freebsd-dev/lib/libedit/prompt.c
Pedro F. Giffuni c4a1f025cf Sync some (mostly cosmetical) changes from NetBSD
Makefile,v 1.37
tc1.c v 1.3
Rename TEST/test.c tc1.c

common.c,v 1.23
pass lint on _LP64.

emacs.c,v 1.22
pass lint on _LP64.

filecomplete.h,v 1.8
mv NetBSD ID back from 1.9 as we don't
have the widecharacter support.

prompt.c,v 1.14
prompt.h,v 1.9
term.h,v 1.20
read.h,v 1.6
Update NetBSD version strings

sys.h,v 1.12
Misc sun stuff.

tty.c 1.31
handle EINTR in the termios operations
Allow a single process to control multiple ttys (for pthreads using _REENTRANT)
using multiple EditLine objects.
pass lint on _LP64.
Don't depend on side effects inside an assert

MFC after:	1 week
Obtained from:	NetBSD
2014-07-10 17:52:17 +00:00

193 lines
4.4 KiB
C

/*-
* 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.
*
* $NetBSD: prompt.c,v 1.14 2009/03/31 17:38:27 christos Exp $
*/
#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("$FreeBSD$");
/*
* 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 *);
/* prompt_default():
* Just a default prompt, in case the user did not provide one
*/
private char *
/*ARGSUSED*/
prompt_default(EditLine *el __unused)
{
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 __unused)
{
static char a[1] = {'\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(EditLine *el, int op)
{
el_prompt_t *elp;
char *p;
int ignore = 0;
if (op == EL_PROMPT)
elp = &el->el_prompt;
else
elp = &el->el_rprompt;
for (p = (*elp->p_func)(el); *p; p++) {
if (elp->p_ignore == *p) {
ignore = !ignore;
continue;
}
if (ignore)
term__putc(el, *p);
else
re_putc(el, *p, 1);
}
elp->p_pos.v = el->el_refresh.r_cursor.v;
elp->p_pos.h = el->el_refresh.r_cursor.h;
}
/* prompt_init():
* Initialize the prompt stuff
*/
protected int
prompt_init(EditLine *el)
{
el->el_prompt.p_func = prompt_default;
el->el_prompt.p_pos.v = 0;
el->el_prompt.p_pos.h = 0;
el->el_prompt.p_ignore = '\0';
el->el_rprompt.p_func = prompt_default_r;
el->el_rprompt.p_pos.v = 0;
el->el_rprompt.p_pos.h = 0;
el->el_rprompt.p_ignore = '\0';
return 0;
}
/* prompt_end():
* Clean up the prompt stuff
*/
protected void
/*ARGSUSED*/
prompt_end(EditLine *el __unused)
{
}
/* prompt_set():
* Install a prompt printing function
*/
protected int
prompt_set(EditLine *el, el_pfunc_t prf, char c, int op)
{
el_prompt_t *p;
if (op == EL_PROMPT || op == EL_PROMPT_ESC)
p = &el->el_prompt;
else
p = &el->el_rprompt;
if (prf == NULL) {
if (op == EL_PROMPT || op == EL_PROMPT_ESC)
p->p_func = prompt_default;
else
p->p_func = prompt_default_r;
} else
p->p_func = prf;
p->p_ignore = c;
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, char *c, int op)
{
el_prompt_t *p;
if (prf == NULL)
return -1;
if (op == EL_PROMPT)
p = &el->el_prompt;
else
p = &el->el_rprompt;
*prf = el->el_rprompt.p_func;
if (c)
*c = p->p_ignore;
return 0;
}