This Go module contains two extensions for the Markdown parser Goldmark providing super- and subscripts.

Similar to markdown-it the new markup characters are:

• The circumflex ^ for superscript

• The tilde ~ for subscript

We need to place one before and one after the text segment like H~2~O or x^2^.

No whitespace between the two surrounding markup characters is allowed. This way the common slip using TeX syntax like x^2 + x^5 does not lead to messed up HTML. In case we definitely want to insert space we need to place a non-breaking space—either directly or as the HTML entity  .