mirror of
https://github.com/boostorg/quickbook.git
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464 lines
17 KiB
C++
464 lines
17 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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#if !defined(BOOST_SPIRIT_QUICKBOOK_BLOCK_HPP)
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#define BOOST_SPIRIT_QUICKBOOK_BLOCK_HPP
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#include "./detail/quickbook.hpp"
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#include "./detail/utils.hpp"
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#include "./phrase.hpp"
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#include <boost/spirit/include/classic_core.hpp>
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#include <boost/spirit/include/classic_confix.hpp>
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#include <boost/spirit/include/classic_chset.hpp>
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#include <boost/spirit/include/classic_assign_actor.hpp>
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#include <boost/spirit/include/classic_if.hpp>
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#include <boost/spirit/include/classic_symbols.hpp>
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namespace quickbook
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{
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using namespace boost::spirit::classic;
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template <typename Actions, bool skip_initial_spaces = false>
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struct block_grammar : grammar<block_grammar<Actions> >
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{
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block_grammar(Actions& actions_)
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: actions(actions_) {}
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template <typename Scanner>
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struct definition
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{
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definition(block_grammar const& self)
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: no_eols(true)
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, common(self.actions, no_eols)
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{
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using detail::var;
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Actions& actions = self.actions;
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if (skip_initial_spaces)
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{
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start_ =
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*(space_p | comment) >> blocks >> blank
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;
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}
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else
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{
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start_ =
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blocks >> blank
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;
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}
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blocks =
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*( block_markup
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| code
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| list [actions.list]
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| hr [actions.hr]
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| comment >> +eol
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| paragraph [actions.inside_paragraph]
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[actions.write_paragraphs]
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| eol
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)
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;
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space =
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*(space_p | comment)
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;
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blank =
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*(blank_p | comment)
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;
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eol = blank >> eol_p
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;
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phrase_end =
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']' |
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if_p(var(no_eols))
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[
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eol >> *blank_p >> eol_p
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// Make sure that we don't go
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] // past a single block, except
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; // when preformatted.
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hard_space =
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(eps_p - (alnum_p | '_')) >> space // must not be preceded by
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; // alpha-numeric or underscore
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comment =
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"[/" >> *(dummy_block | (anychar_p - ']')) >> ']'
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;
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dummy_block =
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'[' >> *(dummy_block | (anychar_p - ']')) >> ']'
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;
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hr =
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str_p("----")
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>> *(anychar_p - eol)
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>> +eol
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;
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block_markup =
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'[' >> space
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>> ( begin_section
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| end_section
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| headings
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| blurb
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| blockquote
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| admonition
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| preformatted
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| def_macro
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| table
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| variablelist
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| xinclude
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| include
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| import
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| template_
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)
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>> ( (space >> ']' >> +eol)
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| eps_p [actions.error]
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)
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;
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element_id =
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':'
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>>
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(
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if_p(qbk_since(105u)) [space]
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>> (+(alnum_p | '_')) [assign_a(actions.element_id)]
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| eps_p [actions.element_id_warning]
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[assign_a(actions.element_id)]
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)
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| eps_p [assign_a(actions.element_id)]
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;
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element_id_1_5 =
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if_p(qbk_since(105u)) [
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element_id
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]
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.else_p [
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eps_p [assign_a(actions.element_id)]
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]
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;
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begin_section =
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"section"
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>> hard_space
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>> element_id
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>> phrase [actions.begin_section]
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;
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end_section =
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str_p("endsect") [actions.end_section]
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;
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headings =
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h1 | h2 | h3 | h4 | h5 | h6 | h
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;
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h = "heading" >> hard_space >> phrase [actions.h];
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h1 = "h1" >> hard_space >> phrase [actions.h1];
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h2 = "h2" >> hard_space >> phrase [actions.h2];
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h3 = "h3" >> hard_space >> phrase [actions.h3];
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h4 = "h4" >> hard_space >> phrase [actions.h4];
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h5 = "h5" >> hard_space >> phrase [actions.h5];
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h6 = "h6" >> hard_space >> phrase [actions.h6];
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static const bool true_ = true;
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static const bool false_ = false;
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inside_paragraph =
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phrase [actions.inside_paragraph]
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>> *(
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+eol >> phrase [actions.inside_paragraph]
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)
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;
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blurb =
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"blurb" >> hard_space
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>> inside_paragraph [actions.blurb]
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>> eps_p
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;
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blockquote =
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':' >> blank >>
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inside_paragraph [actions.blockquote]
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;
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admonition =
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"warning" >> blank >>
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inside_paragraph [actions.warning]
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"caution" >> blank >>
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inside_paragraph [actions.caution]
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"important" >> blank >>
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inside_paragraph [actions.important]
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"note" >> blank >>
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inside_paragraph [actions.note]
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"tip" >> blank >>
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inside_paragraph [actions.tip]
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;
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preformatted =
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"pre" >> hard_space [assign_a(no_eols, false_)]
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>> !eol >> phrase [actions.preformatted]
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>> eps_p [assign_a(no_eols, true_)]
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;
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macro_identifier =
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+(anychar_p - (space_p | ']'))
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;
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def_macro =
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"def" >> hard_space
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>> macro_identifier [actions.macro_identifier]
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>> blank >> phrase [actions.macro_definition]
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;
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identifier =
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(alpha_p | '_') >> *(alnum_p | '_')
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;
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template_id =
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identifier | (punct_p - (ch_p('[') | ']'))
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;
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template_ =
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"template"
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>> hard_space
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>> template_id [assign_a(actions.template_identifier)]
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[clear_a(actions.template_info)]
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>>
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!(
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space >> '['
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>> *(
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space >> template_id [push_back_a(actions.template_info)]
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)
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>> space >> ']'
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)
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>> template_body [actions.template_body]
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;
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template_body =
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*(('[' >> template_body >> ']') | (anychar_p - ']'))
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>> eps_p(space >> ']')
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>> space
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;
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variablelist =
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"variablelist"
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>> (eps_p(*blank_p >> eol_p) | hard_space)
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>> (*(anychar_p - eol)) [assign_a(actions.table_title)]
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>> +eol
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>> *varlistentry
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>> eps_p [actions.variablelist]
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;
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varlistentry =
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space
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>> ch_p('[') [actions.start_varlistentry]
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>>
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(
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(
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varlistterm
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>> +varlistitem
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>> ch_p(']') [actions.end_varlistentry]
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>> space
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)
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| eps_p [actions.error]
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)
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;
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varlistterm =
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space
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>> ch_p('[') [actions.start_varlistterm]
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>>
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(
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(
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phrase
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>> ch_p(']') [actions.end_varlistterm]
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>> space
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)
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| eps_p [actions.error]
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)
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;
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varlistitem =
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space
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>> ch_p('[') [actions.start_varlistitem]
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>>
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(
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(
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inside_paragraph
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>> ch_p(']') [actions.end_varlistitem]
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>> space
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)
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| eps_p [actions.error]
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)
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;
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table =
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"table"
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>> (eps_p(*blank_p >> eol_p) | hard_space)
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>> element_id_1_5
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>> (eps_p(*blank_p >> eol_p) | space)
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>> (*(anychar_p - eol)) [assign_a(actions.table_title)]
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>> +eol
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>> *table_row
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>> eps_p [actions.table]
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;
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table_row =
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space
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>> ch_p('[') [actions.start_row]
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>>
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(
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(
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*table_cell
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>> ch_p(']') [actions.end_row]
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>> space
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)
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| eps_p [actions.error]
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)
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;
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table_cell =
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space
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>> ch_p('[') [actions.start_cell]
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>>
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(
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(
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inside_paragraph
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>> ch_p(']') [actions.end_cell]
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>> space
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)
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| eps_p [actions.error]
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)
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;
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xinclude =
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"xinclude"
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>> hard_space
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>> (*(anychar_p -
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phrase_end)) [actions.xinclude]
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;
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import =
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"import"
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>> hard_space
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>> (*(anychar_p -
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phrase_end)) [actions.import]
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;
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include =
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"include"
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>> hard_space
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>>
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!(
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':'
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>> (*((alnum_p | '_') - space_p))[assign_a(actions.include_doc_id)]
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>> space
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)
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>> (*(anychar_p -
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phrase_end)) [actions.include]
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;
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code =
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(
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code_line
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>> *(*eol >> code_line)
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) [actions.code]
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>> +eol
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;
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code_line =
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((ch_p(' ') | '\t'))
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>> *(anychar_p - eol) >> eol
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;
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list =
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eps_p(ch_p('*') | '#') >>
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+(
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(*blank_p
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>> (ch_p('*') | '#')) [actions.list_format]
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>> *blank_p
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>> list_item
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) [actions.list_item]
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;
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list_item =
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*( common
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| (anychar_p -
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( eol_p >> *blank_p >> eps_p(ch_p('*') | '#')
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| (eol >> eol)
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)
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) [actions.plain_char]
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)
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>> +eol
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;
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paragraph_end_markups =
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"section", "endsect", "h1", "h2", "h3", "h4", "h5", "h6",
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"blurb", ":", "pre", "def", "table", "include", "xinclude",
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"variablelist", "import", "template", "warning", "caution",
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"important", "note", "tip", ":"
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;
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paragraph_end =
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'[' >> space >> paragraph_end_markups >> hard_space | eol >> *blank_p >> eol_p
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;
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paragraph =
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+( common
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| (anychar_p - // Make sure we don't go past
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paragraph_end // a single block.
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) [actions.plain_char]
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)
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>> (eps_p('[') | +eol)
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;
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phrase =
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*( common
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| comment
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| (anychar_p -
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phrase_end) [actions.plain_char]
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)
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;
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}
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bool no_eols;
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rule<Scanner> start_, blocks, block_markup, code, code_line,
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paragraph, space, blank, comment, headings, h, h1, h2,
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h3, h4, h5, h6, hr, blurb, blockquote, admonition,
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phrase, list, phrase_end, ordered_list, def_macro,
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macro_identifier, table, table_row, variablelist,
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varlistentry, varlistterm, varlistitem, table_cell,
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preformatted, list_item, begin_section, end_section,
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xinclude, include, hard_space, eol, paragraph_end,
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template_, template_id, template_formal_arg,
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template_body, identifier, dummy_block, import,
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inside_paragraph, element_id, element_id_1_5;
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symbols<> paragraph_end_markups;
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phrase_grammar<Actions> common;
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rule<Scanner> const&
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start() const { return start_; }
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};
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Actions& actions;
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};
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}
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#endif // BOOST_SPIRIT_QUICKBOOK_BLOCK_HPP
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