsInstance(curses.tgoto(value, 0, 0), bytes)
+
+    @requires_curses_func('vidattr')
+    def test_video_attributes(self):
+        for function in curses.vidattr, curses.vidputs:
+            try:
+                self.assertIsNone(function(curses.A_NORMAL))
+            except curses.error:
+                pass
+
     def test_env_queries(self):
         self.assertIsInstance(curses.termname(), bytes)
         self.assertIsInstance(curses.longname(), bytes)