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/* keymaps.c -- Functions and keymaps for the GNU Readline library. */
 
/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
 
   This file is part of GNU 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 2, 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; see the file COPYING.  If not, write to the Free
   Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#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 ()
{
  register int i;
  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);
}
 
/* Return a new keymap which is a copy of MAP. */
Keymap
rl_copy_keymap (map)
     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 ()
{
  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 (map)
     Keymap map;
{
  int i;
 
  if (!map)
    return;
 
  for (i = 0; i < KEYMAP_SIZE; i++)
    {
      switch (map[i].type)
	{
	case ISFUNC:
	  break;
 
	case ISKMAP:
	  rl_discard_keymap ((Keymap)map[i].function);
	  break;
 
	case ISMACR:
	  free ((char *)map[i].function);
	  break;
	}
    }
}