<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=514908) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=514908) </details> <!--IssueSummary end--> ### Summary Gitlab file viewer often highlights a dot with red background. It does not seem to be a Unicode extended character as discussed in #16683 or some other unprintable characters affecting this. ### Steps to reproduce Create a `test.tf`, add a line like `environment = data.terraform` in it. ### Example Project https://gitlab.com/richlv/gitlab-test/-/blob/main/test.tf ### What is the current *bug* behavior? The dot is highlighted in red. ### What is the expected *correct* behavior? The dot is not highlighted. ### Relevant logs and/or screenshots {width=233 height=47} This bug happens on GitLab.com ## Proposal Syntax highlighting support can be added to the blob viewer by following the guide for [Adding syntax highlighting support](https://docs.gitlab.com/development/fe_guide/blob_syntax_highlighting/#adding-syntax-highlighting-support). There is a separate Terraform Library for Highlight JS which is located here: https://github.com/highlightjs/highlightjs-terraform