Used mostly like a copyright symbol, "(k)" is short for kallisti, or "to the prettiest one" (ancient Greek). This means CDAY is hereby released to the public domain. Portions, however, were not written by me and belong to their respect authors.

If you make any interesting improvements or modifications, send them to me. At least drop me a note: I'd like to see how this thing gets around.

CDAY is provided `as is.' There is no warranty of any kind-- expresed, implied or otherwise. If it breaks, you keep both pieces. Furthermore, the accuracy of this program is not guaranteed. Typos will fault the database, and the algorithms by which the calendars are created will never be completely accurate.

These can also be listed by running CDAY ?. The command line is case insensitive.

  Usage: CDAY [{-|+}c[x]] [-Fdd[mm[yyyy]]] [-i] [{-|+}l[x]]
              [-dir=drive:\\dir\\]
      or CDAY 

Switches:

      c: toggle display of calendars (all on by default)
     cd: toggle Discordian calendar
     cf: toggle French Republican calendar
    cgl: toggle Goddess Lunar calendar
    cgr: toggle Gregorian calendar
    cgu: toggle Great Underground Empire calendar
     ci: toggle Illuminati calendar
    cje: toggle Julian calendar
   cjul: toggle Julian calendar
   cjus: toggle Jusanotoron calendar
    cma: toggle Maya calendar
    cmp: toggle moon phase information
     ct: toggle Thelemic information (disabled by default)
      f: force date in the format dd[mm[yyyy]]
      i: display program information
      l: toggle library support (all on by default)
     lb: toggle birthdays
     le: toggle events
     lr: toggle reminders
    lib: specify library directory

Examples:

ex1: CDAY
Run with all defaults and search current directory for library files.

ex2: CDAY -f09101981
The date October 9th, E.V. 1981 is used.

ex3: CDAY -f0910
The date October 9th of the current year is used.

ex4: CDAY -libdir=c:\apps\cday\
The directory `c:\apps\cday\' is searched for the library files. Notice that the trailing backslash is required!

ex5: CDAY -cjul -cf
The Julian and French Republican calendars are disabled.

ex6: CDAY -c +cd
The calendar displayed is the Discordian. (This neat little trick is possible because the command line is parsed from left to right.)

ex7: CDAY -l
No database libraries are displayed.

If any of these are missing or damaged, see the end of this document for information on how to get a fresh copy of CDAY.

main directory of archive

CDAY.EXE	DOS 16-bit executable
CDAY2.EXE	OS/2 32-bit executable (requires EMXRT)
GO2.CMD	OS/2 batchfile to run CDAY/2
CDAY386.EXE	DOS 32-bit executlabe (requires DPMI server)
GO386.BAT	batchfile to run CDAY/32
CDAY95.EXE	Windows 95 32-bit executable
GO95.BAT	batchfile to run CDAY 95
FILE_ID.DIZ	BBS-compatible description
PSOFT.URL	Windows 95 Shortcut

doc subdirectory of archive

CDAY_DOC.HTM	HTML documentation
CDAY_DOC.TXT	text documentation
README.xxx	important notes for version xxx, changes, etc.
RAWTIME.TXT	R.A.W.'s "How to Live Eleven Days in 24 Hours"

lib subdirectory of archive

CHURCH.ALL	religious happenings
MUSIC.ALL	happenings related to music
CDAY.ALL	my own general additions
TODAY.*	Patrick Kincaid's original TODAY.??? files

CDAY's output can be redirected (piped) to a file or a device. Below are several examples of how this done. You may wish to see your system manuals for more information.

Note: error messages are not piped but instead always sent to the console.

CDAY > COM1
Sends the output to the first communications port.

CDAY > PRN
Data is sent to the default printer.

CDAY > NUL
This is useless considering CDAY's function, but the data is sent to the null device (i.e., oblivion).

CDAY > c:\bbs\texts\today.asc
The file c:\bbs\texts\today.asc is overwritten, if it exists. If it doesn't, it is created.

CDAY >> c:\bbs\logs\today.log
The file c:\bbs\logs\today.log is appended with CDAY's output. If it doesn't exist, it is created.

The CDAY386.EXE requires DPMI (DOS Protected Mode Interface) to access extended memory. You must either install a DPMI host or use another version.

Available hosts include Windows v3.1, '95 and '98 (in a box running DOS); OS/2 (in the DOS box a.k.a. VDM); QEMM; and CWSDPMI. CWSDPMI is available for free and works very well.

CDAY2.EXE requires the EMX runtime library to access certain functions. You must install the emxrt or use another version.

Title: Calendrical Calculations
Author: Nachum Dershowitz and Edward M. Reingold

Contains code for many calendrical systems. All calculations are very accurate. Book and web-site supply Lisp code for all operations.

Look for the latest updates directly from the CDAY website.

File Naming Conventions

xxx signifies the version release. For example, the DOS package for v1.15 would be CDAY115D.ZIP.

includes	archive name
DOS, OS/2 and Windows executables; source code; extra files	CDAYxxx.ZIP
DOS executables (16-bit and 32-bit); extra files	CDAYxxxD.ZIP
OS/2 executables; extra files	CDAYxxxO.ZIP
source code; extra files	CDAYxxxS.ZIP
Windows 32 executables; extra files	CDAYxxxW.ZIP

Public domain code from

• Bob Stout and Mark Kamradt: COMMAFMT.C;
• Bob Stout: DAYNUM.C;
• Scott E. Lee: FRENCH.C and JULIAN.C calendars;
• Paul Schlyter, Raymond Gardner and Tom Van Flandern: JDN_L.C;
• Jim Walsh, Dann Corbit, Bob Stout, and others: L2ROMAN.C;
• Peter Meyer: LUNCONV.C;
• M. Kimes, Lynn Nash, BSD Unix;
• Robert B.Stout: ORD_TEXT.C;
• and Ray Gardner: SCALDATE.C.