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

1 files changed, 155 insertions, 0 deletions

diff --git a/bin/cash/libedit/chared.h b/bin/cash/libedit/chared.h
new file mode 100644
index 00000000..39f7d517
--- /dev/null
+++ b/bin/cash/libedit/chared.h
@@ -0,0 +1,155 @@
+/*	$NetBSD: chared.h,v 1.30 2016/05/22 19:44:26 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.
+ *
+ *	@(#)chared.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.chared.h: Character editor interface
+ */
+#ifndef _h_el_chared
+#define	_h_el_chared
+
+/*
+ * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
+ * like real vi: i.e. the transition from command<->insert modes moves
+ * the cursor.
+ *
+ * On the other hand we really don't want to move the cursor, because
+ * all the editing commands don't include the character under the cursor.
+ * Probably the best fix is to make all the editing commands aware of
+ * this fact.
+ */
+#define	VI_MOVE
+
+/*
+ * Undo information for vi - no undo in emacs (yet)
+ */
+typedef struct c_undo_t {
+	ssize_t	 len;			/* length of saved line */
+	int	 cursor;		/* position of saved cursor */
+	wchar_t	*buf;			/* full saved text */
+} c_undo_t;
+
+/* redo for vi */
+typedef struct c_redo_t {
+	wchar_t	*buf;			/* redo insert key sequence */
+	wchar_t	*pos;
+	wchar_t	*lim;
+	el_action_t	cmd;		/* command to redo */
+	wchar_t	ch;			/* char that invoked it */
+	int	count;
+	int	action;			/* from cv_action() */
+} c_redo_t;
+
+/*
+ * Current action information for vi
+ */
+typedef struct c_vcmd_t {
+	int	 action;
+	wchar_t	*pos;
+} c_vcmd_t;
+
+/*
+ * Kill buffer for emacs
+ */
+typedef struct c_kill_t {
+	wchar_t	*buf;
+	wchar_t	*last;
+	wchar_t	*mark;
+} c_kill_t;
+
+typedef void (*el_zfunc_t)(EditLine *, void *);
+typedef const char *(*el_afunc_t)(void *, const char *);
+
+/*
+ * Note that we use both data structures because the user can bind
+ * commands from both editors!
+ */
+typedef struct el_chared_t {
+	c_undo_t	c_undo;
+	c_kill_t	c_kill;
+	c_redo_t	c_redo;
+	c_vcmd_t	c_vcmd;
+	el_zfunc_t	c_resizefun;
+	el_afunc_t	c_aliasfun;
+	void *		c_resizearg;
+	void *		c_aliasarg;
+} el_chared_t;
+
+
+#define	STRQQ		"\"\""
+
+#define	isglob(a)	(strchr("*[]?", (a)) != NULL)
+
+#define	NOP		0x00
+#define	DELETE		0x01
+#define	INSERT		0x02
+#define	YANK		0x04
+
+#define	CHAR_FWD	(+1)
+#define	CHAR_BACK	(-1)
+
+#define	MODE_INSERT	0
+#define	MODE_REPLACE	1
+#define	MODE_REPLACE_1	2
+
+
+libedit_private int	 cv__isword(wint_t);
+libedit_private int	 cv__isWord(wint_t);
+libedit_private void	 cv_delfini(EditLine *);
+libedit_private wchar_t *cv__endword(wchar_t *, wchar_t *, int, int (*)(wint_t));
+libedit_private int	 ce__isword(wint_t);
+libedit_private void	 cv_undo(EditLine *);
+libedit_private void	 cv_yank(EditLine *, const wchar_t *, int);
+libedit_private wchar_t *cv_next_word(EditLine*, wchar_t *, wchar_t *, int,
+			int (*)(wint_t));
+libedit_private wchar_t *cv_prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
+libedit_private wchar_t *c__next_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
+libedit_private wchar_t *c__prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
+libedit_private void	 c_insert(EditLine *, int);
+libedit_private void	 c_delbefore(EditLine *, int);
+libedit_private void	 c_delbefore1(EditLine *);
+libedit_private void	 c_delafter(EditLine *, int);
+libedit_private void	 c_delafter1(EditLine *);
+libedit_private int	 c_gets(EditLine *, wchar_t *, const wchar_t *);
+libedit_private int	 c_hpos(EditLine *);
+
+libedit_private int	 ch_init(EditLine *);
+libedit_private void	 ch_reset(EditLine *);
+libedit_private int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
+libedit_private int	 ch_aliasfun(EditLine *, el_afunc_t, void *);
+libedit_private int	 ch_enlargebufs(EditLine *, size_t);
+libedit_private void	 ch_end(EditLine *);
+
+#endif /* _h_el_chared */