• Doctype is XHTML 1.0 Strict

  One consideration of course is that regular users might embed html that uses deprecated presentational elements like <center>. At least firefox seems to handle that mixture ok. --Joey

• [ [inlinepage] ] gets wrapped in <p>...</p> which has a high chance of invalidating the page.

  Since markdown does this, the only way I can think to fix it is to make the inlined page text start with </p> and end with <p>. Ugly, and of course there could be problems with markdown enclosing it in other spanning tags in some cases. I've implemented this hack now. --Joey

  I used this 'hack' myself, but yesterday I came up with a better idea:
  <div class="inlinepage">
  [ [inlinepage] ]
  </div>
  This prevents markdown enclosing and even adds a useful css identifier. Problem is that this should be added to every page and not in the template(s). --?JeroenSchot

  I can make ikiwiki add that around every inlined page easily enough. However, where is it documented? Came up dry on google. --Joey

  From http://daringfireball.net/projects/markdown/syntax#html:

  The only restrictions are that block-level HTML elements e.g. <div>, <table>, <pre>, <p>, etc. must be separated from surrounding content by blank lines, and the start and end tags of the block should not be indented with tabs or spaces. Markdown is smart enough not to add extra (unwanted) <p> tags around HTML block-level tags. [snip] Note that Markdown formatting syntax is not processed within block-level HTML tags. E.g., you can't use Markdown-style *emphasis* inside an HTML block.

  Because [ [inlinepage] ] isn't separated by a blank line it gets treated as a block-level element. Hmm, will this stop all formatting, including *'s to em-tags? --?JeroenSchot

  Ah didn't realize you meant it fixed it at the markdown level. I'll think about making postprocessor directives into preprocessor directives instead, then I could use that fix (but I'm not sure how feasible it is to do that). --Joey

  Done.. inlining is now a preprocessor directive, happens before markdown, and the inlinepage template uses div as suggested, this does prevent markdown from doing any annoying escaping of the preprocessor directives, as well as preventing it wrapping subpages in <p>. --Joey

This page is now valid. Test: validate this page

done