Xport: XHTML Parsing and Objective Reporting Toolkit

/************************************************************************
Xport: XHTML Parsing & Objective Reporting Toolkit
Copyright (C) 2007  Mitchel Haas

This file is part of Xport.

Xport is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Xport is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Xport.  If not, see <http://www.gnu.org/licenses/>.

For complete documentation on this library and alternative
licensing options, visit http://www.xportpro.com
Email questions, comments or suggestions to mitchel.haas@xportpro.com
************************************************************************/
#pragma once
#include <string>
#include <vector>
#include <iosfwd>
#include <fstream>

namespace Xport
{
  template<typename T, typename U> class xhtml_stylesheet_formatter;
  template<typename T, typename U> class xhtml_stylesheet;
  template<typename T> class xhtml_stylesheet_item;
  template<typename T> class stylesheet_declaration;
  template<typename T, typename U> class xhtml_stylesheet_comment;
  template<typename T, typename U> class xhtml_stylesheet_import;
  template<typename T, typename U> class xhtml_stylesheet_rule;

  enum ss_formatter_integer_option { selector_indent, declaration_indent };
  enum ss_formatter_boolean_option { newline_after_selector };
  enum ss_formatter_string_option { rule_heading };
}

template<typename CT, typename SBT>
class Xport::xhtml_stylesheet_formatter
{
public:
  explicit inline xhtml_stylesheet_formatter(const std::basic_string<CT>& filename);
  explicit inline xhtml_stylesheet_formatter(std::basic_ostream<CT>& out);
  ~xhtml_stylesheet_formatter();

private:
  xhtml_stylesheet_formatter();

public:
  // public interface
  bool operator !() const { return output->fail(); }
  // query options
  bool option(ss_formatter_boolean_option bool_opt) const;
  int option(ss_formatter_integer_option int_opt) const;
  std::basic_string<CT> option(ss_formatter_string_option string_opt) const;
  encoding option(formatter_encoding_option opt) const;
  // mutate options
  bool option(ss_formatter_boolean_option bool_opt, bool bool_value);
  bool option(ss_formatter_integer_option int_opt, int int_value);
  bool option(ss_formatter_string_option string_opt, const std::basic_string<CT>& string_value);
  bool option(formatter_encoding_option opt, encoding enc);
  xhtml_stylesheet_formatter& operator << (const xhtml_stylesheet<CT, SBT>& ss) { ss.write(*this); return *this; }
  xhtml_stylesheet_formatter& operator << (const SBT& si) { si.write(*this); return *this; }

private:
  // private interface
  xhtml_stylesheet_formatter(const xhtml_stylesheet_formatter& src); // prevent copying
  xhtml_stylesheet_formatter& operator =(const xhtml_stylesheet_formatter& src); // prevent assignment
  void insert_comment(const std::basic_string<CT>& data) const;
  void insert_import(const std::basic_string<CT>& path) const;
  void insert_rule(const std::basic_string<CT>& selector, const std::vector<stylesheet_declaration<CT> >& decls) const;

  // data
  std::basic_string<CT> rheader;
  bool created_output;
  bool rule_sep;
  bool newline_after_sel;
  short selector_ind;
  short declaration_ind;
  mutable std::basic_ostream<CT>* output;
  encoding file_encoding;

  // friends
  friend class xhtml_stylesheet<CT, SBT>;
  friend class xhtml_stylesheet_import<CT, SBT>;
  friend class xhtml_stylesheet_rule<CT, SBT>;
  friend class xhtml_stylesheet_comment<CT, SBT>;
};

#include "stylesheet_formatter.inl"