Parle\RParser::precedence

(PECL parle >= 0.7.0)

Parle\RParser::precedence — Declare a precedence rule

说明

public Parle\RParser::precedence ( string $tok ) : void

Declares a precedence rule for a fictious terminal symbol. This rule can be later used in the specific grammar rules.

参数

tok

Token name.

返回值

没有返回值。

相关文章
php parle the parle rparser classphp parle lexer process next lexer rulephp parle lexer finalize the lexer rule setphp parle parser declare a token with left associativityphp parle parser declare a token with no associativityphp parle parser declare a precedence rulephp parle parser add a grammar rulephp parle parser declare a token with right associativityphp parle rlexer add a lexer rulephp parle rparser process next parser rulephp parle rparser declare a token with left associativityphp parle rparser declare a token with no associativityphp parle rparser declare a precedence rulephp parle rparser add a grammar rulephp parle rparser declare a token with right associativityphp parle rparser retrieve a matching part of a rulephp parle rparser declare a tokenphp parle rparser get token idphp parle rparser trace the parser operationphp parle rparser validate input
关注编程学问公众号