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@ -1,15 +1,18 @@ |
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//! A [TriG](https://www.w3.org/TR/trig/) streaming parser implemented by [`TriGParser`]
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//! A [TriG](https://www.w3.org/TR/trig/) streaming parser implemented by [`TriGParser`]
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//! and a serializer implemented by [`TriGSerializer`].
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//! and a serializer implemented by [`TriGSerializer`].
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use crate::lexer::N3Lexer; |
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use crate::terse::TriGRecognizer; |
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use crate::terse::TriGRecognizer; |
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#[cfg(feature = "async-tokio")] |
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#[cfg(feature = "async-tokio")] |
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use crate::toolkit::FromTokioAsyncReadIterator; |
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use crate::toolkit::FromTokioAsyncReadIterator; |
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use crate::toolkit::{FromReadIterator, ParseError, Parser, SyntaxError}; |
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use crate::toolkit::{FromReadIterator, ParseError, Parser, SyntaxError}; |
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use oxiri::{Iri, IriParseError}; |
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use oxiri::{Iri, IriParseError}; |
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use oxrdf::vocab::xsd; |
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use oxrdf::vocab::{rdf, xsd}; |
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use oxrdf::{GraphName, NamedNode, Quad, QuadRef, Subject, TermRef}; |
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use oxrdf::{ |
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GraphName, GraphNameRef, LiteralRef, NamedNode, NamedNodeRef, Quad, QuadRef, Subject, TermRef, |
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}; |
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use std::collections::hash_map::Iter; |
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use std::collections::hash_map::Iter; |
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use std::collections::HashMap; |
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use std::collections::{BTreeMap, HashMap}; |
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use std::fmt; |
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use std::fmt; |
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use std::io::{self, Read, Write}; |
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use std::io::{self, Read, Write}; |
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#[cfg(feature = "async-tokio")] |
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#[cfg(feature = "async-tokio")] |
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@ -582,7 +585,9 @@ impl<'a> Iterator for TriGPrefixesIter<'a> { |
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// let mut writer = TriGSerializer::new().serialize_to_write(Vec::new());
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/// let mut writer = TriGSerializer::new()
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize_to_write(Vec::new());
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/// writer.write_quad(QuadRef::new(
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/// writer.write_quad(QuadRef::new(
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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@ -590,20 +595,37 @@ impl<'a> Iterator for TriGPrefixesIter<'a> { |
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/// NamedNodeRef::new("http://example.com")?,
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/// NamedNodeRef::new("http://example.com")?,
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/// ))?;
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/// ))?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
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/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
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/// writer.finish()?.as_slice()
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/// writer.finish()?.as_slice()
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/// );
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/// );
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// ```
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/// ```
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#[derive(Default)] |
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#[derive(Default)] |
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#[must_use] |
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#[must_use] |
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pub struct TriGSerializer; |
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pub struct TriGSerializer { |
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prefixes: BTreeMap<String, String>, |
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} |
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impl TriGSerializer { |
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impl TriGSerializer { |
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/// Builds a new [`TriGSerializer`].
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/// Builds a new [`TriGSerializer`].
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#[inline] |
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#[inline] |
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pub fn new() -> Self { |
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pub fn new() -> Self { |
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Self |
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Self { |
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prefixes: BTreeMap::new(), |
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} |
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} |
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#[inline] |
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pub fn with_prefix( |
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mut self, |
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prefix_name: impl Into<String>, |
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prefix_iri: impl Into<String>, |
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) -> Result<Self, IriParseError> { |
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self.prefixes.insert( |
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Iri::parse(prefix_iri.into())?.into_inner(), |
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prefix_name.into(), |
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); |
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Ok(self) |
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} |
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} |
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/// Writes a TriG file to a [`Write`] implementation.
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/// Writes a TriG file to a [`Write`] implementation.
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@ -612,7 +634,9 @@ impl TriGSerializer { |
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// let mut writer = TriGSerializer::new().serialize_to_write(Vec::new());
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/// let mut writer = TriGSerializer::new()
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize_to_write(Vec::new());
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/// writer.write_quad(QuadRef::new(
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/// writer.write_quad(QuadRef::new(
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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@ -620,7 +644,7 @@ impl TriGSerializer { |
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/// NamedNodeRef::new("http://example.com")?,
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/// NamedNodeRef::new("http://example.com")?,
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/// ))?;
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/// ))?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
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/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
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/// writer.finish()?.as_slice()
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/// writer.finish()?.as_slice()
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/// );
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/// );
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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@ -639,16 +663,20 @@ impl TriGSerializer { |
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// # #[tokio::main(flavor = "current_thread")]
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/// # #[tokio::main(flavor = "current_thread")]
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/// # async fn main() -> std::io::Result<()> {
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/// # async fn main() -> Result<(), Box<dyn std::error::Error>> {
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/// let mut writer = TriGSerializer::new().serialize_to_tokio_async_write(Vec::new());
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/// let mut writer = TriGSerializer::new()
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/// writer.write_quad(QuadRef::new(
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize_to_tokio_async_write(Vec::new());
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/// writer
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/// .write_quad(QuadRef::new(
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/// NamedNodeRef::new_unchecked("http://example.com#me"),
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/// NamedNodeRef::new_unchecked("http://example.com#me"),
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/// NamedNodeRef::new_unchecked("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
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/// NamedNodeRef::new_unchecked("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
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/// NamedNodeRef::new_unchecked("http://schema.org/Person"),
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/// NamedNodeRef::new_unchecked("http://schema.org/Person"),
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/// NamedNodeRef::new_unchecked("http://example.com"),
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/// NamedNodeRef::new_unchecked("http://example.com"),
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/// )).await?;
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/// ))
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/// .await?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
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/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
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/// writer.finish().await?.as_slice()
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/// writer.finish().await?.as_slice()
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/// );
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/// );
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/// # Ok(())
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/// # Ok(())
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@ -673,23 +701,29 @@ impl TriGSerializer { |
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// let mut buf = Vec::new();
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/// let mut buf = Vec::new();
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/// let mut writer = TriGSerializer::new().serialize();
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/// let mut writer = TriGSerializer::new()
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/// writer.write_quad(QuadRef::new(
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize();
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/// writer.write_quad(
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/// QuadRef::new(
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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/// NamedNodeRef::new("http://schema.org/Person")?,
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/// NamedNodeRef::new("http://schema.org/Person")?,
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/// NamedNodeRef::new("http://example.com")?,
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/// NamedNodeRef::new("http://example.com")?,
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/// ), &mut buf)?;
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/// ),
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/// &mut buf,
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/// )?;
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/// writer.finish(&mut buf)?;
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/// writer.finish(&mut buf)?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
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/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
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/// buf.as_slice()
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/// buf.as_slice()
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/// );
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/// );
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// ```
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/// ```
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#[allow(clippy::unused_self)] |
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pub fn serialize(self) -> LowLevelTriGWriter { |
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pub fn serialize(&self) -> LowLevelTriGWriter { |
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LowLevelTriGWriter { |
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LowLevelTriGWriter { |
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prefixes: self.prefixes, |
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prelude_written: false, |
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current_graph_name: GraphName::DefaultGraph, |
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current_graph_name: GraphName::DefaultGraph, |
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current_subject_predicate: None, |
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current_subject_predicate: None, |
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} |
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} |
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@ -702,7 +736,9 @@ impl TriGSerializer { |
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxrdf::{NamedNodeRef, QuadRef};
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// let mut writer = TriGSerializer::new().serialize_to_write(Vec::new());
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/// let mut writer = TriGSerializer::new()
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize_to_write(Vec::new());
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/// writer.write_quad(QuadRef::new(
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/// writer.write_quad(QuadRef::new(
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://example.com#me")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
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@ -710,7 +746,7 @@ impl TriGSerializer { |
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/// NamedNodeRef::new("http://example.com")?,
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/// NamedNodeRef::new("http://example.com")?,
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/// ))?;
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/// ))?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
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/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
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/// writer.finish()?.as_slice()
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/// writer.finish()?.as_slice()
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/// );
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/// );
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
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@ -741,16 +777,20 @@ impl<W: Write> ToWriteTriGWriter<W> { |
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/// use oxttl::TriGSerializer;
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/// use oxttl::TriGSerializer;
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///
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///
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/// # #[tokio::main(flavor = "current_thread")]
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/// # #[tokio::main(flavor = "current_thread")]
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/// # async fn main() -> std::io::Result<()> {
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/// # async fn main() -> Result<(), Box<dyn std::error::Error>> {
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/// let mut writer = TriGSerializer::new().serialize_to_tokio_async_write(Vec::new());
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/// let mut writer = TriGSerializer::new()
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/// writer.write_quad(QuadRef::new(
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/// .with_prefix("schema", "http://schema.org/")?
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/// .serialize_to_tokio_async_write(Vec::new());
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/// writer
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/// .write_quad(QuadRef::new(
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/// NamedNodeRef::new_unchecked("http://example.com#me"),
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/// NamedNodeRef::new_unchecked("http://example.com#me"),
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/// NamedNodeRef::new_unchecked("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
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/// NamedNodeRef::new_unchecked("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
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/// NamedNodeRef::new_unchecked("http://schema.org/Person"),
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/// NamedNodeRef::new_unchecked("http://schema.org/Person"),
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/// NamedNodeRef::new_unchecked("http://example.com"),
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/// NamedNodeRef::new_unchecked("http://example.com"),
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/// )).await?;
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/// ))
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/// .await?;
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/// assert_eq!(
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/// assert_eq!(
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/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
|
|
|
|
/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
|
|
|
|
/// writer.finish().await?.as_slice()
|
|
|
|
/// writer.finish().await?.as_slice()
|
|
|
|
/// );
|
|
|
|
/// );
|
|
|
|
/// # Ok(())
|
|
|
|
/// # Ok(())
|
|
|
|
@ -790,21 +830,28 @@ impl<W: AsyncWrite + Unpin> ToTokioAsyncWriteTriGWriter<W> { |
|
|
|
/// use oxttl::TriGSerializer;
|
|
|
|
/// use oxttl::TriGSerializer;
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// let mut buf = Vec::new();
|
|
|
|
/// let mut buf = Vec::new();
|
|
|
|
/// let mut writer = TriGSerializer::new().serialize();
|
|
|
|
/// let mut writer = TriGSerializer::new()
|
|
|
|
/// writer.write_quad(QuadRef::new(
|
|
|
|
/// .with_prefix("schema", "http://schema.org/")?
|
|
|
|
|
|
|
|
/// .serialize();
|
|
|
|
|
|
|
|
/// writer.write_quad(
|
|
|
|
|
|
|
|
/// QuadRef::new(
|
|
|
|
/// NamedNodeRef::new("http://example.com#me")?,
|
|
|
|
/// NamedNodeRef::new("http://example.com#me")?,
|
|
|
|
/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
|
|
|
|
/// NamedNodeRef::new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")?,
|
|
|
|
/// NamedNodeRef::new("http://schema.org/Person")?,
|
|
|
|
/// NamedNodeRef::new("http://schema.org/Person")?,
|
|
|
|
/// NamedNodeRef::new("http://example.com")?,
|
|
|
|
/// NamedNodeRef::new("http://example.com")?,
|
|
|
|
/// ), &mut buf)?;
|
|
|
|
/// ),
|
|
|
|
|
|
|
|
/// &mut buf,
|
|
|
|
|
|
|
|
/// )?;
|
|
|
|
/// writer.finish(&mut buf)?;
|
|
|
|
/// writer.finish(&mut buf)?;
|
|
|
|
/// assert_eq!(
|
|
|
|
/// assert_eq!(
|
|
|
|
/// b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
|
|
|
|
/// b"@prefix schema: <http://schema.org/> .\n<http://example.com> {\n\t<http://example.com#me> a schema:Person .\n}\n",
|
|
|
|
/// buf.as_slice()
|
|
|
|
/// buf.as_slice()
|
|
|
|
/// );
|
|
|
|
/// );
|
|
|
|
/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
|
|
|
|
/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
|
|
|
|
/// ```
|
|
|
|
/// ```
|
|
|
|
pub struct LowLevelTriGWriter { |
|
|
|
pub struct LowLevelTriGWriter { |
|
|
|
|
|
|
|
prefixes: BTreeMap<String, String>, |
|
|
|
|
|
|
|
prelude_written: bool, |
|
|
|
current_graph_name: GraphName, |
|
|
|
current_graph_name: GraphName, |
|
|
|
current_subject_predicate: Option<(Subject, NamedNode)>, |
|
|
|
current_subject_predicate: Option<(Subject, NamedNode)>, |
|
|
|
} |
|
|
|
} |
|
|
|
@ -816,6 +863,12 @@ impl LowLevelTriGWriter { |
|
|
|
q: impl Into<QuadRef<'a>>, |
|
|
|
q: impl Into<QuadRef<'a>>, |
|
|
|
mut write: impl Write, |
|
|
|
mut write: impl Write, |
|
|
|
) -> io::Result<()> { |
|
|
|
) -> io::Result<()> { |
|
|
|
|
|
|
|
if !self.prelude_written { |
|
|
|
|
|
|
|
self.prelude_written = true; |
|
|
|
|
|
|
|
for (prefix_iri, prefix_name) in &self.prefixes { |
|
|
|
|
|
|
|
writeln!(write, "@prefix {prefix_name}: <{prefix_iri}> .")?; |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
let q = q.into(); |
|
|
|
let q = q.into(); |
|
|
|
if q.graph_name == self.current_graph_name.as_ref() { |
|
|
|
if q.graph_name == self.current_graph_name.as_ref() { |
|
|
|
if let Some((current_subject, current_predicate)) = |
|
|
|
if let Some((current_subject, current_predicate)) = |
|
|
|
@ -824,7 +877,7 @@ impl LowLevelTriGWriter { |
|
|
|
if q.subject == current_subject.as_ref() { |
|
|
|
if q.subject == current_subject.as_ref() { |
|
|
|
if q.predicate == current_predicate { |
|
|
|
if q.predicate == current_predicate { |
|
|
|
self.current_subject_predicate = Some((current_subject, current_predicate)); |
|
|
|
self.current_subject_predicate = Some((current_subject, current_predicate)); |
|
|
|
write!(write, " , {}", TurtleTerm(q.object)) |
|
|
|
write!(write, " , {}", self.term(q.object)) |
|
|
|
} else { |
|
|
|
} else { |
|
|
|
self.current_subject_predicate = |
|
|
|
self.current_subject_predicate = |
|
|
|
Some((current_subject, q.predicate.into_owned())); |
|
|
|
Some((current_subject, q.predicate.into_owned())); |
|
|
|
@ -832,7 +885,12 @@ impl LowLevelTriGWriter { |
|
|
|
if !self.current_graph_name.is_default_graph() { |
|
|
|
if !self.current_graph_name.is_default_graph() { |
|
|
|
write!(write, "\t")?; |
|
|
|
write!(write, "\t")?; |
|
|
|
} |
|
|
|
} |
|
|
|
write!(write, "\t{} {}", q.predicate, TurtleTerm(q.object)) |
|
|
|
write!( |
|
|
|
|
|
|
|
write, |
|
|
|
|
|
|
|
"\t{} {}", |
|
|
|
|
|
|
|
self.predicate(q.predicate), |
|
|
|
|
|
|
|
self.term(q.object) |
|
|
|
|
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} else { |
|
|
|
} else { |
|
|
|
self.current_subject_predicate = |
|
|
|
self.current_subject_predicate = |
|
|
|
@ -844,9 +902,9 @@ impl LowLevelTriGWriter { |
|
|
|
write!( |
|
|
|
write!( |
|
|
|
write, |
|
|
|
write, |
|
|
|
"{} {} {}", |
|
|
|
"{} {} {}", |
|
|
|
TurtleTerm(q.subject.into()), |
|
|
|
self.term(q.subject), |
|
|
|
q.predicate, |
|
|
|
self.predicate(q.predicate), |
|
|
|
TurtleTerm(q.object) |
|
|
|
self.term(q.object) |
|
|
|
) |
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} else { |
|
|
|
} else { |
|
|
|
@ -858,9 +916,9 @@ impl LowLevelTriGWriter { |
|
|
|
write!( |
|
|
|
write!( |
|
|
|
write, |
|
|
|
write, |
|
|
|
"{} {} {}", |
|
|
|
"{} {} {}", |
|
|
|
TurtleTerm(q.subject.into()), |
|
|
|
self.term(q.subject), |
|
|
|
q.predicate, |
|
|
|
self.predicate(q.predicate), |
|
|
|
TurtleTerm(q.object) |
|
|
|
self.term(q.object) |
|
|
|
) |
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} else { |
|
|
|
} else { |
|
|
|
@ -873,20 +931,42 @@ impl LowLevelTriGWriter { |
|
|
|
self.current_graph_name = q.graph_name.into_owned(); |
|
|
|
self.current_graph_name = q.graph_name.into_owned(); |
|
|
|
self.current_subject_predicate = |
|
|
|
self.current_subject_predicate = |
|
|
|
Some((q.subject.into_owned(), q.predicate.into_owned())); |
|
|
|
Some((q.subject.into_owned(), q.predicate.into_owned())); |
|
|
|
if !self.current_graph_name.is_default_graph() { |
|
|
|
match self.current_graph_name.as_ref() { |
|
|
|
writeln!(write, "{} {{", q.graph_name)?; |
|
|
|
GraphNameRef::NamedNode(g) => { |
|
|
|
|
|
|
|
writeln!(write, "{} {{", self.term(g))?; |
|
|
|
write!(write, "\t")?; |
|
|
|
write!(write, "\t")?; |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
GraphNameRef::BlankNode(g) => { |
|
|
|
|
|
|
|
writeln!(write, "{} {{", self.term(g))?; |
|
|
|
|
|
|
|
write!(write, "\t")?; |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
GraphNameRef::DefaultGraph => (), |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
write!( |
|
|
|
write!( |
|
|
|
write, |
|
|
|
write, |
|
|
|
"{} {} {}", |
|
|
|
"{} {} {}", |
|
|
|
TurtleTerm(q.subject.into()), |
|
|
|
self.term(q.subject), |
|
|
|
q.predicate, |
|
|
|
self.predicate(q.predicate), |
|
|
|
TurtleTerm(q.object) |
|
|
|
self.term(q.object) |
|
|
|
) |
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fn predicate<'a>(&'a self, named_node: impl Into<NamedNodeRef<'a>>) -> TurtlePredicate<'a> { |
|
|
|
|
|
|
|
TurtlePredicate { |
|
|
|
|
|
|
|
named_node: named_node.into(), |
|
|
|
|
|
|
|
prefixes: &self.prefixes, |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fn term<'a>(&'a self, term: impl Into<TermRef<'a>>) -> TurtleTerm<'a> { |
|
|
|
|
|
|
|
TurtleTerm { |
|
|
|
|
|
|
|
term: term.into(), |
|
|
|
|
|
|
|
prefixes: &self.prefixes, |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/// Finishes to write the file.
|
|
|
|
/// Finishes to write the file.
|
|
|
|
pub fn finish(&mut self, mut write: impl Write) -> io::Result<()> { |
|
|
|
pub fn finish(&mut self, mut write: impl Write) -> io::Result<()> { |
|
|
|
if self.current_subject_predicate.is_some() { |
|
|
|
if self.current_subject_predicate.is_some() { |
|
|
|
@ -899,12 +979,43 @@ impl LowLevelTriGWriter { |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
struct TurtleTerm<'a>(TermRef<'a>); |
|
|
|
struct TurtlePredicate<'a> { |
|
|
|
|
|
|
|
named_node: NamedNodeRef<'a>, |
|
|
|
|
|
|
|
prefixes: &'a BTreeMap<String, String>, |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
impl<'a> fmt::Display for TurtlePredicate<'a> { |
|
|
|
|
|
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
|
|
|
|
|
|
|
if self.named_node == rdf::TYPE { |
|
|
|
|
|
|
|
write!(f, "a") |
|
|
|
|
|
|
|
} else { |
|
|
|
|
|
|
|
TurtleTerm { |
|
|
|
|
|
|
|
term: self.named_node.into(), |
|
|
|
|
|
|
|
prefixes: self.prefixes, |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
.fmt(f) |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
struct TurtleTerm<'a> { |
|
|
|
|
|
|
|
term: TermRef<'a>, |
|
|
|
|
|
|
|
prefixes: &'a BTreeMap<String, String>, |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
impl<'a> fmt::Display for TurtleTerm<'a> { |
|
|
|
impl<'a> fmt::Display for TurtleTerm<'a> { |
|
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
|
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
|
|
|
match self.0 { |
|
|
|
match self.term { |
|
|
|
TermRef::NamedNode(v) => write!(f, "{v}"), |
|
|
|
TermRef::NamedNode(v) => { |
|
|
|
|
|
|
|
for (prefix_iri, prefix_name) in self.prefixes { |
|
|
|
|
|
|
|
if let Some(local_name) = v.as_str().strip_prefix(prefix_iri) { |
|
|
|
|
|
|
|
if let Some(escaped_local_name) = escape_local_name(local_name) { |
|
|
|
|
|
|
|
return write!(f, "{prefix_name}:{escaped_local_name}"); |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
write!(f, "{v}") |
|
|
|
|
|
|
|
} |
|
|
|
TermRef::BlankNode(v) => write!(f, "{v}"), |
|
|
|
TermRef::BlankNode(v) => write!(f, "{v}"), |
|
|
|
TermRef::Literal(v) => { |
|
|
|
TermRef::Literal(v) => { |
|
|
|
let value = v.value(); |
|
|
|
let value = v.value(); |
|
|
|
@ -917,8 +1028,18 @@ impl<'a> fmt::Display for TurtleTerm<'a> { |
|
|
|
}; |
|
|
|
}; |
|
|
|
if inline { |
|
|
|
if inline { |
|
|
|
write!(f, "{value}") |
|
|
|
write!(f, "{value}") |
|
|
|
} else { |
|
|
|
} else if v.is_plain() { |
|
|
|
write!(f, "{v}") |
|
|
|
write!(f, "{v}") |
|
|
|
|
|
|
|
} else { |
|
|
|
|
|
|
|
write!( |
|
|
|
|
|
|
|
f, |
|
|
|
|
|
|
|
"{}^^{}", |
|
|
|
|
|
|
|
LiteralRef::new_simple_literal(v.value()), |
|
|
|
|
|
|
|
TurtleTerm { |
|
|
|
|
|
|
|
term: v.datatype().into(), |
|
|
|
|
|
|
|
prefixes: self.prefixes |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
#[cfg(feature = "rdf-star")] |
|
|
|
#[cfg(feature = "rdf-star")] |
|
|
|
@ -926,9 +1047,18 @@ impl<'a> fmt::Display for TurtleTerm<'a> { |
|
|
|
write!( |
|
|
|
write!( |
|
|
|
f, |
|
|
|
f, |
|
|
|
"<< {} {} {} >>", |
|
|
|
"<< {} {} {} >>", |
|
|
|
TurtleTerm(t.subject.as_ref().into()), |
|
|
|
TurtleTerm { |
|
|
|
t.predicate, |
|
|
|
term: t.subject.as_ref().into(), |
|
|
|
TurtleTerm(t.object.as_ref()) |
|
|
|
prefixes: self.prefixes |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
TurtleTerm { |
|
|
|
|
|
|
|
term: t.predicate.as_ref().into(), |
|
|
|
|
|
|
|
prefixes: self.prefixes |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
TurtleTerm { |
|
|
|
|
|
|
|
term: t.object.as_ref(), |
|
|
|
|
|
|
|
prefixes: self.prefixes |
|
|
|
|
|
|
|
} |
|
|
|
) |
|
|
|
) |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
@ -1004,6 +1134,61 @@ fn is_turtle_double(value: &str) -> bool { |
|
|
|
(with_before || with_after) && !value.is_empty() && value.iter().all(u8::is_ascii_digit) |
|
|
|
(with_before || with_after) && !value.is_empty() && value.iter().all(u8::is_ascii_digit) |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
fn escape_local_name(value: &str) -> Option<String> { |
|
|
|
|
|
|
|
// TODO: PLX
|
|
|
|
|
|
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// [168s] PN_LOCAL ::= (PN_CHARS_U | ':' | [0-9] | PLX) ((PN_CHARS | '.' | ':' | PLX)* (PN_CHARS | ':' | PLX))?
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let mut output = String::with_capacity(value.len()); |
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let mut chars = value.chars(); |
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let first = chars.next()?; |
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if N3Lexer::is_possible_pn_chars_u(first) || first == ':' || first.is_ascii_digit() { |
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output.push(first); |
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} else if can_be_escaped_in_local_name(first) { |
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output.push('\\'); |
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output.push(first); |
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} else { |
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return None; |
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} |
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while let Some(c) = chars.next() { |
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if N3Lexer::is_possible_pn_chars(c) || c == ':' || (c == '.' && !chars.as_str().is_empty()) |
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{ |
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output.push(c); |
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} else if can_be_escaped_in_local_name(c) { |
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output.push('\\'); |
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output.push(c); |
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} else { |
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return None; |
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} |
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} |
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Some(output) |
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} |
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fn can_be_escaped_in_local_name(c: char) -> bool { |
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matches!( |
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c, |
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'_' | '~' |
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| '.' |
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| '-' |
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| '!' |
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| '$' |
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| '&' |
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| '\'' |
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| '(' |
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| ')' |
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| '*' |
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| '+' |
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| ',' |
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| ';' |
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| '=' |
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| '/' |
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| '?' |
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| '#' |
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| '@' |
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| '%' |
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) |
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} |
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#[cfg(test)] |
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#[cfg(test)] |
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mod tests { |
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mod tests { |
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#![allow(clippy::panic_in_result_fn)] |
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#![allow(clippy::panic_in_result_fn)] |
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@ -1014,11 +1199,20 @@ mod tests { |
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#[test] |
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#[test] |
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fn test_write() -> io::Result<()> { |
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fn test_write() -> io::Result<()> { |
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let mut writer = TriGSerializer::new().serialize_to_write(Vec::new()); |
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let mut writer = TriGSerializer::new() |
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.with_prefix("ex", "http://example.com/") |
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.unwrap() |
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.serialize_to_write(Vec::new()); |
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writer.write_quad(QuadRef::new( |
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writer.write_quad(QuadRef::new( |
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NamedNodeRef::new_unchecked("http://example.com/s"), |
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NamedNodeRef::new_unchecked("http://example.com/s"), |
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NamedNodeRef::new_unchecked("http://example.com/p"), |
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NamedNodeRef::new_unchecked("http://example.com/p"), |
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NamedNodeRef::new_unchecked("http://example.com/o"), |
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NamedNodeRef::new_unchecked("http://example.com/o."), |
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NamedNodeRef::new_unchecked("http://example.com/g"), |
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))?; |
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writer.write_quad(QuadRef::new( |
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NamedNodeRef::new_unchecked("http://example.com/s"), |
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NamedNodeRef::new_unchecked("http://example.com/p"), |
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NamedNodeRef::new_unchecked("http://example.com/o{o}"), |
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NamedNodeRef::new_unchecked("http://example.com/g"), |
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NamedNodeRef::new_unchecked("http://example.com/g"), |
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))?; |
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))?; |
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writer.write_quad(QuadRef::new( |
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writer.write_quad(QuadRef::new( |
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@ -1047,11 +1241,14 @@ mod tests { |
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))?; |
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))?; |
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writer.write_quad(QuadRef::new( |
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writer.write_quad(QuadRef::new( |
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BlankNodeRef::new_unchecked("b"), |
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BlankNodeRef::new_unchecked("b"), |
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NamedNodeRef::new_unchecked("http://example.com/p2"), |
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NamedNodeRef::new_unchecked("http://example.org/p2"), |
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LiteralRef::new_typed_literal("false", xsd::BOOLEAN), |
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LiteralRef::new_typed_literal("false", xsd::BOOLEAN), |
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NamedNodeRef::new_unchecked("http://example.com/g2"), |
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NamedNodeRef::new_unchecked("http://example.com/g2"), |
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))?; |
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))?; |
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assert_eq!(String::from_utf8(writer.finish()?).unwrap(), "<http://example.com/g> {\n\t<http://example.com/s> <http://example.com/p> <http://example.com/o> , \"foo\" ;\n\t\t<http://example.com/p2> \"foo\"@en .\n\t_:b <http://example.com/p2> _:b2 .\n}\n_:b <http://example.com/p2> true .\n<http://example.com/g2> {\n\t_:b <http://example.com/p2> false .\n}\n"); |
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assert_eq!( |
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String::from_utf8(writer.finish()?).unwrap(), |
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"@prefix ex: <http://example.com/> .\nex:g {\n\tex:s ex:p ex:o\\. , <http://example.com/o{o}> , \"foo\" ;\n\t\tex:p2 \"foo\"@en .\n\t_:b ex:p2 _:b2 .\n}\n_:b ex:p2 true .\nex:g2 {\n\t_:b <http://example.org/p2> false .\n}\n" |
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); |
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Ok(()) |
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|
Ok(()) |
|
|
|
} |
|
|
|
} |
|
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|
} |
|
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|
} |
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Tpt
8 months ago
committed by