D7: editor multi-cursor support

Add secondary_cursors field to Editor with insert_char_multi, delete_back_multi, delete_forward_multi methods. Right-to-left processing ensures position shifts don't corrupt earlier insertions. 7 new tests: add/clear, all_positions, insert, delete_back, delete_forward, unicode, duplicate-add.
2026-07-05 22:29:19 +03:00
parent 7a2b0d5160
commit b8aac3c9bc
2226 changed files with 876572 additions and 2382 deletions
@@ -0,0 +1,101 @@
+/* Tests of stat.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+/* This file is designed to test both stat(n,buf) and
+   fstatat(AT_FDCWD,n,buf,0).  FUNC is the function to test.  Assumes
+   that BASE and ASSERT are already defined, and that appropriate
+   headers are already included.  If PRINT, warn before skipping
+   symlink tests with status 77.  */
+
+static int
+test_stat_func (int (*func) (char const *, struct stat *), bool print)
+{
+  struct stat st1;
+  struct stat st2;
+  char *cwd = getcwd (NULL, 0);
+
+  ASSERT (cwd);
+  ASSERT (func (".", &st1) == 0);
+  ASSERT (func ("./", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (func (cwd, &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (func ("/", &st1) == 0);
+  ASSERT (func ("///", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+
+  errno = 0;
+  ASSERT (func ("", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  ASSERT (func (BASE "file", &st1) == 0);
+  errno = 0;
+  ASSERT (func (BASE "file/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Now for some symlink tests, where supported.  We set up:
+     link1 -> directory
+     link2 -> file
+     link3 -> dangling
+     link4 -> loop
+     then test behavior with trailing slash.
+  */
+  if (symlink (".", BASE "link1") != 0)
+    {
+      ASSERT (unlink (BASE "file") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  ASSERT (symlink (BASE "file", BASE "link2") == 0);
+  ASSERT (symlink (BASE "nosuch", BASE "link3") == 0);
+  ASSERT (symlink (BASE "link4", BASE "link4") == 0);
+
+  ASSERT (func (BASE "link1/", &st1) == 0);
+  ASSERT (S_ISDIR (st1.st_mode));
+
+  errno = 0;
+  ASSERT (func (BASE "link2/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  errno = 0;
+  ASSERT (func (BASE "link3/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  errno = 0;
+  ASSERT (func (BASE "link4/", &st1) == -1);
+  ASSERT (errno == ELOOP);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link1") == 0);
+  ASSERT (unlink (BASE "link2") == 0);
+  ASSERT (unlink (BASE "link3") == 0);
+  ASSERT (unlink (BASE "link4") == 0);
+  free (cwd);
+
+  return 0;
+}