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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { parse } from "./parse.ts";import type { Operator, SemVerComparator } from "./types.ts";import { COMPARATOR, re } from "./_shared.ts";import { comparatorMax } from "./comparator_max.ts";import { comparatorMin } from "./comparator_min.ts";import { ANY, NONE } from "./constants.ts";
/** * Parses a comparator string into a valid SemVerComparator. * @param comparator * @returns A valid SemVerComparator */export function parseComparator(comparator: string): SemVerComparator {  const r = re[COMPARATOR];  const m = comparator.match(r);
  if (!m) {    return NONE;  }
  const operator = (m[1] ?? "") as Operator;  const semver = m[2] ? parse(m[2]) : ANY;  const min = comparatorMin(semver, operator);  const max = comparatorMax(semver, operator);  return {    operator,    semver,    min,    max,  };}