Last modified: 2012-02-22 12:40:27 UTC
The overleftrightarrow is an ams-math function. However, Texvc treats it like it is a TeX function. For example, <math>\overleftrightarrow{AB}</math> will throw the error " Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert): \overleftrightarrow{A B} Whereas, <math>\mathit{i}\overleftrightarrow{AB}</math> works. I believe that the parser/tokenizer just needs to specify amsmath when it comes across \overleftrightarrow in the code. My workaround right now is dumb, such that I just force ams-math to be used in all latex processing.
http://www.mediawiki.org/wiki/Special:Code/MediaWiki/58933
Created attachment 6769 [details] A check for other broken commands The other commands that are still found by the test script are only listed because they are context-sensitive - with the exception of \cal and \bf, which seem to be part of the tokenizer, but not the parser. 648488a2946a4f3112bfeaf653e80ab0 @@ \limits b9e24e3904043fa24da642569a97ac5f @@ \nolimits 5f48c2734fafcb1ec3de8b818abb1e6c @@ \hline b9182c3919f2fd6c300ff250b06d26ae @@ \sideset S @@ \cal S @@ \bf S @@ \big S @@ \Big S @@ \bigg S @@ \Bigg S @@ \bigl S @@ \bigr S @@ \Bigl S @@ \Bigr S @@ \biggl S @@ \biggr S @@ \Biggl S @@ \Biggr 19f579d6a075ffa791abeb7cffcac76c @@ \color
