code.gitea.io/gitea@v1.21.7/web_src/js/utils/match.js (about)

     1  import emojis from '../../../assets/emoji.json';
     2  
     3  const maxMatches = 6;
     4  
     5  function sortAndReduce(map) {
     6    const sortedMap = new Map(Array.from(map.entries()).sort((a, b) => a[1] - b[1]));
     7    return Array.from(sortedMap.keys()).slice(0, maxMatches);
     8  }
     9  
    10  export function matchEmoji(queryText) {
    11    const query = queryText.toLowerCase().replaceAll('_', ' ');
    12    if (!query) return emojis.slice(0, maxMatches).map((e) => e.aliases[0]);
    13  
    14    // results is a map of weights, lower is better
    15    const results = new Map();
    16    for (const {aliases} of emojis) {
    17      const mainAlias = aliases[0];
    18      for (const [aliasIndex, alias] of aliases.entries()) {
    19        const index = alias.replaceAll('_', ' ').indexOf(query);
    20        if (index === -1) continue;
    21        const existing = results.get(mainAlias);
    22        const rankedIndex = index + aliasIndex;
    23        results.set(mainAlias, existing ? existing - rankedIndex : rankedIndex);
    24      }
    25    }
    26  
    27    return sortAndReduce(results);
    28  }
    29  
    30  export function matchMention(queryText) {
    31    const query = queryText.toLowerCase();
    32  
    33    // results is a map of weights, lower is better
    34    const results = new Map();
    35    for (const obj of window.config.mentionValues ?? []) {
    36      const index = obj.key.toLowerCase().indexOf(query);
    37      if (index === -1) continue;
    38      const existing = results.get(obj);
    39      results.set(obj, existing ? existing - index : index);
    40    }
    41  
    42    return sortAndReduce(results);
    43  }