Import /usr/src/lib/libedit from NetBSD 8.0

1 files changed, 155 insertions, 0 deletions

diff --git a/bin/cash/libedit/el.h b/bin/cash/libedit/el.h
new file mode 100644
index 00000000..862e1976
--- /dev/null
+++ b/bin/cash/libedit/el.h
@@ -0,0 +1,155 @@
+/*	$NetBSD: el.h,v 1.41.8.1 2017/07/23 14:41:26 snj 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.
+ *
+ *	@(#)el.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.h: Internal structures.
+ */
+#ifndef _h_el
+#define	_h_el
+/*
+ * Local defaults
+ */
+#define	KSHVI
+#define	VIDEFAULT
+#define	ANCHOR
+
+#include "histedit.h"
+#include "chartype.h"
+
+#define	EL_BUFSIZ	((size_t)1024)	/* Maximum line size		*/
+
+#define	HANDLE_SIGNALS	0x01
+#define	NO_TTY		0x02
+#define	EDIT_DISABLED	0x04
+#define	UNBUFFERED	0x08
+#define	CHARSET_IS_UTF8 0x10
+#define	NARROW_HISTORY	0x40
+
+typedef unsigned char el_action_t;	/* Index to command array	*/
+
+typedef struct coord_t {		/* Position on the screen	*/
+	int	h;
+	int	v;
+} coord_t;
+
+typedef struct el_line_t {
+	wchar_t		*buffer;	/* Input line			*/
+	wchar_t	        *cursor;	/* Cursor position		*/
+	wchar_t	        *lastchar;	/* Last character		*/
+	const wchar_t	*limit;		/* Max position			*/
+} el_line_t;
+
+/*
+ * Editor state
+ */
+typedef struct el_state_t {
+	int		inputmode;	/* What mode are we in?		*/
+	int		doingarg;	/* Are we getting an argument?	*/
+	int		argument;	/* Numeric argument		*/
+	int		metanext;	/* Is the next char a meta char */
+	el_action_t	lastcmd;	/* Previous command		*/
+	el_action_t	thiscmd;	/* this command			*/
+	wchar_t		thisch;		/* char that generated it	*/
+} el_state_t;
+
+/*
+ * Until we come up with something better...
+ */
+#define	el_malloc(a)	malloc(a)
+#define	el_realloc(a,b)	realloc(a, b)
+#define	el_free(a)	free(a)
+
+#include "tty.h"
+#include "prompt.h"
+#include "literal.h"
+#include "keymacro.h"
+#include "terminal.h"
+#include "refresh.h"
+#include "chared.h"
+#include "search.h"
+#include "hist.h"
+#include "map.h"
+#include "sig.h"
+
+struct el_read_t;
+
+struct editline {
+	wchar_t		 *el_prog;	/* the program name		*/
+	FILE		 *el_infile;	/* Stdio stuff			*/
+	FILE		 *el_outfile;	/* Stdio stuff			*/
+	FILE		 *el_errfile;	/* Stdio stuff			*/
+	int		  el_infd;	/* Input file descriptor	*/
+	int		  el_outfd;	/* Output file descriptor	*/
+	int		  el_errfd;	/* Error file descriptor	*/
+	int		  el_flags;	/* Various flags.		*/
+	coord_t		  el_cursor;	/* Cursor location		*/
+	wint_t		**el_display;	/* Real screen image = what is there */
+	wint_t		**el_vdisplay;	/* Virtual screen image = what we see */
+	void		 *el_data;	/* Client data			*/
+	el_line_t	  el_line;	/* The current line information	*/
+	el_state_t	  el_state;	/* Current editor state		*/
+	el_terminal_t	  el_terminal;	/* Terminal dependent stuff	*/
+	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
+	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
+	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
+	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
+	el_literal_t	  el_literal;	/* prompt literal bits		*/
+	el_chared_t	  el_chared;	/* Characted editor stuff	*/
+	el_map_t	  el_map;	/* Key mapping stuff		*/
+	el_keymacro_t	  el_keymacro;	/* Key binding stuff		*/
+	el_history_t	  el_history;	/* History stuff		*/
+	el_search_t	  el_search;	/* Search stuff			*/
+	el_signal_t	  el_signal;	/* Signal handling stuff	*/
+	struct el_read_t *el_read;	/* Character reading stuff	*/
+	ct_buffer_t       el_visual;    /* Buffer for displayable str	*/
+	ct_buffer_t       el_scratch;   /* Scratch conversion buffer    */
+	ct_buffer_t       el_lgcyconv;  /* Buffer for legacy wrappers   */
+	LineInfo          el_lgcylinfo; /* Legacy LineInfo buffer       */
+};
+
+libedit_private int	el_editmode(EditLine *, int, const wchar_t **);
+
+#ifdef DEBUG
+#define	EL_ABORT(a)	do { \
+				fprintf(el->el_errfile, "%s, %d: ", \
+					 __FILE__, __LINE__); \
+				fprintf a; \
+				abort(); \
+			} while( /*CONSTCOND*/0);
+#else
+#define EL_ABORT(a)	abort()
+#endif
+#endif /* _h_el */