duckling 0.4.0

A Rust port of Facebook's Duckling library for parsing natural language into structured data
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60

use crate::pattern::{dim, regex};
use crate::types::{DimensionKind, Rule, TokenData};

use super::{DistanceData, DistanceUnit};

fn distance_data(td: &TokenData) -> Option<&DistanceData> {
    match td {
        TokenData::Distance(d) => Some(d),
        _ => None,
    }
}

pub fn rules() -> Vec<Rule> {
    vec![
        Rule {
            name: "<dist> centimeters".to_string(),
            pattern: vec![
                dim(DimensionKind::Distance),
                regex("(cm|cent(í|i)m(etros?))"),
            ],
            production: Box::new(|nodes| {
                let d = distance_data(&nodes[0].token_data)?;
                Some(TokenData::Distance(
                    d.clone().with_unit(DistanceUnit::Centimetre),
                ))
            }),
        },
        Rule {
            name: "<dist> meters".to_string(),
            pattern: vec![dim(DimensionKind::Distance), regex("m(etros?)?")],
            production: Box::new(|nodes| {
                let d = distance_data(&nodes[0].token_data)?;
                Some(TokenData::Distance(
                    d.clone().with_unit(DistanceUnit::Metre),
                ))
            }),
        },
        Rule {
            name: "<dist> miles".to_string(),
            pattern: vec![dim(DimensionKind::Distance), regex("milhas?")],
            production: Box::new(|nodes| {
                let d = distance_data(&nodes[0].token_data)?;
                Some(TokenData::Distance(d.clone().with_unit(DistanceUnit::Mile)))
            }),
        },
        Rule {
            name: "<latent dist> km".to_string(),
            pattern: vec![
                dim(DimensionKind::Distance),
                regex("k(il(ó|o))?m?(etro)?s?"),
            ],
            production: Box::new(|nodes| {
                let d = distance_data(&nodes[0].token_data)?;
                Some(TokenData::Distance(
                    d.clone().with_unit(DistanceUnit::Kilometre),
                ))
            }),
        },
    ]
}