Vtyjkyuk

I am trying to make a document like this:

Since there's quite a lot of such sections, I want to make a new command like textwithline so I can then type

Author: textwithlineJoe ShmoeFirst name, Last name

This author's editor: textwithlineBilly WillyFirst name, Last name

in my document.

Note the important features:

• The line must fill all available remaining space


• The text above and below the line must be centered on the line


• The text on the left is variable length (or may be blank)

What is a good way of making such a command? I have tried:

• 
  tabular with hfill but it doesn't actually stretch the table


• 
  tabular* but it doesn't "give room" to the text on the left


• 
  minipage but that requires me to hard code width every time


• 
  ulinehfill Billy Willy hfillhfill First name, Last name hfill with centering but then text below line is not centered on the line, but on the page

documentclassarticle

newcommandtextwithline[2]%
setlengthparfillskip0pt%
hrulefill
raisebox5ptmakebox[0pt]#1%
raisebox-12ptmakebox[0pt]#2%
hrulefill
par
bigskip

begindocument



Author: textwithlineJoe ShmoeFirst name, Last name

This author's editor: textwithlineBilly WillyFirst name, Last name

enddocument

Here is an option using linegoal to calculate the remaining width of the line (given by linegoal).

documentclassarticle

usepackagelinegoal

newcommandtextwithline[2]%
 beginminipage[t]linegoal
 centeringstrut #1 \[-.7baselineskip]
 hrulefill \[-.1baselineskip]
 centeringsmallfootnotesize #2
 endminipagepar
 addvspace.5baselineskip


begindocument

Author: textwithlineJoe ShmoeFirst name, Last name

This author's editor: textwithlineBilly WillyFirst name, Last name

enddocument

Since linegoal uses a label-ref-like system (thanks to zref), any changes in width would require you to compile at least twice before the width settles.