Fix raw bidi text (#3885)

crates/typst/src/layout/inline/mod.rs

@@ -450,10 +450,10 @@ fn collect<'a>(
             let prev = full.len();
             let dir = TextElem::dir_in(styles);
             if dir != outer_dir {
-                // Insert "Explicit Directional Isolate".
+                // Insert "Explicit Directional Embedding".
                 match dir {
-                    Dir::LTR => full.push('\u{2066}'),
+                    Dir::LTR => full.push('\u{202A}'),
-                    Dir::RTL => full.push('\u{2067}'),
+                    Dir::RTL => full.push('\u{202B}'),
                     _ => {}
                 }
             }
@@ -465,8 +465,8 @@ fn collect<'a>(
             }
 
             if dir != outer_dir {
-                // Insert "Pop Directional Isolate".
+                // Insert "Pop Directional Formatting".
-                full.push('\u{2069}');
+                full.push('\u{202C}');
             }
             Segment::Text(full.len() - prev)
         } else if let Some(elem) = child.to_packed::<HElem>() {

crates/typst/src/text/raw.rs

@@ -443,6 +443,7 @@ impl ShowSet for Packed<RawElem> {
     fn show_set(&self, styles: StyleChain) -> Styles {
         let mut out = Styles::new();
         out.set(TextElem::set_overhang(false));
+        out.set(TextElem::set_lang(Lang::ENGLISH));
         out.set(TextElem::set_hyphenate(Hyphenate(Smart::Custom(false))));
         out.set(TextElem::set_size(TextSize(Em::new(0.8).into())));
         out.set(TextElem::set_font(FontList(vec![FontFamily::new("DejaVu Sans Mono")])));

tests/typ/layout/par-bidi.typ

@@ -54,6 +54,16 @@ Lריווח #h(1cm) R
 #linebreak()
 ב #text("12:00 - 13:00",dir:ltr) בצהריים
 
+---
+// Mixing raw
+#set text(lang: "he")
+לדוג. `if a == b:` זה תנאי
+#set raw(lang:"python")
+לדוג. `if a == b:` זה תנאי
+
+#show raw: set text(dir:rtl)
+לתכנת בעברית `אם א == ב:`
+
 ---
 // Test setting a vertical direction.
 // Ref: false