Update CSS parser

CHANGELOG.md

@@ -12,6 +12,8 @@ Since difftastic is now conservative with parse errors
 (DFT_PARSE_ERROR_LIMIT is 0 by default), this seems like a better
 tradeoff.
 
+Updated CSS parser.
+
 ### Diffing
 
 `--strip-cr` now defaults to `on`, so comparing a file with CRLF

sample_files/compare.expected

@@ -254,7 +254,7 @@ sample_files/tab_before.txt sample_files/tab_after.txt
 c7fcee21dd5ebd251e2cf4cd7d4446d2  -
 
 sample_files/tailwind_before.css sample_files/tailwind_after.css
-be0cba204957b62a30e99fd03f945de5  -
+4fbb1d828afa99ad722944d97266e89e  -
 
 sample_files/text_before.txt sample_files/text_after.txt
 5fa6a472ccdeda0142eda3edcaeaa189  -

src/parse/tree_sitter_parser.rs

@@ -289,9 +289,14 @@ pub(crate) fn from_language(language: guess::Language) -> TreeSitterConfig {
             let language = unsafe { tree_sitter_css() };
             TreeSitterConfig {
                 language,
-                atom_nodes: vec!["integer_value", "float_value", "color_value"]
-                    .into_iter()
-                    .collect(),
+                atom_nodes: vec![
+                    "integer_value",
+                    "float_value",
+                    "color_value",
+                    "string_value",
+                ]
+                .into_iter()
+                .collect(),
                 delimiter_tokens: vec![("{", "}"), ("(", ")")],
                 highlight_query: ts::Query::new(
                     language,