string.gsub

[Karoffe]

Just a quick question, what if i got a string like this "Word(12)", How to transform it to be : "12", so i actually want to remove "Word()".

EDIT: In a better way i want someone to explain me how the patterns work

[botder]

local text = "Word(12)" 
local extracted = text:match(".-%((%d+)%)") 

http://www.lua.org/pil/20.2.html

[Karoffe]

Thanks, Working.

but i've got some questions,

local text = "Word(12)"

local extracted = text:match(".-%((%d+)%)")

What is the utility of the colored characters in there ?

[botder]

`-` (not greedy) and `+` (greedy) tell the expression to accept 0/1 or more characters, which match `.` (every character). You have to use the not-greedy operator, because it could "eat" the characters beyond the `(` too.

Edit: `-` matches 0 or more characters (matches the shortest sequence - not greedy), `+` matches 1 or more characters (matches the longest sequence - greedy)