X-Git-Url: https://mudpy.org/gitweb?p=mudpy.git;a=blobdiff_plain;f=share%2Fcommand.yaml;h=fd78a03b80c99cdb50fd8572eec4e215c249396a;hp=10a0cdfb383660f9465e7687f23702a5cccc7885;hb=4973a481f1e367234ca0ff70a365b5ca3d0a34c7;hpb=dc3b9c3f13b06b80db5c9f9a4c15804dfd60af4a

diff --git a/share/command.yaml b/share/command.yaml
index 10a0cdf..fd78a03 100644
--- a/share/command.yaml
+++ b/share/command.yaml
@@ -1,5 +1,5 @@
 ---
-_copy: Copyright (c) 2004-2019 mudpy authors. Permission to use, copy,
+_copy: Copyright (c) 2004-2020 mudpy authors. Permission to use, copy,
     modify, and distribute this software is granted under terms
     provided in the LICENSE file distributed with this software.
 
@@ -30,13 +30,27 @@ command.destroy.description: Destroy an existing element in the universe.
 command.destroy.help: You can destroy any element in the universe as
     follows:$(eol)$(eol)   destroy prop.dagger
 
+command.evaluate.debugging: true
+command.evaluate.description: Evaluate a Python expression.
+command.evaluate.help: For debugging purposes, you can use this to run certain
+    Python language expressions within the running engine's context, though for
+    safety reasons only a limited set of builtins are allowed, as well as
+    objects in the mudpy package namespace and the active universe object.
+    Expressions containing "__" or "lambda" are also prohobited for additional
+    safety. Everything following the word "evaluate" is assumed to be a Python
+    expression, and is passed to the eval() built-in, outputting a string
+    representation of whatever it returns. Any exceptions are caught in an
+    attempt to avoid accidentally crashing the engine. This command is mostly
+    useful for inspecting the contents of in-memory objects, for
+    example:$(eol)$(eol) evaluate universe.groups['actor'].keys()
+
 command.halt.administrative: true
 command.halt.description: Shut down the world.
 command.halt.help: This will save all active accounts, disconnect all clients
     and stop the entire program.
 
 command.help.description: List commands or get help on one.
-command.help.help: This will list all comand words available to you along with
+command.help.help: This will list all command words available to you along with
     a brief description or, alternatively, give you detailed information on one
     command.
 
@@ -95,6 +109,5 @@ command.show.help: Here are the possible incantations (<parameter> is required,
     data files)$(eol)   show group <group> (list the elements in a
     group)$(eol)   show groups (list all element group names)$(eol)   show log
     [level [start [stop]]] (list logs above level from start to
-    stop)$(eol)   show result <expression> (evaluate a python
-    expression)$(eol)   show time (return several current timer
+    stop)$(eol)   show time (return several current timer
     values)$(eol)   show version (display running version and dependencies)