As well as add new shortcodes for:
[ap_hashcats] - The post's categories as hashtags
[ap_image] - The URL for the post's featured image, full size
[ap_thumbnail] - The URL for the post's featured image thumbnail size
[ap_author] - The author's name
[ap_authorurl] - The URL to the author's profile page
[ap_date] - The post's date
[ap_time] - The post's time
[ap_datetime] - The post's date/time formated as "date @ time"
[ap_blogurl] - The URL to the site
[ap_blogname] - The name of the site
[ap_blogdesc] - The description of the site
The existing implementation crops at words and may return very short strings based upon filters, or very long strings based upon user inputted excerpts.
Make sure we never return a excerpt longer than we expect.
* Add leading \ before function invocation to speed up resolving.
* Add leading \ before constant invocation of internal constant to speed up resolving. Constant name match is case-sensitive, except for null, false and true.
