Struct LfnBuffer

pub struct LfnBuffer<'a> { /* private fields */ }

Used to store a Long File Name

Implementations

impl<'a> LfnBuffer<'a>

pub fn new(storage: &'a mut [u8]) -> LfnBuffer<'a>

Create a new, empty, LFN Buffer using the given mutable slice as its storage.

pub fn clear(&mut self)

Empty out this buffer

pub fn push(&mut self, buffer: &[u16; 13])

Push the 13 UTF-16 codepoints into this string.

We assume they are pushed last-chunk-first, as you would find them on disk.

Any chunk starting with a half of a surrogate pair has that saved for the next call.

[de00, 002e, 0074, 0078, 0074, 0000, ffff, ffff, ffff, ffff, ffff, ffff, ffff]
[0041, 0042, 0030, 0031, 0032, 0033, 0034, 0035, 0036, 0037, 0038, 0039, d83d]

Would map to

0041 0042 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 1f600 002e 0074 0078 0074, or

"AB0123456789😀.txt"

pub fn as_str(&self) -> &str

View this LFN buffer as a string-slice

If the buffer overflowed while parsing the LFN, or if this buffer is empty, you get an empty string.

Trait Implementations

impl<'a> Debug for LfnBuffer<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.