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use crate::Parse;
use torin::gaps::Gaps;
#[derive(Debug, PartialEq, Eq)]
pub struct ParseGapError;
impl Parse for Gaps {
type Err = ParseGapError;
fn parse(value: &str) -> Result<Self, Self::Err> {
let mut paddings = Gaps::default();
let mut values = value.split_ascii_whitespace();
match values.clone().count() {
// Same in each directions
1 => {
paddings.fill_all(
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
);
}
// By vertical and horizontal
2 => {
// Vertical
paddings.fill_vertical(
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
);
// Horizontal
paddings.fill_horizontal(
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
)
}
// Individual vertical but same horizontal
3 => {
let top = values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?;
let left_and_right = values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?;
let bottom = values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?;
paddings = Gaps::new(top, left_and_right, bottom, left_and_right);
}
// Each directions
4 => {
paddings = Gaps::new(
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
values
.next()
.ok_or(ParseGapError)?
.parse::<f32>()
.map_err(|_| ParseGapError)?,
);
}
_ => {}
}
Ok(paddings)
}
}