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More monadic way of reading input

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This commit is contained in:
Kevin Liu 2016-12-22 03:40:24 -08:00
parent a04a905f60
commit 08429ed64c
1 changed files with 4 additions and 6 deletions
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10
src/util.rs
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@ -26,12 +26,10 @@ fn prompt_yes<T: AsRef<str>>(prompt: T) -> bool {
println!("{} (y/N)", prompt.as_ref());
}
let stdin = BufReader::new(io::stdin());
if let Some(c) = stdin.chars().next() {
if let Ok(c) = c {
return c == 'y' || c == 'Y';
}
}
false
stdin.chars().next()
.and_then(|c| c.ok())
.and_then(|c| Some(c == 'y' || c == 'Y'))
.unwrap_or(false)
}
/// Add a numbered extension to duplicate filenames to avoid overwriting files.