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# FAQ
## How to use LocatedSpan with my own input type?
LocatedSpan has been designed to wrap any input type. By default it wraps `&str` and `&[u8]` but it should work with any other types.
To do so, all you need is to ensure that your input type implements these traits:
- `nom::InputLength`
- `nom::Slice`
- `nom::InputIter`
- `nom::Compare`
- `nom::Offset`
- `nom::CompareResult`
- `nom::FindSubstring`
- `nom::ParseTo`
- `nom::AsBytes`
And ensure that what represents a char in your input type implements `nom::FindToken`.
Then you may use all the `impl_*` macros exposed by the library (see the [crate documentation](https://docs.rs/nom_locate/)).
## `get_column` is not accurate
Your input probably doesn't have ASCII characters only. You'd probably better use `get_column_utf8` when your input is contains UTF-8 extensions, having in mind that it is much slower.
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