Description
What kind of feature are you missing? Where do you notice a shortcoming of PTB?
The discussion with TG in tdlib/telegram-bot-api#515 has made it clear that we should encourage users to work more with MessageEntities rather than with our text_html/markdown helpers. Since this is sometimes cumbersome, convenience functionality for working with ME is surely advisable and we've made a step into that direction with #4323 .
What I'd like to see in addition is convenience functionality for catenating text with entities as initially touched in tdlib/telegram-bot-api#515 (comment)
Describe the solution you'd like
new class methods
ME.shift_entities(entities: Sequence[ME], by: str | int) -> Sequence[ME]: shifts the entities by the specified length or the utf-16 length of the string ofbyis a string. This would be useful for adding a prefix to a message with entitiesME.concatetane(first: tuple[str, Sequence[ME]], second: tuple[str, Sequence[ME]]) -> tuple[str, Sequence[ME]]: Concatenates text and entities. UsesME.shift_entitiesinternally
Describe alternatives you've considered
ME.concatenate could be skipped in a first step as it can be implemented using shift_entities
Additional context
No response
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