1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
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 */
|
