Editing Engine:CCMD lua.lua edit (section)

== Details ==
Used to run a Lua text directly in the 'lua' context, if the first statement is not engine command, variable or alias in the 'lua' context. This allows the script in the 'lua' context to act as though it were running directly in a Lua console.

While the 'lua' context has the ability to hold variables and aliases, they cannot be created from script as the 'lua' context has no 'alias', 'set' or 'var' type script commands added to the context.

; Line by line processing:
The 'lua_edit' default command will only be run when a statement is not another context, or a command, variable, or alias. Script in the 'lua' context is still run statement by statement, as script in the engine. 

For example:
<kua>
context lua
print(1+2); exit
</kua>
Is actually:
<kua>
context lua
print(1+2) -- sent to Lua runtime
;          // script statement delimiter processed in script
exit       // script
</kua>
This however would run ';' delimited statements in one Lua chunk, using the 'lua' context 'run' command. And then still run the script 'exit' command:
<kua>
context lua
run `print(1+2);print(1+2)`;exit
</kua>
And this fails because 'if', 'print', and 'end' are in separate script statements:
<kua>
context lua
if bob then -- Lua errer!
   print(1 + 2)
end
</kua>
These work:
<kua>
context lua
run `if bob then
   print(1 + 3)
end`
if bob then print(1 + 4) end
</kua>

; Outer return statement:
If the outer scope of the Lua code calls return, the return values will be printed. For example: <kua>
context lua
a = 1
return a
return 100 + 1000
</kua> Will write '1' and '1100' to the engine log/console.

This is similar to an interactive Lua console's '=' convenience command like <code>=100</code>, where will output '100' in the console when '=' starts a console line, after the command is run. In the engine real Lua interactive console, and this mechanism is special to only 'lua_edit', and is provided for similar convenience.