commit 86069c9e9af343d8b59c63b5e8b21f06103dce4e
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Tue Jul 4 07:37:06 2023 +0200

    lyx2lyx: skip mathed in convert_hebrew_parentheses (#12824)
    
    Those have not been swapped in Hebrew.
---
 lib/lyx2lyx/lyx_2_4.py |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/lib/lyx2lyx/lyx_2_4.py b/lib/lyx2lyx/lyx_2_4.py
index a295e0a..8c0b9c3 100644
--- a/lib/lyx2lyx/lyx_2_4.py
+++ b/lib/lyx2lyx/lyx_2_4.py
@@ -1529,7 +1529,9 @@ def convert_hebrew_parentheses(document):
     """
     # print("convert hebrew parentheses")
     current_languages = [document.language]
-    for i, line in enumerate(document.body):
+    i = 0
+    while i < len(document.body):
+        line = document.body[i]
         if line.startswith('\\lang '):
             current_languages[-1] = line.lstrip('\\lang ')
         elif line.startswith('\\begin_layout'):
@@ -1537,8 +1539,13 @@ def convert_hebrew_parentheses(document):
             # print (line, current_languages[-1])
         elif line.startswith('\\end_layout'):
             current_languages.pop()
+        elif line.startswith('\\begin_inset Formula'):
+            # In math, parentheses must not be changed
+            i = find_end_of_inset(document.body, i)
+            continue
         elif current_languages[-1] == 'hebrew' and not line.startswith('\\'):
             document.body[i] = 
line.replace('(','\x00').replace(')','(').replace('\x00',')')
+        i += 1
 
 
 def revert_hebrew_parentheses(document):
-- 
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