Garmelon/Arbeitszeitdokumentationsgenerator
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Simplify public holiday calculations

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Joscha 2024-12-13 20:44:09 +01:00
parent 9842070869
commit 5613173505
1 changed files with 5 additions and 73 deletions
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78
kit_timesheet.typ
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@ -268,74 +268,6 @@
_pad_int(m, char: "0", width: 2)
}
#let _divides(divident, divisor) = calc.rem(divident, divisor) == 0
#let _is_leap_year(year) = _divides(year, 4) and not (_divides(year, 100) and not _divides(year, 400))
#let _month_length(year, month) = {
assert(1 <= month and month <= 12)
if (1, 3, 5, 7, 8, 10, 12).contains(month) {
31
} else if (4, 6, 9, 11).contains(month) {
30
} else if _is_leap_year(year) {
29
} else {
28
}
}
#let _next_day(date) = {
let year = date.year()
let month = date.month()
let day = date.day()
if day < _month_length(year, month) {
day += 1
} else if month < 12 {
month += 1
day = 1
} else {
year += 1
month = 1
day = 1
}
datetime(year: year, month: month, day: day)
}
#let _prev_day(date) = {
let year = date.year()
let month = date.month()
let day = date.day()
if day > 1 {
day -= 1
} else if month > 1 {
month -= 1
day = _month_length(year, month)
} else {
year -= 1
month = 12
day = 31
}
datetime(year: year, month: month, day: day)
}
#let _move_by(date, days) = {
while days > 0 {
date = _next_day(date)
days -= 1
}
while days < 0 {
date = _prev_day(date)
days += 1
}
date
}
#let _computus(year) = {
// https://en.wikipedia.org/wiki/Date_of_Easter#Anonymous_Gregorian_algorithm
let Y = year
@ -368,12 +300,12 @@
(
(name: "Neujahr", date: datetime(year: year, month: 1, day: 1)),
(name: "Heilige Drei Könige", date: datetime(year: year, month: 1, day: 6)),
(name: "Karfreitag", date: _move_by(easter, -2)),
(name: "Ostermontag", date: _move_by(easter, 1)),
(name: "Karfreitag", date: easter - duration(days: 2)),
(name: "Ostermontag", date: easter + duration(days: 1)),
(name: "Tag der Arbeit", date: datetime(year: year, month: 5, day: 1)),
(name: "Christi Himmelfahrt", date: _move_by(easter, 39)),
(name: "Pfingstmontag", date: _move_by(easter, 50)),
(name: "Fronleichnam", date: _move_by(easter, 60)),
(name: "Christi Himmelfahrt", date: easter + duration(days: 39)),
(name: "Pfingstmontag", date: easter + duration(days: 50)),
(name: "Fronleichnam", date: easter + duration(days: 60)),
(name: "Tag der Deutschen Einheit", date: datetime(year: year, month: 10, day: 3)),
(name: "Allerheiligen", date: datetime(year: year, month: 11, day: 1)),
(name: "Erster Weihnachtsfeiertag", date: datetime(year: year, month: 12, day: 25)),