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Syntax highlighting for ER Diagrams

Syntax support in Visual Studio Code for Entity-Relationship Diagram files (.er files) with highlighting for entities, primary keys, comments and more. This has been designed around Material Theme so stylings might appear different depending on theme.

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Preview

Preview syntax highlight

Syntax

This is based on the syntax used by erd-go but also supports cardinalities used by erd and erdm.

Markdown

This extension also provides syntax highlighting and previewing of ER code in Markdown.