Support OpenType writing script (#1697)

4 files changed, 30 insertions, 0 deletions

diff --git a/tests/ref/text/lang.png b/tests/ref/text/lang.png
index 9ec88152..a5ae8979 100644
--- a/tests/ref/text/lang.png
+++ b/tests/ref/text/lang.png
diff --git a/tests/ref/text/shaping.png b/tests/ref/text/shaping.png
index 278fe8ee..a77dda3a 100644
--- a/tests/ref/text/shaping.png
+++ b/tests/ref/text/shaping.png
diff --git a/tests/typ/text/lang.typ b/tests/typ/text/lang.typ
index a70b4d63..7f1ae1fc 100644
--- a/tests/typ/text/lang.typ
+++ b/tests/typ/text/lang.typ
@@ -23,6 +23,26 @@
 #text(lang: "sr")[Бб]
 
 ---
+// Verify that writing script/language combination has an effect
+#{
+  set text(size:20pt)
+  set text(script: "latn", lang: "en")
+  [Ş ]
+  set text(script: "latn", lang: "ro")
+  [Ş ]
+  set text(script: "grek", lang: "ro")
+  [Ş ]
+}
+
+---
+// Error: 19-23 expected string or auto, found none
+#set text(script: none)
+
+---
+// Error: 19-23 expected three or four letter script code (ISO 15924 or 'math')
+#set text(script: "ab")
+
+---
 // Error: 17-21 expected string, found none
 #set text(lang: none)
 
diff --git a/tests/typ/text/shaping.typ b/tests/typ/text/shaping.typ
index 3a99815b..3a8d5411 100644
--- a/tests/typ/text/shaping.typ
+++ b/tests/typ/text/shaping.typ
@@ -12,6 +12,16 @@ ABCअपार्टमेंट
 अ पा र् ट में ट
 
 ---
+// A forced `latn` script inhibits Devanagari font features.
+#set text(script: "latn")
+ABCअपार्टमेंट
+
+---
+// A forced `deva` script enables Devanagari font features.
+#set text(script: "deva")
+ABCअपार्टमेंट
+
+---
 // Test that RTL safe-to-break doesn't panic even though newline
 // doesn't exist in shaping output.
 #set text(dir: rtl, font: "Noto Serif Hebrew")