2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 #include "RegexUtils.h"
18 #include "StringUtils.h"
20 namespace WrtDeviceApis {
22 std::string addStartPositionMark(const std::string &value)
24 if (!String::startsWith(value, "^") && !String::startsWith(value, ".*")) {
30 std::string addEndPositionMark(const std::string &value)
32 if ((!String::endsWith(value, "$") || String::endsWith(value, "\\$")) &&
33 !String::endsWith(value, ".*"))
40 std::string addStartAndEndPositionMark(const std::string &value)
42 return addEndPositionMark(addStartPositionMark(value));
45 std::string preparePercent(const std::string& str)
47 std::string result = escape(str);
48 pcrecpp::RE("(([^\\\\])\\*|^()\\*)").GlobalReplace("\\2\\\\*", &result);
49 pcrecpp::RE("(([^\\\\])%|^()%)").GlobalReplace("\\2.*", &result);
53 std::string prepareAsterisk(const std::string& str)
55 std::string result = escape(str);
56 // Replaces single wildcard "*" with version more compliant with Perl
57 // regular exrepssions, i.e. ".*".
58 pcrecpp::RE("(([^\\\\])\\*|^()\\*)").GlobalReplace("\\2.*", &result);
62 std::string escape(const std::string& str)
64 std::string result = str;
65 // Escape standard regular expressions' metacharacters,
66 // i.e.: \, ., -, +, ?, (, ), [, ], ^, $, |
67 const char* metas = "(\\.|\\-|\\+|\\?|\\(|\\)|\\[|\\]|\\^|\\$|\\|"
68 "|(\\\\[^\\*\\%]|\\\\$))"; // \*, \% won't get
70 pcrecpp::RE(metas).GlobalReplace("\\\\\\1", &result);
74 } // WrtDeviceApisCommon