44 lines
1.3 KiB
Rust
44 lines
1.3 KiB
Rust
use nom::branch::alt;
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use nom::bytes::complete::is_not;
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use nom::bytes::complete::tag;
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use nom::bytes::complete::tag_no_case;
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use nom::character::complete::line_ending;
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use nom::character::complete::space0;
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use nom::character::complete::space1;
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use nom::combinator::eof;
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use nom::combinator::not;
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use nom::combinator::peek;
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use nom::combinator::recognize;
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use nom::sequence::tuple;
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use super::org_source::OrgSource;
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use super::Context;
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use crate::error::Res;
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use crate::parser::util::start_of_line;
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use crate::parser::Keyword;
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#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
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pub fn keyword<'r, 's>(
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_context: Context<'r, 's>,
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input: OrgSource<'s>,
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) -> Res<OrgSource<'s>, Keyword<'s>> {
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start_of_line(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((
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space0,
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tag("#+"),
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not(peek(tag_no_case("call"))),
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not(peek(tag_no_case("begin"))),
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is_not(" \t\r\n:"),
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tag(":"),
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alt((recognize(tuple((space1, is_not("\r\n")))), space0)),
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alt((line_ending, eof)),
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)))(input)?;
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Ok((
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remaining,
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Keyword {
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source: rule.into(),
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},
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))
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}
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