1 //===-- RegularExpression.cpp ---------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "lldb/Utility/RegularExpression.h"
10 
11 #include <string>
12 
13 using namespace lldb_private;
14 
15 RegularExpression::RegularExpression(llvm::StringRef str)
16     : m_regex_text(std::string(str)),
17       // m_regex does not reference str anymore after it is constructed.
18       m_regex(llvm::Regex(str)) {}
19 
20 RegularExpression::RegularExpression(const RegularExpression &rhs)
21     : RegularExpression(rhs.GetText()) {}
22 
23 bool RegularExpression::Execute(
24     llvm::StringRef str,
25     llvm::SmallVectorImpl<llvm::StringRef> *matches) const {
26   if (!IsValid())
27     return false;
28   return m_regex.match(str, matches);
29 }
30 
31 bool RegularExpression::IsValid() const { return m_regex.isValid(); }
32 
33 llvm::StringRef RegularExpression::GetText() const { return m_regex_text; }
34 
35 llvm::Error RegularExpression::GetError() const {
36   std::string error;
37   if (!m_regex.isValid(error))
38     return llvm::make_error<llvm::StringError>(error,
39                                                llvm::inconvertibleErrorCode());
40   return llvm::Error::success();
41 }
42