blocks.php
88 lines
| 1 | <?php |
| 2 | |
| 3 | if ( ! function_exists('get_comment_delimited_block_content')) { |
| 4 | /** |
| 5 | * Returns the content of a block, including comment delimiters. |
| 6 | * |
| 7 | * @since 5.3.1 |
| 8 | * |
| 9 | * @param string|null $block_name Block name. Null if the block name is unknown, |
| 10 | * e.g. Classic blocks have their name set to null. |
| 11 | * @param array $block_attributes Block attributes. |
| 12 | * @param string $block_content Block save content. |
| 13 | * |
| 14 | * @return string Comment-delimited block content. |
| 15 | */ |
| 16 | function get_comment_delimited_block_content($block_name, $block_attributes, $block_content) |
| 17 | { |
| 18 | if (is_null($block_name)) { |
| 19 | return $block_content; |
| 20 | } |
| 21 | |
| 22 | $serialized_block_name = strip_core_block_namespace($block_name); |
| 23 | $serialized_attributes = empty($block_attributes) ? '' : serialize_block_attributes($block_attributes) . ' '; |
| 24 | |
| 25 | if (empty($block_content)) { |
| 26 | return sprintf('<!-- wp:%s %s/-->', $serialized_block_name, $serialized_attributes); |
| 27 | } |
| 28 | |
| 29 | return sprintf( |
| 30 | '<!-- wp:%s %s-->%s<!-- /wp:%s -->', |
| 31 | $serialized_block_name, |
| 32 | $serialized_attributes, |
| 33 | $block_content, |
| 34 | $serialized_block_name |
| 35 | ); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | if ( ! function_exists('strip_core_block_namespace')) { |
| 40 | /** |
| 41 | * Returns the block name to use for serialization. This will remove the default |
| 42 | * "core/" namespace from a block name. |
| 43 | * |
| 44 | * @since 5.3.1 |
| 45 | * |
| 46 | * @param string $block_name Original block name. |
| 47 | * |
| 48 | * @return string Block name to use for serialization. |
| 49 | */ |
| 50 | function strip_core_block_namespace($block_name = null) |
| 51 | { |
| 52 | if (is_string($block_name) && 0 === strpos($block_name, 'core/')) { |
| 53 | return substr($block_name, 5); |
| 54 | } |
| 55 | |
| 56 | return $block_name; |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | if ( ! function_exists('serialize_block_attributes')) { |
| 61 | /** |
| 62 | * Given an array of attributes, returns a string in the serialized attributes |
| 63 | * format prepared for post content. |
| 64 | * |
| 65 | * The serialized result is a JSON-encoded string, with unicode escape sequence |
| 66 | * substitution for characters which might otherwise interfere with embedding |
| 67 | * the result in an HTML comment. |
| 68 | * |
| 69 | * @since 5.3.1 |
| 70 | * |
| 71 | * @param array $block_attributes Attributes object. |
| 72 | * |
| 73 | * @return string Serialized attributes. |
| 74 | */ |
| 75 | function serialize_block_attributes($block_attributes) |
| 76 | { |
| 77 | $encoded_attributes = json_encode($block_attributes); |
| 78 | $encoded_attributes = preg_replace('/--/', '\\u002d\\u002d', $encoded_attributes); |
| 79 | $encoded_attributes = preg_replace('/</', '\\u003c', $encoded_attributes); |
| 80 | $encoded_attributes = preg_replace('/>/', '\\u003e', $encoded_attributes); |
| 81 | $encoded_attributes = preg_replace('/&/', '\\u0026', $encoded_attributes); |
| 82 | // Regex: /\\"/ |
| 83 | $encoded_attributes = preg_replace('/\\\\"/', '\\u0022', $encoded_attributes); |
| 84 | |
| 85 | return $encoded_attributes; |
| 86 | } |
| 87 | } |
| 88 |