organic/src/parser/clock.rs
2023-10-09 18:02:36 -04:00

96 lines
3.7 KiB
Rust

use nom::branch::alt;
use nom::bytes::complete::tag;
use nom::bytes::complete::tag_no_case;
use nom::character::complete::digit1;
use nom::character::complete::space0;
use nom::character::complete::space1;
use nom::combinator::map;
use nom::combinator::opt;
use nom::combinator::recognize;
use nom::sequence::tuple;
use super::org_source::OrgSource;
use super::timestamp::inactive_date_range_timestamp;
use super::timestamp::inactive_time_range_timestamp;
use super::timestamp::inactive_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::Clock;
use crate::types::ClockStatus;
use crate::types::Timestamp;
#[cfg_attr(
feature = "tracing",
tracing::instrument(ret, level = "debug", skip(context))
)]
pub(crate) fn clock<'b, 'g, 'r, 's>(
context: RefContext<'b, 'g, 'r, 's>,
input: OrgSource<'s>,
) -> Res<OrgSource<'s>, Clock<'s>> {
start_of_line(input)?;
let (remaining, _leading_whitespace) = space0(input)?;
let (remaining, _clock) = tag_no_case("clock:")(remaining)?;
let (remaining, _gap_whitespace) = space1(remaining)?;
let (remaining, (timestamp, duration)) = clock_timestamp(context, remaining)?;
let (remaining, _) = 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,
Clock {
source: source.into(),
timestamp,
duration,
status: if duration.is_some() {
ClockStatus::Closed
} else {
ClockStatus::Running
},
},
))
}
#[cfg_attr(
feature = "tracing",
tracing::instrument(ret, level = "debug", skip(context))
)]
fn clock_timestamp<'b, 'g, 'r, 's>(
context: RefContext<'b, 'g, 'r, 's>,
input: OrgSource<'s>,
) -> Res<OrgSource<'s>, (Timestamp<'s>, Option<&'s str>)> {
// TODO: This would be more efficient if we didn't throw away the parse result of the first half of an active/inactive date range timestamp if the parse fails (as in, the first thing active_date_range_timestamp parses is a active_timestamp but then we throw that away if it doesn't turn out to be a full active_date_range_timestamp despite the active_timestamp parse being completely valid). I am going with the simplest/cleanest approach for the first implementation.
alt((
// Order matters here. If its a date range, we need to parse the entire date range instead of just the first timestamp. If its a time range, we need to make sure thats parsed as a time range instead of as the "rest" portion of a single timestamp.
map(
parser_with_context!(inactive_time_range_timestamp)(context),
|timestamp| (timestamp, None),
),
map(
tuple((
parser_with_context!(inactive_date_range_timestamp)(context),
opt(duration),
)),
|(timestamp, duration)| (timestamp, duration.map(Into::<&str>::into)),
),
map(
parser_with_context!(inactive_timestamp)(context),
|timestamp| (timestamp, None),
),
))(input)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn duration<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
let (remaining, _) = tuple((tag("=>"), space1))(input)?;
let (remaining, duration) = recognize(tuple((digit1, tag(":"), digit1)))(remaining)?;
Ok((remaining, duration))
}