addchnstr.c revision 1.3.10.1 1 /* $NetBSD: addchnstr.c,v 1.3.10.1 2008/05/18 12:30:34 yamt Exp $ */
2
3 /*
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Douwe Kiela (virtus (at) wanadoo.nl).
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __RCSID("$NetBSD: addchnstr.c,v 1.3.10.1 2008/05/18 12:30:34 yamt Exp $");
35 #endif /* not lint */
36
37 #include <stdlib.h>
38
39 #include "curses.h"
40 #include "curses_private.h"
41
42 #ifndef _CURSES_USE_MACROS
43
44 /*
45 * addchstr --
46 * Add a string to stdscr starting at (_cury, _curx).
47 */
48 int
49 addchstr(const chtype *chstr)
50 {
51 return waddchnstr(stdscr, chstr, -1);
52 }
53
54 /*
55 * waddchstr --
56 * Add a string to the given window starting at (_cury, _curx).
57 */
58 int
59 waddchstr(WINDOW *win, const chtype *chstr)
60 {
61 return waddchnstr(win, chstr, -1);
62 }
63
64 /*
65 * addchnstr --
66 * Add a string (at most n characters) to stdscr starting
67 * at (_cury, _curx). If n is negative, add the entire string.
68 */
69 int
70 addchnstr(const chtype *chstr, int n)
71 {
72 return waddchnstr(stdscr, chstr, n);
73 }
74
75 /*
76 * mvaddchstr --
77 * Add a string to stdscr starting at (y, x)
78 */
79 int
80 mvaddchstr(int y, int x, const chtype *chstr)
81 {
82 return mvwaddchnstr(stdscr, y, x, chstr, -1);
83 }
84
85 /*
86 * mvwaddchstr --
87 * Add a string to the given window starting at (y, x)
88 */
89 int
90 mvwaddchstr(WINDOW *win, int y, int x, const chtype *chstr)
91 {
92 return mvwaddchnstr(win, y, x, chstr, -1);
93 }
94
95 /*
96 * mvaddchnstr --
97 * Add a string of at most n characters to stdscr
98 * starting at (y, x).
99 */
100 int
101 mvaddchnstr(int y, int x, const chtype *chstr, int n)
102 {
103 return mvwaddchnstr(stdscr, y, x, chstr, n);
104 }
105
106 /*
107 * mvwaddchnstr --
108 * Add a string of at most n characters to the given window
109 * starting at (y, x).
110 */
111 int
112 mvwaddchnstr(WINDOW *win, int y, int x, const chtype *chstr, int n)
113 {
114 if (wmove(win, y, x) == ERR)
115 return ERR;
116
117 return waddchnstr(win, chstr, n);
118 }
119
120 #endif
121
122 /*
123 * waddchnstr --
124 * Add a string (at most n characters) to the given window
125 * starting at (_cury, _curx). If n is negative, add the
126 * entire string.
127 */
128 int
129 waddchnstr(WINDOW *win, const chtype *chstr, int n)
130 {
131 size_t len;
132 const chtype *chp;
133 attr_t attr;
134 char *ocp, *cp, *start;
135 int i, ret;
136
137 #ifdef DEBUG
138 __CTRACE(__CTRACE_INPUT, "waddchnstr: win = %p, chstr = %p, n = %d\n",
139 win, chstr, n);
140 #endif
141
142 if (n >= 0)
143 for (chp = chstr, len = 0; n-- && *chp++; ++len);
144 else
145 for (chp = chstr, len = 0; *chp++; ++len);
146
147 if ((ocp = malloc(len + 1)) == NULL)
148 return ERR;
149 chp = chstr;
150 cp = ocp;
151 start = ocp;
152 i = 0;
153 attr = (*chp) & __ATTRIBUTES;
154 while (len) {
155 *cp = (*chp) & __CHARTEXT;
156 cp++;
157 chp++;
158 i++;
159 len--;
160 if (((*chp) & __ATTRIBUTES) != attr) {
161 *cp = '\0';
162 if (__waddbytes(win, start, i, attr) == ERR) {
163 free(ocp);
164 return ERR;
165 }
166 attr = (*chp) & __ATTRIBUTES;
167 start = cp;
168 i = 0;
169 }
170 }
171 *cp = '\0';
172 ret = __waddbytes(win, start, i, attr);
173 free(ocp);
174 return ret;
175 }
176