blob: 7d66d84264bb165f026b32efb25104d9d1759fc1 [file] [log] [blame]
Zvikomborero VIncent Zvikarambab73bb402016-07-20 17:19:53 -04001/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
2 *
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are
5 * met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above
9 * copyright notice, this list of conditions and the following
10 * disclaimer in the documentation and/or other materials provided
11 * with the distribution.
12 * * Neither the name of The Linux Foundation, nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29#ifndef _LOC_MISC_UTILS_H_
30#define _LOC_MISC_UTILS_H_
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36/*===========================================================================
37FUNCTION loc_split_string
38
39DESCRIPTION:
40 This function is used to split a delimiter separated string into
41 sub-strings. This function does not allocate new memory to store the split
42 strings. Instead, it places '\0' in places of delimiters and assings the
43 starting address of the substring within the raw string as the string address
44 The input raw_string no longer remains to be a collection of sub-strings
45 after this function is executed.
46 Please make a copy of the input string before calling this function if
47 necessary
48
49PARAMETERS:
50 char *raw_string: is the original string with delimiter separated substrings
51 char **split_strings_ptr: is the arraw of pointers which will hold the addresses
52 of individual substrings
53 int max_num_substrings: is the maximum number of substrings that are expected
54 by the caller. The array of pointers in the above parameter
55 is usually this long
56 char delimiter: is the delimiter that separates the substrings. Examples: ' ', ';'
57
58DEPENDENCIES
59 N/A
60
61RETURN VALUE
62 int Number of split strings
63
64SIDE EFFECTS
65 The input raw_string no longer remains a delimiter separated single string.
66
67EXAMPLE
68 delimiter = ' ' //space
69 raw_string = "hello new user" //delimiter is space ' '
70 addresses = 0123456789abcd
71 split_strings_ptr[0] = &raw_string[0]; //split_strings_ptr[0] contains "hello"
72 split_strings_ptr[1] = &raw_string[6]; //split_strings_ptr[1] contains "new"
73 split_strings_ptr[2] = &raw_string[a]; //split_strings_ptr[2] contains "user"
74
75===========================================================================*/
76int loc_util_split_string(char *raw_string, char **split_strings_ptr, int max_num_substrings,
77 char delimiter);
78
79/*===========================================================================
80FUNCTION trim_space
81
82DESCRIPTION
83 Removes leading and trailing spaces of the string
84
85DEPENDENCIES
86 N/A
87
88RETURN VALUE
89 None
90
91SIDE EFFECTS
92 N/A
93===========================================================================*/
94void loc_util_trim_space(char *org_string);
95#ifdef __cplusplus
96}
97#endif
98
99#endif //_LOC_MISC_UTILS_H_