diff options
Diffstat (limited to 'source/Interpreter/CommandObjectRegexCommand.cpp')
| -rw-r--r-- | source/Interpreter/CommandObjectRegexCommand.cpp | 191 |
1 files changed, 81 insertions, 110 deletions
diff --git a/source/Interpreter/CommandObjectRegexCommand.cpp b/source/Interpreter/CommandObjectRegexCommand.cpp index 1c3c3cdd5fdc..79d3bb1b5bee 100644 --- a/source/Interpreter/CommandObjectRegexCommand.cpp +++ b/source/Interpreter/CommandObjectRegexCommand.cpp @@ -22,129 +22,100 @@ using namespace lldb_private; //---------------------------------------------------------------------- // CommandObjectRegexCommand constructor //---------------------------------------------------------------------- -CommandObjectRegexCommand::CommandObjectRegexCommand -( - CommandInterpreter &interpreter, - const char *name, - const char *help, - const char *syntax, - uint32_t max_matches, - uint32_t completion_type_mask, - bool is_removable -) : - CommandObjectRaw (interpreter, name, help, syntax), - m_max_matches (max_matches), - m_completion_type_mask (completion_type_mask), - m_entries (), - m_is_removable (is_removable) -{ -} +CommandObjectRegexCommand::CommandObjectRegexCommand( + CommandInterpreter &interpreter, llvm::StringRef name, llvm::StringRef help, + llvm::StringRef syntax, uint32_t max_matches, uint32_t completion_type_mask, + bool is_removable) + : CommandObjectRaw(interpreter, name, help, syntax), + m_max_matches(max_matches), m_completion_type_mask(completion_type_mask), + m_entries(), m_is_removable(is_removable) {} //---------------------------------------------------------------------- // Destructor //---------------------------------------------------------------------- -CommandObjectRegexCommand::~CommandObjectRegexCommand() -{ -} - +CommandObjectRegexCommand::~CommandObjectRegexCommand() {} -bool -CommandObjectRegexCommand::DoExecute -( - const char *command, - CommandReturnObject &result -) -{ - if (command) - { - EntryCollection::const_iterator pos, end = m_entries.end(); - for (pos = m_entries.begin(); pos != end; ++pos) - { - RegularExpression::Match regex_match(m_max_matches); +bool CommandObjectRegexCommand::DoExecute(const char *command, + CommandReturnObject &result) { + if (command) { + EntryCollection::const_iterator pos, end = m_entries.end(); + for (pos = m_entries.begin(); pos != end; ++pos) { + RegularExpression::Match regex_match(m_max_matches); - if (pos->regex.Execute (command, ®ex_match)) - { - std::string new_command(pos->command); - std::string match_str; - char percent_var[8]; - size_t idx, percent_var_idx; - for (uint32_t match_idx=1; match_idx <= m_max_matches; ++match_idx) - { - if (regex_match.GetMatchAtIndex (command, match_idx, match_str)) - { - const int percent_var_len = ::snprintf (percent_var, sizeof(percent_var), "%%%u", match_idx); - for (idx = 0; (percent_var_idx = new_command.find(percent_var, idx)) != std::string::npos; ) - { - new_command.erase(percent_var_idx, percent_var_len); - new_command.insert(percent_var_idx, match_str); - idx += percent_var_idx + match_str.size(); - } - } - } - // Interpret the new command and return this as the result! - if (m_interpreter.GetExpandRegexAliases()) - result.GetOutputStream().Printf("%s\n", new_command.c_str()); - // Pass in true for "no context switching". The command that called us should have set up the context - // appropriately, we shouldn't have to redo that. - return m_interpreter.HandleCommand(new_command.c_str(), eLazyBoolCalculate, result, nullptr, true, true); + if (pos->regex.Execute(command, ®ex_match)) { + std::string new_command(pos->command); + std::string match_str; + char percent_var[8]; + size_t idx, percent_var_idx; + for (uint32_t match_idx = 1; match_idx <= m_max_matches; ++match_idx) { + if (regex_match.GetMatchAtIndex(command, match_idx, match_str)) { + const int percent_var_len = + ::snprintf(percent_var, sizeof(percent_var), "%%%u", match_idx); + for (idx = 0; (percent_var_idx = new_command.find( + percent_var, idx)) != std::string::npos;) { + new_command.erase(percent_var_idx, percent_var_len); + new_command.insert(percent_var_idx, match_str); + idx += percent_var_idx + match_str.size(); } + } } - result.SetStatus(eReturnStatusFailed); - if (GetSyntax() != nullptr) - result.AppendError (GetSyntax()); - else - result.AppendErrorWithFormat ("Command contents '%s' failed to match any regular expression in the '%s' regex command.\n", - command, - m_cmd_name.c_str()); - return false; + // Interpret the new command and return this as the result! + if (m_interpreter.GetExpandRegexAliases()) + result.GetOutputStream().Printf("%s\n", new_command.c_str()); + // Pass in true for "no context switching". The command that called us + // should have set up the context + // appropriately, we shouldn't have to redo that. + return m_interpreter.HandleCommand(new_command.c_str(), + eLazyBoolCalculate, result, nullptr, + true, true); + } } - result.AppendError("empty command passed to regular expression command"); result.SetStatus(eReturnStatusFailed); + if (!GetSyntax().empty()) + result.AppendError(GetSyntax()); + else + result.AppendErrorWithFormat("Command contents '%s' failed to match any " + "regular expression in the '%s' regex " + "command.\n", + command, m_cmd_name.c_str()); return false; + } + result.AppendError("empty command passed to regular expression command"); + result.SetStatus(eReturnStatusFailed); + return false; } - -bool -CommandObjectRegexCommand::AddRegexCommand (const char *re_cstr, const char *command_cstr) -{ - m_entries.resize(m_entries.size() + 1); - // Only add the regular expression if it compiles - if (m_entries.back().regex.Compile (re_cstr)) - { - m_entries.back().command.assign (command_cstr); - return true; - } - // The regex didn't compile... - m_entries.pop_back(); - return false; +bool CommandObjectRegexCommand::AddRegexCommand(const char *re_cstr, + const char *command_cstr) { + m_entries.resize(m_entries.size() + 1); + // Only add the regular expression if it compiles + if (m_entries.back().regex.Compile( + llvm::StringRef::withNullAsEmpty(re_cstr))) { + m_entries.back().command.assign(command_cstr); + return true; + } + // The regex didn't compile... + m_entries.pop_back(); + return false; } -int -CommandObjectRegexCommand::HandleCompletion (Args &input, - int &cursor_index, - int &cursor_char_position, - int match_start_point, - int max_return_elements, - bool &word_complete, - StringList &matches) -{ - if (m_completion_type_mask) - { - std::string completion_str (input.GetArgumentAtIndex (cursor_index), cursor_char_position); - CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, - m_completion_type_mask, - completion_str.c_str(), - match_start_point, - max_return_elements, - nullptr, - word_complete, - matches); - return matches.GetSize(); - } - else - { - matches.Clear(); - word_complete = false; - } - return 0; +int CommandObjectRegexCommand::HandleCompletion(Args &input, int &cursor_index, + int &cursor_char_position, + int match_start_point, + int max_return_elements, + bool &word_complete, + StringList &matches) { + if (m_completion_type_mask) { + std::string completion_str(input.GetArgumentAtIndex(cursor_index), + cursor_char_position); + CommandCompletions::InvokeCommonCompletionCallbacks( + GetCommandInterpreter(), m_completion_type_mask, completion_str.c_str(), + match_start_point, max_return_elements, nullptr, word_complete, + matches); + return matches.GetSize(); + } else { + matches.Clear(); + word_complete = false; + } + return 0; } |