freebsd-dev/lib/libedit/prompt.c

173 lines
4.3 KiB
C
Raw Normal View History

1994-05-27 05:00:24 +00:00
/*-
* 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.
*
* $NetBSD: prompt.c,v 1.7 2000/09/04 22:06:31 lukem Exp $
1994-05-27 05:00:24 +00:00
*/
#if !defined(lint) && !defined(SCCSID)
static char sccsid[] = "@(#)prompt.c 8.1 (Berkeley) 6/4/93";
#endif /* not lint && not SCCSID */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
1994-05-27 05:00:24 +00:00
/*
* prompt.c: Prompt printing functions
*/
#include "sys.h"
#include <stdio.h>
#include "el.h"
private char *prompt_default(EditLine *);
private char *prompt_default_r(EditLine *);
1994-05-27 05:00:24 +00:00
/* prompt_default():
* Just a default prompt, in case the user did not provide one
*/
private char *
/*ARGSUSED*/
prompt_default(EditLine *el)
{
static char a[3] = {'?', ' ', '\0'};
return (a);
}
/* prompt_default_r():
* Just a default rprompt, in case the user did not provide one
*/
private char *
/*ARGSUSED*/
prompt_default_r(EditLine *el)
1994-05-27 05:00:24 +00:00
{
static char a[1] = {'\0'};
return (a);
1994-05-27 05:00:24 +00:00
}
/* 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(EditLine *el, int op)
1994-05-27 05:00:24 +00:00
{
el_prompt_t *elp;
char *p;
1994-05-27 05:00:24 +00:00
if (op == EL_PROMPT)
elp = &el->el_prompt;
else
elp = &el->el_rprompt;
p = (elp->p_func) (el);
while (*p)
re_putc(el, *p++, 1);
1994-05-27 05:00:24 +00:00
elp->p_pos.v = el->el_refresh.r_cursor.v;
elp->p_pos.h = el->el_refresh.r_cursor.h;
}
1994-05-27 05:00:24 +00:00
/* prompt_init():
* Initialize the prompt stuff
*/
1995-05-30 05:51:47 +00:00
protected int
prompt_init(EditLine *el)
1994-05-27 05:00:24 +00:00
{
el->el_prompt.p_func = prompt_default;
el->el_prompt.p_pos.v = 0;
el->el_prompt.p_pos.h = 0;
el->el_rprompt.p_func = prompt_default_r;
el->el_rprompt.p_pos.v = 0;
el->el_rprompt.p_pos.h = 0;
return (0);
}
1994-05-27 05:00:24 +00:00
/* prompt_end():
* Clean up the prompt stuff
*/
protected void
1995-05-30 05:51:47 +00:00
/*ARGSUSED*/
prompt_end(EditLine *el)
1994-05-27 05:00:24 +00:00
{
}
1994-05-27 05:00:24 +00:00
/* prompt_set():
* Install a prompt printing function
*/
1995-05-30 05:51:47 +00:00
protected int
prompt_set(EditLine *el, el_pfunc_t prf, int op)
1994-05-27 05:00:24 +00:00
{
el_prompt_t *p;
if (op == EL_PROMPT)
p = &el->el_prompt;
else
p = &el->el_rprompt;
if (prf == NULL) {
if (op == EL_PROMPT)
p->p_func = prompt_default;
else
p->p_func = prompt_default_r;
} else
p->p_func = prf;
p->p_pos.v = 0;
p->p_pos.h = 0;
return (0);
}
/* prompt_get():
* Retrieve the prompt printing function
*/
protected int
prompt_get(EditLine *el, el_pfunc_t *prf, int op)
{
if (prf == NULL)
return (-1);
if (op == EL_PROMPT)
*prf = el->el_prompt.p_func;
else
*prf = el->el_rprompt.p_func;
return (0);
}