X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=advent.adoc;h=d7231f60c3ae6963e55b05ecfcceee0cab7fabf3;hb=HEAD;hp=d40ad4cc67fd5cfbcf9dd5036df9bf15dff3aaf7;hpb=f06e5b8fdbc4a9c6dc534e3e50bce90c83e8e9f8;p=open-adventure.git

diff --git a/advent.adoc b/advent.adoc
index d40ad4c..f132b0c 100644
--- a/advent.adoc
+++ b/advent.adoc
@@ -1,14 +1,16 @@
 = advent(6) =
 :doctype: manpage
+// SPDX-FileCopyrightText: (C) Eric S. Raymond <esr@thyrsus.com>
+// SPDX-License-Identifier: CC-BY-4.0
 
 == NAME ==
 advent - Colossal Cave Adventure
 
 == SYNOPSIS ==
-*advent* [-l logfile] [-o] [-r savefile] [-s]
+*advent* [-l logfile] [-o] [-r savefile] [-a savefile] [script...]
 
 == DESCRIPTION ==
-The original Colossal Cave Adventure from 1976-77 was the origin of all
+The original Colossal Cave Adventure from 1976-1977 was the origin of all
 later text adventures, dungeon-crawl (computer) games, and computer-hosted
 roleplaying games.
 
@@ -18,19 +20,22 @@ adventure".  To learn more about the changes since the 350-point
 original, type 'news' at the command prompt.
 
 There is an 'adventure' in the BSD games package that is a C port by
-Jim Gillogly of the 1976 ancestor of this game.  To avoid a name
-collision, this game builds as 'advent', reflecting the fact that the
-PDP-10 on which the game originally ran limited filenames to 6 characters.
+Jim Gillogly of the 1977 version.  To avoid a name collision, this game
+builds as 'advent', reflecting the fact that the PDP-10 on which the
+game originally ran limited filenames to 6 characters.
 
 This version is released as open source with the permission and
 encouragement of the original authors.
 
-Unlike the original, this version supports use of your arrow keys to edit
-your command line in place.  Basic Emacs keystrokes are supported, and
-your up/down arrows access a command history.
+Unlike the original, this version has a command prompt and supports
+use of your arrow keys to edit your command line in place.  Basic
+Emacs keystrokes are supported, and your up/down arrows access a
+command history.
 
-Otherwise, the "version" command is about the only way to tell you're not
-running Don's original.
+Some minor bugs and message typos have been fixed.  Otherwise, the
+"version" command is almost the only way to tell you're not running
+Don's 1977 version until you get to the new cave sections added for
+2.5.
 
 To exit the game, type Ctrl-D (EOF).
 
@@ -40,17 +45,24 @@ There have been no gameplay changes.
 
 -l:: Log commands to specified file.
 
--r:: Restore game from specified file
+-r:: Restore game from specified save file
 
--o:: Old-style.  Restores original interface, no prompt or line editing.
+-a:: Load from specified save file and autosave to it on exit or signal.
+
+-o:: Old-style.  Reverts some minor cosmetic fixes in game
+     messages. Restores original interface, no prompt or line editing.
      Also ignores new-school one-letter commands l, x, g, z, i. Also
      case-smashes and truncates unrecognized text when echoed.
 
+Normally, game input is taken from standard input.  If script file
+arguments are given, input is taken from them instead.  A script file
+argument of '-' is taken as a directive to read from standard input.
+
 == BUGS ==
 
-The binary save file format is fragile, dependent on your machine word
-size and endianness, and unlikely to survive through version bumps. There
-is a version check.
+The binary save file format is fragile, dependent on your machine's
+endianness, and unlikely to survive through version bumps. There are
+version and endianness checks when attempting to restore from a save.
 
 The input parser was the first attempt *ever* at natural-language
 parsing in a game and has some known deficiencies.  While later text