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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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define READLINE_LIBRARY
#if defined (HAVE_STDLIB_H)
# include <stdlib.h>
#else
# include "ansi_stdlib.h"
#endif /* HAVE_STDLIB_H */
#include "rlconf.h"
#include "keymaps.h"
#include "emacs_keymap.c"
#if defined (VI_MODE)
#include "vi_keymap.c"
#endif
extern int rl_do_lowercase_version ();
extern int rl_rubout (), rl_insert ();
#if defined (STATIC_MALLOC)
static char *xmalloc (), *xrealloc ();
#else
extern char *xmalloc (), *xrealloc ();
#endif /* STATIC_MALLOC */
/* **************************************************************** */
/* */
/* 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 < 126; i++)
newmap[i].function = rl_insert;
newmap[TAB].function = rl_insert;
newmap[RUBOUT].function = rl_rubout;
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;
}
}
}
#if defined (STATIC_MALLOC)
/* **************************************************************** */
/* */
/* xmalloc and xrealloc () */
/* */
/* **************************************************************** */
static void memory_error_and_abort ();
static char *
xmalloc (bytes)
int bytes;
{
char *temp = (char *)malloc (bytes);
if (!temp)
memory_error_and_abort ();
return (temp);
}
static char *
xrealloc (pointer, bytes)
char *pointer;
int bytes;
{
char *temp;
if (!pointer)
temp = (char *)malloc (bytes);
else
temp = (char *)realloc (pointer, bytes);
if (!temp)
memory_error_and_abort ();
return (temp);
}
static void
memory_error_and_abort ()
{
fprintf (stderr, "readline: Out of virtual memory!\n");
abort ();
}
#endif /* STATIC_MALLOC */
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