It doesn't work correctly with Markdown

[MikeC-Cn]

If I use $(x,y)$,it will be rendered imath[/imath],not what it should be rendered like.

[the-turk]

This happens because we're replacing $...$ or any alias delimiter with their BBCode representation ([imath]...[/imath] for this case) on the fly.

See s9e/TextFormatter#167

While the TextFormatter lib owner thinking a solution for this, you can add a blank space after first delimiter as a work-around.

[the-turk]

from now on we're using explicitly paired BBCodes with numeric suffix being 0. Thus, any alias delimiter will be replaced with suffixed BBCodes (like [imath:0]...[/imath:0]) on the fly.