Escape & in SVG diagrams (#6579)

quantumlib · Apr 30, 2024 · 37e8df9 · 37e8df9
1 parent 2474d47
commit 37e8df9
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diff --git a/cirq-core/cirq/contrib/svg/svg.py b/cirq-core/cirq/contrib/svg/svg.py
@@ -21,6 +21,7 @@ def fixup_text(text: str):
     # https://github.com/quantumlib/Cirq/issues/2905
     text = text.replace('[<virtual>]', '')
     text = text.replace('[cirq.VirtualTag()]', '')
+    text = text.replace('&', '&amp;')
     text = text.replace('<', '&lt;').replace('>', '&gt;')
     return text
 

diff --git a/cirq-core/cirq/contrib/svg/svg_test.py b/cirq-core/cirq/contrib/svg/svg_test.py
@@ -65,6 +65,7 @@ def test_empty_moments():
     'symbol,svg_symbol',
     [
         ('<a', '&lt;a'),
+        ('<a&', '&lt;a&amp;'),
         ('<=b', '&lt;=b'),
         ('>c', '&gt;c'),
         ('>=d', '&gt;=d'),