<h3>Düzenle: class-wp-style-engine-css-declarations.php</h3>
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/**
 * Style Engine: WP_Style_Engine_CSS_Declarations class
 *
 * @package WordPress
 * @subpackage StyleEngine
 * @since 6.1.0
 */

/**
 * Core class used for style engine CSS declarations.
 *
 * Holds, sanitizes, processes, and prints CSS declarations for the style engine.
 *
 * @since 6.1.0
 */
#[AllowDynamicProperties]
class WP_Style_Engine_CSS_Declarations {

	/**
	 * An array of CSS declarations (property =&gt; value pairs).
	 *
	 * @since 6.1.0
	 *
	 * @var string[]
	 */
	protected $declarations = array();

	/**
	 * Constructor for this object.
	 *
	 * If a `$declarations` array is passed, it will be used to populate
	 * the initial `$declarations` prop of the object by calling add_declarations().
	 *
	 * @since 6.1.0
	 *
	 * @param string[] $declarations Optional. An associative array of CSS definitions,
	 *                               e.g. `array( &quot;$property&quot; =&gt; &quot;$value&quot;, &quot;$property&quot; =&gt; &quot;$value&quot; )`.
	 *                               Default empty array.
	 */
	public function __construct( $declarations = array() ) {
		$this-&gt;add_declarations( $declarations );
	}

	/**
	 * Adds a single declaration.
	 *
	 * @since 6.1.0
	 *
	 * @param string $property The CSS property.
	 * @param string $value    The CSS value.
	 * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods.
	 */
	public function add_declaration( $property, $value ) {
		// Sanitizes the property.
		$property = $this-&gt;sanitize_property( $property );
		// Bails early if the property is empty.
		if ( empty( $property ) ) {
			return $this;
		}

		// Trims the value. If empty, bail early.
		$value = trim( $value );
		if ( &#039;&#039; === $value ) {
			return $this;
		}

		// Adds the declaration property/value pair.
		$this-&gt;declarations[ $property ] = $value;

		return $this;
	}

	/**
	 * Removes a single declaration.
	 *
	 * @since 6.1.0
	 *
	 * @param string $property The CSS property.
	 * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods.
	 */
	public function remove_declaration( $property ) {
		unset( $this-&gt;declarations[ $property ] );
		return $this;
	}

	/**
	 * Adds multiple declarations.
	 *
	 * @since 6.1.0
	 *
	 * @param string[] $declarations An array of declarations.
	 * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods.
	 */
	public function add_declarations( $declarations ) {
		foreach ( $declarations as $property =&gt; $value ) {
			$this-&gt;add_declaration( $property, $value );
		}
		return $this;
	}

	/**
	 * Removes multiple declarations.
	 *
	 * @since 6.1.0
	 *
	 * @param string[] $properties Optional. An array of properties. Default empty array.
	 * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods.
	 */
	public function remove_declarations( $properties = array() ) {
		foreach ( $properties as $property ) {
			$this-&gt;remove_declaration( $property );
		}
		return $this;
	}

	/**
	 * Gets the declarations array.
	 *
	 * @since 6.1.0
	 *
	 * @return string[] The declarations array.
	 */
	public function get_declarations() {
		return $this-&gt;declarations;
	}

	/**
	 * Filters a CSS property + value pair.
	 *
	 * @since 6.1.0
	 *
	 * @param string $property The CSS property.
	 * @param string $value    The value to be filtered.
	 * @param string $spacer   Optional. The spacer between the colon and the value.
	 *                         Default empty string.
	 * @return string The filtered declaration or an empty string.
	 */
	protected static function filter_declaration( $property, $value, $spacer = &#039;&#039; ) {
		$filtered_value = wp_strip_all_tags( $value, true );
		if ( &#039;&#039; !== $filtered_value ) {
			return safecss_filter_attr( &quot;{$property}:{$spacer}{$filtered_value}&quot; );
		}
		return &#039;&#039;;
	}

	/**
	 * Filters and compiles the CSS declarations.
	 *
	 * @since 6.1.0
	 *
	 * @param bool $should_prettify Optional. Whether to add spacing, new lines and indents.
	 *                              Default false.
	 * @param int  $indent_count    Optional. The number of tab indents to apply to the rule.
	 *                              Applies if `prettify` is `true`. Default 0.
	 * @return string The CSS declarations.
	 */
	public function get_declarations_string( $should_prettify = false, $indent_count = 0 ) {
		$declarations_array  = $this-&gt;get_declarations();
		$declarations_output = &#039;&#039;;
		$indent              = $should_prettify ? str_repeat( &quot;\t&quot;, $indent_count ) : &#039;&#039;;
		$suffix              = $should_prettify ? &#039; &#039; : &#039;&#039;;
		$suffix              = $should_prettify &amp;&amp; $indent_count &gt; 0 ? &quot;\n&quot; : $suffix;
		$spacer              = $should_prettify ? &#039; &#039; : &#039;&#039;;

		foreach ( $declarations_array as $property =&gt; $value ) {
			$filtered_declaration = static::filter_declaration( $property, $value, $spacer );
			if ( $filtered_declaration ) {
				$declarations_output .= &quot;{$indent}{$filtered_declaration};$suffix&quot;;
			}
		}

		return rtrim( $declarations_output );
	}

	/**
	 * Sanitizes property names.
	 *
	 * @since 6.1.0
	 *
	 * @param string $property The CSS property.
	 * @return string The sanitized property name.
	 */
	protected function sanitize_property( $property ) {
		return sanitize_key( $property );
	}
}
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