organic/src/parser/planning.rs

use nom::branch::alt;
use nom::bytes::complete::tag;
use nom::bytes::complete::tag_no_case;
use nom::character::complete::space0;
use nom::character::complete::space1;
use nom::multi::many1;
use nom::sequence::tuple;

use super::org_source::OrgSource;
use super::timestamp::timestamp;
use super::util::maybe_consume_trailing_whitespace_if_not_exiting;
use super::util::org_line_ending;
use crate::context::parser_with_context;
use crate::context::RefContext;
use crate::error::Res;
use crate::parser::util::get_consumed;
use crate::parser::util::start_of_line;
use crate::types::Planning;

#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
pub(crate) fn planning<'b, 'g, 'r, 's>(
    context: RefContext<'b, 'g, 'r, 's>,
    input: OrgSource<'s>,
) -> Res<OrgSource<'s>, Planning<'s>> {
    start_of_line(input)?;
    let (remaining, _leading_whitespace) = space0(input)?;
    let (remaining, _planning_parameters) =
        many1(parser_with_context!(planning_parameter)(context))(remaining)?;
    let (remaining, _trailing_ws) = tuple((space0, org_line_ending))(remaining)?;

    let (remaining, _trailing_ws) =
        maybe_consume_trailing_whitespace_if_not_exiting(context, remaining)?;
    let source = get_consumed(input, remaining);

    Ok((
        remaining,
        Planning {
            source: source.into(),
        },
    ))
}

#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn planning_parameter<'b, 'g, 'r, 's>(
    context: RefContext<'b, 'g, 'r, 's>,
    input: OrgSource<'s>,
) -> Res<OrgSource<'s>, OrgSource<'s>> {
    let (remaining, _planning_type) = alt((
        tag_no_case("DEADLINE"),
        tag_no_case("SCHEDULED"),
        tag_no_case("CLOSED"),
    ))(input)?;
    let (remaining, _gap) = tuple((tag(":"), space1))(remaining)?;
    let (remaining, _timestamp) = timestamp(context, remaining)?;
    let source = get_consumed(input, remaining);
    Ok((remaining, source))
}