1055 lines
40 KiB
C++
1055 lines
40 KiB
C++
/*
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* Created by Phil on 25/05/2013.
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* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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// Version 0.0.2.4
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// Only use header guard if we are not using an outer namespace
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#if !defined(TWOBLUECUBES_CLARA_H_INCLUDED) || defined(STITCH_CLARA_OPEN_NAMESPACE)
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#ifndef STITCH_CLARA_OPEN_NAMESPACE
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#define TWOBLUECUBES_CLARA_H_INCLUDED
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#define STITCH_CLARA_OPEN_NAMESPACE
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#define STITCH_CLARA_CLOSE_NAMESPACE
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#else
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#define STITCH_CLARA_CLOSE_NAMESPACE }
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#endif
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#define STITCH_TBC_TEXT_FORMAT_OPEN_NAMESPACE STITCH_CLARA_OPEN_NAMESPACE
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// ----------- #included from tbc_text_format.h -----------
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/*
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* Created by Phil on 18/4/2013.
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* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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// Only use header guard if we are not using an outer namespace
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#if !defined(TBC_TEXT_FORMAT_H_INCLUDED) || defined(STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE)
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#ifndef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
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#define TBC_TEXT_FORMAT_H_INCLUDED
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#endif
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#include <string>
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#include <vector>
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#include <sstream>
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#include <algorithm>
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#include <cctype>
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// Use optional outer namespace
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#ifdef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
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namespace STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE {
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#endif
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namespace Tbc {
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#ifdef TBC_TEXT_FORMAT_CONSOLE_WIDTH
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const unsigned int consoleWidth = TBC_TEXT_FORMAT_CONSOLE_WIDTH;
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#else
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const unsigned int consoleWidth = 80;
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#endif
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struct TextAttributes {
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TextAttributes()
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: initialIndent( std::string::npos ),
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indent( 0 ),
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width( consoleWidth-1 ),
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tabChar( '\t' )
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{}
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TextAttributes& setInitialIndent( std::size_t _value ) { initialIndent = _value; return *this; }
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TextAttributes& setIndent( std::size_t _value ) { indent = _value; return *this; }
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TextAttributes& setWidth( std::size_t _value ) { width = _value; return *this; }
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TextAttributes& setTabChar( char _value ) { tabChar = _value; return *this; }
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std::size_t initialIndent; // indent of first line, or npos
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std::size_t indent; // indent of subsequent lines, or all if initialIndent is npos
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std::size_t width; // maximum width of text, including indent. Longer text will wrap
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char tabChar; // If this char is seen the indent is changed to current pos
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};
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class Text {
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public:
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Text( std::string const& _str, TextAttributes const& _attr = TextAttributes() )
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: attr( _attr )
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{
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std::string wrappableChars = " [({.,/|\\-";
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std::size_t indent = _attr.initialIndent != std::string::npos
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? _attr.initialIndent
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: _attr.indent;
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std::string remainder = _str;
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while( !remainder.empty() ) {
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if( lines.size() >= 1000 ) {
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lines.push_back( "... message truncated due to excessive size" );
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return;
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}
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std::size_t tabPos = std::string::npos;
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std::size_t width = (std::min)( remainder.size(), _attr.width - indent );
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std::size_t pos = remainder.find_first_of( '\n' );
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if( pos <= width ) {
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width = pos;
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}
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pos = remainder.find_last_of( _attr.tabChar, width );
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if( pos != std::string::npos ) {
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tabPos = pos;
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if( remainder[width] == '\n' )
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width--;
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remainder = remainder.substr( 0, tabPos ) + remainder.substr( tabPos+1 );
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}
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if( width == remainder.size() ) {
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spliceLine( indent, remainder, width );
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}
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else if( remainder[width] == '\n' ) {
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spliceLine( indent, remainder, width );
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if( width <= 1 || remainder.size() != 1 )
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remainder = remainder.substr( 1 );
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indent = _attr.indent;
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}
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else {
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pos = remainder.find_last_of( wrappableChars, width );
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if( pos != std::string::npos && pos > 0 ) {
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spliceLine( indent, remainder, pos );
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if( remainder[0] == ' ' )
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remainder = remainder.substr( 1 );
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}
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else {
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spliceLine( indent, remainder, width-1 );
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lines.back() += "-";
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}
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if( lines.size() == 1 )
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indent = _attr.indent;
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if( tabPos != std::string::npos )
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indent += tabPos;
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}
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}
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}
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void spliceLine( std::size_t _indent, std::string& _remainder, std::size_t _pos ) {
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lines.push_back( std::string( _indent, ' ' ) + _remainder.substr( 0, _pos ) );
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_remainder = _remainder.substr( _pos );
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}
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typedef std::vector<std::string>::const_iterator const_iterator;
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const_iterator begin() const { return lines.begin(); }
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const_iterator end() const { return lines.end(); }
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std::string const& last() const { return lines.back(); }
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std::size_t size() const { return lines.size(); }
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std::string const& operator[]( std::size_t _index ) const { return lines[_index]; }
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std::string toString() const {
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std::ostringstream oss;
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oss << *this;
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return oss.str();
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}
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inline friend std::ostream& operator << ( std::ostream& _stream, Text const& _text ) {
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for( Text::const_iterator it = _text.begin(), itEnd = _text.end();
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it != itEnd; ++it ) {
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if( it != _text.begin() )
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_stream << "\n";
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_stream << *it;
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}
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return _stream;
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}
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private:
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std::string str;
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TextAttributes attr;
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std::vector<std::string> lines;
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};
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} // end namespace Tbc
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#ifdef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
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} // end outer namespace
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#endif
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#endif // TBC_TEXT_FORMAT_H_INCLUDED
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// ----------- end of #include from tbc_text_format.h -----------
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// ........... back in clara.h
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#undef STITCH_TBC_TEXT_FORMAT_OPEN_NAMESPACE
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// ----------- #included from clara_compilers.h -----------
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/*
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* Created by Phil on 10/02/2016.
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* Copyright 2016 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
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#define TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
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// Detect a number of compiler features - mostly C++11/14 conformance - by compiler
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// The following features are defined:
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//
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// CLARA_CONFIG_CPP11_NULLPTR : is nullptr supported?
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// CLARA_CONFIG_CPP11_NOEXCEPT : is noexcept supported?
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// CLARA_CONFIG_CPP11_GENERATED_METHODS : The delete and default keywords for compiler generated methods
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// CLARA_CONFIG_CPP11_OVERRIDE : is override supported?
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// CLARA_CONFIG_CPP11_UNIQUE_PTR : is unique_ptr supported (otherwise use auto_ptr)
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// CLARA_CONFIG_CPP11_OR_GREATER : Is C++11 supported?
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// CLARA_CONFIG_VARIADIC_MACROS : are variadic macros supported?
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// In general each macro has a _NO_<feature name> form
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// (e.g. CLARA_CONFIG_CPP11_NO_NULLPTR) which disables the feature.
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// Many features, at point of detection, define an _INTERNAL_ macro, so they
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// can be combined, en-mass, with the _NO_ forms later.
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// All the C++11 features can be disabled with CLARA_CONFIG_NO_CPP11
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#ifdef __clang__
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#if __has_feature(cxx_nullptr)
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#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
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#endif
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#if __has_feature(cxx_noexcept)
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#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
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#endif
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#endif // __clang__
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////////////////////////////////////////////////////////////////////////////////
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// GCC
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#ifdef __GNUC__
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#if __GNUC__ == 4 && __GNUC_MINOR__ >= 6 && defined(__GXX_EXPERIMENTAL_CXX0X__)
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#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
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#endif
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// - otherwise more recent versions define __cplusplus >= 201103L
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// and will get picked up below
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#endif // __GNUC__
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////////////////////////////////////////////////////////////////////////////////
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// Visual C++
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#ifdef _MSC_VER
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#if (_MSC_VER >= 1600)
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#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
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#define CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
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#endif
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#if (_MSC_VER >= 1900 ) // (VC++ 13 (VS2015))
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#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
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#define CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
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#endif
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#endif // _MSC_VER
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////////////////////////////////////////////////////////////////////////////////
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// C++ language feature support
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// catch all support for C++11
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#if defined(__cplusplus) && __cplusplus >= 201103L
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#define CLARA_CPP11_OR_GREATER
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#if !defined(CLARA_INTERNAL_CONFIG_CPP11_NULLPTR)
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#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
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#endif
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#ifndef CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
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#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
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#endif
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#ifndef CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
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#define CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
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#endif
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#if !defined(CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE)
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#define CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE
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#endif
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#if !defined(CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR)
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#define CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
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#endif
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#endif // __cplusplus >= 201103L
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// Now set the actual defines based on the above + anything the user has configured
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#if defined(CLARA_INTERNAL_CONFIG_CPP11_NULLPTR) && !defined(CLARA_CONFIG_CPP11_NO_NULLPTR) && !defined(CLARA_CONFIG_CPP11_NULLPTR) && !defined(CLARA_CONFIG_NO_CPP11)
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#define CLARA_CONFIG_CPP11_NULLPTR
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#endif
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#if defined(CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_CONFIG_CPP11_NO_NOEXCEPT) && !defined(CLARA_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_CONFIG_NO_CPP11)
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#define CLARA_CONFIG_CPP11_NOEXCEPT
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#endif
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#if defined(CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS) && !defined(CLARA_CONFIG_CPP11_NO_GENERATED_METHODS) && !defined(CLARA_CONFIG_CPP11_GENERATED_METHODS) && !defined(CLARA_CONFIG_NO_CPP11)
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#define CLARA_CONFIG_CPP11_GENERATED_METHODS
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#endif
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#if defined(CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE) && !defined(CLARA_CONFIG_NO_OVERRIDE) && !defined(CLARA_CONFIG_CPP11_OVERRIDE) && !defined(CLARA_CONFIG_NO_CPP11)
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#define CLARA_CONFIG_CPP11_OVERRIDE
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#endif
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#if defined(CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR) && !defined(CLARA_CONFIG_NO_UNIQUE_PTR) && !defined(CLARA_CONFIG_CPP11_UNIQUE_PTR) && !defined(CLARA_CONFIG_NO_CPP11)
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#define CLARA_CONFIG_CPP11_UNIQUE_PTR
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#endif
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// noexcept support:
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#if defined(CLARA_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_NOEXCEPT)
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#define CLARA_NOEXCEPT noexcept
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# define CLARA_NOEXCEPT_IS(x) noexcept(x)
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#else
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#define CLARA_NOEXCEPT throw()
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# define CLARA_NOEXCEPT_IS(x)
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#endif
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// nullptr support
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#ifdef CLARA_CONFIG_CPP11_NULLPTR
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#define CLARA_NULL nullptr
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#else
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#define CLARA_NULL NULL
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#endif
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// override support
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#ifdef CLARA_CONFIG_CPP11_OVERRIDE
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#define CLARA_OVERRIDE override
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#else
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#define CLARA_OVERRIDE
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#endif
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// unique_ptr support
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#ifdef CLARA_CONFIG_CPP11_UNIQUE_PTR
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# define CLARA_AUTO_PTR( T ) std::unique_ptr<T>
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#else
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# define CLARA_AUTO_PTR( T ) std::auto_ptr<T>
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#endif
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#endif // TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
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// ----------- end of #include from clara_compilers.h -----------
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// ........... back in clara.h
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#include <map>
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#include <stdexcept>
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#include <memory>
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#if defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
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#define CLARA_PLATFORM_WINDOWS
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#endif
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// Use optional outer namespace
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#ifdef STITCH_CLARA_OPEN_NAMESPACE
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STITCH_CLARA_OPEN_NAMESPACE
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#endif
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namespace Clara {
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struct UnpositionalTag {};
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extern UnpositionalTag _;
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#ifdef CLARA_CONFIG_MAIN
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UnpositionalTag _;
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#endif
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namespace Detail {
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#ifdef CLARA_CONSOLE_WIDTH
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const unsigned int consoleWidth = CLARA_CONFIG_CONSOLE_WIDTH;
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#else
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const unsigned int consoleWidth = 80;
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#endif
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using namespace Tbc;
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inline bool startsWith( std::string const& str, std::string const& prefix ) {
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return str.size() >= prefix.size() && str.substr( 0, prefix.size() ) == prefix;
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}
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template<typename T> struct RemoveConstRef{ typedef T type; };
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template<typename T> struct RemoveConstRef<T&>{ typedef T type; };
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template<typename T> struct RemoveConstRef<T const&>{ typedef T type; };
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template<typename T> struct RemoveConstRef<T const>{ typedef T type; };
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template<typename T> struct IsBool { static const bool value = false; };
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template<> struct IsBool<bool> { static const bool value = true; };
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template<typename T>
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void convertInto( std::string const& _source, T& _dest ) {
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std::stringstream ss;
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ss << _source;
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ss >> _dest;
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if( ss.fail() )
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throw std::runtime_error( "Unable to convert " + _source + " to destination type" );
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}
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inline void convertInto( std::string const& _source, std::string& _dest ) {
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_dest = _source;
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}
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char toLowerCh(char c) {
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return static_cast<char>( std::tolower( c ) );
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}
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inline void convertInto( std::string const& _source, bool& _dest ) {
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std::string sourceLC = _source;
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std::transform( sourceLC.begin(), sourceLC.end(), sourceLC.begin(), toLowerCh );
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if( sourceLC == "y" || sourceLC == "1" || sourceLC == "true" || sourceLC == "yes" || sourceLC == "on" )
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_dest = true;
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else if( sourceLC == "n" || sourceLC == "0" || sourceLC == "false" || sourceLC == "no" || sourceLC == "off" )
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_dest = false;
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else
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throw std::runtime_error( "Expected a boolean value but did not recognise:\n '" + _source + "'" );
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}
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template<typename ConfigT>
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struct IArgFunction {
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virtual ~IArgFunction() {}
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#ifdef CLARA_CONFIG_CPP11_GENERATED_METHODS
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IArgFunction() = default;
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IArgFunction( IArgFunction const& ) = default;
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#endif
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virtual void set( ConfigT& config, std::string const& value ) const = 0;
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virtual bool takesArg() const = 0;
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virtual IArgFunction* clone() const = 0;
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};
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template<typename ConfigT>
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class BoundArgFunction {
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public:
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BoundArgFunction() : functionObj( CLARA_NULL ) {}
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BoundArgFunction( IArgFunction<ConfigT>* _functionObj ) : functionObj( _functionObj ) {}
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BoundArgFunction( BoundArgFunction const& other ) : functionObj( other.functionObj ? other.functionObj->clone() : CLARA_NULL ) {}
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BoundArgFunction& operator = ( BoundArgFunction const& other ) {
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IArgFunction<ConfigT>* newFunctionObj = other.functionObj ? other.functionObj->clone() : CLARA_NULL;
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delete functionObj;
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functionObj = newFunctionObj;
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return *this;
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}
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~BoundArgFunction() { delete functionObj; }
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void set( ConfigT& config, std::string const& value ) const {
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functionObj->set( config, value );
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}
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bool takesArg() const { return functionObj->takesArg(); }
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bool isSet() const {
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return functionObj != CLARA_NULL;
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}
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private:
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IArgFunction<ConfigT>* functionObj;
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};
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template<typename C>
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struct NullBinder : IArgFunction<C>{
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virtual void set( C&, std::string const& ) const {}
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virtual bool takesArg() const { return true; }
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virtual IArgFunction<C>* clone() const { return new NullBinder( *this ); }
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};
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template<typename C, typename M>
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struct BoundDataMember : IArgFunction<C>{
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BoundDataMember( M C::* _member ) : member( _member ) {}
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virtual void set( C& p, std::string const& stringValue ) const {
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convertInto( stringValue, p.*member );
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}
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virtual bool takesArg() const { return !IsBool<M>::value; }
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virtual IArgFunction<C>* clone() const { return new BoundDataMember( *this ); }
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M C::* member;
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};
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template<typename C, typename M>
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struct BoundUnaryMethod : IArgFunction<C>{
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BoundUnaryMethod( void (C::*_member)( M ) ) : member( _member ) {}
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virtual void set( C& p, std::string const& stringValue ) const {
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typename RemoveConstRef<M>::type value;
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convertInto( stringValue, value );
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(p.*member)( value );
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}
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virtual bool takesArg() const { return !IsBool<M>::value; }
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virtual IArgFunction<C>* clone() const { return new BoundUnaryMethod( *this ); }
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void (C::*member)( M );
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};
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template<typename C>
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struct BoundNullaryMethod : IArgFunction<C>{
|
|
BoundNullaryMethod( void (C::*_member)() ) : member( _member ) {}
|
|
virtual void set( C& p, std::string const& stringValue ) const {
|
|
bool value;
|
|
convertInto( stringValue, value );
|
|
if( value )
|
|
(p.*member)();
|
|
}
|
|
virtual bool takesArg() const { return false; }
|
|
virtual IArgFunction<C>* clone() const { return new BoundNullaryMethod( *this ); }
|
|
void (C::*member)();
|
|
};
|
|
|
|
template<typename C>
|
|
struct BoundUnaryFunction : IArgFunction<C>{
|
|
BoundUnaryFunction( void (*_function)( C& ) ) : function( _function ) {}
|
|
virtual void set( C& obj, std::string const& stringValue ) const {
|
|
bool value;
|
|
convertInto( stringValue, value );
|
|
if( value )
|
|
function( obj );
|
|
}
|
|
virtual bool takesArg() const { return false; }
|
|
virtual IArgFunction<C>* clone() const { return new BoundUnaryFunction( *this ); }
|
|
void (*function)( C& );
|
|
};
|
|
|
|
template<typename C, typename T>
|
|
struct BoundBinaryFunction : IArgFunction<C>{
|
|
BoundBinaryFunction( void (*_function)( C&, T ) ) : function( _function ) {}
|
|
virtual void set( C& obj, std::string const& stringValue ) const {
|
|
typename RemoveConstRef<T>::type value;
|
|
convertInto( stringValue, value );
|
|
function( obj, value );
|
|
}
|
|
virtual bool takesArg() const { return !IsBool<T>::value; }
|
|
virtual IArgFunction<C>* clone() const { return new BoundBinaryFunction( *this ); }
|
|
void (*function)( C&, T );
|
|
};
|
|
|
|
} // namespace Detail
|
|
|
|
inline std::vector<std::string> argsToVector( int argc, char const* const* const argv ) {
|
|
std::vector<std::string> args( static_cast<std::size_t>( argc ) );
|
|
for( std::size_t i = 0; i < static_cast<std::size_t>( argc ); ++i )
|
|
args[i] = argv[i];
|
|
|
|
return args;
|
|
}
|
|
|
|
class Parser {
|
|
enum Mode { None, MaybeShortOpt, SlashOpt, ShortOpt, LongOpt, Positional };
|
|
Mode mode;
|
|
std::size_t from;
|
|
bool inQuotes;
|
|
public:
|
|
|
|
struct Token {
|
|
enum Type { Positional, ShortOpt, LongOpt };
|
|
Token( Type _type, std::string const& _data ) : type( _type ), data( _data ) {}
|
|
Type type;
|
|
std::string data;
|
|
};
|
|
|
|
Parser() : mode( None ), from( 0 ), inQuotes( false ){}
|
|
|
|
void parseIntoTokens( std::vector<std::string> const& args, std::vector<Token>& tokens ) {
|
|
const std::string doubleDash = "--";
|
|
for( std::size_t i = 1; i < args.size() && args[i] != doubleDash; ++i )
|
|
parseIntoTokens( args[i], tokens);
|
|
}
|
|
|
|
void parseIntoTokens( std::string const& arg, std::vector<Token>& tokens ) {
|
|
for( std::size_t i = 0; i < arg.size(); ++i ) {
|
|
char c = arg[i];
|
|
if( c == '"' )
|
|
inQuotes = !inQuotes;
|
|
mode = handleMode( i, c, arg, tokens );
|
|
}
|
|
mode = handleMode( arg.size(), '\0', arg, tokens );
|
|
}
|
|
Mode handleMode( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
|
|
switch( mode ) {
|
|
case None: return handleNone( i, c );
|
|
case MaybeShortOpt: return handleMaybeShortOpt( i, c );
|
|
case ShortOpt:
|
|
case LongOpt:
|
|
case SlashOpt: return handleOpt( i, c, arg, tokens );
|
|
case Positional: return handlePositional( i, c, arg, tokens );
|
|
default: throw std::logic_error( "Unknown mode" );
|
|
}
|
|
}
|
|
|
|
Mode handleNone( std::size_t i, char c ) {
|
|
if( inQuotes ) {
|
|
from = i;
|
|
return Positional;
|
|
}
|
|
switch( c ) {
|
|
case '-': return MaybeShortOpt;
|
|
#ifdef CLARA_PLATFORM_WINDOWS
|
|
case '/': from = i+1; return SlashOpt;
|
|
#endif
|
|
default: from = i; return Positional;
|
|
}
|
|
}
|
|
Mode handleMaybeShortOpt( std::size_t i, char c ) {
|
|
switch( c ) {
|
|
case '-': from = i+1; return LongOpt;
|
|
default: from = i; return ShortOpt;
|
|
}
|
|
}
|
|
|
|
Mode handleOpt( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
|
|
if( std::string( ":=\0", 3 ).find( c ) == std::string::npos )
|
|
return mode;
|
|
|
|
std::string optName = arg.substr( from, i-from );
|
|
if( mode == ShortOpt )
|
|
for( std::size_t j = 0; j < optName.size(); ++j )
|
|
tokens.push_back( Token( Token::ShortOpt, optName.substr( j, 1 ) ) );
|
|
else if( mode == SlashOpt && optName.size() == 1 )
|
|
tokens.push_back( Token( Token::ShortOpt, optName ) );
|
|
else
|
|
tokens.push_back( Token( Token::LongOpt, optName ) );
|
|
return None;
|
|
}
|
|
Mode handlePositional( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
|
|
if( inQuotes || std::string( "\0", 1 ).find( c ) == std::string::npos )
|
|
return mode;
|
|
|
|
std::string data = arg.substr( from, i-from );
|
|
tokens.push_back( Token( Token::Positional, data ) );
|
|
return None;
|
|
}
|
|
};
|
|
|
|
template<typename ConfigT>
|
|
struct CommonArgProperties {
|
|
CommonArgProperties() {}
|
|
CommonArgProperties( Detail::BoundArgFunction<ConfigT> const& _boundField ) : boundField( _boundField ) {}
|
|
|
|
Detail::BoundArgFunction<ConfigT> boundField;
|
|
std::string description;
|
|
std::string detail;
|
|
std::string placeholder; // Only value if boundField takes an arg
|
|
|
|
bool takesArg() const {
|
|
return !placeholder.empty();
|
|
}
|
|
void validate() const {
|
|
if( !boundField.isSet() )
|
|
throw std::logic_error( "option not bound" );
|
|
}
|
|
};
|
|
struct OptionArgProperties {
|
|
std::vector<std::string> shortNames;
|
|
std::string longName;
|
|
|
|
bool hasShortName( std::string const& shortName ) const {
|
|
return std::find( shortNames.begin(), shortNames.end(), shortName ) != shortNames.end();
|
|
}
|
|
bool hasLongName( std::string const& _longName ) const {
|
|
return _longName == longName;
|
|
}
|
|
};
|
|
struct PositionalArgProperties {
|
|
PositionalArgProperties() : position( -1 ) {}
|
|
int position; // -1 means non-positional (floating)
|
|
|
|
bool isFixedPositional() const {
|
|
return position != -1;
|
|
}
|
|
};
|
|
|
|
template<typename ConfigT>
|
|
class CommandLine {
|
|
|
|
struct Arg : CommonArgProperties<ConfigT>, OptionArgProperties, PositionalArgProperties {
|
|
Arg() {}
|
|
Arg( Detail::BoundArgFunction<ConfigT> const& _boundField ) : CommonArgProperties<ConfigT>( _boundField ) {}
|
|
|
|
using CommonArgProperties<ConfigT>::placeholder; // !TBD
|
|
|
|
std::string dbgName() const {
|
|
if( !longName.empty() )
|
|
return "--" + longName;
|
|
if( !shortNames.empty() )
|
|
return "-" + shortNames[0];
|
|
return "positional args";
|
|
}
|
|
std::string commands() const {
|
|
std::ostringstream oss;
|
|
bool first = true;
|
|
std::vector<std::string>::const_iterator it = shortNames.begin(), itEnd = shortNames.end();
|
|
for(; it != itEnd; ++it ) {
|
|
if( first )
|
|
first = false;
|
|
else
|
|
oss << ", ";
|
|
oss << "-" << *it;
|
|
}
|
|
if( !longName.empty() ) {
|
|
if( !first )
|
|
oss << ", ";
|
|
oss << "--" << longName;
|
|
}
|
|
if( !placeholder.empty() )
|
|
oss << " <" << placeholder << ">";
|
|
return oss.str();
|
|
}
|
|
};
|
|
|
|
typedef CLARA_AUTO_PTR( Arg ) ArgAutoPtr;
|
|
|
|
friend void addOptName( Arg& arg, std::string const& optName )
|
|
{
|
|
if( optName.empty() )
|
|
return;
|
|
if( Detail::startsWith( optName, "--" ) ) {
|
|
if( !arg.longName.empty() )
|
|
throw std::logic_error( "Only one long opt may be specified. '"
|
|
+ arg.longName
|
|
+ "' already specified, now attempting to add '"
|
|
+ optName + "'" );
|
|
arg.longName = optName.substr( 2 );
|
|
}
|
|
else if( Detail::startsWith( optName, "-" ) )
|
|
arg.shortNames.push_back( optName.substr( 1 ) );
|
|
else
|
|
throw std::logic_error( "option must begin with - or --. Option was: '" + optName + "'" );
|
|
}
|
|
friend void setPositionalArg( Arg& arg, int position )
|
|
{
|
|
arg.position = position;
|
|
}
|
|
|
|
|
|
class ArgBuilder {
|
|
public:
|
|
ArgBuilder( Arg* arg ) : m_arg( arg ) {}
|
|
|
|
// Bind a non-boolean data member (requires placeholder string)
|
|
template<typename C, typename M>
|
|
void bind( M C::* field, std::string const& placeholder ) {
|
|
m_arg->boundField = new Detail::BoundDataMember<C,M>( field );
|
|
m_arg->placeholder = placeholder;
|
|
}
|
|
// Bind a boolean data member (no placeholder required)
|
|
template<typename C>
|
|
void bind( bool C::* field ) {
|
|
m_arg->boundField = new Detail::BoundDataMember<C,bool>( field );
|
|
}
|
|
|
|
// Bind a method taking a single, non-boolean argument (requires a placeholder string)
|
|
template<typename C, typename M>
|
|
void bind( void (C::* unaryMethod)( M ), std::string const& placeholder ) {
|
|
m_arg->boundField = new Detail::BoundUnaryMethod<C,M>( unaryMethod );
|
|
m_arg->placeholder = placeholder;
|
|
}
|
|
|
|
// Bind a method taking a single, boolean argument (no placeholder string required)
|
|
template<typename C>
|
|
void bind( void (C::* unaryMethod)( bool ) ) {
|
|
m_arg->boundField = new Detail::BoundUnaryMethod<C,bool>( unaryMethod );
|
|
}
|
|
|
|
// Bind a method that takes no arguments (will be called if opt is present)
|
|
template<typename C>
|
|
void bind( void (C::* nullaryMethod)() ) {
|
|
m_arg->boundField = new Detail::BoundNullaryMethod<C>( nullaryMethod );
|
|
}
|
|
|
|
// Bind a free function taking a single argument - the object to operate on (no placeholder string required)
|
|
template<typename C>
|
|
void bind( void (* unaryFunction)( C& ) ) {
|
|
m_arg->boundField = new Detail::BoundUnaryFunction<C>( unaryFunction );
|
|
}
|
|
|
|
// Bind a free function taking a single argument - the object to operate on (requires a placeholder string)
|
|
template<typename C, typename T>
|
|
void bind( void (* binaryFunction)( C&, T ), std::string const& placeholder ) {
|
|
m_arg->boundField = new Detail::BoundBinaryFunction<C, T>( binaryFunction );
|
|
m_arg->placeholder = placeholder;
|
|
}
|
|
|
|
ArgBuilder& describe( std::string const& description ) {
|
|
m_arg->description = description;
|
|
return *this;
|
|
}
|
|
ArgBuilder& detail( std::string const& detail ) {
|
|
m_arg->detail = detail;
|
|
return *this;
|
|
}
|
|
|
|
protected:
|
|
Arg* m_arg;
|
|
};
|
|
|
|
class OptBuilder : public ArgBuilder {
|
|
public:
|
|
OptBuilder( Arg* arg ) : ArgBuilder( arg ) {}
|
|
OptBuilder( OptBuilder& other ) : ArgBuilder( other ) {}
|
|
|
|
OptBuilder& operator[]( std::string const& optName ) {
|
|
addOptName( *ArgBuilder::m_arg, optName );
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
public:
|
|
|
|
CommandLine()
|
|
: m_boundProcessName( new Detail::NullBinder<ConfigT>() ),
|
|
m_highestSpecifiedArgPosition( 0 ),
|
|
m_throwOnUnrecognisedTokens( false )
|
|
{}
|
|
CommandLine( CommandLine const& other )
|
|
: m_boundProcessName( other.m_boundProcessName ),
|
|
m_options ( other.m_options ),
|
|
m_positionalArgs( other.m_positionalArgs ),
|
|
m_highestSpecifiedArgPosition( other.m_highestSpecifiedArgPosition ),
|
|
m_throwOnUnrecognisedTokens( other.m_throwOnUnrecognisedTokens )
|
|
{
|
|
if( other.m_floatingArg.get() )
|
|
m_floatingArg.reset( new Arg( *other.m_floatingArg ) );
|
|
}
|
|
|
|
CommandLine& setThrowOnUnrecognisedTokens( bool shouldThrow = true ) {
|
|
m_throwOnUnrecognisedTokens = shouldThrow;
|
|
return *this;
|
|
}
|
|
|
|
|
|
OptBuilder operator[]( std::string const& optName ) {
|
|
m_options.push_back( Arg() );
|
|
addOptName( m_options.back(), optName );
|
|
OptBuilder builder( &m_options.back() );
|
|
return builder;
|
|
}
|
|
|
|
ArgBuilder operator[]( int position ) {
|
|
m_positionalArgs.insert( std::make_pair( position, Arg() ) );
|
|
if( position > m_highestSpecifiedArgPosition )
|
|
m_highestSpecifiedArgPosition = position;
|
|
setPositionalArg( m_positionalArgs[position], position );
|
|
ArgBuilder builder( &m_positionalArgs[position] );
|
|
return builder;
|
|
}
|
|
|
|
// Invoke this with the _ instance
|
|
ArgBuilder operator[]( UnpositionalTag ) {
|
|
if( m_floatingArg.get() )
|
|
throw std::logic_error( "Only one unpositional argument can be added" );
|
|
m_floatingArg.reset( new Arg() );
|
|
ArgBuilder builder( m_floatingArg.get() );
|
|
return builder;
|
|
}
|
|
|
|
template<typename C, typename M>
|
|
void bindProcessName( M C::* field ) {
|
|
m_boundProcessName = new Detail::BoundDataMember<C,M>( field );
|
|
}
|
|
template<typename C, typename M>
|
|
void bindProcessName( void (C::*_unaryMethod)( M ) ) {
|
|
m_boundProcessName = new Detail::BoundUnaryMethod<C,M>( _unaryMethod );
|
|
}
|
|
|
|
void optUsage( std::ostream& os, std::size_t indent = 0, std::size_t width = Detail::consoleWidth ) const {
|
|
typename std::vector<Arg>::const_iterator itBegin = m_options.begin(), itEnd = m_options.end(), it;
|
|
std::size_t maxWidth = 0;
|
|
for( it = itBegin; it != itEnd; ++it )
|
|
maxWidth = (std::max)( maxWidth, it->commands().size() );
|
|
|
|
for( it = itBegin; it != itEnd; ++it ) {
|
|
Detail::Text usage( it->commands(), Detail::TextAttributes()
|
|
.setWidth( maxWidth+indent )
|
|
.setIndent( indent ) );
|
|
Detail::Text desc( it->description, Detail::TextAttributes()
|
|
.setWidth( width - maxWidth - 3 ) );
|
|
|
|
for( std::size_t i = 0; i < (std::max)( usage.size(), desc.size() ); ++i ) {
|
|
std::string usageCol = i < usage.size() ? usage[i] : "";
|
|
os << usageCol;
|
|
|
|
if( i < desc.size() && !desc[i].empty() )
|
|
os << std::string( indent + 2 + maxWidth - usageCol.size(), ' ' )
|
|
<< desc[i];
|
|
os << "\n";
|
|
}
|
|
}
|
|
}
|
|
std::string optUsage() const {
|
|
std::ostringstream oss;
|
|
optUsage( oss );
|
|
return oss.str();
|
|
}
|
|
|
|
void argSynopsis( std::ostream& os ) const {
|
|
for( int i = 1; i <= m_highestSpecifiedArgPosition; ++i ) {
|
|
if( i > 1 )
|
|
os << " ";
|
|
typename std::map<int, Arg>::const_iterator it = m_positionalArgs.find( i );
|
|
if( it != m_positionalArgs.end() )
|
|
os << "<" << it->second.placeholder << ">";
|
|
else if( m_floatingArg.get() )
|
|
os << "<" << m_floatingArg->placeholder << ">";
|
|
else
|
|
throw std::logic_error( "non consecutive positional arguments with no floating args" );
|
|
}
|
|
// !TBD No indication of mandatory args
|
|
if( m_floatingArg.get() ) {
|
|
if( m_highestSpecifiedArgPosition > 1 )
|
|
os << " ";
|
|
os << "[<" << m_floatingArg->placeholder << "> ...]";
|
|
}
|
|
}
|
|
std::string argSynopsis() const {
|
|
std::ostringstream oss;
|
|
argSynopsis( oss );
|
|
return oss.str();
|
|
}
|
|
|
|
void usage( std::ostream& os, std::string const& procName ) const {
|
|
validate();
|
|
os << "usage:\n " << procName << " ";
|
|
argSynopsis( os );
|
|
if( !m_options.empty() ) {
|
|
os << " [options]\n\nwhere options are: \n";
|
|
optUsage( os, 2 );
|
|
}
|
|
os << "\n";
|
|
}
|
|
std::string usage( std::string const& procName ) const {
|
|
std::ostringstream oss;
|
|
usage( oss, procName );
|
|
return oss.str();
|
|
}
|
|
|
|
ConfigT parse( std::vector<std::string> const& args ) const {
|
|
ConfigT config;
|
|
parseInto( args, config );
|
|
return config;
|
|
}
|
|
|
|
std::vector<Parser::Token> parseInto( std::vector<std::string> const& args, ConfigT& config ) const {
|
|
std::string processName = args.empty() ? std::string() : args[0];
|
|
std::size_t lastSlash = processName.find_last_of( "/\\" );
|
|
if( lastSlash != std::string::npos )
|
|
processName = processName.substr( lastSlash+1 );
|
|
m_boundProcessName.set( config, processName );
|
|
std::vector<Parser::Token> tokens;
|
|
Parser parser;
|
|
parser.parseIntoTokens( args, tokens );
|
|
return populate( tokens, config );
|
|
}
|
|
|
|
std::vector<Parser::Token> populate( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
|
|
validate();
|
|
std::vector<Parser::Token> unusedTokens = populateOptions( tokens, config );
|
|
unusedTokens = populateFixedArgs( unusedTokens, config );
|
|
unusedTokens = populateFloatingArgs( unusedTokens, config );
|
|
return unusedTokens;
|
|
}
|
|
|
|
std::vector<Parser::Token> populateOptions( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
|
|
std::vector<Parser::Token> unusedTokens;
|
|
std::vector<std::string> errors;
|
|
for( std::size_t i = 0; i < tokens.size(); ++i ) {
|
|
Parser::Token const& token = tokens[i];
|
|
typename std::vector<Arg>::const_iterator it = m_options.begin(), itEnd = m_options.end();
|
|
for(; it != itEnd; ++it ) {
|
|
Arg const& arg = *it;
|
|
|
|
try {
|
|
if( ( token.type == Parser::Token::ShortOpt && arg.hasShortName( token.data ) ) ||
|
|
( token.type == Parser::Token::LongOpt && arg.hasLongName( token.data ) ) ) {
|
|
if( arg.takesArg() ) {
|
|
if( i == tokens.size()-1 || tokens[i+1].type != Parser::Token::Positional )
|
|
errors.push_back( "Expected argument to option: " + token.data );
|
|
else
|
|
arg.boundField.set( config, tokens[++i].data );
|
|
}
|
|
else {
|
|
arg.boundField.set( config, "true" );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
catch( std::exception& ex ) {
|
|
errors.push_back( std::string( ex.what() ) + "\n- while parsing: (" + arg.commands() + ")" );
|
|
}
|
|
}
|
|
if( it == itEnd ) {
|
|
if( token.type == Parser::Token::Positional || !m_throwOnUnrecognisedTokens )
|
|
unusedTokens.push_back( token );
|
|
else if( errors.empty() && m_throwOnUnrecognisedTokens )
|
|
errors.push_back( "unrecognised option: " + token.data );
|
|
}
|
|
}
|
|
if( !errors.empty() ) {
|
|
std::ostringstream oss;
|
|
for( std::vector<std::string>::const_iterator it = errors.begin(), itEnd = errors.end();
|
|
it != itEnd;
|
|
++it ) {
|
|
if( it != errors.begin() )
|
|
oss << "\n";
|
|
oss << *it;
|
|
}
|
|
throw std::runtime_error( oss.str() );
|
|
}
|
|
return unusedTokens;
|
|
}
|
|
std::vector<Parser::Token> populateFixedArgs( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
|
|
std::vector<Parser::Token> unusedTokens;
|
|
int position = 1;
|
|
for( std::size_t i = 0; i < tokens.size(); ++i ) {
|
|
Parser::Token const& token = tokens[i];
|
|
typename std::map<int, Arg>::const_iterator it = m_positionalArgs.find( position );
|
|
if( it != m_positionalArgs.end() )
|
|
it->second.boundField.set( config, token.data );
|
|
else
|
|
unusedTokens.push_back( token );
|
|
if( token.type == Parser::Token::Positional )
|
|
position++;
|
|
}
|
|
return unusedTokens;
|
|
}
|
|
std::vector<Parser::Token> populateFloatingArgs( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
|
|
if( !m_floatingArg.get() )
|
|
return tokens;
|
|
std::vector<Parser::Token> unusedTokens;
|
|
for( std::size_t i = 0; i < tokens.size(); ++i ) {
|
|
Parser::Token const& token = tokens[i];
|
|
if( token.type == Parser::Token::Positional )
|
|
m_floatingArg->boundField.set( config, token.data );
|
|
else
|
|
unusedTokens.push_back( token );
|
|
}
|
|
return unusedTokens;
|
|
}
|
|
|
|
void validate() const
|
|
{
|
|
if( m_options.empty() && m_positionalArgs.empty() && !m_floatingArg.get() )
|
|
throw std::logic_error( "No options or arguments specified" );
|
|
|
|
for( typename std::vector<Arg>::const_iterator it = m_options.begin(),
|
|
itEnd = m_options.end();
|
|
it != itEnd; ++it )
|
|
it->validate();
|
|
}
|
|
|
|
private:
|
|
Detail::BoundArgFunction<ConfigT> m_boundProcessName;
|
|
std::vector<Arg> m_options;
|
|
std::map<int, Arg> m_positionalArgs;
|
|
ArgAutoPtr m_floatingArg;
|
|
int m_highestSpecifiedArgPosition;
|
|
bool m_throwOnUnrecognisedTokens;
|
|
};
|
|
|
|
} // end namespace Clara
|
|
|
|
|
|
STITCH_CLARA_CLOSE_NAMESPACE
|
|
#undef STITCH_CLARA_OPEN_NAMESPACE
|
|
#undef STITCH_CLARA_CLOSE_NAMESPACE
|
|
|
|
|
|
#endif // TWOBLUECUBES_CLARA_H_INCLUDED
|