Regex to match anything in braces?

[kaihendry]

https://regex101.com/r/Vclncq/1

I have some code that looks like:

terraform {
  backend "s3" {
    region = "ap-southeast-1"
    key    = "01-service-quota-state.json"
    bucket = "foobar-dev-infra-tf-state"
    dynamodb_table = "foobar-dev-infra-tf-state-lock"
  }

  required_providers {
    aws = {
      source = "hashicorp/aws"
    }
  }
}

I can't seem to match that using rg -U -e 'backend "s3" \{(.*?)\}' . ... what am I missing please?

[BurntSushi]

Like pretty much all other regex engines, . matches every character except for newlines. You can make it match any character by enabling the s flag (also like in almost all other regex engines):

[andrew@frink d2334]$ cat haystack          
terraform {
  backend "s3" {
    region = "ap-southeast-1"
    key    = "01-service-quota-state.json"
    bucket = "foobar-dev-infra-tf-state"
    dynamodb_table = "foobar-dev-infra-tf-state-lock"
  }

  required_providers {
    aws = {
      source = "hashicorp/aws"
    }
  }
}
[andrew@frink d2334]$ rg -U 'backend "s3" \{(.*?)\}' haystack     
[andrew@frink d2334]$ rg -U 'backend "s3" \{((?s:.)*?)\}' haystack
2:  backend "s3" {
3:    region = "ap-southeast-1"
4:    key    = "01-service-quota-state.json"
5:    bucket = "foobar-dev-infra-tf-state"
6:    dynamodb_table = "foobar-dev-infra-tf-state-lock"
7:  }

Equivalently, you can use \p{any}:

$ rg -U 'backend "s3" \{(\p{any}*?)\}' haystack
2:  backend "s3" {
3:    region = "ap-southeast-1"
4:    key    = "01-service-quota-state.json"
5:    bucket = "foobar-dev-infra-tf-state"
6:    dynamodb_table = "foobar-dev-infra-tf-state-lock"
7:  }

Indeed, your regex101 example works because you have s set, but did not carry that setting over to ripgrep:

Note that g is irrelevant for ripgrep, and ripgrep always has m enabled by default.