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

use std::collections::HashMap;

use crate::types::*;

#[derive(Clone,Debug)]
pub struct VocabValue {
    pub text: String,

    /// A version of the text normalized to the alphabet
    pub norm: NormString,

    /// The absolute frequency count
    pub frequency: u32,

    /// The number of words
    pub tokencount: u8,

    /// The weight assigned by the lexicon as a whole
    /// (usually 1.0 for validated lexicons and 0.0 for backgrond corpora)
    pub lexweight: f32,

    /// The first lexicon index which matches
    pub lexindex: u8
}

///Map integers (indices correspond to VocabId) to string values (and optionally a frequency count)
pub type VocabDecoder = Vec<VocabValue>;

///Maps strings to integers
pub type VocabEncoder = HashMap<String, VocabId>;

pub struct VocabParams {
    ///Column containing the Text (if any, 0-indexed)
    pub text_column: u8,
    ///Column containing the absolute frequency (if any, 0-indexed)
    pub freq_column: Option<u8>
}

impl Default for VocabParams {
    fn default() -> Self {
        Self {
            text_column: 0,
            freq_column: None,
        }
    }
}