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72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*=============================================================================
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Copyright (c) 2002 2004 2006Joel de Guzman
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Copyright (c) 2004 Eric Niebler
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http://spirit.sourceforge.net/
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include <boost/spirit/include/qi_core.hpp>
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#include <boost/spirit/include/qi_eps.hpp>
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#include <boost/spirit/include/qi_eol.hpp>
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#include "misc_rules.hpp"
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namespace quickbook
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{
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namespace qi = boost::spirit::qi;
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qi::rule<iterator, std::string()> macro_identifier;
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qi::rule<iterator> dummy_block;
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qi::rule<iterator> comment;
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qi::rule<iterator> hard_space;
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qi::rule<iterator> space;
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qi::rule<iterator> blank;
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qi::rule<iterator> eol;
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qi::rule<iterator, file_position()> position;
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struct get_position
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{
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template <typename Range, typename Context>
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void operator()(Range const& it, Context& c, bool& x) const {
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boost::spirit::_val(it, c, x) = it.begin().get_position();
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}
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};
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void init_misc_rules() {
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macro_identifier =
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+(qi::char_ - (qi::space | ']'))
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;
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dummy_block =
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'[' >> *(dummy_block | (qi::char_ - ']')) >> ']'
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;
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comment =
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"[/" >> *(dummy_block | (qi::char_ - ']')) >> ']'
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;
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// Used after an identifier that must not be immediately
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// followed by an alpha-numeric character or underscore.
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hard_space =
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!(qi::alnum | '_') >> space
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;
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space =
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*(qi::space | comment)
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;
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blank =
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*(qi::blank | comment)
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;
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eol =
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blank >> qi::eol
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;
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position =
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qi::raw[qi::eps] [get_position()];
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}
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}
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