Bug 141320 - [RTF] .rtf Rich Text: broken file error due to inserted formula
Summary: [RTF] .rtf Rich Text: broken file error due to inserted formula
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
4.3.0.4 release
Hardware: All All
: medium major
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: filter:rtf
Depends on:
Blocks: RTF Undo-Redo
  Show dependency treegraph
 
Reported: 2021-03-29 11:26 UTC by mail-bugzilla
Modified: 2024-11-20 17:11 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


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Description mail-bugzilla 2021-03-29 11:26:20 UTC
Description:
Using a formula in a Rich Text (.rtf) document can lead to a broken file. LibreOffice throws a File format error, when trying to open the document afterwards. The Reason seems to be, that under certain circumstances, a parenthesis mismatch is produced in the file, leaving an open parenthesis from the formula object in the rich text syntax (see reproduction steps below).

Steps to Reproduce:
1. Insert a formula (via Insert > Object > Formula)
2. Save document as RTF
3. Remove the formula using backspace
4. Undo the removal
5. Save and close document
6. Opening document throws file format error, due to syntax error in the file.

Actual Results:
File format error found at 19,7 /build/libreoffice-still/src/libreoffice-7.0.5.2/writerfilter/source/rtftok/rtfdocumentimpl.cxx:817(row,col).

Expected Results:
Keep the syntax intact.


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
Version: 7.0.5.2
Build ID: 00(Build:2)
CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: kf5
Locale: de-DE (en_GB.UTF-8); UI: en-GB
7.0.5-1
Calc: threaded
Comment 1 MM 2021-03-29 21:30:37 UTC
Confirmed on windows 10 x64 with Version: 7.0.5.2 (x64)
Build ID: 64390860c6cd0aca4beafafcfd84613dd9dfb63a
CPU threads: 12; OS: Windows 10.0 Build 19042; UI render: Skia/Raster; VCL: win

Wordpad however can open the file without a problem.
Comment 2 QA Administrators 2023-03-30 03:25:37 UTC Comment hidden (obsolete)
Comment 3 Buovjaga 2024-11-20 17:11:51 UTC
Already seen in 4.3. In older versions, it crashed either upon the first or second save.