Escape Terraform Unsafe Characters instead of Replacing with --

[t0rr3sp3dr0]

Previously, characters that could not be used in Terraform identifiers were replaced by --. This behavior cloud lead to a resource name collision, for example (example) and [example] would generate --example--.

Instead of replacing those characters with a fixed string, we can escape those characters making any two different string generate a unique Terraform identifier.

As specified in Terraform's documentation, - character is a valid identifier character, although it is not recommended to be used and _ should be used instead. So I used - as an escape character.

Everything that is not _ and is not between 0 and 9, A and Z, and a and z should be escaped, - included. To escape characters we could simply use the character's Unicode value, so even emojis could be used on resources' identifier and generate a safe Terraform identifier.

• ~ would become -007E-
• ! would become -0021-
• @ would become -0040-
• - would become -002D-

If a resource was named as 3x 4mp !3 it now would be identified as tfer--3x-0020-4mp-0009--0021-3 on Terraform.