Function parse_csv

src/graphics/vga/pal.rs:80–122

Parse/interpret palettes from CSV files:

(s: &str)

// Parse/interpret palettes from CSV files:
pub fn parse_csv(s: &str) -> Result<Palette, ()>
{
	let color: Vec<_> = s.split('\n').filter_map(|line|
	{
		// Remove any comments:
		let ln = line.split('#').next().unwrap();
		let color: Vec<u8> = ln.split(',').filter_map(|value|
		{
			let radix = if value.contains("0x")
			{
				16
			}
			else
			{
				10
			};
		let value = value.trim().trim_start_matches("0x");
		u8::from_str_radix(value, radix).ok()
	}).collect();

	// RGB
	if color.len() == 3
	{
		Some((color[0], color[1], color[2]))
	}
	else
	{
		None
	}}).collect();

	// 16 COLOR ARRAY
	if let Ok(color) = color.try_into()
	{
		Ok(Palette
		{
			color
		})
	}
	else
	{
		Err(())
	}
}