CardParse

Derive a trait that allows creating a struct from a fixed width text data source by specifying the location of data as field attributes in the struct

```rust use cardparse::prelude::*;

static TLE_STRING: &str = r#"ISS (ZARYA) 1 25544U 98067A 08264.51782528 -.00002182 00000-0 -11606-4 0 2927 2 25544 51.6416 247.4627 0006703 130.5360 325.0288 15.72125391563537"#;

[allow(dead_code)]

[derive(cardparse::CardParse)]

struct TwoLineElement { // If end is missing then read to end of line // but only as far as max - otherwise return // Err(cardparse::ParseError::SourceTooShort{..}) #[location(line=1,start=1,max=24)] name: String, #[location(line=2,start=1,end=1)] linenumberone: String, #[location(line=2,start=3,end=7)] satellitecatalognumberone: String, #[location(line=2,start=8,end=8)] classification: String, #[location(line=2,start=10,end=11)] launchyear: String, #[location(line=2,start=12,end=14)] launchnumber: String, #[location(line=2,start=15,end=17)] launchpiece: String, #[location(line=2,start=19,end=20)] epochyear: String, #[location(line=2,start=21,end=32)] epochday: String, #[location(line=2,start=34,end=43)] ballisticcoefficient: String, #[location(line=2,start=45,end=52)] secondderivativeofmeanmotion: String, #[location(line=2,start=54,end=61)] dragterm: String, #[location(line=2,start=63,end=63)] ephemeristype: String, #[location(line=2,start=65,end=68)] elementsetnumber: String, #[location(line=2,start=69,end=69)] checksum: String, #[location(line=3,start=01,end=01)] linenumbertwo: String, #[location(line=3,start=03,end=07)] satellitecatalognumbertwo: String, #[location(line=3,start=09,end=16)] inclination: String, #[location(line=3,start=18,end=25)] rightascensionofascendingnode: String, #[location(line=3,start=27,end=33)] eccentricity: String, #[location(line=3,start=35,end=42)] argumentofperigee: String, #[location(line=3,start=44,end=51)] meananomaly: String, #[location(line=3,start=53,end=63)] meanmotion: String, #[location(line=3,start=64,end=68)] revolutionnumberatepoch: String, #[location(line=3,start=69,end=69)] checksum_two: String, }

fn main() { let tle = TwoLineElement::cardparse(TLESTRING).unwrap(); asserteq!(tle.name, "ISS (ZARYA)"); }