CommandObjectRegexCommand.h

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//===-- CommandObjectRegexCommand.h -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_INTERPRETER_COMMANDOBJECTREGEXCOMMAND_H
#define LLDB_INTERPRETER_COMMANDOBJECTREGEXCOMMAND_H
 
#include <list>
 
#include "lldb/Interpreter/CommandObject.h"
#include "lldb/Utility/CompletionRequest.h"
#include "lldb/Utility/RegularExpression.h"
 
namespace lldb_private {
 
// CommandObjectRegexCommand
 
class CommandObjectRegexCommand : public CommandObjectRaw {
public:
  CommandObjectRegexCommand(CommandInterpreter &interpreter,
                            llvm::StringRef name, llvm::StringRef help,
                            llvm::StringRef syntax,
                            uint32_t completion_type_mask, bool is_removable);
 
  ~CommandObjectRegexCommand() override;
 
  bool IsRemovable() const override { return m_is_removable; }
 
  bool AddRegexCommand(llvm::StringRef re_cstr, llvm::StringRef command_cstr);
 
  bool HasRegexEntries() const { return !m_entries.empty(); }
 
  void HandleCompletion(CompletionRequest &request) override;
 
protected:
  void DoExecute(llvm::StringRef command, CommandReturnObject &result) override;
 
  /// Substitute variables of the format %\d+ in the input string.
  static llvm::Expected<std::string> SubstituteVariables(
      llvm::StringRef input,
      const llvm::SmallVectorImpl<llvm::StringRef> &replacements);
 
  struct Entry {
    RegularExpression regex;
    std::string command;
  };
 
  typedef std::list<Entry> EntryCollection;
  const uint32_t m_completion_type_mask;
  EntryCollection m_entries;
  bool m_is_removable;
 
private:
  CommandObjectRegexCommand(const CommandObjectRegexCommand &) = delete;
  const CommandObjectRegexCommand &
  operator=(const CommandObjectRegexCommand &) = delete;
};
 
} // namespace lldb_private
 
#endif // LLDB_INTERPRETER_COMMANDOBJECTREGEXCOMMAND_H