iLogic Formatter

A VS Code extension that formats Autodesk Inventor iLogic rules (.iLogicVb files).

Features

• Indentation — Correctly indents If/End If, For/Next, Sub/End Sub, Function/End Function, With/End With, Select Case/End Select, Try/Catch/End Try, and all other VB.NET block structures
• Keyword casing — Normalizes VB.NET keywords to their canonical casing (dim → Dim, if → If, integer → Integer, etc.)
• Blank line normalization — Collapses multiple consecutive blank lines and optionally inserts a blank line after End Sub / End Function
• Comment formatting — Ensures a space after the comment apostrophe ('comment → ' comment)
• Syntax highlighting — Full TextMate grammar for .iLogicVb files

Usage

The formatter hooks into VS Code's standard formatting commands:

• Format Document: Shift+Alt+F
• Format on Save: enable via editor.formatOnSave in settings

Configuration

All settings are under ilogicFormatter.* in VS Code settings:

Example settings.json:

{
  "editor.formatOnSave": true,
  "[ilogicvb]": {
    "editor.defaultFormatter": "womabre.ilogic-formatter"
  },
  "ilogicFormatter.indentSize": 4,
  "ilogicFormatter.normalizeKeywords": true
}

Installation

From VSIX (recommended)

1. Run npm install then npm run package to build the .vsix file
2. In VS Code: Extensions → ... → Install from VSIX

Development

npm install
npm run compile
# Press F5 in VS Code to launch Extension Development Host

Notes

• iLogic rules use a VB.NET dialect with Inventor-specific globals (iProperties, Parameter, etc.) — these are treated as identifiers and their casing is left unchanged
• Single-line If x Then DoSomething is detected and not indented
• ElseIf, Else, Catch, Finally correctly dedent then re-indent