Textile is a default markup language of Instiki.
Document fragment linking | See also
This was used to set up the link list at the top of this page. It doesn’t appear to be documented anywhere – including either http://hobix.com/textile/quick.html or http://textism.com/tools/textile/ – and it’s very handy for writers who need to link from one place in a document to another part of the same document.
Footnote creation and linking is a similar idea, but it’s done differently from the method shown here, and isn’t really equivalent.
Here’s how to do it:
Do this:
This is a "link from here":#to_here h4(#to_here). To here
…to get this:
This is a link from here
One can link to a header, but also to a paragraph, like so (showing only the anchor):
p(#anchor). Paragraph text