31938cad9c
resolved command, which it should not do. It should adopt whatever context the regular expression command was called with. This was causing regular expression commands run inside breakpoint commands to adopt the currently selected context, not the one coming from the breakpoint that we hit. <rdar://problem/13411771> llvm-svn: 177195
117 lines
4.1 KiB
C++
117 lines
4.1 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/lldb-python.h"
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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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CommandObjectRaw (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::DoExecute
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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_interpreter.GetExpandRegexAliases())
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result.GetOutputStream().Printf("%s\n", new_command.c_str());
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// Pass in true for "no context switching". The command that called us should have set up the context
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// appropriately, we shouldn't have to redo that.
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return m_interpreter.HandleCommand(new_command.c_str(), eLazyBoolCalculate, result, NULL, true, true);
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}
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}
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result.SetStatus(eReturnStatusFailed);
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if (GetSyntax() != NULL)
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result.AppendError (GetSyntax());
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else
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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 expression 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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