Thu Nov 5 14:48:54 MET 1998 * v2.8(3) Tue Nov 3 12:14:33 MET 1998 * Fixed negative arithmetic in the interpreter. Thanks Stephen for the bug report. Mon Aug 31 13:32:32 1998 Thomas Nilsson * Allowed aposthrophe as a part of input words allowing "take robin's cape". Thanks to Elden Buerkle" for this suggestion. Mon Aug 24 10:54:04 1998 Thomas Nilsson * Removed the "save-bug" on DOS caused by not opening in binary mode. Fri Aug 21 15:49:17 MET DST 1998 * v2.8(1) Wed Aug 12 17:29:00 1998 Thomas Nilsson * Added a 'charset' command line option. You can now use source files directly in ISO, MAC or DOS character sets and the compiler still produces correct output. Handy when using national characters primarily in Win/Dos environments, you can now edit the source using a Win-based editor and compile in a DOS shell. Tue Aug 11 11:20:23 1998 Thomas Nilsson * Refixed the command line editing on Solaris2 Mon Aug 10 11:55:08 MET DST 1998 * v2.8 Tue Aug 10 20:35:26 MET DST 1998 * Fixed another problem with named scripts occuring because they where not always numbered before analysis. Tue Apr 28 17:56:58 1998 Thomas Nilsson * Fixed a problem with the semantic check of parameters. When there where no restriction clause sometimes LIST statements and other container-requiring statements could slip through, which could cause a run-time (interpreter caught) error. Mon Apr 6 14:41:06 1998 Thomas Nilsson * Made RANDOM accept integer primary expressions as parameters, not only literals. Wed Mar 18 10:26:47 1998 Thomas Nilsson * Made SCHEDULE accept integer expressions, not only literals. Thu Nov 27 13:39:04 1997 Thomas Nilsson * Removed a bug in the attribute generation code which gave wrong indices to attributes for e.g. an object which had redefinition of default attributes in the middle of its attribute list. Thanks to Jürgen Lerch (lerchj@rz.uni-duesseldorf.de) for reporting this. Tue Oct 21 18:42:02 1997 Thomas Nilsson * Changed the interpreter to only look at its own name only if no parameter was given. * Added container functions in the debugger. Tue Sep 23 09:31:45 1997 Thomas Nilsson * Introduced the DEPENDING statement. Wed Sep 17 09:00:46 1997 Thomas Nilsson * Made the hero a container actor. You can now use both the previous pre-defined "inventory" container and the hero as your inventory, they are the same. Wed Sep 13 12:40:54 1997 Thomas Nilsson * Improved the analysis of multiple syntaxes for the same verb so that it prints one message per occurance of the offending syntaxes. Wed Sep 10 18:10:23 1997 Thomas Nilsson * Removed a bug in the generation of syntax declarations: sometimes when a short syntax was found between longer ones with the same start (prefix) the compiler would loop and allocate memory until memory was exhausted. Wed Aug 27 12:12:05 1997 Thomas Nilsson * Added the CONTAINS substring check expression Thu Aug 14 15:35:24 1997 Thomas Nilsson * Added the BETWEEN expression Tue Jul 29 20:01:53 MET DST 1997 * v2.7(5) Mon Jul 28 10:45:33 MET DST 1997 * v2.7(4) Fri Jul 25 16:51:20 1997 Thomas Nilsson * Changed grammar slightly so that the clauses within locations, objects and actors can be given in any order. This change makes game source not completely backwards compatible as a game compiling fine with 2.7(4) and above will not always compile with 2.7(3) and below (depending on if you use the free order or not). Thu Jul 24 13:36:24 1997 Thomas Nilsson * Fixed some problems with the same word as noun, adjective and verbs. It is now possible to say "plant the pot plant in the plant pot". * Changed some dump format in the compiler Sat May 31 15:29:24 MET DST 1997 * v2.7(3) Sat May 31 14:25:03 1997 Thomas Nilsson * Fixed the bug with named script not executing Sat Mar 29 12:31:24 1997 Thomas Nilsson * V2.7 finished and tested! Thu Dec 12 14:53:12 1996 Thomas Nilsson * Removed the directory part of the name of the log file created when using the -l switch to the interpreter, meaning that log files are always created in the user directory. Thu Aug 29 19:34:09 1996 Thomas Nilsson * LANGUAGE IMPROVEMENT: Added the more Alan-ish way to specify scripts, namely by name (old style, by numbers, are still supported, and mixing is allowed). Wed Aug 28 09:00:58 1996 Thomas Nilsson * LANGUAGE IMPROVEMENT: Made the MESSAGE construct accept general statements. Unfortunately this also required the removal of the positive response checking in confirmation messages. Note that *any* input is now considered a negative response (YES, I will look into changing this...) * SYSTEM CHANGE: Changed the QUIT statement to ask for RESTART, RESTORE or QUIT (like old time InfoCom games). The message QUIT can be used to change the contents of the question, but note that the RESTART, RESTORE and QUIT words are hardwired into the interpreter. The new QUIT function may cause some problems with earlier games (and gamers) because the player will probably answer the wrong thing when doing a quit (but let's hope if-players can read ;-) * LANGUAGE IMPROVEMENT: Added a new statement RESTART to restart the current game. It causes a prompt for confirmation (the new REALLY message, which can be changed using the MESSAGE construct, like all the standard messages). * DOCUMENTATION: Changed format of the grammar description, now using the more clear (?) format for non-terminals. * SIGNIFICANT LANGUAGE IMPROVEMENT: Reference to objects/actors not at the current location allowed! Another special indicator for parameters in the syntax construct has been added. In the same way as it has been possible to indicate that a parameter can be multiple, it is now possible to indicate that the parameter need *not* be present to be considered. Disambiguation between multiple objects that matches the words given by the player is performed as before (with presence taking precedence). This allows much simpler handling of e.g. ASK JOE ABOUT BILL, because we need no longer use tricks to make BILL present. Fri Jul 26 13:48:24 1996 Thomas Nilsson * SIGNIFICANT LANGUAGE IMPROVEMENT: Added general default attribute available for all Actors, Objects and Locations: DEFAULT ATTRIBUTES. Allows for example verbs like 'examine' to act on both actors and objects in a much better way. Thu May 23 23:42:05 1996 Thomas Nilsson * LANGUAGE IMPROVEMENT: Allowed arbitrary order between declaration of initial location and names on actors and objects * SIGNIFICANT LANGUAGE IMPROVEMENT: Allowed multiple player names on actors and objects. Tue May 21 13:39:39 1996 Thomas Nilsson * LANGUAGE IMPROVEMENT: Allowed the previously completely reserved words ARTICLE, MESSAGE, QUIT, SAVE and RESTORE to be used as identifiers Fri Apr 12 11:05:41 1996 Thomas Nilsson * BUGFIX: Finally allowed "no" prefix for boolean options, as in "No Debug", note that the 2.6 version of the manual is wrong * BUGFIX: Fixed the unexisting FPU and article problems in the DOS port Wed Apr 3 00:54:24 1996 Thomas Nilsson * INTERPRETER IMPROVEMENT: Added the ',' as an alternate conjunction in player input Thu Mar 7 14:21:22 1996 Thomas Nilsson * 2.6! Thu Feb 29 16:48:06 1996 Thomas Nilsson * Added an "-include" switch which allows multiple directories to be searched for included files Wed Feb 28 17:32:04 1996 Thomas Nilsson * Fixed a small problem with reversing of game files on big-endian machines, the object article code was not reversed usually causing an "executing outside memory" error Fri Jan 26 13:56:04 1996 Thomas Nilsson * Fixed problem with conversion of 2.5 games, when the same exit had multiple directions Mon Nov 13 16:24:09 1995 Thomas Nilsson * Added auto convert code for 2.5 games, the interpreter should now automagically convert games compiled with 2.5 and run them Fri Nov 10 15:53:37 1995 Thomas Nilsson * Introduced user definable messages. This caused introduction of a new reserved word: MESSAGE, which may cause some incompatibilities Tue Sep 26 21:05:10 1995 Thomas Nilsson * Removed the undefinite article from the default messages. Instead introduced the ARTICLE slot in objects which will be used (if present) before producing the MENTIONED message (which may be constructed automatically). If no article is declared a default is supplied ("a" if using english). This means that some tricks that have been used to somewhat remedy the article problem ('a' was always used!), don't work any more. Remove all 'a', 'an' etc. from the texts and names in the Alan source (usually in the MENTIONED slot and possibly in the HEADER for containers), and introduce the ARTICLE declaration on objects that require it (those whos name start with a vowel sound). For objects that doesn't need an article define an empty ARTICLE clause. It also means that their is now a new reserved word ARTICLE. It is also now possible to define the ARTICLE, MENTIONED and DESCRIPTION on objects in any order. Wed Sep 6 10:40:13 1995 Thomas Nilsson * 2.5(3) * Removed bulky GNU readline and added own readline implementation to suns&hp's Fri Dec 16 17:42:48 1994 Thomas Nilsson * 2.5(2)! Sun Sep 11 19:32:48 1994 Thomas Nilsson (thoni@rabbit) * New (prettier?) icons on the Amiga * Added WINDOW-tooltype for arun on the Amiga * Added GNU-readline command line editing support on suns/hps Wed Sep 7 15:53:16 1994 Thomas Nilsson (thoni@rabbit) * Scores were not cleared at restart Fri May 13 10:36:25 1994 Thomas Nilsson (thoni@rabbit) * Corrected a bug in handling of rules * Improved handling of unbalanced quotes * References to default attributes did not work in some circumstances Mon Jan 10 13:58:40 1994 Thomas Nilsson (thoni@rabbit) * Fixed bug in compiler concerning check for comparisons of equal entities Fri Jan 7 12:01:44 1994 Thomas Nilsson (thoni@rabbit) * Added '-cc' to show compiler messages in old 'cc' style Thu Dec 30 16:31:15 1993 Thomas Nilsson (thoni@rabbit) * 2.5(1) * Fixed restart bug in interpreter Wed Dec 8 16:15:01 1993 Thomas Nilsson (thoni@rabbit) * 2.5! * Allowed multiple default attribute declarations. * Allowed string quotes within strings and single quotes within quoted ids (double them). * Renaming the interpreter makes it look for code and data files with the same basename. * A reversed file is loaded and reversed so .ACD files are now compatible across all platforms. * Character sets are converted automatically so national characters are also compatible across all platforms (as much as possible!). * Added Restart question to the QUIT statement. * Allowed save to multiple files.