Parle Parle\RParser 클래스

(PECL parle >= 0.7.0)

소개

---

파서 클래스. 규칙은 즉석에서 정의할 수 있습니다. 완료되면 Parle\RLexer 인스턴스가 토큰 스트림을 전달하는 데 필요합니다.

클래스 개요

---

                  
class 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;

  /* Properties */
  public int $action = 0;
  public int $reduceId = 0;

  /* Methods */
  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
}
                  
                

미리 정의된 상수

---

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

Properties

---

action

작업 클래스 상수 중 하나와 일치하는 현재 파서 작업, 읽기 전용.

reduceId

감소 작업에서 방금 처리된 문법 규칙 ID입니다. 값은 토큰 또는 프로덕션 ID에 해당합니다. 읽기 전용.

목차

---

• 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