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de955e4b6d
This converts the KWSys license to a pure 3-clause OSI-approved BSD License. We drop the previous license clause requiring modified versions to be plainly marked. We also update the KWSys copyright to cover the full development time range.
287 lines
10 KiB
C++
287 lines
10 KiB
C++
/*============================================================================
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KWSys - Kitware System Library
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef @KWSYS_NAMESPACE@_CommandLineArguments_hxx
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#define @KWSYS_NAMESPACE@_CommandLineArguments_hxx
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#include <@KWSYS_NAMESPACE@/Configure.h>
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#include <@KWSYS_NAMESPACE@/Configure.hxx>
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#include <@KWSYS_NAMESPACE@/stl/string>
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#include <@KWSYS_NAMESPACE@/stl/vector>
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/* Define this macro temporarily to keep the code readable. */
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#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
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# define kwsys_stl @KWSYS_NAMESPACE@_stl
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#endif
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namespace @KWSYS_NAMESPACE@
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{
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class CommandLineArgumentsInternal;
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struct CommandLineArgumentsCallbackStructure;
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/** \class CommandLineArguments
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* \brief Command line arguments processing code.
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*
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* Find specified arguments with optional options and execute specified methods
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* or set given variables.
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*
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* The two interfaces it knows are callback based and variable based. For
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* callback based, you have to register callback for particular argument using
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* AddCallback method. When that argument is passed, the callback will be
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* called with argument, value, and call data. For boolean (NO_ARGUMENT)
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* arguments, the value is "1". If the callback returns 0 the argument parsing
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* will stop with an error.
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*
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* For the variable interface you associate variable with each argument. When
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* the argument is specified, the variable is set to the specified value casted
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* to the apropriate type. For boolean (NO_ARGUMENT), the value is "1".
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*
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* Both interfaces can be used at the same time.
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*
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* Possible argument types are:
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* NO_ARGUMENT - The argument takes no value : --A
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* CONCAT_ARGUMENT - The argument takes value after no space : --Aval
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* SPACE_ARGUMENT - The argument takes value after space : --A val
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* EQUAL_ARGUMENT - The argument takes value after equal : --A=val
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* MULTI_ARGUMENT - The argument takes values after space : --A val1 val2 val3 ...
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*
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* Example use:
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*
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* kwsys::CommandLineArguments arg;
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* arg.Initialize(argc, argv);
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* typedef kwsys::CommandLineArguments argT;
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* arg.AddArgument("--something", argT::EQUAL_ARGUMENT, &some_variable,
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* "This is help string for --something");
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* if ( !arg.Parse() )
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* {
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* kwsys_ios::cerr << "Problem parsing arguments" << kwsys_ios::endl;
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* res = 1;
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* }
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*
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*/
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class @KWSYS_NAMESPACE@_EXPORT CommandLineArguments
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{
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public:
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CommandLineArguments();
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~CommandLineArguments();
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/**
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* Various argument types.
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*/
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enum ArgumentTypeEnum {
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NO_ARGUMENT,
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CONCAT_ARGUMENT,
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SPACE_ARGUMENT,
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EQUAL_ARGUMENT,
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MULTI_ARGUMENT
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};
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/**
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* Various variable types. When using the variable interface, this specifies
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* what type the variable is.
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*/
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enum VariableTypeEnum {
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NO_VARIABLE_TYPE = 0, // The variable is not specified
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INT_TYPE, // The variable is integer (int)
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BOOL_TYPE, // The variable is boolean (bool)
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DOUBLE_TYPE, // The variable is float (double)
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STRING_TYPE, // The variable is string (char*)
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STL_STRING_TYPE, // The variable is string (char*)
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VECTOR_INT_TYPE, // The variable is integer (int)
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VECTOR_BOOL_TYPE, // The vairable is boolean (bool)
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VECTOR_DOUBLE_TYPE, // The variable is float (double)
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VECTOR_STRING_TYPE, // The variable is string (char*)
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VECTOR_STL_STRING_TYPE, // The variable is string (char*)
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LAST_VARIABLE_TYPE
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};
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/**
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* Prototypes for callbacks for callback interface.
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*/
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typedef int(*CallbackType)(const char* argument, const char* value,
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void* call_data);
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typedef int(*ErrorCallbackType)(const char* argument, void* client_data);
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/**
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* Initialize internal data structures. This should be called before parsing.
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*/
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void Initialize(int argc, const char* const argv[]);
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void Initialize(int argc, char* argv[]);
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/**
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* Initialize internal data structure and pass arguments one by one. This is
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* convenience method for use from scripting languages where argc and argv
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* are not available.
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*/
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void Initialize();
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void ProcessArgument(const char* arg);
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/**
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* This method will parse arguments and call apropriate methods.
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*/
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int Parse();
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/**
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* This method will add a callback for a specific argument. The arguments to
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* it are argument, argument type, callback method, and call data. The
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* argument help specifies the help string used with this option. The
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* callback and call_data can be skipped.
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*/
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void AddCallback(const char* argument, ArgumentTypeEnum type,
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CallbackType callback, void* call_data, const char* help);
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/**
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* Add handler for argument which is going to set the variable to the
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* specified value. If the argument is specified, the option is casted to the
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* apropriate type.
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*/
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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bool* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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int* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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double* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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char** variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::string* variable, const char* help);
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/**
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* Add handler for argument which is going to set the variable to the
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* specified value. If the argument is specified, the option is casted to the
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* apropriate type. This will handle the multi argument values.
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*/
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::vector<bool>* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::vector<int>* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::vector<double>* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::vector<char*>* variable, const char* help);
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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kwsys_stl::vector<kwsys_stl::string>* variable, const char* help);
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/**
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* Add handler for boolean argument. The argument does not take any option
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* and if it is specified, the value of the variable is true/1, otherwise it
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* is false/0.
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*/
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void AddBooleanArgument(const char* argument,
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bool* variable, const char* help);
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void AddBooleanArgument(const char* argument,
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int* variable, const char* help);
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void AddBooleanArgument(const char* argument,
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double* variable, const char* help);
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void AddBooleanArgument(const char* argument,
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char** variable, const char* help);
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void AddBooleanArgument(const char* argument,
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kwsys_stl::string* variable, const char* help);
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/**
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* Set the callbacks for error handling.
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*/
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void SetClientData(void* client_data);
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void SetUnknownArgumentCallback(ErrorCallbackType callback);
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/**
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* Get remaining arguments. It allocates space for argv, so you have to call
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* delete[] on it.
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*/
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void GetRemainingArguments(int* argc, char*** argv);
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void DeleteRemainingArguments(int argc, char*** argv);
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/**
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* If StoreUnusedArguments is set to true, then all unknown arguments will be
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* stored and the user can access the modified argc, argv without known
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* arguments.
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*/
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void StoreUnusedArguments(bool val) { this->StoreUnusedArgumentsFlag = val; }
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void GetUnusedArguments(int* argc, char*** argv);
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/**
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* Return string containing help. If the argument is specified, only return
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* help for that argument.
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*/
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const char* GetHelp() { return this->Help.c_str(); }
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const char* GetHelp(const char* arg);
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/**
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* Get / Set the help line length. This length is used when generating the
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* help page. Default length is 80.
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*/
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void SetLineLength(unsigned int);
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unsigned int GetLineLength();
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/**
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* Get the executable name (argv0). This is only available when using
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* Initialize with argc/argv.
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*/
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const char* GetArgv0();
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/**
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* Get index of the last argument parsed. This is the last argument that was
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* parsed ok in the original argc/argv list.
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*/
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unsigned int GetLastArgument();
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protected:
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void GenerateHelp();
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//! This is internal method that registers variable with argument
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void AddArgument(const char* argument, ArgumentTypeEnum type,
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VariableTypeEnum vtype, void* variable, const char* help);
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bool GetMatchedArguments(kwsys_stl::vector<kwsys_stl::string>* matches,
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const kwsys_stl::string& arg);
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//! Populate individual variables
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bool PopulateVariable(CommandLineArgumentsCallbackStructure* cs,
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const char* value);
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//! Populate individual variables of type ...
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void PopulateVariable(bool* variable, const kwsys_stl::string& value);
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void PopulateVariable(int* variable, const kwsys_stl::string& value);
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void PopulateVariable(double* variable, const kwsys_stl::string& value);
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void PopulateVariable(char** variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::string* variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::vector<bool>* variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::vector<int>* variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::vector<double>* variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::vector<char*>* variable, const kwsys_stl::string& value);
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void PopulateVariable(kwsys_stl::vector<kwsys_stl::string>* variable, const kwsys_stl::string& value);
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typedef CommandLineArgumentsInternal Internal;
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Internal* Internals;
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kwsys_stl::string Help;
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unsigned int LineLength;
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bool StoreUnusedArgumentsFlag;
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};
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} // namespace @KWSYS_NAMESPACE@
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/* Undefine temporary macro. */
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#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
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# undef kwsys_stl
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#endif
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#endif
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