43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.getLimit = exports.isFilter = exports.filterNames = void 0;
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exports.filterNames = new Set([
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"first",
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"last",
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"eq",
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"gt",
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"nth",
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"lt",
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"even",
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"odd",
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]);
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function isFilter(s) {
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if (s.type !== "pseudo")
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return false;
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if (exports.filterNames.has(s.name))
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return true;
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if (s.name === "not" && Array.isArray(s.data)) {
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// Only consider `:not` with embedded filters
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return s.data.some(function (s) { return s.some(isFilter); });
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}
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return false;
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}
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exports.isFilter = isFilter;
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function getLimit(filter, data) {
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var num = data != null ? parseInt(data, 10) : NaN;
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switch (filter) {
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case "first":
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return 1;
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case "nth":
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case "eq":
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return isFinite(num) ? (num >= 0 ? num + 1 : Infinity) : 0;
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case "lt":
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return isFinite(num) ? (num >= 0 ? num : Infinity) : 0;
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case "gt":
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return isFinite(num) ? Infinity : 0;
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default:
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return Infinity;
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}
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}
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exports.getLimit = getLimit;
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