ISODayParser.mjs
2.48 KB
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import { setISODay } from "../../../setISODay.mjs";
import { Parser } from "../Parser.mjs";
import { mapValue, parseNDigits } from "../utils.mjs";
// ISO day of week
export class ISODayParser extends Parser {
priority = 90;
parse(dateString, token, match) {
const valueCallback = (value) => {
if (value === 0) {
return 7;
}
return value;
};
switch (token) {
// 2
case "i":
case "ii": // 02
return parseNDigits(token.length, dateString);
// 2nd
case "io":
return match.ordinalNumber(dateString, { unit: "day" });
// Tue
case "iii":
return mapValue(
match.day(dateString, {
width: "abbreviated",
context: "formatting",
}) ||
match.day(dateString, {
width: "short",
context: "formatting",
}) ||
match.day(dateString, {
width: "narrow",
context: "formatting",
}),
valueCallback,
);
// T
case "iiiii":
return mapValue(
match.day(dateString, {
width: "narrow",
context: "formatting",
}),
valueCallback,
);
// Tu
case "iiiiii":
return mapValue(
match.day(dateString, {
width: "short",
context: "formatting",
}) ||
match.day(dateString, {
width: "narrow",
context: "formatting",
}),
valueCallback,
);
// Tuesday
case "iiii":
default:
return mapValue(
match.day(dateString, {
width: "wide",
context: "formatting",
}) ||
match.day(dateString, {
width: "abbreviated",
context: "formatting",
}) ||
match.day(dateString, {
width: "short",
context: "formatting",
}) ||
match.day(dateString, {
width: "narrow",
context: "formatting",
}),
valueCallback,
);
}
}
validate(_date, value) {
return value >= 1 && value <= 7;
}
set(date, _flags, value) {
date = setISODay(date, value);
date.setHours(0, 0, 0, 0);
return date;
}
incompatibleTokens = [
"y",
"Y",
"u",
"q",
"Q",
"M",
"L",
"w",
"d",
"D",
"E",
"e",
"c",
"t",
"T",
];
}