mustache/php/vendor/Mustache/Tokenizer.php

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<?php

/*
 * This file is part of Mustache.php.
 *
 * (c) 2012 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Mustache Tokenizer class.
 *
 * This class is responsible for turning raw template source into a set of Mustache tokens.
 */
class Mustache_Tokenizer
{

    // Finite state machine states
    const IN_TEXT     = 0;
    const IN_TAG_TYPE = 1;
    const IN_TAG      = 2;

    // Token types
    const T_SECTION      = '#';
    const T_INVERTED     = '^';
    const T_END_SECTION  = '/';
    const T_COMMENT      = '!';
    const T_PARTIAL      = '>';
    const T_PARTIAL_2    = '<';
    const T_DELIM_CHANGE = '=';
    const T_ESCAPED      = '_v';
    const T_UNESCAPED    = '{';
    const T_UNESCAPED_2  = '&';
    const T_TEXT         = '_t';
    const T_PRAGMA       = '%';

    // Valid token types
    private static $tagTypes = array(
        self::T_SECTION      => true,
        self::T_INVERTED     => true,
        self::T_END_SECTION  => true,
        self::T_COMMENT      => true,
        self::T_PARTIAL      => true,
        self::T_PARTIAL_2    => true,
        self::T_DELIM_CHANGE => true,
        self::T_ESCAPED      => true,
        self::T_UNESCAPED    => true,
        self::T_UNESCAPED_2  => true,
        self::T_PRAGMA       => true,
    );

    // Interpolated tags
    private static $interpolatedTags = array(
        self::T_ESCAPED      => true,
        self::T_UNESCAPED    => true,
        self::T_UNESCAPED_2  => true,
    );