Function parse

dotenv/parse.ts:77–113

(text: string)

 * @returns The parsed object.
 */
export function parse(text: string): Record<string, string> {
  const env: Record<string, string> = Object.create(null);

  const keysForExpandCheck = [];

  for (const match of text.matchAll(KEY_VALUE_REGEXP)) {
    const { key, interpolated, notInterpolated, unquoted } = match
      ?.groups as LineParseResult;

    if (!VALID_KEY_REGEXP.test(key)) {
      // deno-lint-ignore no-console
      console.warn(
        `Ignored the key "${key}" as it is not a valid identifier: The key need to match the pattern /^[a-zA-Z_][a-zA-Z0-9_]*$/.`,
      );
      continue;
    }

    if (unquoted) {
      keysForExpandCheck.push(key);
    }

    env[key] = typeof notInterpolated === "string"
      ? notInterpolated
      : typeof interpolated === "string"
      ? expandCharacters(interpolated)
      : unquoted.trim();
  }

  //https://github.com/motdotla/dotenv-expand/blob/ed5fea5bf517a09fd743ce2c63150e88c8a5f6d1/lib/main.js#L23
  const variablesMap = { ...env };

  for (const key of keysForExpandCheck) {
    env[key] = expand(env[key]!, variablesMap);
  }

  return env;
}