Contributors:

_JustDylan_

Supported Minecraft Versions:

• 1.13

Dependence:
skript and skript-mirror

Event for tab completion:
on TabCompleteEvent:
(you will need to import org.bukkit.event.server.TabCompleteEvent)

Effects:
set completions to %texts% at %text%:
example:
- set completeions to {completions::*} at tab arg 2

Expressions:
tabbed command
- returns the tabbed command
tab arg[ument]( |-)%*number%
- returns tabbed argument at argument %number%
buffer
- returns the chat buffer
event.getSender()
- returns the sender

example:

Code (Skript):

1.  
2. #example
3. import:
4.     java.io.File
5.     java.util.Arrays
6.     org.bukkit.event.server.TabCompleteEvent
7.  
8. expression scripts:
9.     get:
10.         set {_directory} to new File("plugins/Skript/scripts/")
11.         loop ...{_directory}.listFiles():
12.             add loop-value.getName() to {_scripts::*}
13.         return {_scripts::*}
14. on TabCompleteEvent:
15.     if tabbed command is "/skript" or "/sk":
16.         if tab arg 2 isn't set:
17.             set completions to "reload", "enable", "disable", "update" and "help" at tab arg 1
18.         else:
19.             if tab arg 3 isn't set:
20.                 if tab arg 1 is "update":
21.                     set completions to "check", "changes" and "download" at tab arg 2
22.                 else if tab arg 1 is "reload":
23.                     set completions to scripts, "all", "config", "aliases" and "scripts" at tab arg 2
24.                 else if tab arg 1 is "enable" or "disable":
25.                     set completions to "all" and scripts at tab arg 2
26.                 else:
27.                     cancel event
28.