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Improve localized emoji ranking

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Fedor Indutny 2024-05-06 17:01:54 -07:00 committed by GitHub
parent 1280afe619
commit 99022e7e6b
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1 changed files with 18 additions and 3 deletions
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21
ts/components/emoji/lib.ts
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@ -254,8 +254,13 @@ export function createSearch(localeEmoji: SearchEmojiListType): SearchFnType {
} }
} }
let maxShortNameLength = 0;
for (const { shortName } of knownEmoji) {
maxShortNameLength = Math.max(maxShortNameLength, shortName.length);
}
const fuse = new Fuse(knownEmoji, { const fuse = new Fuse(knownEmoji, {
shouldSort: true, shouldSort: false,
threshold: 0.2, threshold: 0.2,
minMatchCharLength: 1, minMatchCharLength: 1,
keys: ['shortName', 'tags'], keys: ['shortName', 'tags'],
@ -263,7 +268,8 @@ export function createSearch(localeEmoji: SearchEmojiListType): SearchFnType {
}); });
const fuseExactPrefix = new Fuse(knownEmoji, { const fuseExactPrefix = new Fuse(knownEmoji, {
shouldSort: true, // We re-rank and sort manually below
shouldSort: false,
threshold: 0, // effectively a prefix search threshold: 0, // effectively a prefix search
minMatchCharLength: 2, minMatchCharLength: 2,
keys: ['shortName', 'tags'], keys: ['shortName', 'tags'],
@ -280,8 +286,17 @@ export function createSearch(localeEmoji: SearchEmojiListType): SearchFnType {
const rankedResults = rawResults.map(entry => { const rankedResults = rawResults.map(entry => {
const rank = entry.item.rank || 1e9; const rank = entry.item.rank || 1e9;
// Rank exact prefix matches in [0,1] range
if (entry.item.shortName.startsWith(query)) {
return { return {
score: (entry.score ?? 0) + rank / knownEmoji.length, score: entry.item.shortName.length / maxShortNameLength,
item: entry.item,
};
}
// Other matches in [1,], ordered by score and rank
return {
score: 1 + (entry.score ?? 0) + rank / knownEmoji.length,
item: entry.item, item: entry.item,
}; };
}); });