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+/* keymaps.c -- Functions and keymaps for the GNU Readline library. */
+
+/* Copyright (C) 1988,1989-2009,2017 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library
+ for reading lines of text with interactive input and history editing.
+
+ Readline 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.
+
+ Readline 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 Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h> /* for FILE * definition for readline.h */
+
+#include "readline.h"
+#include "rlconf.h"
+
+#include "emacs_keymap.c"
+
+#if defined (VI_MODE)
+#include "vi_keymap.c"
+#endif
+
+#include "xmalloc.h"
+
+/* **************************************************************** */
+/* */
+/* Functions for manipulating Keymaps. */
+/* */
+/* **************************************************************** */
+
+
+/* Return a new, empty keymap.
+ Free it with free() when you are done. */
+Keymap
+rl_make_bare_keymap (void)
+{
+ register int i;
+ Keymap keymap;
+
+ keymap = (Keymap)xmalloc (KEYMAP_SIZE * sizeof (KEYMAP_ENTRY));
+ for (i = 0; i < KEYMAP_SIZE; i++)
+ {
+ keymap[i].type = ISFUNC;
+ keymap[i].function = (rl_command_func_t *)NULL;
+ }
+
+#if 0
+ for (i = 'A'; i < ('Z' + 1); i++)
+ {
+ keymap[i].type = ISFUNC;
+ keymap[i].function = rl_do_lowercase_version;
+ }
+#endif
+
+ return (keymap);
+}
+
+/* A convenience function that returns 1 if there are no keys bound to
+ functions in KEYMAP */
+int
+rl_empty_keymap (Keymap keymap)
+{
+ int i;
+
+ for (i = 0; i < ANYOTHERKEY; i++)
+ {
+ if (keymap[i].type != ISFUNC || keymap[i].function)
+ return 0;
+ }
+ return 1;
+}
+
+/* Return a new keymap which is a copy of MAP. Just copies pointers, does
+ not copy text of macros or descend into child keymaps. */
+Keymap
+rl_copy_keymap (Keymap map)
+{
+ register int i;
+ Keymap temp;
+
+ temp = rl_make_bare_keymap ();
+ for (i = 0; i < KEYMAP_SIZE; i++)
+ {
+ temp[i].type = map[i].type;
+ temp[i].function = map[i].function;
+ }
+ return (temp);
+}
+
+/* Return a new keymap with the printing characters bound to rl_insert,
+ the uppercase Meta characters bound to run their lowercase equivalents,
+ and the Meta digits bound to produce numeric arguments. */
+Keymap
+rl_make_keymap (void)
+{
+ register int i;
+ Keymap newmap;
+
+ newmap = rl_make_bare_keymap ();
+
+ /* All ASCII printing characters are self-inserting. */
+ for (i = ' '; i < 127; i++)
+ newmap[i].function = rl_insert;
+
+ newmap[TAB].function = rl_insert;
+ newmap[RUBOUT].function = rl_rubout; /* RUBOUT == 127 */
+ newmap[CTRL('H')].function = rl_rubout;
+
+#if KEYMAP_SIZE > 128
+ /* Printing characters in ISO Latin-1 and some 8-bit character sets. */
+ for (i = 128; i < 256; i++)
+ newmap[i].function = rl_insert;
+#endif /* KEYMAP_SIZE > 128 */
+
+ return (newmap);
+}
+
+/* Free the storage associated with MAP. */
+void
+rl_discard_keymap (Keymap map)
+{
+ int i;
+
+ if (map == 0)
+ return;
+
+ for (i = 0; i < KEYMAP_SIZE; i++)
+ {
+ switch (map[i].type)
+ {
+ case ISFUNC:
+ break;
+
+ case ISKMAP:
+ rl_discard_keymap ((Keymap)map[i].function);
+ xfree ((char *)map[i].function);
+ break;
+
+ case ISMACR:
+ xfree ((char *)map[i].function);
+ break;
+ }
+ }
+}
+
+/* Convenience function that discards, then frees, MAP. */
+void
+rl_free_keymap (Keymap map)
+{
+ rl_discard_keymap (map);
+ xfree ((char *)map);
+}