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

1 files changed, 79 insertions, 0 deletions

diff --git a/bin/cash/libedit/hist.h b/bin/cash/libedit/hist.h
new file mode 100644
index 00000000..c58c5bfe
--- /dev/null
+++ b/bin/cash/libedit/hist.h
@@ -0,0 +1,79 @@
+/*	$NetBSD: hist.h,v 1.22 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.
+ *
+ *	@(#)hist.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.hist.c: History functions
+ */
+#ifndef _h_el_hist
+#define	_h_el_hist
+
+typedef int (*hist_fun_t)(void *, HistEventW *, int, ...);
+
+typedef struct el_history_t {
+	wchar_t		*buf;		/* The history buffer		*/
+	size_t		 sz;		/* Size of history buffer	*/
+	wchar_t		*last;		/* The last character		*/
+	int		 eventno;	/* Event we are looking for	*/
+	void		*ref;		/* Argument for history fcns	*/
+	hist_fun_t	 fun;		/* Event access			*/
+	HistEventW	 ev;		/* Event cookie			*/
+} el_history_t;
+
+#define	HIST_FUN_INTERNAL(el, fn, arg)	\
+    ((((*(el)->el_history.fun) ((el)->el_history.ref, &(el)->el_history.ev, \
+	fn, arg)) == -1) ? NULL : (el)->el_history.ev.str)
+#define HIST_FUN(el, fn, arg) \
+    (((el)->el_flags & NARROW_HISTORY) ? hist_convert(el, fn, arg) : \
+	HIST_FUN_INTERNAL(el, fn, arg))
+
+#define	HIST_NEXT(el)		HIST_FUN(el, H_NEXT, NULL)
+#define	HIST_FIRST(el)		HIST_FUN(el, H_FIRST, NULL)
+#define	HIST_LAST(el)		HIST_FUN(el, H_LAST, NULL)
+#define	HIST_PREV(el)		HIST_FUN(el, H_PREV, NULL)
+#define	HIST_SET(el, num)	HIST_FUN(el, H_SET, num)
+#define	HIST_LOAD(el, fname)	HIST_FUN(el, H_LOAD fname)
+#define	HIST_SAVE(el, fname)	HIST_FUN(el, H_SAVE fname)
+#define	HIST_SAVE_FP(el, fp)	HIST_FUN(el, H_SAVE_FP fp)
+
+libedit_private int		hist_init(EditLine *);
+libedit_private void		hist_end(EditLine *);
+libedit_private el_action_t	hist_get(EditLine *);
+libedit_private int		hist_set(EditLine *, hist_fun_t, void *);
+libedit_private int		hist_command(EditLine *, int, const wchar_t **);
+libedit_private int		hist_enlargebuf(EditLine *, size_t, size_t);
+libedit_private wchar_t	*hist_convert(EditLine *, int, void *);
+
+#endif /* _h_el_hist */