1 /* 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 #define LOG_NDEBUG 0 30 #define LOG_TAG "LocSvc_misc_utils" 31 #include <stdio.h> 32 #include <string.h> 33 #include <platform_lib_log_util.h> 34 #include <loc_misc_utils.h> 35 #include <ctype.h> 36 37 38 int loc_util_split_string(char *raw_string, char **split_strings_ptr, 39 int max_num_substrings, char delimiter) 40 { 41 int raw_string_index=0; 42 int num_split_strings=0; 43 unsigned char end_string=0; 44 int raw_string_length=0; 45 46 if(!raw_string || !split_strings_ptr) { 47 LOC_LOGE("%s:%d]: NULL parameters", __func__, __LINE__); 48 num_split_strings = -1; 49 goto err; 50 } 51 LOC_LOGD("%s:%d]: raw string: %s\n", __func__, __LINE__, raw_string); 52 raw_string_length = strlen(raw_string) + 1; 53 split_strings_ptr[num_split_strings] = &raw_string[raw_string_index]; 54 for(raw_string_index=0; raw_string_index < raw_string_length; raw_string_index++) { 55 if(raw_string[raw_string_index] == '\0') 56 end_string=1; 57 if((raw_string[raw_string_index] == delimiter) || end_string) { 58 raw_string[raw_string_index] = '\0'; 59 LOC_LOGD("%s:%d]: split string: %s\n", 60 __func__, __LINE__, split_strings_ptr[num_split_strings]); 61 num_split_strings++; 62 if(((raw_string_index + 1) < raw_string_length) && 63 (num_split_strings < max_num_substrings)) { 64 split_strings_ptr[num_split_strings] = &raw_string[raw_string_index+1]; 65 } 66 else { 67 break; 68 } 69 } 70 if(end_string) 71 break; 72 } 73 err: 74 LOC_LOGD("%s:%d]: num_split_strings: %d\n", __func__, __LINE__, num_split_strings); 75 return num_split_strings; 76 } 77 78 void loc_util_trim_space(char *org_string) 79 { 80 char *scan_ptr, *write_ptr; 81 char *first_nonspace = NULL, *last_nonspace = NULL; 82 83 if(org_string == NULL) { 84 LOC_LOGE("%s:%d]: NULL parameter", __func__, __LINE__); 85 goto err; 86 } 87 88 scan_ptr = write_ptr = org_string; 89 90 while (*scan_ptr) { 91 //Find the first non-space character 92 if ( !isspace(*scan_ptr) && first_nonspace == NULL) { 93 first_nonspace = scan_ptr; 94 } 95 //Once the first non-space character is found in the 96 //above check, keep shifting the characters to the left 97 //to replace the spaces 98 if (first_nonspace != NULL) { 99 *(write_ptr++) = *scan_ptr; 100 //Keep track of which was the last non-space character 101 //encountered 102 //last_nonspace will not be updated in the case where 103 //the string ends with spaces 104 if ( !isspace(*scan_ptr)) { 105 last_nonspace = write_ptr; 106 } 107 } 108 scan_ptr++; 109 } 110 //Add NULL terminator after the last non-space character 111 if (last_nonspace) { *last_nonspace = '\0'; } 112 err: 113 return; 114 } 115
