Lua Pattern Matching a pattern

Question

My problem is this. I have a string containing let's say

local mystring = "ASD_ASDDFS_SDF_ASDASD as8d76 na879yd"

I want to take the part of the string that has the capital letters with the underline. Now normally this would be easy but right now this string can change from time to time. So the string could be say

local mystring = "ASD_ASDDFS_SDF as8d76 na879yd"

or

local mystring = "ASD_ASDDFS_SDF_YUIOY asaasd na879yd"

Now the letters always start out as capital and are always connected using an underscore. And it's only this part I want to capture.

I thought of doing something like

local capitalpart = mystring:match("%u*%_%u*(%_%u*)+"))

So that it captures an underscore followed by capitals repeadedly. But this didn't work.

Yu Hao · Accepted Answer · 2015-09-21 02:09:31Z

4

You can use the following pattern:

[%u_]+

edited Sep 21, 2015 at 2:09

Yu Hao

123k50 gold badges252 silver badges305 bronze badges

answered Sep 20, 2015 at 14:19

karthik manchala

13.7k1 gold badge34 silver badges55 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

hjpotter92 Over a year ago

It should be noted that; that would be the only pattern required. local capitalpart = mystring:match "^([%u_]+)"

Collectives™ on Stack Overflow

Lua Pattern Matching a pattern

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related