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Diffstat (limited to '3rdParty/Boost/boost/regex/v4/basic_regex.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/regex/v4/basic_regex.hpp | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/regex/v4/basic_regex.hpp b/3rdParty/Boost/boost/regex/v4/basic_regex.hpp new file mode 100644 index 0000000..cb9ff3c --- /dev/null +++ b/3rdParty/Boost/boost/regex/v4/basic_regex.hpp @@ -0,0 +1,669 @@ +/* + * + * Copyright (c) 1998-2004 + * John Maddock + * + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + */ + + /* + * LOCATION: see http://www.boost.org/ for most recent version. + * FILE basic_regex.cpp + * VERSION see <boost/version.hpp> + * DESCRIPTION: Declares template class basic_regex. + */ + +#ifndef BOOST_REGEX_V4_BASIC_REGEX_HPP +#define BOOST_REGEX_V4_BASIC_REGEX_HPP + +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable: 4103) +#endif +#ifdef BOOST_HAS_ABI_HEADERS +# include BOOST_ABI_PREFIX +#endif +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif + +namespace boost{ +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable : 4251 4231 4660 4800) +#endif + +namespace re_detail{ + +// +// forward declaration, we will need this one later: +// +template <class charT, class traits> +class basic_regex_parser; + +// +// class regex_data: +// represents the data we wish to expose to the matching algorithms. +// +template <class charT, class traits> +struct regex_data +{ + typedef regex_constants::syntax_option_type flag_type; + typedef std::size_t size_type; + + regex_data(const ::boost::shared_ptr< + ::boost::regex_traits_wrapper<traits> >& t) + : m_ptraits(t), m_expression(0), m_expression_len(0) {} + regex_data() + : m_ptraits(new ::boost::regex_traits_wrapper<traits>()), m_expression(0), m_expression_len(0) {} + + ::boost::shared_ptr< + ::boost::regex_traits_wrapper<traits> + > m_ptraits; // traits class instance + flag_type m_flags; // flags with which we were compiled + int m_status; // error code (0 implies OK). + const charT* m_expression; // the original expression + std::ptrdiff_t m_expression_len; // the length of the original expression + size_type m_mark_count; // the number of marked sub-expressions + re_detail::re_syntax_base* m_first_state; // the first state of the machine + unsigned m_restart_type; // search optimisation type + unsigned char m_startmap[1 << CHAR_BIT]; // which characters can start a match + unsigned int m_can_be_null; // whether we can match a null string + re_detail::raw_storage m_data; // the buffer in which our states are constructed + typename traits::char_class_type m_word_mask; // mask used to determine if a character is a word character + std::vector< + std::pair< + std::size_t, std::size_t> > m_subs; // Position of sub-expressions within the *string*. +}; +// +// class basic_regex_implementation +// pimpl implementation class for basic_regex. +// +template <class charT, class traits> +class basic_regex_implementation + : public regex_data<charT, traits> +{ +public: + typedef regex_constants::syntax_option_type flag_type; + typedef std::ptrdiff_t difference_type; + typedef std::size_t size_type; + typedef typename traits::locale_type locale_type; + typedef const charT* const_iterator; + + basic_regex_implementation(){} + basic_regex_implementation(const ::boost::shared_ptr< + ::boost::regex_traits_wrapper<traits> >& t) + : regex_data<charT, traits>(t) {} + void assign(const charT* arg_first, + const charT* arg_last, + flag_type f) + { + regex_data<charT, traits>* pdat = this; + basic_regex_parser<charT, traits> parser(pdat); + parser.parse(arg_first, arg_last, f); + } + + locale_type BOOST_REGEX_CALL imbue(locale_type l) + { + return this->m_ptraits->imbue(l); + } + locale_type BOOST_REGEX_CALL getloc()const + { + return this->m_ptraits->getloc(); + } + std::basic_string<charT> BOOST_REGEX_CALL str()const + { + std::basic_string<charT> result; + if(this->m_status == 0) + result = std::basic_string<charT>(this->m_expression, this->m_expression_len); + return result; + } + const_iterator BOOST_REGEX_CALL expression()const + { + return this->m_expression; + } + std::pair<const_iterator, const_iterator> BOOST_REGEX_CALL subexpression(std::size_t n)const + { + if(n == 0) + throw std::out_of_range("0 is not a valid subexpression index."); + const std::pair<std::size_t, std::size_t>& pi = this->m_subs.at(n - 1); + std::pair<const_iterator, const_iterator> p(expression() + pi.first, expression() + pi.second); + return p; + } + // + // begin, end: + const_iterator BOOST_REGEX_CALL begin()const + { + return (!this->m_status ? 0 : this->m_expression); + } + const_iterator BOOST_REGEX_CALL end()const + { + return (!this->m_status ? 0 : this->m_expression + this->m_expression_len); + } + flag_type BOOST_REGEX_CALL flags()const + { + return this->m_flags; + } + size_type BOOST_REGEX_CALL size()const + { + return this->m_expression_len; + } + int BOOST_REGEX_CALL status()const + { + return this->m_status; + } + size_type BOOST_REGEX_CALL mark_count()const + { + return this->m_mark_count; + } + const re_detail::re_syntax_base* get_first_state()const + { + return this->m_first_state; + } + unsigned get_restart_type()const + { + return this->m_restart_type; + } + const unsigned char* get_map()const + { + return this->m_startmap; + } + const ::boost::regex_traits_wrapper<traits>& get_traits()const + { + return *(this->m_ptraits); + } + bool can_be_null()const + { + return this->m_can_be_null; + } + const regex_data<charT, traits>& get_data()const + { + basic_regex_implementation<charT, traits> const* p = this; + return *static_cast<const regex_data<charT, traits>*>(p); + } +}; + +} // namespace re_detail +// +// class basic_regex: +// represents the compiled +// regular expression: +// + +#ifdef BOOST_REGEX_NO_FWD +template <class charT, class traits = regex_traits<charT> > +#else +template <class charT, class traits > +#endif +class basic_regex : public regbase +{ +public: + // typedefs: + typedef std::size_t traits_size_type; + typedef typename traits::string_type traits_string_type; + typedef charT char_type; + typedef traits traits_type; + + typedef charT value_type; + typedef charT& reference; + typedef const charT& const_reference; + typedef const charT* const_iterator; + typedef const_iterator iterator; + typedef std::ptrdiff_t difference_type; + typedef std::size_t size_type; + typedef regex_constants::syntax_option_type flag_type; + // locale_type + // placeholder for actual locale type used by the + // traits class to localise *this. + typedef typename traits::locale_type locale_type; + +public: + explicit basic_regex(){} + explicit basic_regex(const charT* p, flag_type f = regex_constants::normal) + { + assign(p, f); + } + basic_regex(const charT* p1, const charT* p2, flag_type f = regex_constants::normal) + { + assign(p1, p2, f); + } + basic_regex(const charT* p, size_type len, flag_type f) + { + assign(p, len, f); + } + basic_regex(const basic_regex& that) + : m_pimpl(that.m_pimpl) {} + ~basic_regex(){} + basic_regex& BOOST_REGEX_CALL operator=(const basic_regex& that) + { + return assign(that); + } + basic_regex& BOOST_REGEX_CALL operator=(const charT* ptr) + { + return assign(ptr); + } + + // + // assign: + basic_regex& assign(const basic_regex& that) + { + m_pimpl = that.m_pimpl; + return *this; + } + basic_regex& assign(const charT* p, flag_type f = regex_constants::normal) + { + return assign(p, p + traits::length(p), f); + } + basic_regex& assign(const charT* p, size_type len, flag_type f) + { + return assign(p, p + len, f); + } +private: + basic_regex& do_assign(const charT* p1, + const charT* p2, + flag_type f); +public: + basic_regex& assign(const charT* p1, + const charT* p2, + flag_type f = regex_constants::normal) + { + return do_assign(p1, p2, f); + } +#if !defined(BOOST_NO_MEMBER_TEMPLATES) + + template <class ST, class SA> + unsigned int BOOST_REGEX_CALL set_expression(const std::basic_string<charT, ST, SA>& p, flag_type f = regex_constants::normal) + { + return set_expression(p.data(), p.data() + p.size(), f); + } + + template <class ST, class SA> + explicit basic_regex(const std::basic_string<charT, ST, SA>& p, flag_type f = regex_constants::normal) + { + assign(p, f); + } + + template <class InputIterator> + basic_regex(InputIterator arg_first, InputIterator arg_last, flag_type f = regex_constants::normal) + { + typedef typename traits::string_type seq_type; + seq_type a(arg_first, arg_last); + if(a.size()) + assign(&*a.begin(), &*a.begin() + a.size(), f); + else + assign(static_cast<const charT*>(0), static_cast<const charT*>(0), f); + } + + template <class ST, class SA> + basic_regex& BOOST_REGEX_CALL operator=(const std::basic_string<charT, ST, SA>& p) + { + return assign(p.data(), p.data() + p.size(), regex_constants::normal); + } + + template <class string_traits, class A> + basic_regex& BOOST_REGEX_CALL assign( + const std::basic_string<charT, string_traits, A>& s, + flag_type f = regex_constants::normal) + { + return assign(s.data(), s.data() + s.size(), f); + } + + template <class InputIterator> + basic_regex& BOOST_REGEX_CALL assign(InputIterator arg_first, + InputIterator arg_last, + flag_type f = regex_constants::normal) + { + typedef typename traits::string_type seq_type; + seq_type a(arg_first, arg_last); + if(a.size()) + { + const charT* p1 = &*a.begin(); + const charT* p2 = &*a.begin() + a.size(); + return assign(p1, p2, f); + } + return assign(static_cast<const charT*>(0), static_cast<const charT*>(0), f); + } +#else + unsigned int BOOST_REGEX_CALL set_expression(const std::basic_string<charT>& p, flag_type f = regex_constants::normal) + { + return set_expression(p.data(), p.data() + p.size(), f); + } + + basic_regex(const std::basic_string<charT>& p, flag_type f = regex_constants::normal) + { + assign(p, f); + } + + basic_regex& BOOST_REGEX_CALL operator=(const std::basic_string<charT>& p) + { + return assign(p.data(), p.data() + p.size(), regex_constants::normal); + } + + basic_regex& BOOST_REGEX_CALL assign( + const std::basic_string<charT>& s, + flag_type f = regex_constants::normal) + { + return assign(s.data(), s.data() + s.size(), f); + } + +#endif + + // + // locale: + locale_type BOOST_REGEX_CALL imbue(locale_type l); + locale_type BOOST_REGEX_CALL getloc()const + { + return m_pimpl.get() ? m_pimpl->getloc() : locale_type(); + } + // + // getflags: + // retained for backwards compatibility only, "flags" + // is now the preferred name: + flag_type BOOST_REGEX_CALL getflags()const + { + return flags(); + } + flag_type BOOST_REGEX_CALL flags()const + { + return m_pimpl.get() ? m_pimpl->flags() : 0; + } + // + // str: + std::basic_string<charT> BOOST_REGEX_CALL str()const + { + return m_pimpl.get() ? m_pimpl->str() : std::basic_string<charT>(); + } + // + // begin, end, subexpression: + std::pair<const_iterator, const_iterator> BOOST_REGEX_CALL subexpression(std::size_t n)const + { + if(!m_pimpl.get()) + throw std::logic_error("Can't access subexpressions in an invalid regex."); + return m_pimpl->subexpression(n); + } + const_iterator BOOST_REGEX_CALL begin()const + { + return (m_pimpl.get() ? m_pimpl->begin() : 0); + } + const_iterator BOOST_REGEX_CALL end()const + { + return (m_pimpl.get() ? m_pimpl->end() : 0); + } + // + // swap: + void BOOST_REGEX_CALL swap(basic_regex& that)throw() + { + m_pimpl.swap(that.m_pimpl); + } + // + // size: + size_type BOOST_REGEX_CALL size()const + { + return (m_pimpl.get() ? m_pimpl->size() : 0); + } + // + // max_size: + size_type BOOST_REGEX_CALL max_size()const + { + return UINT_MAX; + } + // + // empty: + bool BOOST_REGEX_CALL empty()const + { + return (m_pimpl.get() ? 0 != m_pimpl->status() : true); + } + + size_type BOOST_REGEX_CALL mark_count()const + { + return (m_pimpl.get() ? m_pimpl->mark_count() : 0); + } + + int status()const + { + return (m_pimpl.get() ? m_pimpl->status() : regex_constants::error_empty); + } + + int BOOST_REGEX_CALL compare(const basic_regex& that) const + { + if(m_pimpl.get() == that.m_pimpl.get()) + return 0; + if(!m_pimpl.get()) + return -1; + if(!that.m_pimpl.get()) + return 1; + if(status() != that.status()) + return status() - that.status(); + if(flags() != that.flags()) + return flags() - that.flags(); + return str().compare(that.str()); + } + bool BOOST_REGEX_CALL operator==(const basic_regex& e)const + { + return compare(e) == 0; + } + bool BOOST_REGEX_CALL operator != (const basic_regex& e)const + { + return compare(e) != 0; + } + bool BOOST_REGEX_CALL operator<(const basic_regex& e)const + { + return compare(e) < 0; + } + bool BOOST_REGEX_CALL operator>(const basic_regex& e)const + { + return compare(e) > 0; + } + bool BOOST_REGEX_CALL operator<=(const basic_regex& e)const + { + return compare(e) <= 0; + } + bool BOOST_REGEX_CALL operator>=(const basic_regex& e)const + { + return compare(e) >= 0; + } + + // + // The following are deprecated as public interfaces + // but are available for compatibility with earlier versions. + const charT* BOOST_REGEX_CALL expression()const + { + return (m_pimpl.get() && !m_pimpl->status() ? m_pimpl->expression() : 0); + } + unsigned int BOOST_REGEX_CALL set_expression(const charT* p1, const charT* p2, flag_type f = regex_constants::normal) + { + assign(p1, p2, f | regex_constants::no_except); + return status(); + } + unsigned int BOOST_REGEX_CALL set_expression(const charT* p, flag_type f = regex_constants::normal) + { + assign(p, f | regex_constants::no_except); + return status(); + } + unsigned int BOOST_REGEX_CALL error_code()const + { + return status(); + } + // + // private access methods: + // + const re_detail::re_syntax_base* get_first_state()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->get_first_state(); + } + unsigned get_restart_type()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->get_restart_type(); + } + const unsigned char* get_map()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->get_map(); + } + const ::boost::regex_traits_wrapper<traits>& get_traits()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->get_traits(); + } + bool can_be_null()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->can_be_null(); + } + const re_detail::regex_data<charT, traits>& get_data()const + { + BOOST_ASSERT(0 != m_pimpl.get()); + return m_pimpl->get_data(); + } + +private: + shared_ptr<re_detail::basic_regex_implementation<charT, traits> > m_pimpl; +}; + +// +// out of line members; +// these are the only members that mutate the basic_regex object, +// and are designed to provide the strong exception guarentee +// (in the event of a throw, the state of the object remains unchanged). +// +template <class charT, class traits> +basic_regex<charT, traits>& basic_regex<charT, traits>::do_assign(const charT* p1, + const charT* p2, + flag_type f) +{ + shared_ptr<re_detail::basic_regex_implementation<charT, traits> > temp; + if(!m_pimpl.get()) + { + temp = shared_ptr<re_detail::basic_regex_implementation<charT, traits> >(new re_detail::basic_regex_implementation<charT, traits>()); + } + else + { + temp = shared_ptr<re_detail::basic_regex_implementation<charT, traits> >(new re_detail::basic_regex_implementation<charT, traits>(m_pimpl->m_ptraits)); + } + temp->assign(p1, p2, f); + temp.swap(m_pimpl); + return *this; +} + +template <class charT, class traits> +typename basic_regex<charT, traits>::locale_type BOOST_REGEX_CALL basic_regex<charT, traits>::imbue(locale_type l) +{ + shared_ptr<re_detail::basic_regex_implementation<charT, traits> > temp(new re_detail::basic_regex_implementation<charT, traits>()); + locale_type result = temp->imbue(l); + temp.swap(m_pimpl); + return result; +} + +// +// non-members: +// +template <class charT, class traits> +void swap(basic_regex<charT, traits>& e1, basic_regex<charT, traits>& e2) +{ + e1.swap(e2); +} + +#ifndef BOOST_NO_STD_LOCALE +template <class charT, class traits, class traits2> +std::basic_ostream<charT, traits>& + operator << (std::basic_ostream<charT, traits>& os, + const basic_regex<charT, traits2>& e) +{ + return (os << e.str()); +} +#else +template <class traits> +std::ostream& operator << (std::ostream& os, const basic_regex<char, traits>& e) +{ + return (os << e.str()); +} +#endif + +// +// class reg_expression: +// this is provided for backwards compatibility only, +// it is deprecated, no not use! +// +#ifdef BOOST_REGEX_NO_FWD +template <class charT, class traits = regex_traits<charT> > +#else +template <class charT, class traits > +#endif +class reg_expression : public basic_regex<charT, traits> +{ +public: + typedef typename basic_regex<charT, traits>::flag_type flag_type; + typedef typename basic_regex<charT, traits>::size_type size_type; + explicit reg_expression(){} + explicit reg_expression(const charT* p, flag_type f = regex_constants::normal) + : basic_regex<charT, traits>(p, f){} + reg_expression(const charT* p1, const charT* p2, flag_type f = regex_constants::normal) + : basic_regex<charT, traits>(p1, p2, f){} + reg_expression(const charT* p, size_type len, flag_type f) + : basic_regex<charT, traits>(p, len, f){} + reg_expression(const reg_expression& that) + : basic_regex<charT, traits>(that) {} + ~reg_expression(){} + reg_expression& BOOST_REGEX_CALL operator=(const reg_expression& that) + { + return this->assign(that); + } + +#if !defined(BOOST_NO_MEMBER_TEMPLATES) + template <class ST, class SA> + explicit reg_expression(const std::basic_string<charT, ST, SA>& p, flag_type f = regex_constants::normal) + : basic_regex<charT, traits>(p, f) + { + } + + template <class InputIterator> + reg_expression(InputIterator arg_first, InputIterator arg_last, flag_type f = regex_constants::normal) + : basic_regex<charT, traits>(arg_first, arg_last, f) + { + } + + template <class ST, class SA> + reg_expression& BOOST_REGEX_CALL operator=(const std::basic_string<charT, ST, SA>& p) + { + this->assign(p); + return *this; + } +#else + explicit reg_expression(const std::basic_string<charT>& p, flag_type f = regex_constants::normal) + : basic_regex<charT, traits>(p, f) + { + } + + reg_expression& BOOST_REGEX_CALL operator=(const std::basic_string<charT>& p) + { + this->assign(p); + return *this; + } +#endif + +}; + +#ifdef BOOST_MSVC +#pragma warning (pop) +#endif + +} // namespace boost + +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable: 4103) +#endif +#ifdef BOOST_HAS_ABI_HEADERS +# include BOOST_ABI_SUFFIX +#endif +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif + +#endif + |