Any other text input field in Ubuntu allows me to press Ctrl+Shift+U and then type in a Unicode character code followed by Enter to get the special character. Trying to do so in RStudio doesn't work, it takes the character code as plain text instead.
I verified that some keyboard shortcut was mapped to Ctrl+Shift+U by default but disabling it didn't fix the issue.
Thanks for the bug report. IIUC, this is because we're not setting the Qt input method. Running RStudio with e.g.
export QT_IM_MODULE='ibus'
/usr/lib/rstudio/bin/rstudio
brings in this behavior. We'll see if there's a way we can discover the active input method and ensure that's respected within RStudio.
Calling
export -p
shows that
declare -x QT_IM_MODULE='ibus'
is already set up. I called the export command again to be sure but the problem remains.
Are you launching RStudio from your shell, or through another mechanism? RStudio Desktop doesn't launch R sessions through a shell and so won't read any environment variables set or exported in e.g. a .bash_profile.
I've tried launching from shell and the software app. The issue persists across all methods.