diff options
Diffstat (limited to 'src/lib.rs')
| -rw-r--r-- | src/lib.rs | 66 |
1 files changed, 62 insertions, 4 deletions
@@ -102,7 +102,7 @@ are 2. a relative expression will be interpreted as appropriate given its order -- the second expression describes a time after the first 3. if neither expression is fully-specified, the first will be interpreted relative to "now" and the -second relative ot the first +second relative to the first The rules of interpretation for relative time expressions in ranges will likely be refined further in the future. @@ -248,7 +248,13 @@ lazy_static! { one_time => <moment_or_period> - two_times -> ("from")? <moment_or_period> <to> <moment_or_period> + two_times -> ("from")? <moment_or_period> <to> <moment_or_period> | <since_time> + + since_time -> <since> <clusivity>? <moment_or_period> + + clusivity -> ("the") <terminus> ("of") + + terminus => <beginning> | <end> to => <up_to> | <through> @@ -340,17 +346,20 @@ lazy_static! { adverb => [["now", "today", "tomorrow", "yesterday"]] am_pm => (?-ib) [["am", "AM", "pm", "PM", "a.m.", "A.M.", "p.m.", "P.M."]] bce => (?-ib) [["bce", "b.c.e.", "bc", "b.c.", "BCE", "B.C.E.", "BC", "B.C."]] + beginning => [["beginning", "start"]] ce => (?-ib) [["ce", "c.e.", "ad", "a.d.", "CE", "C.E.", "AD", "A.D."]] direction -> [["before", "after", "around", "before and after"]] displacement => [["week", "day", "hour", "minute", "second"]] ("s")? // not handling variable-width periods like months or years + end => ("end") from_now_or_ago => [["from now", "ago"]] h12 => (?-B) [(1..=12).into_iter().collect::<Vec<_>>()] h24 => [(1..=24).into_iter().flat_map(|i| vec![format!("{}", i), format!("{:02}", i)]).collect::<Vec<_>>()] minute => (?-B) [ (0..60).into_iter().map(|i| format!("{:02}", i)).collect::<Vec<_>>() ] - modifier => [["this", "last", "next"]] + modifier => [["the", "this", "last", "next"]] named_time => [["noon", "midnight"]] n_year => r(r"\b(?:[1-9][0-9]{0,4}|0)\b") roman => [["nones", "ides", "kalends"]] + since => [["since", "after"]] unit => [["week", "day", "hour", "minute", "second"]] ("s")? universal => [["always", "ever", "all time", "forever", "from beginning to end", "from the beginning to the end"]] up_to => [["to", "until", "up to", "till"]] @@ -548,7 +557,7 @@ lazy_static! { // various phrases all meaning from the first measurable moment to the last adverb => [["now", "today", "yesterday"]] - modifier => [["this", "last"]] + modifier => [["the", "this", "last"]] a_day => [ "Sunday Monday Tuesday Wednesday Thursday Friday Saturday Tues Weds Thurs Tues. Weds. Thurs." @@ -647,6 +656,55 @@ pub fn parse( }; } if let Some(two_times) = parse.name("two_times") { + let mut inclusive = two_times.has("beginning"); + let exclusive = !inclusive && two_times.has("end"); // note this is *explicitly* exclusive + if !(inclusive || exclusive) && (two_times.has("time") || two_times.has("precise_time")) { + // treating "since noon" as including 12:00:00 and "since 2am" as including 14:00:00 + inclusive = true; + } + if let Some(previous_time) = two_times.name("since_time") { + if specific(previous_time) { + return match specific_moment(previous_time, &config) { + Ok((d1, d2)) => { + let t = if inclusive { d1 } else { d2 }; + // if *implicitly* exclusive and we find things misordered, we become inclusive + let t = if !(inclusive || exclusive) && t > config.now { + d1 + } else { + t + }; + if t > config.now { + Err(TimeError::Misordered(format!( + "the inferred times, {} and {}, are misordered", + t, config.now + ))) + } else { + Ok((t, config.now.clone(), false)) + } + } + Err(s) => Err(s), + }; + } + return match relative_moment(previous_time, &config, &config.now, true) { + Ok((d1, d2)) => { + let t = if inclusive { d1 } else { d2 }; + let t = if !(inclusive || exclusive) && t > config.now { + d1 + } else { + t + }; + if t > config.now { + Err(TimeError::Misordered(format!( + "the inferred times, {} and {}, are misordered", + t, config.now + ))) + } else { + Ok((t, config.now.clone(), false)) + } + } + Err(s) => Err(s), + }; + } let first = &two_times.children().unwrap()[0]; let last = &two_times.children().unwrap()[2]; let is_through = two_times.has("through"); |