Interpolated function with an colon in any literal string arg fails

[lamdor]

If I have a template with

test.tf:

output "test_output" {
  value = "${concat("abc", ":def")}"
}

And I apply that, I get:

$ tf apply

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

Outputs:

  test_output = ${concat("abc", ":def")}

It's the colon that makes the difference. If I change that to a comma:

test.tf (with a comma instead):

output "test_output" {
  value = "${concat("abc", ",def")}"
}

An apply gives:

$ tf apply

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

Outputs:

  test_output = abc,def

Also to note, it's not just outputs, but anywhere else that it could be interpolated at.

I tried to look into fixing this, but my go parser skills (what I think might be causing it) are pretty weak. Any ideas?

[lamdor]

Another thing to note that this is on master:

$ terraform version
Terraform v0.3.6.dev (6a6ae12fd25045a47edc27b65e304666652fb167)

Your version of Terraform is out of date! The latest version
is 0.3.5. You can update by downloading from www.terraform.io`

[lamdor]

Same thing happens on v.0.3.5 as well

[ghost]

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