numbers_util.js 1.4 KB

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  1. import { Span } from '../audio/span.js';
  2. import * as DomUtil from '../common/dom_util.js';
  3. import { LOCALE } from '../l10n/locale.js';
  4. import { convertVulgarFraction } from '../l10n/transformers.js';
  5. export function ordinalCounter(_node, context) {
  6. let counter = 0;
  7. return function () {
  8. return LOCALE.NUMBERS.numericOrdinal(++counter) + ' ' + context;
  9. };
  10. }
  11. export function wordCounter(_node, context) {
  12. let counter = 0;
  13. return function () {
  14. return LOCALE.NUMBERS.numberToOrdinal(++counter, false) + ' ' + context;
  15. };
  16. }
  17. export function vulgarFraction(node) {
  18. const conversion = convertVulgarFraction(node, LOCALE.MESSAGES.MS.FRAC_OVER);
  19. if (conversion.convertible &&
  20. conversion.enumerator &&
  21. conversion.denominator) {
  22. return [
  23. Span.node(LOCALE.NUMBERS.numberToWords(conversion.enumerator), node.childNodes[0].childNodes[0], { separator: '' }),
  24. Span.stringAttr(LOCALE.NUMBERS.vulgarSep, { separator: '' }),
  25. Span.node(LOCALE.NUMBERS.numberToOrdinal(conversion.denominator, conversion.enumerator !== 1), node.childNodes[0].childNodes[1])
  26. ];
  27. }
  28. return [Span.node(conversion.content || '', node)];
  29. }
  30. export function ordinalPosition(node) {
  31. const children = DomUtil.toArray(node.parentNode.childNodes);
  32. return Span.singleton(LOCALE.NUMBERS.numericOrdinal(children.indexOf(node) + 1).toString());
  33. }