Sapphirus/SimpleByteUnit
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Xavier Moffett 2023-09-27 01:12:35 -04:00
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src/input.rs Normal file
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/*
* SimpleByteUnit
*
* Copyright 2023 Xaver R.M.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
use crate::simplebyteunit::*;
pub fn parse_input(s: &str) -> Result<(f64, f64, i8, bool), Error> {
let v = match s.to_lowercase() {
string if string.ends_with("kib") => ("kib", K, true),
string if string.ends_with("mib") => ("mib", M, true),
string if string.ends_with("gib") => ("gib", G, true),
string if string.ends_with("tib") => ("tib", T, true),
string if string.ends_with("pib") => ("pib", P, true),
string if string.ends_with("eib") => ("eib", E, true),
string if string.ends_with("kb") => ("kb", K, false),
string if string.ends_with("mb") => ("mb", M, false),
string if string.ends_with("gb") => ("gb", G, false),
string if string.ends_with("tb") => ("tb", T, false),
string if string.ends_with("pb") => ("pb", P, false),
string if string.ends_with("eb") => ("eb", E, false),
string if string.ends_with("b") => ("b", B, false),
_ => Err(Error::InvalidUnit(format!("{s} contains no supported nor valid byteunits.")))?
};
let s = s.to_lowercase()
.replace(v.0, "")
.replace(" ", "");
let multiplier = match v.2 { true => 1024.0, false => 1000.0 };
match s.parse() {
Ok(val) => Ok((val, multiplier, v.1, v.2)),
Err(_) => Err(Error::ErroroneousInput(format!("{s} contains an invalid float or integer value.")))
}
}
pub fn input_arithmetic(input: (f64, f64, i8, bool)) -> (bool, i64) {
let iec = input.3;
let power_of = input.2;
let multiplier = input.1;
let mut value = input.0;
let mut power: i8 = 0;
while power < power_of {
value = value * multiplier;
power += 1;
}
(iec, value as i64)
}