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(define-module (crn packages tree-sitter)
  #:use-module ((guix licenses) #:prefix license:)  #:use-module (guix packages)
  #:use-module (guix gexp)
  #:use-module (guix utils)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages)
  #:use-module (gnu packages icu4c))

(define-public tree-sitter
  (package
    (name "tree-sitter")
    (version "0.24.3")                 ;untagged
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/tree-sitter/tree-sitter")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1pn1k2ch14y48718l7s21rz5alqgdw1bis25r9x4rm6zac7kiy6q"))
              (modules '((guix build utils)))
              (snippet #~(begin
                           ;; Remove bundled ICU parts
                           (delete-file-recursively "lib/src/unicode")))))
    (build-system gnu-build-system)
    (inputs (list icu4c))
    (arguments
     (list #:phases
           #~(modify-phases %standard-phases
               (delete 'configure))
           #:tests? #f ; there are no tests for the runtime library
           #:make-flags
           #~(list (string-append "PREFIX=" #$output)
                   (string-append "CC=" #$(cc-for-target)))))
    (home-page "https://tree-sitter.github.io/tree-sitter/")
    (synopsis "Incremental parsing system for programming tools")
    (description
     "Tree-sitter is a parser generator tool and an incremental parsing
library.  It can build a concrete syntax tree for a source file and
efficiently update the syntax tree as the source file is edited.

Tree-sitter aims to be:

@itemize
@item General enough to parse any programming language
@item Fast enough to parse on every keystroke in a text editor
@item Robust enough to provide useful results even in the presence of syntax errors
@item Dependency-free so that the runtime library (which is written in pure C)
can be embedded in any application
@end itemize

This package includes the @code{libtree-sitter} runtime library.")
    (license license:expat)))