orgize/src/elements/drawer.rs
2019-08-10 20:27:17 +08:00

55 lines
1.3 KiB
Rust

use std::borrow::Cow;
use crate::parsers::{eol, line, take_lines_while};
use nom::{
bytes::complete::{tag, take_while1},
sequence::delimited,
IResult,
};
#[cfg_attr(test, derive(PartialEq))]
#[cfg_attr(feature = "ser", derive(serde::Serialize))]
#[derive(Debug)]
pub struct Drawer<'a> {
pub name: Cow<'a, str>,
}
impl Drawer<'_> {
#[inline]
pub(crate) fn parse(input: &str) -> IResult<&str, (Drawer<'_>, &str)> {
let (input, name) = delimited(
tag(":"),
take_while1(|c: char| c.is_ascii_alphabetic() || c == '-' || c == '_'),
tag(":"),
)(input)?;
let (input, _) = eol(input)?;
let (input, contents) =
take_lines_while(|line| !line.trim().eq_ignore_ascii_case(":END:"))(input)?;
let (input, _) = line(input)?;
Ok((input, (Drawer { name: name.into() }, contents)))
}
pub fn into_owned(self) -> Drawer<'static> {
Drawer {
name: self.name.into_owned().into(),
}
}
}
#[test]
fn parse() {
assert_eq!(
Drawer::parse(":PROPERTIES:\n :CUSTOM_ID: id\n :END:"),
Ok((
"",
(
Drawer {
name: "PROPERTIES".into()
},
" :CUSTOM_ID: id\n"
)
))
)
}