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<?php
namespace Parle;
class RParser
{
/* Constants */
const ACTION_ERROR = 0 ;
const ACTION_SHIFT = 1 ;
const ACTION_REDUCE = 2 ;
const ACTION_GOTO = 3 ;
const ACTION_ACCEPT = 4 ;
const ERROR_SYNTAX = 0 ;
const ERROR_NON_ASSOCIATIVE = 1 ;
const ERROR_UNKOWN_TOKEN = 2 ;
/* Properties */
/**
* @var int Current parser action that matches one of the action class constants, readonly.
* @property-read
*/
public $action = 0;
/**
* @var int Grammar rule id just processed in the reduce action. The value corresponds either to a token or to a production id. Readonly.
* @property-read
*/
public $reduceId = 0;
/* Methods */
/**
* Process next parser rule.
*
* @link https://php.net/manual/en/parle-rparser.advance.php
* @return void
*/
public function advance() : void {}
/**
* Finalize the grammar rules
*
* Any tokens and grammar rules previously added are finalized.
* The rule set becomes readonly and the parser is ready to start.
*
* @link https://php.net/manual/en/parle-rparser.build.php
* @return void
*/
public function build() : void {}
/**
* Consume the data for parsing.
*
* @link https://php.net/manual/en/parle-rparser.consume.php
* @param string $data Data to be parsed.
* @param Lexer $lexer A lexer object containing the lexing rules prepared for the particular grammar.
* @return void
*/
public function consume(string $data, Lexer $lexer) : void {}
/**
* Dump the current grammar to stdout.
*
* @link https://php.net/manual/en/parle-rparser.dump.php
* @return void
*/
public function dump() : void {}
/**
* Retrieve the error information in case Parle\RParser::action() returned the error action.
*
* @link https://php.net/manual/en/parle-rparser.errorinfo.php
* @return ErrorInfo
*/
public function errorInfo() : ErrorInfo {}
/**
* Declare a terminal with left associativity.
*
* @link https://php.net/manual/en/parle-rparser.left.php
* @param string $token Token name.
* @return void
*/
public function left(string $token) : void {}
/**
* Declare a token with no associativity
*
* Declare a terminal, that cannot appear more than once in the row.
*
* @link https://php.net/manual/en/parle-rparser.nonassoc.php
* @param string $token Token name.
* @return void
*/
public function nonassoc(string $token) : void {}
/**
* Declare a precedence rule
*
* Declares a precedence rule for a fictitious terminal symbol.
* This rule can be later used in the specific grammar rules.
*
* @link https://php.net/manual/en/parle-rparser.precedence.php
* @param string $token
* @return void
*/
public function precedence(string $token) : void {}
/**
* Push a grammar rule.
*
* The production id returned can be used later in the parsing process to identify the rule matched.
*
* @link https://php.net/manual/en/parle-rparser.push.php
* @param string $name Rule name.
* @param string $rule The rule to be added. The syntax is Bison compatible.
* @return int Returns integer representing the rule index.
*/
public function push(string $name, string $rule) : int {}
/**
* Reset parser state using the given token id.
*
* @link https://php.net/manual/en/parle-rparser.reset.php
* @param int $tokenId Token id.
* @return void
*/
public function reset(int $tokenId) : void {}
/**
* Declare a token with right-associativity
*
* @link https://php.net/manual/en/parle-rparser.right.php
* @param string $token Token name.
* @return void
*/
public function right(string $token) : void {}
/**
* Retrieve a matching part of a rule
*
* Retrieve a part of the match by a rule.
* This method is equivalent to the pseudo variable functionality in Bison.
*
* @link https://php.net/manual/en/parle-rparser.sigil.php
* @param int $idx Match index, zero based.
* @return string Returns a string with the matched part.
*/
public function sigil(int $idx) : string {}
/**
* Declare a token
*
* Declare a terminal to be used in the grammar.
*
* @link https://php.net/manual/en/parle-rparser.token.php
* @param string $token Token name.
* @return void
*/
public function token(string $token) : void {}
/**
* Get token id
*
* Retrieve the id of the named token.
*
* @link https://php.net/manual/en/parle-rparser.tokenid.php
* @param string $token Name of the token as used in Parle\Parser::token().
* @return int Returns integer representing the token id.
* @see Parser::token()
*/
public function tokenId(string $token) : int {}
/**
* Trace the parser operation
*
* Retrieve the current parser operation description.
* This can be especially useful for studying the parser and to optimize the grammar.
*
* @link https://php.net/manual/en/parle-rparser.trace.php
* @return string Returns a string with the trace information.
*/
public function trace() : string {}
/**
* Validate an input string.
*
* The string is parsed internally, thus this method is useful for the quick input validation.
*
* @link https://php.net/manual/en/parle-rparser.validate.php
* @param string $data String to be validated.
* @param Lexer $lexer A lexer object containing the lexing rules prepared for the particular grammar.
* @return bool Returns boolean witnessing whether the input chimes or not with the defined rules.
*/
public function validate(string $data, Lexer $lexer) : bool {}
}
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