tools/quickbook/src/state.cpp

   1 /*=============================================================================
   2     Copyright (c) 2002 2004 2006 Joel de Guzman
   3     Copyright (c) 2004 Eric Niebler
   4     Copyright (c) 2005 Thomas Guest
   5     http://spirit.sourceforge.net/
   6
   7     Use, modification and distribution is subject to the Boost Software
   8     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   9     http://www.boost.org/LICENSE_1_0.txt)
  10 =============================================================================*/
  11 #include "state.hpp"
  12 #include "state_save.hpp"
  13 #include "document_state.hpp"
  14 #include "quickbook.hpp"
  15 #include "grammar.hpp"
  16 #include "native_text.hpp"
  17 #include "utils.hpp"
  18 #include "phrase_tags.hpp"
  19 #include <boost/foreach.hpp>
  20
  21 #if (defined(BOOST_MSVC) && (BOOST_MSVC <= 1310))
  22 #pragma warning(disable:4355)
  23 #endif
  24
  25 namespace quickbook
  26 {
  27     char const* quickbook_get_date = "__quickbook_get_date__";
  28     char const* quickbook_get_time = "__quickbook_get_time__";
  29
  30     unsigned qbk_version_n = 0; // qbk_major_version * 100 + qbk_minor_version
  31
  32     state::state(fs::path const& filein_, fs::path const& xinclude_base_,
  33             string_stream& out_, document_state& document)
  34         : grammar_()
  35
  36         , order_pos(0)
  37         , xinclude_base(xinclude_base_)
  38
  39         , templates()
  40         , error_count(0)
  41         , anchors()
  42         , warned_about_breaks(false)
  43         , conditional(true)
  44         , document(document)
  45         , callouts()
  46         , callout_depth(0)
  47         , dependencies()
  48         , explicit_list(false)
  49
  50         , imported(false)
  51         , macro()
  52         , source_mode()
  53         , source_mode_next()
  54         , source_mode_next_pos()
  55         , current_file(0)
  56         , current_path(filein_, 0, filein_.filename())
  57
  58         , template_depth(0)
  59         , min_section_level(1)
  60
  61         , in_list(false)
  62         , in_list_save()
  63         , out(out_)
  64         , phrase()
  65
  66         , values(&current_file)
  67     {
  68         // add the predefined macros
  69         macro.add
  70             ("__DATE__", std::string(quickbook_get_date))
  71             ("__TIME__", std::string(quickbook_get_time))
  72             ("__FILENAME__", std::string())
  73         ;
  74         update_filename_macro();
  75
  76         boost::scoped_ptr<quickbook_grammar> g(
  77             new quickbook_grammar(*this));
  78         grammar_.swap(g);
  79     }
  80
  81     quickbook_grammar& state::grammar() const {
  82         return *grammar_;
  83     }
  84
  85     void state::update_filename_macro() {
  86         *boost::spirit::classic::find(macro, "__FILENAME__")
  87             = detail::encode_string(
  88                     detail::path_to_generic(current_path.abstract_file_path));
  89     }
  90
  91     unsigned state::get_new_order_pos() {
  92         return ++order_pos;
  93     }
  94
  95     void state::push_output() {
  96         out.push();
  97         phrase.push();
  98         in_list_save.push(in_list);
  99     }
 100
 101     void state::pop_output() {
 102         phrase.pop();
 103         out.pop();
 104         in_list = in_list_save.top();
 105         in_list_save.pop();
 106     }
 107
 108     source_mode_info state::tagged_source_mode() const {
 109         source_mode_info result;
 110
 111         BOOST_FOREACH(source_mode_info const& s, tagged_source_mode_stack) {
 112             result.update(s);
 113         }
 114
 115         return result;
 116     }
 117
 118     source_mode_info state::current_source_mode() const {
 119         source_mode_info result = source_mode;
 120
 121         result.update(document.section_source_mode());
 122
 123         BOOST_FOREACH(source_mode_info const& s, tagged_source_mode_stack) {
 124             result.update(s);
 125         }
 126
 127         return result;
 128     }
 129
 130     void state::change_source_mode(source_mode_type s) {
 131         source_mode = source_mode_info(s, get_new_order_pos());
 132     }
 133
 134     void state::push_tagged_source_mode(source_mode_type s) {
 135         tagged_source_mode_stack.push_back(
 136             source_mode_info(s, s ? get_new_order_pos() : 0));
 137     }
 138
 139     void state::pop_tagged_source_mode() {
 140         assert(!tagged_source_mode_stack.empty());
 141         tagged_source_mode_stack.pop_back();
 142     }
 143
 144     state_save::state_save(quickbook::state& state, scope_flags scope)
 145         : state(state)
 146         , scope(scope)
 147         , qbk_version(qbk_version_n)
 148         , imported(state.imported)
 149         , current_file(state.current_file)
 150         , current_path(state.current_path)
 151         , xinclude_base(state.xinclude_base)
 152         , source_mode(state.source_mode)
 153         , macro()
 154         , template_depth(state.template_depth)
 155         , min_section_level(state.min_section_level)
 156     {
 157         if (scope & scope_macros) macro = state.macro;
 158         if (scope & scope_templates) state.templates.push();
 159         if (scope & scope_output) {
 160             state.push_output();
 161         }
 162         state.values.builder.save();
 163     }
 164
 165     state_save::~state_save()
 166     {
 167         state.values.builder.restore();
 168         boost::swap(qbk_version_n, qbk_version);
 169         boost::swap(state.imported, imported);
 170         boost::swap(state.current_file, current_file);
 171         boost::swap(state.current_path, current_path);
 172         boost::swap(state.xinclude_base, xinclude_base);
 173         boost::swap(state.source_mode, source_mode);
 174         if (scope & scope_output) {
 175             state.pop_output();
 176         }
 177         if (scope & scope_templates) state.templates.pop();
 178         if (scope & scope_macros) state.macro = macro;
 179         boost::swap(state.template_depth, template_depth);
 180         boost::swap(state.min_section_level, min_section_level);
 181     }
 182 }