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This commit is contained in:
alex
2026-09-02 23:05:29 -04:00
parent abe3ac97b5
commit 6d75248bde
30 changed files with 1075 additions and 650 deletions
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graph/src/language.rs
+31 -25
View File
@@ -1,16 +1,14 @@
use oxigraph::model::{Literal, TermRef};
use oxilangtag::LanguageTag;
use std::sync::LazyLock;
use spargebra::algebra::{Expression, Function, GraphPattern};
use spargebra::term::Variable;
use std::sync::LazyLock;
pub static ENGLISH_TAG: LazyLock<LanguageTag<String>> = LazyLock::new(|| {
LanguageTag::parse("en".to_string()).unwrap()
});
pub static ENGLISH_TAG: LazyLock<LanguageTag<String>> =
LazyLock::new(|| LanguageTag::parse("en".to_string()).unwrap());
pub static ENGLISH_OR_UNTAGGED: LazyLock<LanguageCondition> = LazyLock::new(|| {
LanguageCondition::ExactMatchOrUntagged(ENGLISH_TAG.clone())
});
pub static ENGLISH_OR_UNTAGGED: LazyLock<LanguageCondition> =
LazyLock::new(|| LanguageCondition::ExactMatchOrUntagged(ENGLISH_TAG.clone()));
#[derive(Clone, Debug)]
pub enum LanguageCondition {
@@ -54,20 +52,23 @@ impl LanguageCondition {
pub fn filter(&self, variable: impl Into<String>) -> String {
let variable = variable.into();
let exact = |language: &LanguageTag<String>| Expression::FunctionCall(
Function::LangMatches, vec![
Expression::FunctionCall(Function::Lang, vec![
Expression::Variable(Variable::new_unchecked(&variable))
]),
Expression::Literal(Literal::new_simple_literal(language.to_string()))
],
);
let untagged = Expression::Not(
Box::new(Expression::FunctionCall(Function::HasLang, vec![
Expression::Variable(Variable::new_unchecked(&variable))
]))
);
let exact = |language: &LanguageTag<String>| {
Expression::FunctionCall(
Function::LangMatches,
vec![
Expression::FunctionCall(
Function::Lang,
vec![Expression::Variable(Variable::new_unchecked(&variable))],
),
Expression::Literal(Literal::new_simple_literal(language.to_string())),
],
)
};
let untagged = Expression::Not(Box::new(Expression::FunctionCall(
Function::HasLang,
vec![Expression::Variable(Variable::new_unchecked(&variable))],
)));
match self {
Self::ExactMatchOnly(language) => Some(exact(language)),
@@ -77,9 +78,14 @@ impl LanguageCondition {
)),
Self::UntaggedOnly => Some(untagged),
Self::AnyOrNone => None,
}.map(|expr| GraphPattern::Filter {
expr,
inner: Box::new(GraphPattern::Bgp { patterns: vec![] }),
}.to_string()).unwrap_or_default()
}
.map(|expr| {
GraphPattern::Filter {
expr,
inner: Box::new(GraphPattern::Bgp { patterns: vec![] }),
}
.to_string()
})
.unwrap_or_default()
}
}