RosettaCodeData/Task/Calendar---for-REAL-programmers/Wren/calendar---for-real-programmers-1.wren
2023-12-16 21:33:55 -08:00

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Text

IMPORT "./DATE" FOR DATE
IMPORT "./FMT" FOR FMT
IMPORT "./SEQ" FOR LST
VAR CALENDAR = FN.NEW { |YEAR|
VAR SNOOPY = "🐶"
VAR DAYS = "SU MO TU WE TH FR SA"
VAR MONTHS = [
"JANUARY", "FEBRUARY", "MARCH", "APRIL", "MAY", "JUNE",
"JULY", "AUGUST", "SEPTEMBER", "OCTOBER", "NOVEMBER", "DECEMBER"
]
FMT.PRINT("$70M", SNOOPY)
VAR YEARSTR = "--- %(YEAR) ---"
FMT.PRINT("$70M\N", YEARSTR)
VAR FIRST = LIST.FILLED(3, 0)
VAR MLEN = LIST.FILLED(3, 0)
VAR C = 0
FOR (CHUNK IN LST.CHUNKS(MONTHS, 3)) {
FOR (I IN 0..2) FMT.WRITE("$20M ", CHUNK[I])
SYSTEM.PRINT()
FOR (I IN 0..2) SYSTEM.WRITE("%(DAYS) ")
SYSTEM.PRINT()
FIRST[0] = DATE.NEW(YEAR, C*3 + 1, 1).DAYOFWEEK % 7
FIRST[1] = DATE.NEW(YEAR, C*3 + 2, 1).DAYOFWEEK % 7
FIRST[2] = DATE.NEW(YEAR, C*3 + 3, 1).DAYOFWEEK % 7
MLEN[0] = DATE.MONTHLENGTH(YEAR, C*3 + 1)
MLEN[1] = DATE.MONTHLENGTH(YEAR, C*3 + 2)
MLEN[2] = DATE.MONTHLENGTH(YEAR, C*3 + 3)
FOR (I IN 0..5) {
FOR (J IN 0..2) {
VAR START = 1 + 7 * I - FIRST[J]
FOR (K IN START..START+6) {
IF (K >= 1 && K <= MLEN[J]) {
FMT.WRITE("$2D ", K)
} ELSE {
SYSTEM.WRITE(" ")
}
}
SYSTEM.WRITE(" ")
}
SYSTEM.PRINT()
}
SYSTEM.PRINT()
C = C + 1
}
}
CALENDAR.CALL(1969)