Analyser class - Documentation for Pelzini

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class Analyser

Generic language analyser. Analysers are used to tranform the language-specific tokens into a set of ParserItems

File: /processor/analyser.php
Namespace: processor
This class is abstract
Available since:

Authors

Josh

Variables

Name	Visibility	Description
`$pos`
`$token_pos`
`$tokens`

Functions

Name	Visibility	Description
findTokenBackwards	protected	Finds a token looking backwards from the current position.
findTokenForwards	protected	Finds a token looking forward from the current position.
getPos	protected	Returns the current position
getToken	protected	Returns a token at a specific position
getTokenPos	protected	Gets the position of the last token found using one of the search functions
movePosBackward	protected	Moves the internal token pointer backwards
movePosForward	protected	Moves the internal token pointer forwards
process	public	Processes a set of token and populates a ParserFile
resetState	public	Resets the analyser ready for more parsing work
setPos	protected	Sets the current position
setTokens	protected	Tells the analyser what tokens it should use

protected findTokenBackwards

Token $Analyser->findTokenBackwards ( mixed $token_types [, mixed $stop_list ] );

Finds a token looking backwards from the current position.
Searching starts before the current token.
The token must be of the type specified

protected findTokenForwards

Token $Analyser->findTokenForwards ( mixed $token_types [, mixed $stop_list ] );

Finds a token looking forward from the current position.
Searching starts after the current token.
The token must be of the type specified

protected getPos

unknown $Analyser->getPos ( );

Returns the current position

protected getToken

unknown $Analyser->getToken ( [ mixed $pos ] );

Returns a token at a specific position
If no position is specified, uses the current position

protected getTokenPos

unknown $Analyser->getTokenPos ( );

Gets the position of the last token found using one of the search functions

protected movePosBackward

void $Analyser->movePosBackward ( [ integer $num ] );

Moves the internal token pointer backwards

protected movePosForward

void $Analyser->movePosForward ( [ integer $num ] );

Moves the internal token pointer forwards

public process

void $Analyser->process ( mixed $tokens , mixed $parser_file );

Processes a set of token and populates a ParserFile

public resetState

void $Analyser->resetState ( );

Resets the analyser ready for more parsing work

protected setPos

void $Analyser->setPos ( mixed $pos );

Sets the current position

protected setTokens

void $Analyser->setTokens ( mixed $tokens );

Tells the analyser what tokens it should use

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