Modify luaconsole to use slash-command syntax

luprex/core/cpp/luaconsole.hpp

@@ -10,19 +10,21 @@
 //    3. Add the line to the LuaConsole using 'add'.
 //    4. Get the command words using 'get_command'.
 //    5. If the command is empty, do nothing.
-//    6. If the command is nonempty, execute it and call 'clear'.
+//    6. If the command is nonempty, execute it.
 //
-// The 'words' returned by the luaconsole can be empty, meaning
-// that there's no command to execute.  If the words are nonempty,
-// then the first word is the command.  There are two hardwired
-// commands:
+// The LuaConsole expects you to type one of three things:
 //
-//    lua <expr> - execute a lua expression
-//    syntax <message> - print a syntax error message
+//   * Valid Lua Code.
+//   * Valid Lua Code preceded by '=' as shorthand for 'return'
+//   * A slash-command.
 //
-// If the first word is anything else, it means the user typed
-// that word on the command line.   It is up to you to interpret
-// such commands.
+// The 'get_command' returned by the luaconsole can be one of
+// the following:
+//
+//    empty vector   - still collecting input: do nothing.
+//    lua <expr>     - found a lua command: execute it as lua.
+//    syntax <words> - detected a syntax error: print the error.
+//    word word ...  - read a slash-command: execute the command.
 //
 //////////////////////////////////////////////////////