Data commit

Task/Exceptions/Langur/exceptions-1.langur

@@ -0,0 +1,14 @@
+# do something
+throw "not a math exception"
+
+catch .e {
+    if .e["cat"] == "math" {
+        # change result...
+    } else {
+        # rethrow the exception
+        throw
+    }
+} else {
+    # no exception
+    ...
+}

Task/Exceptions/Langur/exceptions-2.langur

@@ -0,0 +1,10 @@
+100 / 0
+
+catch {
+    if _err["cat"] == "math" {
+        # change result
+        123
+    } else {
+        throw
+    }
+}

Task/Exceptions/Langur/exceptions-3.langur

@@ -0,0 +1,3 @@
+val .safediv = f { .x / .y ; catch { 0 } }
+.safediv(7, 7) # 1
+.safediv(7, 0) # 0