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ceff6644bb
This patch removes the comments grouping header includes. They were added after running IWYU over the LLDB codebase. However they add little value, are often outdates and burdensome to maintain. llvm-svn: 346626
102 lines
4.1 KiB
C++
102 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/Interpreter/CommandObjectRegexCommand.h"
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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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CommandInterpreter &interpreter, llvm::StringRef name, llvm::StringRef help,
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llvm::StringRef syntax, uint32_t max_matches, uint32_t completion_type_mask,
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bool is_removable)
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: CommandObjectRaw(interpreter, name, help, syntax),
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m_max_matches(max_matches), m_completion_type_mask(completion_type_mask),
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m_entries(), m_is_removable(is_removable) {}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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CommandObjectRegexCommand::~CommandObjectRegexCommand() {}
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bool CommandObjectRegexCommand::DoExecute(llvm::StringRef command,
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CommandReturnObject &result) {
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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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RegularExpression::Match regex_match(m_max_matches);
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if (pos->regex.Execute(command, ®ex_match)) {
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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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if (regex_match.GetMatchAtIndex(command, match_idx, match_str)) {
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const int percent_var_len =
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::snprintf(percent_var, sizeof(percent_var), "%%%u", match_idx);
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for (idx = 0; (percent_var_idx = new_command.find(
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percent_var, idx)) != std::string::npos;) {
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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
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// should have set up the context appropriately, we shouldn't have to
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// redo that.
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return m_interpreter.HandleCommand(
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new_command.c_str(), eLazyBoolCalculate, result, nullptr, true, true);
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}
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}
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result.SetStatus(eReturnStatusFailed);
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if (!GetSyntax().empty())
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result.AppendError(GetSyntax());
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else
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result.GetOutputStream() << "Command contents '" << command
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<< "' failed to match any "
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"regular expression in the '"
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<< m_cmd_name << "' regex ";
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return false;
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}
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bool CommandObjectRegexCommand::AddRegexCommand(const char *re_cstr,
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const char *command_cstr) {
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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(
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llvm::StringRef::withNullAsEmpty(re_cstr))) {
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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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int CommandObjectRegexCommand::HandleCompletion(CompletionRequest &request) {
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if (m_completion_type_mask) {
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CommandCompletions::InvokeCommonCompletionCallbacks(
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GetCommandInterpreter(), m_completion_type_mask, request, nullptr);
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return request.GetNumberOfMatches();
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} else {
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request.SetWordComplete(false);
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}
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return 0;
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}
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