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<?php |
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|
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if ( ! function_exists( 'get_comment_delimited_block_content' ) ) { |
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/** |
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* Returns the content of a block, including comment delimiters. |
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* |
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* @since 5.3.1 |
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* |
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* @param string|null $block_name Block name. Null if the block name is unknown, |
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* e.g. Classic blocks have their name set to null. |
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* @param array $block_attributes Block attributes. |
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* @param string $block_content Block save content. |
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* |
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* @return string Comment-delimited block content. |
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*/ |
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function get_comment_delimited_block_content( $block_name, $block_attributes, $block_content ) { |
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if ( is_null( $block_name ) ) { |
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return $block_content; |
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} |
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|
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$serialized_block_name = strip_core_block_namespace( $block_name ); |
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$serialized_attributes = empty( $block_attributes ) ? '' : serialize_block_attributes( $block_attributes ) . ' '; |
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|
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if ( empty( $block_content ) ) { |
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return sprintf( '<!-- wp:%s %s/-->', $serialized_block_name, $serialized_attributes ); |
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} |
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|
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return sprintf( |
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'<!-- wp:%s %s-->%s<!-- /wp:%s -->', |
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$serialized_block_name, |
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$serialized_attributes, |
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$block_content, |
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$serialized_block_name |
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); |
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} |
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} |
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|
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if ( ! function_exists( 'strip_core_block_namespace' ) ) { |
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/** |
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* Returns the block name to use for serialization. This will remove the default |
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* "core/" namespace from a block name. |
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* |
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* @since 5.3.1 |
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* |
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* @param string $block_name Original block name. |
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* |
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* @return string Block name to use for serialization. |
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*/ |
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function strip_core_block_namespace( $block_name = null ) { |
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if ( is_string( $block_name ) && 0 === strpos( $block_name, 'core/' ) ) { |
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return substr( $block_name, 5 ); |
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} |
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|
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return $block_name; |
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} |
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} |
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|
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if ( ! function_exists( 'serialize_block_attributes' ) ) { |
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/** |
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* Given an array of attributes, returns a string in the serialized attributes |
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* format prepared for post content. |
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* |
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* The serialized result is a JSON-encoded string, with unicode escape sequence |
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* substitution for characters which might otherwise interfere with embedding |
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* the result in an HTML comment. |
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* |
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* @since 5.3.1 |
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* |
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* @param array $block_attributes Attributes object. |
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* |
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* @return string Serialized attributes. |
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*/ |
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function serialize_block_attributes( $block_attributes ) { |
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$encoded_attributes = json_encode( $block_attributes ); |
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$encoded_attributes = preg_replace( '/--/', '\\u002d\\u002d', $encoded_attributes ); |
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$encoded_attributes = preg_replace( '/</', '\\u003c', $encoded_attributes ); |
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$encoded_attributes = preg_replace( '/>/', '\\u003e', $encoded_attributes ); |
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$encoded_attributes = preg_replace( '/&/', '\\u0026', $encoded_attributes ); |
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// Regex: /\\"/ |
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$encoded_attributes = preg_replace( '/\\\\"/', '\\u0022', $encoded_attributes ); |
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|
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return $encoded_attributes; |
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} |
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} |
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|
