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-rw-r--r--source/Interpreter/CommandInterpreter.cpp475
1 files changed, 256 insertions, 219 deletions
diff --git a/source/Interpreter/CommandInterpreter.cpp b/source/Interpreter/CommandInterpreter.cpp
index 6318b80a..1da541b 100644
--- a/source/Interpreter/CommandInterpreter.cpp
+++ b/source/Interpreter/CommandInterpreter.cpp
@@ -7,8 +7,6 @@
//
//===----------------------------------------------------------------------===//
-#include "lldb/lldb-python.h"
-
#include <string>
#include <vector>
#include <stdlib.h>
@@ -19,6 +17,7 @@
#include "../Commands/CommandObjectApropos.h"
#include "../Commands/CommandObjectArgs.h"
#include "../Commands/CommandObjectBreakpoint.h"
+#include "../Commands/CommandObjectBugreport.h"
#include "../Commands/CommandObjectDisassemble.h"
#include "../Commands/CommandObjectExpression.h"
#include "../Commands/CommandObjectFrame.h"
@@ -40,6 +39,7 @@
#include "../Commands/CommandObjectType.h"
#include "../Commands/CommandObjectVersion.h"
#include "../Commands/CommandObjectWatchpoint.h"
+#include "../Commands/CommandObjectLanguage.h"
#include "lldb/Core/Debugger.h"
@@ -60,6 +60,8 @@
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/Options.h"
+#include "lldb/Interpreter/OptionValueProperties.h"
+#include "lldb/Interpreter/Property.h"
#include "lldb/Interpreter/ScriptInterpreterNone.h"
#include "lldb/Interpreter/ScriptInterpreterPython.h"
@@ -77,6 +79,7 @@
using namespace lldb;
using namespace lldb_private;
+static const char *k_white_space = " \t\v";
static PropertyDefinition
g_properties[] =
@@ -107,7 +110,7 @@ CommandInterpreter::CommandInterpreter
ScriptLanguage script_language,
bool synchronous_execution
) :
- Broadcaster (&debugger, "lldb.command-interpreter"),
+ Broadcaster (&debugger, CommandInterpreter::GetStaticBroadcasterClass().AsCString()),
Properties(OptionValuePropertiesSP(new OptionValueProperties(ConstString("interpreter")))),
IOHandlerDelegate (IOHandlerDelegate::Completion::LLDBCommand),
m_debugger (debugger),
@@ -147,6 +150,24 @@ CommandInterpreter::GetPromptOnQuit () const
return m_collection_sp->GetPropertyAtIndexAsBoolean (nullptr, idx, g_properties[idx].default_uint_value != 0);
}
+void
+CommandInterpreter::SetPromptOnQuit (bool b)
+{
+ const uint32_t idx = ePropertyPromptOnQuit;
+ m_collection_sp->SetPropertyAtIndexAsBoolean (nullptr, idx, b);
+}
+
+void
+CommandInterpreter::ResolveCommand(const char *command_line, CommandReturnObject &result)
+{
+ std::string command = command_line;
+ if (ResolveCommandImpl(command, result) != nullptr) {
+ result.AppendMessageWithFormat("%s", command.c_str());
+ result.SetStatus(eReturnStatusSuccessFinishResult);
+ }
+}
+
+
bool
CommandInterpreter::GetStopCmdSourceOnError () const
{
@@ -401,6 +422,7 @@ CommandInterpreter::LoadCommandDictionary ()
m_command_dict["apropos"] = CommandObjectSP (new CommandObjectApropos (*this));
m_command_dict["breakpoint"]= CommandObjectSP (new CommandObjectMultiwordBreakpoint (*this));
+ m_command_dict["bugreport"] = CommandObjectSP (new CommandObjectMultiwordBugreport (*this));
m_command_dict["command"] = CommandObjectSP (new CommandObjectMultiwordCommands (*this));
m_command_dict["disassemble"] = CommandObjectSP (new CommandObjectDisassemble (*this));
m_command_dict["expression"]= CommandObjectSP (new CommandObjectExpression (*this));
@@ -422,6 +444,7 @@ CommandInterpreter::LoadCommandDictionary ()
m_command_dict["type"] = CommandObjectSP (new CommandObjectType (*this));
m_command_dict["version"] = CommandObjectSP (new CommandObjectVersion (*this));
m_command_dict["watchpoint"]= CommandObjectSP (new CommandObjectMultiwordWatchpoint (*this));
+ m_command_dict["language"] = CommandObjectSP (new CommandObjectLanguage(*this));
const char *break_regexes[][2] = {{"^(.*[^[:space:]])[[:space:]]*:[[:space:]]*([[:digit:]]+)[[:space:]]*$", "breakpoint set --file '%1' --line %2"},
{"^/([^/]+)/$", "breakpoint set --source-pattern-regexp '%1'"},
@@ -438,8 +461,14 @@ CommandInterpreter::LoadCommandDictionary ()
std::unique_ptr<CommandObjectRegexCommand>
break_regex_cmd_ap(new CommandObjectRegexCommand (*this,
"_regexp-break",
- "Set a breakpoint using a regular expression to specify the location, where <linenum> is in decimal and <address> is in hex.",
- "_regexp-break [<filename>:<linenum>]\n_regexp-break [<linenum>]\n_regexp-break [<address>]\n_regexp-break <...>",
+ "Set a breakpoint using a regular expression to specify the location, where <linenum> is in decimal and <address> is in hex.\n",
+ "\n_regexp-break <filename>:<linenum> # _regexp-break main.c:12 // Break on line 12 of main.c\n"
+ "_regexp-break <linenum> # _regexp-break 12 // Break on line 12 of current file\n"
+ "_regexp-break <address> # _regexp-break 0x1234000 // Break on address 0x1234000\n"
+ "_regexp-break <name> # _regexp-break main // Break in 'main' after the prologue\n"
+ "_regexp-break &<name> # _regexp-break &main // Break on the first instruction in 'main'\n"
+ "_regexp-break <module>`<name> # _regexp-break libc.so`malloc // Break in 'malloc' only in the 'libc.so' shared library\n"
+ "_regexp-break /<source-regex>/ # _regexp-break /break here/ // Break on all lines that match the regular expression 'break here' in the current file.\n",
2,
CommandCompletions::eSymbolCompletion |
CommandCompletions::eSourceFileCompletion,
@@ -1243,8 +1272,7 @@ CommandInterpreter::GetCommandObjectForCommand (std::string &command_string)
// eventually be invoked by the given command line.
CommandObject *cmd_obj = nullptr;
- std::string white_space (" \t\v");
- size_t start = command_string.find_first_not_of (white_space);
+ size_t start = command_string.find_first_not_of (k_white_space);
size_t end = 0;
bool done = false;
while (!done)
@@ -1252,7 +1280,7 @@ CommandInterpreter::GetCommandObjectForCommand (std::string &command_string)
if (start != std::string::npos)
{
// Get the next word from command_string.
- end = command_string.find_first_of (white_space, start);
+ end = command_string.find_first_of (k_white_space, start);
if (end == std::string::npos)
end = command_string.size();
std::string cmd_word = command_string.substr (start, end - start);
@@ -1267,7 +1295,7 @@ CommandInterpreter::GetCommandObjectForCommand (std::string &command_string)
CommandObject *sub_cmd_obj = cmd_obj->GetSubcommandObject (cmd_word.c_str());
if (sub_cmd_obj)
cmd_obj = sub_cmd_obj;
- else // cmd_word was not a valid sub-command word, so we are donee
+ else // cmd_word was not a valid sub-command word, so we are done
done = true;
}
else
@@ -1281,7 +1309,7 @@ CommandInterpreter::GetCommandObjectForCommand (std::string &command_string)
if (!cmd_obj || !cmd_obj->IsMultiwordObject() || end >= command_string.size())
done = true;
else
- start = command_string.find_first_not_of (white_space, end);
+ start = command_string.find_first_not_of (k_white_space, end);
}
else
// Unable to find any more words.
@@ -1296,7 +1324,6 @@ CommandInterpreter::GetCommandObjectForCommand (std::string &command_string)
return cmd_obj;
}
-static const char *k_white_space = " \t\v";
static const char *k_valid_command_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_";
static void
StripLeadingSpaces (std::string &s)
@@ -1412,7 +1439,7 @@ CommandInterpreter::BuildAliasResult (const char *alias_name,
CommandReturnObject &result)
{
CommandObject *alias_cmd_obj = nullptr;
- Args cmd_args (raw_input_string.c_str());
+ Args cmd_args (raw_input_string);
alias_cmd_obj = GetCommandObject (alias_name);
StreamString result_str;
@@ -1442,10 +1469,10 @@ CommandInterpreter::BuildAliasResult (const char *alias_name,
else
{
result_str.Printf (" %s", option.c_str());
- if (value_type != OptionParser::eOptionalArgument)
- result_str.Printf (" ");
- if (value.compare ("<OptionParser::eNoArgument>") != 0)
+ if (value_type != OptionParser::eNoArgument)
{
+ if (value_type != OptionParser::eOptionalArgument)
+ result_str.Printf (" ");
int index = GetOptionArgumentPosition (value.c_str());
if (index == 0)
result_str.Printf ("%s", value.c_str());
@@ -1456,7 +1483,7 @@ CommandInterpreter::BuildAliasResult (const char *alias_name,
("Not enough arguments provided; you need at least %d arguments to use this alias.\n",
index);
result.SetStatus (eReturnStatusFailed);
- return alias_cmd_obj;
+ return nullptr;
}
else
{
@@ -1481,7 +1508,7 @@ CommandInterpreter::PreprocessCommand (std::string &command)
{
// The command preprocessor needs to do things to the command
// line before any parsing of arguments or anything else is done.
- // The only current stuff that gets proprocessed is anyting enclosed
+ // The only current stuff that gets preprocessed is anything enclosed
// in backtick ('`') characters is evaluated as an expression and
// the result of the expression must be a scalar that can be substituted
// into the command. An example would be:
@@ -1493,7 +1520,7 @@ CommandInterpreter::PreprocessCommand (std::string &command)
{
if (start_backtick > 0 && command[start_backtick-1] == '\\')
{
- // The backtick was preceeded by a '\' character, remove the slash
+ // The backtick was preceded by a '\' character, remove the slash
// and don't treat the backtick as the start of an expression
command.erase(start_backtick-1, 1);
// No need to add one to start_backtick since we just deleted a char
@@ -1622,9 +1649,6 @@ CommandInterpreter::HandleCommand (const char *command_line,
{
- bool done = false;
- CommandObject *cmd_obj = nullptr;
- bool wants_raw_input = false;
std::string command_string (command_line);
std::string original_command_string (command_line);
@@ -1724,192 +1748,34 @@ CommandInterpreter::HandleCommand (const char *command_line,
result.SetStatus(eReturnStatusFailed);
return false;
}
- // Phase 1.
-
- // Before we do ANY kind of argument processing, etc. we need to figure out what the real/final command object
- // is for the specified command, and whether or not it wants raw input. This gets complicated by the fact that
- // the user could have specified an alias, and in translating the alias there may also be command options and/or
- // even data (including raw text strings) that need to be found and inserted into the command line as part of
- // the translation. So this first step is plain look-up & replacement, resulting in three things: 1). the command
- // object whose Execute method will actually be called; 2). a revised command string, with all substitutions &
- // replacements taken care of; 3). whether or not the Execute function wants raw input or not.
-
- StreamString revised_command_line;
- size_t actual_cmd_name_len = 0;
- std::string next_word;
- StringList matches;
- while (!done)
- {
- char quote_char = '\0';
- std::string suffix;
- ExtractCommand (command_string, next_word, suffix, quote_char);
- if (cmd_obj == nullptr)
- {
- std::string full_name;
- if (GetAliasFullName(next_word.c_str(), full_name))
- {
- std::string alias_result;
- cmd_obj = BuildAliasResult (full_name.c_str(), command_string, alias_result, result);
- revised_command_line.Printf ("%s", alias_result.c_str());
- if (cmd_obj)
- {
- wants_raw_input = cmd_obj->WantsRawCommandString ();
- actual_cmd_name_len = strlen (cmd_obj->GetCommandName());
- }
- }
- else
- {
- cmd_obj = GetCommandObject (next_word.c_str(), &matches);
- if (cmd_obj)
- {
- actual_cmd_name_len += next_word.length();
- revised_command_line.Printf ("%s", next_word.c_str());
- wants_raw_input = cmd_obj->WantsRawCommandString ();
- }
- else
- {
- revised_command_line.Printf ("%s", next_word.c_str());
- }
- }
- }
- else
- {
- if (cmd_obj->IsMultiwordObject ())
- {
- CommandObject *sub_cmd_obj = cmd_obj->GetSubcommandObject (next_word.c_str());
- if (sub_cmd_obj)
- {
- actual_cmd_name_len += next_word.length() + 1;
- revised_command_line.Printf (" %s", next_word.c_str());
- cmd_obj = sub_cmd_obj;
- wants_raw_input = cmd_obj->WantsRawCommandString ();
- }
- else
- {
- if (quote_char)
- revised_command_line.Printf (" %c%s%s%c", quote_char, next_word.c_str(), suffix.c_str(), quote_char);
- else
- revised_command_line.Printf (" %s%s", next_word.c_str(), suffix.c_str());
- done = true;
- }
- }
- else
- {
- if (quote_char)
- revised_command_line.Printf (" %c%s%s%c", quote_char, next_word.c_str(), suffix.c_str(), quote_char);
- else
- revised_command_line.Printf (" %s%s", next_word.c_str(), suffix.c_str());
- done = true;
- }
- }
-
- if (cmd_obj == nullptr)
- {
- const size_t num_matches = matches.GetSize();
- if (matches.GetSize() > 1) {
- StreamString error_msg;
- error_msg.Printf ("Ambiguous command '%s'. Possible matches:\n", next_word.c_str());
-
- for (uint32_t i = 0; i < num_matches; ++i) {
- error_msg.Printf ("\t%s\n", matches.GetStringAtIndex(i));
- }
- result.AppendRawError (error_msg.GetString().c_str());
- } else {
- // We didn't have only one match, otherwise we wouldn't get here.
- assert(num_matches == 0);
- result.AppendErrorWithFormat ("'%s' is not a valid command.\n", next_word.c_str());
- }
- result.SetStatus (eReturnStatusFailed);
- return false;
- }
- if (cmd_obj->IsMultiwordObject ())
- {
- if (!suffix.empty())
- {
-
- result.AppendErrorWithFormat ("command '%s' did not recognize '%s%s%s' as valid (subcommand might be invalid).\n",
- cmd_obj->GetCommandName(),
- next_word.empty() ? "" : next_word.c_str(),
- next_word.empty() ? " -- " : " ",
- suffix.c_str());
- result.SetStatus (eReturnStatusFailed);
- return false;
- }
- }
- else
- {
- // If we found a normal command, we are done
- done = true;
- if (!suffix.empty())
- {
- switch (suffix[0])
- {
- case '/':
- // GDB format suffixes
- {
- Options *command_options = cmd_obj->GetOptions();
- if (command_options && command_options->SupportsLongOption("gdb-format"))
- {
- std::string gdb_format_option ("--gdb-format=");
- gdb_format_option += (suffix.c_str() + 1);
+ // Phase 1.
- bool inserted = false;
- std::string &cmd = revised_command_line.GetString();
- size_t arg_terminator_idx = FindArgumentTerminator (cmd);
- if (arg_terminator_idx != std::string::npos)
- {
- // Insert the gdb format option before the "--" that terminates options
- gdb_format_option.append(1,' ');
- cmd.insert(arg_terminator_idx, gdb_format_option);
- inserted = true;
- }
+ // Before we do ANY kind of argument processing, we need to figure out what
+ // the real/final command object is for the specified command. This gets
+ // complicated by the fact that the user could have specified an alias, and,
+ // in translating the alias, there may also be command options and/or even
+ // data (including raw text strings) that need to be found and inserted into
+ // the command line as part of the translation. So this first step is plain
+ // look-up and replacement, resulting in:
+ // 1. the command object whose Execute method will actually be called
+ // 2. a revised command string, with all substitutions and replacements
+ // taken care of
+ // From 1 above, we can determine whether the Execute function wants raw
+ // input or not.
+
+ CommandObject *cmd_obj = ResolveCommandImpl(command_string, result);
+
+ // Although the user may have abbreviated the command, the command_string now
+ // has the command expanded to the full name. For example, if the input
+ // was "br s -n main", command_string is now "breakpoint set -n main".
- if (!inserted)
- revised_command_line.Printf (" %s", gdb_format_option.c_str());
-
- if (wants_raw_input && FindArgumentTerminator(cmd) == std::string::npos)
- revised_command_line.PutCString (" --");
- }
- else
- {
- result.AppendErrorWithFormat ("the '%s' command doesn't support the --gdb-format option\n",
- cmd_obj->GetCommandName());
- result.SetStatus (eReturnStatusFailed);
- return false;
- }
- }
- break;
-
- default:
- result.AppendErrorWithFormat ("unknown command shorthand suffix: '%s'\n",
- suffix.c_str());
- result.SetStatus (eReturnStatusFailed);
- return false;
-
- }
- }
- }
- if (command_string.length() == 0)
- done = true;
-
- }
-
- if (!command_string.empty())
- revised_command_line.Printf (" %s", command_string.c_str());
-
- // End of Phase 1.
- // At this point cmd_obj should contain the CommandObject whose Execute method will be called, if the command
- // specified was valid; revised_command_line contains the complete command line (including command name(s)),
- // fully translated with all substitutions & translations taken care of (still in raw text format); and
- // wants_raw_input specifies whether the Execute method expects raw input or not.
-
-
if (log)
{
- log->Printf ("HandleCommand, cmd_obj : '%s'", cmd_obj ? cmd_obj->GetCommandName() : "<not found>");
- log->Printf ("HandleCommand, revised_command_line: '%s'", revised_command_line.GetData());
- log->Printf ("HandleCommand, wants_raw_input:'%s'", wants_raw_input ? "True" : "False");
+ log->Printf("HandleCommand, cmd_obj : '%s'", cmd_obj ? cmd_obj->GetCommandName() : "<not found>");
+ log->Printf("HandleCommand, (revised) command_string: '%s'", command_string.c_str());
+ const bool wants_raw_input = (cmd_obj != NULL) ? cmd_obj->WantsRawCommandString() : false;
+ log->Printf("HandleCommand, wants_raw_input:'%s'", wants_raw_input ? "True" : "False");
}
// Phase 2.
@@ -1920,7 +1786,7 @@ CommandInterpreter::HandleCommand (const char *command_line,
{
if (add_to_history)
{
- Args command_args (revised_command_line.GetData());
+ Args command_args (command_string);
const char *repeat_command = cmd_obj->GetRepeatCommand(command_args, 0);
if (repeat_command != nullptr)
m_repeat_command.assign(repeat_command);
@@ -1930,18 +1796,13 @@ CommandInterpreter::HandleCommand (const char *command_line,
m_command_history.AppendString (original_command_string);
}
- command_string = revised_command_line.GetData();
- std::string command_name (cmd_obj->GetCommandName());
std::string remainder;
+ const std::size_t actual_cmd_name_len = strlen (cmd_obj->GetCommandName());
if (actual_cmd_name_len < command_string.length())
- remainder = command_string.substr (actual_cmd_name_len); // Note: 'actual_cmd_name_len' may be considerably shorter
- // than cmd_obj->GetCommandName(), because name completion
- // allows users to enter short versions of the names,
- // e.g. 'br s' for 'breakpoint set'.
+ remainder = command_string.substr (actual_cmd_name_len);
// Remove any initial spaces
- std::string white_space (" \t\v");
- size_t pos = remainder.find_first_not_of (white_space);
+ size_t pos = remainder.find_first_not_of (k_white_space);
if (pos != 0 && pos != std::string::npos)
remainder.erase(0, pos);
@@ -1953,7 +1814,7 @@ CommandInterpreter::HandleCommand (const char *command_line,
else
{
// We didn't find the first command object, so complete the first argument.
- Args command_args (revised_command_line.GetData());
+ Args command_args (command_string);
StringList matches;
int num_matches;
int cursor_index = 0;
@@ -2082,8 +1943,8 @@ CommandInterpreter::HandleCompletion (const char *current_line,
// We parse the argument up to the cursor, so the last argument in parsed_line is
// the one containing the cursor, and the cursor is after the last character.
- Args parsed_line(current_line, last_char - current_line);
- Args partial_parsed_line(current_line, cursor - current_line);
+ Args parsed_line(llvm::StringRef(current_line, last_char - current_line));
+ Args partial_parsed_line(llvm::StringRef(current_line, cursor - current_line));
// Don't complete comments, and if the line we are completing is just the history repeat character,
// substitute the appropriate history line.
@@ -2386,7 +2247,7 @@ CommandInterpreter::BuildAliasCommandArgs (CommandObject *alias_cmd_obj,
}
cmd_args.Clear();
- cmd_args.SetArguments (new_args.GetArgumentCount(), (const char **) new_args.GetArgumentVector());
+ cmd_args.SetArguments (new_args.GetArgumentCount(), new_args.GetConstArgumentVector());
}
else
{
@@ -2397,7 +2258,7 @@ CommandInterpreter::BuildAliasCommandArgs (CommandObject *alias_cmd_obj,
if (wants_raw_input)
{
cmd_args.Clear();
- cmd_args.SetArguments (new_args.GetArgumentCount(), (const char **) new_args.GetArgumentVector());
+ cmd_args.SetArguments (new_args.GetArgumentCount(), new_args.GetConstArgumentVector());
}
return;
}
@@ -2413,7 +2274,7 @@ CommandInterpreter::GetOptionArgumentPosition (const char *in_string)
int position = 0; // Any string that isn't an argument position, i.e. '%' followed by an integer, gets a position
// of zero.
- char *cptr = (char *) in_string;
+ const char *cptr = in_string;
// Does it start with '%'
if (cptr[0] == '%')
@@ -3355,7 +3216,7 @@ CommandInterpreter::RunCommandInterpreter(bool auto_handle_events,
bool spawn_thread,
CommandInterpreterRunOptions &options)
{
- // Always re-create the command intepreter when we run it in case
+ // Always re-create the command interpreter when we run it in case
// any file handles have changed.
bool force_create = true;
m_debugger.PushIOHandler(GetIOHandler(force_create, &options));
@@ -3370,7 +3231,7 @@ CommandInterpreter::RunCommandInterpreter(bool auto_handle_events,
}
else
{
- m_debugger.ExecuteIOHanders();
+ m_debugger.ExecuteIOHandlers();
if (auto_handle_events)
m_debugger.StopEventHandlerThread();
@@ -3378,3 +3239,179 @@ CommandInterpreter::RunCommandInterpreter(bool auto_handle_events,
}
+CommandObject *
+CommandInterpreter::ResolveCommandImpl(std::string &command_line, CommandReturnObject &result)
+{
+ std::string scratch_command(command_line); // working copy so we don't modify command_line unless we succeed
+ CommandObject *cmd_obj = nullptr;
+ StreamString revised_command_line;
+ bool wants_raw_input = false;
+ size_t actual_cmd_name_len = 0;
+ std::string next_word;
+ StringList matches;
+ bool done = false;
+ while (!done)
+ {
+ char quote_char = '\0';
+ std::string suffix;
+ ExtractCommand(scratch_command, next_word, suffix, quote_char);
+ if (cmd_obj == nullptr)
+ {
+ std::string full_name;
+ if (GetAliasFullName(next_word.c_str(), full_name))
+ {
+ std::string alias_result;
+ cmd_obj = BuildAliasResult(full_name.c_str(), scratch_command, alias_result, result);
+ revised_command_line.Printf("%s", alias_result.c_str());
+ if (cmd_obj)
+ {
+ wants_raw_input = cmd_obj->WantsRawCommandString();
+ actual_cmd_name_len = strlen(cmd_obj->GetCommandName());
+ }
+ }
+ else
+ {
+ cmd_obj = GetCommandObject(next_word.c_str(), &matches);
+ if (cmd_obj)
+ {
+ actual_cmd_name_len += strlen(cmd_obj->GetCommandName());
+ revised_command_line.Printf("%s", cmd_obj->GetCommandName());
+ wants_raw_input = cmd_obj->WantsRawCommandString();
+ }
+ else
+ {
+ revised_command_line.Printf ("%s", next_word.c_str());
+ }
+ }
+ }
+ else
+ {
+ if (cmd_obj->IsMultiwordObject ())
+ {
+ CommandObject *sub_cmd_obj = cmd_obj->GetSubcommandObject(next_word.c_str());
+ if (sub_cmd_obj)
+ {
+ // The subcommand's name includes the parent command's name,
+ // so restart rather than append to the revised_command_line.
+ actual_cmd_name_len = strlen(sub_cmd_obj->GetCommandName()) + 1;
+ revised_command_line.Clear();
+ revised_command_line.Printf("%s", sub_cmd_obj->GetCommandName());
+ cmd_obj = sub_cmd_obj;
+ wants_raw_input = cmd_obj->WantsRawCommandString();
+ }
+ else
+ {
+ if (quote_char)
+ revised_command_line.Printf(" %c%s%s%c", quote_char, next_word.c_str(), suffix.c_str(), quote_char);
+ else
+ revised_command_line.Printf(" %s%s", next_word.c_str(), suffix.c_str());
+ done = true;
+ }
+ }
+ else
+ {
+ if (quote_char)
+ revised_command_line.Printf(" %c%s%s%c", quote_char, next_word.c_str(), suffix.c_str(), quote_char);
+ else
+ revised_command_line.Printf(" %s%s", next_word.c_str(), suffix.c_str());
+ done = true;
+ }
+ }
+
+ if (cmd_obj == nullptr)
+ {
+ const size_t num_matches = matches.GetSize();
+ if (matches.GetSize() > 1) {
+ StreamString error_msg;
+ error_msg.Printf("Ambiguous command '%s'. Possible matches:\n", next_word.c_str());
+
+ for (uint32_t i = 0; i < num_matches; ++i) {
+ error_msg.Printf("\t%s\n", matches.GetStringAtIndex(i));
+ }
+ result.AppendRawError(error_msg.GetString().c_str());
+ } else {
+ // We didn't have only one match, otherwise we wouldn't get here.
+ assert(num_matches == 0);
+ result.AppendErrorWithFormat("'%s' is not a valid command.\n", next_word.c_str());
+ }
+ result.SetStatus(eReturnStatusFailed);
+ return nullptr;
+ }
+
+ if (cmd_obj->IsMultiwordObject())
+ {
+ if (!suffix.empty())
+ {
+ result.AppendErrorWithFormat("command '%s' did not recognize '%s%s%s' as valid (subcommand might be invalid).\n",
+ cmd_obj->GetCommandName(),
+ next_word.empty() ? "" : next_word.c_str(),
+ next_word.empty() ? " -- " : " ",
+ suffix.c_str());
+ result.SetStatus(eReturnStatusFailed);
+ return nullptr;
+ }
+ }
+ else
+ {
+ // If we found a normal command, we are done
+ done = true;
+ if (!suffix.empty())
+ {
+ switch (suffix[0])
+ {
+ case '/':
+ // GDB format suffixes
+ {
+ Options *command_options = cmd_obj->GetOptions();
+ if (command_options && command_options->SupportsLongOption("gdb-format"))
+ {
+ std::string gdb_format_option("--gdb-format=");
+ gdb_format_option += (suffix.c_str() + 1);
+
+ bool inserted = false;
+ std::string &cmd = revised_command_line.GetString();
+ size_t arg_terminator_idx = FindArgumentTerminator(cmd);
+ if (arg_terminator_idx != std::string::npos)
+ {
+ // Insert the gdb format option before the "--" that terminates options
+ gdb_format_option.append(1,' ');
+ cmd.insert(arg_terminator_idx, gdb_format_option);
+ inserted = true;
+ }
+
+ if (!inserted)
+ revised_command_line.Printf(" %s", gdb_format_option.c_str());
+
+ if (wants_raw_input && FindArgumentTerminator(cmd) == std::string::npos)
+ revised_command_line.PutCString(" --");
+ }
+ else
+ {
+ result.AppendErrorWithFormat("the '%s' command doesn't support the --gdb-format option\n",
+ cmd_obj->GetCommandName());
+ result.SetStatus(eReturnStatusFailed);
+ return nullptr;
+ }
+ }
+ break;
+
+ default:
+ result.AppendErrorWithFormat("unknown command shorthand suffix: '%s'\n",
+ suffix.c_str());
+ result.SetStatus(eReturnStatusFailed);
+ return nullptr;
+ }
+ }
+ }
+ if (scratch_command.empty())
+ done = true;
+ }
+
+ if (!scratch_command.empty())
+ revised_command_line.Printf(" %s", scratch_command.c_str());
+
+ if (cmd_obj != NULL)
+ command_line = revised_command_line.GetData();
+
+ return cmd_obj;
+}
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