3af3f1e8e2
Originally I wanted to remove the RegularExpression class in Utility and replace it with llvm::Regex. However, during that transition I noticed that there are several places where need the regular expression string. So instead I propose to keep the RegularExpression class and make it a thin wrapper around llvm::Regex. This patch also removes the workaround for empty regular expressions. The result is that we are now (more or less) POSIX conformant. Differential revision: https://reviews.llvm.org/D66174 llvm-svn: 369153
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
//===-- RegularExpression.cpp -----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/RegularExpression.h"
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#include <string>
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using namespace lldb_private;
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RegularExpression::RegularExpression(llvm::StringRef str) { Compile(str); }
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RegularExpression::RegularExpression(const RegularExpression &rhs)
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: RegularExpression() {
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Compile(rhs.GetText());
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}
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bool RegularExpression::Compile(llvm::StringRef str) {
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m_regex_text = str;
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m_regex = llvm::Regex(str);
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return IsValid();
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}
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bool RegularExpression::Execute(
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llvm::StringRef str,
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llvm::SmallVectorImpl<llvm::StringRef> *matches) const {
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return m_regex.match(str, matches);
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}
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bool RegularExpression::IsValid() const {
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std::string discarded;
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return m_regex.isValid(discarded);
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}
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llvm::StringRef RegularExpression::GetText() const { return m_regex_text; }
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llvm::Error RegularExpression::GetError() const {
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std::string error;
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if (!m_regex.isValid(error))
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return llvm::make_error<llvm::StringError>(llvm::inconvertibleErrorCode(),
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error);
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return llvm::Error::success();
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}
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