tree-sitter: parser generator tool and an incremental parsing library

Jacob Carlborg doob at
Fri Feb 26 20:06:46 UTC 2021

On 2021-02-22 16:56, James Blachly wrote:
> (currently #1 on HN)
> Will be keeping an eye on this. If it gains traction*, it would be nice 
> (and possibly important) to have a Dlang parser. Haven't looked in depth 
> at the grammar yet -- appears to be context free grammar.
> *Supposedly Neovim will be using this going forward

I wonder how the text editor/IDE integration is supposed to work. To 
build the parser you need Node.js and a C compiler. Is the author of the 
grammar supposed to pre-compile everything and it's loaded as a dynamic 
library? That would defiantly make it less flexible that the current 
approach TextMate grammars. TextMate grammars are very easy to modify on 
the fly and the editor will immediately be able to use the new grammar. 
No building, no compilation and no loading of dynamic libraries. But I 
do know how limiting TextMate grammars are.

I guess in theory the editor could ship with Node.js and a C compiler 
and compile on the fly to have the same flexibility as TextMate grammars.

BTW, I'm wondering if it needs to be Node.js or if any JavaScript engine 
would work. At least macOS already ships with a JavaScript engine.

/Jacob Carlborg

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