\ProvidesFile{gost-numeric.bbx}
[2016/08/30\space v1.8\space biblatex-gost styles]

\RequireBibliographyStyle{gost-standard}
\ExecuteBibliographyOptions{labelnumber,bibisbn,biburl,bibdoi,bibeprint}

\providebool{bbx:subentry}

\DeclareBibliographyOption{subentry}[true]{%
  \setbool{bbx:subentry}{#1}}

\DeclareFieldFormat{bibentrysetcount}{\mkbibparens{\mknumalph{#1}}}
\DeclareFieldFormat{labelnumberwidth}{#1\addperiod}
\DeclareFieldFormat{shorthandwidth}{\mkbibbrackets{#1}}

\defbibenvironment{bibliography}
  {\list
     {\printtext[labelnumberwidth]{%
	\printfield{labelprefix}%
	\printfield{labelnumber}}}
     {\setlength{\labelwidth}{\labelnumberwidth}%
      \setlength{\leftmargin}{\labelwidth}%
      \setlength{\labelsep}{\biblabelsep}%
      \addtolength{\leftmargin}{\labelsep}%
      \setlength{\itemsep}{\bibitemsep}%
      \setlength{\parsep}{\bibparsep}}%
      \renewcommand*{\makelabel}[1]{\hss##1}}
  {\endlist}
  {\item}

\defbibenvironment{shorthand}
  {\list
     {\printfield[shorthandwidth]{shorthand}}
     {\setlength{\labelwidth}{\shorthandwidth}%
      \setlength{\leftmargin}{\labelwidth}%
      \setlength{\labelsep}{\biblabelsep}%
      \addtolength{\leftmargin}{\labelsep}%
      \setlength{\itemsep}{\bibitemsep}%
      \setlength{\parsep}{\bibparsep}%
      \renewcommand*{\makelabel}[1]{\hss##1}}}
  {\endlist}
  {\item}

\DeclareBibliographyDriver{set}{%
  \entryset
    {\ifbool{bbx:subentry}
       {\printfield[bibentrysetcount]{entrysetcount}%
	\printunit*{\addnbspace}}
       {}}
    {}%
  \newunit\newblock
  \usebibmacro{setpageref}%
  \finentry}

\endinput