From f70130322cd306268c5da12c1517dc5725615ae8 Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Thu, 15 Feb 2024 12:18:17 +0000
Subject: text -> en

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 .../lesson09_alternative_patterns/en.html                    | 12 ++++++++++++
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 create mode 100644 src/content/chapter2_flow_control/lesson09_alternative_patterns/en.html

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+<p>
+  Alternative patterns can be given for a case clause using the
+  <code>|</code> operator. If any of the patterns match then the clause matches.
+</p>
+<p>
+  If a pattern defines a variable then all of the alternative patterns for that
+  clause must also define a variable with the same name and same type.
+</p>
+<p>
+  Currently it is not possible to have nested alternative patterns, so the
+  pattern <code>[1 | 2 | 3]</code> is not valid.
+</p>
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