It appears Google Prettify doesn't like lex parser tags. I've added the following to a blog post that uses prettify to format code:
<!-- Content -->
<div id="content" class="grid_8 suffix_1">
{{ widgets:area slug="above-body" }}
{{ template:body }}
</div>
The two lines of lex code (in between the {{ }}) disappear in the post. If I change them to single brackets, they look OK. I assume prettify uses a similar sort of tagging syntax, which would explain this. Is there a way around it?