May 1999
- Object server. Quzah [softhome]
- Censorship & Its Impact On World Immersion J C Lawrence
- OT: Ethics v Law Greg Munt
- Virtual v Artificial Worlds Greg Munt
- Virtual v Artificial Worlds Matthew Mihaly
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? Wes Connell
- Custom Server Roll Call? David Bennett
- Custom Server Roll Call? Koster, Raph
- Custom Server Roll Call? Greg Munt
- Custom Server Roll Call? The Arrow
- Custom Server Roll Call? Alex Stewart
- Custom Server Roll Call? Nathan F Yospe
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Matthew Mihaly
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Chris Gray
- Custom Server Roll Call? Marc Hernandez
- Custom Server Roll Call? Greg Munt
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Matthew Mihaly
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? J C Lawrence
- Custom Server Roll Call? Ling
- Custom Server Roll Call? Jon A. Lambert
- Custom Server Roll Call? Emil Eifrem
- Custom Server Roll Call? Niklas Elmqvist
- Custom Server Roll Call? Chris Gray
- Custom Server Roll Call? Emil Eifrem
- Custom Server Roll Call? Chris Gray
- Custom Server Roll Call? Emil Eifrem
- Custom Server Roll Call? Chris Gray
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? J C Lawrence
- Custom Server Roll Call? Emil Eifrem
- Custom Server Roll Call? Marc Hernandez
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Jo Dillon
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Marc Hernandez
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Marc Hernandez
- Custom Server Roll Call? Adam Wiggins
- Custom Server Roll Call? Matthew Mihaly
- Custom Server Roll Call? Hans-Henrik Staerfeldt
- Custom Server Roll Call? Ola Fosheim Grøstad
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? claw@kanga.nu
- Custom Server Roll Call? Emil Eifrem
- Custom Server Roll Call? Chris Turner
- Custom Server Roll Call? Ling
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? Jay Carlson
- Custom Server Roll Call? Caliban Tiresias Darklock
- Custom Server Roll Call? Ling
- Interesting dilemma Peck, Matthew x96724c1
- Interesting dilemma Caliban Tiresias Darklock
- Interesting dilemma Quzah [softhome]
- Interesting dilemma Brandon A Downey
- Interesting dilemma Shawn Halpenny
- Interesting dilemma Matthew Mihaly
- Interesting dilemma Benjamin D. Wiechel
- Interesting dilemma Koster, Raph
- Interesting dilemma Wes Connell
- Interesting dilemma Mattias Lönnqvist
- Interesting dilemma Mik Clarke
- Interesting dilemma Joel Kelso
- Interesting dilemma Ronan Farrell
- Harvey's Rules of Immship John Hopson
- Confiscating items (Interesting dilemma) Ola Fosheim Grøstad
- AW: Interesting dilemma Hofbauer Heinz
- Virtual Property J C Lawrence
- Virtual Property Koster, Raph
- Virtual Property Jon A. Lambert
- Autogenerating maps from muds using cardinal directions for exits? Ben Greear
- Discussion of large server IO handling desing J C Lawrence
- Planes of existance Quzah [softhome]
- Planes of existance Greg Munt
- Planes of existance Quzah [softhome]
- Planes of existance Caliban Tiresias Darklock
- Planes of existance Ben Greear
- Planes of existance Caliban Tiresias Darklock
- Planes of existance Greg Munt
- Planes of existance T. Alexander Popiel
- Planes of existance Ola Fosheim Grøstad
- Planes of existance Matthew Mihaly
- Dynamically changing room descriptions Ronan Farrell
- Dynamically changing room descriptions Mik Clarke
- Dynamically changing room descriptions Ben Greear
- Dynamically changing room descriptions Koster, Raph
- Dynamically changing room descriptions Richard Bartle
- Dynamically changing room descriptions Matthew Mihaly
- Dynamically changing room descriptions Travis Casey
- Dynamically changing room descriptions Travis Casey
- Dynamically changing room descriptions Ola Fosheim Grøstad
- Dynamically changing room descriptions Jon A. Lambert
- Dynamically changing room descriptions Ola Fosheim Grøstad
- Dynamically changing room descriptions Eli Stevens {KiZurich/GreySylk}
- Dynamically changing room descriptions Jon A. Lambert
- Dynamically changing room descriptions Ling
- Dynamically changing room descriptions Christopher Allen
- old fight system I toyed with Koster, Raph
- APE 0.2.1 J C Lawrence
- OT: robots, agents and emotions Ola Fosheim Grøstad
- OT: robots, agents and emotions Ola Fosheim Grøstad
- Time Discontinuous MUD Ling
- Semi-OT: International intellectual property right (was: Custom Server Roll Call?) Custom Server Roll Call?) Ola Fosheim Grøstad
- Semi-OT: International intellectual property rights Ola Fosheim Grøstad
- Marc Hernandez' Server Greg Munt
- Marc Hernandez' Server Jay Carlson
- Marc Hernandez' Server Caliban Tiresias Darklock
- Marc Hernandez' Server Travis S. Casey
- Marc Hernandez' Server Adam Wiggins
- Marc Hernandez' Server Marc Hernandez
- Marc Hernandez' Server qitelremel@hotmail.com
- Scry 1.9.1 (Feature Freeze) released. Ben Greear
- The distinction between magic spells and magic abilities Greg Munt
- The distinction between magic spells and magic abilities Matthew Mihaly
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Caliban Tiresias Darklock
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Jo Dillon
- Multi-threaded mud server. Travis S. Casey
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Chris Gray
- Multi-threaded mud server. Chris Gray
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Mik Clarke
- Multi-threaded mud server. Chris Gray
- Multi-threaded mud server. Mik Clarke
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Caliban Tiresias Darklock
- Multi-threaded mud server. Mark Gritter
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Travis S. Casey
- Multi-threaded mud server. Ola Fosheim Grøstad
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Ola Fosheim Grøstad
- Multi-threaded mud server. David Bennett
- Multi-threaded mud server. Ross Nicoll
- Multi-threaded mud server. Jon A. Lambert
- Multi-threaded mud server. Travis Casey
- Macro languages Caliban Tiresias Darklock
- LOTR and Mud [was: Marc Hernandez' Server] Marc Hernandez
- Noise: boys will be boys (was Multi-threaded mud server.) Ola Fosheim Grøstad
- Kanga.Nu has finally moved... claw@kanga.nu
- Java & MUD servers Laurent Bossavit
- ScryMUD 1.9.3 released. Ben Greear
- ScryMUD 1.9.3 released. Chris Gray
- ScryMUD 1.9.3 released. Ben Greear
- ScryMUD 1.9.3 released. Jon A. Lambert
- [TECHNICAL] How to generate pre-processor output (template problem). Ben Greear
- Searching the archives claw@kanga.nu
- Text Parsing Albert
- Text Parsing Greg Miller
- Text Parsing Kylotan
- Text Parsing Chris Gray
- Text Parsing Albert
- Text Parsing Mik Clarke
- Text Parsing Cynbe ru Taren
- Text Parsing Chris Gray
- Text Parsing Ola Fosheim Grøstad
- Text Parsing Nathan F Yospe
- Text Parsing Ola Fosheim Grøstad
- Text Parsing Mik Clarke
- Text Parsing Marc Hernandez
- Text Parsing Kylotan
- Text Parsing Ross Nicoll
- Text Parsing Kylotan
- Text Parsing Travis Casey
- Text Parsing Chris Gray
- Text Parsing Ross Nicoll
- Text Parsing Travis Casey
- Text Parsing Albert
- Text Parsing Travis Casey
- Text Parsing Mik Clarke
- Text Parsing Ross Nicoll
On Tue, 1 Jun 1999, Kylotan wrote:
> > Wouldn't take much memory, but coding time would be very, very long
> > compared to a simple parser, and it would have a much higher CPU usage
> > too (although that may not make so much of a difference).
> Well, I would have thought that something that used to execute within half
> a second on a Z80 CPU would not be a problem, performance-wise.
Really depends on if you're using an interpreted/byte compiled internal
language...
> But then, if I fully understood what was going on here, I wouldn't need
> to be asking :) I expect, however, that the code in modern
> interactive-fiction engines such as Inform or Tads has a lot more code
> than is needed for a parser of the complexity I am talking about.
Don't think either is really that much ahead actually. Hangon, I'll dig up
some code...
Verb 'take' 'carry' 'hold'
* multi -> Take
* 'off' worn -> Disrobe
* multiinside 'from' noun -> Remove
* multiinside 'off' noun -> Remove
* 'inventory' -> Inv;
That was a definition for one of the basic functions (suprise suprise).
Basically it defines, for these arguments, use this function. The
difficult bit is working out what arguments are which. Each function can
have globally defined functions that are called before and/or after it is
called, aswell as similar functions of each object.
Hmmm. Okay, I find it easiest to code from examples:
> take the big red chair
I'm pretty sure my MUD could handle that perfectly well. Each object has
it's name (chair, in this case), aliases (chair could also be seat), and
adjectives (big, red and wooden would work here). If you want a copy of
the function that identifies objects, tell me. It's pretty hideous
though...
Another example:
> take cookie then eat cookie
My MUD would fall over at this. It was never hold how to deal with "then".
Simplest method seems to be to split commands up around "then".
> say what happened then
[pauses to shuffle his HDs partitions around]
Would cause problems with that though, as it would create two commands,
"say when happened" and "", so some way of indicating that arguments
should be passed straight onto the function, instead of being parsed,
should probably be included.
At this stage, the program can try sorting through the arguments. So, the
order so far is:
1. Take in a command.
2. Find the function that matches the first word of the command.
3. If the function specifies that arguments should not be parsed, pass the
arguments straight into the function.
4. Otherwise split up the command into several commands, and parse each
individually.
Back to the "take" command, as used in Inform. Let's look at the most
simple usage:
> take cup
Anything can parse that. What about a list:
> take cup and saucer
No problem, just split around "and", and call the function for each in
turn. But if we want want three objects, do we write:
> take cup and saucer and spoon
or
> take cup, saucer and spoon
in which case, we have to make sure that the program doesn't start trying
to find "cup," in the room.
Second syntax "take off <object>". Here it gets really fun:
> take off coat
seems simple enough. Thing is, do you first check for an object that can
be described as an "off coat", or first check through the list of possible
arguments to "take" for a match? The first options starts adding reserved
words ("off button" anyone?), the second one has problems with other
syntaxes:
> take small box from wooden table
A search for this syntax would probably be best implemented as a search
for "from", and then a check that the syntax is okay, if a "from" is
found. There is also:
> take gold ring from the small box from wooden table
but quite frankly, anyone typing that in deserves everything they get.
So for parsing the command, after it is split up appropriately, the
sequence that works best is probably:
1. Go through all possible syntaxes of command, checking for a match.
2. Go with first syntax match, or print error message if there are none.
3. Parse lists of objects, splitting around commas and "and"s.
4. Pass the resulting mess to the function.
Although 4 might be a lot simpler if the function was just called once for
each item in a list.
I'd actually really appreciate comments on other possible
problems/solutions with this, because it's looking writable, so I might
just try implementing it all in my latest driver.
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______________/ - Text Parsing Chris Gray
- Text Parsing Katrina McClelan
- Text Parsing Travis S. Casey
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Chris Gray
- Text Parsing Matthew Mihaly
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Travis S. Casey
- Text Parsing Matthew Mihaly
- Text Parsing Travis S. Casey
- Text Parsing Matthew Mihaly
- Text Parsing Travis Casey
- Text Parsing Greg Miller
- Text Parsing Albert
- Text Parsing Chris Gray
- Text Parsing Greg Miller
- Text Parsing Ola Fosheim Grøstad
- Text Parsing Travis Casey
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Chris Gray
- Text Parsing Travis S. Casey
- Text Parsing Chris Gray
- Text Parsing Travis S. Casey
- Text Parsing Ben Greear
- Text Parsing Matthew Mihaly
- Text Parsing Travis S. Casey
- Text Parsing Greg Miller
- Text Parsing David Bennett
- Text Parsing Travis Casey
- Text Parsing Cynbe ru Taren
- Text Parsing Katrina McClelan
- Text Parsing Travis S. Casey
- Text Parsing Greg Miller
- Text Parsing Chris Gray
- Text Parsing Martin C Sweitzer
- Text Parsing Jp Calderone
- Text Parsing Chris Gray
- Text Parsing Ben Greear
- Text Parsing Travis S. Casey
- Text Parsing Greg Miller
- Text Parsing Greg Miller
- Text Parsing Chris Gray
- Text Parsing Matthew Mihaly
- Text Parsing Ben Greear
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Adam Wiggins
- Text Parsing Chris Gray
- Text Parsing Kylotan
- Text Parsing Koster, Raph
- Text Parsing Ben Greear
- Text Parsing Jon A. Lambert
- Text Parsing Adam Wiggins
- Text Parsing Chris Gray
- Text Parsing Matthew Mihaly
- Text Parsing Koster, Raph
- Text Parsing Hans-Henrik Staerfeldt
- Text Parsing Koster, Raph
- Text Parsing Travis S. Casey
- Text Parsing Greg Miller
- Text Parsing David Bennett
- Text Parsing Ross Nicoll
- Text Parsing Travis S. Casey
- Text Parsing Ross Nicoll
- Text Parsing Albert
- Text Parsing Travis S. Casey
- Text Parsing Matthew Mihaly
- Text Parsing Greg Miller
- Text Parsing Matthew Mihaly
- Text Parsing Greg Miller
- Text Parsing Matthew Mihaly
- Text Parsing Chris Gray
- Text Parsing Matthew Mihaly
- Text Parsing Adam Wiggins
- Text Parsing Katrina McClelan
- Text Parsing Adam Wiggins
- Text Parsing Matthew Mihaly
- Text Parsing Adam Wiggins
- Text Parsing Katrina McClelan
- Text Parsing Jon A. Lambert
- Text Parsing J C Lawrence
- Text Parsing J C Lawrence
- Text Parsing Joey Hess
- Text Parsing J C Lawrence
- Text Parsing Matthew Mihaly
- Text Parsing J C Lawrence
- Text Parsing Koster, Raph
- Text Parsing Matthew Mihaly
- Text Parsing Koster, Raph
- Text Parsing Chris Gray
- Text Parsing Albert
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Matthew Mihaly
- Text Parsing Greg Miller
- Text Parsing J C Lawrence
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Jon A. Lambert
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Hans-Henrik Staerfeldt
- Text Parsing claw@kanga.nu
- Text Parsing Caliban Tiresias Darklock
- Text Parsing Greg Miller
- Text Parsing Petri Virkkula
- Text Parsing Matthew Mihaly
- Text Parsing Petri Virkkula
- Text Parsing Adam Wiggins
- Text Parsing Katrina McClelan
- Text Parsing Petri Virkkula
- Dylan Programming Language Ling
- Dylan Programming Language Jon A. Lambert
- Ultimate Universe Documentation Caliban Tiresias Darklock
- Oh yeah... Caliban Tiresias Darklock
- [TECHNICAL] [SOLVED] (template problem). Ben Greear
- [RELEASE] ScryMUD 1.9.4 available for download. Ben Greear