From 51e109968beb0c4f2fc4ac8524c3bbf1b74da369 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 12 Apr 2020 15:09:16 +0100
Subject: Only parse integer font sizes

---
 mammoth/docx/body_xml.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'mammoth/docx')

diff --git a/mammoth/docx/body_xml.py b/mammoth/docx/body_xml.py
index 7bb8628..e65c5b2 100644
--- a/mammoth/docx/body_xml.py
+++ b/mammoth/docx/body_xml.py
@@ -81,7 +81,7 @@ def _create_reader(numbering, content_types, relationships, styles, docx_file, f
         font = properties.find_child_or_null("w:rFonts").attributes.get("w:ascii")
 
         font_size_string = properties.find_child_or_null("w:sz").attributes.get("w:val")
-        if font_size_string:
+        if _is_int(font_size_string):
             # w:sz gives the font size in half points, so halve the value to get the size in points
             font_size = int(font_size_string) / 2
         else:
@@ -602,3 +602,15 @@ def _add_attrs(obj, **kwargs):
         setattr(obj, key, value)
 
     return obj
+
+
+def _is_int(value):
+    if value is None:
+        return False
+
+    try:
+        int(value)
+    except ValueError:
+        return False
+
+    return True
-- 
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