b3c63ff614
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.
127 lines
4.9 KiB
C
127 lines
4.9 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Christos Zoulas of Cornell University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)term.h 8.1 (Berkeley) 6/4/93
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* $NetBSD: term.h,v 1.18 2006/11/24 00:01:17 christos Exp $
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* $FreeBSD$
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*/
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/*
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* el.term.h: Termcap header
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*/
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#ifndef _h_el_term
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#define _h_el_term
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#include "histedit.h"
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typedef struct { /* Symbolic function key bindings */
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const char *name; /* name of the key */
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int key; /* Index in termcap table */
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key_value_t fun; /* Function bound to it */
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int type; /* Type of function */
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} fkey_t;
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typedef struct {
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const char *t_name; /* the terminal name */
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coord_t t_size; /* # lines and cols */
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int t_flags;
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#define TERM_CAN_INSERT 0x001 /* Has insert cap */
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#define TERM_CAN_DELETE 0x002 /* Has delete cap */
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#define TERM_CAN_CEOL 0x004 /* Has CEOL cap */
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#define TERM_CAN_TAB 0x008 /* Can use tabs */
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#define TERM_CAN_ME 0x010 /* Can turn all attrs. */
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#define TERM_CAN_UP 0x020 /* Can move up */
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#define TERM_HAS_META 0x040 /* Has a meta key */
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#define TERM_HAS_AUTO_MARGINS 0x080 /* Has auto margins */
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#define TERM_HAS_MAGIC_MARGINS 0x100 /* Has magic margins */
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char *t_buf; /* Termcap buffer */
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int t_loc; /* location used */
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char **t_str; /* termcap strings */
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int *t_val; /* termcap values */
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char *t_cap; /* Termcap buffer */
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fkey_t *t_fkey; /* Array of keys */
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} el_term_t;
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/*
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* fKey indexes
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*/
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#define A_K_DN 0
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#define A_K_UP 1
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#define A_K_LT 2
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#define A_K_RT 3
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#define A_K_HO 4
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#define A_K_EN 5
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#define A_K_DE 6
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#define A_K_NKEYS 7
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protected void term_move_to_line(EditLine *, int);
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protected void term_move_to_char(EditLine *, int);
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protected void term_clear_EOL(EditLine *, int);
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protected void term_overwrite(EditLine *, const char *, int);
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protected void term_insertwrite(EditLine *, char *, int);
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protected void term_deletechars(EditLine *, int);
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protected void term_clear_screen(EditLine *);
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protected void term_beep(EditLine *);
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protected int term_change_size(EditLine *, int, int);
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protected int term_get_size(EditLine *, int *, int *);
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protected int term_init(EditLine *);
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protected void term_bind_arrow(EditLine *);
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protected void term_print_arrow(EditLine *, const char *);
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protected int term_clear_arrow(EditLine *, const char *);
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protected int term_set_arrow(EditLine *, const char *, key_value_t *, int);
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protected void term_end(EditLine *);
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protected void term_get(EditLine *, const char **);
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protected int term_set(EditLine *, const char *);
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protected int term_settc(EditLine *, int, const char **);
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protected int term_gettc(EditLine *, int, char **);
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protected int term_telltc(EditLine *, int, const char **);
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protected int term_echotc(EditLine *, int, const char **);
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protected void term_writec(EditLine *, int);
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protected int term__putc(int);
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protected void term__flush(void);
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/*
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* Easy access macros
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*/
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#define EL_FLAGS (el)->el_term.t_flags
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#define EL_CAN_INSERT (EL_FLAGS & TERM_CAN_INSERT)
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#define EL_CAN_DELETE (EL_FLAGS & TERM_CAN_DELETE)
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#define EL_CAN_CEOL (EL_FLAGS & TERM_CAN_CEOL)
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#define EL_CAN_TAB (EL_FLAGS & TERM_CAN_TAB)
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#define EL_CAN_ME (EL_FLAGS & TERM_CAN_ME)
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#define EL_CAN_UP (EL_FLAGS & TERM_CAN_UP)
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#define EL_HAS_META (EL_FLAGS & TERM_HAS_META)
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#define EL_HAS_AUTO_MARGINS (EL_FLAGS & TERM_HAS_AUTO_MARGINS)
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#define EL_HAS_MAGIC_MARGINS (EL_FLAGS & TERM_HAS_MAGIC_MARGINS)
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#endif /* _h_el_term */
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