Also add highlighting for paths.

default_environment/stylesheet/language_nix.css

@@ -3,6 +3,7 @@
   --srclg-nix-srchl-comment-color: #048a81;
   --srclg-nix-srchl-property-color: #bfbccb;
   --srclg-nix-srchl-string-color: #ecc30b;
+  --srclg-nix-srchl-string-special-path-color: #067bc2;
 }
 
 @media (prefers-color-scheme: light) {
@@ -11,6 +12,7 @@
     --srclg-nix-srchl-comment-color: #fb757e;
     --srclg-nix-srchl-property-color: #404334;
     --srclg-nix-srchl-string-color: #133cf4;
+    --srclg-nix-srchl-string-special-path-color: #f9843d;
   }
 }
 
@@ -29,6 +31,9 @@
       .srchl_string {
         color: var(--srclg-nix-srchl-string-color);
       }
+      .srchl_string_special_path {
+        color: var(--srclg-nix-srchl-string-special-path-color);
+      }
     }
   }
 }

src/context/src_block.rs

@@ -47,7 +47,7 @@ render!(RenderSrcBlock, ISrcBlock, original, _render_context, {
                         content: body.to_owned(),
                     },
                     ISrcSegment::HighlightStart { name } => RenderSrcSegment::HighlightStart {
-                        name: name.to_owned(),
+                        name: css_safe_name(name),
                     },
                     ISrcSegment::HighlightEnd => RenderSrcSegment::HighlightEnd,
                 })
@@ -61,3 +61,11 @@ render!(RenderSrcBlock, ISrcBlock, original, _render_context, {
         post_blank: original.post_blank,
     })
 });
+
+fn css_safe_name<S>(inp: S) -> String
+where
+    std::string::String: From<S>,
+{
+    let inp: String = inp.into();
+    inp.replace(".", "_")
+}

src/intermediate/src_block.rs

@@ -138,9 +138,11 @@ where
     L: Borrow<str>,
 {
     let highlight_names = [
-        "comment", "keyword", "property",
+        "comment",
+        "keyword",
+        "property",
         "string",
-        // "string.special.path",
+        "string.special.path",
         // "string.special.uri",
     ];
     // Need 1 highlighter per thread