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freebsd/lib/libedit/term.h
Jilles Tjoelker b3c63ff614 libedit: Try to map <Delete> to ed-delete-next-char.
This adds a new "arrow" key "delete" corresponding to the kD termcap value.
It only works if that is a sequence such as "\033[3~"; if it is "\177", the
em-delete-prev-char or ed-delete-prev-char from the single-character
mappings remains. It turns out that most terminals (xterm and alikes,
syscons in xterm mode) produce "\033[3~" by default so <Delete> has the
expected effect.

This also means that things need to be considerably misconfigured for
<Backspace> to perform a <Delete> action.
2010-09-05 16:12:10 +00:00

127 lines
4.9 KiB
C

/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Christos Zoulas of Cornell University.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)term.h 8.1 (Berkeley) 6/4/93
* $NetBSD: term.h,v 1.18 2006/11/24 00:01:17 christos Exp $
* $FreeBSD$
*/
/*
* el.term.h: Termcap header
*/
#ifndef _h_el_term
#define _h_el_term
#include "histedit.h"
typedef struct { /* Symbolic function key bindings */
const char *name; /* name of the key */
int key; /* Index in termcap table */
key_value_t fun; /* Function bound to it */
int type; /* Type of function */
} fkey_t;
typedef struct {
const char *t_name; /* the terminal name */
coord_t t_size; /* # lines and cols */
int t_flags;
#define TERM_CAN_INSERT 0x001 /* Has insert cap */
#define TERM_CAN_DELETE 0x002 /* Has delete cap */
#define TERM_CAN_CEOL 0x004 /* Has CEOL cap */
#define TERM_CAN_TAB 0x008 /* Can use tabs */
#define TERM_CAN_ME 0x010 /* Can turn all attrs. */
#define TERM_CAN_UP 0x020 /* Can move up */
#define TERM_HAS_META 0x040 /* Has a meta key */
#define TERM_HAS_AUTO_MARGINS 0x080 /* Has auto margins */
#define TERM_HAS_MAGIC_MARGINS 0x100 /* Has magic margins */
char *t_buf; /* Termcap buffer */
int t_loc; /* location used */
char **t_str; /* termcap strings */
int *t_val; /* termcap values */
char *t_cap; /* Termcap buffer */
fkey_t *t_fkey; /* Array of keys */
} el_term_t;
/*
* fKey indexes
*/
#define A_K_DN 0
#define A_K_UP 1
#define A_K_LT 2
#define A_K_RT 3
#define A_K_HO 4
#define A_K_EN 5
#define A_K_DE 6
#define A_K_NKEYS 7
protected void term_move_to_line(EditLine *, int);
protected void term_move_to_char(EditLine *, int);
protected void term_clear_EOL(EditLine *, int);
protected void term_overwrite(EditLine *, const char *, int);
protected void term_insertwrite(EditLine *, char *, int);
protected void term_deletechars(EditLine *, int);
protected void term_clear_screen(EditLine *);
protected void term_beep(EditLine *);
protected int term_change_size(EditLine *, int, int);
protected int term_get_size(EditLine *, int *, int *);
protected int term_init(EditLine *);
protected void term_bind_arrow(EditLine *);
protected void term_print_arrow(EditLine *, const char *);
protected int term_clear_arrow(EditLine *, const char *);
protected int term_set_arrow(EditLine *, const char *, key_value_t *, int);
protected void term_end(EditLine *);
protected void term_get(EditLine *, const char **);
protected int term_set(EditLine *, const char *);
protected int term_settc(EditLine *, int, const char **);
protected int term_gettc(EditLine *, int, char **);
protected int term_telltc(EditLine *, int, const char **);
protected int term_echotc(EditLine *, int, const char **);
protected void term_writec(EditLine *, int);
protected int term__putc(int);
protected void term__flush(void);
/*
* Easy access macros
*/
#define EL_FLAGS (el)->el_term.t_flags
#define EL_CAN_INSERT (EL_FLAGS & TERM_CAN_INSERT)
#define EL_CAN_DELETE (EL_FLAGS & TERM_CAN_DELETE)
#define EL_CAN_CEOL (EL_FLAGS & TERM_CAN_CEOL)
#define EL_CAN_TAB (EL_FLAGS & TERM_CAN_TAB)
#define EL_CAN_ME (EL_FLAGS & TERM_CAN_ME)
#define EL_CAN_UP (EL_FLAGS & TERM_CAN_UP)
#define EL_HAS_META (EL_FLAGS & TERM_HAS_META)
#define EL_HAS_AUTO_MARGINS (EL_FLAGS & TERM_HAS_AUTO_MARGINS)
#define EL_HAS_MAGIC_MARGINS (EL_FLAGS & TERM_HAS_MAGIC_MARGINS)
#endif /* _h_el_term */