Syntax highlighting not working properly

[baelter]

Description

Ruby LSP Information

Ruby LSP Information

VS Code Version

1.94.2

Ruby LSP Extension Version

0.8.6

Ruby LSP Server Version

0.20.1

Ruby LSP Addons

Ruby Version

3.3.5

Ruby Version Manager

rbenv

Installed Extensions

Click to expand

• better-comments (3.0.2)
• haml-lint (0.2.1)
• project-manager (12.8.0)
• auto-add-brackets (0.12.2)
• markdown-mermaid (1.25.0)
• mermaid-markdown-syntax-highlighting (1.6.6)
• systemd-unit-file (1.0.6)
• crystal-lang (0.9.6)
• doxdocgen (1.4.0)
• vscode-markdownlint (0.56.0)
• gitlens (15.6.2)
• vscode-html-css (2.0.10)
• EditorConfig (0.16.4)
• RunOnSave (0.2.4)
• copilot (1.239.0)
• copilot-chat (0.21.2)
• vscode-github-actions (0.27.0)
• vscode-pull-request-github (0.98.0)
• todo-tree (0.0.226)
• output-colorizer (0.1.2)
• workspacesort (1.6.2)
• custom-local-formatters (0.0.6)
• haml (1.4.1)
• vscode-rdbg (0.2.2)
• rainbow-csv (3.12.0)
• dotenv (1.0.1)
• vscode-kubernetes-tools (1.3.18)
• debugpy (2024.12.0)
• isort (2023.10.1)
• python (2024.16.1)
• vscode-pylance (2024.10.1)
• jupyter (2024.9.1)
• remote-containers (0.388.0)
• remote-ssh (0.115.0)
• remote-wsl (0.88.4)
• makefile-tools (0.11.13)
• remote-explorer (0.4.3)
• vsliveshare (1.0.5941)
• vscode-template-literal-editor (0.10.0)
• vscode-yaml (1.15.0)
• vscode-sort-json (1.20.0)
• vscode-qt-for-python (7.6.0)
• ruby-extensions-pack (0.1.12)
• ruby-lsp (0.8.6)
• sorbet-vscode-extension (0.3.37)
• vscode-standard (2.1.3)
• code-spell-checker (3.0.1)
• vscode-stylelint (1.4.0)
• shellcheck (0.37.1)
• errorlens (3.20.0)
• vscode-lldb (1.11.0)
• crystal-ameba (0.2.1)
• simple-ruby-erb (0.2.1)
• vscode-gradle (3.16.4)
• debug (0.27.0)

Ruby LSP Settings

Click to expand

Workspace

{}

User

{
  "enableExperimentalFeatures": false,
  "enabledFeatures": {
    "codeActions": true,
    "diagnostics": true,
    "documentHighlights": true,
    "documentLink": true,
    "documentSymbols": true,
    "foldingRanges": true,
    "formatting": true,
    "hover": true,
    "inlayHint": true,
    "onTypeFormatting": true,
    "selectionRanges": true,
    "semanticHighlighting": true,
    "completion": true,
    "codeLens": true,
    "definition": true,
    "workspaceSymbol": true,
    "signatureHelp": true,
    "typeHierarchy": true
  },
  "featuresConfiguration": {},
  "addonSettings": {},
  "rubyVersionManager": {
    "identifier": "auto"
  },
  "customRubyCommand": "",
  "formatter": "auto",
  "linters": null,
  "bundleGemfile": "",
  "testTimeout": 30,
  "branch": "",
  "pullDiagnosticsOn": "both",
  "useBundlerCompose": false,
  "bypassTypechecker": false,
  "rubyExecutablePath": "",
  "indexing": {},
  "erbSupport": true
}

Reproduction steps

1. Start the Ruby LSP using a certain editor
2. Open a Ruby file
3. Do something
4. See unexpected behavior

Symbols are sometimes broken in half and highlighting just goes crazy.

[vinistock]

Thank you for the bug report! Can you share a minimal Ruby snippet that reproduces the issue? I suspect that this might be related to how we handle multibyte characters, but there's no way to tell if we don't know what syntax triggers it.

[andyw8]

Also @baelter, have you noticed if this happens only when you open files from outside of the workspace?

[baelter]

I haven't been able to narrow it down unfortunately. It's not related to opening files outside the workspace though.
It could be related to there being a syntax error in on open file, but I can say conclusively. I'll try to gather more info.

[baelter]

Probably not an issue on your end, just saw it happen for a colleague that uses solargraph.