196 lines
4.4 KiB
C
196 lines
4.4 KiB
C
/* keymaps.c -- Functions and keymaps for the GNU Readline library. */
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/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
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This file is part of GNU Readline, a library for reading lines
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of text with interactive input and history editing.
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Readline is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 1, or (at your option) any
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later version.
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Readline is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Readline; see the file COPYING. If not, write to the Free
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Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if defined (HAVE_STDLIB_H)
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# include <stdlib.h>
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#else
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# include "ansi_stdlib.h"
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#endif /* HAVE_STDLIB_H */
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#include "rlconf.h"
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#include "keymaps.h"
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#include "emacs_keymap.c"
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#ifdef VI_MODE
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#include "vi_keymap.c"
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#endif
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extern int rl_do_lowercase_version ();
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extern int rl_rubout (), rl_insert ();
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#if defined (STATIC_MALLOC)
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static char *xmalloc (), *xrealloc ();
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#else
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extern char *xmalloc (), *xrealloc ();
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#endif /* STATIC_MALLOC */
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/* **************************************************************** */
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/* */
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/* Functions for manipulating Keymaps. */
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/* */
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/* **************************************************************** */
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/* Return a new, empty keymap.
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Free it with free() when you are done. */
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Keymap
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rl_make_bare_keymap ()
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{
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register int i;
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Keymap keymap = (Keymap)xmalloc (KEYMAP_SIZE * sizeof (KEYMAP_ENTRY));
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for (i = 0; i < KEYMAP_SIZE; i++)
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{
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keymap[i].type = ISFUNC;
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keymap[i].function = (Function *)NULL;
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}
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for (i = 'A'; i < ('Z' + 1); i++)
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{
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keymap[i].type = ISFUNC;
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keymap[i].function = rl_do_lowercase_version;
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}
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return (keymap);
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}
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/* Return a new keymap which is a copy of MAP. */
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Keymap
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rl_copy_keymap (map)
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Keymap map;
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{
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register int i;
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Keymap temp = rl_make_bare_keymap ();
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for (i = 0; i < KEYMAP_SIZE; i++)
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{
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temp[i].type = map[i].type;
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temp[i].function = map[i].function;
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}
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return (temp);
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}
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/* Return a new keymap with the printing characters bound to rl_insert,
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the uppercase Meta characters bound to run their lowercase equivalents,
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and the Meta digits bound to produce numeric arguments. */
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Keymap
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rl_make_keymap ()
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{
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register int i;
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Keymap newmap;
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newmap = rl_make_bare_keymap ();
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/* All ASCII printing characters are self-inserting. */
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for (i = ' '; i < 126; i++)
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newmap[i].function = rl_insert;
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newmap[TAB].function = rl_insert;
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newmap[RUBOUT].function = rl_rubout;
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newmap[CTRL('H')].function = rl_rubout;
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#if KEYMAP_SIZE > 128
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/* Printing characters in some 8-bit character sets. */
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for (i = 128; i < 160; i++)
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newmap[i].function = rl_insert;
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/* ISO Latin-1 printing characters should self-insert. */
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for (i = 160; i < 256; i++)
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newmap[i].function = rl_insert;
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#endif /* KEYMAP_SIZE > 128 */
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return (newmap);
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}
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/* Free the storage associated with MAP. */
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void
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rl_discard_keymap (map)
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Keymap (map);
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{
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int i;
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if (!map)
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return;
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for (i = 0; i < KEYMAP_SIZE; i++)
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{
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switch (map[i].type)
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{
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case ISFUNC:
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break;
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case ISKMAP:
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rl_discard_keymap ((Keymap)map[i].function);
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break;
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case ISMACR:
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free ((char *)map[i].function);
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break;
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}
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}
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}
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#if defined (STATIC_MALLOC)
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/* **************************************************************** */
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/* */
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/* xmalloc and xrealloc () */
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/* */
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/* **************************************************************** */
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static void memory_error_and_abort ();
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static char *
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xmalloc (bytes)
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int bytes;
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{
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char *temp = (char *)malloc (bytes);
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if (!temp)
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memory_error_and_abort ();
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return (temp);
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}
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static char *
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xrealloc (pointer, bytes)
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char *pointer;
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int bytes;
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{
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char *temp;
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if (!pointer)
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temp = (char *)malloc (bytes);
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else
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temp = (char *)realloc (pointer, bytes);
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if (!temp)
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memory_error_and_abort ();
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return (temp);
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}
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static void
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memory_error_and_abort ()
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{
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fprintf (stderr, "readline: Out of virtual memory!\n");
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abort ();
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}
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#endif /* STATIC_MALLOC */
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