### Terraform Version ```shell Terraform v1.9.3 on linux_amd64 + provider registry.terraform.io/oracle/oci v6.31.0 ``` ### Terraform Configuration Files N/A. It's for regex function ### Debug Output ``` ...debug output, or link to a gist... ``` ### Expected Behavior when using regex function, it should allow positive and negative lookahead. ### Actual Behavior neither positive nor negative lookahead works with regex function ### Steps to Reproduce 1. terraform console (or try to use variable validation with regex function) 2. regex("^(?!.*--)[a-zA-Z0-9-]*$", "abc--a") or regex("^(?=.*--)[a-zA-Z0-9-]*$", "abc--a") 3. both will fail even though they are valid regex patterns ### Additional Context _No response_ ### References _No response_ ### Generative AI / LLM assisted development? _No response_