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use serde::ser::{Serialize, SerializeStruct, Serializer};
/// Specifies how to break the highlighted fragments. Defaults to
/// [`sentence`](UnifiedBoundaryScanner::Sentence).
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub enum UnifiedBoundaryScanner {
/// Break highlighted fragments at the next sentence boundary, as determined
/// by Java’s [BreakIterator](https://docs.oracle.com/javase/8/docs/api/java/text/BreakIterator.html).
/// You can specify the locale to use with `boundary_scanner_locale`.
///
/// > **Warning**<br/>
/// > The `sentence` scanner splits sentences bigger than `fragment_size` at
/// > the first word
/// boundary next to `fragment_size`. You can set `fragment_size` to 0 to
/// never split any sentence.
Sentence(Option<String>),
/// Break highlighted fragments at the next word boundary, as determined by
/// Java’s [BreakIterator](https://docs.oracle.com/javase/8/docs/api/java/text/BreakIterator.html).
/// You can specify the locale to use with `boundary_scanner_locale`.
Word(Option<String>),
}
/// Specifies how to break the highlighted fragments. Defaults to
/// [`sentence`](FvhBoundaryScanner::Chars).
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub enum FvhBoundaryScanner {
/// Use the characters specified by `boundary_chars` as highlighting
/// boundaries. The `boundary_max_scan` setting controls how far to scan for
/// boundary characters.
Chars,
/// Break highlighted fragments at the next sentence boundary, as determined
/// by Java’s [BreakIterator](https://docs.oracle.com/javase/8/docs/api/java/text/BreakIterator.html).
/// You can specify the locale to use with `boundary_scanner_locale`.
Sentence(Option<String>),
/// Break highlighted fragments at the next word boundary, as determined by
/// Java’s [BreakIterator](https://docs.oracle.com/javase/8/docs/api/java/text/BreakIterator.html).
/// You can specify the locale to use with `boundary_scanner_locale`.
Word(Option<String>),
}
impl Serialize for UnifiedBoundaryScanner {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self {
Self::Sentence(locale) => match locale {
Some(locale) => {
let mut map =
serializer.serialize_struct("UnifiedBoundaryScannerSentence2", 2)?;
map.serialize_field("boundary_scanner", "sentence")?;
map.serialize_field("boundary_scanner_locale", locale)?;
map.end()
}
None => {
let mut map =
serializer.serialize_struct("UnifiedBoundaryScannerSentence1", 1)?;
map.serialize_field("boundary_scanner", "sentence")?;
map.end()
}
},
Self::Word(locale) => match locale {
Some(locale) => {
let mut map = serializer.serialize_struct("UnifiedBoundaryScannerWord2", 2)?;
map.serialize_field("boundary_scanner", "word")?;
map.serialize_field("boundary_scanner_locale", locale)?;
map.end()
}
None => {
let mut map = serializer.serialize_struct("UnifiedBoundaryScannerWord1", 1)?;
map.serialize_field("boundary_scanner", "word")?;
map.end()
}
},
}
}
}
impl Serialize for FvhBoundaryScanner {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self {
Self::Chars => {
let mut map = serializer.serialize_struct("FvhBoundaryScannerChars", 1)?;
map.serialize_field("boundary_scanner", "chars")?;
map.end()
}
Self::Sentence(locale) => match locale {
Some(locale) => {
let mut map = serializer.serialize_struct("FvhBoundaryScannerSentence2", 2)?;
map.serialize_field("boundary_scanner", "sentence")?;
map.serialize_field("boundary_scanner_locale", locale)?;
map.end()
}
None => {
let mut map = serializer.serialize_struct("FvhBoundaryScannerSentence1", 1)?;
map.serialize_field("boundary_scanner", "sentence")?;
map.end()
}
},
Self::Word(locale) => match locale {
Some(locale) => {
let mut map = serializer.serialize_struct("FvhBoundaryScannerWord2", 2)?;
map.serialize_field("boundary_scanner", "word")?;
map.serialize_field("boundary_scanner_locale", locale)?;
map.end()
}
None => {
let mut map = serializer.serialize_struct("FvhBoundaryScannerWord1", 1)?;
map.serialize_field("boundary_scanner", "word")?;
map.end()
}
},
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::util::*;
#[test]
fn serialization() {
assert_serialize(
UnifiedBoundaryScanner::Sentence(None),
json!({ "boundary_scanner": "sentence" }),
);
assert_serialize(
UnifiedBoundaryScanner::Sentence(Some("en-US".into())),
json!({ "boundary_scanner": "sentence", "boundary_scanner_locale": "en-US" }),
);
assert_serialize(
UnifiedBoundaryScanner::Word(None),
json!({ "boundary_scanner": "word" }),
);
assert_serialize(
UnifiedBoundaryScanner::Word(Some("en-US".into())),
json!({ "boundary_scanner": "word", "boundary_scanner_locale": "en-US" }),
);
assert_serialize(
FvhBoundaryScanner::Chars,
json!({ "boundary_scanner": "chars" }),
);
assert_serialize(
FvhBoundaryScanner::Sentence(None),
json!({ "boundary_scanner": "sentence" }),
);
assert_serialize(
FvhBoundaryScanner::Sentence(Some("en-US".into())),
json!({ "boundary_scanner": "sentence", "boundary_scanner_locale": "en-US" }),
);
assert_serialize(
FvhBoundaryScanner::Word(None),
json!({ "boundary_scanner": "word" }),
);
assert_serialize(
FvhBoundaryScanner::Word(Some("en-US".into())),
json!({ "boundary_scanner": "word", "boundary_scanner_locale": "en-US" }),
);
}
}