BSD 4.4 Lite Lib Sources

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/libedit/hist.h b/lib/libedit/hist.h
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+/*-
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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
+
+#include "histedit.h"
+
+typedef const HistEvent *	(*hist_fun_t) __P((ptr_t, int, ...));
+
+typedef struct el_history_t {
+    char *buf;				/* The history buffer		*/
+    char *last;				/* The last character		*/
+    int eventno;			/* Event we are looking for	*/
+    ptr_t ref;				/* Argument for history fcns	*/
+    hist_fun_t fun;			/* Event access			*/
+    const HistEvent *ev;		/* Event cookie			*/
+} el_history_t;
+
+#define HIST_FUN(el, fn, arg)	\
+    ((((el)->el_history.ev = \
+       (*(el)->el_history.fun)((el)->el_history.ref, fn, arg)) == NULL) ? \
+     NULL : (el)->el_history.ev->str)
+
+#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_EVENT(el, num)	HIST_FUN(el, H_EVENT, num)
+
+protected int 		hist_init	__P((EditLine *));
+protected void 		hist_end	__P((EditLine *));
+protected el_action_t	hist_get	__P((EditLine *));
+protected int		hist_set	__P((EditLine *, hist_fun_t, ptr_t));
+protected int		hist_list	__P((EditLine *, int, char **));
+
+#endif /* _h_el_hist */