semantics::Token_map Class Reference

#include <Token_map.h>

Inheritance diagram for semantics::Token_map:

Public Types
typedef std::string	Key_type
typedef size_t	Val_type
typedef boost::bimap< Key_type, Val_type >	Map
typedef Map::value_type	Key_val_pair
typedef Map::right_value_type	Val_key_pair
typedef Map::const_iterator	const_iterator

Public Member Functions
	Token_map ()
	construct an empty token map More...
virtual	~Token_map ()
	translate key into code More...
virtual Val_type	get_code (const Token_map::Key_type &key)
	look up code associated with key, or return UNKNOWN_TOKEN_VAL More...
virtual Val_type	encode (const Key_type &key, bool learn=false)
	look up code associated with key, adding it if not found More...
virtual const Key_type &	decode (const Val_type &val)
	look up key associated with code More...
virtual Val_type	next_val ()
	gets the next unused code available (e.g., for UNKNOWN) More...
const_iterator	begin ()
const_iterator	end ()

Static Public Attributes
static const Val_type	UNKNOWN_TOKEN_VAL = 1

Protected Member Functions
virtual const Key_type &	unknown_key ()=0

Protected Attributes
Map	map_
Val_type	next_val_

Friends
std::ostream &	operator<< (std::ostream &os, Token_map &map)

Member Typedef Documentation

typedef Map::const_iterator semantics::Token_map::const_iterator

typedef std::string semantics::Token_map::Key_type

typedef Map::value_type semantics::Token_map::Key_val_pair

typedef boost::bimap<Key_type, Val_type> semantics::Token_map::Map

typedef Map::right_value_type semantics::Token_map::Val_key_pair

typedef size_t semantics::Token_map::Val_type

Constructor & Destructor Documentation

semantics::Token_map::Token_map ( )

inline

construct an empty token map

virtual semantics::Token_map::~Token_map ( )

inlinevirtual

translate key into code

Returns

returns code associated with key, with constant UNKNOWN code

Member Function Documentation

const_iterator semantics::Token_map::begin ( )

inline

const Token_map::Key_type & semantics::Token_map::decode ( const Val_type &  val )

virtual

look up key associated with code

Token_map::Val_type semantics::Token_map::encode ( const Key_type &  key, bool  learn = false  )

virtual

look up code associated with key, adding it if not found

const_iterator semantics::Token_map::end ( )

inline

Token_map::Val_type semantics::Token_map::get_code ( const Token_map::Key_type &  key )

virtual

look up code associated with key, or return UNKNOWN_TOKEN_VAL

virtual Val_type semantics::Token_map::next_val ( )

inlinevirtual

gets the next unused code available (e.g., for UNKNOWN)

virtual const Key_type& semantics::Token_map::unknown_key ( )

protectedpure virtual

Implemented in semantics::Semantic_db, semantics::Lexicon_db, and semantics::Nonterminal_db.

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, Token_map &  map  )

friend

Member Data Documentation

Map semantics::Token_map::map_

protected

Val_type semantics::Token_map::next_val_

protected

const Token_map::Val_type semantics::Token_map::UNKNOWN_TOKEN_VAL = 1

static

---

The documentation for this class was generated from the following files:

• /work/kobus/src/lib/semantics/Token_map.h
• /work/kobus/src/lib/semantics/Token_map.cpp