Import libedit 2019-09-10

Compared to current version in base:
- great improvements on the Unicode support
- full support for filename completion including quoting
  which means we do not need anymore our custom addition)
- Improved readline compatiblity

Upgrading libedit has been a pain in the past, because somehow we never
managed to properly cleanup the tree in lib/libedit and each merge has always
been very painful. After years of fighting give up and refresh a merge from
scrarch properly in contrib.

Note that the switch to this version will be done in another commit.

1 files changed, 125 insertions, 0 deletions

diff --git a/contrib/libedit/terminal.h b/contrib/libedit/terminal.h
new file mode 100644
index 000000000000..ae61beb1ecfc
--- /dev/null
+++ b/contrib/libedit/terminal.h
@@ -0,0 +1,125 @@
+/*	$NetBSD: terminal.h,v 1.9 2016/05/09 21:46:56 christos Exp $	*/
+
+/*-
+ * 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
+ */
+
+/*
+ * el.term.h: Termcap header
+ */
+#ifndef _h_el_terminal
+#define	_h_el_terminal
+
+typedef struct {		/* Symbolic function key bindings	*/
+	const wchar_t	*name;	/* name of the key			*/
+	int		 key;	/* Index in termcap table		*/
+	keymacro_value_t	 fun;	/* Function bound to it			*/
+	int		 type;	/* Type of function			*/
+} funckey_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	*/
+	size_t	  t_loc;		/* location used	*/
+	char	**t_str;		/* termcap strings	*/
+	int	 *t_val;		/* termcap values	*/
+	char	 *t_cap;		/* Termcap buffer	*/
+	funckey_t	 *t_fkey;		/* Array of keys	*/
+} el_terminal_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
+
+libedit_private void	terminal_move_to_line(EditLine *, int);
+libedit_private void	terminal_move_to_char(EditLine *, int);
+libedit_private void	terminal_clear_EOL(EditLine *, int);
+libedit_private void	terminal_overwrite(EditLine *, const wchar_t *, size_t);
+libedit_private void	terminal_insertwrite(EditLine *, wchar_t *, int);
+libedit_private void	terminal_deletechars(EditLine *, int);
+libedit_private void	terminal_clear_screen(EditLine *);
+libedit_private void	terminal_beep(EditLine *);
+libedit_private int	terminal_change_size(EditLine *, int, int);
+libedit_private int	terminal_get_size(EditLine *, int *, int *);
+libedit_private int	terminal_init(EditLine *);
+libedit_private void	terminal_bind_arrow(EditLine *);
+libedit_private void	terminal_print_arrow(EditLine *, const wchar_t *);
+libedit_private int	terminal_clear_arrow(EditLine *, const wchar_t *);
+libedit_private int	terminal_set_arrow(EditLine *, const wchar_t *,
+    keymacro_value_t *, int);
+libedit_private void	terminal_end(EditLine *);
+libedit_private void	terminal_get(EditLine *, const char **);
+libedit_private int	terminal_set(EditLine *, const char *);
+libedit_private int	terminal_settc(EditLine *, int, const wchar_t **);
+libedit_private int	terminal_gettc(EditLine *, int, char **);
+libedit_private int	terminal_telltc(EditLine *, int, const wchar_t **);
+libedit_private int	terminal_echotc(EditLine *, int, const wchar_t **);
+libedit_private void	terminal_writec(EditLine *, wint_t);
+libedit_private int	terminal__putc(EditLine *, wint_t);
+libedit_private void	terminal__flush(EditLine *);
+
+/*
+ * Easy access macros
+ */
+#define	EL_FLAGS	(el)->el_terminal.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_terminal */