645 lines
20 KiB
C++
645 lines
20 KiB
C++
/*=========================================================================
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Program: KWSys - Kitware System Library
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Module: $RCSfile$
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Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "kwsysPrivate.h"
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#include KWSYS_HEADER(CommandLineArguments.hxx)
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#include KWSYS_HEADER(Configure.hxx)
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#include KWSYS_HEADER(stl/vector)
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#include KWSYS_HEADER(stl/map)
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#include KWSYS_HEADER(stl/set)
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#include KWSYS_HEADER(ios/sstream)
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#include KWSYS_HEADER(ios/iostream)
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef _MSC_VER
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# pragma warning (disable: 4786)
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#endif
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namespace KWSYS_NAMESPACE
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{
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//----------------------------------------------------------------------------
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//============================================================================
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class CommandLineArgumentsString : public kwsys_stl::string
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{
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public:
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typedef kwsys_stl::string StdString;
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CommandLineArgumentsString(): StdString() {}
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CommandLineArgumentsString(const value_type* s): StdString(s) {}
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CommandLineArgumentsString(const value_type* s, size_type n): StdString(s, n) {}
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CommandLineArgumentsString(const StdString& s, size_type pos=0, size_type n=npos):
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StdString(s, pos, n) {}
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};
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struct CommandLineArgumentsCallbackStructure
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{
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const char* Argument;
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int ArgumentType;
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CommandLineArguments::CallbackType Callback;
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void* CallData;
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void* Variable;
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int VariableType;
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const char* Help;
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};
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class CommandLineArgumentsVectorOfStrings :
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public kwsys_stl::vector<CommandLineArgumentsString> {};
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class CommandLineArgumentsSetOfStrings :
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public kwsys_stl::set<CommandLineArgumentsString> {};
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class CommandLineArgumentsMapOfStrucs :
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public kwsys_stl::map<CommandLineArgumentsString,
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CommandLineArgumentsCallbackStructure> {};
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class CommandLineArgumentsInternal
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{
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public:
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CommandLineArgumentsInternal()
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{
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this->UnknownArgumentCallback = 0;
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this->ClientData = 0;
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this->LastArgument = 0;
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}
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typedef CommandLineArgumentsVectorOfStrings VectorOfStrings;
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typedef CommandLineArgumentsMapOfStrucs CallbacksMap;
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typedef CommandLineArgumentsString String;
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typedef CommandLineArgumentsSetOfStrings SetOfStrings;
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VectorOfStrings Argv;
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String Argv0;
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CallbacksMap Callbacks;
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CommandLineArguments::ErrorCallbackType UnknownArgumentCallback;
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void* ClientData;
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VectorOfStrings::size_type LastArgument;
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};
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//============================================================================
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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CommandLineArguments::CommandLineArguments()
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{
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this->Internals = new CommandLineArguments::Internal;
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this->Help = "";
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this->LineLength = 80;
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}
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//----------------------------------------------------------------------------
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CommandLineArguments::~CommandLineArguments()
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{
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delete this->Internals;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::Initialize(int argc, const char* const argv[])
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{
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int cc;
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this->Initialize();
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this->Internals->Argv0 = argv[0];
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for ( cc = 1; cc < argc; cc ++ )
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{
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this->ProcessArgument(argv[cc]);
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}
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::Initialize(int argc, char* argv[])
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{
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this->Initialize(argc, static_cast<const char* const*>(argv));
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::Initialize()
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{
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this->Internals->Argv.clear();
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this->Internals->LastArgument = 0;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::ProcessArgument(const char* arg)
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{
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this->Internals->Argv.push_back(arg);
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}
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//----------------------------------------------------------------------------
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int CommandLineArguments::Parse()
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{
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CommandLineArguments::Internal::VectorOfStrings::size_type cc;
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CommandLineArguments::Internal::VectorOfStrings matches;
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for ( cc = 0; cc < this->Internals->Argv.size(); cc ++ )
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{
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this->Internals->LastArgument = cc;
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matches.clear();
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CommandLineArguments::Internal::String& arg = this->Internals->Argv[cc];
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CommandLineArguments::Internal::CallbacksMap::iterator it;
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// Does the argument match to any we know about?
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for ( it = this->Internals->Callbacks.begin();
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it != this->Internals->Callbacks.end();
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it ++ )
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{
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const CommandLineArguments::Internal::String& parg = it->first;
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CommandLineArgumentsCallbackStructure *cs = &it->second;
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if (cs->ArgumentType == CommandLineArguments::NO_ARGUMENT ||
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cs->ArgumentType == CommandLineArguments::SPACE_ARGUMENT)
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{
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if ( arg == parg )
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{
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matches.push_back(parg);
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}
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}
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else if ( arg.find( parg ) == 0 )
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{
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matches.push_back(parg);
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}
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}
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if ( matches.size() > 0 )
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{
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// Ok, we found one or more arguments that match what user specified.
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// Let's find the longest one.
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CommandLineArguments::Internal::VectorOfStrings::size_type kk;
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CommandLineArguments::Internal::VectorOfStrings::size_type maxidx = 0;
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CommandLineArguments::Internal::String::size_type maxlen = 0;
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for ( kk = 0; kk < matches.size(); kk ++ )
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{
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if ( matches[kk].size() > maxlen )
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{
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maxlen = matches[kk].size();
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maxidx = kk;
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}
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}
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// So, the longest one is probably the right one. Now see if it has any
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// additional value
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const char* value = 0;
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CommandLineArgumentsCallbackStructure *cs
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= &this->Internals->Callbacks[matches[maxidx]];
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const CommandLineArguments::Internal::String& sarg = matches[maxidx];
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if ( cs->ArgumentType == NO_ARGUMENT )
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{
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// No value
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}
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else if ( cs->ArgumentType == SPACE_ARGUMENT )
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{
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if ( cc == this->Internals->Argv.size()-1 )
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{
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this->Internals->LastArgument --;
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return 0;
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}
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// Value is the next argument
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value = this->Internals->Argv[cc+1].c_str();
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cc ++;
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}
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else if ( cs->ArgumentType == EQUAL_ARGUMENT )
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{
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if ( arg.size() == sarg.size() || *(arg.c_str() + sarg.size()) != '=' )
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{
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this->Internals->LastArgument --;
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return 0;
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}
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// Value is everythng followed the '=' sign
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value = arg.c_str() + sarg.size()+1;
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}
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else if ( cs->ArgumentType == CONCAT_ARGUMENT )
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{
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// Value is whatever follows the argument
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value = arg.c_str() + sarg.size();
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}
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// Call the callback
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if ( cs->Callback )
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{
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if ( !cs->Callback(sarg.c_str(), value, cs->CallData) )
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{
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this->Internals->LastArgument --;
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return 0;
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}
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}
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if ( cs->Variable )
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{
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kwsys_stl::string var = "1";
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if ( value )
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{
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var = value;
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}
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if ( cs->VariableType == CommandLineArguments::INT_TYPE )
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{
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int* variable = static_cast<int*>(cs->Variable);
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char* res = 0;
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*variable = strtol(var.c_str(), &res, 10);
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//if ( res && *res )
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// {
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// Can handle non-int
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// }
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}
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else if ( cs->VariableType == CommandLineArguments::DOUBLE_TYPE )
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{
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double* variable = static_cast<double*>(cs->Variable);
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char* res = 0;
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*variable = strtod(var.c_str(), &res);
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//if ( res && *res )
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// {
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// Can handle non-int
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// }
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}
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else if ( cs->VariableType == CommandLineArguments::STRING_TYPE )
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{
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char** variable = static_cast<char**>(cs->Variable);
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if ( *variable )
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{
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delete [] *variable;
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*variable = 0;
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}
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*variable = new char[ strlen(var.c_str()) + 1 ];
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strcpy(*variable, var.c_str());
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}
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else if ( cs->VariableType == CommandLineArguments::STL_STRING_TYPE )
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{
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kwsys_stl::string* variable = static_cast<kwsys_stl::string*>(cs->Variable);
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*variable = var;
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}
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else if ( cs->VariableType == CommandLineArguments::BOOL_TYPE )
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{
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bool* variable = static_cast<bool*>(cs->Variable);
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if ( var == "1" || var == "ON" || var == "TRUE" || var == "true" || var == "on" ||
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var == "True" || var == "yes" || var == "Yes" || var == "YES" )
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{
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*variable = true;
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}
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else
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{
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*variable = false;
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}
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}
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else
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{
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kwsys_ios::cerr << "Got unknown argument type: \"" << cs->VariableType << "\"" << kwsys_ios::endl;
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this->Internals->LastArgument --;
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return 0;
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}
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}
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}
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else
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{
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// Handle unknown arguments
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if ( this->Internals->UnknownArgumentCallback )
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{
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if ( !this->Internals->UnknownArgumentCallback(arg.c_str(),
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this->Internals->ClientData) )
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{
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this->Internals->LastArgument --;
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return 0;
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}
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return 1;
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}
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else
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{
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kwsys_ios::cerr << "Got unknown argument: \"" << arg.c_str() << "\"" << kwsys_ios::endl;
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this->Internals->LastArgument --;
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return 0;
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}
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}
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}
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return 1;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::GetRemainingArguments(int* argc, char*** argv)
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{
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CommandLineArguments::Internal::VectorOfStrings::size_type size
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= this->Internals->Argv.size() - this->Internals->LastArgument + 1;
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CommandLineArguments::Internal::VectorOfStrings::size_type cc;
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// Copy Argv0 as the first argument
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char** args = new char*[ size ];
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args[0] = new char[ this->Internals->Argv0.size() + 1 ];
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strcpy(args[0], this->Internals->Argv0.c_str());
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int cnt = 1;
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// Copy everything after the LastArgument, since that was not parsed.
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for ( cc = this->Internals->LastArgument+1;
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cc < this->Internals->Argv.size(); cc ++ )
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{
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args[cnt] = new char[ this->Internals->Argv[cc].size() + 1];
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strcpy(args[cnt], this->Internals->Argv[cc].c_str());
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cnt ++;
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}
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*argc = cnt;
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*argv = args;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::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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CommandLineArgumentsCallbackStructure s;
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s.Argument = argument;
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s.ArgumentType = type;
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s.Callback = callback;
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s.CallData = call_data;
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s.VariableType = CommandLineArguments::NO_VARIABLE_TYPE;
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s.Variable = 0;
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s.Help = help;
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this->Internals->Callbacks[argument] = s;
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this->GenerateHelp();
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddArgument(const char* argument, ArgumentTypeEnum type,
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VariableTypeEnum vtype, void* variable, const char* help)
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{
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CommandLineArgumentsCallbackStructure s;
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s.Argument = argument;
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s.ArgumentType = type;
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s.Callback = 0;
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s.CallData = 0;
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s.VariableType = vtype;
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s.Variable = variable;
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s.Help = help;
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this->Internals->Callbacks[argument] = s;
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this->GenerateHelp();
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddArgument(const char* argument, ArgumentTypeEnum type,
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int* variable, const char* help)
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{
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this->AddArgument(argument, type, CommandLineArguments::INT_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddArgument(const char* argument, ArgumentTypeEnum type,
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double* variable, const char* help)
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{
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this->AddArgument(argument, type, CommandLineArguments::DOUBLE_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddArgument(const char* argument, ArgumentTypeEnum type,
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char** variable, const char* help)
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{
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this->AddArgument(argument, type, CommandLineArguments::STRING_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::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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this->AddArgument(argument, type, CommandLineArguments::STL_STRING_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddArgument(const char* argument, ArgumentTypeEnum type,
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bool* variable, const char* help)
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{
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this->AddArgument(argument, type, CommandLineArguments::BOOL_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddBooleanArgument(const char* argument, bool*
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variable, const char* help)
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{
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this->AddArgument(argument, CommandLineArguments::NO_ARGUMENT,
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CommandLineArguments::BOOL_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::AddBooleanArgument(const char* argument, int*
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variable, const char* help)
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{
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this->AddArgument(argument, CommandLineArguments::NO_ARGUMENT,
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CommandLineArguments::INT_TYPE, variable, help);
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::SetClientData(void* client_data)
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{
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this->Internals->ClientData = client_data;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::SetUnknownArgumentCallback(
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CommandLineArguments::ErrorCallbackType callback)
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{
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this->Internals->UnknownArgumentCallback = callback;
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}
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//----------------------------------------------------------------------------
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const char* CommandLineArguments::GetHelp(const char* arg)
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{
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CommandLineArguments::Internal::CallbacksMap::iterator it
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= this->Internals->Callbacks.find(arg);
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if ( it == this->Internals->Callbacks.end() )
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{
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return 0;
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}
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// Since several arguments may point to the same argument, find the one this
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// one point to if this one is pointing to another argument.
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CommandLineArgumentsCallbackStructure *cs = &(it->second);
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while ( 1 )
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{
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CommandLineArguments::Internal::CallbacksMap::iterator hit
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= this->Internals->Callbacks.find(cs->Help);
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if ( hit == this->Internals->Callbacks.end() )
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{
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return cs->Help;
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}
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cs = &(hit->second);
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}
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// Should never happened
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return 0;
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::SetLineLength(unsigned int ll)
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{
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if ( ll < 9 || ll > 1000 )
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{
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return;
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}
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this->LineLength = ll;
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this->GenerateHelp();
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}
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//----------------------------------------------------------------------------
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void CommandLineArguments::GenerateHelp()
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{
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kwsys_ios::ostringstream str;
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// Collapse all arguments into the map of vectors of all arguments that do
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// the same thing.
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CommandLineArguments::Internal::CallbacksMap::iterator it;
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typedef kwsys_stl::map<CommandLineArguments::Internal::String,
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CommandLineArguments::Internal::SetOfStrings > MapArgs;
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MapArgs mp;
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MapArgs::iterator mpit, smpit;
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for ( it = this->Internals->Callbacks.begin();
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it != this->Internals->Callbacks.end();
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it ++ )
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{
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CommandLineArgumentsCallbackStructure *cs = &(it->second);
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mpit = mp.find(cs->Help);
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if ( mpit != mp.end() )
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{
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mpit->second.insert(it->first);
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mp[it->first].insert(it->first);
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}
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else
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{
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mp[it->first].insert(it->first);
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}
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}
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for ( it = this->Internals->Callbacks.begin();
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it != this->Internals->Callbacks.end();
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it ++ )
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{
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CommandLineArgumentsCallbackStructure *cs = &(it->second);
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mpit = mp.find(cs->Help);
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if ( mpit != mp.end() )
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{
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mpit->second.insert(it->first);
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smpit = mp.find(it->first);
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CommandLineArguments::Internal::SetOfStrings::iterator sit;
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for ( sit = smpit->second.begin(); sit != smpit->second.end(); sit++ )
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{
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mpit->second.insert(*sit);
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}
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mp.erase(smpit);
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}
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else
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{
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mp[it->first].insert(it->first);
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}
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}
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// Find the length of the longest string
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CommandLineArguments::Internal::String::size_type maxlen = 0;
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for ( mpit = mp.begin();
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mpit != mp.end();
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mpit ++ )
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{
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CommandLineArguments::Internal::SetOfStrings::iterator sit;
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for ( sit = mpit->second.begin(); sit != mpit->second.end(); sit++ )
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{
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CommandLineArguments::Internal::String::size_type clen = sit->size();
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switch ( this->Internals->Callbacks[*sit].ArgumentType )
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{
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case CommandLineArguments::NO_ARGUMENT: clen += 0; break;
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case CommandLineArguments::CONCAT_ARGUMENT: clen += 3; break;
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case CommandLineArguments::SPACE_ARGUMENT: clen += 4; break;
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case CommandLineArguments::EQUAL_ARGUMENT: clen += 4; break;
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}
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if ( clen > maxlen )
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{
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maxlen = clen;
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}
|
|
}
|
|
}
|
|
|
|
// Create format for that string
|
|
char format[80];
|
|
sprintf(format, " %%-%ds ", static_cast<unsigned int>(maxlen));
|
|
|
|
maxlen += 4; // For the space before and after the option
|
|
|
|
// Print help for each option
|
|
for ( mpit = mp.begin();
|
|
mpit != mp.end();
|
|
mpit ++ )
|
|
{
|
|
CommandLineArguments::Internal::SetOfStrings::iterator sit;
|
|
for ( sit = mpit->second.begin(); sit != mpit->second.end(); sit++ )
|
|
{
|
|
str << kwsys_ios::endl;
|
|
char argument[100];
|
|
sprintf(argument, sit->c_str());
|
|
switch ( this->Internals->Callbacks[*sit].ArgumentType )
|
|
{
|
|
case CommandLineArguments::NO_ARGUMENT: break;
|
|
case CommandLineArguments::CONCAT_ARGUMENT: strcat(argument, "opt"); break;
|
|
case CommandLineArguments::SPACE_ARGUMENT: strcat(argument, " opt"); break;
|
|
case CommandLineArguments::EQUAL_ARGUMENT: strcat(argument, "=opt"); break;
|
|
}
|
|
char buffer[80];
|
|
sprintf(buffer, format, argument);
|
|
str << buffer;
|
|
}
|
|
const char* ptr = this->Internals->Callbacks[mpit->first].Help;
|
|
int len = strlen(ptr);
|
|
int cnt = 0;
|
|
while ( len > 0)
|
|
{
|
|
// If argument with help is longer than line length, split it on previous
|
|
// space (or tab) and continue on the next line
|
|
CommandLineArguments::Internal::String::size_type cc;
|
|
for ( cc = 0; ptr[cc]; cc ++ )
|
|
{
|
|
if ( *ptr == ' ' || *ptr == '\t' )
|
|
{
|
|
ptr ++;
|
|
len --;
|
|
}
|
|
}
|
|
if ( cnt > 0 )
|
|
{
|
|
for ( cc = 0; cc < maxlen; cc ++ )
|
|
{
|
|
str << " ";
|
|
}
|
|
}
|
|
CommandLineArguments::Internal::String::size_type skip = len;
|
|
if ( skip > this->LineLength - maxlen )
|
|
{
|
|
skip = this->LineLength - maxlen;
|
|
for ( cc = skip-1; cc > 0; cc -- )
|
|
{
|
|
if ( ptr[cc] == ' ' || ptr[cc] == '\t' )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
if ( cc != 0 )
|
|
{
|
|
skip = cc;
|
|
}
|
|
}
|
|
str.write(ptr, skip);
|
|
str << kwsys_ios::endl;
|
|
ptr += skip;
|
|
len -= skip;
|
|
cnt ++;
|
|
}
|
|
}
|
|
/*
|
|
// This can help debugging help string
|
|
str << endl;
|
|
unsigned int cc;
|
|
for ( cc = 0; cc < this->LineLength; cc ++ )
|
|
{
|
|
str << cc % 10;
|
|
}
|
|
str << endl;
|
|
*/
|
|
this->Help = str.str();
|
|
}
|
|
|
|
} // namespace KWSYS_NAMESPACE
|