1 files changed, 123 insertions, 0 deletions
diff --git a/lib/libedit/prompt.c b/lib/libedit/prompt.c
new file mode 100644
index 0000000..59ba200
--- /dev/null
+++ b/lib/libedit/prompt.c
@@ -0,0 +1,123 @@
+/*-
+ * 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.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)prompt.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * prompt.c: Prompt printing functions
+ */
+#include "sys.h"
+#include <stdio.h>
+#include "el.h"
+
+private char *prompt_default	__P((EditLine *));
+
+/* prompt_default():
+ *	Just a default prompt, in case the user did not provide one
+ */
+private char *
+/*ARGSUSED*/
+prompt_default(el)
+    EditLine *el;
+{
+    static char a[3] = { '?', ' ', '\0' };
+    return a;
+}
+
+
+/* prompt_print():
+ *	Print the prompt and update the prompt position.
+ *	We use an array of integers in case we want to pass
+ * 	literal escape sequences in the prompt and we want a
+ *	bit to flag them
+ */
+protected void
+prompt_print(el)
+    EditLine *el;
+{
+    char *p = (*el->el_prompt.p_func)(el);
+    while (*p)
+	re_putc(el, *p++);
+
+    el->el_prompt.p_pos.v = el->el_refresh.r_cursor.v;
+    el->el_prompt.p_pos.h = el->el_refresh.r_cursor.h;
+
+} /* end prompt_print */
+
+
+/* prompt_init():
+ *	Initialize the prompt stuff
+ */
+protected int
+prompt_init(el)
+    EditLine *el;
+{
+    el->el_prompt.p_func = prompt_default;
+    el->el_prompt.p_pos.v = 0;
+    el->el_prompt.p_pos.h = 0;
+    return 0;
+} /* end prompt_init */
+
+
+/* prompt_end():
+ *	Clean up the prompt stuff
+ */
+protected void
+/*ARGSUSED*/
+prompt_end(el)
+    EditLine *el;
+{
+} /* end prompt_end */
+
+
+/* prompt_set():
+ *	Install a prompt printing function
+ */
+protected int
+prompt_set(el, prf)
+    EditLine *el;
+    el_pfunc_t prf;
+{
+    if (prf == NULL)
+	el->el_prompt.p_func = prompt_default;
+    else
+	el->el_prompt.p_func = prf;
+    el->el_prompt.p_pos.v = 0;
+    el->el_prompt.p_pos.h = 0;
+    return 0;
+} /* end prompt_set */