fix inline mathjax handling

[chrisbresten]

previously it was converting mathjax unsupported inline math delimiters $ to block math delimiters $$ which are not equivalent. here it instead converts inline math delim $ to the mathjax supported inline math delim \( \) which have the expected equivalent behavior

[pbodnar]

Hi @chrisbresten, thank you for the PR. I've got some suggestions and questions.

Also, there is this unit test https://github.com/miyuchina/mistletoe/blob/v1.2.1/test/test_contrib/test_mathjax.py which needs amendments, so that it doesn't newly fail. (BTW its testing markdown is pretty "artificial", I think it would deserve quite a rewrite - at minimum to use some "real" math expressions like 2^1 in it.)

[pbodnar]

@chrisbresten, would you like to finish the small "cosmetic modifications" as suggested above, or can I take it over? :)

[chrisbresten]

@chrisbresten, would you like to finish the small "cosmetic modifications" as suggested above, or can I take it over? :)

hi, i am sorry for the slow response. I am not that well versed in the style conventions and cleanliness standards for production in this context so i had kind of deferred to you implicitly. I should have stated this.

[chrisbresten]

i checked my local copy and found changes to unit tests to reflect the new behavior properly. I defer to you @pbodnar for any changes that help maintain standards and style consistent with the codebase at large

[coveralls]

coverage: 94.162% (+0.09%) from 94.073%
when pulling 62d8104 on chrisbresten:inline_mathjax
into 70e8e8d on miyuchina:master.

[pbodnar]

@chrisbresten, thanks once again. I did the final amendments and hopefully didn't break anything. ;)

[pbodnar]

BTW I have found this cool "cheatsheet" for the MathJax syntax: https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference/.

[chrisbresten]

BTW I have found this cool "cheatsheet" for the MathJax syntax: https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference/.

thankyou. I write a lot of latex and there can be a lot of variation in what kind of syntax people choose to use out of habbit. there are a lot of options for some functionality due to improvements manifesting as new commands in order to leave the old ones for backward compatibility. also a lot of packages people use so ubiquitously that they forget the corresponding functionality is not builtin. mathjax seems to do a good job at keeping a pulse on this and providing a math environment that is compliant with this implicit standard