Simplify _hex_literal at the advice of tree-sitter generate (#138)

* Simplify `_hex_literal` at the advice of `tree-sitter generate` * CHANGELOG bullet
r-lib · Sep 6, 2024 · c8b6e5f · c8b6e5f
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## devel
 
+- The internal `_hex_literal` rule was simplified slightly (#138).
+
 ## 1.1.0
 
 - Switched to using `tree-sitter-language` in the Rust bindings to remove a dependency on a specific `tree-sitter` crate version (#133).

diff --git a/grammar.js b/grammar.js
@@ -455,7 +455,7 @@ module.exports = grammar({
     complex: $ => seq($._float_literal, "i"),
     float: $ => $._float_literal,
 
-    _hex_literal: $ => seq(/0[xX][0-9a-fA-F]+/),
+    _hex_literal: $ => /0[xX][0-9a-fA-F]+/,
     _number_literal: $ => /(?:(?:\d+(?:\.\d*)?)|(?:\.\d+))(?:[eE][+-]?\d*)?/,
     _float_literal: $ => choice($._hex_literal, $._number_literal),
 

diff --git a/src/grammar.json b/src/grammar.json