29 lines
643 B
Rust
29 lines
643 B
Rust
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use std::fmt::Display;
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use std::io::{stdin, stdout, Write};
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use log::{debug, error, info, trace, warn};
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pub fn some_non_empty(str: &str) -> Option<String> {
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if str.is_empty() { None } else { Some(str.to_owned()) }
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}
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pub fn or_print<T, U: Display>(result: Result<T, U>) -> Option<T> {
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match result {
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Ok(value) => Some(value),
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Err(error) => {
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warn!("{}", error);
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None
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}
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}
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}
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pub fn prompt(prompt: &str) -> Option<String> {
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print!("{} ", prompt);
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stdout().flush().unwrap();
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match stdin().lines().next() {
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Some(Ok(line)) => Some(line),
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_ => None,
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}
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}
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