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a701509229
accessed by the objects that own the settings. The previous approach wasn't very usable and made for a lot of unnecessary code just to access variables that were already owned by the objects. While I fixed those things, I saw that CommandObject objects should really have a reference to their command interpreter so they can access the terminal with if they want to output usaage. Fixed up all CommandObjects to take an interpreter and cleaned up the API to not need the interpreter to be passed in. Fixed the disassemble command to output the usage if no options are passed down and arguments are passed (all disassebmle variants take options, there are no "args only"). llvm-svn: 114252
121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
//===-- CommandObjectRegexCommand.cpp ---------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Interpreter/CommandObjectRegexCommand.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// CommandObjectRegexCommand constructor
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//----------------------------------------------------------------------
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CommandObjectRegexCommand::CommandObjectRegexCommand
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(
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CommandInterpreter &interpreter,
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const char *name,
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const char *help,
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const char *syntax,
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uint32_t max_matches
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) :
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CommandObject (interpreter, name, help, syntax),
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m_max_matches (max_matches),
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m_entries ()
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{
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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CommandObjectRegexCommand::~CommandObjectRegexCommand()
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{
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}
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bool
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CommandObjectRegexCommand::Execute
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(
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Args& command,
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CommandReturnObject &result
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)
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{
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return false;
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}
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bool
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CommandObjectRegexCommand::ExecuteRawCommandString
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(
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const char *command,
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CommandReturnObject &result
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)
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{
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if (command)
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{
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EntryCollection::const_iterator pos, end = m_entries.end();
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for (pos = m_entries.begin(); pos != end; ++pos)
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{
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if (pos->regex.Execute (command, m_max_matches))
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{
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std::string new_command(pos->command);
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std::string match_str;
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char percent_var[8];
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size_t idx, percent_var_idx;
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for (uint32_t match_idx=1; match_idx <= m_max_matches; ++match_idx)
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{
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if (pos->regex.GetMatchAtIndex (command, match_idx, match_str))
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{
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const int percent_var_len = ::snprintf (percent_var, sizeof(percent_var), "%%%u", match_idx);
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for (idx = 0; (percent_var_idx = new_command.find(percent_var, idx)) != std::string::npos; )
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{
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new_command.erase(percent_var_idx, percent_var_len);
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new_command.insert(percent_var_idx, match_str);
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idx += percent_var_idx + match_str.size();
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}
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}
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}
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// Interpret the new command and return this as the result!
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// if (m_options.verbose)
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// result.GetOutputStream().Printf("%s\n", new_command.c_str());
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return m_interpreter.HandleCommand(new_command.c_str(), true, result);
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}
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}
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result.SetStatus(eReturnStatusFailed);
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result.AppendErrorWithFormat("Command contents '%s' failed to match any regular expression in the '%s' regex command.\n",
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command,
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m_cmd_name.c_str());
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return false;
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}
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result.AppendError("empty command passed to regular exression command");
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result.SetStatus(eReturnStatusFailed);
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return false;
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}
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bool
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CommandObjectRegexCommand::AddRegexCommand (const char *re_cstr, const char *command_cstr)
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{
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m_entries.resize(m_entries.size() + 1);
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// Only add the regular expression if it compiles
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if (m_entries.back().regex.Compile (re_cstr, REG_EXTENDED))
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{
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m_entries.back().command.assign (command_cstr);
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return true;
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}
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// The regex didn't compile...
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m_entries.pop_back();
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return false;
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}
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