Store the command line in a more convenient format on non-windows platforms.

base/command_line.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains a class that can be used to extract the salient
 // elements of a command line in a relatively lightweight manner.
 // Switches can optionally have a value attached using an equals sign,
 // as in "-switch=value".  Arguments that aren't prefixed with a
 // switch prefix are considered "loose parameters".  Switch names
 // are case-insensitive.  An argument of "--" will terminate switch parsing,
@@ skipping 14 matching lines @@
   // Creates a parsed version of the command line used to launch
   // the current process.
   CommandLine();
 
 #if defined(OS_WIN)
   // Creates a parsed version of the given command-line string.
   // The program name is assumed to be the first item in the string.  
   CommandLine(const std::wstring& command_line);
 #elif defined(OS_POSIX)
   CommandLine(int argc, const char* const* argv);
+  CommandLine(const std::vector<std::string>& argv);
 #endif
 
   ~CommandLine();
 
   // On non-Windows platforms, main() must call SetArgcArgv() before accessing
   // any members of this class.
   // On Windows, this call is a no-op (we instead parse GetCommandLineW()
   // directly) because we don't trust the CRT's parsing of the command line.
   static void SetArgcArgv(int argc, const char* const* argv);
 
@@ skipping 15 matching lines @@
 
   // Returns a const_iterator to the list of loose values.
   LooseValueIterator GetLooseValuesBegin() const;
 
   // Returns the end const_iterator for the list of loose values.
   LooseValueIterator GetLooseValuesEnd() const;
 
   // Simply returns the original command line string.
   std::wstring command_line_string() const;
 
+#if defined(OS_POSIX)
+  // Returns the original command line string as a vector of c-strings.

[Evan Martin, 2008/10/15 21:54:40]

This comment is no longer accurate.  ("c-strings" should be just "strings")

+  const std::vector<std::string>& argv() const;
+#endif
+
   // Returns the program part of the command line string (the first item).
   std::wstring program() const;
 
   // An array containing the prefixes that identify an argument as
   // a switch.
   static const wchar_t* const kSwitchPrefixes[];
 
   // The string that's used to separate switches from their values.
   static const wchar_t kSwitchValueSeparator[];
 
   // Treat everything after this argument as loose parameters.
   static const wchar_t kSwitchTerminator[];
 
+  // Return a copy of the string prefixed with a switch prefix.
+  // Used internally.
+  static std::wstring PrefixedSwitchString(const std::wstring& switch_string);
+
+  // Return a copy of the string prefixed with a switch prefix,
+  // and appended with the given value. Used internally.
+  static std::wstring PrefixedSwitchStringWithValue(
+                        const std::wstring& switch_string,
+                        const std::wstring& value_string);
+
   // Appends the given switch string (preceded by a space and a switch
   // prefix) to the given string.
   static void AppendSwitch(std::wstring* command_line_string,
                            const std::wstring& switch_string);
 
   // Appends the given switch string (preceded by a space and a switch
   // prefix) to the given string, with the given value attached.
   static void AppendSwitchWithValue(std::wstring* command_line_string,
                                     const std::wstring& switch_string,
                                     const std::wstring& value_string);
 
  private:
   class Data;
 
   // True if we are responsible for deleting our |data_| pointer.  In some cases
   // we cache the result of parsing the command line and |data_|'s lifetime is
   // managed by someone else (e.g., the |Singleton| class).
   bool we_own_data_;
 
   // A pointer to the parsed version of the command line.
   Data* data_;
   
   DISALLOW_EVIL_CONSTRUCTORS(CommandLine);
 };
 
 #endif  // BASE_COMMAND_LINE_H_