forked from OSchip/llvm-project
1447 lines
45 KiB
C++
1447 lines
45 KiB
C++
//===-- Args.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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// C Includes
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#include <getopt.h>
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#include <cstdlib>
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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/Args.h"
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#include "lldb/Core/FormatManager.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Interpreter/Options.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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// Args constructor
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//----------------------------------------------------------------------
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Args::Args (const char *command) :
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m_args(),
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m_argv(),
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m_args_quote_char()
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{
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if (command)
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SetCommandString (command);
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}
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Args::Args (const char *command, size_t len) :
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m_args(),
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m_argv(),
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m_args_quote_char()
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{
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if (command && len)
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SetCommandString (command, len);
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}
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//----------------------------------------------------------------------
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// We have to be very careful on the copy constructor of this class
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// to make sure we copy all of the string values, but we can't copy the
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// rhs.m_argv into m_argv since it will point to the "const char *" c
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// strings in rhs.m_args. We need to copy the string list and update our
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// own m_argv appropriately.
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//----------------------------------------------------------------------
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Args::Args (const Args &rhs) :
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m_args (rhs.m_args),
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m_argv (),
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m_args_quote_char(rhs.m_args_quote_char)
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{
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UpdateArgvFromArgs();
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}
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//----------------------------------------------------------------------
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// We have to be very careful on the copy constructor of this class
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// to make sure we copy all of the string values, but we can't copy the
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// rhs.m_argv into m_argv since it will point to the "const char *" c
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// strings in rhs.m_args. We need to copy the string list and update our
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// own m_argv appropriately.
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//----------------------------------------------------------------------
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const Args &
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Args::operator= (const Args &rhs)
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{
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// Make sure we aren't assigning to self
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if (this != &rhs)
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{
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m_args = rhs.m_args;
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m_args_quote_char = rhs.m_args_quote_char;
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UpdateArgvFromArgs();
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}
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return *this;
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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Args::~Args ()
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{
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}
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void
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Args::Dump (Stream *s)
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{
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// int argc = GetArgumentCount();
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//
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// arg_sstr_collection::const_iterator pos, begin = m_args.begin(), end = m_args.end();
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// for (pos = m_args.begin(); pos != end; ++pos)
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// {
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// s->Indent();
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// s->Printf("args[%zu]=%s\n", std::distance(begin, pos), pos->c_str());
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// }
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// s->EOL();
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const int argc = m_argv.size();
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for (int i=0; i<argc; ++i)
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{
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s->Indent();
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const char *arg_cstr = m_argv[i];
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if (arg_cstr)
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s->Printf("argv[%i]=\"%s\"\n", i, arg_cstr);
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else
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s->Printf("argv[%i]=NULL\n", i);
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}
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s->EOL();
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}
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bool
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Args::GetCommandString (std::string &command)
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{
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command.clear();
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int argc = GetArgumentCount();
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for (int i=0; i<argc; ++i)
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{
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if (i > 0)
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command += ' ';
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command += m_argv[i];
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}
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return argc > 0;
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}
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bool
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Args::GetQuotedCommandString (std::string &command)
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{
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command.clear ();
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size_t argc = GetArgumentCount ();
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for (size_t i = 0; i < argc; ++i)
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{
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if (i > 0)
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command.append (1, ' ');
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char quote_char = GetArgumentQuoteCharAtIndex(i);
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if (quote_char)
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{
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command.append (1, quote_char);
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command.append (m_argv[i]);
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command.append (1, quote_char);
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}
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else
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command.append (m_argv[i]);
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}
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return argc > 0;
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}
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void
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Args::SetCommandString (const char *command, size_t len)
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{
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// Use std::string to make sure we get a NULL terminated string we can use
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// as "command" could point to a string within a large string....
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std::string null_terminated_command(command, len);
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SetCommandString(null_terminated_command.c_str());
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}
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void
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Args::SetCommandString (const char *command)
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{
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m_args.clear();
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m_argv.clear();
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m_args_quote_char.clear();
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if (command && command[0])
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{
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static const char *k_space_separators = " \t";
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static const char *k_space_separators_with_slash_and_quotes = " \t \\'\"`";
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const char *arg_end = NULL;
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const char *arg_pos;
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for (arg_pos = command;
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arg_pos && arg_pos[0];
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arg_pos = arg_end)
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{
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// Skip any leading space separators
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const char *arg_start = ::strspn (arg_pos, k_space_separators) + arg_pos;
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// If there were only space separators to the end of the line, then
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// we're done.
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if (*arg_start == '\0')
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break;
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// Arguments can be split into multiple discontiguous pieces,
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// for example:
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// "Hello ""World"
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// this would result in a single argument "Hello World" (without/
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// the quotes) since the quotes would be removed and there is
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// not space between the strings. So we need to keep track of the
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// current start of each argument piece in "arg_piece_start"
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const char *arg_piece_start = arg_start;
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arg_pos = arg_piece_start;
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std::string arg;
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// Since we can have multiple quotes that form a single command
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// in a command like: "Hello "world'!' (which will make a single
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// argument "Hello world!") we remember the first quote character
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// we encounter and use that for the quote character.
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char first_quote_char = '\0';
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char quote_char = '\0';
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bool arg_complete = false;
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do
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{
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arg_end = ::strcspn (arg_pos, k_space_separators_with_slash_and_quotes) + arg_pos;
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switch (arg_end[0])
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{
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default:
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assert (!"Unhandled case statement, we must handle this...");
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break;
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case '\0':
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// End of C string
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if (arg_piece_start && arg_piece_start[0])
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arg.append (arg_piece_start);
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arg_complete = true;
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break;
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case '\\':
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// Backslash character
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switch (arg_end[1])
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{
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case '\0':
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arg.append (arg_piece_start);
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arg_complete = true;
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break;
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default:
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arg_pos = arg_end + 2;
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break;
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}
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break;
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case '"':
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case '\'':
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case '`':
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// Quote characters
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if (quote_char)
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{
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// We found a quote character while inside a quoted
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// character argument. If it matches our current quote
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// character, this ends the effect of the quotes. If it
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// doesn't we ignore it.
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if (quote_char == arg_end[0])
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{
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arg.append (arg_piece_start, arg_end - arg_piece_start);
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// Clear the quote character and let parsing
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// continue (we need to watch for things like:
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// "Hello ""World"
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// "Hello "World
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// "Hello "'World'
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// All of which will result in a single argument "Hello World"
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quote_char = '\0'; // Note that we are no longer inside quotes
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arg_pos = arg_end + 1; // Skip the quote character
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arg_piece_start = arg_pos; // Note we are starting from later in the string
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}
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else
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{
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// different quote, skip it and keep going
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arg_pos = arg_end + 1;
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}
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}
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else
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{
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// We found the start of a quote scope.
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// Make sure there isn't a string that precedes
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// the start of a quote scope like:
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// Hello" World"
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// If so, then add the "Hello" to the arg
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if (arg_end > arg_piece_start)
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arg.append (arg_piece_start, arg_end - arg_piece_start);
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// Enter into a quote scope
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quote_char = arg_end[0];
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if (first_quote_char == '\0')
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first_quote_char = quote_char;
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arg_pos = arg_end;
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if (quote_char != '`')
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++arg_pos; // Skip the quote character if it is not a backtick
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arg_piece_start = arg_pos; // Note we are starting from later in the string
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// Skip till the next quote character
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const char *end_quote = ::strchr (arg_piece_start, quote_char);
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while (end_quote && end_quote[-1] == '\\')
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{
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// Don't skip the quote character if it is
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// preceded by a '\' character
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end_quote = ::strchr (end_quote + 1, quote_char);
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}
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if (end_quote)
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{
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if (end_quote > arg_piece_start)
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{
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// Keep the backtick quote on commands
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if (quote_char == '`')
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arg.append (arg_piece_start, end_quote + 1 - arg_piece_start);
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else
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arg.append (arg_piece_start, end_quote - arg_piece_start);
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}
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// If the next character is a space or the end of
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// string, this argument is complete...
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if (end_quote[1] == ' ' || end_quote[1] == '\t' || end_quote[1] == '\0')
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{
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arg_complete = true;
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arg_end = end_quote + 1;
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}
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else
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{
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arg_pos = end_quote + 1;
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arg_piece_start = arg_pos;
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}
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quote_char = '\0';
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}
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}
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break;
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case ' ':
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case '\t':
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if (quote_char)
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{
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// We are currently processing a quoted character and found
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// a space character, skip any spaces and keep trying to find
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// the end of the argument.
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arg_pos = ::strspn (arg_end, k_space_separators) + arg_end;
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}
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else
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{
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// We are not inside any quotes, we just found a space after an
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// argument
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if (arg_end > arg_piece_start)
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arg.append (arg_piece_start, arg_end - arg_piece_start);
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arg_complete = true;
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}
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break;
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}
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} while (!arg_complete);
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m_args.push_back(arg);
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m_args_quote_char.push_back (first_quote_char);
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}
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UpdateArgvFromArgs();
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}
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}
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void
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Args::UpdateArgsAfterOptionParsing()
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{
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// Now m_argv might be out of date with m_args, so we need to fix that
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arg_cstr_collection::const_iterator argv_pos, argv_end = m_argv.end();
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arg_sstr_collection::iterator args_pos;
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arg_quote_char_collection::iterator quotes_pos;
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for (argv_pos = m_argv.begin(), args_pos = m_args.begin(), quotes_pos = m_args_quote_char.begin();
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argv_pos != argv_end && args_pos != m_args.end();
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++argv_pos)
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{
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const char *argv_cstr = *argv_pos;
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if (argv_cstr == NULL)
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break;
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while (args_pos != m_args.end())
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{
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const char *args_cstr = args_pos->c_str();
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if (args_cstr == argv_cstr)
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{
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// We found the argument that matches the C string in the
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// vector, so we can now look for the next one
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++args_pos;
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++quotes_pos;
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break;
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}
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else
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{
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quotes_pos = m_args_quote_char.erase (quotes_pos);
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args_pos = m_args.erase (args_pos);
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}
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}
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}
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if (args_pos != m_args.end())
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m_args.erase (args_pos, m_args.end());
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if (quotes_pos != m_args_quote_char.end())
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m_args_quote_char.erase (quotes_pos, m_args_quote_char.end());
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}
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void
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Args::UpdateArgvFromArgs()
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{
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m_argv.clear();
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arg_sstr_collection::const_iterator pos, end = m_args.end();
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for (pos = m_args.begin(); pos != end; ++pos)
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m_argv.push_back(pos->c_str());
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m_argv.push_back(NULL);
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// Make sure we have enough arg quote chars in the array
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if (m_args_quote_char.size() < m_args.size())
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m_args_quote_char.resize (m_argv.size());
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}
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size_t
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Args::GetArgumentCount() const
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{
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if (m_argv.empty())
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return 0;
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return m_argv.size() - 1;
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}
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const char *
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Args::GetArgumentAtIndex (size_t idx) const
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{
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if (idx < m_argv.size())
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return m_argv[idx];
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return NULL;
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}
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char
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Args::GetArgumentQuoteCharAtIndex (size_t idx) const
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{
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if (idx < m_args_quote_char.size())
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return m_args_quote_char[idx];
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return '\0';
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}
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char **
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Args::GetArgumentVector()
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{
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if (!m_argv.empty())
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return (char **)&m_argv[0];
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return NULL;
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}
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const char **
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Args::GetConstArgumentVector() const
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{
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if (!m_argv.empty())
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return (const char **)&m_argv[0];
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return NULL;
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}
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void
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Args::Shift ()
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{
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// Don't pop the last NULL terminator from the argv array
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if (m_argv.size() > 1)
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{
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m_argv.erase(m_argv.begin());
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m_args.pop_front();
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if (!m_args_quote_char.empty())
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m_args_quote_char.erase(m_args_quote_char.begin());
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}
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}
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const char *
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Args::Unshift (const char *arg_cstr, char quote_char)
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{
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m_args.push_front(arg_cstr);
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m_argv.insert(m_argv.begin(), m_args.front().c_str());
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m_args_quote_char.insert(m_args_quote_char.begin(), quote_char);
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return GetArgumentAtIndex (0);
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}
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void
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Args::AppendArguments (const Args &rhs)
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{
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const size_t rhs_argc = rhs.GetArgumentCount();
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for (size_t i=0; i<rhs_argc; ++i)
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AppendArgument(rhs.GetArgumentAtIndex(i));
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}
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void
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Args::AppendArguments (const char **argv)
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{
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if (argv)
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{
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for (uint32_t i=0; argv[i]; ++i)
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AppendArgument(argv[i]);
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}
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}
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const char *
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Args::AppendArgument (const char *arg_cstr, char quote_char)
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{
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return InsertArgumentAtIndex (GetArgumentCount(), arg_cstr, quote_char);
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}
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const char *
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Args::InsertArgumentAtIndex (size_t idx, const char *arg_cstr, char quote_char)
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{
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// Since we are using a std::list to hold onto the copied C string and
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// we don't have direct access to the elements, we have to iterate to
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// find the value.
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arg_sstr_collection::iterator pos, end = m_args.end();
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size_t i = idx;
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for (pos = m_args.begin(); i > 0 && pos != end; ++pos)
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--i;
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pos = m_args.insert(pos, arg_cstr);
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if (idx >= m_args_quote_char.size())
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{
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m_args_quote_char.resize(idx + 1);
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m_args_quote_char[idx] = quote_char;
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}
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else
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m_args_quote_char.insert(m_args_quote_char.begin() + idx, quote_char);
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UpdateArgvFromArgs();
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return GetArgumentAtIndex(idx);
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}
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const char *
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Args::ReplaceArgumentAtIndex (size_t idx, const char *arg_cstr, char quote_char)
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{
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// Since we are using a std::list to hold onto the copied C string and
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// we don't have direct access to the elements, we have to iterate to
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// find the value.
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arg_sstr_collection::iterator pos, end = m_args.end();
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size_t i = idx;
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for (pos = m_args.begin(); i > 0 && pos != end; ++pos)
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--i;
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if (pos != end)
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{
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pos->assign(arg_cstr);
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assert(idx < m_argv.size() - 1);
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m_argv[idx] = pos->c_str();
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if (idx >= m_args_quote_char.size())
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m_args_quote_char.resize(idx + 1);
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m_args_quote_char[idx] = quote_char;
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return GetArgumentAtIndex(idx);
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}
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return NULL;
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}
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void
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|
Args::DeleteArgumentAtIndex (size_t idx)
|
|
{
|
|
// Since we are using a std::list to hold onto the copied C string and
|
|
// we don't have direct access to the elements, we have to iterate to
|
|
// find the value.
|
|
arg_sstr_collection::iterator pos, end = m_args.end();
|
|
size_t i = idx;
|
|
for (pos = m_args.begin(); i > 0 && pos != end; ++pos)
|
|
--i;
|
|
|
|
if (pos != end)
|
|
{
|
|
m_args.erase (pos);
|
|
assert(idx < m_argv.size() - 1);
|
|
m_argv.erase(m_argv.begin() + idx);
|
|
if (idx < m_args_quote_char.size())
|
|
m_args_quote_char.erase(m_args_quote_char.begin() + idx);
|
|
}
|
|
}
|
|
|
|
void
|
|
Args::SetArguments (int argc, const char **argv)
|
|
{
|
|
// m_argv will be rebuilt in UpdateArgvFromArgs() below, so there is
|
|
// no need to clear it here.
|
|
m_args.clear();
|
|
m_args_quote_char.clear();
|
|
|
|
// First copy each string
|
|
for (size_t i=0; i<argc; ++i)
|
|
{
|
|
m_args.push_back (argv[i]);
|
|
if ((argv[i][0] == '\'') || (argv[i][0] == '"') || (argv[i][0] == '`'))
|
|
m_args_quote_char.push_back (argv[i][0]);
|
|
else
|
|
m_args_quote_char.push_back ('\0');
|
|
}
|
|
|
|
UpdateArgvFromArgs();
|
|
}
|
|
|
|
void
|
|
Args::SetArguments (const char **argv)
|
|
{
|
|
// m_argv will be rebuilt in UpdateArgvFromArgs() below, so there is
|
|
// no need to clear it here.
|
|
m_args.clear();
|
|
m_args_quote_char.clear();
|
|
|
|
if (argv)
|
|
{
|
|
// First copy each string
|
|
for (size_t i=0; argv[i]; ++i)
|
|
{
|
|
m_args.push_back (argv[i]);
|
|
if ((argv[i][0] == '\'') || (argv[i][0] == '"') || (argv[i][0] == '`'))
|
|
m_args_quote_char.push_back (argv[i][0]);
|
|
else
|
|
m_args_quote_char.push_back ('\0');
|
|
}
|
|
}
|
|
|
|
UpdateArgvFromArgs();
|
|
}
|
|
|
|
|
|
Error
|
|
Args::ParseOptions (Options &options)
|
|
{
|
|
StreamString sstr;
|
|
Error error;
|
|
struct option *long_options = options.GetLongOptions();
|
|
if (long_options == NULL)
|
|
{
|
|
error.SetErrorStringWithFormat("invalid long options");
|
|
return error;
|
|
}
|
|
|
|
for (int i=0; long_options[i].name != NULL; ++i)
|
|
{
|
|
if (long_options[i].flag == NULL)
|
|
{
|
|
sstr << (char)long_options[i].val;
|
|
switch (long_options[i].has_arg)
|
|
{
|
|
default:
|
|
case no_argument: break;
|
|
case required_argument: sstr << ':'; break;
|
|
case optional_argument: sstr << "::"; break;
|
|
}
|
|
}
|
|
}
|
|
#ifdef __GLIBC__
|
|
optind = 0;
|
|
#else
|
|
optreset = 1;
|
|
optind = 1;
|
|
#endif
|
|
int val;
|
|
while (1)
|
|
{
|
|
int long_options_index = -1;
|
|
val = ::getopt_long(GetArgumentCount(), GetArgumentVector(), sstr.GetData(), long_options,
|
|
&long_options_index);
|
|
if (val == -1)
|
|
break;
|
|
|
|
// Did we get an error?
|
|
if (val == '?')
|
|
{
|
|
error.SetErrorStringWithFormat("unknown or ambiguous option");
|
|
break;
|
|
}
|
|
// The option auto-set itself
|
|
if (val == 0)
|
|
continue;
|
|
|
|
((Options *) &options)->OptionSeen (val);
|
|
|
|
// Lookup the long option index
|
|
if (long_options_index == -1)
|
|
{
|
|
for (int i=0;
|
|
long_options[i].name || long_options[i].has_arg || long_options[i].flag || long_options[i].val;
|
|
++i)
|
|
{
|
|
if (long_options[i].val == val)
|
|
{
|
|
long_options_index = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// Call the callback with the option
|
|
if (long_options_index >= 0)
|
|
{
|
|
error = options.SetOptionValue(long_options_index,
|
|
long_options[long_options_index].has_arg == no_argument ? NULL : optarg);
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorStringWithFormat("invalid option with value '%i'", val);
|
|
}
|
|
if (error.Fail())
|
|
break;
|
|
}
|
|
|
|
// Update our ARGV now that get options has consumed all the options
|
|
m_argv.erase(m_argv.begin(), m_argv.begin() + optind);
|
|
UpdateArgsAfterOptionParsing ();
|
|
return error;
|
|
}
|
|
|
|
void
|
|
Args::Clear ()
|
|
{
|
|
m_args.clear ();
|
|
m_argv.clear ();
|
|
m_args_quote_char.clear();
|
|
}
|
|
|
|
int32_t
|
|
Args::StringToSInt32 (const char *s, int32_t fail_value, int base, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
char *end = NULL;
|
|
int32_t uval = ::strtol (s, &end, base);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return uval; // All characters were used, return the result
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
uint32_t
|
|
Args::StringToUInt32 (const char *s, uint32_t fail_value, int base, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
char *end = NULL;
|
|
uint32_t uval = ::strtoul (s, &end, base);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return uval; // All characters were used, return the result
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
|
|
int64_t
|
|
Args::StringToSInt64 (const char *s, int64_t fail_value, int base, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
char *end = NULL;
|
|
int64_t uval = ::strtoll (s, &end, base);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return uval; // All characters were used, return the result
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
uint64_t
|
|
Args::StringToUInt64 (const char *s, uint64_t fail_value, int base, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
char *end = NULL;
|
|
uint64_t uval = ::strtoull (s, &end, base);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return uval; // All characters were used, return the result
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
lldb::addr_t
|
|
Args::StringToAddress (const char *s, lldb::addr_t fail_value, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
char *end = NULL;
|
|
lldb::addr_t addr = ::strtoull (s, &end, 0);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return addr; // All characters were used, return the result
|
|
}
|
|
// Try base 16 with no prefix...
|
|
addr = ::strtoull (s, &end, 16);
|
|
if (*end == '\0')
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return addr; // All characters were used, return the result
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
bool
|
|
Args::StringToBoolean (const char *s, bool fail_value, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
if (::strcasecmp (s, "false") == 0 ||
|
|
::strcasecmp (s, "off") == 0 ||
|
|
::strcasecmp (s, "no") == 0 ||
|
|
::strcmp (s, "0") == 0)
|
|
{
|
|
if (success_ptr)
|
|
*success_ptr = true;
|
|
return false;
|
|
}
|
|
else
|
|
if (::strcasecmp (s, "true") == 0 ||
|
|
::strcasecmp (s, "on") == 0 ||
|
|
::strcasecmp (s, "yes") == 0 ||
|
|
::strcmp (s, "1") == 0)
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return true;
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
const char *
|
|
Args::StringToVersion (const char *s, uint32_t &major, uint32_t &minor, uint32_t &update)
|
|
{
|
|
major = UINT32_MAX;
|
|
minor = UINT32_MAX;
|
|
update = UINT32_MAX;
|
|
|
|
if (s && s[0])
|
|
{
|
|
char *pos = NULL;
|
|
uint32_t uval32;
|
|
uval32 = ::strtoul (s, &pos, 0);
|
|
if (pos == s)
|
|
return s;
|
|
major = uval32;
|
|
if (*pos == '\0')
|
|
{
|
|
return pos; // Decoded major and got end of string
|
|
}
|
|
else if (*pos == '.')
|
|
{
|
|
const char *minor_cstr = pos + 1;
|
|
uval32 = ::strtoul (minor_cstr, &pos, 0);
|
|
if (pos == minor_cstr)
|
|
return pos; // Didn't get any digits for the minor version...
|
|
minor = uval32;
|
|
if (*pos == '.')
|
|
{
|
|
const char *update_cstr = pos + 1;
|
|
uval32 = ::strtoul (update_cstr, &pos, 0);
|
|
if (pos == update_cstr)
|
|
return pos;
|
|
update = uval32;
|
|
}
|
|
return pos;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int32_t
|
|
Args::StringToOptionEnum (const char *s, OptionEnumValueElement *enum_values, int32_t fail_value, Error &error)
|
|
{
|
|
if (enum_values)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
for (int i = 0; enum_values[i].string_value != NULL ; i++)
|
|
{
|
|
if (strstr(enum_values[i].string_value, s) == enum_values[i].string_value)
|
|
{
|
|
error.Clear();
|
|
return enum_values[i].value;
|
|
}
|
|
}
|
|
}
|
|
|
|
StreamString strm;
|
|
strm.PutCString ("invalid enumeration value, valid values are: ");
|
|
for (int i = 0; enum_values[i].string_value != NULL; i++)
|
|
{
|
|
strm.Printf ("%s\"%s\"",
|
|
i > 0 ? ", " : "",
|
|
enum_values[i].string_value);
|
|
}
|
|
error.SetErrorString(strm.GetData());
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorString ("invalid enumeration argument");
|
|
}
|
|
return fail_value;
|
|
}
|
|
|
|
ScriptLanguage
|
|
Args::StringToScriptLanguage (const char *s, ScriptLanguage fail_value, bool *success_ptr)
|
|
{
|
|
if (s && s[0])
|
|
{
|
|
if ((::strcasecmp (s, "python") == 0) ||
|
|
(::strcasecmp (s, "default") == 0 && eScriptLanguagePython == eScriptLanguageDefault))
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return eScriptLanguagePython;
|
|
}
|
|
if (::strcasecmp (s, "none"))
|
|
{
|
|
if (success_ptr) *success_ptr = true;
|
|
return eScriptLanguageNone;
|
|
}
|
|
}
|
|
if (success_ptr) *success_ptr = false;
|
|
return fail_value;
|
|
}
|
|
|
|
Error
|
|
Args::StringToFormat
|
|
(
|
|
const char *s,
|
|
lldb::Format &format,
|
|
uint32_t *byte_size_ptr
|
|
)
|
|
{
|
|
format = eFormatInvalid;
|
|
Error error;
|
|
|
|
if (s && s[0])
|
|
{
|
|
if (byte_size_ptr)
|
|
{
|
|
if (isdigit (s[0]))
|
|
{
|
|
char *format_char = NULL;
|
|
unsigned long byte_size = ::strtoul (s, &format_char, 0);
|
|
if (byte_size != ULONG_MAX)
|
|
*byte_size_ptr = byte_size;
|
|
s = format_char;
|
|
}
|
|
else
|
|
*byte_size_ptr = 0;
|
|
}
|
|
|
|
const bool partial_match_ok = true;
|
|
if (!FormatManager::GetFormatFromCString (s, partial_match_ok, format))
|
|
{
|
|
StreamString error_strm;
|
|
error_strm.Printf ("Invalid format character or name '%s'. Valid values are:\n", s);
|
|
for (Format f = eFormatDefault; f < kNumFormats; f = Format(f+1))
|
|
{
|
|
char format_char = FormatManager::GetFormatAsFormatChar(f);
|
|
if (format_char)
|
|
error_strm.Printf ("'%c' or ", format_char);
|
|
|
|
error_strm.Printf ("\"%s\"", FormatManager::GetFormatAsCString(f));
|
|
error_strm.EOL();
|
|
}
|
|
|
|
if (byte_size_ptr)
|
|
error_strm.PutCString ("An optional byte size can precede the format character.\n");
|
|
error.SetErrorString(error_strm.GetString().c_str());
|
|
}
|
|
|
|
if (error.Fail())
|
|
return error;
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorStringWithFormat("%s option string", s ? "empty" : "invalid");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
void
|
|
Args::LongestCommonPrefix (std::string &common_prefix)
|
|
{
|
|
arg_sstr_collection::iterator pos, end = m_args.end();
|
|
pos = m_args.begin();
|
|
if (pos == end)
|
|
common_prefix.clear();
|
|
else
|
|
common_prefix = (*pos);
|
|
|
|
for (++pos; pos != end; ++pos)
|
|
{
|
|
size_t new_size = (*pos).size();
|
|
|
|
// First trim common_prefix if it is longer than the current element:
|
|
if (common_prefix.size() > new_size)
|
|
common_prefix.erase (new_size);
|
|
|
|
// Then trim it at the first disparity:
|
|
|
|
for (size_t i = 0; i < common_prefix.size(); i++)
|
|
{
|
|
if ((*pos)[i] != common_prefix[i])
|
|
{
|
|
common_prefix.erase(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we've emptied the common prefix, we're done.
|
|
if (common_prefix.empty())
|
|
break;
|
|
}
|
|
}
|
|
|
|
size_t
|
|
Args::FindArgumentIndexForOption (struct option *long_options, int long_options_index)
|
|
{
|
|
char short_buffer[3];
|
|
char long_buffer[255];
|
|
::snprintf (short_buffer, sizeof (short_buffer), "-%c", (char) long_options[long_options_index].val);
|
|
::snprintf (long_buffer, sizeof (long_buffer), "--%s", long_options[long_options_index].name);
|
|
size_t end = GetArgumentCount ();
|
|
size_t idx = 0;
|
|
while (idx < end)
|
|
{
|
|
if ((::strncmp (GetArgumentAtIndex (idx), short_buffer, strlen (short_buffer)) == 0)
|
|
|| (::strncmp (GetArgumentAtIndex (idx), long_buffer, strlen (long_buffer)) == 0))
|
|
{
|
|
return idx;
|
|
}
|
|
++idx;
|
|
}
|
|
|
|
return end;
|
|
}
|
|
|
|
bool
|
|
Args::IsPositionalArgument (const char *arg)
|
|
{
|
|
if (arg == NULL)
|
|
return false;
|
|
|
|
bool is_positional = true;
|
|
char *cptr = (char *) arg;
|
|
|
|
if (cptr[0] == '%')
|
|
{
|
|
++cptr;
|
|
while (isdigit (cptr[0]))
|
|
++cptr;
|
|
if (cptr[0] != '\0')
|
|
is_positional = false;
|
|
}
|
|
else
|
|
is_positional = false;
|
|
|
|
return is_positional;
|
|
}
|
|
|
|
void
|
|
Args::ParseAliasOptions (Options &options,
|
|
CommandReturnObject &result,
|
|
OptionArgVector *option_arg_vector,
|
|
std::string &raw_input_string)
|
|
{
|
|
StreamString sstr;
|
|
int i;
|
|
struct option *long_options = options.GetLongOptions();
|
|
|
|
if (long_options == NULL)
|
|
{
|
|
result.AppendError ("invalid long options");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; long_options[i].name != NULL; ++i)
|
|
{
|
|
if (long_options[i].flag == NULL)
|
|
{
|
|
sstr << (char) long_options[i].val;
|
|
switch (long_options[i].has_arg)
|
|
{
|
|
default:
|
|
case no_argument:
|
|
break;
|
|
case required_argument:
|
|
sstr << ":";
|
|
break;
|
|
case optional_argument:
|
|
sstr << "::";
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef __GLIBC__
|
|
optind = 0;
|
|
#else
|
|
optreset = 1;
|
|
optind = 1;
|
|
#endif
|
|
int val;
|
|
while (1)
|
|
{
|
|
int long_options_index = -1;
|
|
val = ::getopt_long (GetArgumentCount(), GetArgumentVector(), sstr.GetData(), long_options,
|
|
&long_options_index);
|
|
|
|
if (val == -1)
|
|
break;
|
|
|
|
if (val == '?')
|
|
{
|
|
result.AppendError ("unknown or ambiguous option");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
break;
|
|
}
|
|
|
|
if (val == 0)
|
|
continue;
|
|
|
|
((Options *) &options)->OptionSeen (val);
|
|
|
|
// Look up the long option index
|
|
if (long_options_index == -1)
|
|
{
|
|
for (int j = 0;
|
|
long_options[j].name || long_options[j].has_arg || long_options[j].flag || long_options[j].val;
|
|
++j)
|
|
{
|
|
if (long_options[j].val == val)
|
|
{
|
|
long_options_index = j;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// See if the option takes an argument, and see if one was supplied.
|
|
if (long_options_index >= 0)
|
|
{
|
|
StreamString option_str;
|
|
option_str.Printf ("-%c", (char) val);
|
|
|
|
switch (long_options[long_options_index].has_arg)
|
|
{
|
|
case no_argument:
|
|
option_arg_vector->push_back (OptionArgPair (std::string (option_str.GetData()),
|
|
OptionArgValue (no_argument, "<no-argument>")));
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
break;
|
|
case required_argument:
|
|
if (optarg != NULL)
|
|
{
|
|
option_arg_vector->push_back (OptionArgPair (std::string (option_str.GetData()),
|
|
OptionArgValue (required_argument,
|
|
std::string (optarg))));
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat ("Option '%s' is missing argument specifier.\n",
|
|
option_str.GetData());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
break;
|
|
case optional_argument:
|
|
if (optarg != NULL)
|
|
{
|
|
option_arg_vector->push_back (OptionArgPair (std::string (option_str.GetData()),
|
|
OptionArgValue (optional_argument,
|
|
std::string (optarg))));
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
else
|
|
{
|
|
option_arg_vector->push_back (OptionArgPair (std::string (option_str.GetData()),
|
|
OptionArgValue (optional_argument, "<no-argument>")));
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
break;
|
|
default:
|
|
result.AppendErrorWithFormat
|
|
("error with options table; invalid value in has_arg field for option '%c'.\n",
|
|
(char) val);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat ("Invalid option with value '%c'.\n", (char) val);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
|
|
if (long_options_index >= 0)
|
|
{
|
|
// Find option in the argument list; also see if it was supposed to take an argument and if one was
|
|
// supplied. Remove option (and argument, if given) from the argument list. Also remove them from
|
|
// the raw_input_string, if one was passed in.
|
|
size_t idx = FindArgumentIndexForOption (long_options, long_options_index);
|
|
if (idx < GetArgumentCount())
|
|
{
|
|
if (raw_input_string.size() > 0)
|
|
{
|
|
const char *tmp_arg = GetArgumentAtIndex (idx);
|
|
size_t pos = raw_input_string.find (tmp_arg);
|
|
if (pos != std::string::npos)
|
|
raw_input_string.erase (pos, strlen (tmp_arg));
|
|
}
|
|
ReplaceArgumentAtIndex (idx, "");
|
|
if ((long_options[long_options_index].has_arg != no_argument)
|
|
&& (optarg != NULL)
|
|
&& (idx+1 < GetArgumentCount())
|
|
&& (strcmp (optarg, GetArgumentAtIndex(idx+1)) == 0))
|
|
{
|
|
if (raw_input_string.size() > 0)
|
|
{
|
|
const char *tmp_arg = GetArgumentAtIndex (idx+1);
|
|
size_t pos = raw_input_string.find (tmp_arg);
|
|
if (pos != std::string::npos)
|
|
raw_input_string.erase (pos, strlen (tmp_arg));
|
|
}
|
|
ReplaceArgumentAtIndex (idx+1, "");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!result.Succeeded())
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
Args::ParseArgsForCompletion
|
|
(
|
|
Options &options,
|
|
OptionElementVector &option_element_vector,
|
|
uint32_t cursor_index
|
|
)
|
|
{
|
|
StreamString sstr;
|
|
struct option *long_options = options.GetLongOptions();
|
|
option_element_vector.clear();
|
|
|
|
if (long_options == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Leading : tells getopt to return a : for a missing option argument AND
|
|
// to suppress error messages.
|
|
|
|
sstr << ":";
|
|
for (int i = 0; long_options[i].name != NULL; ++i)
|
|
{
|
|
if (long_options[i].flag == NULL)
|
|
{
|
|
sstr << (char) long_options[i].val;
|
|
switch (long_options[i].has_arg)
|
|
{
|
|
default:
|
|
case no_argument:
|
|
break;
|
|
case required_argument:
|
|
sstr << ":";
|
|
break;
|
|
case optional_argument:
|
|
sstr << "::";
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef __GLIBC__
|
|
optind = 0;
|
|
#else
|
|
optreset = 1;
|
|
optind = 1;
|
|
#endif
|
|
opterr = 0;
|
|
|
|
int val;
|
|
const OptionDefinition *opt_defs = options.GetDefinitions();
|
|
|
|
// Fooey... getopt_long permutes the GetArgumentVector to move the options to the front.
|
|
// So we have to build another Arg and pass that to getopt_long so it doesn't
|
|
// change the one we have.
|
|
|
|
std::vector<const char *> dummy_vec (GetArgumentVector(), GetArgumentVector() + GetArgumentCount() + 1);
|
|
|
|
bool failed_once = false;
|
|
uint32_t dash_dash_pos = -1;
|
|
|
|
while (1)
|
|
{
|
|
bool missing_argument = false;
|
|
int parse_start = optind;
|
|
int long_options_index = -1;
|
|
|
|
val = ::getopt_long (dummy_vec.size() - 1,
|
|
(char *const *) &dummy_vec.front(),
|
|
sstr.GetData(),
|
|
long_options,
|
|
&long_options_index);
|
|
|
|
if (val == -1)
|
|
{
|
|
// When we're completing a "--" which is the last option on line,
|
|
if (failed_once)
|
|
break;
|
|
|
|
failed_once = true;
|
|
|
|
// If this is a bare "--" we mark it as such so we can complete it successfully later.
|
|
// Handling the "--" is a little tricky, since that may mean end of options or arguments, or the
|
|
// user might want to complete options by long name. I make this work by checking whether the
|
|
// cursor is in the "--" argument, and if so I assume we're completing the long option, otherwise
|
|
// I let it pass to getopt_long which will terminate the option parsing.
|
|
// Note, in either case we continue parsing the line so we can figure out what other options
|
|
// were passed. This will be useful when we come to restricting completions based on what other
|
|
// options we've seen on the line.
|
|
|
|
if (optind < dummy_vec.size() - 1
|
|
&& (strcmp (dummy_vec[optind-1], "--") == 0))
|
|
{
|
|
dash_dash_pos = optind - 1;
|
|
if (optind - 1 == cursor_index)
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (OptionArgElement::eBareDoubleDash, optind - 1,
|
|
OptionArgElement::eBareDoubleDash));
|
|
continue;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else if (val == '?')
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (OptionArgElement::eUnrecognizedArg, optind - 1,
|
|
OptionArgElement::eUnrecognizedArg));
|
|
continue;
|
|
}
|
|
else if (val == 0)
|
|
{
|
|
continue;
|
|
}
|
|
else if (val == ':')
|
|
{
|
|
// This is a missing argument.
|
|
val = optopt;
|
|
missing_argument = true;
|
|
}
|
|
|
|
((Options *) &options)->OptionSeen (val);
|
|
|
|
// Look up the long option index
|
|
if (long_options_index == -1)
|
|
{
|
|
for (int j = 0;
|
|
long_options[j].name || long_options[j].has_arg || long_options[j].flag || long_options[j].val;
|
|
++j)
|
|
{
|
|
if (long_options[j].val == val)
|
|
{
|
|
long_options_index = j;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// See if the option takes an argument, and see if one was supplied.
|
|
if (long_options_index >= 0)
|
|
{
|
|
int opt_defs_index = -1;
|
|
for (int i = 0; ; i++)
|
|
{
|
|
if (opt_defs[i].short_option == 0)
|
|
break;
|
|
else if (opt_defs[i].short_option == val)
|
|
{
|
|
opt_defs_index = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (long_options[long_options_index].has_arg)
|
|
{
|
|
case no_argument:
|
|
option_element_vector.push_back (OptionArgElement (opt_defs_index, parse_start, 0));
|
|
break;
|
|
case required_argument:
|
|
if (optarg != NULL)
|
|
{
|
|
int arg_index;
|
|
if (missing_argument)
|
|
arg_index = -1;
|
|
else
|
|
arg_index = optind - 1;
|
|
|
|
option_element_vector.push_back (OptionArgElement (opt_defs_index, optind - 2, arg_index));
|
|
}
|
|
else
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (opt_defs_index, optind - 1, -1));
|
|
}
|
|
break;
|
|
case optional_argument:
|
|
if (optarg != NULL)
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (opt_defs_index, optind - 2, optind - 1));
|
|
}
|
|
else
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (opt_defs_index, optind - 2, optind - 1));
|
|
}
|
|
break;
|
|
default:
|
|
// The options table is messed up. Here we'll just continue
|
|
option_element_vector.push_back (OptionArgElement (OptionArgElement::eUnrecognizedArg, optind - 1,
|
|
OptionArgElement::eUnrecognizedArg));
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (OptionArgElement::eUnrecognizedArg, optind - 1,
|
|
OptionArgElement::eUnrecognizedArg));
|
|
}
|
|
}
|
|
|
|
// Finally we have to handle the case where the cursor index points at a single "-". We want to mark that in
|
|
// the option_element_vector, but only if it is not after the "--". But it turns out that getopt_long just ignores
|
|
// an isolated "-". So we have to look it up by hand here. We only care if it is AT the cursor position.
|
|
|
|
if ((dash_dash_pos == -1 || cursor_index < dash_dash_pos)
|
|
&& strcmp (GetArgumentAtIndex(cursor_index), "-") == 0)
|
|
{
|
|
option_element_vector.push_back (OptionArgElement (OptionArgElement::eBareDash, cursor_index,
|
|
OptionArgElement::eBareDash));
|
|
|
|
}
|
|
}
|