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+======Synopsis:======
+xdebug [<+|-><option>] [[block]]
+======Description:======
+This intentionally undocumented command provides access to developmental,
+incomplete, broken, or debugging features.  These features are intended
+for internal development use and are unsafe to use unless you are told
+otherwise.
+The only complete documentation for this command is found in the source
+code, and maybe in https://www.epicsol.org/CHANGELOG if you're lucky.
+If no arguments are specified, [[xdebug command|xdebug]] shows all of the
+xdebug options.
+[[xdebug command|xdebug]] options are subject to change at any time and
+without any advance notice.
+[[xdebug command|xdebug]] options can and probably will break your client.
+The use of [[xdebug command|xdebug]] results in expressly undefined behavior.
+You Have Been Warned.
+The [[xdebug command|xdebug]] inbound and outbound options allow you to
+monitor the client's interaction with the server. This is potentially useful
+for debugging scripts, and will probably not go away anytime soon.
+The [[xdebug]] dword option allows you to turn on double quoted word support
+which is experimental at this time, but will be officially supported soon.
+The [[xdebug]] command optionally takes a [[block]] of code.  When you do
+this, the xdebug option is turned on, the block of code is executed, and
+then **the original xdebug value is restored**.  This is a way to temporarily
+ensure a value is turned on without having to save + restore the old value.
+You cannot permanently turn on an xdebug option if you use the [[block]] form,
+even if you do [[xdebug]] within the block, sorry.