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Code Issues Releases Activity

Desktop: Fix wildcard search (#3713)

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This commit is contained in:
Naveen M V
2020-09-11 21:52:32 +00:00
committed by GitHub
parent 4b377589aa
commit 5d2baa872e
5 changed files with 74 additions and 22 deletions
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44
ReactNativeClient/lib/services/searchengine/SearchEngine.js
View File

@@ -434,7 +434,6 @@ class SearchEngine {
}
async parseQuery(query, fuzzy = false) {
// fuzzy = false;
const trimQuotes = (str) => str.startsWith('"') ? str.substr(1, str.length - 2) : str;
let allTerms = [];
@@ -453,18 +452,22 @@ class SearchEngine {
const fuzzyScore = [];
let numFuzzyMatches = [];
let terms = null;
if (fuzzy) {
const fuzzyText = await this.fuzzifier(textTerms.filter(x => !x.quoted).map(x => trimQuotes(x.value)));
const fuzzyTitle = await this.fuzzifier(titleTerms.map(x => trimQuotes(x.value)));
const fuzzyBody = await this.fuzzifier(bodyTerms.map(x => trimQuotes(x.value)));
const phraseSearches = textTerms.filter(x => x.quoted).map(x => x.value);
// Save number of matches we got for each word
// fuzzifier() is currently set to return at most 3 matches)
if (fuzzy) {
const fuzzyText = await this.fuzzifier(textTerms.filter(x => !(x.quoted || x.wildcard)).map(x => trimQuotes(x.value)));
const fuzzyTitle = await this.fuzzifier(titleTerms.filter(x => !x.wildcard).map(x => trimQuotes(x.value)));
const fuzzyBody = await this.fuzzifier(bodyTerms.filter(x => !x.wildcard).map(x => trimQuotes(x.value)));
const phraseTextSearch = textTerms.filter(x => x.quoted);
const wildCardSearch = textTerms.concat(titleTerms).concat(bodyTerms).filter(x => x.wildcard);
// Save number of fuzzy matches we got for each word
// fuzzifier() is currently set to return at most 3 matches
// We need to know which fuzzy words go together so that we can filter out notes that don't contain a required word.
numFuzzyMatches = fuzzyText.concat(fuzzyTitle).concat(fuzzyBody).map(x => x.length);
for (let i = 0; i < phraseSearches.length; i++) {
numFuzzyMatches.push(1); // Phrase searches are preserved without fuzzification
for (let i = 0; i < phraseTextSearch.length + wildCardSearch.length; i++) {
// Phrase searches and wildcard searches are preserved without fuzzification (A single match)
numFuzzyMatches.push(1);
}
const mergedFuzzyText = [].concat.apply([], fuzzyText);
@@ -474,18 +477,33 @@ class SearchEngine {
const fuzzyTextTerms = mergedFuzzyText.map(x => { return { name: 'text', value: x.word, negated: false, score: x.score }; });
const fuzzyTitleTerms = mergedFuzzyTitle.map(x => { return { name: 'title', value: x.word, negated: false, score: x.score }; });
const fuzzyBodyTerms = mergedFuzzyBody.map(x => { return { name: 'body', value: x.word, negated: false, score: x.score }; });
const phraseTextTerms = phraseSearches.map(x => { return { name: 'text', value: x, negated: false, score: 0 }; });
// Remove previous text, title and body and replace with fuzzy versions
allTerms = allTerms.filter(x => (x.name !== 'text' && x.name !== 'title' && x.name !== 'body'));
allFuzzyTerms = allTerms.concat(fuzzyTextTerms).concat(fuzzyTitleTerms).concat(fuzzyBodyTerms).concat(phraseTextTerms);
// The order matters here!
// The text goes first, then title, then body, then phrase and finally wildcard
// This is because it needs to match with numFuzzyMathches.
allFuzzyTerms = allTerms.concat(fuzzyTextTerms).concat(fuzzyTitleTerms).concat(fuzzyBodyTerms).concat(phraseTextSearch).concat(wildCardSearch);
const allTextTerms = allFuzzyTerms.filter(x => x.name === 'title' || x.name === 'body' || x.name === 'text');
for (let i = 0; i < allTextTerms.length; i++) {
// Phrase searches and wildcard searches will get a fuzziness score of zero.
// This means that they will go first in the sort order (Even if there are other words with matches in the title)
// Undesirable?
fuzzyScore.push(allFuzzyTerms[i].score ? allFuzzyTerms[i].score : 0);
}
terms = { _: fuzzyTextTerms.concat(phraseTextTerms).map(x =>trimQuotes(x.value)), 'title': fuzzyTitleTerms.map(x =>trimQuotes(x.value)), 'body': fuzzyBodyTerms.map(x =>trimQuotes(x.value)) };
const wildCardTextTerms = wildCardSearch.filter(x => x.name === 'text').map(x =>trimQuotes(x.value));
const wildCardTitleTerms = wildCardSearch.filter(x => x.name === 'title').map(x =>trimQuotes(x.value));
const wildCardBodyTerms = wildCardSearch.filter(x => x.name === 'body').map(x =>trimQuotes(x.value));
const phraseTextTerms = phraseTextSearch.map(x => trimQuotes(x.value));
terms = {
_: fuzzyTextTerms.map(x => trimQuotes(x.value)).concat(phraseTextTerms).concat(wildCardTextTerms),
title: fuzzyTitleTerms.map(x => trimQuotes(x.value)).concat(wildCardTitleTerms),
body: fuzzyBodyTerms.map(x => trimQuotes(x.value)).concat(wildCardBodyTerms),
};
} else {
const nonNegatedTextTerms = textTerms.length + titleTerms.length + bodyTerms.length;
for (let i = 0; i < nonNegatedTextTerms; i++) {

19
ReactNativeClient/lib/services/searchengine/filterParser.ts
View File

@@ -4,6 +4,7 @@ interface Term {
value: string
negated: boolean
quoted?: boolean
wildcard?: boolean
}
const makeTerm = (name: string, value: string): Term => {
@@ -88,7 +89,7 @@ const parseQuery = (query: string): Term[] => {
// eg. Split title:"hello world" to title:hello title:world
const values = trimQuotes(value).split(/[\s-_]+/);
values.forEach(value => {
result.push({ name, value, negated });
result.push({ name, value, negated, wildcard: value.indexOf('*') >= 0 });
});
} else {
result.push({ name, value, negated });
@@ -97,9 +98,21 @@ const parseQuery = (query: string): Term[] => {
// Every word is quoted if not already.
// By quoting the word, FTS match query will take care of removing dashes and other word seperators.
if (value.startsWith('-')) {
result.push({ name: 'text', value: quote(value.slice(1)) , negated: true, quoted: quoted(value) });
result.push({
name: 'text',
value: quote(value.slice(1)),
negated: true,
quoted: quoted(value),
wildcard: value.indexOf('*') >= 0,
});
} else {
result.push({ name: 'text', value: quote(value), negated: false, quoted: quoted(value) });
result.push({
name: 'text',
value: quote(value),
negated: false,
quoted: quoted(value),
wildcard: value.indexOf('*') >= 0,
});
}
}
}