https://bugs.documentfoundation.org/show_bug.cgi?id=168506

            Bug ID: 168506
           Summary: Language detection does not work for many languages
           Product: LibreOffice
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Linguistic
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]

Created attachment 202926
  --> https://bugs.documentfoundation.org/attachment.cgi?id=202926&action=edit
List of 353 languages on Wikipedia written in their own language

Description:
If you copy plain text into LiberOffice (Writer, Calc, Impress), text from many
languages are not displayed correctly until you set the language manually.
Otherwise, even with a proper font it is not displayed correctly. For example,
try this text (Burmese):

မြန်မာဘာသာ

Steps to Reproduce:
1. Copy and paste the above text to LibreOffice Writer (or other applications)

Actual Results:
Bad rendering, even with a font that contains the glyphs. If you set the CTL
language to Burmese, the text is displayed correctly.

Expected Results:
Text should be displayed correctly. Even if the language is not set
automatically.


Reproducible: Always


User Profile Reset: No


Additional Info:
Wikipedia has a list of supported languages, which are 353 languages at the
moment. You can see the list by going to the main page, and clicking on "353
languages":

Wikipedia
https://en.wikipedia.org/wiki/Main_Page

These are basic representation of a sample text in these languages. I have
attached a text version of the list, which is displayed fine in a Unicode aware
text editor like Gedit (Linux) and Notepad (Windows). But for many language it
is rendered incorrectly in LibreOffice

Tested with:
Version: 25.8.1.1 (X86_64)
Build ID: 54047653041915e595ad4e45cccea684809c77b5
CPU threads: 12; OS: Linux 6.2; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded

Please not that on my machine the locale is en-US, and the default "Complex
text language" is set to Persian in "Tools > Options > Languages and Locales >
Default Languages for Documents".

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