root/src/noitedit/prompt.c

Revision bafab25395cb398ddf5eae42145f0d0bfc00ec22, 4.4 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 6 years ago)

import of libedit... prepare to hack

  • Property mode set to 100644
Line 
1 /*      $NetBSD: prompt.c,v 1.8 2001/01/10 07:45:41 jdolecek Exp $      */
2
3 /*-
4  * Copyright (c) 1992, 1993
5  *      The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Christos Zoulas of Cornell University.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *      This product includes software developed by the University of
21  *      California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38
39 #include "compat.h"
40 #if !defined(lint) && !defined(SCCSID)
41 #if 0
42 static char sccsid[] = "@(#)prompt.c    8.1 (Berkeley) 6/4/93";
43 #else
44 __RCSID("$NetBSD: prompt.c,v 1.8 2001/01/10 07:45:41 jdolecek Exp $");
45 #endif
46 #endif /* not lint && not SCCSID */
47
48 /*
49  * prompt.c: Prompt printing functions
50  */
51 #include "sys.h"
52 #include <stdio.h>
53 #include "el.h"
54
55 private char    *prompt_default(EditLine *);
56 private char    *prompt_default_r(EditLine *);
57
58 /* prompt_default():
59  *      Just a default prompt, in case the user did not provide one
60  */
61 private char *
62 /*ARGSUSED*/
63 prompt_default(EditLine *el)
64 {
65         static char a[3] = {'?', ' ', '\0'};
66
67         return (a);
68 }
69
70
71 /* prompt_default_r():
72  *      Just a default rprompt, in case the user did not provide one
73  */
74 private char *
75 /*ARGSUSED*/
76 prompt_default_r(EditLine *el)
77 {
78         static char a[1] = {'\0'};
79
80         return (a);
81 }
82
83
84 /* prompt_print():
85  *      Print the prompt and update the prompt position.
86  *      We use an array of integers in case we want to pass
87  *      literal escape sequences in the prompt and we want a
88  *      bit to flag them
89  */
90 protected void
91 prompt_print(EditLine *el, int op)
92 {
93         el_prompt_t *elp;
94         char *p;
95
96         if (op == EL_PROMPT)
97                 elp = &el->el_prompt;
98         else
99                 elp = &el->el_rprompt;
100         p = (elp->p_func) (el);
101         while (*p)
102                 re_putc(el, *p++, 1);
103
104         elp->p_pos.v = el->el_refresh.r_cursor.v;
105         elp->p_pos.h = el->el_refresh.r_cursor.h;
106 }
107
108
109 /* prompt_init():
110  *      Initialize the prompt stuff
111  */
112 protected int
113 prompt_init(EditLine *el)
114 {
115
116         el->el_prompt.p_func = prompt_default;
117         el->el_prompt.p_pos.v = 0;
118         el->el_prompt.p_pos.h = 0;
119         el->el_rprompt.p_func = prompt_default_r;
120         el->el_rprompt.p_pos.v = 0;
121         el->el_rprompt.p_pos.h = 0;
122         return (0);
123 }
124
125
126 /* prompt_end():
127  *      Clean up the prompt stuff
128  */
129 protected void
130 /*ARGSUSED*/
131 prompt_end(EditLine *el)
132 {
133 }
134
135
136 /* prompt_set():
137  *      Install a prompt printing function
138  */
139 protected int
140 prompt_set(EditLine *el, el_pfunc_t prf, int op)
141 {
142         el_prompt_t *p;
143
144         if (op == EL_PROMPT)
145                 p = &el->el_prompt;
146         else
147                 p = &el->el_rprompt;
148         if (prf == NULL) {
149                 if (op == EL_PROMPT)
150                         p->p_func = prompt_default;
151                 else
152                         p->p_func = prompt_default_r;
153         } else
154                 p->p_func = prf;
155         p->p_pos.v = 0;
156         p->p_pos.h = 0;
157         return (0);
158 }
159
160
161 /* prompt_get():
162  *      Retrieve the prompt printing function
163  */
164 protected int
165 prompt_get(EditLine *el, el_pfunc_t *prf, int op)
166 {
167
168         if (prf == NULL)
169                 return (-1);
170         if (op == EL_PROMPT)
171                 *prf = el->el_prompt.p_func;
172         else
173                 *prf = el->el_rprompt.p_func;
174         return (0);
175 }
Note: See TracBrowser for help on using the browser.