Tree Sitter: Add custom HTML queries.

 






 

 


  Review Request #14521
  —
  Created July 28, 2025 and updated 

 




















 

  

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The HTML highlights queries implemented by nvim-treesitter are extremely

slow, and don't seem to actually buy us anything in the resulting

output. This change adds custom queries for HTML which are based on the

upstream queries from the tree-sitter-html implementation, but with

improved injections for inline CSS and JS within tags.

 








  


 
 

  
    

  • Ran unit tests.
    • 

  • Checked syntax highlighting of HTML and verified that everything
    
  looked good, including injected CSS and JS both in <script> and
    
<style> tags, as well as on*="" andstyle=""` attributes.
    • 

  • Profiled syntax highlighting of HTML and verified that the performance
    
  of these queries was better (by 100x) than the nvim-treesitter HTML
    
  queries.
    • 


 







 









 





  

 


 
 

  



 

  
   


    Summary
    ID

   

  
  

   


    

     

      Tree Sitter: Add custom HTML queries.
      
The HTML highlights queries implemented by nvim-treesitter are extremely
slow, and don't seem to actually buy us anything in the resulting
output. This change adds custom queries for HTML which are based on the
upstream queries from the tree-sitter-html implementation, but with
improved injections for inline CSS and JS within tags.

Testing Done:
- Ran unit tests.
- Checked syntax highlighting of HTML and verified that everything
  looked good, including injected CSS and JS both in `<script>` and
  `<style>` tags, as well as `on*="" and `style=""` attributes.
- Profiled syntax highlighting of HTML and verified that the performance
  of these queries was better (by 100x) than the nvim-treesitter HTML
  queries.

     


    		
    633586a380e87d515bccf5eaae3d14b9d71707ce

   



  
 




 













 









 






  

 



















 




 

  


   

   

    
 
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