Function parseV

scripts/compare-pr-version.ts:50–53

(s: string)

// Parse versions for comparison.
function parseV(s: string): number[] | null {
  const m = s.match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)$/);
  return m ? [Number(m[1]), Number(m[2]), Number(m[3]), Number(m[4])] : null;
}
function cmp(a: number[], b: number[]): number {
  for (let i = 0; i < 4; i++) if (a[i] !== b[i]) return a[i] - b[i];
  return 0;