Data commit

Task/Extend-your-language/Es/extend-your-language-1.es

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+fn if2 cond1 cond2 body11 body10 body01 body00 {
+	# Must evaluate both conditions, and should do so in order.
+	# Negation ensures a boolean result: a true condition becomes
+        # 1 for false; a false condition becomes 0 for true.
+	let (c1 = <={! $cond1}; c2 = <={! $cond2}) {
+		# Use those values to pick the body to evaluate.
+		$(body$c1$c2)
+	}
+}

Task/Extend-your-language/Es/extend-your-language-2.es

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+if2 {test 1 -gt 0} {~ grill foo bar boo} {
+	echo 1 and 2
+} {
+	echo 1 but not 2
+} {
+	echo 2 but not 1
+} {
+	echo neither 1 nor 2
+}