gnu: Add tree-sitter.

* gnu/packages/text-editors.scm (tree-sitter): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/text-editors.scm

@@ -17,6 +17,7 @@
 ;;; Copyright © 2021 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2021 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2021 Calum Irwin <calumirwin1@gmail.com>
+;;; Copyright © 2022 Luis Henrique Gomes Higino <luishenriquegh2701@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -62,6 +63,7 @@ (define-module (gnu packages text-editors)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages guile)
   #:use-module (gnu packages haskell-xyz)
+  #:use-module (gnu packages icu4c)
   #:use-module (gnu packages image)
   #:use-module (gnu packages libbsd)
   #:use-module (gnu packages libreoffice)
@@ -1165,3 +1167,54 @@ (define-public virtaal
 provided by the Translate Toolkit, including XLIFF and PO.")
     (home-page "https://virtaal.translatehouse.org/")
     (license license:gpl2+)))
+
+(define-public tree-sitter
+  (package
+    (name "tree-sitter")
+    (version "0.20.6")
+    (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
+                "1z20518snyg0zp75qgs5bxmzjqws4dd19vnp6sya494za3qp5b6d"))
+              (modules '((guix build utils)))
+              (snippet '(begin
+                          ;; Remove bundled ICU parts
+                          (delete-file-recursively "lib/src/unicode")
+                          #t))))
+    (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)))