French Republican calendar: Difference between revisions
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{{
Write a program to convert dates between the [[wp:Gregorian calendar|Gregorian calendar]] and the [[wp:French Republican Calendar|French Republican calendar]].
Line 18:
• 10 Nivôse 14 = 31 December 1805
=={{header|BBC BASIC}}==
Computes leap years using the "continuous" method: a year in the Republican calendar is a leap year if and only if the number of the <i>following</i> year is divisible by 4 but not by 100 unless also by 400. No attempt is made to deal with ill-formed or invalid input dates.
<
:
DIM gregorian$(11)
Line 147 ⟶ 146:
m% = 1
y% += 1
IF FN_rep_leap(y%) THEN sansculottides% = 6 ELSE sansculottides% = 5
ENDIF
ENDIF
Line 154:
DEF FN_rep_leap(year%)
REM see comment at the beginning of FN_rep_to_day
= (
:
DEF FN_gre_leap(year%)
= (year% MOD 4 = 0 AND (year% MOD 100 <> 0 OR year% MOD 400 = 0))</
<b>Output for the test dates:</b>
<pre>*** French Republican ***
Line 195:
> 19 September 2016
Fete du travail 224</pre>
=={{header|FreeBASIC}}==
{{trans|BBC BASIC}}
Computes leap years using the "continuous" method: a year in the Republican calendar is a leap year if and only if the number of the <i>following</i> year is divisible by 4 but not by 100 unless also by 400. No attempt is made to deal with ill-formed or invalid input dates.
<syntaxhighlight lang="freebasic">' version 18 Pluviose 227
' compile with: fbc -s console
' retained the original comments for then BBC BASIC entry
#Macro rep_leap (_year)
' see comment at the beginning of rep_to_day
((_year +1) Mod 4 = 0 And ((_year +1) Mod 100 <> 0 Or (_year +1) Mod 400 = 0))
#EndMacro
#Macro gre_leap (_year)
(_year Mod 4 = 0 And (_year Mod 100 <> 0 Or _year Mod 400 = 0))
#EndMacro
Dim Shared As UInteger gregorian(11) => {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
Dim Shared As String gregorian_s(11), republican(11), sanscolottides(5)
' 7-bit ASCII encoding, so no accents on French words
Data "January", "February", "March", "April", "May", "June"
Data "July", "August", "September", "October", "November", "December"
Data "Vendemiaire", "Brumaire", "Frimaire","Nivose", "Pluviose", "Ventose"
Data "Germinal", "Floreal", "Prairial", "Messidor", "Thermidor", "Fructidor"
Data "Fete de la Vertu", "Fete du Genie", "Fete du Travail", "Fete de l'Opinion"
Data "Fete des Recompenses","Fete de la Revolution"
Restore
For i As UInteger = 0 To 11
Read gregorian_s(i)
Next
For i As UInteger = 0 To 11
Read republican(i)
Next
For i As UInteger = 0 To 5
Read sanscolottides(i)
Next
Sub split(s As String, ByRef d As UInteger, ByRef m As UInteger, ByRef y As UInteger)
Dim As String month_and_year, Month
Dim As UInteger i
s = LCase(Trim(s)) : d = 0 : m = 0 : y = 0
If Left(s,4) = "fete" Then
m = 13
For i = 0 To 5
If Left(s, Len(sanscolottides(i))) = LCase(sanscolottides(i)) Then
d = i +1
y = Val(Right(s, Len(s) - Len(sanscolottides(i)) -1))
End If
Next
Else
d = Val(Left(s, InStr(s, " ") -1))
month_and_year = Mid(s, InStr(s, " ") +1)
Month = Left(month_and_year, InStr(month_and_year, " ") -1)
y = Val(Mid(month_and_year, InStr(month_and_year, " ") +1))
If y < 1792 Then
For i = 0 To 11
If LCase(republican(i)) = Month Then m = i +1
Next
Else
For i = 0 To 11
If LCase(gregorian_s(i)) = Month Then m = i +1
Next
End If
End If
End Sub
Sub day_to_gre(Day As UInteger, ByRef d As UInteger, ByRef m As UInteger, ByRef y As UInteger)
y = Fix(Day / 365.25)
d = Day - Fix(365.25 * y) + 21
y += 1792
d += y \ 100 - y \ 400 - 13
m = 8
While d > gregorian(m)
d -= gregorian(m)
m += 1
If m = 12 Then
m = 0
y += 1
If gre_leap(y) Then gregorian(1) = 29 Else gregorian(1) = 28
End If
Wend
gregorian(1) = 28
m += 1
End Sub
Function gre_to_day(d As UInteger, m As UInteger, y As UInteger) As UInteger
' modified & repurposed from code given at
' https://www.staff.science.uu.nl/~gent0113/calendar/isocalendar_text5.htm
If m < 3 Then
y -= 1
m += 12
End If
Return Fix(365.25 * y) - y \ 100 + y \ 400 + Fix(30.6 * (m +1)) + d - 654842
End Function
Function rep_to_day(d As UInteger, m As UInteger, y As UInteger) As UInteger
' assume that a year is a leap year iff the _following_ year is
' divisible by 4, but not by 100 unless also by 400
'
' other methods for computing republican leap years exist
If m = 13 Then
m -= 1
d += 30
End If
If rep_leap(y) Then d -= 1
Return 365 * y + (y +1) \ 4 - (y +1) \ 100 + (y +1) \ 400 + 30 * m + d - 395
End Function
Sub day_to_rep(Day As UInteger, ByRef d As UInteger, ByRef m As UInteger, ByRef y As UInteger)
Dim As UInteger sansculottides = 5
y = Fix(Day / 365.25)
If rep_leap(y) Then y -= 1
d = Day - Fix(365.25 * y) + (y +1) \ 100 - (y +1) \ 400
y += 1
m = 1
If rep_leap(y) Then sansculottides = 6
While d > 30
d -= 30
m += 1
If m = 13 Then
If d > sansculottides Then
d -= sansculottides
m = 1
y += 1
If rep_leap(y) Then sansculottides = 6 Else sansculottides = 5
End If
End If
Wend
End Sub
' ------=< main >=------
Dim As UInteger Day, Month, Year
Dim As String src
Print "*** French Republican ***"
Print "*** calendar converter ***"
Print "Enter a date to convert, in the format 'day month year'"
Print "e.g.: 1 Prairial 3,"
Print " 20 May 1795."
Print "For Sansculottides, use 'day year'"
Print "e.g.: Fete de l'opinion 9."
Print "Or just press 'RETURN' to exit the program."
Print
Do
Line Input "> ", src
If src <> "" Then
split(src, Day, Month, Year)
If Day = 0 Or Month = 0 Or Year <= 0 Then
Print "Error in input"
Continue Do
End If
' for simplicity, we assume that years up to 1791 are republican
' and years from 1792 onwards are gregorian
If Year < 1792 Then
' convert republican date to number of days elapsed
' since 21 september 1792, then convert that number
' to the gregorian date
day_to_gre(rep_to_day(Day, Month, Year),Day, Month, Year)
Print; Day; " "; gregorian_s(Month -1); " "; Year
Else
' convert gregorian date to republican, via
' number of days elapsed since 21 september 1792
day_to_rep(gre_to_day(Day, Month, Year), Day, Month, Year)
If Month = 13 Then
Print sanscolottides(Day -1); " "; Year
Else
Print ; Day; " "; republican(Month -1); " "; Year
End If
End If
End If
Loop Until src = ""
End</syntaxhighlight>
{{out}}
<pre>> 1 Vendemiaire 1 > 22 September 1792 > 1 Vendemiaire 1 > 23 September 1806 > 1 Vendemiaire 15
22 September 1792 1 Vendemiaire 1 22 September 1792 1 Vendemiaire 15 23 September 1806
> 22 September 1792 > 22 September 1793 > 1 Vendemiaire 2 > 24 September 1807 > 1 Vendemiaire 16
1 Vendemiaire 1 1 Vendemiaire 2 22 September 1793 1 Vendemiaire 16 24 September 1807
> 1 Prairial 3 > 22 September 1794 > 1 Vendemiaire 3 > 23 September 1808 > 1 Vendemiaire 17
20 May 1795 1 Vendemiaire 3 22 September 1794 1 Vendemiaire 17 23 September 1808
> 20 May 1795 > 23 September 1795 > 1 Vendemiaire 4 > 23 September 1809 > 1 Vendemiaire 18
1 Prairial 3 1 Vendemiaire 4 23 September 1795 1 Vendemiaire 18 23 September 1809
> 27 Messidor 7 > 22 September 1796 > 1 Vendemiaire 5 > 23 September 1810 > 1 Vendemiaire 19
15 July 1799 1 Vendemiaire 5 22 September 1796 1 Vendemiaire 19 23 September 1810
> 15 July 1799 > 22 September 1797 > 1 Vendemiaire 6 > 24 September 1811 > 1 Vendemiaire 20
27 Messidor 7 1 Vendemiaire 6 22 September 1797 1 Vendemiaire 20 24 September 1811
> Fete de la Revolution 11 > 22 September 1798 > 1 Vendemiaire 7 > 23 September 2015 > 1 Vendemiaire 224
23 September 1803 1 Vendemiaire 7 22 September 1798 1 Vendemiaire 224 23 September 2015
> 23 September 1803 > 23 September 1799 > 1 Vendemiaire 8 > 22 September 2016 > 1 Vendemiaire 225
Fete de la Revolution 11 1 Vendemiaire 8 23 September 1799 1 Vendemiaire 225 22 September 2016
> 10 Nivose 14 > 23 September 1800 > 1 Vendemiaire 9 > 22 September 2017 > 1 Vendemiaire 226
31 December 1805 1 Vendemiaire 9 23 September 1800 1 Vendemiaire 226 22 September 2017
> 31 December 1805 > 23 September 1801 > 1 Vendemiaire 10 > 22 September 2018 > 1 Vendemiaire 227
10 Nivose 14 1 Vendemiaire 10 23 September 1801 1 Vendemiaire 227 22 September 2018
> 23 September 1802 > 1 Vendemiaire 11 > 23 September 2019 > 1 Vendemiaire 228
1 Vendemiaire 11 23 September 1802 1 Vendemiaire 228 23 September 2019
> 24 September 1803 > 1 Vendemiaire 12 > 22 September 2020 > 1 Vendemiaire 229
1 Vendemiaire 12 24 September 1803 1 Vendemiaire 229 22 September 2020
> 23 September 1804 > 1 Vendemiaire 13
1 Vendemiaire 13 23 September 1804
> 23 September 1805 > 1 Vendemiaire 14
1 Vendemiaire 14 23 September 1805</pre>
=={{header|F_Sharp|F#}}==
<syntaxhighlight lang="fsharp">
// French Republican Calander: Nigel Galloway. April 16th., 2021
let firstDay=System.DateTime.Parse("22/9/1792")
type monthsFRC= Vendemiaire = 0
|Brumaire = 30
|Frimaire = 60
|Nivose = 90
|Pluviose = 120
|Ventose = 150
|Germinal = 180
|Floral = 210
|Prairial = 240
|Messidor = 270
|Thermidor = 300
|Fructidor = 330
|Virtue = 360
|Talent = 361
|Labour = 362
|Opinion = 363
|Honours = 364
|Revolution = 365
type months= January = 1
|February = 2
|March = 3
|April = 4
|May = 5
|June = 6
|July = 7
|August = 8
|September = 9
|October = 10
|November = 11
|December = 12
let frc2Greg n (g:monthsFRC) l=firstDay+System.TimeSpan.FromDays(float((l-1)*365+l/4+(int g)+n-1))
let rec fG n g=let i=match g with 3 |7 |11->366 |_->365 in if n<i then (n,g) else fG(n-i)(g+1)
let Greg2FRC n=let n,g=fG((n-firstDay).Days) 1
match n/30,n%30 with (12,n)->(1,enum<monthsFRC>(360+n),g) |(n,l)->(l+1,enum<monthsFRC>(n*30),g)
let n=(frc2Greg 1 monthsFRC.Vendemiaire 1) in printfn "%d %s %d -> %d %A %d" 1 "Vendemiaire" 1 n.Day (enum<months> n.Month) n.Year
let n=(frc2Greg 27 monthsFRC.Messidor 7) in printfn "%d %s %d -> %d %A %d" 27 "Messidor" 7 n.Day (enum<months> n.Month) n.Year
let n=(frc2Greg 1 monthsFRC.Revolution 11) in printfn "%d %s %d -> %d %A %d" 1 "Revolution" 11 n.Day (enum<months> n.Month) n.Year
let n=(frc2Greg 10 monthsFRC.Nivose 14) in printfn "%d %s %d -> %d %A %d" 10 "Nivose" 14 n.Day (enum<months> n.Month) n.Year
let n,g,l=Greg2FRC(System.DateTime(1792,9,22)) in printfn "%d %s %d -> %d %A %d" 22 "September" 1792 n g l
let n,g,l=Greg2FRC(System.DateTime(1799,7,15)) in printfn "%d %s %d -> %d %A %d" 15 "July" 1799 n g l
let n,g,l=Greg2FRC(System.DateTime(1803,9,23)) in printfn "%d %s %d -> %d %A %d" 23 "September" 1803 n g l
let n,g,l=Greg2FRC(System.DateTime(1805,12,31)) in printfn "%d %s %d -> %d %A %d" 31 "December" 1805 n g l
</syntaxhighlight>
{{out}}
<pre>
1 Vendemiaire 1 -> 22 September 1792
27 Messidor 7 -> 15 July 1799
1 Revolution 11 -> 23 September 1803
10 Nivose 14 -> 31 December 1805
22 September 1792 -> 1 Vendemiaire 1
15 July 1799 -> 27 Messidor 7
23 September 1803 -> 1 Revolution 11
31 December 1805 -> 10 Nivose 14
</pre>
=={{header|Go}}==
{{trans|BBC Basic}}
A rather literal port, just for reference. Far from idiomatic Go.
<syntaxhighlight lang="go">package main
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
var (
gregorianStr = []string{"January", "February", "March",
"April", "May", "June",
"July", "August", "September",
"October", "November", "December"}
gregorian = []int{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
republicanStr = []string{"Vendemiaire", "Brumaire", "Frimaire",
"Nivose", "Pluviose", "Ventose",
"Germinal", "Floreal", "Prairial",
"Messidor", "Thermidor", "Fructidor"}
sansculottidesStr = []string{"Fete de la vertu", "Fete du genie",
"Fete du travail", "Fete de l'opinion",
"Fete des recompenses", "Fete de la Revolution"}
)
func main() {
fmt.Println("*** French Republican ***")
fmt.Println("*** calendar converter ***")
fmt.Println("Enter a date to convert, in the format 'day month year'")
fmt.Println("e.g.: 1 Prairial 3,")
fmt.Println(" 20 May 1795.")
fmt.Println("For Sansculottides, use 'day year'")
fmt.Println("e.g.: Fete de l'opinion 9.")
fmt.Println("Or just press 'RETURN' to exit the program.")
fmt.Println()
for sc := bufio.NewScanner(os.Stdin); ; {
fmt.Print("> ")
sc.Scan()
src := sc.Text()
if src == "" {
return
}
day, month, year := split(src)
if year < 1792 {
day, month, year = dayToGre(repToDay(day, month, year))
fmt.Println(day, gregorianStr[month-1], year)
} else {
day, month, year := dayToRep(greToDay(day, month, year))
if month == 13 {
fmt.Println(sansculottidesStr[day-1], year)
} else {
fmt.Println(day, republicanStr[month-1], year)
}
}
}
}
func split(s string) (d, m, y int) {
if strings.HasPrefix(s, "Fete") {
m = 13
for i, sc := range sansculottidesStr {
if strings.HasPrefix(s, sc) {
d = i + 1
y, _ = strconv.Atoi(s[len(sc)+1:])
}
}
} else {
d, _ = strconv.Atoi(s[:strings.Index(s, " ")])
my := s[strings.Index(s, " ")+1:]
mStr := my[:strings.Index(my, " ")]
y, _ = strconv.Atoi(my[strings.Index(my, " ")+1:])
months := gregorianStr
if y < 1792 {
months = republicanStr
}
for i, mn := range months {
if mn == mStr {
m = i + 1
}
}
}
return
}
func greToDay(d, m, y int) int {
if m < 3 {
y--
m += 12
}
return y*36525/100 - y/100 + y/400 + 306*(m+1)/10 + d - 654842
}
func repToDay(d, m, y int) int {
if m == 13 {
m--
d += 30
}
if repLeap(y) {
d--
}
return 365*y + (y+1)/4 - (y+1)/100 + (y+1)/400 + 30*m + d - 395
}
func dayToGre(day int) (d, m, y int) {
y = day * 100 / 36525
d = day - y*36525/100 + 21
y += 1792
d += y/100 - y/400 - 13
m = 8
for d > gregorian[m] {
d -= gregorian[m]
m++
if m == 12 {
m = 0
y++
if greLeap(y) {
gregorian[1] = 29
} else {
gregorian[1] = 28
}
}
}
m++
return
}
func dayToRep(day int) (d, m, y int) {
y = (day-1) * 100 / 36525
if repLeap(y) {
y--
}
d = day - (y+1)*36525/100 + 365 + (y+1)/100 - (y+1)/400
y++
m = 1
sansculottides := 5
if repLeap(y) {
sansculottides = 6
}
for d > 30 {
d -= 30
m += 1
if m == 13 {
if d > sansculottides {
d -= sansculottides
m = 1
y++
sansculottides = 5
if repLeap(y) {
sansculottides = 6
}
}
}
}
return
}
func repLeap(year int) bool {
return (year+1)%4 == 0 && ((year+1)%100 != 0 || (year+1)%400 == 0)
}
func greLeap(year int) bool {
return year%4 == 0 && (year%100 != 0 || year%400 == 0)
}</syntaxhighlight>
{{out}}
<pre>
$ go run frc.go
*** French Republican ***
*** calendar converter ***
Enter a date to convert, in the format 'day month year'
e.g.: 1 Prairial 3,
20 May 1795.
For Sansculottides, use 'day year'
e.g.: Fete de l'opinion 9.
Or just press 'RETURN' to exit the program.
> 1 Vendemiaire 1
22 September 1792
> 22 September 1792
1 Vendemiaire 1
> 1 Prairial 3
20 May 1795
> 20 May 1795
1 Prairial 3
> 27 Messidor 7
15 July 1799
> 15 July 1799
27 Messidor 7
> Fete de la Revolution 11
23 September 1803
> 23 September 1803
Fete de la Revolution 11
> 10 Nivose 14
31 December 1805
> 31 December 1805
10 Nivose 14
>
$
</pre>
'''More idiomatic'''
A start anyway. Computations extracted to a package, a type defined for French Republican Dates, time package from standard library used. Ignores invalid input rather than panicking.
<syntaxhighlight lang="go">package frc
import (
"fmt"
"strconv"
"strings"
"time"
)
type Date struct {
Year int
Month int
Day int
}
func (d Date) String() string {
if d.Month == 13 {
return fmt.Sprintf("%s %d", sansculotidesStr[d.Day-1], d.Year)
}
return fmt.Sprintf("%d %s %d", d.Day, republicanStr[d.Month-1], d.Year)
}
func Parse(s string) (dt Date, ok bool) {
f := strings.Fields(s)
var err error
switch {
case len(f) == 3:
if dt.Day, err = strconv.Atoi(f[0]); err != nil {
return
}
i := 0
for republicanStr[i] != f[1] {
i++
if i == len(republicanStr) {
return
}
}
dt.Month = i + 1
if dt.Year, err = strconv.Atoi(f[2]); err != nil {
return
}
ok = true
return
case len(f) > 3:
for i, sc := range sansculotidesStr {
if strings.HasPrefix(s, sc) {
dt.Month = 13
dt.Day = i + 1
dt.Year, err = strconv.Atoi(s[len(sc)+1:])
if err == nil {
ok = true
}
return
}
}
}
return
}
func (dt Date) ToGregorian() (y int, m time.Month, d int) {
yr, mn, dy := dayToGre(repToDay(dt.Day, dt.Month, dt.Year))
return yr, time.Month(mn), dy
}
func FromGregorian(y int, m time.Month, d int) Date {
day, month, year := dayToRep(greToDay(d, int(m), y))
return Date{Year: year, Month: month, Day: day}
}
var (
gregorian = []int{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
republicanStr = []string{"Vendemiaire", "Brumaire", "Frimaire",
"Nivose", "Pluviose", "Ventose",
"Germinal", "Floreal", "Prairial",
"Messidor", "Thermidor", "Fructidor"}
sansculotidesStr = []string{"Fete de la vertu", "Fete du genie",
"Fete du travail", "Fete de l'opinion",
"Fete des recompenses", "Fete de la Revolution"}
)
func greToDay(d, m, y int) int {
if m < 3 {
y--
m += 12
}
return y*36525/100 - y/100 + y/400 + 306*(m+1)/10 + d - 654842
}
func repToDay(d, m, y int) int {
if m == 13 {
m--
d += 30
}
if repLeap(y) {
d--
}
return 365*y + (y+1)/4 - (y+1)/100 + (y+1)/400 + 30*m + d - 395
}
func dayToGre(day int) (d, m, y int) {
y = day * 100 / 36525
d = day - y*36525/100 + 21
y += 1792
d += y/100 - y/400 - 13
m = 8
for d > gregorian[m] {
d -= gregorian[m]
m++
if m == 12 {
m = 0
y++
if greLeap(y) {
gregorian[1] = 29
} else {
gregorian[1] = 28
}
}
}
m++
return
}
func dayToRep(day int) (d, m, y int) {
y = (day-1) * 100 / 36525
if repLeap(y) {
y--
}
d = day - (y+1)*36525/100 + 365 + (y+1)/100 - (y+1)/400
y++
m = 1
sansculottides := 5
if repLeap(y) {
sansculottides = 6
}
for d > 30 {
d -= 30
m += 1
if m == 13 {
if d > sansculottides {
d -= sansculottides
m = 1
y++
sansculottides = 5
if repLeap(y) {
sansculottides = 6
}
}
}
}
return
}
func repLeap(year int) bool {
return (year+1)%4 == 0 && ((year+1)%100 != 0 || (year+1)%400 == 0)
}
func greLeap(year int) bool {
return year%4 == 0 && (year%100 != 0 || year%400 == 0)
}</syntaxhighlight>
<syntaxhighlight lang="go">package main
import (
"bufio"
"fmt"
"os"
"time"
"frc"
)
func main() {
fmt.Println("*** French Republican ***")
fmt.Println("*** calendar converter ***")
fmt.Println("Enter a date to convert, in the format 'day month year'")
fmt.Println("e.g.: 1 Prairial 3,")
fmt.Println(" 20 May 1795.")
fmt.Println("For Sansculottides, use 'day year'")
fmt.Println("e.g.: Fete de l'opinion 9.")
fmt.Println("Or just press 'RETURN' to exit the program.")
fmt.Println()
for sc := bufio.NewScanner(os.Stdin); ; {
fmt.Print("> ")
sc.Scan()
src := sc.Text()
if src == "" {
return
}
f, ok := frc.Parse(src)
if ok {
fmt.Println(f.ToGregorian())
continue
}
t, err := time.Parse(`2 January 2006`, src)
if err == nil {
fmt.Println(frc.FromGregorian(t.Date()))
}
}
}</syntaxhighlight>
=={{header|Julia}}==
To stay within historical dates, will throw a domain error if the French Republican date is outside the interval the calendar was actually used.
<syntaxhighlight lang="julia">using Dates
const GC_FORMAT = DateFormat("d U y")
const RC_FIRST_DAY = Date(1792, 9, 22)
const MAX_RC_DATE = Date(1805, 12, 31)
const RC_MONTHS = [
"Vendémiaire", "Brumaire", "Frimaire", "Nivôse", "Pluviôse", "Ventôse",
"Germinal", "Floréal", "Prairial", "Messidor", "Thermidor", "Fructidor"
]
const RC_DAYS_IN_MONTH = 30
const RC_SANSCULOTTIDES = [
"Fête de la vertu", "Fête du génie", "Fête du travail",
"Fête de l'opinion", "Fête des récompenses", "Fête de la Révolution"
]
additionaldaysforyear(yr) = yr > 11 ? 3 : yr > 7 ? 2 : yr > 3 ? 1 : 0
additionaldaysformonth(mo) = 30 * (mo - 1)
daysforFete(s) = findfirst(x -> x == s, RC_SANSCULOTTIDES) + 359
function togregorian(rc::String)
yearstring, firstpart = reverse.(split(reverse(strip(rc)), r"\s+", limit=2))
rcyear = parse(Int, yearstring)
pastyeardays = (rcyear - 1) * 365 + additionaldaysforyear(rcyear)
if isnumeric(firstpart[1])
daystring, monthstring = split(firstpart, r"\s+", limit=2)
nmonth = findfirst(x -> x == monthstring, RC_MONTHS)
pastmonthdays = 30 * (nmonth - 1)
furtherdays = parse(Int, daystring) + pastmonthdays + pastyeardays - 1
else
furtherdays = daysforFete(firstpart) + pastyeardays
end
gregorian = RC_FIRST_DAY + Day(furtherdays)
if furtherdays < 0 || gregorian > MAX_RC_DATE
throw(DomainError("French Republican Calendar date out of range"))
end
return Day(gregorian).value, monthname(Month(gregorian).value), Year(gregorian).value
end
function torepublican(gc::String)
date = Date(DateTime(gc, GC_FORMAT))
if date < RC_FIRST_DAY || date > MAX_RC_DATE
throw(DomainError("French Republican Calendar date out of range"))
end
rcyear, rcdays = divrem(((date - RC_FIRST_DAY).value + 366), 365)
rcdays -= additionaldaysforyear(rcyear)
if rcdays < 1
rcyear -= 1
rcdays += 366
end
if rcdays < 361
nmonth, rcday = divrem(rcdays, 30)
return rcday, RC_MONTHS[nmonth + 1], rcyear
else
return RC_SANSCULOTTIDES[rcdays - 360], rcyear
end
end
const republican = [
"1 Vendémiaire 1", "1 Prairial 3", "27 Messidor 7",
"Fête de la Révolution 11", "10 Nivôse 14"
]
const gregorian = [
"22 September 1792", "20 May 1795", "15 July 1799",
"23 September 1803", "31 December 1805"
]
function testrepublicancalendar()
println("French Republican to Gregorian")
for s in republican
println(lpad(s, 24), " => ", togregorian(s))
end
println("Gregorian to French Republican")
for s in gregorian
println(lpad(s, 24), " => ", torepublican(s))
end
end
testrepublicancalendar()
</syntaxhighlight>{{out}}
<pre>
French Republican to Gregorian
1 Vendémiaire 1 => (22, "September", 1792)
1 Prairial 3 => (20, "May", 1795)
27 Messidor 7 => (15, "July", 1799)
Fête de la Révolution 11 => (23, "September", 1803)
10 Nivôse 14 => (31, "December", 1805)
Gregorian to French Republican
22 September 1792 => (1, "Vendémiaire", 1)
20 May 1795 => (1, "Prairial", 3)
15 July 1799 => (27, "Messidor", 7)
23 September 1803 => ("Fête de la Révolution", 11)
31 December 1805 => (10, "Nivôse", 14)
</pre>
=={{header|Kotlin}}==
<syntaxhighlight lang="scala">// version 1.1.4-3
import java.time.format.DateTimeFormatter
import java.time.LocalDate
import java.time.temporal.ChronoUnit.DAYS
/* year = 1.. month = 1..13 day = 1..30 */
class FrenchRCDate(val year: Int, val month: Int, val day: Int) {
init {
require (year > 0 && month in 1..13)
if (month < 13) require (day in 1..30)
else {
val leap = isLeapYear(year)
require (day in (if (leap) 1..6 else 1..5))
}
}
override fun toString() =
if (month < 13) "$day ${months[month - 1]} $year"
else "${intercal[day - 1]} $year"
fun toLocalDate(): LocalDate {
var sumDays = 0L
for (i in 1 until year) sumDays += if (isLeapYear(i)) 366 else 365
val dayInYear = (month - 1) * 30 + day - 1
return introductionDate.plusDays(sumDays + dayInYear)
}
companion object {
/* uses the 'continuous method' for years after 1805 */
fun isLeapYear(y: Int): Boolean {
val yy = y + 1
return (yy % 4 == 0) && (yy % 100 != 0 || yy % 400 == 0)
}
fun parse(frcDate: String): FrenchRCDate {
val splits = frcDate.trim().split(' ')
if (splits.size == 3) {
val month = months.indexOf(splits[1]) + 1
require(month in 1..13)
val year = splits[2].toIntOrNull() ?: 0
require(year > 0)
val monthLength = if (month < 13) 30 else if (isLeapYear(year)) 6 else 5
val day = splits[0].toIntOrNull() ?: 0
require(day in 1..monthLength)
return FrenchRCDate(year, month, day)
}
else if (splits.size in 4..5) {
val yearStr = splits[splits.lastIndex]
val year = yearStr.toIntOrNull() ?: 0
require(year > 0)
val scDay = frcDate.trim().dropLast(yearStr.length + 1)
val day = intercal.indexOf(scDay) + 1
val maxDay = if (isLeapYear(year)) 6 else 5
require (day in 1..maxDay)
return FrenchRCDate(year, 13, day)
}
else throw IllegalArgumentException("Invalid French Republican date")
}
/* for convenience we treat 'Sansculottide' as an extra month with 5 or 6 days */
val months = arrayOf(
"Vendémiaire", "Brumaire", "Frimaire", "Nivôse", "Pluviôse", "Ventôse", "Germinal",
"Floréal", "Prairial", "Messidor", "Thermidor", "Fructidor", "Sansculottide"
)
val intercal = arrayOf(
"Fête de la vertu", "Fête du génie", "Fête du travail",
"Fête de l'opinion", "Fête des récompenses", "Fête de la Révolution"
)
val introductionDate = LocalDate.of(1792, 9, 22)
}
}
fun LocalDate.toFrenchRCDate(): FrenchRCDate {
val daysDiff = DAYS.between(FrenchRCDate.introductionDate, this).toInt() + 1
if (daysDiff <= 0) throw IllegalArgumentException("Date can't be before 22 September 1792")
var year = 1
var startDay = 1
while (true) {
val endDay = startDay + if (FrenchRCDate.isLeapYear(year)) 365 else 364
if (daysDiff in startDay..endDay) break
year++
startDay = endDay + 1
}
val remDays = daysDiff - startDay
val month = remDays / 30
val day = remDays - month * 30
return FrenchRCDate(year, month + 1, day + 1)
}
fun main(args: Array<String>) {
val formatter = DateTimeFormatter.ofPattern("d MMMM yyyy")
val dates = arrayOf("22 September 1792", "20 May 1795", "15 July 1799", "23 September 1803",
"31 December 1805", "18 March 1871", "25 August 1944", "19 September 2016",
"22 September 2017", "28 September 2017")
val frcDates = Array<String>(dates.size) { "" }
for ((i, date) in dates.withIndex()) {
val thisDate = LocalDate.parse(date, formatter)
val frcd = thisDate.toFrenchRCDate()
frcDates[i] = frcd.toString()
println("${date.padEnd(25)} => $frcd")
}
// now process the other way around
println()
for (frcDate in frcDates) {
val thisDate = FrenchRCDate.parse(frcDate)
val lds = formatter.format(thisDate.toLocalDate())
println("${frcDate.padEnd(25)} => $lds")
}
}</syntaxhighlight>
{{out}}
<pre>
22 September 1792 => 1 Vendémiaire 1
20 May 1795 => 1 Prairial 3
15 July 1799 => 27 Messidor 7
23 September 1803 => Fête de la Révolution 11
31 December 1805 => 10 Nivôse 14
18 March 1871 => 27 Ventôse 79
25 August 1944 => 7 Fructidor 152
19 September 2016 => Fête du travail 224
22 September 2017 => 1 Vendémiaire 226
28 September 2017 => 7 Vendémiaire 226
1 Vendémiaire 1 => 22 September 1792
1 Prairial 3 => 20 May 1795
27 Messidor 7 => 15 July 1799
Fête de la Révolution 11 => 23 September 1803
10 Nivôse 14 => 31 December 1805
27 Ventôse 79 => 18 March 1871
7 Fructidor 152 => 25 August 1944
Fête du travail 224 => 19 September 2016
1 Vendémiaire 226 => 22 September 2017
7 Vendémiaire 226 => 28 September 2017
</pre>
=={{header|Nim}}==
As was done in Julia version, we have limited the date range to historical dates only.
<syntaxhighlight lang="nim">
import strformat, strscans, strutils, times
const
RcMonths = ["Vendémiaire", "Brumaire", "Frimaire", "Nivôse", "Pluviôse", "Ventôse",
"Germinal", "Floréal", "Prairial", "Messidor", "Thermidor", "Fructidor"]
SansCulottides = ["Fête de la vertu", "Fête du génie", "Fête du travail",
"Fête de l’opinion", "Fête des récompenses", "Fête de la Révolution"]
let
# First and last dates of republican calendar expressed in gregorian calendar.
FirstRcDate = initDateTime(22, mSep, 1792, 0, 0, 0)
LastRcDate = initDateTime(31, mDec, 1805, 0, 0, 0)
type
# French republican date representation.
RcDayRange = 1..30
RcMonthRange = 1..13
RcYearRange = 1..14
RepublicanDate = tuple[year: RcYearRange, month: RcMonthRange, day: RcDayRange]
# Last dates of republican calendar expressed in republican calendar.
const RcLastDate: RepublicanDate = (RcYearRange(14), RcMonthRange(4), RcDayRange(10))
proc notnum(input: string; str: var string; start: int): int =
# Parsing procedure to extract non numerical part of a date.
var i = start
while i <= input.high:
if input[i] in '0'..'9': break
str.add input[i]
inc i
if str.len == 0 or str[^1] != ' ': return -1 # Not terminated by a space.
str.setLen(str.len - 1) # Back before the space.
result = str.len
proc parseRepublicanDate(rdate: string): RepublicanDate =
## Parse a French republican date and return its representation.
let date = rdate.strip()
var day, month, year: int
var monthString, dayString: string
if date.scanf("$i $+ $i", day, monthString, year):
# Normal day.
if day notin 1..30:
raise newException(ValueError, "wrong day number: $1.".format(day))
month = RcMonths.find(monthString) + 1
if month == 0:
raise newException(ValueError, "unknown French republican month: $1." % monthString)
elif date.scanf("${notnum} $i", dayString, year):
# Sans-culottide day (also known as “jour complémentaire”).
month = 13 # Value used for sans-culottide days.
day = SansCulottides.find(dayString) + 1
if day == 0:
raise newException(ValueError, "wrong “sans-culottide” day: « $1 »." % dayString)
if day == 6 and year mod 4 != 3:
raise newException(ValueError, "republican year $1 is not a leap year".format(year))
else:
raise newException(ValueError, "invalid French republican date: « $1 »." % date)
result = (RcYearRange(year), RcMonthRange(month), RcDayRange(day))
if result > RcLastDate:
raise newException(ValueError, "republican date out of range: « $1 »." % date)
proc `$`(date: RepublicanDate): string =
## Return the string representation of a French republican date.
if date.month != 13:
# Normal day.
result = "$1 $2 $3".format(date.day, RcMonths[date.month - 1], date.year)
else:
# Supplementary day.
result = "$1 $2".format(SansCulottides[date.day - 1], date.year)
proc toGregorian(rdate: RepublicanDate): DateTime =
## Convert a republican date tuple to a gregorian date (DateTime object).
let day = (rdate.day - 1) + (rdate.month - 1) * 30 + (rdate.year - 1) * 365 + rdate.year div 4
result = FirstRcDate + initTimeInterval(days = day)
proc toGregorian(rdate: string): string =
## Convert a republican date string to a gregorian date string.
let date = rdate.parseRepublicanDate()
result = date.toGregorian().format("dd MMMM yyyy")
proc toRepublican(gdate: DateTime): RepublicanDate =
## Convert a gregorian date (DateTime object) to a republican date tuple.
if gdate notin FirstRcDate..LastRcDate:
raise newException(ValueError, "impossible conversion to republican date.")
let d = gdate - FirstRcDate
# Add a dummy year before year 1 in order to use a four years period.
let dayNumber = d.inDays + 365
let periodNum = dayNumber div 1461
let dayInPeriod = dayNumber mod 1461
# Compute year and day in year.
let yearInPeriod = min(dayInPeriod div 365, 3)
result.year = periodNum * 4 + yearInPeriod
let dayInYear = dayInPeriod - yearInPeriod * 365
# Compute month and day.
result.month = dayInYear div 30 + 1
result.day = dayInYear mod 30 + 1
proc toRepublican(gdate: string): string =
## Convert a gregorian date string to a republican date string.
let date = gdate.parse("d MMMM yyyy")
result = $(date.toRepublican())
when isMainModule:
const
RepublicanDates = ["1 Vendémiaire 1", "1 Prairial 3", "27 Messidor 7",
"Fête de la Révolution 11", "10 Nivôse 14"]
GregorianDates = ["22 September 1792", "20 May 1795", "15 July 1799",
"23 September 1803", "31 December 1805"]
echo "From French republican dates to gregorian dates:"
for rdate in RepublicanDates:
echo &"{rdate:>24} → {rdate.toGregorian()}"
echo()
echo "From gregorian dates to French republican dates:"
for gdate in GregorianDates:
echo &"{gdate:>24} → {gdate.toRepublican()}"</syntaxhighlight>
{{out}}
<pre>From French republican dates to gregorian dates:
1 Vendémiaire 1 → 22 September 1792
1 Prairial 3 → 20 May 1795
27 Messidor 7 → 15 July 1799
Fête de la Révolution 11 → 23 September 1803
10 Nivôse 14 → 31 December 1805
From gregorian dates to French republican dates:
22 September 1792 → 1 Vendémiaire 1
20 May 1795 → 1 Prairial 3
15 July 1799 → 27 Messidor 7
23 September 1803 → Fête de la Révolution 11
31 December 1805 → 10 Nivôse 14</pre>
=={{header|Perl}}==
<syntaxhighlight lang="perl">use feature 'state';
use DateTime;
my @month_names = qw{
Vendémiaire Brumaire Frimaire Nivôse Pluviôse Ventôse
Germinal Floréal Prairial Messidor Thermidor Fructidor
};
my @intercalary = (
'Fête de la vertu', 'Fête du génie', 'Fête du travail',
"Fête de l'opinion", 'Fête des récompenses', 'Fête de la Révolution',
);
my %month_nums = map { $month_names[$_] => $_+1 } 0 .. $#month_names;
my %i_cal_nums = map { $intercalary[$_] => $_+1 } 0 .. $#intercalary;
my $i_cal_month = 13;
my $epoch = DateTime->new( year => 1792, month => 9, day => 22 );
sub is_republican_leap_year {
my $y = $_[0] + 1;
return !!( ($y % 4)==0 and (($y % 100)!=0 or ($y % 400)==0) );
}
sub Republican_to_Gregorian {
my ($rep_date) = @_;
state $months = join '|', map { quotemeta } @month_names;
state $intercal = join '|', map { quotemeta } @intercalary;
state $re = qr{
\A
\s* (?:
(?<ic> $intercal)
| (?<day> \d+) \s+ (?<month> $months)
)
\s+ (?<year> \d+)
\s*
\z
}msx;
$rep_date =~ /$re/
or die "Republican date not recognized: '$rep_date'";
my $day1 = $+{ic} ? $i_cal_nums{$+{ic}} : $+{day};
my $month1 = $+{month} ? $month_nums{$+{month}} : $i_cal_month;
my $year1 = $+{year};
my $days_since_epoch = ($year1-1) * 365 + ($month1-1) * 30 + ($day1-1);
my $leap_days = grep { is_republican_leap_year($_) } 1 .. $year1-1;
return $epoch->clone->add( days => ($days_since_epoch + $leap_days) );
}
sub Gregorian_to_Republican {
my ($greg_date) = @_;
my $days_since_epoch = $epoch->delta_days($greg_date)->in_units('days');
die if $days_since_epoch < 0;
my ( $year, $days ) = ( 1, $days_since_epoch );
while (1) {
my $year_length = 365 + ( is_republican_leap_year($year) ? 1 : 0 );
last if $days < $year_length;
$days -= $year_length;
$year += 1;
}
my $day0 = $days % 30;
my $month0 = ($days - $day0) / 30;
my ( $day1, $month1 ) = ( $day0 + 1, $month0 + 1 );
return $month1 == $i_cal_month
? "$intercalary[$day0 ] $year"
: "$day1 $month_names[$month0] $year";
}
while (<DATA>) {
s{\s*\#.+\n?\z}{};
/^(\d{4})-(\d{2})-(\d{2})\s+(\S.+?\S)\s*$/ or die;
my $g = DateTime->new( year => $1, month => $2, day => $3 );
my $r = $4;
die if Republican_to_Gregorian($r) != $g
or Gregorian_to_Republican($g) ne $r;
die if Gregorian_to_Republican(Republican_to_Gregorian($r)) ne $r
or Republican_to_Gregorian(Gregorian_to_Republican($g)) != $g;
}
say 'All tests successful.';
__DATA__
1792-09-22 1 Vendémiaire 1
1795-05-20 1 Prairial 3
1799-07-15 27 Messidor 7
1803-09-23 Fête de la Révolution 11
1805-12-31 10 Nivôse 14
1871-03-18 27 Ventôse 79
1944-08-25 7 Fructidor 152
2016-09-19 Fête du travail 224
1871-05-06 16 Floréal 79 # Paris Commune begins
1871-05-23 3 Prairial 79 # Paris Commune ends
1799-11-09 18 Brumaire 8 # Revolution ends by Napoléon coup
1804-12-02 11 Frimaire 13 # Republic ends by Napoléon coronation
1794-10-30 9 Brumaire 3 # École Normale Supérieure established
1794-07-27 9 Thermidor 2 # Robespierre falls
1799-05-27 8 Prairial 7 # Fromental Halévy born
1792-09-22 1 Vendémiaire 1
1793-09-22 1 Vendémiaire 2
1794-09-22 1 Vendémiaire 3
1795-09-23 1 Vendémiaire 4
1796-09-22 1 Vendémiaire 5
1797-09-22 1 Vendémiaire 6
1798-09-22 1 Vendémiaire 7
1799-09-23 1 Vendémiaire 8
1800-09-23 1 Vendémiaire 9
1801-09-23 1 Vendémiaire 10
1802-09-23 1 Vendémiaire 11
1803-09-24 1 Vendémiaire 12
1804-09-23 1 Vendémiaire 13
1805-09-23 1 Vendémiaire 14
1806-09-23 1 Vendémiaire 15
1807-09-24 1 Vendémiaire 16
1808-09-23 1 Vendémiaire 17
1809-09-23 1 Vendémiaire 18
1810-09-23 1 Vendémiaire 19
1811-09-24 1 Vendémiaire 20
2015-09-23 1 Vendémiaire 224
2016-09-22 1 Vendémiaire 225
2017-09-22 1 Vendémiaire 226
</syntaxhighlight>
{{Out}}
<pre>All tests successful.</pre>
=={{header|Phix}}==
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">gregorians</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"January"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"February"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"March"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"April"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"May"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"June"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"July"</span><span style="color: #0000FF;">,</span>
<span style="color: #008000;">"August"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"September"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"October"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"November"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"December"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">gregorian</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">28</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">30</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">30</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">30</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">30</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">31</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">republicans</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Vendémiaire"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Brumaire"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Frimaire"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Nivôse"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Pluviôse"</span><span style="color: #0000FF;">,</span>
<span style="color: #008000;">"Ventôse"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Germinal"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Floréal"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Prairial"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Messidor"</span><span style="color: #0000FF;">,</span>
<span style="color: #008000;">"Thermidor"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fructidor"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">sansculottides</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"Fête de la vertu"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête du génie"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête du travail"</span><span style="color: #0000FF;">,</span>
<span style="color: #008000;">"Fête de l'opinion"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête des récompenses"</span><span style="color: #0000FF;">,</span>
<span style="color: #008000;">"Fête de la Révolution"</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">rep_leap</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">)==</span><span style="color: #000000;">0</span> <span style="color: #008080;">and</span> <span style="color: #0000FF;">(</span><span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">0</span> <span style="color: #008080;">or</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">400</span><span style="color: #0000FF;">)==</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">rep_to_day</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">dmy</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">d</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">m</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">dmy</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">m</span> <span style="color: #0000FF;">==</span> <span style="color: #000000;">13</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">30</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">rep_leap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">365</span><span style="color: #0000FF;">*(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">((</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">4</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">((</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">((</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">400</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">30</span><span style="color: #0000FF;">*(</span><span style="color: #000000;">m</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">d</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">res</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">gre_leap</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">)==</span><span style="color: #000000;">0</span> <span style="color: #008080;">and</span> <span style="color: #0000FF;">(</span><span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">,</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)!=</span><span style="color: #000000;">0</span> <span style="color: #008080;">or</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">year</span><span style="color: #0000FF;">,</span><span style="color: #000000;">400</span><span style="color: #0000FF;">)==</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">gre_to_day</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">dmy</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">d</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">m</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">dmy</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">m</span> <span style="color: #0000FF;"><</span> <span style="color: #000000;">3</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">y</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">12</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">*</span><span style="color: #000000;">365.25</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">400</span><span style="color: #0000FF;">)</span>
<span style="color: #0000FF;">+</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">30.6</span><span style="color: #0000FF;">*(</span><span style="color: #000000;">m</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">))</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">-</span> <span style="color: #000000;">654842</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">res</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">day_to_rep</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">day</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">y</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">((</span><span style="color: #000000;">day</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)/</span><span style="color: #000000;">365.25</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">rep_leap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">y</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">day</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">*</span><span style="color: #000000;">365.25</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">365</span> <span style="color: #0000FF;">+</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">400</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">sansculottide</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">5</span><span style="color: #0000FF;">+</span><span style="color: #000000;">rep_leap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">while</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">></span><span style="color: #000000;">30</span> <span style="color: #008080;">do</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">30</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">m</span> <span style="color: #0000FF;">==</span> <span style="color: #000000;">13</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">></span> <span style="color: #000000;">sansculottide</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">sansculottide</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">y</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">sansculottide</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">5</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">rep_leap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">return</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">d</span><span style="color: #0000FF;">,</span><span style="color: #000000;">m</span><span style="color: #0000FF;">,</span><span style="color: #000000;">y</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">day_to_gre</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">day</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">y</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">day</span><span style="color: #0000FF;">/</span><span style="color: #000000;">365.25</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">day</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">*</span><span style="color: #000000;">365.25</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">21</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">9</span>
<span style="color: #000000;">y</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1792</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">-</span> <span style="color: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">/</span><span style="color: #000000;">400</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">-</span> <span style="color: #000000;">13</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">gregoriam</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">gregorian</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (modifiable copy)</span>
<span style="color: #008080;">while</span> <span style="color: #000000;">d</span><span style="color: #0000FF;">></span><span style="color: #000000;">gregoriam</span><span style="color: #0000FF;">[</span><span style="color: #000000;">m</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">do</span>
<span style="color: #000000;">d</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">gregoriam</span><span style="color: #0000FF;">[</span><span style="color: #000000;">m</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">m</span> <span style="color: #0000FF;">==</span> <span style="color: #000000;">13</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">m</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">y</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">gregoriam</span><span style="color: #0000FF;">[</span><span style="color: #000000;">2</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">28</span> <span style="color: #0000FF;">+</span> <span style="color: #000000;">gre_leap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">y</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">return</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">d</span><span style="color: #0000FF;">,</span><span style="color: #000000;">m</span><span style="color: #0000FF;">,</span><span style="color: #000000;">y</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">greg_to_frep</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">greg</span><span style="color: #0000FF;">)</span>
<span style="color: #0000FF;">{</span><span style="color: #004080;">integer</span> <span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">months</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">scanf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">greg</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%d %s %d"</span><span style="color: #0000FF;">)[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">month</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">months</span><span style="color: #0000FF;">,</span><span style="color: #000000;">gregorians</span><span style="color: #0000FF;">)</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span><span style="color: #000000;">month</span><span style="color: #0000FF;">,</span><span style="color: #000000;">year</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">day_to_rep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">gre_to_day</span><span style="color: #0000FF;">({</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span><span style="color: #000000;">month</span><span style="color: #0000FF;">,</span><span style="color: #000000;">year</span><span style="color: #0000FF;">}))</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">frep</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">month</span><span style="color: #0000FF;">=</span><span style="color: #000000;">13</span><span style="color: #0000FF;">?</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%s %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">sansculottides</span><span style="color: #0000FF;">[</span><span style="color: #000000;">day</span><span style="color: #0000FF;">],</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">})</span>
<span style="color: #0000FF;">:</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d %s %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">republicans</span><span style="color: #0000FF;">[</span><span style="color: #000000;">month</span><span style="color: #0000FF;">],</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">}))</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">frep</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">frep_to_greg</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">frep</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">month</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">year</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">months</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">days</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">frep</span><span style="color: #0000FF;">[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]<=</span><span style="color: #008000;">'9'</span> <span style="color: #008080;">then</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">months</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">scanf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%d %s %d"</span><span style="color: #0000FF;">)[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">month</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">months</span><span style="color: #0000FF;">,</span><span style="color: #000000;">republicans</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">else</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">days</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">scanf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s %d"</span><span style="color: #0000FF;">)[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">day</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">days</span><span style="color: #0000FF;">,</span><span style="color: #000000;">sansculottides</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">month</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">13</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span><span style="color: #000000;">month</span><span style="color: #0000FF;">,</span><span style="color: #000000;">year</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">day_to_gre</span><span style="color: #0000FF;">(</span><span style="color: #000000;">rep_to_day</span><span style="color: #0000FF;">({</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">month</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">}))</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">greg</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%02d %s %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">day</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">gregorians</span><span style="color: #0000FF;">[</span><span style="color: #000000;">month</span><span style="color: #0000FF;">],</span> <span style="color: #000000;">year</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">greg</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">test_data</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1792"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 1"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"20 May 1795"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Prairial 3"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"15 July 1799"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"27 Messidor 7"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1803"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête de la Révolution 11"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"31 December 1805"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"10 Nivôse 14"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"18 March 1871"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"27 Ventôse 79"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"25 August 1944"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"7 Fructidor 152"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"19 September 2016"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête du travail 224"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"06 May 1871"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"16 Floréal 79"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Paris Commune begins</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 May 1871"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"3 Prairial 79"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Paris Commune ends</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"09 November 1799"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"18 Brumaire 8"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Revolution ends by Napoléon coup</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"02 December 1804"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"11 Frimaire 13"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Republic ends by Napoléon coronation</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"30 October 1794"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"9 Brumaire 3"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- École Normale Supérieure established</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"27 July 1794"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"9 Thermidor 2"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Robespierre falls</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"27 May 1799"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"8 Prairial 7"</span> <span style="color: #0000FF;">},</span> <span style="color: #000080;font-style:italic;">-- Fromental Halévy born</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1792"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 1"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1793"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 2"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1794"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 3"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1795"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 4"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1796"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 5"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1797"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 6"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 1798"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 7"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1799"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 8"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1800"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 9"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1801"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 10"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1802"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 11"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"24 September 1803"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 12"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1804"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 13"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1805"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 14"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1806"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 15"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"24 September 1807"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 16"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1808"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 17"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1809"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 18"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 1810"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 19"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"24 September 1811"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 20"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 2015"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 224"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"21 September 2016"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Fête des récompenses 224"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 2016"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 225"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"23 September 2016"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"2 Vendémiaire 225"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"22 September 2017"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"1 Vendémiaire 226"</span> <span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span> <span style="color: #008000;">"28 September 2017"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"7 Vendémiaire 226"</span> <span style="color: #0000FF;">}</span> <span style="color: #0000FF;">}</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">test_data</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">string</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">greg</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">frep</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">test_data</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">],</span>
<span style="color: #000000;">frep2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">greg_to_frep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">greg</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">greg2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">frep_to_greg</span><span style="color: #0000FF;">(</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">ok</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">=</span><span style="color: #000000;">frep2</span> <span style="color: #008080;">and</span> <span style="color: #000000;">greg</span><span style="color: #0000FF;">=</span><span style="color: #000000;">greg2</span><span style="color: #0000FF;">?</span><span style="color: #008000;">"ok"</span><span style="color: #0000FF;">:</span><span style="color: #008000;">"**** ERROR ****"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">platform</span><span style="color: #0000FF;">()=</span><span style="color: #004600;">WINDOWS</span> <span style="color: #008080;">then</span>
<span style="color: #000080;font-style:italic;">-- the windows console does not handle
-- non-basic-latin-ascii characters well...</span>
<span style="color: #000000;">frep</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">substitute_all</span><span style="color: #0000FF;">(</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"éêéô"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"eeeo"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%18s <==> %-25s %s\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">greg</span><span style="color: #0000FF;">,</span><span style="color: #000000;">frep</span><span style="color: #0000FF;">,</span><span style="color: #000000;">ok</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<span style="color: #000080;font-style:italic;">--sanity test:</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">150000</span> <span style="color: #008080;">do</span> <span style="color: #000080;font-style:italic;">-- (years 1792..~2203)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">rep_to_day</span><span style="color: #0000FF;">(</span><span style="color: #000000;">day_to_rep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">i</span><span style="color: #0000FF;">))!=</span><span style="color: #000000;">i</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">gre_to_day</span><span style="color: #0000FF;">(</span><span style="color: #000000;">day_to_gre</span><span style="color: #0000FF;">(</span><span style="color: #000000;">i</span><span style="color: #0000FF;">))!=</span><span style="color: #000000;">i</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
22 September 1792 <==> 1 Vendemiaire 1 ok
20 May 1795 <==> 1 Prairial 3 ok
15 July 1799 <==> 27 Messidor 7 ok
23 September 1803 <==> Fete de la Revolution 11 ok
31 December 1805 <==> 10 Nivose 14 ok
18 March 1871 <==> 27 Ventose 79 ok
25 August 1944 <==> 7 Fructidor 152 ok
19 September 2016 <==> Fete du travail 224 ok
06 May 1871 <==> 16 Floreal 79 ok
23 May 1871 <==> 3 Prairial 79 ok
09 November 1799 <==> 18 Brumaire 8 ok
02 December 1804 <==> 11 Frimaire 13 ok
30 October 1794 <==> 9 Brumaire 3 ok
27 July 1794 <==> 9 Thermidor 2 ok
27 May 1799 <==> 8 Prairial 7 ok
22 September 1792 <==> 1 Vendemiaire 1 ok
22 September 1793 <==> 1 Vendemiaire 2 ok
22 September 1794 <==> 1 Vendemiaire 3 ok
23 September 1795 <==> 1 Vendemiaire 4 ok
22 September 1796 <==> 1 Vendemiaire 5 ok
22 September 1797 <==> 1 Vendemiaire 6 ok
22 September 1798 <==> 1 Vendemiaire 7 ok
23 September 1799 <==> 1 Vendemiaire 8 ok
23 September 1800 <==> 1 Vendemiaire 9 ok
23 September 1801 <==> 1 Vendemiaire 10 ok
23 September 1802 <==> 1 Vendemiaire 11 ok
24 September 1803 <==> 1 Vendemiaire 12 ok
23 September 1804 <==> 1 Vendemiaire 13 ok
23 September 1805 <==> 1 Vendemiaire 14 ok
23 September 1806 <==> 1 Vendemiaire 15 ok
24 September 1807 <==> 1 Vendemiaire 16 ok
23 September 1808 <==> 1 Vendemiaire 17 ok
23 September 1809 <==> 1 Vendemiaire 18 ok
23 September 1810 <==> 1 Vendemiaire 19 ok
24 September 1811 <==> 1 Vendemiaire 20 ok
23 September 2015 <==> 1 Vendemiaire 224 ok
21 September 2016 <==> Fete des recompenses 224 ok
22 September 2016 <==> 1 Vendemiaire 225 ok
23 September 2016 <==> 2 Vendemiaire 225 ok
22 September 2017 <==> 1 Vendemiaire 226 ok
28 September 2017 <==> 7 Vendemiaire 226 ok
</pre>
=={{header|Raku}}==
(formerly Perl 6)
<syntaxhighlight lang="raku" line>use v6;
constant @month_names = <
Vendémiaire Brumaire Frimaire Nivôse Pluviôse Ventôse
Germinal Floréal Prairial Messidor Thermidor Fructidor
>;
constant @intercalary =
'Fête de la vertu', 'Fête du génie', 'Fête du travail',
"Fête de l'opinion", 'Fête des récompenses', 'Fête de la Révolution',
;
constant %month_nums = %( @month_names Z=> 1..12 );
constant %i_cal_nums = %( @intercalary Z=> 1.. 6 );
constant $i_cal_month = 13;
constant $epoch = Date.new: '1792-09-22';
sub is_republican_leap_year ( Int:D $year --> Bool ) {
my $y := $year + 1;
return ?( $y %% 4 and ($y !%% 100 or $y %% 400) );
}
sub Republican_to_Gregorian ( Str:D $rep_date --> Date ) {
grammar Republican_date_text {
token day { \d+ }
token year { \d+ }
token ic { @intercalary }
token month { @month_names }
rule TOP { ^ [ <ic> | <day> <month> ] <year> $ }
}
Republican_date_text.parse($rep_date)
orelse die "Republican date not recognized: '$rep_date'";
my $day1 := $/<ic> ?? %i_cal_nums{~$/<ic>} !! +$/<day>;
my $month1 := $/<month> ?? %month_nums{~$/<month>} !! $i_cal_month;
my @ymd0 := ($/<year>, $month1, $day1) »-» 1;
my $days_since_epoch := [+] @ymd0 Z* (365, 30, 1);
my $leap_days := +grep &is_republican_leap_year, 1 ..^ $/<year>;
return $epoch + $days_since_epoch + $leap_days;
}
sub Gregorian_to_Republican ( Date:D $greg_date --> Str ) {
my $days_since_epoch := $greg_date - $epoch;
die if $days_since_epoch < 0;
my ( $year, $days ) = 1, $days_since_epoch;
loop {
my $year_length = 365 + (1 if $year.&is_republican_leap_year);
last if $days < $year_length;
$days -= $year_length;
$year += 1;
}
my ( $day0, $month0 ) = $days.polymod( 30 );
my ( $day1, $month1 ) = ($day0, $month0) X+ 1;
return $month1 == $i_cal_month
?? "@intercalary[$day0 ] $year"
!! "$day1 @month_names[$month0] $year";
}
my @test_data =
( '1792-09-22', '1 Vendémiaire 1' ),
( '1795-05-20', '1 Prairial 3' ),
( '1799-07-15', '27 Messidor 7' ),
( '1803-09-23', 'Fête de la Révolution 11' ),
( '1805-12-31', '10 Nivôse 14' ),
( '1871-03-18', '27 Ventôse 79' ),
( '1944-08-25', '7 Fructidor 152' ),
( '2016-09-19', 'Fête du travail 224' ),
( '1871-05-06', '16 Floréal 79' ), # Paris Commune begins
( '1871-05-23', '3 Prairial 79' ), # Paris Commune ends
( '1799-11-09', '18 Brumaire 8' ), # Revolution ends by Napoléon coup
( '1804-12-02', '11 Frimaire 13' ), # Republic ends by Napoléon coronation
( '1794-10-30', '9 Brumaire 3' ), # École Normale Supérieure established
( '1794-07-27', '9 Thermidor 2' ), # Robespierre falls
( '1799-05-27', '8 Prairial 7' ), # Fromental Halévy born
( '1792-09-22', '1 Vendémiaire 1' ),
( '1793-09-22', '1 Vendémiaire 2' ),
( '1794-09-22', '1 Vendémiaire 3' ),
( '1795-09-23', '1 Vendémiaire 4' ),
( '1796-09-22', '1 Vendémiaire 5' ),
( '1797-09-22', '1 Vendémiaire 6' ),
( '1798-09-22', '1 Vendémiaire 7' ),
( '1799-09-23', '1 Vendémiaire 8' ),
( '1800-09-23', '1 Vendémiaire 9' ),
( '1801-09-23', '1 Vendémiaire 10' ),
( '1802-09-23', '1 Vendémiaire 11' ),
( '1803-09-24', '1 Vendémiaire 12' ),
( '1804-09-23', '1 Vendémiaire 13' ),
( '1805-09-23', '1 Vendémiaire 14' ),
( '1806-09-23', '1 Vendémiaire 15' ),
( '1807-09-24', '1 Vendémiaire 16' ),
( '1808-09-23', '1 Vendémiaire 17' ),
( '1809-09-23', '1 Vendémiaire 18' ),
( '1810-09-23', '1 Vendémiaire 19' ),
( '1811-09-24', '1 Vendémiaire 20' ),
( '2015-09-23', '1 Vendémiaire 224' ),
( '2016-09-22', '1 Vendémiaire 225' ),
( '2017-09-22', '1 Vendémiaire 226' ),
;
for @test_data -> ( $g_text, $r ) {
my $g = Date.new: $g_text;
die if Republican_to_Gregorian($r) != $g
or Gregorian_to_Republican($g) ne $r;
die if Gregorian_to_Republican(Republican_to_Gregorian($r)) ne $r
or Republican_to_Gregorian(Gregorian_to_Republican($g)) != $g;
}
say 'All tests successful.';</syntaxhighlight>
{{Out}}
<pre>All tests successful.</pre>
=={{header|Sidef}}==
{{trans|Perl}}
<syntaxhighlight lang="ruby">require('DateTime')
var month_names = %w(
Vendémiaire Brumaire Frimaire Nivôse Pluviôse Ventôse
Germinal Floréal Prairial Messidor Thermidor Fructidor
)
var intercalary = [
'Fête de la vertu',
'Fête du génie',
'Fête du travail',
"Fête de l'opinion",
'Fête des récompenses',
'Fête de la Révolution',
]
var i_cal_month = 13
var epoch = %O<DateTime>.new(year => 1792, month => 9, day => 22)
var month_nums = Hash(month_names.kv.map {|p| [p[1], p[0]+1] }.flat...)
var i_cal_nums = Hash(intercalary.kv.map {|p| [p[1], p[0]+1] }.flat...)
func is_republican_leap_year(Number year) -> Bool {
var y = (year + 1)
!!(4.divides(y) && (!100.divides(y) || 400.divides(y)))
}
func Republican_to_Gregorian(String rep_date) -> String {
static months = month_names.map { .escape }.join('|')
static intercal = intercalary.map { .escape }.join('|')
static re = Regex("^
\\s* (?:
(?<ic> #{intercal})
| (?<day> \\d+) \\s+ (?<month> #{months})
)
\\s+ (?<year> \\d+)
\\s*
\\z", 'x')
var m = (rep_date =~ re)
m || die "Republican date not recognized: '#{rep_date}'"
var ncap = m.named_captures
var day1 = Number(ncap{:ic} ? i_cal_nums{ncap{:ic}} : ncap{:day})
var month1 = Number(ncap{:month} ? month_nums{ncap{:month}} : i_cal_month)
var year1 = Number(ncap{:year})
var days_since_epoch = (365*(year1 - 1) + 30*(month1 - 1) + (day1 - 1))
var leap_days = (1 ..^ year1 -> grep { is_republican_leap_year(_) })
epoch.clone.add(days => (days_since_epoch + leap_days)).strftime("%Y-%m-%d")
}
func Gregorian_to_Republican(String greg_date) -> String {
var m = (greg_date =~ /^(\d{4})-(\d{2})-(\d{2})\z/)
m || die "Gregorian date not recognized: '#{greg_date}'"
var g = %O<DateTime>.new(year => m[0], month => m[1], day => m[2])
var days_since_epoch = epoch.delta_days(g).in_units('days')
days_since_epoch < 0 && die "unexpected error"
var (year, days) = (1, days_since_epoch)
loop {
var year_length = (365 + (is_republican_leap_year(year) ? 1 : 0))
days < year_length && break
days -= year_length
year += 1;
}
var day0 = (days % 30)
var month0 = (days - day0)/30
var (day1, month1) = (day0 + 1, month0 + 1)
(month1 == i_cal_month
? "#{intercalary[day0]} #{year}"
: "#{day1} #{month_names[month0]} #{year}")
}
for line in DATA {
line.sub!(/\s*\#.+\R?\z/, '')
var m = (line =~ /^(\d{4})-(\d{2})-(\d{2})\s+(\S.+?\S)\s*$/)
m || die "error for: #{line.dump}"
var g = "#{m[0]}-#{m[1]}-#{m[2]}"
var r = m[3]
var r2g = Republican_to_Gregorian(r)
var g2r = Gregorian_to_Republican(g)
#say "#{r} -> #{r2g}"
#say "#{g} -> #{g2r}"
if ((g2r != r) || (r2g != g)) {
die "1-way error"
}
if ((Gregorian_to_Republican(r2g) != r) ||
(Republican_to_Gregorian(g2r) != g)
) {
die "2-way error"
}
}
say 'All tests successful.'
__DATA__
1792-09-22 1 Vendémiaire 1
1795-05-20 1 Prairial 3
1799-07-15 27 Messidor 7
1803-09-23 Fête de la Révolution 11
1805-12-31 10 Nivôse 14
1871-03-18 27 Ventôse 79
1944-08-25 7 Fructidor 152
2016-09-19 Fête du travail 224
1871-05-06 16 Floréal 79 # Paris Commune begins
1871-05-23 3 Prairial 79 # Paris Commune ends
1799-11-09 18 Brumaire 8 # Revolution ends by Napoléon coup
1804-12-02 11 Frimaire 13 # Republic ends by Napoléon coronation
1794-10-30 9 Brumaire 3 # École Normale Supérieure established
1794-07-27 9 Thermidor 2 # Robespierre falls
1799-05-27 8 Prairial 7 # Fromental Halévy born
1792-09-22 1 Vendémiaire 1
1793-09-22 1 Vendémiaire 2
1794-09-22 1 Vendémiaire 3
1795-09-23 1 Vendémiaire 4
1796-09-22 1 Vendémiaire 5
1797-09-22 1 Vendémiaire 6
1798-09-22 1 Vendémiaire 7
1799-09-23 1 Vendémiaire 8
1800-09-23 1 Vendémiaire 9
1801-09-23 1 Vendémiaire 10
1802-09-23 1 Vendémiaire 11
1803-09-24 1 Vendémiaire 12
1804-09-23 1 Vendémiaire 13
1805-09-23 1 Vendémiaire 14
1806-09-23 1 Vendémiaire 15
1807-09-24 1 Vendémiaire 16
1808-09-23 1 Vendémiaire 17
1809-09-23 1 Vendémiaire 18
1810-09-23 1 Vendémiaire 19
1811-09-24 1 Vendémiaire 20
2015-09-23 1 Vendémiaire 224
2016-09-22 1 Vendémiaire 225
2017-09-22 1 Vendémiaire 226</syntaxhighlight>
{{out}}
<pre>
All tests successful.
</pre>
=={{header|Wren}}==
{{trans|Kotlin}}
{{libheader|Wren-date}}
{{libheader|Wren-seq}}
{{libheader|Wren-fmt}}
<syntaxhighlight lang="wren">import "./date" for Date
import "./seq" for Lst
import "./fmt" for Fmt
class FrenchRCDate {
/* uses the 'continuous method' for years after 1805 */
static isLeapYear(y) {
var yy = y + 1
return (yy % 4 == 0) && (yy % 100 != 0 || yy % 400 == 0)
}
static parse(frcDate) {
var splits = frcDate.trim().split(" ")
if (splits.count == 3) {
var month = Lst.indexOf(months, splits[1]) + 1
if (month < 1 || month > 13) Fiber.abort("Invalid month.")
var year = Num.fromString(splits[2])
if (year < 1) Fiber.abort("Invalid year.")
var monthLength = (month < 13) ? 30 : (isLeapYear(year) ? 6 : 5)
var day = Num.fromString(splits[0])
if (day < 1 || day > monthLength) Fiber.abort("Invalid day.")
return FrenchRCDate.new(year, month, day)
} else if (splits.count == 4 || splits.count == 5) {
var yearStr = splits[-1]
var year = Num.fromString(yearStr)
if (year < 1) Fiber.abort("Invalid year.")
var scDay = frcDate.trim()[0...-(yearStr.count + 1)]
var day = Lst.indexOf(intercal, scDay) + 1
var maxDay = isLeapYear(year) ? 6 : 5
if (day < 1 || day > maxDay) Fiber.abort("Invalid day.")
return FrenchRCDate.new(year, 13, day)
} else Fiber.abort("Invalid French Republican date.")
}
/* for convenience we treat 'Sansculottide' as an extra month with 5 or 6 days */
static months {
return ["Vendémiaire", "Brumaire", "Frimaire", "Nivôse", "Pluviôse", "Ventôse", "Germinal",
"Floréal", "Prairial", "Messidor", "Thermidor", "Fructidor", "Sansculottide"]
}
static intercal {
return ["Fête de la vertu", "Fête du génie", "Fête du travail",
"Fête de l'opinion", "Fête des récompenses", "Fête de la Révolution"]
}
static introductionDate { Date.new(1792, 9, 22) }
/* year = 1.. month = 1..13 day = 1..30 */
construct new(year, month, day) {
if (year <= 0 || month < 1 || month > 13) Fiber.abort("Invalid date.")
if (month < 13) {
if (day < 1 || day > 30) Fiber.abort("Invalid date.")
} else {
var leap = FrenchRCDate.isLeapYear(year)
if (leap && (day < 1 || day > 6)) Fiber.abort("Invalid date.")
if (!leap && (day < 1 || day > 5)) Fiber.abort("Invalid date.")
}
_year = year
_month = month
_day = day
}
static fromLocalDate(ldate) {
var daysDiff = (ldate - introductionDate).days + 1
if (daysDiff <= 0) Fiber.abort("Date can't be before 22 September 1792.")
var year = 1
var startDay = 1
while (true) {
var endDay = startDay + (isLeapYear(year) ? 365 : 364)
if (daysDiff >= startDay && daysDiff <= endDay) break
year = year + 1
startDay = endDay + 1
}
var remDays = daysDiff - startDay
var month = (remDays / 30).floor
var day = remDays - month * 30
return FrenchRCDate.new(year, month + 1, day + 1)
}
toString {
if (_month < 13) return "%(_day) %(FrenchRCDate.months[_month - 1]) %(_year)"
return "%(FrenchRCDate.intercal[_day - 1]) %(_year)"
}
toLocalDate {
var sumDays = 0
for (i in 1..._year) sumDays = sumDays + (FrenchRCDate.isLeapYear(i) ? 366 : 365)
var dayInYear = (_month - 1) * 30 + _day - 1
return FrenchRCDate.introductionDate.addDays(sumDays + dayInYear)
}
}
var fmt = "d| |mmmm| |yyyy"
var dates = [
"22 September 1792", "20 May 1795", "15 July 1799", "23 September 1803",
"31 December 1805", "18 March 1871", "25 August 1944", "19 September 2016",
"22 September 2017", "28 September 2017"
]
var frcDates = List.filled(dates.count, null)
var i = 0
for (date in dates) {
var thisDate = Date.parse(date, fmt)
var frcd = FrenchRCDate.fromLocalDate(thisDate)
frcDates[i] = frcd.toString
Fmt.print("$-25s => $s", date, frcd)
i = i + 1
}
// now process the other way around
System.print()
for (frcDate in frcDates) {
var thisDate = FrenchRCDate.parse(frcDate)
var lds = thisDate.toLocalDate.format(fmt)
Fmt.print("$-25s => $s", frcDate, lds)
}</syntaxhighlight>
{{out}}
<pre>
22 September 1792 => 1 Vendémiaire 1
20 May 1795 => 1 Prairial 3
15 July 1799 => 27 Messidor 7
23 September 1803 => Fête de la Révolution 11
31 December 1805 => 10 Nivôse 14
18 March 1871 => 27 Ventôse 79
25 August 1944 => 7 Fructidor 152
19 September 2016 => Fête du travail 224
22 September 2017 => 1 Vendémiaire 226
28 September 2017 => 7 Vendémiaire 226
1 Vendémiaire 1 => 22 September 1792
1 Prairial 3 => 20 May 1795
27 Messidor 7 => 15 July 1799
Fête de la Révolution 11 => 23 September 1803
10 Nivôse 14 => 31 December 1805
27 Ventôse 79 => 18 March 1871
7 Fructidor 152 => 25 August 1944
Fête du travail 224 => 19 September 2016
1 Vendémiaire 226 => 22 September 2017
7 Vendémiaire 226 => 28 September 2017
</pre>
| |||