70 lines
2.4 KiB
JavaScript
70 lines
2.4 KiB
JavaScript
import { SemanticRole, SemanticType } from '../semantic_tree/semantic_meaning.js';
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export function pluralCase(num, _plural) {
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return num.toString();
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}
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export function identityTransformer(input) {
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return input.toString();
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}
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export function siCombiner(prefix, unit) {
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return prefix + unit.toLowerCase();
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}
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export const Combiners = {};
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Combiners.identityCombiner = function (a, b, c) {
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return a + b + c;
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};
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Combiners.prefixCombiner = function (letter, font, cap) {
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letter = cap ? cap + ' ' + letter : letter;
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return font ? font + ' ' + letter : letter;
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};
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Combiners.postfixCombiner = function (letter, font, cap) {
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letter = cap ? cap + ' ' + letter : letter;
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return font ? letter + ' ' + font : letter;
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};
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Combiners.romanceCombiner = function (letter, font, cap) {
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letter = cap ? letter + ' ' + cap : letter;
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return font ? letter + ' ' + font : letter;
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};
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export function convertVulgarFraction(node, over = '') {
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if (!node.childNodes ||
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!node.childNodes[0] ||
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!node.childNodes[0].childNodes ||
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node.childNodes[0].childNodes.length < 2 ||
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node.childNodes[0].childNodes[0].tagName !==
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SemanticType.NUMBER ||
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node.childNodes[0].childNodes[0].getAttribute('role') !==
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SemanticRole.INTEGER ||
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node.childNodes[0].childNodes[1].tagName !==
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SemanticType.NUMBER ||
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node.childNodes[0].childNodes[1].getAttribute('role') !==
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SemanticRole.INTEGER) {
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return { convertible: false, content: node.textContent };
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}
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const denStr = node.childNodes[0].childNodes[1].textContent;
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const enumStr = node.childNodes[0].childNodes[0].textContent;
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const denominator = Number(denStr);
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const enumerator = Number(enumStr);
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if (isNaN(denominator) || isNaN(enumerator)) {
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return {
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convertible: false,
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content: `${enumStr} ${over} ${denStr}`
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};
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}
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return {
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convertible: true,
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enumerator: enumerator,
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denominator: denominator
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};
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}
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export function vulgarFractionSmall(node, enumer, denom) {
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const conversion = convertVulgarFraction(node);
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if (conversion.convertible) {
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const enumerator = conversion.enumerator;
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const denominator = conversion.denominator;
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return (enumerator > 0 &&
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enumerator < enumer &&
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denominator > 0 &&
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denominator < denom);
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}
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return false;
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}
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