src/chset.h

   1 // -*- C++ -*-
   2 /**
   3  * \file chset.h
   4  * Copyright 2002 the LyX Team
   5  * Read the file COPYING
   6  */
   7
   8 #ifndef CHSET_H
   9 #define CHSET_H
  10
  11 #include <map>
  12 #include <utility>
  13
  14 #include "LString.h"
  15
  16 /// a class for mapping char strings such as "\^{A}" to the integer value
  17 class CharacterSet {
  18 public:
  19         /**
  20          * initialise this charset from the given .cdef file
  21          * param charset the charset to look for
  22          *
  23          * Finds a .cdef file corresponding to the named charset
  24          * and parses it. This function is only intended to be
  25          * called once.
  26          */
  27         bool loadFile(string const & charset);
  28         /// return the name of the current charset
  29         string const & getName() const;
  30         /**
  31          * Return the encoded charset value of the given string.
  32          *
  33          * The bool value is false if an encoding could not be found
  34          * in this charset, and true otherwise.
  35          */
  36         std::pair<bool, int> const encodeString(string const &) const;
  37 private:
  38         /// charset name
  39         string name_;
  40         ///
  41         typedef std::map<string, unsigned char> Cdef;
  42         /// mapping from string representation to encoded value
  43         Cdef map_;
  44 };
  45 #endif