organic/src/parser/keyword.rs

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986 B
Rust
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use nom::branch::alt;
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use nom::bytes::complete::is_not;
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use nom::bytes::complete::tag;
use nom::character::complete::line_ending;
use nom::character::complete::space0;
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use nom::character::complete::space1;
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use nom::combinator::eof;
use nom::combinator::recognize;
use nom::sequence::tuple;
use super::Context;
use crate::error::Res;
use crate::parser::util::start_of_line;
use crate::parser::Keyword;
#[tracing::instrument(ret, level = "debug")]
pub fn keyword<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Keyword<'s>> {
start_of_line(context, input)?;
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// TODO: When key is a member of org-element-parsed-keywords, value can contain the standard set objects, excluding footnote references.
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let (remaining, rule) = recognize(tuple((
space0,
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tag("#+"),
is_not(" \t\r\n:"),
tag(":"),
space1,
is_not("\r\n"),
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alt((line_ending, eof)),
)))(input)?;
Ok((remaining, Keyword { source: rule }))
}