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highlight with new tokenizer

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mpostma 2020-12-23 20:04:19 +01:00
parent 1ae761311e
commit 4f7f7538f7
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6 changed files with 49 additions and 30 deletions
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2
Cargo.lock generated
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@ -711,7 +711,7 @@ checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
[[package]]
name = "meilisearch-tokenizer"
version = "0.1.1"
source = "git+https://github.com/meilisearch/Tokenizer.git?branch=token-eq#daeb4a4ac91081f1c592e3ebb3ec5d8dcb4e6976"
source = "git+https://github.com/meilisearch/Tokenizer.git?branch=main#147b6154b1b34cb8f5da2df6a416b7da191bc850"
dependencies = [
"character_converter",
"cow-utils",

4
http-ui/Cargo.lock generated
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@ -803,10 +803,12 @@ dependencies = [
"byte-unit",
"bytes",
"flate2",
"fst",
"futures",
"grenad",
"heed",
"log",
"meilisearch-tokenizer",
"memmap",
"milli",
"once_cell",
@ -1039,7 +1041,7 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
[[package]]
name = "meilisearch-tokenizer"
version = "0.1.1"
source = "git+https://github.com/meilisearch/Tokenizer.git?branch=main#8d91cd52f30aa4b651a085c15056938f7b599646"
source = "git+https://github.com/meilisearch/Tokenizer.git?branch=token-eq#daeb4a4ac91081f1c592e3ebb3ec5d8dcb4e6976"
dependencies = [
"character_converter",
"cow-utils",

1
http-ui/Cargo.toml
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@ -32,3 +32,4 @@ warp = "0.2.2"
# logging
log = "0.4.11"
stderrlog = "0.5.0"
fst = "0.4.5"

54
http-ui/src/main.rs
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@ -27,8 +27,9 @@ use tokio::io::AsyncWriteExt;
use tokio::sync::broadcast;
use warp::filters::ws::Message;
use warp::{Filter, http::Response};
use meilisearch_tokenizer::{Analyzer, AnalyzerConfig};
use fst::Set;
use milli::tokenizer::{simple_tokenizer, TokenType};
use milli::update::UpdateIndexingStep::*;
use milli::update::{UpdateBuilder, IndexDocumentsMethod, UpdateFormat};
use milli::{obkv_to_json, Index, UpdateStore, SearchResult, FacetCondition};
@ -121,49 +122,61 @@ pub struct IndexerOpt {
pub indexing_jobs: Option<usize>,
}
fn highlight_record(
object: &mut Map<String, Value>,
words_to_highlight: &HashSet<String>,
attributes_to_highlight: &HashSet<String>,
) {
// TODO do we need to create a string for element that are not and needs to be highlight?
fn highlight_value(value: Value, words_to_highlight: &HashSet<String>) -> Value {
struct Highlighter<'a, A> {
analyzer: Analyzer<'a, A>,
}
impl<'a, A: AsRef<[u8]>> Highlighter<'a, A> {
fn new(stop_words: &'a fst::Set<A>) -> Self {
let analyzer = Analyzer::new(AnalyzerConfig::default_with_stopwords(stop_words));
Self { analyzer }
}
fn highlight_value(&self, value: Value, words_to_highlight: &HashSet<String>) -> Value {
match value {
Value::Null => Value::Null,
Value::Bool(boolean) => Value::Bool(boolean),
Value::Number(number) => Value::Number(number),
Value::String(old_string) => {
let mut string = String::new();
for (token_type, token) in simple_tokenizer(&old_string) {
if token_type == TokenType::Word {
let lowercase_token = token.to_lowercase();
let to_highlight = words_to_highlight.contains(&lowercase_token);
let analyzed = self.analyzer.analyze(&old_string);
for (word, token) in analyzed.reconstruct() {
if token.is_word() {
let to_highlight = words_to_highlight.contains(token.text());
if to_highlight { string.push_str("<mark>") }
string.push_str(token);
string.push_str(word);
if to_highlight { string.push_str("</mark>") }
} else {
string.push_str(token);
string.push_str(word);
}
}
Value::String(string)
},
Value::Array(values) => {
Value::Array(values.into_iter()
.map(|v| highlight_value(v, words_to_highlight))
.map(|v| self.highlight_value(v, words_to_highlight))
.collect())
},
Value::Object(object) => {
Value::Object(object.into_iter()
.map(|(k, v)| (k, highlight_value(v, words_to_highlight)))
.map(|(k, v)| (k, self.highlight_value(v, words_to_highlight)))
.collect())
},
}
}
fn highlight_record(
&self,
object: &mut Map<String, Value>,
words_to_highlight: &HashSet<String>,
attributes_to_highlight: &HashSet<String>,
) {
// TODO do we need to create a string for element that are not and needs to be highlight?
for (key, value) in object.iter_mut() {
if attributes_to_highlight.contains(key) {
let old_value = mem::take(value);
*value = highlight_value(old_value, words_to_highlight);
*value = self.highlight_value(old_value, words_to_highlight);
}
}
}
}
@ -651,10 +664,13 @@ async fn main() -> anyhow::Result<()> {
None => fields_ids_map.iter().map(|(_, name)| name).map(ToOwned::to_owned).collect(),
};
let stop_words = fst::Set::default();
let highlighter = Highlighter::new(&stop_words);
for (_id, obkv) in index.documents(&rtxn, documents_ids).unwrap() {
let mut object = obkv_to_json(&displayed_fields, &fields_ids_map, obkv).unwrap();
if !disable_highlighting {
highlight_record(&mut object, &found_words, &attributes_to_highlight);
highlighter.highlight_record(&mut object, &found_words, &attributes_to_highlight);
}
documents.push(object);
@ -716,7 +732,7 @@ async fn main() -> anyhow::Result<()> {
}
let file = file.into_std().await;
let mmap = unsafe { memmap::Mmap::map(&file).unwrap() };
let mmap = unsafe { memmap::Mmap::map(&file).expect("can't map file") };
let method = match update_method.as_deref() {
Some("replace") => String::from("replace"),

6
src/update/index_documents/store.rs
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@ -8,21 +8,21 @@ use std::{cmp, iter};
use anyhow::{bail, Context};
use bstr::ByteSlice as _;
use fst::Set;
use grenad::{Reader, FileFuse, Writer, Sorter, CompressionType};
use heed::BytesEncode;
use linked_hash_map::LinkedHashMap;
use log::{debug, info};
use meilisearch_tokenizer::{Analyzer, AnalyzerConfig};
use ordered_float::OrderedFloat;
use roaring::RoaringBitmap;
use serde_json::Value;
use tempfile::tempfile;
use meilisearch_tokenizer::{Analyzer, AnalyzerConfig, TokenKind};
use fst::Set;
use crate::facet::FacetType;
use crate::heed_codec::{BoRoaringBitmapCodec, CboRoaringBitmapCodec};
use crate::heed_codec::facet::{FacetValueStringCodec, FacetLevelValueF64Codec, FacetLevelValueI64Codec};
use crate::heed_codec::facet::{FieldDocIdFacetStringCodec, FieldDocIdFacetF64Codec, FieldDocIdFacetI64Codec};
use crate::heed_codec::{BoRoaringBitmapCodec, CboRoaringBitmapCodec};
use crate::update::UpdateIndexingStep;
use crate::{json_to_string, SmallVec8, SmallVec32, SmallString32, Position, DocumentId, FieldId};