woocommerce/apigen/libs/Texy/texy/libs/TexyModifier.php

<?php

/**
 * Texy! - human-readable text to HTML converter.
 *
 * @copyright  Copyright (c) 2004, 2010 David Grudl
 * @license    GNU GENERAL PUBLIC LICENSE version 2 or 3
 * @link       http://texy.info
 * @package    Texy
 */



/**
 * Modifier processor.
 *
 * Modifiers are texts like .(title)[class1 class2 #id]{color: red}>^
 *   .         starts with dot
 *   (...)     title or alt modifier
 *   [...]     classes or ID modifier
 *   {...}     inner style modifier
 *   < > <> =  horizontal align modifier
 *   ^ - _     vertical align modifier
 *
 * @copyright  Copyright (c) 2004, 2010 David Grudl
 * @package    Texy
 */
final class TexyModifier extends TexyObject
{
	/** @var string */
	public $id;

	/** @var array of classes (as keys) */
	public $classes = array();

	/** @var array of CSS styles */
	public $styles = array();

	/** @var array of HTML element attributes */
	public $attrs = array();

	/** @var string */
	public $hAlign;

	/** @var string */
	public $vAlign;

	/** @var string */
	public $title;

	/** @var string */
	public $cite;

	/** @var array  list of properties which are regarded as HTML element attributes */
	public static $elAttrs = array(
		'abbr'=>1,'accesskey'=>1,'align'=>1,'alt'=>1,'archive'=>1,'axis'=>1,'bgcolor'=>1,'cellpadding'=>1,
		'cellspacing'=>1,'char'=>1,'charoff'=>1,'charset'=>1,'cite'=>1,'classid'=>1,'codebase'=>1,'codetype'=>1,
		'colspan'=>1,'compact'=>1,'coords'=>1,'data'=>1,'datetime'=>1,'declare'=>1,'dir'=>1,'face'=>1,'frame'=>1,
		'headers'=>1,'href'=>1,'hreflang'=>1,'hspace'=>1,'ismap'=>1,'lang'=>1,'longdesc'=>1,'name'=>1,
		'noshade'=>1,'nowrap'=>1,'onblur'=>1,'onclick'=>1,'ondblclick'=>1,'onkeydown'=>1,'onkeypress'=>1,
		'onkeyup'=>1,'onmousedown'=>1,'onmousemove'=>1,'onmouseout'=>1,'onmouseover'=>1,'onmouseup'=>1,'rel'=>1,
		'rev'=>1,'rowspan'=>1,'rules'=>1,'scope'=>1,'shape'=>1,'size'=>1,'span'=>1,'src'=>1,'standby'=>1,
		'start'=>1,'summary'=>1,'tabindex'=>1,'target'=>1,'title'=>1,'type'=>1,'usemap'=>1,'valign'=>1,
		'value'=>1,'vspace'=>1,
	);



	/**
	 * @param  string modifier to parse
	 */
	public function __construct($mod = NULL)
	{
		$this->setProperties($mod);
	}



	public function setProperties($mod)
	{
		if (!$mod) return;

		$p = 0;
		$len = strlen($mod);

		while ($p < $len)
		{
			$ch = $mod[$p];

			if ($ch === '(') { // title
				$a = strpos($mod, ')', $p) + 1;
				$this->title = Texy::unescapeHtml(trim(substr($mod, $p + 1, $a - $p - 2)));
				$p = $a;

			} elseif ($ch === '{') { // style & attributes
				$a = strpos($mod, '}', $p) + 1;
				foreach (explode(';', substr($mod, $p + 1, $a - $p - 2)) as $value) {
					$pair = explode(':', $value, 2);
					$prop = strtolower(trim($pair[0]));
					if ($prop === '' || !isset($pair[1])) continue;
					$value = trim($pair[1]);

					if (isset(self::$elAttrs[$prop])) // attribute
						$this->attrs[$prop] = $value;
					elseif ($value !== '')  // style
						$this->styles[$prop] = $value;
				}
				$p = $a;

			} elseif ($ch === '[') { // classes & ID
				$a = strpos($mod, ']', $p) + 1;
				$s = str_replace('#', ' #', substr($mod, $p + 1, $a - $p - 2));
				foreach (explode(' ', $s) as $value) {
					if ($value === '') continue;

					if ($value{0} === '#')
						$this->id = substr($value, 1);
					else
						$this->classes[$value] = TRUE;
				}
				$p = $a;
			}
			// alignment
			elseif ($ch === '^') { $this->vAlign = 'top'; $p++; }
			elseif ($ch === '-') { $this->vAlign = 'middle'; $p++; }
			elseif ($ch === '_') { $this->vAlign = 'bottom'; $p++; }
			elseif ($ch === '=') { $this->hAlign = 'justify'; $p++; }
			elseif ($ch === '>') { $this->hAlign = 'right'; $p++; }
			elseif (substr($mod, $p, 2) === '<>') { $this->hAlign = 'center'; $p+=2; }
			elseif ($ch === '<') { $this->hAlign = 'left'; $p++; }
			else { break; }
		}
	}



	/**
	 * Decorates TexyHtml element.
	 * @param  Texy   base Texy object
	 * @param  TexyHtml  element to decorate
	 * @return void
	 */
	public function decorate($texy, $el)
	{
		$elAttrs = & $el->attrs;

		// tag & attibutes
		$tmp = $texy->allowedTags; // speed-up
		if (!$this->attrs) {

		} elseif ($tmp === Texy::ALL) {
			$elAttrs = $this->attrs;
			$el->validateAttrs($texy->dtd);

		} elseif (is_array($tmp) && isset($tmp[$el->getName()])) {
			$tmp = $tmp[$el->getName()];

			if ($tmp === Texy::ALL) {
				$elAttrs = $this->attrs;

			} elseif (is_array($tmp) && count($tmp)) {
				$tmp = array_flip($tmp);
				foreach ($this->attrs as $key => $value)
					if (isset($tmp[$key])) $el->attrs[$key] = $value;
			}
			$el->validateAttrs($texy->dtd);
		}

		// title
		if ($this->title !== NULL)
			$elAttrs['title'] = $texy->typographyModule->postLine($this->title);

		// classes & ID
		if ($this->classes || $this->id !== NULL) {
			$tmp = $texy->_classes; // speed-up
			if ($tmp === Texy::ALL) {
				foreach ($this->classes as $value => $foo) $elAttrs['class'][] = $value;
				$elAttrs['id'] = $this->id;
			} elseif (is_array($tmp)) {
				foreach ($this->classes as $value => $foo)
					if (isset($tmp[$value])) $elAttrs['class'][] = $value;

				if (isset($tmp['#' . $this->id])) $elAttrs['id'] = $this->id;
			}
		}

		// styles
		if ($this->styles) {
			$tmp = $texy->_styles;  // speed-up
			if ($tmp === Texy::ALL) {
				foreach ($this->styles as $prop => $value) $elAttrs['style'][$prop] = $value;
			} elseif (is_array($tmp)) {
				foreach ($this->styles as $prop => $value)
					if (isset($tmp[$prop])) $elAttrs['style'][$prop] = $value;
			}
		}

		// horizontal align
		if ($this->hAlign) {
			if (empty($texy->alignClasses[$this->hAlign])) {
				$elAttrs['style']['text-align'] = $this->hAlign;
			} else {
				$elAttrs['class'][] = $texy->alignClasses[$this->hAlign];
			}
		}

		// vertical align
		if ($this->vAlign) {
			if (empty($texy->alignClasses[$this->vAlign])) {
				$elAttrs['style']['vertical-align'] = $this->vAlign;
			} else {
				$elAttrs['class'][] = $texy->alignClasses[$this->vAlign];
			}
		}

		return $el;
	}

}