Feature - Support {.language .other-class } ... language tag syntax in Markdown

[volodymyrprokopyuk]

Hello,

Currently polymode supports only the ```language ... ``` language tag syntax to switch to the appropriate major mode for the language.

Pandoc markdown supports addition of HTML classes to a code block with the following syntax ```{.language .numbered} ... ```, which causes polymode to fall back to markdown major mode instead of switching to the appropriate language major mode.

Could you, please, extend polymode to support the Pandod markdown language class syntax?

Thank you!

[vspinu]

The {mode xyz} syntax is already supported. The issue was . in front of the class.

[volodymyrprokopyuk]

Hi,

The . dot is actually the point of the issue (name the language of a chunck with a .language class), not a typo.

When using ```{latext .numberLInes} ... ``` which is supported by polymode with correct latex highlighting in emacs, knitr reports the error of Unknown language engine `latex` .

When using the new requested language class syntax to be supported by polymode ```{.latext .numberLInes} ... ```, knitr forwards correctly the results to pandoc which correctly does syntax highlighting of the latex code. The only issue with this new syntax is that in emacs the code chunk is not highlighted as latex, because the language class syntax is not currently supported by polymode.