home *** CD-ROM | disk | FTP | other *** search
- Jim Finnis
- 5 Northgate St.
- Aberystwyth
- Dyfed
- SY23 2JS
- email: white@elf.dircon.co.uk
-
- First, a word of abject apology for those of you who have
- written to me, and had to wait an utterly ridiculous amount of time for
- your disk - I've been moving around a lot since last year, and it's
- taken almost a year for some of the post sent to my old address to
- finally catch up with me. Some of you may have sent me a disk and NEVER
- heard from me.. that's because the forwarding addresses have got
- mangled, lost, etc.. Once again, sorry.
-
-
- The current number of fortunes is almost 4000, mainly thanks to
- Grahame Fendle, who sent me about a hundred quotes of his own, and Mike
- Carlin of MVM Consultants, who sent me six hundred and thirty. Grahame
- later followed up with another two-hundred-ish quotes. Thanks! I think it
- must be a contender for the biggest fortune program in history by now.
-
- Here are some commonly asked questions:
-
-
- 1) How can I add to an existing fortune file?
-
- Phew - this is a tough one, and I'm afraid to say you can't. The
- reason is that the file is in several sections:
-
- Huffman compression table, giving the relative frequencies of all
- the different characters used in the file,
-
- File statistics (such as the total number of fortunes),
-
- A table of pointers to the beginning of each fortune,
-
- Each fortune itself, compressed according to the compression tables
- at the beginning.
-
- I've thought about this a lot, and it's impossible to join two
- compressed files together without decompressing them first, and rehashing
- all the compression data, and building a new, bigger jump table. In other
- words, the program would have to generate the original source files itself.
- And since you have them already, this is a bit pointless. Sorry, but using
- the jump table method makes it infinitely faster.
-
- What I normally do is keep an ASCII file called "newforts", and add
- new fortunes to this as they occur to me. When this is fairly large (about
- 100 fortunes), I add this file onto the end of the main fortune text file,
- and run makefort. That way, I don't run makefort every time I think of a
- fortune. Incidentally, makefort is faster now!
-
-
-
-
- 2) If I put fortune in my startup-sequence, it keeps showing the same
- fortune every time I boot.
-
- Ah, this is because you don't have a RAM expansion with a battery
- backed-up clock! Fortune decides which fortune to show by generating a
- random number. Since computers can't really do random numbers, it needs a
- pseudo-random source to work from. The only available one is the time -
- which on the Amiga is in seconds since midnight on the 1st of January 1970
- (Incidentally, this is when my girlfriend was born, and "Amiga" means
- "girlfriend" in Spanish - spooky, huh?). Of course, on machines which don't
- have a clock, the time is always the same whenever you switch on - it
- starts at 0 Since it usually takes the same time to run a startup-sequence,
- the clock is always the same every time it prints a fortune, so you always
- get the same one! It works fine when you run it any other way, because in
- typing the command, or clicking on it, you have a random delay.
-
- There's no real way around this, except by putting in some piece of
- user interaction to act as the random delay. You can do this by starting up
- fortune with the -i flag, or by putting the line
-
- ask "Press return for a fortune"
-
- in the startup-sequence before the line running the fortune program.
-
- If you do have a battery backed-up clock, and still have this
- problem, make sure that fortune knows what the time is by ensuring that the
- "fortune" line in the startup-sequence is after the "setclock load" line,
- which reads the clock.
-
-
-
-
- 3) Did I type them all in?
-
- No way! The fortune file you have is from various places, where it
- grew over a period of many years. About half of them are from the "original"
- fortune file found on most UNIX mainframes and minicomputers. I extracted them
- from the Tardis Project machine at Edinburgh University, but only got up to
- those beginning with 'N' when the file transfer failed! The rest are either
- from the worldwide Unix News system Usenet's "rec.humor.funny" and
- "alt.humor.oracularities" newsgroups, or from my own personal collection
- of stuff. I hope you enjoy them.
-
-
-
-
- 4) Can I have the source?
-
- I would have liked to supply the source, but there isn't enough room
- on the disk - such is life. Besides, it's not the prettiest of programs -
- like most pet projects, it grew organically. It's even got a "goto" in it.
-
- STOP PRESS: I've changed my mind! The source is now on the disk.
- See fortune.notes to see what's what.
-
-
- Begging Bit
- -----------
-
- This is the full version of the program, with all the
- features below. If you send me a fiver, however, I'll be eternally
- grateful.. Nobody has yet, though...
-
- Stop Press!
-
- The program is updated! It now has icons, which allow you to move
- through the file backwards and forwards, and to jump to a random fortune.
- There's a new flag, FLAGS=TINY, which makes the iconised form of the window
- just big enough to hold these icons. In addition, the program has a built
- in clock, memory monitor and alarm, and uses Nico François'
- reqtools.library (see the docs on how to set this up).
-
-
- Yours,
-
-
-
-
- Jim Finnis
-