xtl_char_symbol Class Reference

#include <xtl_primary.h>

Inheritance diagram for xtl_char_symbol:

[legend]Collaboration diagram for xtl_char_symbol:

[legend]List of all members.

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Detailed Description

Implements behavior of symbol() lexeme inside CTTL grammar expressions.

Definition at line 580 of file xtl_primary.h.

Public Member Functions
template<typename UniverseT>
size_t	find (UniverseT &edge_)
	Implements grammar evaluation method for symbol search algorithm, starting at the upper boundary of the parseable universe.
template<typename UniverseT>
size_t	bang_find (UniverseT &edge_)
	Implements grammar evaluation method for repeatable search algorithm, starting at the upper boundary of the parseable universe.
template<typename UniverseT>
size_t	internal_match (UniverseT &edge_)
	Implements match grammar evaluation method.

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Member Function Documentation

size_t bang_find (  UniverseT &  edge_  )  [inline]

Implements grammar evaluation method for repeatable search algorithm, starting at the upper boundary of the parseable universe. UniverseT Template parameter specifying type of the parseable universe. Can be either cttl::const_edge or cttl::edge. Parameters: edge_  reference to the parseable universe. Postcondition: If method succeeds, the universe, specified by the edge_ parameter, gets consumed accordingly to the size of the matched symbol. Returns: evaluation result: if method succeeds, it returns absolute offset corresponding to the upper boundary of the matched symbol. Otherwise, it returns UniverseT::string_T::npos, indicating that the evaluation method has failed. Remarks: CTTL lexeme delegates implementation of its bang_find() to xtl_primary<xtl_char_symbol>::match(). Reimplemented from xtl_primary< xtl_char_symbol >. Definition at line 651 of file xtl_primary.h.

size_t find (  UniverseT &  edge_  )  [inline]

Implements grammar evaluation method for symbol search algorithm, starting at the upper boundary of the parseable universe. UniverseT Template parameter specifying type of the parseable universe. Can be either cttl::const_edge or cttl::edge. Parameters: edge_  reference to the parseable universe. Postcondition: If method succeeds, the universe, specified by the edge_ parameter, gets consumed accordingly to the size of the matched symbol. Returns: evaluation result: if method succeeds, it returns absolute offset corresponding to the upper boundary of the matched symbol. Otherwise, it returns UniverseT::string_T::npos, indicating that the evaluation method has failed. Remarks: This lexeme delegates implementation of its find() to xtl_primary<xtl_char_symbol>::match(). Reimplemented from xtl_primary< xtl_char_symbol >. Definition at line 616 of file xtl_primary.h.

size_t internal_match (  UniverseT &  edge_  )  [inline]

Implements match grammar evaluation method. UniverseT Template parameter specifying type of the parseable universe. Can be either cttl::const_edge or cttl::edge. Parameters: edge_  reference to the parseable universe. Postcondition: If method succeeds, the universe, specified by the edge_ parameter, is consumed accordingly to the size of the matched symbol: // 1. The ending position of the matched symbol is set: edge_.first.offset( end_offset ); // 2. Starting position of the matched symbol is returned: return begin_offset; Returns: evaluation result: if method succeeds, it returns absolute offset corresponding to the upper boundary of the matched symbol. Otherwise, it returns UniverseT::string_T::npos, indicating that the evaluation method has failed. Definition at line 687 of file xtl_primary.h.

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

• xtl_primary.h

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