47 lines
1.0 KiB
Rust
47 lines
1.0 KiB
Rust
//! Demonstrates how to block read characters or a full line.
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//! Just note that crossterm is not required to do this and can be done with `io::stdin()`.
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//!
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//! cargo run --example event-read-char-line
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use std::io;
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use keyfork_crossterm::event::{self, Event, KeyCode, KeyEvent};
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/// Read a character from input.
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pub fn read_char() -> io::Result<char> {
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loop {
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if let Event::Key(KeyEvent {
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code: KeyCode::Char(c),
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..
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}) = event::read()?
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{
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return Ok(c);
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}
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}
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}
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/// Read a line from input.
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pub fn read_line() -> io::Result<String> {
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let mut line = String::new();
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while let Event::Key(KeyEvent { code, .. }) = event::read()? {
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match code {
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KeyCode::Enter => {
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break;
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}
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KeyCode::Char(c) => {
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line.push(c);
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}
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_ => {}
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}
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}
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Ok(line)
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}
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fn main() {
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println!("read line:");
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println!("{:?}", read_line());
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println!("read char:");
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println!("{:?}", read_char());
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}
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