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    Parle\Lexer::push

    (PECL parle >= 0.5.1)

    Parle\Lexer::push — Add a lexer rule

    说明

    public Parle\Lexer::push(string $regex, int $id): void

    Push a pattern for lexeme recognition.

    参数

    regex

    Regular expression used for token matching.

    id

    Token id. If the lexer instance is meant to be used standalone, this can be an arbitrary number. If the lexer instance is going to be passed to the parser, it has to be an id returned by Parle\Parser::tokenid().

    返回值

    没有返回值。

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