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More flexible time parsing.

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shy 2021-04-18 07:13:37 +02:00
parent e9e1806aa2
commit a1ffb07125
1 changed files with 15 additions and 25 deletions
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40
src/alarm.rs
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@ -139,7 +139,6 @@ impl AlarmRoster {
// Parse string and add as alarm.
pub fn add(&mut self, input: &String) -> Result<(), &'static str> {
let mut index = 0;
let mut time: u32 = 0;
let mut label: String;
let time_str: &str;
@ -155,28 +154,19 @@ impl AlarmRoster {
}
// Parse input into seconds.
if time_str.contains(':') {
for sub in time_str.rsplit(':') {
match sub.parse::<u32>() {
// Valid.
Ok(d) if d < 60 && index < 3 => time += d * 60u32.pow(index),
// Passes as u32, but does not fit into time range.
Ok(_) => return Err("Could not parse value as time."),
// Ignore failure caused by an empty string.
// TODO: Match error kind when stable. See documentation
// for std::num::ParseIntError and
// https://github.com/rust-lang/rust/issues/22639
Err(_) if sub.is_empty() => (),
// Could not parse to u32.
Err(_) => return Err("Could not parse value as integer."),
}
index += 1;
}
} else {
// Parse as seconds only.
match time_str.parse::<u32>() {
Ok(d) => time = d,
Err(_) => return Err("Could not parse as integer."),
for (i, sub) in time_str.rsplit(':').enumerate() {
match sub.parse::<u32>() {
// Too many segments.
Ok(_) if i > 2 => return Err("Too many segments to parse as time."),
// Valid.
Ok(d) => time += d * 60u32.pow(i as u32),
// Ignore failure caused by an empty string.
// TODO: Match error kind when stable. See documentation
// for std::num::ParseIntError and
// https://github.com/rust-lang/rust/issues/22639
Err(_) if sub.is_empty() => (),
// Could not parse to u32.
Err(_) => return Err("Could not parse value as integer."),
}
}
@ -187,9 +177,9 @@ impl AlarmRoster {
if time >= 24 * 60 * 60 {
return Err("Values >24h not supported.");
};
// Filter out double entries.
// Filter out duplicate entries.
if self.list.iter().any(|a| a.time == time) {
return Err("Already exists.");
return Err("Already exists. Duplicate entries not supported.");
}
// Label will never change from now on.