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<?php |
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/** |
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* This class decode style entities from Telegram bot messages (bold, italic, etc.) in text with inline entities that duplicate (when possible) the |
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* exact style the message has originally when was sended to the bot. |
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* All this work is necessary because Telegram returns offset and length of the entities in UTF-16 code units that they've been hard to decode correctly in PHP |
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* |
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* Inspired By: https://github.com/php-telegram-bot/core/issues/544#issuecomment-564950430 |
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* |
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* Example usage: |
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* $entity_decoder = new EntityDecoder('HTML'); |
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* $decoded_text = $entity_decoder->decode($message); |
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* |
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* @author LucaDevelop |
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* @access public |
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* @see https://github.com/LucaDevelop/telegram-entities-decoder |
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*/ |
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namespace lucadevelop\TelegramEntitiesDecoder; |
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class EntityDecoder |
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{ |
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private $entitiesToParse = ['bold', 'italic', 'code', 'pre', 'text_mention', 'text_link', 'strikethrough', 'underline', 'spoiler', 'blockquote', 'custom_emoji']; |
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private $entities = []; |
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private $style; |
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/** |
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* @param string $style Either 'HTML', 'Markdown' or 'MarkdownV2'. |
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* |
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* @throws InvalidArgumentException if the provided style name in invalid. |
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*/ |
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public function __construct(string $style = 'HTML') |
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{ |
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if (in_array($style, ["HTML", "MarkdownV2", "Markdown"])) |
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{ |
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$this->style = $style; |
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} |
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else |
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{ |
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throw new \InvalidArgumentException("Wrong style name"); |
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} |
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} |
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/** |
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* Decode entities and return decoded text |
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* |
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* @param object $message message object to reconstruct Entities from (json decoded without assoc). |
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* @return string |
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*/ |
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public function decode($message): string |
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{ |
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if (!is_object($message)) |
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{ |
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throw new \Exception('message must be an object'); |
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} |
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//Get available entities (for text or for attachment like photo, document, etc.) |
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if (!empty($message->entities)) |
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{ |
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$this->entities = $message->entities; |
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} |
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if (!empty($message->caption_entities)) |
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{ |
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$this->entities = $message->caption_entities; |
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} |
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//Get internal encoding |
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$prevencoding = mb_internal_encoding(); |
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//Set encoding to UTF-8 |
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mb_internal_encoding('UTF-8'); |
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//Get available text (text message or caption for attachment) |
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$textToDecode = (!empty($message->text) ? $message->text : (!empty($message->caption) ? $message->caption : "")); |
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//if the message has no entities or no text return the original text |
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if (empty($this->entities) || $textToDecode == "") { |
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if ($prevencoding) |
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{ |
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mb_internal_encoding($prevencoding); |
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} |
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return $textToDecode; |
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} |
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//split text in char array with UTF-16 code units length |
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$arrayText = $this->splitCharAndLength($textToDecode); |
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$finalText = ""; |
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$openedEntities = []; |
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$currenPosition = 0; |
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//Cycle characters one by one to calculate begins and ends of entities and escape special chars |
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for ($i = 0, $c = count($arrayText); $i < $c; $i++) { |
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$offsetAndLength = $currenPosition + $arrayText[$i]['length']; |
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$entityCheckStart = $this->checkForEntityStart($currenPosition); |
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$entityCheckStop = $this->checkForEntityStop($offsetAndLength); |
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if ($entityCheckStart !== false) |
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{ |
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foreach ($entityCheckStart as $stEntity) |
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{ |
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$startChar = $this->getEntityStartString($stEntity); |
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$openedEntities[] = $stEntity; |
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$finalText .= $startChar; |
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} |
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$finalText .= $this->escapeSpecialChars($arrayText[$i]['char'], true, $openedEntities); |
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} |
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if ($entityCheckStop !== false) |
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{ |
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if ($entityCheckStart === false) |
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{ |
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$finalText .= $this->escapeSpecialChars($arrayText[$i]['char'], true, $openedEntities); |
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} |
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if ($this->style == 'MarkdownV2' && $this->checkMarkdownV2AmbiguousEntities($entityCheckStop)) |
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{ |
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$stopChar = "_\r__"; |
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$finalText .= $stopChar; |
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array_pop($openedEntities); |
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array_pop($openedEntities); |
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} |
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foreach ($entityCheckStop as $stEntity) |
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{ |
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$stopChar = $this->getEntityStopString($stEntity); |
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$finalText .= $stopChar; |
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array_pop($openedEntities); |
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} |
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} |
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if ($entityCheckStart === false && $entityCheckStop === false) |
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{ |
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$isEntityOpen = !empty($openedEntities); |
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$finalText .= $this->escapeSpecialChars($arrayText[$i]['char'], $isEntityOpen, $openedEntities); |
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} |
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$currenPosition = $offsetAndLength; |
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} |
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if (!empty($openedEntities)) |
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{ |
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$openedEntities = array_reverse($openedEntities); |
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foreach ($openedEntities as $oe) |
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{ |
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$finalText .= $this->getEntityStopString($oe); |
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} |
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} |
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if ($prevencoding) |
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{ |
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mb_internal_encoding($prevencoding); |
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} |
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return $finalText; |
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} |
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/** |
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* Extract all entities in an array |
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* |
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* @param object $message message object to reconstruct Entities from (json decoded without assoc). |
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* @return array |
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*/ |
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public function extractAllEntities($message): array |
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{ |
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$entitiesArray = []; |
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if (!is_object($message)) |
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{ |
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throw new \Exception('message must be an object'); |
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} |
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//Get available entities (for text or for attachment like photo, document, etc.) |
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if (!empty($message->entities)) |
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{ |
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$this->entities = $message->entities; |
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} |
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if (!empty($message->caption_entities)) |
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{ |
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$this->entities = $message->caption_entities; |
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} |
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//Get internal encoding |
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$prevencoding = mb_internal_encoding(); |
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//Set encoding to UTF-8 |
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mb_internal_encoding('UTF-8'); |
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//Get available text (text message or caption for attachment) |
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$textToDecode = (!empty($message->text) ? $message->text : (!empty($message->caption) ? $message->caption : "")); |
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//if the message has no entities or no text return the empty array |
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if (empty($this->entities) || $textToDecode == "") { |
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if ($prevencoding) |
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{ |
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mb_internal_encoding($prevencoding); |
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} |
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return $entitiesArray; |
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} |
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$arrayText = $this->splitCharAndLength($textToDecode); |
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$entitytext = ""; |
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$openedEntities = []; |
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$currenPosition = 0; |
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//Cycle characters one by one to calculate begins and ends of entities and escape special chars |
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for ($i = 0, $c = count($arrayText); $i < $c; $i++) { |
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$offsetAndLength = $currenPosition + $arrayText[$i]['length']; |
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$entityCheckStart = $this->checkForEntityStart($currenPosition); |
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$entityCheckStop = $this->checkForEntityStop($offsetAndLength); |
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if ($entityCheckStart !== false) |
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{ |
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foreach ($entityCheckStart as $stEntity) |
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{ |
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$startChar = $this->getEntityStartString($stEntity); |
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$openedEntities[] = $stEntity; |
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$entitytext .= $startChar; |
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} |
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$entitytext .= $this->escapeSpecialChars($arrayText[$i]['char'], true, $openedEntities); |
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} |
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if ($entityCheckStop !== false) |
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{ |
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if ($entityCheckStart === false) |
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{ |
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$entitytext .= $this->escapeSpecialChars($arrayText[$i]['char'], true, $openedEntities); |
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} |
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if ($this->style == 'MarkdownV2' && $this->checkMarkdownV2AmbiguousEntities($entityCheckStop)) |
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{ |
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$stopChar = "_\r__"; |
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$entitytext .= $stopChar; |
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array_pop($openedEntities); |
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array_pop($openedEntities); |
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if(empty($openedEntities)) |
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{ |
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$entitiesArray[] = $entitytext; |
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$entitytext = ""; |
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} |
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} |
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foreach ($entityCheckStop as $stEntity) |
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{ |
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$stopChar = $this->getEntityStopString($stEntity); |
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$entitytext .= $stopChar; |
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array_pop($openedEntities); |
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if(empty($openedEntities)) |
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{ |
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$entitiesArray[] = $entitytext; |
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$entitytext = ""; |
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} |
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} |
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} |
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if ($entityCheckStart === false && $entityCheckStop === false) |
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{ |
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$isEntityOpen = !empty($openedEntities); |
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if($isEntityOpen) |
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{ |
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$entitytext .= $this->escapeSpecialChars($arrayText[$i]['char'], $isEntityOpen, $openedEntities); |
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} |
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} |
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$currenPosition = $offsetAndLength; |
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} |
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if (!empty($openedEntities)) |
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{ |
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$openedEntities = array_reverse($openedEntities); |
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foreach ($openedEntities as $oe) |
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{ |
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$entitytext .= $this->getEntityStopString($oe); |
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$entitiesArray[] = $entitytext; |
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} |
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} |
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if ($prevencoding) |
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{ |
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mb_internal_encoding($prevencoding); |
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} |
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return $entitiesArray; |
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} |
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/** |
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* Split message text in chars array with lengthes |
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*/ |
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protected function splitCharAndLength($string) |
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{ |
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//Split string in individual unicode points |
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$str_split_unicode = preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY); |
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$new_string_split = []; |
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$joiner = false; |
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for ($i = 0, $c = count($str_split_unicode); $i < $c; $i++) |
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{ |
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//loop the array |
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$codepoint = bin2hex(mb_convert_encoding($str_split_unicode[$i], 'UTF-16')); //Get the string rappresentation of the unicode char |
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if ($codepoint == "fe0f" || $codepoint == "1f3fb" || $codepoint == "1f3fc" || $codepoint == "1f3fd" || $codepoint == "1f3fe" || $codepoint == "1f3ff") |
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{ |
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//Manage the modifiers |
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$new_string_split[count($new_string_split) - 1] .= $str_split_unicode[$i]; //Apppend the modifier to the previous char |
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} |
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else |
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{ |
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if ($codepoint == "200d") |
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{ |
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//Manage the Zero Width Joiner |
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$new_string_split[count($new_string_split) - 1] .= $str_split_unicode[$i]; //Apppend the ZWJ to the previous char |
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$joiner = true; |
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} |
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else |
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{ |
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if ($joiner) |
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{ |
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//If previous one was a ZWJ |
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$new_string_split[count($new_string_split) - 1] .= $str_split_unicode[$i]; //Apppend to the previous char |
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$joiner = false; |
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} |
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else |
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{ |
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$new_string_split[] = $str_split_unicode[$i]; //New char |
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} |
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} |
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} |
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} |
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$data = []; |
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foreach ($new_string_split as $s) |
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{ |
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$data[] = ["char" => $s, "length" => $this->getUTF16CodePointsLength($s)]; |
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} |
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return $data; |
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} |
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/** |
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* Apply Telegram escape rules for the choosen style |
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*/ |
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protected function escapeSpecialChars($char, $isEntityOpen, $entities) { |
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if ($this->style == 'Markdown') |
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{ |
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if ($isEntityOpen) |
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{ |
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$entity = $entities[0]; |
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if ($char == '*' || $char == '_') |
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|
{ |
|
314
|
|
|
if ($char == $this->getEntityStartString($entity)) |
|
315
|
|
|
{ |
|
316
|
|
|
return $char."\\".$char.$char; |
|
317
|
|
|
} |
|
318
|
|
|
else |
|
319
|
|
|
{ |
|
320
|
|
|
return $char; |
|
321
|
|
|
} |
|
322
|
|
|
} |
|
323
|
|
|
else |
|
324
|
|
|
{ |
|
325
|
|
|
return $char; |
|
326
|
|
|
} |
|
327
|
|
|
} |
|
328
|
|
|
else |
|
329
|
|
|
{ |
|
330
|
|
|
if ($char == '*' || $char == '_' || $char == '[' || $char == '`') |
|
331
|
|
|
{ |
|
332
|
|
|
return "\\".$char; |
|
333
|
|
|
} |
|
334
|
|
|
else |
|
335
|
|
|
{ |
|
336
|
|
|
return $char; |
|
337
|
|
|
} |
|
338
|
|
|
} |
|
339
|
|
|
} |
|
340
|
|
|
else if ($this->style == 'HTML') |
|
341
|
|
|
{ |
|
342
|
|
|
return ($char == '<' ? '<' : ($char == '>' ? '>' : ($char == '&' ? '&' : $char))); |
|
343
|
|
|
} |
|
344
|
|
|
else if ($this->style == 'MarkdownV2') |
|
345
|
|
|
{ |
|
346
|
|
|
$isBlockquoteOpen = false; |
|
347
|
|
|
foreach ($entities as $entity) { |
|
348
|
|
|
if ($entity->type === 'blockquote') { |
|
349
|
|
|
$isBlockquoteOpen = true; |
|
350
|
|
|
break; |
|
351
|
|
|
} |
|
352
|
|
|
} |
|
353
|
|
|
if($isBlockquoteOpen && $char == "\n") |
|
354
|
|
|
{ |
|
355
|
|
|
return $char.'>'; |
|
356
|
|
|
} |
|
357
|
|
|
else |
|
358
|
|
|
{ |
|
359
|
|
|
return (in_array($char, ['_', '*', '[', ']', '(', ')', '~', '`', '>', '#', '+', '-', '=', '|', '{', '}', '.', '!', '\\']) ? '\\'.$char : $char); |
|
360
|
|
|
} |
|
361
|
|
|
} |
|
362
|
|
|
else |
|
363
|
|
|
{ |
|
364
|
|
|
return $char; |
|
365
|
|
|
} |
|
366
|
|
|
} |
|
367
|
|
|
|
|
368
|
|
|
/** |
|
369
|
|
|
* Get the begin string of the entity for the choosen style |
|
370
|
|
|
*/ |
|
371
|
|
|
protected function getEntityStartString($entity) |
|
372
|
|
|
{ |
|
373
|
|
|
$startString = ''; |
|
374
|
|
|
if ($this->style == 'Markdown') |
|
375
|
|
|
{ |
|
376
|
|
|
switch ($entity->type) |
|
377
|
|
|
{ |
|
378
|
|
|
case 'bold': |
|
379
|
|
|
{ |
|
380
|
|
|
$startString = '*'; |
|
381
|
|
|
break; |
|
382
|
|
|
} |
|
383
|
|
|
case 'italic': |
|
384
|
|
|
{ |
|
385
|
|
|
$startString = '_'; |
|
386
|
|
|
break; |
|
387
|
|
|
} |
|
388
|
|
|
case 'code': |
|
389
|
|
|
{ |
|
390
|
|
|
$startString = '`'; |
|
391
|
|
|
break; |
|
392
|
|
|
} |
|
393
|
|
|
case 'pre': |
|
394
|
|
|
{ |
|
395
|
|
|
$startString = '```'; |
|
396
|
|
|
if (isset($entity->language)) |
|
397
|
|
|
{ |
|
398
|
|
|
$startString .= $entity->language; |
|
399
|
|
|
} |
|
400
|
|
|
$startString .= "\n"; |
|
401
|
|
|
break; |
|
402
|
|
|
} |
|
403
|
|
|
case 'text_mention': |
|
404
|
|
|
case 'text_link': |
|
405
|
|
|
{ |
|
406
|
|
|
$startString = '['; |
|
407
|
|
|
break; |
|
408
|
|
|
} |
|
409
|
|
|
} |
|
410
|
|
|
} |
|
411
|
|
|
else if ($this->style == 'HTML') |
|
412
|
|
|
{ |
|
413
|
|
|
switch ($entity->type) |
|
414
|
|
|
{ |
|
415
|
|
|
case 'bold': |
|
416
|
|
|
{ |
|
417
|
|
|
$startString = '<b>'; |
|
418
|
|
|
break; |
|
419
|
|
|
} |
|
420
|
|
|
case 'italic': |
|
421
|
|
|
{ |
|
422
|
|
|
$startString = '<i>'; |
|
423
|
|
|
break; |
|
424
|
|
|
} |
|
425
|
|
|
case 'underline': |
|
426
|
|
|
{ |
|
427
|
|
|
$startString = '<u>'; |
|
428
|
|
|
break; |
|
429
|
|
|
} |
|
430
|
|
|
case 'strikethrough': |
|
431
|
|
|
{ |
|
432
|
|
|
$startString = '<s>'; |
|
433
|
|
|
break; |
|
434
|
|
|
} |
|
435
|
|
|
case 'spoiler': |
|
436
|
|
|
{ |
|
437
|
|
|
$startString = '<span class="tg-spoiler">'; |
|
438
|
|
|
break; |
|
439
|
|
|
} |
|
440
|
|
|
case 'code': |
|
441
|
|
|
{ |
|
442
|
|
|
$startString = '<code>'; |
|
443
|
|
|
break; |
|
444
|
|
|
} |
|
445
|
|
|
case 'pre': |
|
446
|
|
|
{ |
|
447
|
|
|
$startString = '<pre>'; |
|
448
|
|
|
if (isset($entity->language)) |
|
449
|
|
|
{ |
|
450
|
|
|
$startString .= '<code class="language-'.$entity->language.'">'; |
|
451
|
|
|
} |
|
452
|
|
|
break; |
|
453
|
|
|
} |
|
454
|
|
|
case 'text_mention': |
|
455
|
|
|
{ |
|
456
|
|
|
$startString = '<a href="tg://user?id='.$entity->user->id.'">'; |
|
457
|
|
|
break; |
|
458
|
|
|
} |
|
459
|
|
|
case 'text_link': |
|
460
|
|
|
{ |
|
461
|
|
|
$startString = '<a href="'.$entity->url.'">'; |
|
462
|
|
|
break; |
|
463
|
|
|
} |
|
464
|
|
|
case 'custom_emoji': |
|
465
|
|
|
{ |
|
466
|
|
|
$startString = '<tg-emoji emoji-id="'.$entity->custom_emoji_id.'">'; |
|
467
|
|
|
break; |
|
468
|
|
|
} |
|
469
|
|
|
case 'blockquote': |
|
470
|
|
|
{ |
|
471
|
|
|
$startString = '<blockquote>'; |
|
472
|
|
|
break; |
|
473
|
|
|
} |
|
474
|
|
|
} |
|
475
|
|
|
} |
|
476
|
|
|
else if ($this->style == 'MarkdownV2') |
|
477
|
|
|
{ |
|
478
|
|
|
switch ($entity->type) |
|
479
|
|
|
{ |
|
480
|
|
|
case 'bold': |
|
481
|
|
|
{ |
|
482
|
|
|
$startString = '*'; |
|
483
|
|
|
break; |
|
484
|
|
|
} |
|
485
|
|
|
case 'italic': |
|
486
|
|
|
{ |
|
487
|
|
|
$startString = '_'; |
|
488
|
|
|
break; |
|
489
|
|
|
} |
|
490
|
|
|
case 'spoiler': |
|
491
|
|
|
{ |
|
492
|
|
|
$startString = '||'; |
|
493
|
|
|
break; |
|
494
|
|
|
} |
|
495
|
|
|
case 'code': |
|
496
|
|
|
{ |
|
497
|
|
|
$startString = '`'; |
|
498
|
|
|
break; |
|
499
|
|
|
} |
|
500
|
|
|
case 'pre': |
|
501
|
|
|
{ |
|
502
|
|
|
$startString = '```'; |
|
503
|
|
|
if (isset($entity->language)) |
|
504
|
|
|
{ |
|
505
|
|
|
$startString .= $entity->language; |
|
506
|
|
|
} |
|
507
|
|
|
$startString .= "\n"; |
|
508
|
|
|
break; |
|
509
|
|
|
} |
|
510
|
|
|
case 'underline': |
|
511
|
|
|
{ |
|
512
|
|
|
$startString .= '__'; |
|
513
|
|
|
break; |
|
514
|
|
|
} |
|
515
|
|
|
case 'strikethrough': |
|
516
|
|
|
{ |
|
517
|
|
|
$startString .= '~'; |
|
518
|
|
|
break; |
|
519
|
|
|
} |
|
520
|
|
|
case 'text_mention': |
|
521
|
|
|
case 'text_link': |
|
522
|
|
|
{ |
|
523
|
|
|
$startString = '['; |
|
524
|
|
|
break; |
|
525
|
|
|
} |
|
526
|
|
|
case 'custom_emoji': |
|
527
|
|
|
{ |
|
528
|
|
|
$startString = '!['; |
|
529
|
|
|
break; |
|
530
|
|
|
} |
|
531
|
|
|
case 'blockquote': |
|
532
|
|
|
{ |
|
533
|
|
|
$startString = '>'; |
|
534
|
|
|
break; |
|
535
|
|
|
} |
|
536
|
|
|
} |
|
537
|
|
|
} |
|
538
|
|
|
return $startString; |
|
539
|
|
|
} |
|
540
|
|
|
|
|
541
|
|
|
/** |
|
542
|
|
|
* Check if there are entities that start at the given position and return them |
|
543
|
|
|
*/ |
|
544
|
|
|
protected function checkForEntityStart($pos) |
|
545
|
|
|
{ |
|
546
|
|
|
$entities = []; |
|
547
|
|
|
foreach ($this->entities as $entity) |
|
548
|
|
|
{ |
|
549
|
|
|
if ($entity->offset == $pos) |
|
550
|
|
|
{ |
|
551
|
|
|
if (in_array($entity->type, $this->entitiesToParse)) |
|
552
|
|
|
{ |
|
553
|
|
|
$entities[] = $entity; |
|
554
|
|
|
} |
|
555
|
|
|
} |
|
556
|
|
|
} |
|
557
|
|
|
if (!empty($entities)) { |
|
558
|
|
|
return $entities; |
|
559
|
|
|
} else { |
|
560
|
|
|
return false; |
|
561
|
|
|
} |
|
562
|
|
|
} |
|
563
|
|
|
|
|
564
|
|
|
/** |
|
565
|
|
|
* Get the end string of the entity for the choosen style |
|
566
|
|
|
*/ |
|
567
|
|
|
protected function getEntityStopString($entity) |
|
568
|
|
|
{ |
|
569
|
|
|
$stopString = ''; |
|
570
|
|
|
if ($this->style == 'Markdown') |
|
571
|
|
|
{ |
|
572
|
|
|
switch ($entity->type) |
|
573
|
|
|
{ |
|
574
|
|
|
case 'bold': |
|
575
|
|
|
{ |
|
576
|
|
|
$stopString = '*'; |
|
577
|
|
|
break; |
|
578
|
|
|
} |
|
579
|
|
|
case 'italic': |
|
580
|
|
|
{ |
|
581
|
|
|
$stopString = '_'; |
|
582
|
|
|
break; |
|
583
|
|
|
} |
|
584
|
|
|
case 'code': |
|
585
|
|
|
{ |
|
586
|
|
|
$stopString = '`'; |
|
587
|
|
|
break; |
|
588
|
|
|
} |
|
589
|
|
|
case 'pre': |
|
590
|
|
|
{ |
|
591
|
|
|
$stopString = "\n".'```'; |
|
592
|
|
|
break; |
|
593
|
|
|
} |
|
594
|
|
|
case 'text_mention': |
|
595
|
|
|
{ |
|
596
|
|
|
$stopString = '](tg://user?id='.$entity->user->id.')'; |
|
597
|
|
|
break; |
|
598
|
|
|
} |
|
599
|
|
|
case 'text_link': |
|
600
|
|
|
{ |
|
601
|
|
|
$stopString = ']('.$entity->url.')'; |
|
602
|
|
|
break; |
|
603
|
|
|
} |
|
604
|
|
|
} |
|
605
|
|
|
} |
|
606
|
|
|
else if ($this->style == 'HTML') |
|
607
|
|
|
{ |
|
608
|
|
|
switch ($entity->type) |
|
609
|
|
|
{ |
|
610
|
|
|
case 'bold': |
|
611
|
|
|
{ |
|
612
|
|
|
$stopString = '</b>'; |
|
613
|
|
|
break; |
|
614
|
|
|
} |
|
615
|
|
|
case 'italic': |
|
616
|
|
|
{ |
|
617
|
|
|
$stopString = '</i>'; |
|
618
|
|
|
break; |
|
619
|
|
|
} |
|
620
|
|
|
case 'underline': |
|
621
|
|
|
{ |
|
622
|
|
|
$stopString = '</u>'; |
|
623
|
|
|
break; |
|
624
|
|
|
} |
|
625
|
|
|
case 'strikethrough': |
|
626
|
|
|
{ |
|
627
|
|
|
$stopString = '</s>'; |
|
628
|
|
|
break; |
|
629
|
|
|
} |
|
630
|
|
|
case 'spoiler': |
|
631
|
|
|
{ |
|
632
|
|
|
$stopString = '</span>'; |
|
633
|
|
|
break; |
|
634
|
|
|
} |
|
635
|
|
|
case 'code': |
|
636
|
|
|
{ |
|
637
|
|
|
$stopString = '</code>'; |
|
638
|
|
|
break; |
|
639
|
|
|
} |
|
640
|
|
|
case 'pre': |
|
641
|
|
|
{ |
|
642
|
|
|
if (isset($entity->language)) |
|
643
|
|
|
{ |
|
644
|
|
|
$stopString = '</code>'; |
|
645
|
|
|
} |
|
646
|
|
|
$stopString .= '</pre>'; |
|
647
|
|
|
break; |
|
648
|
|
|
} |
|
649
|
|
|
case 'text_mention': |
|
650
|
|
|
case 'text_link': |
|
651
|
|
|
{ |
|
652
|
|
|
$stopString = '</a>'; |
|
653
|
|
|
break; |
|
654
|
|
|
} |
|
655
|
|
|
case 'custom_emoji': |
|
656
|
|
|
{ |
|
657
|
|
|
$stopString = '</tg-emoji>'; |
|
658
|
|
|
break; |
|
659
|
|
|
} |
|
660
|
|
|
case 'blockquote': |
|
661
|
|
|
{ |
|
662
|
|
|
$stopString = '</blockquote>'; |
|
663
|
|
|
break; |
|
664
|
|
|
} |
|
665
|
|
|
} |
|
666
|
|
|
} |
|
667
|
|
|
else if ($this->style == 'MarkdownV2') |
|
668
|
|
|
{ |
|
669
|
|
|
switch ($entity->type) |
|
670
|
|
|
{ |
|
671
|
|
|
case 'bold': |
|
672
|
|
|
{ |
|
673
|
|
|
$stopString = '*'; |
|
674
|
|
|
break; |
|
675
|
|
|
} |
|
676
|
|
|
case 'italic': |
|
677
|
|
|
{ |
|
678
|
|
|
$stopString = '_'; |
|
679
|
|
|
break; |
|
680
|
|
|
} |
|
681
|
|
|
case 'spoiler': |
|
682
|
|
|
{ |
|
683
|
|
|
$stopString = '||'; |
|
684
|
|
|
break; |
|
685
|
|
|
} |
|
686
|
|
|
case 'code': |
|
687
|
|
|
{ |
|
688
|
|
|
$stopString = '`'; |
|
689
|
|
|
break; |
|
690
|
|
|
} |
|
691
|
|
|
case 'pre': |
|
692
|
|
|
{ |
|
693
|
|
|
$stopString = "\n".'```'; |
|
694
|
|
|
break; |
|
695
|
|
|
} |
|
696
|
|
|
case 'underline': |
|
697
|
|
|
{ |
|
698
|
|
|
$stopString = '__'; |
|
699
|
|
|
break; |
|
700
|
|
|
} |
|
701
|
|
|
case 'strikethrough': |
|
702
|
|
|
{ |
|
703
|
|
|
$stopString = '~'; |
|
704
|
|
|
break; |
|
705
|
|
|
} |
|
706
|
|
|
case 'text_mention': |
|
707
|
|
|
{ |
|
708
|
|
|
$stopString = '](tg://user?id='.$entity->user->id.')'; |
|
709
|
|
|
break; |
|
710
|
|
|
} |
|
711
|
|
|
case 'text_link': |
|
712
|
|
|
{ |
|
713
|
|
|
$stopString = ']('.$entity->url.')'; |
|
714
|
|
|
break; |
|
715
|
|
|
} |
|
716
|
|
|
case 'custom_emoji': |
|
717
|
|
|
{ |
|
718
|
|
|
$stopString = '](tg://emoji?id='.$entity->custom_emoji_id.')'; |
|
719
|
|
|
break; |
|
720
|
|
|
} |
|
721
|
|
|
} |
|
722
|
|
|
} |
|
723
|
|
|
return $stopString; |
|
724
|
|
|
} |
|
725
|
|
|
|
|
726
|
|
|
/** |
|
727
|
|
|
* Check if there are entities that end at the given position and return them (reversed because they are nested) |
|
728
|
|
|
*/ |
|
729
|
|
|
protected function checkForEntityStop($pos) |
|
730
|
|
|
{ |
|
731
|
|
|
$entities = []; |
|
732
|
|
|
foreach ($this->entities as $entity) |
|
733
|
|
|
{ |
|
734
|
|
|
if ($entity->offset + $entity->length == $pos) |
|
735
|
|
|
{ |
|
736
|
|
|
if (in_array($entity->type, $this->entitiesToParse)) |
|
737
|
|
|
{ |
|
738
|
|
|
$entities[] = $entity; |
|
739
|
|
|
} |
|
740
|
|
|
} |
|
741
|
|
|
} |
|
742
|
|
|
if (!empty($entities)) { |
|
743
|
|
|
return array_reverse($entities); |
|
744
|
|
|
} else { |
|
745
|
|
|
return false; |
|
746
|
|
|
} |
|
747
|
|
|
} |
|
748
|
|
|
|
|
749
|
|
|
/** |
|
750
|
|
|
* Check for ambiguous entities in MarkdownV2 style (see Telegram docs) |
|
751
|
|
|
*/ |
|
752
|
|
|
protected function checkMarkdownV2AmbiguousEntities(&$entitiesToCheck) |
|
753
|
|
|
{ |
|
754
|
|
|
$result = false; |
|
755
|
|
|
$newEntities = []; |
|
756
|
|
|
$foundIndex = 0; |
|
757
|
|
|
foreach ($entitiesToCheck as $ec) |
|
758
|
|
|
{ |
|
759
|
|
|
if ($ec->type == 'italic' || $ec->type == 'underline') |
|
760
|
|
|
{ |
|
761
|
|
|
$foundIndex++; |
|
762
|
|
|
} |
|
763
|
|
|
} |
|
764
|
|
|
if ($foundIndex == 2) |
|
765
|
|
|
{ |
|
766
|
|
|
$result = true; |
|
767
|
|
|
foreach ($entitiesToCheck as $ec) |
|
768
|
|
|
{ |
|
769
|
|
|
if ($ec->type != 'italic' && $ec->type != 'underline') |
|
770
|
|
|
{ |
|
771
|
|
|
$newEntities[] = $ec; |
|
772
|
|
|
} |
|
773
|
|
|
} |
|
774
|
|
|
$entitiesToCheck = $newEntities; |
|
775
|
|
|
} |
|
776
|
|
|
return $result; |
|
777
|
|
|
} |
|
778
|
|
|
|
|
779
|
|
|
/** |
|
780
|
|
|
* Count UTF-16 code units of the char passed |
|
781
|
|
|
*/ |
|
782
|
|
|
protected function getUTF16CodePointsLength($char) { |
|
783
|
|
|
$chunks = str_split(bin2hex(mb_convert_encoding($char, 'UTF-16')), 4); |
|
|
|
|
|
|
784
|
|
|
return count($chunks); |
|
|
|
|
|
|
785
|
|
|
} |
|
786
|
|
|
} |
|
787
|
|
|
|
LucaDevelop /
telegram-entities-decoder
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