src/chset.h

   1 // -*- C++ -*-
   2 /**
   3  * \file chset.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #ifndef CHSET_H
  14 #define CHSET_H
  15
  16 #include <map>
  17 #include <utility>
  18 #include <string>
  19
  20
  21 /// a class for mapping char strings such as "\^{A}" to the integer value
  22 class CharacterSet {
  23 public:
  24         /**
  25          * initialise this charset from the given .cdef file
  26          * param charset the charset to look for
  27          *
  28          * Finds a .cdef file corresponding to the named charset
  29          * and parses it. This function is only intended to be
  30          * called once.
  31          */
  32         bool loadFile(std::string const & charset);
  33         /// return the name of the current charset
  34         std::string const & getName() const;
  35         /**
  36          * Return the encoded charset value of the given string.
  37          *
  38          * The bool value is false if an encoding could not be found
  39          * in this charset, and true otherwise.
  40          */
  41         std::pair<bool, int> const encodeString(std::string const &) const;
  42 private:
  43         /// charset name
  44         std::string name_;
  45         ///
  46         typedef std::map<std::string, unsigned char> Cdef;
  47         /// mapping from string representation to encoded value
  48         Cdef map_;
  49 };
  50 #endif