When converting the given HTML 5.0 example to XWiki 2.1 using the rendering API, the last parenthesis of the text if (( before attributes given with (% ... %) is not escaped with ~, therefore the rendered XWiki 2.1 will be flawed. Also, the second parametrization is missing the style part. HTML 5.0 <span style="font-size: 12pt; font-family: Courier New, Courier New_MSFontService, monospace;">if ((</span><span style="font-size: 12pt; font-family: Courier New, Courier New_MSFontService, monospace;"><span class="SpellingError">depth_in_cm</span></span> Converted XWiki 2.1 (% style="font-size: 12pt; font-family: Courier New, Courier New_MSFontService, monospace;" %)if (((% class="SpellingError" %)depth_in_cm |