Question 1

How to parse a CSS file with ExCSS in .NET Core?

Accepted Answer

Use the StylesheetParser class to read CSS text from a file; parse it into a queryable object model. For example, load the file content as a string and pass it to the parser for easy access to rules and properties.

Question 2

ExCSS vs CSSAgilityPack for parsing CSS in .NET?

Accepted Answer

ExCSS focuses on CSS 3 compliance and LINQ integration, making it better for standards-based analysis, while CSSAgilityPack is more general-purpose for HTML/CSS but may lack ExCSS's specific parsing precision.

Question 3

Does ExCSS support modern CSS features like Grid or Flexbox?

Accepted Answer

ExCSS handles CSS 3 selectors and rules via its grammar; it parses properties like Grid or Flexbox as standard CSS if they fit the syntax, but check the object model for specific property support as CSS evolves.

Question 4

How to extract all class names from CSS using ExCSS?

Accepted Answer

Query the parsed stylesheet's StyleRules collection with LINQ to access SelectorText properties, filtering for class selectors (e.g., .className) to extract them programmatically.

Question 5

ExCSS performance with large stylesheets?

Accepted Answer

The parsing engine is efficient, but large CSS files increase memory usage due to the full object model; performance is generally good for web-scale stylesheets, but test with your specific workload.

Question 6

Can ExCSS modify and save CSS back to a file?

Accepted Answer

ExCSS parses CSS into a modifiable object model, but saving requires serializing the object back to CSS text, which isn't built-in and may need custom implementation for reliable output.

ExCSS

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