adopt some orphan commands

'? i' shows three keyless commands in the General section.  This
makes M-X the key for #exploremode.  #herecmdmenu and #therecmdmenu
are still keyless but now autocomplete.

A ridiculous amount of documentation for a three line code change.

dat/cmdhelp

@@ -223,3 +223,4 @@ M-T	Tip: empty a container
 M-u	Untrap something (trap, door, or chest)
 M-v	Print compile time options for this version of NetHack
 M-w	Wipe off your face
+M-X	Switch from normal play to explore mode

doc/Guidebook.mn

@@ -1,4 +1,4 @@
-.\" $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.407 $ $NHDT-Date: 1607936398 2020/12/14 08:59:58 $
+.\" $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.408 $ $NHDT-Date: 1608175317 2020/12/17 03:21:57 $
 .\"
 .\" This is an excerpt from the 'roff' man page from the 'groff' package.
 .\" Guidebook.mn currently does *not* fully adhere to these guidelines.
@@ -35,7 +35,7 @@
 .ds vr "NetHack 3.7
 .ds f0 "\*(vr
 .ds f1
-.ds f2 "December 13, 2020
+.ds f2 "December 16, 2020
 .
 .\" A note on some special characters:
 .\" \(lq = left double quote
@@ -969,9 +969,9 @@ the exchange still takes place.
 Toggle two-weapon combat, if your character can do it.  Also available
 via the \(lq#twoweapon\(rq extended command.
 .lp ""
-(In versions prior to 3.6 this was the command to switch from normal
+(In versions prior to 3.6 this keystroke ran the command to switch from normal
 play to \(lqexplore mode\(rq, also known as \(lqdiscovery mode\(rq,
-which has now been moved to \(lq#exploremode\(rq.)
+which has now been moved to \(lq#exploremode\(rq and M-X.)
 .lp \(haX
 Display basic information about your character.
 .lp ""
@@ -1199,7 +1199,8 @@ Advance or check weapon and spell skills.
 Autocompletes.
 Default key is \(oqM-e\(cq.
 .lp #exploremode
-Enter the explore mode.
+Switch from normal play to non-scoring explore mode.
+Default key is \(oqM-X\(cq.
 .lp ""
 Requires confirmation; default response is \f(CRn\fP (no).
 To really switch to explore mode, respond with \f(CRy\fP.
@@ -1222,7 +1223,15 @@ Default key is \(oq?\(cq, and also \(oqh\(cq if
 .op number_pad
 is on.
 .lp #herecmdmenu
-Show a menu of possible actions in your current location.
+Show a menu of possible actions directed at your current location.
+The menu is limited to a subset of the likeliest actions, not an
+exhaustive set of all possibilities.
+Autocompletes.
+.lp ""
+If mouse support is enabled and the
+.op herecmd_menu
+option is On, clicking on the hero (or steed when mounted) will
+execute this command.
 .lp "#history "
 Show long version and game history.
 Default key is \(oqV\(cq.
@@ -1473,7 +1482,15 @@ In debug mode there are additional choices.
 Autocompletes.
 Default key is \(oq<del>\(cq or \(oq<delete>\(cq (see \fIDel\fP above).
 .lp #therecmdmenu
-Show a menu of possible actions in a location next to you.
+Show a menu of possible actions directed at a location next to you.
+The menu is limited to a subset of the likeliest actions, not an
+exhaustive set of all possibilities.
+Autocompletes.
+.\"--invoking it by mouse seems to be broken
+.\" .lp ""
+.\" If mouse support is enabled and the
+.\" .op herecmd_menu
+.\" option is On, clicking on an adjacent location will execute this command.
 .lp "#throw   "
 Throw something.
 Default key is \(oqt\(cq.
@@ -1642,16 +1659,27 @@ with another key, modifies it by setting the \(lqmeta\(rq [8th,
 or \(lqhigh\(rq] bit), you can invoke many extended commands by meta-ing
 the first letter of the command.
 .pg
-In \fIWindows\fP, \fIOS/2\fP, \fIPC\fP and \fIST\fP \fINetHack\fP,
+On \fIWindows\fP and \fIMS-DOS\fP,
-the \(lqAlt\(rq key can be used in this fashion;
+the \(lqAlt\(rq key can be used in this fashion.
-on the \fIAmiga\fP, set the
+.\" On the \fIAmiga\fP, set the
-.op altmeta
+.\" .op altmeta
-option to get this behavior.
+.\" option to get this behavior.
 On other systems, if typing \(lqAlt\(rq plus another key transmits a
 two character sequence consisting of an \fBEscape\fP
 followed by the other key, you may set the
 .op altmeta
 option to have NetHack combine them into meta+key.
+(This combining action only takes place when NetHack is expecting a
+command to execute, not when accepting input to name something or to
+make a wish.)
+.pg
+Unlike control characters, where \(hax and \(haX denote the same thing,
+meta characters are case-sensitive:  M-x and M-X represent different things.
+Some commands which can be run via a meta character require that the
+letter be capitalized because the lower-case equivalent is used for
+another command, so the three key combination meta+shift+letter is needed.
+.BR 1
+.
 .lp M-?
 #? (not supported by all platforms)
 .lp M-2
@@ -1706,6 +1734,8 @@ option is enabled)
 #version
 .lp M-w
 #wipe
+.lp M-X
+#exploremode
 .lp ""
 .pg
 If the

doc/Guidebook.tex

@@ -45,7 +45,7 @@
 %.au
 \author{Original version - Eric S. Raymond\\
 (Edited and expanded for 3.7 by Mike Stephenson and others)}
-\date{December 13, 2020}
+\date{December 16, 2020}
 
 \maketitle
 
@@ -1059,9 +1059,9 @@ the exchange still takes place.
 Toggle two-weapon combat, if your character can do it.  Also available
 via the ``{\tt \#twoweapon}'' extended command.\\
 %.lp ""
-(In versions prior to 3.6 this was the command to switch from normal
+(In versions prior to 3.6 this keystroke ran the command to switch from normal
 play to ``explore mode'', also known as ``discovery mode'', which has now
-been moved to ``{\tt \#exploremode}''.)
+been moved to ``{\tt \#exploremode}'' and M-X.)
 %.lp
 \item[\tb{\^{}X}]
 Display basic information about your character.\\
@@ -1282,7 +1282,8 @@ Advance or check weapon and spell skills. Autocompletes.
 Default key is `{\tt M-e}'.
 %.lp
 \item[\tb{\#exploremode}]
-Enter the explore mode.\\
+Switch from normal play to non-scoring explore mode.
+Default key is `{\tt M-X}'.\\
 %.lp ""
 Requires confirmation; default response is `{\tt n}' (no).
 To really switch to explore mode, respond with `{\tt y}'.
@@ -1305,7 +1306,14 @@ Default key is `{\tt ?}',
 and also `{\tt h}' if {\it number\verb+_+pad\/} is on.
 %.lp
 \item[\tb{\#herecmdmenu}]
-Show a menu of possible actions in your current location.
+Show a menu of possible actions directed at your current location.
+The menu is limited to a subset of the likeliest actions, not an
+exhaustive set of all possibilities.
+Autocompletes.\\
+%.lp ""
+If mouse support is enabled and the {\it herecmd\verb+_+menu\/}
+option is On, clicking on the hero (or steed when mounted) will
+execute this command.
 %.lp
 \item[\tb{\#history}]
 Show long version and game history. Default key is `{\tt V}'.
@@ -1565,7 +1573,15 @@ Autocompletes.
 Default key is `<del>' or `<delete>' (see {\it Del\/} above).
 %.lp
 \item[\tb{\#therecmdmenu}]
-Show a menu of possible actions in a location next to you.
+Show a menu of possible actions directed at a location next to you.
+The menu is limited to a subset of the likeliest actions, not an
+exhaustive set of all possibilities.
+Autocompletes.
+%%--invoking it by mouse seems to be broken
+%% \\
+%% .lp ""
+%% If mouse support is enabled and the {\it herecmd\verb+_+menu\/}
+%% option is On, clicking on an adjacent location will execute this command.
 %.lp
 \item[\tb{\#throw}]
 Throw something. Default key is `{\tt t}'.
@@ -1750,13 +1766,26 @@ Help menu:  get the list of available extended commands.
 with another key, modifies it by setting the `meta' [8th, or `high']
 bit), you can invoke many extended commands by meta-ing the first
 letter of the command.
-In {\it Windows, OS/2, PC\/ {\rm and} ST NetHack},
+
-the `Alt' key can be used in this fashion;
+On {\it Windows\/} and {\it MS-DOS\/},
-on the {\it Amiga}, set the {\it altmeta\/} option to get this behavior.
+the `Alt' key can be used in this fashion.
+%% On the {\it Amiga}, set the {\it altmeta\/} option to get this behavior.
 On other systems, if typing `Alt' plus another key transmits a
 two character sequence consisting of an {\tt Escape}
 followed by the other key, you may set the {\it altmeta\/}
 option to have {\it NetHack\/} combine them into meta\+key.
+(This combining action only takes place when NetHack is expecting a
+command to execute, not when accepting input to name something or to
+make a wish.)
+
+%.pg
+Unlike control characters, where ^{}x and ^{}X denote the same thing,
+meta characters are case-sensitive:  M-x and M-X represent different things.
+Some commands which can be run via a meta character require that the
+letter be capitalized because the lower-case equivalent is used for
+another command, so the three key combination meta+shift+letter is needed.
+
+%.BR 1
 \blist{}
 %.lp
 \item[\tb{M-?}]
@@ -1836,6 +1865,9 @@ option to have {\it NetHack\/} combine them into meta\+key.
 %.lp
 \item[\tb{M-w}]
 {\tt\#wipe}
+%.lp
+\item[\tb{M-X}]
+{\tt\#exploremode}
 \elist
 
 %.pg

doc/fixes37.0

@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.392 $ $NHDT-Date: 1607936398 2020/12/14 08:59:58 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.393 $ $NHDT-Date: 1608175317 2020/12/17 03:21:57 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -671,6 +671,8 @@ when "?i" (show key bindings) displays commands and their keys, also show
 	commands without any key (so useable via '#', or possibly menu, only;
 	the majority are debugging commands)
 assign default key binding for <del> or <delete> to execute #terrain
+assign M-X to #exploremode
+make #herecmdmenu and #therecmdmenu autocomplete
 
 
 Platform- and/or Interface-Specific New Features

src/cmd.c

@@ -1,4 +1,4 @@
-/* NetHack 3.7	cmd.c	$NHDT-Date: 1608116853 2020/12/16 11:07:33 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.435 $ */
+/* NetHack 3.7	cmd.c	$NHDT-Date: 1608175318 2020/12/17 03:21:58 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.436 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2013. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -1817,7 +1817,7 @@ struct ext_func_tab extcmdlist[] = {
     { 'E', "engrave", "engrave writing on the floor", doengrave },
     { M('e'), "enhance", "advance or check weapon and spell skills",
             enhance_weapon_skill, IFBURIED | AUTOCOMPLETE },
-    { '\0', "exploremode", "enter explore (discovery) mode",
+    { M('X'), "exploremode", "enter explore (discovery) mode",
             enter_explore_mode, IFBURIED | GENERALCMD },
     { 'f', "fire", "fire ammunition from quiver", dofire },
     { M('f'), "force", "force a lock", doforce, AUTOCOMPLETE },
@@ -1825,7 +1825,7 @@ struct ext_func_tab extcmdlist[] = {
             doquickwhatis, IFBURIED | GENERALCMD },
     { '?', "help", "give a help message", dohelp, IFBURIED | GENERALCMD },
     { '\0', "herecmdmenu", "show menu of commands you can do here",
-            doherecmdmenu, IFBURIED | GENERALCMD },
+            doherecmdmenu, IFBURIED | AUTOCOMPLETE | GENERALCMD },
     { 'V', "history", "show long version and game history",
             dohistory, IFBURIED | GENERALCMD },
     { 'i', "inventory", "show your inventory", ddoinv, IFBURIED },
@@ -1929,7 +1929,7 @@ struct ext_func_tab extcmdlist[] = {
             doterrain, IFBURIED | AUTOCOMPLETE },
     { '\0', "therecmdmenu",
             "menu of commands you can do from here to adjacent spot",
-            dotherecmdmenu, GENERALCMD },
+            dotherecmdmenu, AUTOCOMPLETE | GENERALCMD },
     { 't', "throw", "throw something", dothrow },
     { '\0', "timeout", "look at timeout queue and hero's timed intrinsics",
             wiz_timeout_queue, IFBURIED | AUTOCOMPLETE | WIZMODECMD },