GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libedit/prompt.c Lines: 17 48 35.4 %
Date: 2017-11-07 Branches: 2 22 9.1 %

Line Branch Exec Source
1
/*	$OpenBSD: prompt.c,v 1.13 2016/04/11 21:17:29 schwarze Exp $	*/
2
/*	$NetBSD: prompt.c,v 1.25 2016/04/11 18:56:31 christos Exp $	*/
3
4
/*-
5
 * Copyright (c) 1992, 1993
6
 *	The Regents of the University of California.  All rights reserved.
7
 *
8
 * This code is derived from software contributed to Berkeley by
9
 * Christos Zoulas of Cornell University.
10
 *
11
 * Redistribution and use in source and binary forms, with or without
12
 * modification, are permitted provided that the following conditions
13
 * are met:
14
 * 1. Redistributions of source code must retain the above copyright
15
 *    notice, this list of conditions and the following disclaimer.
16
 * 2. Redistributions in binary form must reproduce the above copyright
17
 *    notice, this list of conditions and the following disclaimer in the
18
 *    documentation and/or other materials provided with the distribution.
19
 * 3. Neither the name of the University nor the names of its contributors
20
 *    may be used to endorse or promote products derived from this software
21
 *    without specific prior written permission.
22
 *
23
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33
 * SUCH DAMAGE.
34
 */
35
36
#include "config.h"
37
38
/*
39
 * prompt.c: Prompt printing functions
40
 */
41
#include <stdio.h>
42
#include "el.h"
43
44
static wchar_t	*prompt_default(EditLine *);
45
static wchar_t	*prompt_default_r(EditLine *);
46
47
/* prompt_default():
48
 *	Just a default prompt, in case the user did not provide one
49
 */
50
static wchar_t *
51
/*ARGSUSED*/
52
prompt_default(EditLine *el __attribute__((__unused__)))
53
{
54
	static wchar_t a[3] = L"? ";
55
56
	return a;
57
}
58
59
60
/* prompt_default_r():
61
 *	Just a default rprompt, in case the user did not provide one
62
 */
63
static wchar_t *
64
/*ARGSUSED*/
65
prompt_default_r(EditLine *el __attribute__((__unused__)))
66
{
67
	static wchar_t a[1] = L"";
68
69
	return a;
70
}
71
72
73
/* prompt_print():
74
 *	Print the prompt and update the prompt position.
75
 */
76
protected void
77
prompt_print(EditLine *el, int op)
78
{
79
	el_prompt_t *elp;
80
	wchar_t *p;
81
	int ignore = 0;
82
83
	if (op == EL_PROMPT)
84
		elp = &el->el_prompt;
85
	else
86
		elp = &el->el_rprompt;
87
88
	if (elp->p_wide)
89
		p = (*elp->p_func)(el);
90
	else
91
		p = ct_decode_string((char *)(void *)(*elp->p_func)(el),
92
		    &el->el_scratch);
93
94
	for (; *p; p++) {
95
		if (elp->p_ignore == *p) {
96
			ignore = !ignore;
97
			continue;
98
		}
99
		if (ignore)
100
			terminal__putc(el, *p);
101
		else
102
			re_putc(el, *p, 1);
103
	}
104
105
	elp->p_pos.v = el->el_refresh.r_cursor.v;
106
	elp->p_pos.h = el->el_refresh.r_cursor.h;
107
}
108
109
110
/* prompt_init():
111
 *	Initialize the prompt stuff
112
 */
113
protected int
114
prompt_init(EditLine *el)
115
{
116
117
12
	el->el_prompt.p_func = prompt_default;
118
6
	el->el_prompt.p_pos.v = 0;
119
6
	el->el_prompt.p_pos.h = 0;
120
6
	el->el_prompt.p_ignore = '\0';
121
6
	el->el_rprompt.p_func = prompt_default_r;
122
6
	el->el_rprompt.p_pos.v = 0;
123
6
	el->el_rprompt.p_pos.h = 0;
124
6
	el->el_rprompt.p_ignore = '\0';
125
6
	return 0;
126
}
127
128
129
/* prompt_end():
130
 *	Clean up the prompt stuff
131
 */
132
protected void
133
/*ARGSUSED*/
134
prompt_end(EditLine *el __attribute__((__unused__)))
135
{
136
}
137
138
139
/* prompt_set():
140
 *	Install a prompt printing function
141
 */
142
protected int
143
prompt_set(EditLine *el, el_pfunc_t prf, wchar_t c, int op, int wide)
144
{
145
	el_prompt_t *p;
146
147
12
	if (op == EL_PROMPT || op == EL_PROMPT_ESC)
148
6
		p = &el->el_prompt;
149
	else
150
		p = &el->el_rprompt;
151
152
6
	if (prf == NULL) {
153
		if (op == EL_PROMPT || op == EL_PROMPT_ESC)
154
			p->p_func = prompt_default;
155
		else
156
			p->p_func = prompt_default_r;
157
	} else {
158
		p->p_func = prf;
159
	}
160
161
6
	p->p_ignore = c;
162
163
6
	p->p_pos.v = 0;
164
6
	p->p_pos.h = 0;
165
6
	p->p_wide = wide;
166
167
6
	return 0;
168
}
169
170
171
/* prompt_get():
172
 *	Retrieve the prompt printing function
173
 */
174
protected int
175
prompt_get(EditLine *el, el_pfunc_t *prf, wchar_t *c, int op)
176
{
177
	el_prompt_t *p;
178
179
	if (prf == NULL)
180
		return -1;
181
182
	if (op == EL_PROMPT)
183
		p = &el->el_prompt;
184
	else
185
		p = &el->el_rprompt;
186
187
	if (prf)
188
		*prf = p->p_func;
189
	if (c)
190
		*c = p->p_ignore;
191
192
	return 0;
193
}