Outputs <h4>Hello, <b>greetname!</b></h4>.
|X|demoCfgArgs:myTag or |X|demoCfgArgs:myTag:greetname directive in a
*.haxproj file,
{X|myTag|} or {X|myTag:greetname |}Early — this X-renderer does not require a page context for rendering: therefore many demoCfgArgs-invoking X-tags encountered during pre-templating (at start-up time) may be eagerly processed immediately in-place (for overall-reduced per-page processing loads).
This "verging on useless" X-renderer exists solely to serve as a code sample to start from when wanting to develop custom X-renderers within the HaXtatic code-base in Haskell.