The Parle\RParser class

(PECL parle >= 0.7.0)

简介

Parser class. Rules can be defined on the fly. Once finalized, a Parle\RLexer instance is required to deliver the token stream.

类摘要

Parle\RParser {

/* Constants */

const int ACTION_ERROR = 0 ;

const int ACTION_SHIFT = 1 ;

const int ACTION_REDUCE = 2 ;

const int ACTION_GOTO = 3 ;

const int ACTION_ACCEPT = 4 ;

const int ERROR_SYNTAX = 0 ;

const int ERROR_NON_ASSOCIATIVE = 1 ;

const int ERROR_UNKNOWN_TOKEN = 2 ;

/* 属性 */

public int $action = 0 ;

public int $reduceId = 0 ;

/* 方法 */

public advance ( ) : void

public build ( ) : void

public consume ( string $data , Parle\RLexer $rlexer ) : void

public dump ( ) : void

public errorInfo ( ) : Parle\ErrorInfo

public left ( string $tok ) : void

public nonassoc ( string $tok ) : void

public precedence ( string $tok ) : void

public push ( string $name , string $rule ) : int

public reset ( int $tokenId = ? ) : void

public right ( string $tok ) : void

public sigil ( int $idx = ? ) : string

public token ( string $tok ) : void

public tokenId ( string $tok ) : int

public trace ( ) : string

public validate ( string $data , Parle\RLexer $lexer ) : bool

}

预定义常量

Parle\RParser::ACTION_ERROR
Parle\RParser::ACTION_SHIFT
Parle\RParser::ACTION_REDUCE
Parle\RParser::ACTION_GOTO
Parle\RParser::ACTION_ACCEPT
Parle\RParser::ERROR_SYNTAX
Parle\RParser::ERROR_NON_ASSOCIATIVE
Parle\RParser::ERROR_UNKNOWN_TOKEN

属性

action: Current parser action that matches one of the action class constants, readonly.
reduceId: Grammar rule id just processed in the reduce action. The value corresponds either to a token or to a production id. Readonly.

Parle\RParser::advance — Process next parser rule
Parle\RParser::build — Finalize the grammar rules
Parle\RParser::consume — Consume the data for processing
Parle\RParser::dump — Dump the grammar
Parle\RParser::errorInfo — Retrieve the error information
Parle\RParser::left — Declare a token with left-associativity
Parle\RParser::nonassoc — Declare a token with no associativity
Parle\RParser::precedence — Declare a precedence rule
Parle\RParser::push — Add a grammar rule
Parle\RParser::reset — Reset parser state
Parle\RParser::right — Declare a token with right-associativity
Parle\RParser::sigil — Retrieve a matching part of a rule
Parle\RParser::token — Declare a token
Parle\RParser::tokenId — Get token id
Parle\RParser::trace — Trace the parser operation
Parle\RParser::validate — Validate input

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The Parle\RParser class

简介

类摘要

预定义常量

属性

Table of Contents

User Contributed Notes