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7be85be7 | 1 | /*- |
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2 | * Copyright (c) 1992, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
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4 | * |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Christos Zoulas of Cornell University. | |
7 | * | |
ad787160 C |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
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35 | */ |
36 | ||
b6dd18ed | 37 | #if !defined(lint) && !defined(SCCSID) |
ad787160 | 38 | static char sccsid[] = "@(#)prompt.c 8.1 (Berkeley) 6/4/93"; |
b6dd18ed | 39 | #endif /* not lint && not SCCSID */ |
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40 | |
41 | /* | |
b6dd18ed | 42 | * prompt.c: Prompt printing functions |
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43 | */ |
44 | #include "sys.h" | |
45 | #include <stdio.h> | |
46 | #include "el.h" | |
47 | ||
48 | private char *prompt_default __P((EditLine *)); | |
49 | ||
50 | /* prompt_default(): | |
51 | * Just a default prompt, in case the user did not provide one | |
52 | */ | |
53 | private char * | |
54 | /*ARGSUSED*/ | |
55 | prompt_default(el) | |
56 | EditLine *el; | |
57 | { | |
58 | static char a[3] = { '?', ' ', '\0' }; | |
59 | return a; | |
60 | } | |
61 | ||
62 | ||
63 | /* prompt_print(): | |
64 | * Print the prompt and update the prompt position. | |
65 | * We use an array of integers in case we want to pass | |
66 | * literal escape sequences in the prompt and we want a | |
67 | * bit to flag them | |
68 | */ | |
69 | protected void | |
70 | prompt_print(el) | |
71 | EditLine *el; | |
72 | { | |
73 | char *p = (*el->el_prompt.p_func)(el); | |
74 | while (*p) | |
75 | re_putc(el, *p++); | |
76 | ||
77 | el->el_prompt.p_pos.v = el->el_refresh.r_cursor.v; | |
78 | el->el_prompt.p_pos.h = el->el_refresh.r_cursor.h; | |
79 | ||
80 | } /* end prompt_print */ | |
81 | ||
82 | ||
83 | /* prompt_init(): | |
84 | * Initialize the prompt stuff | |
85 | */ | |
86 | protected int | |
87 | prompt_init(el) | |
88 | EditLine *el; | |
89 | { | |
90 | el->el_prompt.p_func = prompt_default; | |
91 | el->el_prompt.p_pos.v = 0; | |
92 | el->el_prompt.p_pos.h = 0; | |
93 | return 0; | |
94 | } /* end prompt_init */ | |
95 | ||
96 | ||
97 | /* prompt_end(): | |
98 | * Clean up the prompt stuff | |
99 | */ | |
100 | protected void | |
101 | /*ARGSUSED*/ | |
102 | prompt_end(el) | |
103 | EditLine *el; | |
104 | { | |
105 | } /* end prompt_end */ | |
106 | ||
107 | ||
108 | /* prompt_set(): | |
109 | * Install a prompt printing function | |
110 | */ | |
111 | protected int | |
112 | prompt_set(el, prf) | |
113 | EditLine *el; | |
114 | el_pfunc_t prf; | |
115 | { | |
116 | if (prf == NULL) | |
117 | el->el_prompt.p_func = prompt_default; | |
118 | else | |
119 | el->el_prompt.p_func = prf; | |
120 | el->el_prompt.p_pos.v = 0; | |
121 | el->el_prompt.p_pos.h = 0; | |
122 | return 0; | |
123 | } /* end prompt_set */ |