1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2013,2016 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Thomas E. Dickey 1999-on *
32 ****************************************************************************/
33
34 #include <curses.priv.h>
35 #include <tic.h>
36
37 MODULE_ID("$Id: name_match.c,v 1.25 2020/02/02 23:34:34 tom Exp $")
38
39 #define FirstName _nc_globals.first_name
40
41 #if NCURSES_USE_TERMCAP && NCURSES_XNAMES
42 static const char *
skip_index(const char * name)43 skip_index(const char *name)
44 {
45 if ((_nc_syntax == SYN_TERMCAP) && _nc_user_definable) {
46 const char *bar = strchr(name, '|');
47 if (bar != 0 && (bar - name) == 2)
48 name = bar + 1;
49 }
50 return name;
51 }
52 #endif
53
54 /*
55 * Get the primary name from the given name list. For terminfo, this is the
56 * first name. For termcap, this may be the second name, if the first one
57 * happens to be two characters.
58 */
59 NCURSES_EXPORT(char *)
_nc_first_name(const char * const sp)60 _nc_first_name(const char *const sp)
61 {
62 #if NO_LEAKS
63 if (sp == 0) {
64 if (FirstName != 0) {
65 FreeAndNull(FirstName);
66 }
67 } else
68 #endif
69 {
70 if (FirstName == 0)
71 FirstName = typeMalloc(char, MAX_NAME_SIZE + 1);
72
73 if (FirstName != 0) {
74 unsigned n;
75 const char *src = sp;
76 #if NCURSES_USE_TERMCAP && NCURSES_XNAMES
77 src = skip_index(sp);
78 #endif
79 for (n = 0; n < MAX_NAME_SIZE; n++) {
80 if ((FirstName[n] = src[n]) == '\0'
81 || (FirstName[n] == '|'))
82 break;
83 }
84 FirstName[n] = '\0';
85 }
86 }
87 return (FirstName);
88 }
89
90 /*
91 * Is the given name matched in namelist?
92 */
93 NCURSES_EXPORT(int)
_nc_name_match(const char * const namelst,const char * const name,const char * const delim)94 _nc_name_match(const char *const namelst, const char *const name, const char *const delim)
95 {
96 const char *s;
97
98 if ((s = namelst) != 0) {
99 while (*s != '\0') {
100 const char *d, *t;
101 int code, found;
102
103 for (d = name; *d != '\0'; d++) {
104 if (*s != *d)
105 break;
106 s++;
107 }
108 found = FALSE;
109 for (code = TRUE; *s != '\0'; code = FALSE, s++) {
110 for (t = delim; *t != '\0'; t++) {
111 if (*s == *t) {
112 found = TRUE;
113 break;
114 }
115 }
116 if (found)
117 break;
118 }
119 if (code && *d == '\0')
120 return code;
121 if (*s++ == 0)
122 break;
123 }
124 }
125 return FALSE;
126 }
127