code: function knParseEnv(envvar)
  {
  	if (envvar === undefined)
  		envvar = knSourcesEnvVar;
  
  	if (!process.env[envvar])
  		return ([]);
  
  	return (knParseSources(process.env[envvar]));
  }
docs: /*
  Parse the KANG_SOURCES environment variable.