stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

This commit is contained in:
2026-02-24 18:38:47 +00:00
parent da8c28aaeb
commit 65cb2619a7
13106 changed files with 2484322 additions and 1804 deletions
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// Copyright (c) 2001-2011 Hartmut Kaiser
// Copyright (c) 2010 Bryce Lelbach
//
// 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)
#if !defined(BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM)
#define BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/support/common_terminals.hpp>
#include <boost/spirit/home/support/string_traits.hpp>
#include <boost/spirit/home/support/info.hpp>
#include <boost/spirit/home/support/char_class.hpp>
#include <boost/spirit/home/support/detail/get_encoding.hpp>
#include <boost/spirit/home/support/char_set/basic_chset.hpp>
#include <boost/spirit/home/karma/domain.hpp>
#include <boost/spirit/home/karma/meta_compiler.hpp>
#include <boost/spirit/home/karma/delimit_out.hpp>
#include <boost/spirit/home/karma/char/char_generator.hpp>
#include <boost/spirit/home/karma/auxiliary/lazy.hpp>
#include <boost/spirit/home/karma/detail/get_casetag.hpp>
#include <boost/spirit/home/karma/detail/generate_to.hpp>
#include <boost/spirit/home/karma/detail/enable_lit.hpp>
#include <boost/fusion/include/at.hpp>
#include <boost/fusion/include/vector.hpp>
#include <boost/fusion/include/cons.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/utility/enable_if.hpp>
#include <string>
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit
{
///////////////////////////////////////////////////////////////////////////
// Enablers
///////////////////////////////////////////////////////////////////////////
template <typename CharEncoding>
struct use_terminal<karma::domain
, tag::char_code<tag::char_, CharEncoding> // enables char_
> : mpl::true_ {};
template <typename CharEncoding, typename A0>
struct use_terminal<karma::domain
, terminal_ex<
tag::char_code<tag::char_, CharEncoding> // enables char_('x'), char_("x")
, fusion::vector1<A0>
>
> : mpl::true_ {};
template <typename A0>
struct use_terminal<karma::domain
, terminal_ex<tag::lit, fusion::vector1<A0> > // enables lit('x')
, typename enable_if<traits::is_char<A0> >::type>
: mpl::true_ {};
template <typename CharEncoding, typename A0, typename A1>
struct use_terminal<karma::domain
, terminal_ex<
tag::char_code<tag::char_, CharEncoding> // enables char_('a','z')
, fusion::vector2<A0, A1>
>
> : mpl::true_ {};
template <typename CharEncoding> // enables *lazy* char_('x'), char_("x")
struct use_lazy_terminal<
karma::domain
, tag::char_code<tag::char_, CharEncoding>
, 1 // arity
> : mpl::true_ {};
template <>
struct use_terminal<karma::domain, char> // enables 'x'
: mpl::true_ {};
template <>
struct use_terminal<karma::domain, char[2]> // enables "x"
: mpl::true_ {};
template <>
struct use_terminal<karma::domain, wchar_t> // enables L'x'
: mpl::true_ {};
template <>
struct use_terminal<karma::domain, wchar_t[2]> // enables L"x"
: mpl::true_ {};
}}
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit { namespace karma
{
#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
using spirit::lit; // lit('x') is equivalent to 'x'
#endif
using spirit::lit_type;
///////////////////////////////////////////////////////////////////////////
//
// any_char
// generates a single character from the associated attribute
//
// Note: this generator has to have an associated attribute
//
///////////////////////////////////////////////////////////////////////////
template <typename CharEncoding, typename Tag>
struct any_char
: char_generator<any_char<CharEncoding, Tag>, CharEncoding, Tag>
{
typedef typename CharEncoding::char_type char_type;
typedef CharEncoding char_encoding;
template <typename Context, typename Unused>
struct attribute
{
typedef char_type type;
};
// any_char has an attached parameter
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context&) const
{
ch = CharParam(attr);
return true;
}
// any_char has no attribute attached, it needs to have been
// initialized from a direct literal
template <typename CharParam, typename Context>
bool test(unused_type, CharParam&, Context&) const
{
// It is not possible (doesn't make sense) to use char_ without
// providing any attribute, as the generator doesn't 'know' what
// character to output. The following assertion fires if this
// situation is detected in your code.
BOOST_SPIRIT_ASSERT_FAIL(CharParam, char_not_usable_without_attribute, ());
return false;
}
template <typename Context>
static info what(Context const& /*context*/)
{
return info("any-char");
}
};
///////////////////////////////////////////////////////////////////////////
//
// literal_char
// generates a single character given by a literal it was initialized
// from
//
///////////////////////////////////////////////////////////////////////////
template <typename CharEncoding, typename Tag, bool no_attribute>
struct literal_char
: char_generator<literal_char<CharEncoding, Tag, no_attribute>
, CharEncoding, Tag>
{
typedef typename CharEncoding::char_type char_type;
typedef CharEncoding char_encoding;
literal_char(char_type ch)
: ch (spirit::char_class::convert<char_encoding>::to(Tag(), ch))
{}
template <typename Context, typename Unused>
struct attribute
: mpl::if_c<no_attribute, unused_type, char_type>
{};
// A char_('x') which additionally has an associated attribute emits
// its immediate literal only if it matches the attribute, otherwise
// it fails.
// any_char has an attached parameter
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch_, Context&) const
{
// fail if attribute isn't matched my immediate literal
ch_ = attr;
return attr == ch;
}
// A char_('x') without any associated attribute just emits its
// immediate literal
template <typename CharParam, typename Context>
bool test(unused_type, CharParam& ch_, Context&) const
{
ch_ = ch;
return true;
}
template <typename Context>
info what(Context const& /*context*/) const
{
return info("literal-char", char_encoding::toucs4(ch));
}
char_type ch;
};
///////////////////////////////////////////////////////////////////////////
// char range generator
template <typename CharEncoding, typename Tag>
struct char_range
: char_generator<char_range<CharEncoding, Tag>, CharEncoding, Tag>
{
typedef typename CharEncoding::char_type char_type;
typedef CharEncoding char_encoding;
char_range(char_type from, char_type to)
: from(spirit::char_class::convert<char_encoding>::to(Tag(), from))
, to(spirit::char_class::convert<char_encoding>::to(Tag(), to))
{}
// A char_('a', 'z') which has an associated attribute emits it only if
// it matches the character range, otherwise it fails.
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context&) const
{
// fail if attribute doesn't belong to character range
ch = attr;
return (from <= char_type(attr)) && (char_type(attr) <= to);
}
// A char_('a', 'z') without any associated attribute fails compiling
template <typename CharParam, typename Context>
bool test(unused_type, CharParam&, Context&) const
{
// It is not possible (doesn't make sense) to use char_ generators
// without providing any attribute, as the generator doesn't 'know'
// what to output. The following assertion fires if this situation
// is detected in your code.
BOOST_SPIRIT_ASSERT_FAIL(CharParam
, char_range_not_usable_without_attribute, ());
return false;
}
template <typename Context>
info what(Context& /*context*/) const
{
info result("char-range", char_encoding::toucs4(from));
boost::get<std::string>(result.value) += '-';
boost::get<std::string>(result.value) += to_utf8(char_encoding::toucs4(to));
return result;
}
char_type from, to;
};
///////////////////////////////////////////////////////////////////////////
// character set generator
template <typename CharEncoding, typename Tag, bool no_attribute>
struct char_set
: char_generator<char_set<CharEncoding, Tag, no_attribute>
, CharEncoding, Tag>
{
typedef typename CharEncoding::char_type char_type;
typedef CharEncoding char_encoding;
template <typename Context, typename Unused>
struct attribute
: mpl::if_c<no_attribute, unused_type, char_type>
{};
template <typename String>
char_set(String const& str)
{
typedef typename traits::char_type_of<String>::type in_type;
BOOST_SPIRIT_ASSERT_MSG((
(sizeof(char_type) == sizeof(in_type))
), cannot_convert_string, (String));
typedef spirit::char_class::convert<char_encoding> convert_type;
char_type const* definition =
(char_type const*)traits::get_c_string(str);
char_type ch = convert_type::to(Tag(), *definition++);
while (ch)
{
char_type next = convert_type::to(Tag(), *definition++);
if (next == '-')
{
next = convert_type::to(Tag(), *definition++);
if (next == 0)
{
chset.set(ch);
chset.set('-');
break;
}
chset.set(ch, next);
}
else
{
chset.set(ch);
}
ch = next;
}
}
// A char_("a-z") which has an associated attribute emits it only if
// it matches the character set, otherwise it fails.
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context&) const
{
// fail if attribute doesn't belong to character set
ch = attr;
return chset.test(char_type(attr));
}
// A char_("a-z") without any associated attribute fails compiling
template <typename CharParam, typename Context>
bool test(unused_type, CharParam&, Context&) const
{
// It is not possible (doesn't make sense) to use char_ generators
// without providing any attribute, as the generator doesn't 'know'
// what to output. The following assertion fires if this situation
// is detected in your code.
BOOST_SPIRIT_ASSERT_FAIL(CharParam
, char_set_not_usable_without_attribute, ());
return false;
}
template <typename Context>
info what(Context& /*context*/) const
{
return info("char-set");
}
support::detail::basic_chset<char_type> chset;
};
///////////////////////////////////////////////////////////////////////////
// Generator generators: make_xxx function (objects)
///////////////////////////////////////////////////////////////////////////
namespace detail
{
template <typename Modifiers, typename Encoding>
struct basic_literal
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef literal_char<
typename spirit::detail::get_encoding_with_case<
Modifiers, Encoding, lower || upper>::type
, typename get_casetag<Modifiers, lower || upper>::type
, true>
result_type;
template <typename Char>
result_type operator()(Char ch, unused_type) const
{
return result_type(ch);
}
template <typename Char>
result_type operator()(Char const* str, unused_type) const
{
return result_type(str[0]);
}
};
}
// literals: 'x', "x"
template <typename Modifiers>
struct make_primitive<char, Modifiers>
: detail::basic_literal<Modifiers, char_encoding::standard> {};
template <typename Modifiers>
struct make_primitive<char const(&)[2], Modifiers>
: detail::basic_literal<Modifiers, char_encoding::standard> {};
// literals: L'x', L"x"
template <typename Modifiers>
struct make_primitive<wchar_t, Modifiers>
: detail::basic_literal<Modifiers, char_encoding::standard_wide> {};
template <typename Modifiers>
struct make_primitive<wchar_t const(&)[2], Modifiers>
: detail::basic_literal<Modifiers, char_encoding::standard_wide> {};
// char_
template <typename CharEncoding, typename Modifiers>
struct make_primitive<tag::char_code<tag::char_, CharEncoding>, Modifiers>
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef any_char<
typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type
, typename detail::get_casetag<Modifiers, lower || upper>::type
> result_type;
result_type operator()(unused_type, unused_type) const
{
return result_type();
}
};
///////////////////////////////////////////////////////////////////////////
namespace detail
{
template <typename CharEncoding, typename Modifiers, typename A0
, bool no_attribute>
struct make_char_direct
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type encoding;
typedef typename detail::get_casetag<
Modifiers, lower || upper>::type tag;
typedef typename mpl::if_<
traits::is_string<A0>
, char_set<encoding, tag, no_attribute>
, literal_char<encoding, tag, no_attribute>
>::type result_type;
template <typename Terminal>
result_type operator()(Terminal const& term, unused_type) const
{
return result_type(fusion::at_c<0>(term.args));
}
};
}
// char_(...), lit(...)
template <typename CharEncoding, typename Modifiers, typename A0>
struct make_primitive<
terminal_ex<
tag::char_code<tag::char_, CharEncoding>
, fusion::vector1<A0> >
, Modifiers>
: detail::make_char_direct<CharEncoding, Modifiers, A0, false>
{};
template <typename Modifiers, typename A0>
struct make_primitive<
terminal_ex<tag::lit, fusion::vector1<A0> >
, Modifiers
, typename enable_if<traits::is_char<A0> >::type>
: detail::make_char_direct<
typename traits::char_encoding_from_char<
typename traits::char_type_of<A0>::type>::type
, Modifiers, A0, true>
{};
///////////////////////////////////////////////////////////////////////////
// char_("x")
template <typename CharEncoding, typename Modifiers, typename Char>
struct make_primitive<
terminal_ex<
tag::char_code<tag::char_, CharEncoding>
, fusion::vector1<Char(&)[2]> > // For single char strings
, Modifiers>
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef literal_char<
typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type
, typename detail::get_casetag<Modifiers, lower || upper>::type
, false
> result_type;
template <typename Terminal>
result_type operator()(Terminal const& term, unused_type) const
{
return result_type(fusion::at_c<0>(term.args)[0]);
}
};
///////////////////////////////////////////////////////////////////////////
// char_('a', 'z')
template <typename CharEncoding, typename Modifiers, typename A0, typename A1>
struct make_primitive<
terminal_ex<
tag::char_code<tag::char_, CharEncoding>
, fusion::vector2<A0, A1>
>
, Modifiers>
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef char_range<
typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type
, typename detail::get_casetag<Modifiers, lower || upper>::type
> result_type;
template <typename Terminal>
result_type operator()(Terminal const& term, unused_type) const
{
return result_type(fusion::at_c<0>(term.args)
, fusion::at_c<1>(term.args));
}
};
template <typename CharEncoding, typename Modifiers, typename Char>
struct make_primitive<
terminal_ex<
tag::char_code<tag::char_, CharEncoding>
, fusion::vector2<Char(&)[2], Char(&)[2]> // For single char strings
>
, Modifiers>
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef char_range<
typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type
, typename detail::get_casetag<Modifiers, lower || upper>::type
> result_type;
template <typename Terminal>
result_type operator()(Terminal const& term, unused_type) const
{
return result_type(fusion::at_c<0>(term.args)[0]
, fusion::at_c<1>(term.args)[0]);
}
};
}}} // namespace boost::spirit::karma
#endif
@@ -0,0 +1,226 @@
// Copyright (c) 2001-2011 Hartmut Kaiser
//
// 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)
#if !defined(BOOST_SPIRIT_KARMA_CHAR_CLASS_AUG_10_2009_0720AM)
#define BOOST_SPIRIT_KARMA_CHAR_CLASS_AUG_10_2009_0720AM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/support/common_terminals.hpp>
#include <boost/spirit/home/support/string_traits.hpp>
#include <boost/spirit/home/support/info.hpp>
#include <boost/spirit/home/support/char_class.hpp>
#include <boost/spirit/home/support/detail/get_encoding.hpp>
#include <boost/spirit/home/karma/domain.hpp>
#include <boost/spirit/home/karma/meta_compiler.hpp>
#include <boost/spirit/home/karma/delimit_out.hpp>
#include <boost/spirit/home/karma/char/char_generator.hpp>
#include <boost/spirit/home/karma/auxiliary/lazy.hpp>
#include <boost/spirit/home/karma/detail/get_casetag.hpp>
#include <boost/spirit/home/karma/detail/generate_to.hpp>
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit
{
///////////////////////////////////////////////////////////////////////////
// Enablers
///////////////////////////////////////////////////////////////////////////
// enables alnum, alpha, graph, etc.
template <typename CharClass, typename CharEncoding>
struct use_terminal<karma::domain
, tag::char_code<CharClass, CharEncoding> >
: mpl::true_ {};
}}
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit { namespace karma
{
// hoist the char classification namespaces into karma sub-namespaces of
// the same name
namespace ascii { using namespace boost::spirit::ascii; }
namespace iso8859_1 { using namespace boost::spirit::iso8859_1; }
namespace standard { using namespace boost::spirit::standard; }
namespace standard_wide { using namespace boost::spirit::standard_wide; }
#if defined(BOOST_SPIRIT_UNICODE)
namespace unicode { using namespace boost::spirit::unicode; }
#endif
// Import the standard namespace into the karma namespace. This allows
// for default handling of all character/string related operations if not
// prefixed with a character set namespace.
using namespace boost::spirit::standard;
// Import encoding
using spirit::encoding;
///////////////////////////////////////////////////////////////////////////
//
// char_class
// generates a single character if it matches the given character
// class
//
///////////////////////////////////////////////////////////////////////////
template <typename Tag, typename CharEncoding, typename CharClass>
struct char_class
: char_generator<
char_class<Tag, CharEncoding, CharClass>
, CharEncoding, CharClass>
{
typedef typename Tag::char_encoding char_encoding;
typedef typename char_encoding::char_type char_type;
typedef typename Tag::char_class classification;
template <typename Context, typename Unused>
struct attribute
{
typedef char_type type;
};
// char_class needs an attached attribute
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context&) const
{
ch = attr;
using spirit::char_class::classify;
return classify<char_encoding>::is(classification(), attr);
}
// char_class shouldn't be used without any associated attribute
template <typename CharParam, typename Context>
bool test(unused_type, CharParam&, Context&) const
{
// It is not possible (doesn't make sense) to use char_ generators
// without providing any attribute, as the generator doesn't 'know'
// what to output. The following assertion fires if this situation
// is detected in your code.
BOOST_SPIRIT_ASSERT_FAIL(CharParam
, char_class_not_usable_without_attribute, ());
return false;
}
template <typename Context>
static info what(Context const& /*context*/)
{
typedef spirit::char_class::what<char_encoding> what_;
return info(what_::is(classification()));
}
};
///////////////////////////////////////////////////////////////////////////
//
// space
// generates a single character from the associated parameter
//
///////////////////////////////////////////////////////////////////////////
template <typename CharEncoding>
struct any_space
: char_generator<any_space<CharEncoding>, CharEncoding, tag::space>
{
typedef typename CharEncoding::char_type char_type;
typedef CharEncoding char_encoding;
template <typename Context, typename Unused>
struct attribute
{
typedef char_type type;
};
// any_space has an attached parameter
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context&) const
{
ch = CharParam(attr);
using spirit::char_class::classify;
return classify<char_encoding>::is(tag::space(), attr);
}
// any_space has no attribute attached, use single space character
template <typename CharParam, typename Context>
bool test(unused_type, CharParam& ch, Context&) const
{
ch = ' ';
return true;
}
template <typename Context>
static info what(Context const& /*context*/)
{
return info("space");
}
};
///////////////////////////////////////////////////////////////////////////
// Generator generators: make_xxx function (objects)
///////////////////////////////////////////////////////////////////////////
namespace detail
{
template <typename Tag, bool lower = false, bool upper = false>
struct make_char_class : mpl::identity<Tag> {};
template <>
struct make_char_class<tag::alpha, true, false>
: mpl::identity<tag::lower> {};
template <>
struct make_char_class<tag::alpha, false, true>
: mpl::identity<tag::upper> {};
template <>
struct make_char_class<tag::alnum, true, false>
: mpl::identity<tag::lowernum> {};
template <>
struct make_char_class<tag::alnum, false, true>
: mpl::identity<tag::uppernum> {};
}
// enables alnum, alpha, graph, etc.
template <typename CharClass, typename CharEncoding, typename Modifiers>
struct make_primitive<tag::char_code<CharClass, CharEncoding>, Modifiers>
{
static bool const lower =
has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
static bool const upper =
has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;
typedef tag::char_code<
typename detail::make_char_class<CharClass, lower, upper>::type
, CharEncoding>
tag_type;
typedef char_class<
tag_type
, typename spirit::detail::get_encoding_with_case<
Modifiers, CharEncoding, lower || upper>::type
, typename detail::get_casetag<Modifiers, lower || upper>::type
> result_type;
result_type operator()(unused_type, unused_type) const
{
return result_type();
}
};
// space is special
template <typename CharEncoding, typename Modifiers>
struct make_primitive<tag::char_code<tag::space, CharEncoding>, Modifiers>
{
typedef any_space<CharEncoding> result_type;
result_type operator()(unused_type, unused_type) const
{
return result_type();
}
};
}}} // namespace boost::spirit::karma
#endif // !defined(BOOST_SPIRIT_KARMA_CHAR_FEB_21_2007_0543PM)
@@ -0,0 +1,168 @@
// Copyright (c) 2001-2011 Hartmut Kaiser
// Copyright (c) 2001-2011 Joel de Guzman
//
// 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)
#if !defined(BOOST_SPIRIT_CHAR_GENERATOR_SEP_07_2009_0417PM)
#define BOOST_SPIRIT_CHAR_GENERATOR_SEP_07_2009_0417PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/karma/domain.hpp>
#include <boost/spirit/home/karma/generator.hpp>
#include <boost/spirit/home/karma/detail/generate_to.hpp>
#include <boost/spirit/home/karma/detail/extract_from.hpp>
#include <boost/spirit/home/karma/meta_compiler.hpp>
#include <boost/spirit/home/karma/delimit_out.hpp>
#include <boost/spirit/home/support/unused.hpp>
#include <boost/spirit/home/support/info.hpp>
#include <boost/spirit/home/support/container.hpp>
namespace boost { namespace spirit
{
///////////////////////////////////////////////////////////////////////////
// Enablers
///////////////////////////////////////////////////////////////////////////
template <>
struct use_operator<karma::domain, proto::tag::complement> // enables ~
: mpl::true_ {};
}}
namespace boost { namespace spirit { namespace traits // classification
{
namespace detail
{
BOOST_MPL_HAS_XXX_TRAIT_DEF(char_generator_id)
}
template <typename T>
struct is_char_generator : detail::has_char_generator_id<T> {};
}}}
namespace boost { namespace spirit { namespace karma
{
///////////////////////////////////////////////////////////////////////////
// The base char_parser
///////////////////////////////////////////////////////////////////////////
template <typename Derived, typename CharEncoding, typename Tag
, typename Char = typename CharEncoding::char_type, typename Attr = Char>
struct char_generator : primitive_generator<Derived>
{
typedef CharEncoding char_encoding;
typedef Tag tag;
typedef Char char_type;
struct char_generator_id;
// if Attr is unused_type, Derived must supply its own attribute
// metafunction
template <typename Context, typename Unused>
struct attribute
{
typedef Attr type;
};
template <
typename OutputIterator, typename Context, typename Delimiter
, typename Attribute>
bool generate(OutputIterator& sink, Context& context, Delimiter const& d
, Attribute const& attr) const
{
if (!traits::has_optional_value(attr))
return false;
Attr ch = Attr();
if (!this->derived().test(traits::extract_from<Attr>(attr, context), ch, context))
return false;
return karma::detail::generate_to(sink, ch, char_encoding(), tag()) &&
karma::delimit_out(sink, d); // always do post-delimiting
}
// Requirement: g.test(attr, ch, context) -> bool
//
// attr: associated attribute
// ch: character to be generated (set by test())
// context: enclosing rule context
};
///////////////////////////////////////////////////////////////////////////
// negated_char_generator handles ~cg expressions (cg is a char_generator)
///////////////////////////////////////////////////////////////////////////
template <typename Positive>
struct negated_char_generator
: char_generator<negated_char_generator<Positive>
, typename Positive::char_encoding, typename Positive::tag>
{
negated_char_generator(Positive const& positive)
: positive(positive) {}
template <typename Attribute, typename CharParam, typename Context>
bool test(Attribute const& attr, CharParam& ch, Context& context) const
{
return !positive.test(attr, ch, context);
}
template <typename Context>
info what(Context& context) const
{
return info("not", positive.what(context));
}
Positive positive;
};
///////////////////////////////////////////////////////////////////////////
// Generator generators: make_xxx function (objects)
///////////////////////////////////////////////////////////////////////////
namespace detail
{
template <typename Positive>
struct make_negated_char_generator
{
typedef negated_char_generator<Positive> result_type;
result_type operator()(Positive const& positive) const
{
return result_type(positive);
}
};
template <typename Positive>
struct make_negated_char_generator<negated_char_generator<Positive> >
{
typedef Positive result_type;
result_type operator()(negated_char_generator<Positive> const& ncg) const
{
return ncg.positive;
}
};
}
template <typename Elements, typename Modifiers>
struct make_composite<proto::tag::complement, Elements, Modifiers>
{
typedef typename
fusion::result_of::value_at_c<Elements, 0>::type
subject;
BOOST_SPIRIT_ASSERT_MSG((
traits::is_char_generator<subject>::value
), subject_is_not_negatable, (subject));
typedef typename
detail::make_negated_char_generator<subject>::result_type
result_type;
result_type operator()(Elements const& elements, unused_type) const
{
return detail::make_negated_char_generator<subject>()(
fusion::at_c<0>(elements));
}
};
}}}
#endif