Struct InputBuffer 

pub struct InputBuffer { /* private fields */ }

Buffer for collecting keyboard input

Invariant: All characters are stored in lowercase ASCII for case-insensitive matching. Both push() and From<&str> enforce this by converting input.

Implementations

impl InputBuffer

pub fn new() -> Self

Create a new empty buffer

pub fn push(&mut self, c: char) -> bool

Pushes a character to the buffer.

Returns true if the character was added, false if the buffer is full.

pub fn pop(&mut self) -> Option<char>

Removes and returns the last character.

pub fn clear(&mut self)

Clears the buffer.

pub fn is_empty(&self) -> bool

Returns true if the buffer is empty.

pub fn len(&self) -> usize

Returns the number of characters in the buffer.

pub fn first_char(&self) -> Option<char>

Returns the first character for determining launch key.

pub fn as_str(&self) -> String

Returns the buffer contents as a string.

pub fn chars(&self) -> &[char]

Returns the characters as a slice.

Trait Implementations

impl Clone for InputBuffer

fn clone(&self) -> InputBuffer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for InputBuffer

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

Formats the value using the given formatter.

impl Default for InputBuffer

fn default() -> InputBuffer

Returns the “default value” for a type.

impl Display for InputBuffer

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

Formats the value using the given formatter.

impl From<&str> for InputBuffer

fn from(s: &str) -> Self

Converts to this type from the input type.