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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getLimit = exports.isFilter = exports.filterNames = void 0;
exports.filterNames = new Set([
"first",
"last",
"eq",
"gt",
"nth",
"lt",
"even",
"odd",
]);
function isFilter(s) {
if (s.type !== "pseudo")
return false;
if (exports.filterNames.has(s.name))
return true;
if (s.name === "not" && Array.isArray(s.data)) {
// Only consider `:not` with embedded filters
return s.data.some(function (s) { return s.some(isFilter); });
}
return false;
}
exports.isFilter = isFilter;
function getLimit(filter, data, partLimit) {
var num = data != null ? parseInt(data, 10) : NaN;
switch (filter) {
case "first":
return 1;
case "nth":
case "eq":
return isFinite(num) ? (num >= 0 ? num + 1 : Infinity) : 0;
case "lt":
return isFinite(num)
? num >= 0
? Math.min(num, partLimit)
: Infinity
: 0;
case "gt":
return isFinite(num) ? Infinity : 0;
case "odd":
return 2 * partLimit;
case "even":
return 2 * partLimit - 1;
case "last":
case "not":
return Infinity;
}
}
exports.getLimit = getLimit;
//# sourceMappingURL=positionals.js.map