use crate::dimensions::numeral::helpers::numeral_data;
use crate::pattern::{predicate, regex};
use crate::types::{Rule, TokenData};
use super::NumeralData;
fn is_positive(td: &TokenData) -> bool {
matches!(td, TokenData::Numeral(d) if d.value >= 0.0)
}
fn has_grain(td: &TokenData) -> bool {
matches!(td, TokenData::Numeral(d) if d.grain.is_some())
}
fn is_multipliable(td: &TokenData) -> bool {
matches!(td, TokenData::Numeral(d) if d.multipliable)
}
fn number_between(low: f64, up: f64) -> impl Fn(&TokenData) -> bool {
move |td| matches!(td, TokenData::Numeral(d) if d.value >= low && d.value < up)
}
fn unit_val(s: &str) -> Option<f64> {
match s {
"нуль" | "тэг" | "нойл" => Some(0.0),
"нэг" | "ганц" => Some(1.0),
"хоёр" => Some(2.0),
"гурав" => Some(3.0),
"дөрөв" => Some(4.0),
"тав" => Some(5.0),
"зургаа" => Some(6.0),
"долоо" => Some(7.0),
"найм" => Some(8.0),
"ес" => Some(9.0),
_ => None,
}
}
fn ten_to_nineteen(s: &str) -> Option<f64> {
match s {
"арван нэг" => Some(11.0),
"арван хоёр" => Some(12.0),
"арван гурав" => Some(13.0),
"арван дөрөв" => Some(14.0),
"арван тав" => Some(15.0),
"арван зургаа" => Some(16.0),
"арван долоо" => Some(17.0),
"арван найм" => Some(18.0),
"арван ес" => Some(19.0),
_ => None,
}
}
fn tens_val(s: &str) -> Option<f64> {
match s {
"хорь" | "хорин" => Some(20.0),
"гуч" | "гучин" => Some(30.0),
"дөч" | "дөчин" => Some(40.0),
"тавь" | "тавин" => Some(50.0),
"жар" | "жаран" => Some(60.0),
"дал" | "далан" => Some(70.0),
"ная" | "наян" => Some(80.0),
"ер" | "ерэн" => Some(90.0),
_ => None,
}
}
pub fn rules() -> Vec<Rule> {
vec![
Rule {
name: "numbers prefix with -, negative or minus".to_string(),
pattern: vec![regex("-|хасах|сөрөг"), predicate(is_positive)],
production: Box::new(|nodes| {
let v = numeral_data(&nodes[1].token_data)?.value;
Some(TokenData::Numeral(NumeralData::new(-v)))
}),
},
Rule {
name: "few".to_string(),
pattern: vec![regex("хэдхэн")],
production: Box::new(|_| Some(TokenData::Numeral(NumeralData::new(3.0)))),
},
Rule {
name: "ten".to_string(),
pattern: vec![regex("арав")],
production: Box::new(|_| Some(TokenData::Numeral(NumeralData::new(10.0).with_grain(1)))),
},
Rule {
name: "decimal with thousands separator".to_string(),
pattern: vec![regex("(\\d+(\\.\\d\\d\\d)+\\,\\d+)")],
production: Box::new(|nodes| {
let t = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?,
_ => return None,
};
let v: f64 = t.replace('.', "").replace(',', ".").parse().ok()?;
Some(TokenData::Numeral(NumeralData::new(v)))
}),
},
Rule {
name: "integer ([2-9][1-9])".to_string(),
pattern: vec![regex("(хорин|гучин|дөчин|тавин|жаран|далан|наян|ерэн) ?(нэг|хоёр|гурав|дөрөв|тав|зургаа|долоо|найм|ес)")],
production: Box::new(|nodes| {
let m = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m,
_ => return None,
};
let t = tens_val(m.group(1)?)?;
let u = unit_val(m.group(2)?)?;
Some(TokenData::Numeral(NumeralData::new(t + u)))
}),
},
Rule {
name: "numbers und".to_string(),
pattern: vec![
predicate(|td| matches!(td, TokenData::Numeral(n) if [20.0,30.0,40.0,50.0,60.0,70.0,80.0,90.0].contains(&n.value))),
predicate(number_between(1.0, 10.0)),
],
production: Box::new(|nodes| {
let a = numeral_data(&nodes[0].token_data)?.value;
let b = numeral_data(&nodes[1].token_data)?.value;
Some(TokenData::Numeral(NumeralData::new(a + b)))
}),
},
Rule {
name: "compose by multiplication".to_string(),
pattern: vec![predicate(|td| matches!(td, TokenData::Numeral(_))), predicate(is_multipliable)],
production: Box::new(|nodes| {
let a = numeral_data(&nodes[0].token_data)?;
let b = numeral_data(&nodes[1].token_data)?;
if b.grain.is_none() || (b.grain.is_some() && b.value > a.value) {
let mut out = NumeralData::new(a.value * b.value);
if let Some(g) = b.grain {
out = out.with_grain(g);
}
Some(TokenData::Numeral(out))
} else {
None
}
}),
},
Rule {
name: "intersect".to_string(),
pattern: vec![predicate(has_grain), predicate(|td| !is_multipliable(td) && is_positive(td))],
production: Box::new(|nodes| {
let a = numeral_data(&nodes[0].token_data)?;
let b = numeral_data(&nodes[1].token_data)?;
let g = a.grain?;
if 10f64.powi(g as i32) > b.value {
Some(TokenData::Numeral(NumeralData::new(a.value + b.value)))
} else {
None
}
}),
},
Rule {
name: "numbers suffixes (K, M, G)".to_string(),
pattern: vec![predicate(|td| matches!(td, TokenData::Numeral(_))), regex("([kmg])")],
production: Box::new(|nodes| {
let v = numeral_data(&nodes[0].token_data)?.value;
let s = match &nodes[1].token_data {
TokenData::RegexMatch(m) => m.group(1)?.to_lowercase(),
_ => return None,
};
let out = match s.as_str() {
"k" => v * 1e3,
"m" => v * 1e6,
"g" => v * 1e9,
_ => return None,
};
Some(TokenData::Numeral(NumeralData::new(out)))
}),
},
Rule {
name: "couple".to_string(),
pattern: vec![regex("хос")],
production: Box::new(|_| Some(TokenData::Numeral(NumeralData::new(2.0)))),
},
Rule {
name: "powers of tens".to_string(),
pattern: vec![regex("(зуу?|мянга?|сая?)")],
production: Box::new(|nodes| {
let s = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?.to_lowercase(),
_ => return None,
};
let out = match s.as_str() {
"зуу" | "зуун" => NumeralData::new(1e2).with_grain(2).with_multipliable(true),
"мянга" | "мянган" => NumeralData::new(1e3).with_grain(3).with_multipliable(true),
"сая" | "саяын" => NumeralData::new(1e6).with_grain(6).with_multipliable(true),
_ => return None,
};
Some(TokenData::Numeral(out))
}),
},
Rule {
name: "integer (0..19)".to_string(),
pattern: vec![regex("(нуль|тэг|нойл|нэг|ганц|хоёр|гурав|дөрөв|тав|зургаа|долоо|найм|ес|арван нэг|арван хоёр|арван гурав|арван дөрөв|арван тав|арван зургаа|арван долоо|арван найм|арван ес|арав|арван)")],
production: Box::new(|nodes| {
let s = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?,
_ => return None,
};
let sl = s.to_lowercase();
let v = if let Some(v) = unit_val(&sl) {
v
} else if sl == "арав" || sl == "арван" {
10.0
} else {
ten_to_nineteen(&sl)?
};
Some(TokenData::Numeral(NumeralData::new(v)))
}),
},
Rule {
name: "integer (20..90)".to_string(),
pattern: vec![regex("(хорь|гуч|дөч|тавь|жар|дал|ная|ер)")],
production: Box::new(|nodes| {
let s = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?,
_ => return None,
};
Some(TokenData::Numeral(NumeralData::new(tens_val(&s.to_lowercase())?)))
}),
},
Rule {
name: "number dot number".to_string(),
pattern: vec![
predicate(|td| matches!(td, TokenData::Numeral(_))),
regex("цэг"),
predicate(|td| matches!(td, TokenData::Numeral(n) if n.grain.is_none())),
],
production: Box::new(|nodes| {
let v1 = numeral_data(&nodes[0].token_data)?.value;
let v2 = numeral_data(&nodes[2].token_data)?.value;
let mut m = 1.0;
while v2 >= m {
m *= 10.0;
}
Some(TokenData::Numeral(NumeralData::new(v1 + (v2 / m))))
}),
},
Rule {
name: "decimal number".to_string(),
pattern: vec![regex("(\\d*\\.\\d+)")],
production: Box::new(|nodes| {
let t = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?,
_ => return None,
};
Some(TokenData::Numeral(NumeralData::new(t.parse().ok()?)))
}),
},
Rule {
name: "integer with thousands separator .".to_string(),
pattern: vec![regex("(\\d{1,3}(\\.\\d\\d\\d){1,5})")],
production: Box::new(|nodes| {
let t = match &nodes[0].token_data {
TokenData::RegexMatch(m) => m.group(1)?,
_ => return None,
};
Some(TokenData::Numeral(NumeralData::new(t.replace('.', "").parse().ok()?)))
}),
},
]
}