@grafana/ui/dist/cjs/utils/fuzzy.cjs

Grafana Components Library

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

"use strict";
function fuzzyMatch(stack, needle) {
  let distance = 0, searchIndex = stack.indexOf(needle);
  needle = needle.replace(/\s/g, "");
  const ranges = [];
  if (searchIndex !== -1) {
    return {
      distance: 0,
      found: true,
      ranges: [{ start: searchIndex, end: searchIndex + needle.length - 1 }]
    };
  }
  for (const letter of needle) {
    const letterIndex = stack.indexOf(letter, searchIndex);
    if (letterIndex === -1) {
      return { distance: Infinity, ranges: [], found: false };
    }
    if (searchIndex !== -1) {
      distance += letterIndex - searchIndex;
    }
    searchIndex = letterIndex + 1;
    if (ranges.length === 0) {
      ranges.push({ start: letterIndex, end: letterIndex });
    } else {
      const lastRange = ranges.at(-1);
      if (letterIndex === lastRange.end + 1) {
        lastRange.end++;
      } else {
        ranges.push({ start: letterIndex, end: letterIndex });
      }
    }
  }
  return {
    distance,
    ranges,
    found: true
  };
}

exports.fuzzyMatch = fuzzyMatch;
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