Several recognizers. More...

Description

Several recognizers.

Definition at line 306 of file lexer.h.

#include "lexer.h"

Inheritance diagram for elementa::parsing::FSMLexer::Recognizers:

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Collaboration diagram for elementa::parsing::FSMLexer::Recognizers:

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Public Types
using	BaseVector = std::vector< TermRecog >
	Shortcut. More...

using	ListOfInds = std::list< size_type >
	A list with indexes into some recognizers of the vector. More...

Public Attributes
T	elements
	STL member.

Public Member Functions
	Recognizers (const Recognizers &)=delete

	Recognizers (Recognizers &&)=delete

Recognizers &	operator= (const Recognizers &)=delete

Recognizers &	operator= (Recognizers &&)=delete

FSMClass::Ptr	find (TokenId tid) const
	Return one of the recognizers, or a false (null) one if not found. More...

const ListOfInds &	active (void) const noexcept
	Return the indexes of FSMs that are active right now. More...

void	reset (void)
	Initiate the recognition through all the FSMs, all becoming active. More...

void	feed (char o)
	Feed FSMs with the given observation O. More...

size_type	whoWins (void) const
	Return the recognizer that has recognized all characters fed so far. More...

void	debug (void) const
	Print in console the state of recognizers.

Member Typedef Documentation

◆ BaseVector

using elementa::parsing::FSMLexer::Recognizers::BaseVector = std::vector<TermRecog>

Shortcut.

Definition at line 311 of file lexer.h.

◆ ListOfInds

using elementa::parsing::FSMLexer::Recognizers::ListOfInds = std::list<size_type>

A list with indexes into some recognizers of the vector.

Definition at line 317 of file lexer.h.

Member Function Documentation

◆ find()

FSMClass::Ptr elementa::parsing::FSMLexer::Recognizers::find ( TokenId tid ) const

inline

Return one of the recognizers, or a false (null) one if not found.

This is O(n) in the length of RS.

Definition at line 326 of file lexer.h.

◆ active()

const ListOfInds & elementa::parsing::FSMLexer::Recognizers::active ( void ) const

inlinenoexcept

Return the indexes of FSMs that are active right now.

Definition at line 333 of file lexer.h.

◆ reset()

void elementa::parsing::FSMLexer::Recognizers::reset ( void )

Initiate the recognition through all the FSMs, all becoming active.

It must be called before starting feeding characters, and it can be called again at any time to restart the process or when the FSMs are changed.

◆ feed()

void elementa::parsing::FSMLexer::Recognizers::feed ( char o )

Feed FSMs with the given observation O.

Those FSMs that do not consume it become deactivated. This is O(n), being n the current number of active FSMs.

◆ whoWins()

size_type elementa::parsing::FSMLexer::Recognizers::whoWins ( void ) const

Return the recognizer that has recognized all characters fed so far.

Return >= size of the recognizers vector if none.

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

elementa/parsing/lexer.h