Trait tendril::fmt::CharFormat

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pub unsafe trait CharFormat<'a>: Format {
    type Iter: Iterator<Item = (usize, char)>;

    // Required methods
    unsafe fn char_indices(buf: &'a [u8]) -> Self::Iter;
    fn encode_char<F>(ch: char, cont: F) -> Result<(), ()>
       where F: FnOnce(&[u8]);
}
Expand description

Indicates a format which contains characters from Unicode (all of it, or some proper subset).

Required Associated Types§

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type Iter: Iterator<Item = (usize, char)>

Iterator for characters and their byte indices.

Required Methods§

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unsafe fn char_indices(buf: &'a [u8]) -> Self::Iter

Iterate over the characters of the string and their byte indices.

You may assume the buffer is already validated for Format.

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fn encode_char<F>(ch: char, cont: F) -> Result<(), ()>where F: FnOnce(&[u8]),

Encode the character as bytes and pass them to a continuation.

Returns Err(()) iff the character cannot be represented.

Implementors§