Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Elliott Hughes | b635162 | 2015-12-04 22:00:26 -0800 | [diff] [blame] | 17 | #include "android-base/strings.h" |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 18 | |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 19 | #include <stdlib.h> |
Dan Albert | 852d2e7 | 2015-03-26 23:23:32 -0700 | [diff] [blame] | 20 | #include <string.h> |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 21 | |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 22 | #include <string> |
| 23 | #include <vector> |
| 24 | |
| 25 | namespace android { |
| 26 | namespace base { |
| 27 | |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 28 | #define CHECK_NE(a, b) \ |
| 29 | if ((a) == (b)) abort(); |
| 30 | |
| 31 | std::vector<std::string> Split(const std::string& s, |
| 32 | const std::string& delimiters) { |
| 33 | CHECK_NE(delimiters.size(), 0U); |
| 34 | |
Elliott Hughes | 9964efc | 2015-04-24 23:02:00 -0700 | [diff] [blame] | 35 | std::vector<std::string> result; |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 36 | |
| 37 | size_t base = 0; |
| 38 | size_t found; |
Elliott Hughes | b226479 | 2017-02-07 15:30:24 -0800 | [diff] [blame] | 39 | while (true) { |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 40 | found = s.find_first_of(delimiters, base); |
Elliott Hughes | 9964efc | 2015-04-24 23:02:00 -0700 | [diff] [blame] | 41 | result.push_back(s.substr(base, found - base)); |
Elliott Hughes | b226479 | 2017-02-07 15:30:24 -0800 | [diff] [blame] | 42 | if (found == s.npos) break; |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 43 | base = found + 1; |
Elliott Hughes | b226479 | 2017-02-07 15:30:24 -0800 | [diff] [blame] | 44 | } |
Dan Albert | 0d716d0 | 2015-03-19 13:24:26 -0700 | [diff] [blame] | 45 | |
Elliott Hughes | 9964efc | 2015-04-24 23:02:00 -0700 | [diff] [blame] | 46 | return result; |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 47 | } |
| 48 | |
| 49 | std::string Trim(const std::string& s) { |
| 50 | std::string result; |
| 51 | |
| 52 | if (s.size() == 0) { |
| 53 | return result; |
| 54 | } |
| 55 | |
| 56 | size_t start_index = 0; |
| 57 | size_t end_index = s.size() - 1; |
| 58 | |
| 59 | // Skip initial whitespace. |
| 60 | while (start_index < s.size()) { |
| 61 | if (!isspace(s[start_index])) { |
| 62 | break; |
| 63 | } |
| 64 | start_index++; |
| 65 | } |
| 66 | |
| 67 | // Skip terminating whitespace. |
| 68 | while (end_index >= start_index) { |
| 69 | if (!isspace(s[end_index])) { |
| 70 | break; |
| 71 | } |
| 72 | end_index--; |
| 73 | } |
| 74 | |
| 75 | // All spaces, no beef. |
| 76 | if (end_index < start_index) { |
| 77 | return ""; |
| 78 | } |
| 79 | // Start_index is the first non-space, end_index is the last one. |
| 80 | return s.substr(start_index, end_index - start_index + 1); |
| 81 | } |
| 82 | |
Dan Albert | 0d20cc9 | 2015-05-21 18:37:36 -0700 | [diff] [blame] | 83 | // These cases are probably the norm, so we mark them extern in the header to |
| 84 | // aid compile time and binary size. |
| 85 | template std::string Join(const std::vector<std::string>&, char); |
| 86 | template std::string Join(const std::vector<const char*>&, char); |
Casey Dahlin | f8557e7 | 2015-10-30 18:54:38 -0700 | [diff] [blame] | 87 | template std::string Join(const std::vector<std::string>&, const std::string&); |
| 88 | template std::string Join(const std::vector<const char*>&, const std::string&); |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 89 | |
| 90 | bool StartsWith(const std::string& s, const char* prefix) { |
Elliott Hughes | 8548427 | 2016-10-25 14:56:04 -0700 | [diff] [blame] | 91 | return strncmp(s.c_str(), prefix, strlen(prefix)) == 0; |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 92 | } |
| 93 | |
Elliott Hughes | 9955af2 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 94 | bool StartsWith(const std::string& s, const std::string& prefix) { |
| 95 | return strncmp(s.c_str(), prefix.c_str(), prefix.size()) == 0; |
| 96 | } |
| 97 | |
Elliott Hughes | 8548427 | 2016-10-25 14:56:04 -0700 | [diff] [blame] | 98 | bool StartsWithIgnoreCase(const std::string& s, const char* prefix) { |
| 99 | return strncasecmp(s.c_str(), prefix, strlen(prefix)) == 0; |
| 100 | } |
| 101 | |
Elliott Hughes | 9955af2 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 102 | bool StartsWithIgnoreCase(const std::string& s, const std::string& prefix) { |
| 103 | return strncasecmp(s.c_str(), prefix.c_str(), prefix.size()) == 0; |
| 104 | } |
| 105 | |
| 106 | static bool EndsWith(const std::string& s, const char* suffix, size_t suffix_length, |
| 107 | bool case_sensitive) { |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 108 | size_t string_length = s.size(); |
| 109 | if (suffix_length > string_length) { |
| 110 | return false; |
| 111 | } |
| 112 | size_t offset = string_length - suffix_length; |
Elliott Hughes | 8548427 | 2016-10-25 14:56:04 -0700 | [diff] [blame] | 113 | return (case_sensitive ? strncmp : strncasecmp)(s.c_str() + offset, suffix, suffix_length) == 0; |
| 114 | } |
| 115 | |
| 116 | bool EndsWith(const std::string& s, const char* suffix) { |
Elliott Hughes | 9955af2 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 117 | return EndsWith(s, suffix, strlen(suffix), true); |
| 118 | } |
| 119 | |
| 120 | bool EndsWith(const std::string& s, const std::string& suffix) { |
| 121 | return EndsWith(s, suffix.c_str(), suffix.size(), true); |
Elliott Hughes | 8548427 | 2016-10-25 14:56:04 -0700 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | bool EndsWithIgnoreCase(const std::string& s, const char* suffix) { |
Elliott Hughes | 9955af2 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 125 | return EndsWith(s, suffix, strlen(suffix), false); |
| 126 | } |
| 127 | |
| 128 | bool EndsWithIgnoreCase(const std::string& s, const std::string& suffix) { |
| 129 | return EndsWith(s, suffix.c_str(), suffix.size(), false); |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 130 | } |
| 131 | |
Elliott Hughes | 7872ff3 | 2017-01-13 18:51:32 -0800 | [diff] [blame] | 132 | bool EqualsIgnoreCase(const std::string& lhs, const std::string& rhs) { |
| 133 | return strcasecmp(lhs.c_str(), rhs.c_str()) == 0; |
| 134 | } |
| 135 | |
Dan Albert | 00716d7 | 2015-03-13 22:57:40 -0700 | [diff] [blame] | 136 | } // namespace base |
| 137 | } // namespace android |