The commands "`" and "~" are supposed to produce small and large gaps. However, they are currently exported to MathML as empty <mi> elements, which have zero width. I've prepared a patch to use the MathML element <mspace> instead and will submit it for review.
Created attachment 81264 [details] Sample output https://gerrit.libreoffice.org/#/c/4454/ Here is a page to compare the old and new MathML code. You can view it in Firefox.
Lets mark it as NEW then :-). Thanks for reporting and submitting a patch for it! Kind regards, Joren
Marking these bugs assigned since I've already taken them.
Frederic Wang committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=1418694edad8720dcd4884fd3e759c05a1f4cae9 fdo#66075 - Formula editor: export blanks as MathML <mspace> elements. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
I think this bug can be closed?
Of course it can :). _o_ thank you