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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[FEATURE] tool for translating unicode offsets to utf-16 offsets of MessageEntity","articleBody":"### What kind of feature are you missing? Where do you notice a shortcoming of PTB?\r\n\r\nI want to send a message with customized `MessageEntity`. At first I assumed ptb already handled the unicode -\u003e utf-16 translation. It generally works for most texts, but turns out it will fail if there are some emojis in the message.\r\n\r\n### Describe the solution you'd like\r\n\r\nA new class `UnicodeMessageEntity` is needed. Currently I have a simple solution:\r\n```python\r\n    def fix_entities_offset(self):\r\n        for text, entities in zip(self.texts, self.entities):\r\n            cur_index = 0\r\n            accumulated_len = 0\r\n            for i, entity in enumerate(entities):\r\n                cur_text = text[cur_index:entity.offset]\r\n                accumulated_len += len(cur_text.encode('utf-16-le'))\r\n                cur_off = accumulated_len // 2\r\n                cur_text = text[entity.offset:entity.offset+entity.length]\r\n                accumulated_len += len(cur_text.encode('utf-16-le'))\r\n                cur_len = accumulated_len // 2 - cur_off\r\n                entities[i] = MessageEntity(offset=cur_off, length=cur_len, type=entity.type, language=entity.language)\r\n                cur_index = entity.offset + entity.length\r\n```\r\nIt would be nice if this can be automatically applied when send messages, when entity object is an instance of `UnicodeMessageEntity`.\r\n\r\n### Describe alternatives you've considered\r\n\r\n_No response_\r\n\r\n### Additional context\r\n\r\n_No response_","author":{"url":"https://github.com/Antares0982","@type":"Person","name":"Antares0982"},"datePublished":"2024-06-22T18:21:39.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/4319/python-telegram-bot/issues/4319"}