process-line.js 522 B

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  1. /* eslint-disable camelcase -- cache index access */
  2. /**
  3. * If line is commented out or empty, return null.
  4. * Otherwise, return trimmed line.
  5. *
  6. * @param {string} line
  7. */
  8. module.exports.processLine = (line) => {
  9. if (!line) {
  10. return null;
  11. }
  12. const line_0 = line[0];
  13. if (
  14. line_0 === '#'
  15. || line_0 === ' '
  16. || line_0 === '\r'
  17. || line_0 === '\n'
  18. || line_0 === '!'
  19. ) {
  20. return null;
  21. }
  22. const trimmed = line.trim();
  23. if (trimmed === '') {
  24. return null;
  25. }
  26. return trimmed;
  27. };