I'm trying to mesh Mustache Templating Engine with WordPress. So far, I have been very successful using the_content as a filter to parse my template tags e.g. {{ something }}.
However, if let’s say, a developer hardcodes the template tags directly into the page template e.g. loop-page, the_content doesn’t capture the hardcoded tags.
Is there a filter that will allow me to capture the content of the whole page template including the content?
WordPress does not concatenate the entire page into a string before printing it which is what would have to happen to "capture" the whole page template. Much of the page echos as it occurs-- think about template tags like the_content and the_title which don't return strings. The just echo them.
You'd have to use output buffering to do this. That is pretty easy if you are writing the template-- ob_start at the beginning or header.php and ob_get_contents (or ob_get_clean) at the end of footer.php. But there are no hooks specifically at those locations. You should be able to capture most of the page with ob_start on a wp_head filter and ob_get_contents on a wp_footer filters. I'd have to play with things to dial it in. There may be a slightly better hook for ob_start. I doubt there is a better one for ob_get_contents.
