Potentially valid, not always valid.
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@ -84,12 +84,12 @@ fn parse_keep_or_drop<'a>(input: &'a str, count: u32) -> IResult<&'a str, KeepOr
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use ParsedKeepOrDrop::*;
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let keep_drop: KeepOrDrop = match (keep, drop) {
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//Valid Keep expression.
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//Potential valid Keep expression.
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(Keep(keep), NotPresent) => match keep.parse().map_err(|_| too_big!(input))? {
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_i if _i > count || _i == 0 => Ok(KeepOrDrop::None),
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i => Ok(KeepOrDrop::Keep(i)),
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},
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//Valid Drop expression.
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//Potential valid Drop expression.
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(NotPresent, Drop(drop)) => match drop.parse().map_err(|_| too_big!(input))? {
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_i if _i >= count => Ok(KeepOrDrop::None),
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i => Ok(KeepOrDrop::Drop(i)),
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