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%% ---------------------------------------------------------------
%% biblatex-ieee --- A biblatex implementation of the IEEE 
%%   bibliography style
%% Maintained by Joseph Wright
%% E-mail: joseph.wright@morningstar2.co.uk
%% Released under the LaTeX Project Public License v1.3c or later
%% See http://www.latex-project.org/lppl.txt
%% ---------------------------------------------------------------
%% 

\ProvidesFile{ieee-alphabetic.bbx}[2020/08/31 v1.3c biblatex bibliography style]

\RequireBibliographyStyle{ieee}

% Alter settings that carry through from biblatex
\ExecuteBibliographyOptions{
  labelalpha,
  sorting = anyt,
  useprefix
}

% This is all a straight copy from alphabetic.bbx
\DeclareFieldFormat{labelalphawidth}{\mkbibbrackets{#1}}
\DeclareFieldFormat{shorthandwidth}{\mkbibbrackets{#1}}

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

\defbibenvironment{shorthands}
  {\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]{##1\hss}}}
  {\endlist}
  {\item}

%% 
%% Copyright (C) 2011-2013,2015-2020 by
%%   Joseph Wright <joseph.wright@morningstar2.co.uk>
%% 
%% It may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License (LPPL), either version 1.3c of
%% this license or (at your option) any later version.  The latest
%% version of this license is in the file:
%% 
%%    http://www.latex-project.org/lppl.txt
%% 
%% This work is "maintained" (as per LPPL maintenance status) by
%%   Joseph Wright.
%% 
%% This work consists of the files biblatex-ieee.bib,
%%                                 biblatex-ieee.tex,
%%                                 ieee.bbx,
%%                                 ieee.cbx,
%%                                 ieee-alphabetic.bbx,
%%                                 ieee-alphabetic.cbx and
%%                                 magyar-ieee.lbx,
%%           and the derived files biblatex-ieee.pdf and
%%                                 biblatex-ieee-alphabetic.pdf.
%% 
%%
%% End of file `ieee-alphabetic.bbx'.