Description: The equation "M^{+}" does not get displayed properly in LibreOffice 6.0 and 5.4. Steps to Reproduce: 1.Open new document 2.Create new equation with the following text: "M^{+}" Actual Results: The document displays "M" followed by the superscript "+¿" (ie. + followed by an inverted question mark) Expected Results: The display should show "M" followed by the superscript "+" Reproducible: Always User Profile Reset: Yes OpenGL enabled: Yes Additional Info: The following equation text displays properly: "M^{+1}" User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36
Created attachment 140391 [details] equation display error example
Hi, I reproduce with LO 6.0.2.1 Build ID: f7f06a8f319e4b62f9bc5095aa112a65d2f3ac89 Threads CPU : 2; OS : Windows 6.1; UI Render : par défaut; Locale : fr-FR (fr_FR); Calc: CL also with LO 3.5.3.2 Version ID : 235ab8a-3802056-4a8fed3-2d66ea8-e241b80 so probablly inherited from OOo. Suggestion : M^+{} but this is only a workaround.
The inverted "?" shows LO expects something after the "+". I don't know the Math syntax but are we sure it's a bug? Is there some official doc?
This help page: https://help.libreoffice.org/6.4/en-US/text/smath/01/03091200.html?&DbPAR=WRITER&System=UNIX Only shows examples of numbers being used in the exponent, but it doesn't explicitly list a specific set of allowed or disallowed characters.
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Bug still present in LibreOffice 7.3.4.2 Version: 7.3.4.2 / LibreOffice Community Build ID: 30(Build:2) CPU threads: 88; OS: Linux 5.18; UI render: default; VCL: kf5 (cairo+xcb) Locale: en-US (en_US.UTF-8); UI: en-US 7.3.4-2 Calc: CL
(In reply to Julien Nabet from comment #3) > The inverted "?" shows LO expects something after the "+". > I don't know the Math syntax but are we sure it's a bug? Is there some > official doc? FWIW all binary operators (+, -, *, /) have this problem of generating inverted "?" when used alone as superscript (+ and - are also unary operators, so the workaround M^{+{}} works, for * and / one has to use M^{{}*{}}). I would say that's just the way LO Math works due to lack of escape character.