1 /* $OpenBSD: name_match.c,v 1.5 2023/10/17 09:52:09 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020 Thomas E. Dickey *
5 * Copyright 1998-2013,2016 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Thomas E. Dickey 1999-on *
34 ****************************************************************************/
35
36 #include <curses.priv.h>
37 #include <tic.h>
38
39 MODULE_ID("$Id: name_match.c,v 1.5 2023/10/17 09:52:09 nicm Exp $")
40
41 #define FirstName _nc_globals.first_name
42
43 #if NCURSES_USE_TERMCAP && NCURSES_XNAMES
44 static const char *
skip_index(const char * name)45 skip_index(const char *name)
46 {
47 if ((_nc_syntax == SYN_TERMCAP) && _nc_user_definable) {
48 const char *bar = strchr(name, '|');
49 if (bar != 0 && (bar - name) == 2)
50 name = bar + 1;
51 }
52 return name;
53 }
54 #endif
55
56 /*
57 * Get the primary name from the given name list. For terminfo, this is the
58 * first name. For termcap, this may be the second name, if the first one
59 * happens to be two characters.
60 */
61 NCURSES_EXPORT(char *)
_nc_first_name(const char * const sp)62 _nc_first_name(const char *const sp)
63 {
64 #if NO_LEAKS
65 if (sp == 0) {
66 if (FirstName != 0) {
67 FreeAndNull(FirstName);
68 }
69 } else
70 #endif
71 {
72 if (FirstName == 0)
73 FirstName = typeMalloc(char, MAX_NAME_SIZE + 1);
74
75 if (FirstName != 0) {
76 unsigned n;
77 const char *src = sp;
78 #if NCURSES_USE_TERMCAP && NCURSES_XNAMES
79 src = skip_index(sp);
80 #endif
81 for (n = 0; n < MAX_NAME_SIZE; n++) {
82 if ((FirstName[n] = src[n]) == '\0'
83 || (FirstName[n] == '|'))
84 break;
85 }
86 FirstName[n] = '\0';
87 }
88 }
89 return (FirstName);
90 }
91
92 /*
93 * Is the given name matched in namelist?
94 */
95 NCURSES_EXPORT(int)
_nc_name_match(const char * const namelst,const char * const name,const char * const delim)96 _nc_name_match(const char *const namelst, const char *const name, const char *const delim)
97 {
98 const char *s;
99
100 if ((s = namelst) != 0) {
101 while (*s != '\0') {
102 const char *d, *t;
103 int code, found;
104
105 for (d = name; *d != '\0'; d++) {
106 if (*s != *d)
107 break;
108 s++;
109 }
110 found = FALSE;
111 for (code = TRUE; *s != '\0'; code = FALSE, s++) {
112 for (t = delim; *t != '\0'; t++) {
113 if (*s == *t) {
114 found = TRUE;
115 break;
116 }
117 }
118 if (found)
119 break;
120 }
121 if (code && *d == '\0')
122 return code;
123 if (*s++ == 0)
124 break;
125 }
126 }
127 return FALSE;
128 }
129