Removing comma after shorthands in biblatex-chicago

Question

This is a follow-up question to a previous question I asked about "How to tweak volcite in biblatex-chicago to cite volume and page using Arabic numerals separated by a colon".

I would like to know if there is any way (when using a colon to separate volume and page references, but only when both a volume and a page are given) to further instruct biblatex-chicago to omit the comma between citation and volume/page number when both of the following conditions apply:

1. a shorthand field is being used (i.e., the bib entry has a non-empty shorthand field AND biblatex-chicago has been set up to use shorthands AND the conditions are such that this particular citation will in fact be using that shorthand)
2. both a volume and a page are indicated in the cite command (e.g., \volcite{5}[102]{CCAG:astrology})

MWE:

\documentclass{article}

\usepackage[notes]{biblatex-chicago}

\begin{filecontents*}{\jobname.bib}
@book{CCAG:astrology,
    Address = {Brussels},
    Date = {1898/1953},
    Editor = {Cumont, Franz},
    Title = {Catalogus codicum astrologorum graecorum},
    Shorthand = {\emph{CCAG}}}
\end{filecontents*}
\addbibresource{\jobname.bib}

% VOLCITE USING COLON (solution by David Purton)
\renewcommand*{\volcitedelim}{\addcolon}
\renewrobustcmd*{\mkvolcitenote}[2]{%
  \ifblank{#2}
    {\printtext[volcitevolume]{#1}}
    {\printtext{#1}\volcitedelim\printtext{#2}}}

\begin{document}
\volcite{5}[102]{CCAG:astrology}.\mancite

\volcite{5}[102]{CCAG:astrology}.
\end{document}

I would like the output of the second paragraph to be

CCAG 5:102.

instead of

CCAG, 5:102.

but would like everything else to remain the same.

Answer 1

Oooo. I did it!

Just don't ask me to explain how it works. It was basically trial and error.

It works with \volcite, \volcites and the various ibid related options.

It just won't work with something like \volcite{5}[102]{knuth:ct,CCAG:astrology}, but I think you are better served with using \volcites in this kind of case.

MWE

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@mvbook{CCAG:astrology,
  Address = {Brussels},
  Date = {1898/1953},
  Editor = {Cumont, Franz},
  Title = {Catalogus codicum astrologorum graecorum},
  Shorthand = {\emph{CCAG}}
}
\end{filecontents}

\usepackage[notes]{biblatex-chicago}
\addbibresource{biblatex-examples.bib}
\addbibresource{\jobname.bib}

\renewcommand*{\volcitedelim}{\addcolon}
\newcommand*{\volcitepostnotedelim}{\addcomma\space}

\renewrobustcmd*{\mkvolcitenote}[2]{%
  \ifblank{#2}
    {\printtext[volcitevolume]{#1}}
    {\printtext{#1}\volcitedelim\printtext{#2}}}

\makeatletter

\newtoggle{blx@use@volcitepostnotedelim}

\newrobustcmd*{\blx@setvolcitepostnotedelim}{%
  \renewcommand*{\volcitepostnotedelim}{\addcomma\space}%
  \iffieldundef{shorthand}
    {}
    {\iftoggle{cms@shorthandibid}
       {\ifthenelse{\ifciteibid\AND\NOT\iffirstonpage}
          {}
          {\ifboolexpr{
             not togl {cms@firstshort}
             and
             not test {\ifciteseen}
           }
             {}
             {\renewcommand*{\volcitepostnotedelim}{\addspace}}}}
       {\ifboolexpr{
         not togl {cms@firstshort}
         and
         not test {\ifciteseen}
        }
          {}
          {\renewcommand*{\volcitepostnotedelim}{\addspace}}}}%
  \iftoggle{blx@use@volcitepostnotedelim}
    {\renewcommand*{\postnotedelim}{\volcitepostnotedelim}}
    {}}

\renewrobustcmd*{\volcitecmd}{%
  \AtNextCite{\DeclareFieldAlias{postnote}{volcitenote}}%
  \AtNextCitekey{\blx@setvolcitepostnotedelim}%
  \begingroup\let\blx@citeargs\blx@volciteargs}

\long\def\blx@volciteargs@i#1[#2]#3{%
  \@ifnextchar[%]
    {\toggletrue{blx@use@volcitepostnotedelim}%
     \eappto\blx@tempe{\toggletrue{blx@use@volcitepostnotedelim}}%
     \blx@volciteargs@ii{#1}{#2}{#3}}
    {\togglefalse{blx@use@volcitepostnotedelim}%
     \eappto\blx@tempe{\togglefalse{blx@use@volcitepostnotedelim}}%
     \blx@citeargs@iii{#1{#2}{{#3}{}}}}}

\protected\def\blx@volmciteargs#1{%
  \eappto\blx@tempe{\AtNextCitekey{\blx@setvolcitepostnotedelim}}%
  \@ifnextchar[%]
    {\blx@volciteargs@i{#1}}
    {\blx@volciteargs@i{#1}[]}}

\makeatother

\begin{document}
\volcite{1}[50]{knuth:ct}.\mancite

\volcite{1--2}{knuth:ct}.

\volcite{5}[102]{CCAG:astrology}.

\volcite{5}[103]{CCAG:astrology}.

\volcite{5}{CCAG:astrology}.

\volcites{1}[50]{knuth:ct}{5}[102]{CCAG:astrology}.

\volcites{5}[102]{CCAG:astrology}{1}[50]{knuth:ct}.

\volcites{1}{knuth:ct}{5}{CCAG:astrology}.

\volcites{5}{CCAG:astrology}{1}{knuth:ct}.

\end{document}