Parse the arguments to a $formfield specification and extract
the relevant formfield from the given meta data.
Added:
> >
args string containing name of form field
In addition to the name of a field args can be appended with a commas
followed by a string format (\d+)([,\s*]\.\.\.)?). This supports the formatted
search function $formfield and is used to shorten the returned string or a
hyphenated string.