The Parle\RLexer class

    (PECL parle >= 0.5.1)

    Introduction

    Multistate lexer class. Lexemes can be defined on the fly. If the particular lexer instance is meant to be used with Parle\RParser, the token IDs need to be taken from there. Otherwise, arbitrary token IDs can be supplied. Note, that Parle\Parser is not compatible with this lexer.

    Class synopsis

    class Parle\RLexer {
    /* Constants */
    const int ICASE = 1;
    const int DOT_NOT_LF = 2;
    const int DOT_NOT_CRLF = 4;
    const int SKIP_WS = 8;
    const int MATCH_ZERO_LEN = 16;
    /* Properties */
    public bool $bol = false;
    public int $flags = 0;
    public int $state = 0;
    public int $marker = 0;
    public int $cursor = 0;
    /* Methods */
    public advance(): void
    public build(): void
    public callout(int $id, callable $callback): void
    public consume(string $data): void
    public dump(): void
    public getToken(): Parle\Token
    public insertMacro(string $name, string $regex): void
    public push(string $regex, int $id): void
    public push(
        string $state,
        string $regex,
        int $id,
        string $newState
    ): void
    public push(string $state, string $regex, string $newState): void
    public pushState(string $state): int
    public reset(int $pos): void
    }

    Properties

    bol

    Start of input flag.

    flags

    Lexer flags.

    state

    Current lexer state, readonly.

    marker

    Position of the latest token match, readonly.

    cursor

    Current input offset, readonly.

    Table of Contents

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top