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by LegionMammal978
341 days ago
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It creates a Split<'_> iterator using the IsWhitespace function as the pattern. As the user calls .next() on the outer SplitWhitespace<'_>, it calls .next() on the inner Split<'_>, which yields slices "a", "", "", and "b", and the filtered iterator reduces them to "a" and "b". (But as mentioned, this doesn't perform any allocations, since each slice is just a pointer + length into the original string.) |
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