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48faced0 DE |
1 | /* Some commonly-used VEC types. |
2 | ||
618f726f | 3 | Copyright (C) 2012-2016 Free Software Foundation, Inc. |
48faced0 DE |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
727605ca | 20 | #include "common-defs.h" |
48faced0 DE |
21 | #include "gdb_vecs.h" |
22 | #include "host-defs.h" | |
23 | ||
24 | /* Call xfree for each element of CHAR_PTR_VEC and final VEC_free for | |
25 | CHAR_PTR_VEC itself. | |
26 | ||
27 | You must not modify CHAR_PTR_VEC after it got registered with this function | |
28 | by make_cleanup as the CHAR_PTR_VEC base address may change on its updates. | |
29 | Contrary to VEC_free this function does not (cannot) clear the pointer. */ | |
30 | ||
31 | void | |
32 | free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
33 | { | |
34 | int ix; | |
35 | char *name; | |
36 | ||
37 | for (ix = 0; VEC_iterate (char_ptr, char_ptr_vec, ix, name); ++ix) | |
38 | xfree (name); | |
39 | VEC_free (char_ptr, char_ptr_vec); | |
40 | } | |
41 | ||
749234e5 DE |
42 | /* Worker function to split character delimiter separated string of fields |
43 | STR into a CHAR_PTR_VEC. */ | |
48faced0 | 44 | |
749234e5 DE |
45 | static void |
46 | delim_string_to_char_ptr_vec_append (VEC (char_ptr) **vecp, | |
47 | const char *str, char delimiter) | |
48faced0 DE |
48 | { |
49 | do | |
50 | { | |
51 | size_t this_len; | |
e6a959d6 PA |
52 | const char *next_field; |
53 | char *this_field; | |
48faced0 | 54 | |
749234e5 DE |
55 | next_field = strchr (str, delimiter); |
56 | if (next_field == NULL) | |
57 | this_len = strlen (str); | |
48faced0 DE |
58 | else |
59 | { | |
749234e5 DE |
60 | this_len = next_field - str; |
61 | next_field++; | |
48faced0 DE |
62 | } |
63 | ||
224c3ddb | 64 | this_field = (char *) xmalloc (this_len + 1); |
749234e5 DE |
65 | memcpy (this_field, str, this_len); |
66 | this_field[this_len] = '\0'; | |
67 | VEC_safe_push (char_ptr, *vecp, this_field); | |
48faced0 | 68 | |
749234e5 | 69 | str = next_field; |
48faced0 | 70 | } |
749234e5 DE |
71 | while (str != NULL); |
72 | } | |
73 | ||
74 | /* Split STR, a list of DELIMITER-separated fields, into a CHAR_PTR_VEC. | |
75 | ||
76 | You may modify the returned strings. | |
77 | Read free_char_ptr_vec for its cleanup. */ | |
78 | ||
79 | VEC (char_ptr) * | |
80 | delim_string_to_char_ptr_vec (const char *str, char delimiter) | |
81 | { | |
82 | VEC (char_ptr) *retval = NULL; | |
83 | ||
84 | delim_string_to_char_ptr_vec_append (&retval, str, delimiter); | |
85 | ||
86 | return retval; | |
87 | } | |
88 | ||
89 | /* Extended version of dirnames_to_char_ptr_vec - additionally if *VECP is | |
90 | non-NULL the new list elements from DIRNAMES are appended to the existing | |
91 | *VECP list of entries. *VECP address will be updated by this call. */ | |
92 | ||
93 | void | |
94 | dirnames_to_char_ptr_vec_append (VEC (char_ptr) **vecp, const char *dirnames) | |
95 | { | |
96 | delim_string_to_char_ptr_vec_append (vecp, dirnames, DIRNAME_SEPARATOR); | |
48faced0 DE |
97 | } |
98 | ||
99 | /* Split DIRNAMES by DIRNAME_SEPARATOR delimiter and return a list of all the | |
100 | elements in their original order. For empty string ("") DIRNAMES return | |
101 | list of one empty string ("") element. | |
102 | ||
103 | You may modify the returned strings. | |
104 | Read free_char_ptr_vec for its cleanup. */ | |
105 | ||
106 | VEC (char_ptr) * | |
107 | dirnames_to_char_ptr_vec (const char *dirnames) | |
108 | { | |
109 | VEC (char_ptr) *retval = NULL; | |
110 | ||
111 | dirnames_to_char_ptr_vec_append (&retval, dirnames); | |
112 | ||
113 | return retval; | |
114 | } |