Semantic Versioning: Extract version info

parseVersion.js

function parseVersion(s) {
  var m = exp.exec(s);
  return (m) ?
    {
      major: m[1],
      minor: m[2],
      patch: m[3],
      pre:   m[5] || '',
      meta:  m[7] || ''
    } :
    null;
}
parseVersion.exp = /^([0-9]+)\.([0-9]+)\.([0-9]+)(-([0-9A-Za-z-\.]+))?(\+([0-9A-Za-z-\.]+))?$/;

console.log(parseVersion('1.2.3-beta+exp.sha.5114f85'));