bc518174
 王天杨
提交两个项目文件
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import { numericPatterns } from "../constants.mjs";
import { Parser } from "../Parser.mjs";
import { mapValue, parseNDigits, parseNumericPattern } from "../utils.mjs";
export class StandAloneMonthParser extends Parser {
priority = 110;
parse(dateString, token, match) {
const valueCallback = (value) => value - 1;
switch (token) {
// 1, 2, ..., 12
case "L":
return mapValue(
parseNumericPattern(numericPatterns.month, dateString),
valueCallback,
);
// 01, 02, ..., 12
case "LL":
return mapValue(parseNDigits(2, dateString), valueCallback);
// 1st, 2nd, ..., 12th
case "Lo":
return mapValue(
match.ordinalNumber(dateString, {
unit: "month",
}),
valueCallback,
);
// Jan, Feb, ..., Dec
case "LLL":
return (
match.month(dateString, {
width: "abbreviated",
context: "standalone",
}) ||
match.month(dateString, { width: "narrow", context: "standalone" })
);
// J, F, ..., D
case "LLLLL":
return match.month(dateString, {
width: "narrow",
context: "standalone",
});
// January, February, ..., December
case "LLLL":
default:
return (
match.month(dateString, { width: "wide", context: "standalone" }) ||
match.month(dateString, {
width: "abbreviated",
context: "standalone",
}) ||
match.month(dateString, { width: "narrow", context: "standalone" })
);
}
}
validate(_date, value) {
return value >= 0 && value <= 11;
}
set(date, _flags, value) {
date.setMonth(value, 1);
date.setHours(0, 0, 0, 0);
return date;
}
incompatibleTokens = [
"Y",
"R",
"q",
"Q",
"M",
"w",
"I",
"D",
"i",
"e",
"c",
"t",
"T",
];
}
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