mirror of
https://github.com/sile/hls_m3u8.git
synced 2024-05-18 16:28:20 +00:00
105 lines
2.9 KiB
Rust
105 lines
2.9 KiB
Rust
use std::fmt;
|
|
use std::str::FromStr;
|
|
|
|
use crate::types::Float;
|
|
use crate::utils::{quote, unquote};
|
|
use crate::Error;
|
|
|
|
/// A `Value`.
|
|
#[non_exhaustive]
|
|
#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
|
|
pub enum Value {
|
|
/// A `String`.
|
|
String(String),
|
|
/// A sequence of bytes.
|
|
Hex(Vec<u8>),
|
|
/// A floating point number, that's neither NaN nor infinite.
|
|
Float(Float),
|
|
}
|
|
|
|
impl fmt::Display for Value {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
match &self {
|
|
Self::String(value) => write!(f, "{}", quote(value)),
|
|
Self::Hex(value) => write!(f, "0x{}", hex::encode_upper(value)),
|
|
Self::Float(value) => write!(f, "{}", value),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl FromStr for Value {
|
|
type Err = Error;
|
|
|
|
fn from_str(input: &str) -> Result<Self, Self::Err> {
|
|
if input.starts_with("0x") || input.starts_with("0X") {
|
|
Ok(Self::Hex(
|
|
hex::decode(input.trim_start_matches("0x").trim_start_matches("0X"))
|
|
.map_err(Error::hex)?,
|
|
))
|
|
} else {
|
|
match input.parse() {
|
|
Ok(value) => Ok(Self::Float(value)),
|
|
Err(_) => Ok(Self::String(unquote(input))),
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: Into<Float>> From<T> for Value {
|
|
fn from(value: T) -> Self { Self::Float(value.into()) }
|
|
}
|
|
|
|
impl From<Vec<u8>> for Value {
|
|
fn from(value: Vec<u8>) -> Self { Self::Hex(value) }
|
|
}
|
|
|
|
impl From<String> for Value {
|
|
fn from(value: String) -> Self { Self::String(unquote(value)) }
|
|
}
|
|
|
|
impl From<&str> for Value {
|
|
fn from(value: &str) -> Self { Self::String(unquote(value)) }
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use pretty_assertions::assert_eq;
|
|
|
|
#[test]
|
|
fn test_display() {
|
|
assert_eq!(Value::Float(Float::new(1.1)).to_string(), "1.1".to_string());
|
|
assert_eq!(
|
|
Value::String("&str".to_string()).to_string(),
|
|
"\"&str\"".to_string()
|
|
);
|
|
assert_eq!(
|
|
Value::Hex(vec![1, 2, 3]).to_string(),
|
|
"0x010203".to_string()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_parser() {
|
|
assert_eq!(Value::Float(Float::new(1.1)), "1.1".parse().unwrap());
|
|
assert_eq!(
|
|
Value::String("&str".to_string()),
|
|
"\"&str\"".parse().unwrap()
|
|
);
|
|
assert_eq!(Value::Hex(vec![1, 2, 3]), "0x010203".parse().unwrap());
|
|
assert_eq!(Value::Hex(vec![1, 2, 3]), "0X010203".parse().unwrap());
|
|
assert!("0x010203Z".parse::<Value>().is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn test_from() {
|
|
assert_eq!(Value::from(1_u8), Value::Float(Float::new(1.0)));
|
|
assert_eq!(Value::from("\"&str\""), Value::String("&str".to_string()));
|
|
assert_eq!(
|
|
Value::from("&str".to_string()),
|
|
Value::String("&str".to_string())
|
|
);
|
|
assert_eq!(Value::from(vec![1, 2, 3]), Value::Hex(vec![1, 2, 3]));
|
|
}
|
|
}
|