RFC: Add recognize_till
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This is a variant of `repeat_till` that recognizes the repeated portion of the input instead of accumulating it. See: [“Recognizing `repeat_till0` to `()` without the suffix”][1] [1]: winnow-rs#336 (reply in thread)
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Moved to draft as I take a fairly strict policy to close (or move to draft) PRs that have not formerly been accepted
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@epage That's OK by me. Would you like me to open an issue for recognizing the repeated part of a |
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You are welcome to create an issue from that discussion. |
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This is a variant of
repeat_tillthat recognizes the repeated portion of the input instead of accumulating it.See: “Recognizing
repeat_till0to()without the suffix”.I have found this combinator useful in my own code for recognizing ambiguous delimiters.
This code needs to be cleaned up before being merged (we'd probably want a
Rangeargument and an infinite loop check, for example), so consider this a proof of concept. If you're on board with the idea, let me know what the next steps are. Otherwise, feel free to close this PR. Thanks!