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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 = (Function *)NULL;

    }

  for (i = 'A'; i < ('Z' + 1); i++)

    {

      keymap[i].type = ISFUNC;

      keymap[i].function = rl_do_lowercase_version;

    }

  return (keymap);

}

/* Return a new keymap which is a copy of MAP. */

Keymap

rl_copy_keymap (map)

     Keymap map;

{

  register int i;

  Keymap 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 some 8-bit character sets. */

  for (i = 128; i < 160; i++)

    newmap[i].function = rl_insert;

  /* ISO Latin-1 printing characters should self-insert. */

  for (i = 160; 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;

        }

    }

}