\ProvidesFile{software.bbx}[2022/08/01 bibliography driver extension for software entries, Roberto Di Cosmo]
%
% Reference implementation of a BibLaTeX style for the software family of bibliographic entries
%
% 2020 - 2022 Roberto Di Cosmo <roberto@dicosmo.org>
%
\RequireBiber[3]
\RequirePackage{xurl}
%
% Toggles for typesetting additional ids and printing labels
%
\newtoggle{bbx:halid}
\newtoggle{bbx:swhid}
\newtoggle{bbx:shortswhid}
\newtoggle{bbx:vcs}
\newtoggle{bbx:swlabels}
\newtoggle{bbx:license}
\newtoggle{bbx:addendum}
\newtoggle{bbx:crossrefexpansion}
\newtoggle{bbx:parentcited}
\newtoggle{bbx:institutionequal}
\newtoggle{bbx:swhidequal}
\newtoggle{bbx:repositoryequal}
\newtoggle{bbx:introducedinequal}
\newtoggle{bbx:swhidprinted}
\newtoggle{bbx:repositoryprinted}
\newsavebox{\bbx@tempbox}
\newsavebox{\bbx@tempboxb}
\newsavebox{\bbx@tempboxc}
\newsavebox{\bbx@tempboxd}



\DeclareBibliographyOption[boolean]{halid}[true]{%
  \settoggle{bbx:halid}{#1}}
\DeclareBibliographyOption[boolean]{swhid}[true]{%
  \settoggle{bbx:swhid}{#1}}
\DeclareBibliographyOption[boolean]{shortswhid}[false]{%
  \settoggle{bbx:shortswhid}{#1}}
\DeclareBibliographyOption[boolean]{swlabels}[true]{%
  \settoggle{bbx:swlabels}{#1}}
\DeclareBibliographyOption[boolean]{vcs}[true]{%
  \settoggle{bbx:vcs}{#1}}
\DeclareBibliographyOption[boolean]{license}[true]{%
  \settoggle{bbx:license}{#1}}
\DeclareBibliographyOption[boolean]{addendum}[true]{%
  \settoggle{bbx:addendum}{#1}}
\DeclareBibliographyOption{crossrefexpansion}[verbose]{%
  \ifstrequal{#1}{conditional}{%
    \settoggle{bbx:crossrefexpansion}{true}%
  }{%
    \settoggle{bbx:crossrefexpansion}{false}%
  }%
}

\ExecuteBibliographyOptions{halid,swhid,shortswhid,swlabels,vcs,license,addendum,crossrefexpansion}

%
% Declare inheritance rules (valid only in LaTeX preamble!)
%
\DeclareDataInheritance{software}{softwareversion,softwaremodule,codefragment}{\inherit{*}{*}}
\DeclareDataInheritance{softwareversion}{softwaremodule,codefragment}{\inherit{*}{*}}
\DeclareDataInheritance{softwaremodule}{codefragment}{\inherit{*}{*}}

%
% Localization
%
\DeclareLanguageMapping{english}{english-software}
\DeclareLanguageMapping{french}{french-software}

%
% Macros
%

%
% Notice the use of \edef to force expansion of the macro parameters before calling \nolinkurl
%
\newbibmacro*{swurl+urldate}{%
  \mkbibacro{URL}\addcolon\addspace%
     \ifhyperref%
        {\href{\strfield{url}}{\nolinkurl{\strfield{url}}}}%
        {\edef\temp{\noexpand\nolinkurl{\strfield{url}}}\temp}%
  \iffieldundef{urlyear}%
    {}%
    {\setunit*{\addspace}%
     \usebibmacro{urldate}}}

%
% Support multiline SWHIDs and create swhidcore field from swhid if missing
%
\DeclareStyleSourcemap{
  \maps[datatype=bibtex,overwrite=true]{
    \map{
      \step[fieldsource=swhid, match=\regexp{\s}, replace={}]
    }
    \map{
      \step[fieldsource=swhid]
      \step[fieldset=swhidcore, origfieldval]
      \step[fieldsource=swhidcore, match=\regexp{;.*}, replace={}]
    }
  }
}

%
% Formatting fields for the software entries
%

\DeclareFieldFormat[softwaremodule,codefragment]{subtitle}{\mkbibquote{#1\isdot}}
\DeclareFieldFormat[software,softwareversion,softwaremodule,codefragment]{url}{
  \iftoggle{bbx:url}%
	   {\usebibmacro{swurl+urldate}}
           {}%
}
\DeclareFieldFormat[software,softwareversion,softwaremodule,codefragment]{hal_id}{
  \iftoggle{bbx:halid}%
           {\mkbibacro{HAL}\addcolon\addspace%
             \ifhyperref%
                 {\href{https://hal.archives-ouvertes.fr/#1\thefield{hal_version}}{\(\langle\)\nolinkurl{#1\thefield{hal_version}}\(\rangle\)}}%
                 {\(\langle\)\nolinkurl{#1}\thefield{hal_version}\(\rangle\)}%
           }%
           {}%
}

%
% Notice the use of \edef to force expansion of the macro parameters before calling \nolinkurl
%
\DeclareFieldFormat[software,softwareversion,softwaremodule,codefragment]{swhid}{%
  \iftoggle{bbx:swhid}%
           {\mkbibacro{SWHID}\addcolon\addspace%
             \ifhyperref%
                 {\href{http://archive.softwareheritage.org/#1}{\(\langle\)\nolinkurl{%
  		    \iftoggle{bbx:shortswhid}{\thefield{swhidcore}}{#1}%
		    }\(\rangle\)}}%
                 {\(\langle\){\edef\temp{\noexpand\nolinkurl{%
  		    \iftoggle{bbx:shortswhid}{\thefield{swhidcore}}{#1}%
		    }}\temp}\(\rangle\)}%
           }%
           {}%
}
\DeclareFieldFormat[software,softwareversion,softwaremodule,codefragment]{repository}{%
  \iftoggle{bbx:vcs}%
           {\mkbibacro{VCS}\addcolon\addspace%
               \ifhyperref%
                   {\href{#1}{\nolinkurl{#1}}}%
                   {\nolinkurl{#1}}%
           }%
           {}%
}
\DeclareListFormat[software,softwareversion,softwaremodule,codefragment]{license}{%
  \usebibmacro{list:delim}{#1}%
  #1\isdot
  \usebibmacro{list:andothers}}

%
% Add here special eprint formats
%

%
% ASCL
%
\DeclareFieldFormat{eprint:ascl}{%
 \mkbibacro{ASCL}\addcolon\addspace%
  \ifhyperref
    {\href{https://ascl.net/#1}{%
         \(\langle\)ascl\addcolon\nolinkurl{#1}\(\rangle\)%
       \iffieldundef{eprintclass}
         {}
         {\addspace\texttt{\mkbibbrackets{\thefield{eprintclass}}}}}}
    {\(\langle\)ascl\addcolon\nolinkurl{#1}\(\rangle\)%
     \iffieldundef{eprintclass}
       {}
       {\addspace\texttt{\mkbibbrackets{\thefield{eprintclass}}}}}
}

%
% swMATH
%
\DeclareFieldFormat{eprint:swmath}{%
 \mkbibacro{SWMATH}\addcolon\addspace%
  \ifhyperref
    {\href{https://www.zbmath.org/software/#1}{%
         \(\langle\)swmath\addcolon\nolinkurl{#1}\(\rangle\)%
       \iffieldundef{eprintclass}
         {}
         {\addspace\texttt{\mkbibbrackets{\thefield{eprintclass}}}}}}
    {\(\langle\)swmath\addcolon\nolinkurl{#1}\(\rangle\)%
     \iffieldundef{eprintclass}
       {}
       {\addspace\texttt{\mkbibbrackets{\thefield{eprintclass}}}}}
}

%
% Macros to format output
%

%
% Field comparison macros for crossref handling
% These macros use official biblatex commands for field comparison:
% - \savefield, \savelist, \savename for saving field values
% - \iffieldequals, \iflistequals, \ifnameequals for comparison
% See biblatex documentation for details on these commands.
%

% Toggles to store field comparison results
\newtoggle{bbx:titleequal}
\newtoggle{bbx:versionequal}
\newtoggle{bbx:editorequal}
\newtoggle{bbx:dateequal}
\newtoggle{bbx:authorequal}
\newtoggle{bbx:urlequal}
\newtoggle{bbx:halidequal}
\newtoggle{bbx:licenseequal}

% Specific field comparison macros
% Compare title field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checktitleequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:titleequal}{false}}%
    {% Compare title - actually compare field values
     \iffieldundef{title}%
       {% Child has no explicit title - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{title}%
            {\global\settoggle{bbx:titleequal}{true}}%
            {\global\settoggle{bbx:titleequal}{false}}%
        }%
       }%
       {% Child has title - compare actual values using official biblatex commands
        \savefield{title}{\bbx@childtitle}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{title}%
            {\global\settoggle{bbx:titleequal}{false}}%
            {% Both have title - compare using \iffieldequals
             \iffieldequals{title}{\bbx@childtitle}%
               {\global\settoggle{bbx:titleequal}{true}}%
               {\global\settoggle{bbx:titleequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare version field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkversionequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:versionequal}{false}}%
    {% Compare version - actually compare field values
     \iffieldundef{version}%
       {% Version not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{version}%
            {\global\settoggle{bbx:versionequal}{true}}%
            {\global\settoggle{bbx:versionequal}{false}}%
        }%
       }%
       {% Version explicitly set - compare actual values using official biblatex commands
        \savefield{version}{\bbx@childversion}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{version}%
            {\global\settoggle{bbx:versionequal}{false}}%
            {% Both have version - compare using \iffieldequals
             \iffieldequals{version}{\bbx@childversion}%
               {\global\settoggle{bbx:versionequal}{true}}%
               {\global\settoggle{bbx:versionequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare editor field with parent entry (name list)
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savename and \ifnameequals
\newbibmacro*{checkeditorequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:editorequal}{false}}%
    {% Compare editor - actually compare name list values
     \ifnameundef{editor}%
       {% Editor not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \ifnameundef{editor}%
            {\global\settoggle{bbx:editorequal}{true}}%
            {\global\settoggle{bbx:editorequal}{false}}%
        }%
       }%
       {% Editor explicitly set - compare actual values using official biblatex commands
        \savename{editor}{\bbx@childeditor}%
        \entrydata*{\strfield{crossref}}{%
          \ifnameundef{editor}%
            {\global\settoggle{bbx:editorequal}{false}}%
            {% Both have editor - compare using \ifnameequals
             \ifnameequals{editor}{\bbx@childeditor}%
               {\global\settoggle{bbx:editorequal}{true}}%
               {\global\settoggle{bbx:editorequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare date field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% NOTE: BibLaTeX stores dates as year, month, day fields, not a date field
% So we need to check and compare these components
\newbibmacro*{checkdateequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:dateequal}{false}}%
    {% Compare date - actually compare date values
     % Check if child has any date components (year, month, day)
     \iffieldundef{year}%
       {% Child has no year - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{year}%
            {\global\settoggle{bbx:dateequal}{true}}%
            {\global\settoggle{bbx:dateequal}{false}}%
        }%
       }%
       {% Child has year - compare date components
        % Capture child date components BEFORE entering entrydata
        % Strategy: tempbox=child year, tempboxb=child month (if exists), tempboxc=child day (if exists), tempboxd=spare
        \savebox{\bbx@tempbox}{\strfield{year}}%
        \iffieldundef{month}%
          {\def\bbx@childhasmonth{0}}%
          {\def\bbx@childhasmonth{1}%
           \savebox{\bbx@tempboxb}{\strfield{month}}%
          }%
        \iffieldundef{day}%
          {\def\bbx@childhasday{0}}%
          {\def\bbx@childhasday{1}%
           \savebox{\bbx@tempboxc}{\strfield{day}}%
          }%
        % Get parent date INSIDE entrydata and compare
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{year}%
            {\global\settoggle{bbx:dateequal}{false}}%
            {% Both have year - compare components
             % Compare year: child year (tempbox) vs parent year (save in tempboxd)
             \savebox{\bbx@tempboxd}{\strfield{year}}%
             \expandafter\ifstrequal\expandafter{\usebox{\bbx@tempbox}}{\usebox{\bbx@tempboxd}}%
               {% Years equal - check month
                \ifnum\bbx@childhasmonth=0%
                  {% Child has no month - check if parent has month
                   \iffieldundef{month}%
                     {% Both have no month - check day
                      \ifnum\bbx@childhasday=0%
                        {% Child has no day - check if parent has day
                         \iffieldundef{day}%
                           {\global\settoggle{bbx:dateequal}{true}}%
                           {\global\settoggle{bbx:dateequal}{false}}%
                        }%
                        {% Child has day - parent must have same day
                         \iffieldundef{day}%
                           {\global\settoggle{bbx:dateequal}{false}}%
                           {% Both have day - compare: child day (tempboxc) vs parent day (save in tempboxd)
                            \savebox{\bbx@tempboxd}{\strfield{day}}%
                            \expandafter\ifstrequal\expandafter{\usebox{\bbx@tempboxc}}{\usebox{\bbx@tempboxd}}%
                              {\global\settoggle{bbx:dateequal}{true}}%
                              {\global\settoggle{bbx:dateequal}{false}}%
                           }%
                        }%
                      }%
                  }%
                  {% Child has month - parent must have same month
                   \iffieldundef{month}%
                     {\global\settoggle{bbx:dateequal}{false}}%
                     {% Both have month - compare: child month (tempboxb) vs parent month (save in tempboxd)
                      \savebox{\bbx@tempboxd}{\strfield{month}}%
                      \expandafter\ifstrequal\expandafter{\usebox{\bbx@tempboxb}}{\usebox{\bbx@tempboxd}}%
                        {% Months equal - check day
                         \ifnum\bbx@childhasday=0%
                           {% Child has no day - check if parent has day
                            \iffieldundef{day}%
                              {\global\settoggle{bbx:dateequal}{true}}%
                              {\global\settoggle{bbx:dateequal}{false}}%
                           }%
                           {% Child has day - parent must have same day
                            \iffieldundef{day}%
                              {\global\settoggle{bbx:dateequal}{false}}%
                              {% Both have day - compare: child day (tempboxc) vs parent day (save in tempboxd)
                               \savebox{\bbx@tempboxd}{\strfield{day}}%
                               \expandafter\ifstrequal\expandafter{\usebox{\bbx@tempboxc}}{\usebox{\bbx@tempboxd}}%
                                 {\global\settoggle{bbx:dateequal}{true}}%
                                 {\global\settoggle{bbx:dateequal}{false}}%
                              }%
                           }%
                        }%
                        {% Months differ
                         \global\settoggle{bbx:dateequal}{false}}%
                     }%
                  }%
               }%
               {% Years differ
                \global\settoggle{bbx:dateequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare author field with parent entry (name list)
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savename and \ifnameequals
\newbibmacro*{checkauthorequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:authorequal}{false}}%
    {% Compare author - actually compare name list values
     \ifnameundef{author}%
       {% Author not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \ifnameundef{author}%
            {\global\settoggle{bbx:authorequal}{true}}%
            {\global\settoggle{bbx:authorequal}{false}}%
        }%
       }%
       {% Author explicitly set - compare actual values using official biblatex commands
        \savename{author}{\bbx@childauthor}%
        \entrydata*{\strfield{crossref}}{%
          \ifnameundef{author}%
            {\global\settoggle{bbx:authorequal}{false}}%
            {% Both have author - compare using \ifnameequals
             \ifnameequals{author}{\bbx@childauthor}%
               {\global\settoggle{bbx:authorequal}{true}}%
               {\global\settoggle{bbx:authorequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare institution field with parent
% Uses official biblatex commands: \savelist and \iflistequals
\newbibmacro*{checkinstitutionequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:institutionequal}{false}}%
    {% Compare institution - actually compare list values
     \iflistundef{institution}%
       {% Institution not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iflistundef{institution}%
            {\global\settoggle{bbx:institutionequal}{true}}%
            {\global\settoggle{bbx:institutionequal}{false}}%
        }%
       }%
       {% Institution explicitly set - compare actual values using official biblatex commands
        \savelist{institution}{\bbx@childinstitution}%
        \entrydata*{\strfield{crossref}}{%
          \iflistundef{institution}%
            {\global\settoggle{bbx:institutionequal}{false}}%
            {% Both have institution - compare using \iflistequals
             \iflistequals{institution}{\bbx@childinstitution}%
               {\global\settoggle{bbx:institutionequal}{true}}%
               {\global\settoggle{bbx:institutionequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare swhid field with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkswhidequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:swhidequal}{true}}%
    {% Compare swhid - actually compare field values
     \iffieldundef{swhid}%
       {% SWHID not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{swhid}%
            {\global\settoggle{bbx:swhidequal}{true}}%
            {\global\settoggle{bbx:swhidequal}{false}}%
        }%
       }%
       {% SWHID explicitly set - compare actual values using official biblatex commands
        \savefield{swhid}{\bbx@childswhid}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{swhid}%
            {\global\settoggle{bbx:swhidequal}{false}}%
            {% Both have swhid - compare using \iffieldequals
             \iffieldequals{swhid}{\bbx@childswhid}%
               {\global\settoggle{bbx:swhidequal}{true}}%
               {\global\settoggle{bbx:swhidequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare repository field with parent (vcs)
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkrepositoryequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:repositoryequal}{true}}%
    {% Compare repository - actually compare field values
     \iffieldundef{repository}%
       {% Repository not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{repository}%
            {\global\settoggle{bbx:repositoryequal}{true}}%
            {\global\settoggle{bbx:repositoryequal}{false}}%
        }%
       }%
       {% Repository explicitly set - compare actual values using official biblatex commands
        \savefield{repository}{\bbx@childrepository}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{repository}%
            {\global\settoggle{bbx:repositoryequal}{false}}%
            {% Both have repository - compare using \iffieldequals
             \iffieldequals{repository}{\bbx@childrepository}%
               {\global\settoggle{bbx:repositoryequal}{true}}%
               {\global\settoggle{bbx:repositoryequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare url field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkurlequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:urlequal}{false}}%
    {% Compare url - actually compare field values
     \iffieldundef{url}%
       {% URL not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{url}%
            {\global\settoggle{bbx:urlequal}{true}}%
            {\global\settoggle{bbx:urlequal}{false}}%
        }%
       }%
       {% URL explicitly set - compare actual values using official biblatex commands
        \savefield{url}{\bbx@childurl}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{url}%
            {\global\settoggle{bbx:urlequal}{false}}%
            {% Both have url - compare using \iffieldequals
             \iffieldequals{url}{\bbx@childurl}%
               {\global\settoggle{bbx:urlequal}{true}}%
               {\global\settoggle{bbx:urlequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare introducedin field with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkintroducedinequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:introducedinequal}{true}}%
    {% Compare introducedin - actually compare field values
     \iffieldundef{introducedin}%
       {% Introducedin not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{introducedin}%
            {\global\settoggle{bbx:introducedinequal}{true}}%
            {\global\settoggle{bbx:introducedinequal}{false}}%
        }%
       }%
       {% Introducedin explicitly set - compare actual values using official biblatex commands
        \savefield{introducedin}{\bbx@childintroducedin}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{introducedin}%
            {\global\settoggle{bbx:introducedinequal}{false}}%
            {% Both have introducedin - compare using \iffieldequals
             \iffieldequals{introducedin}{\bbx@childintroducedin}%
               {\global\settoggle{bbx:introducedinequal}{true}}%
               {\global\settoggle{bbx:introducedinequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare hal_id field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savefield and \iffieldequals
\newbibmacro*{checkhalidequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:halidequal}{false}}%
    {% Compare hal_id - actually compare field values
     \iffieldundef{hal_id}%
       {% HAL ID not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{hal_id}%
            {\global\settoggle{bbx:halidequal}{true}}%
            {\global\settoggle{bbx:halidequal}{false}}%
        }%
       }%
       {% HAL ID explicitly set - compare actual values using official biblatex commands
        \savefield{hal_id}{\bbx@childhalid}%
        \entrydata*{\strfield{crossref}}{%
          \iffieldundef{hal_id}%
            {\global\settoggle{bbx:halidequal}{false}}%
            {% Both have hal_id - compare using \iffieldequals
             \iffieldequals{hal_id}{\bbx@childhalid}%
               {\global\settoggle{bbx:halidequal}{true}}%
               {\global\settoggle{bbx:halidequal}{false}}%
            }%
        }%
       }%
    }%
}

% Compare license field with parent entry
% Compare actual field values (whether inherited or explicit) with parent
% Uses official biblatex commands: \savelist and \iflistequals
\newbibmacro*{checklicenseequal}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:licenseequal}{false}}%
    {% Compare license - actually compare list values
     \iflistundef{license}%
       {% License not explicitly set - inherited, so equal
        \entrydata*{\strfield{crossref}}{%
          \iflistundef{license}%
            {\global\settoggle{bbx:licenseequal}{true}}%
            {\global\settoggle{bbx:licenseequal}{false}}%
        }%
       }%
       {% License explicitly set - compare actual values using official biblatex commands
        \savelist{license}{\bbx@childlicense}%
        \entrydata*{\strfield{crossref}}{%
          \iflistundef{license}%
            {\global\settoggle{bbx:licenseequal}{false}}%
            {% Both have license - compare using \iflistequals
             \iflistequals{license}{\bbx@childlicense}%
               {\global\settoggle{bbx:licenseequal}{true}}%
               {\global\settoggle{bbx:licenseequal}{false}}%
            }%
        }%
       }%
    }%
}

% Run all field comparisons
\newbibmacro*{checkallfields}{%
  \usebibmacro{checktitleequal}%
  \usebibmacro{checkversionequal}%
  \usebibmacro{checkeditorequal}%
  \usebibmacro{checkdateequal}%
  \usebibmacro{checkauthorequal}%
  \usebibmacro{checkinstitutionequal}%
  \usebibmacro{checkswhidequal}%
  \usebibmacro{checkrepositoryequal}%
  \usebibmacro{checkintroducedinequal}%
  \usebibmacro{checkurlequal}%
  \usebibmacro{checkhalidequal}%
  \usebibmacro{checklicenseequal}%
}

%
% Print crossref citation (proper biblatex mechanism for bibliography context)
%
\newbibmacro*{printcrossrefcitation}{%
  \iffieldundef{crossref}%
    {}%
    {\entrydata{\strfield{crossref}}{%
       \printtext[bibhyperref]{\mkbibbrackets{\printfield{labelnumber}}}}%
    }%
}

%
% Check if parent entry is cited/present in bibliography
% We use \ifciteseen to check if the parent entry has been cited
%
\newbibmacro*{checkparentcited}{%
  \iffieldundef{crossref}%
    {\settoggle{bbx:parentcited}{false}}%
    {\ifciteseen{\strfield{crossref}}%
      {\settoggle{bbx:parentcited}{true}}%
      {\settoggle{bbx:parentcited}{false}}%
    }%
}

%
% Ultra-concise format macros for each entry type
% Used when parent is cited and all key fields (author, title, institution) are equal
%

% Ultra-concise format for softwareversion entries
% Shows: version (if differs), date (if differs), entry-specific fields, parent reference
%
\newbibmacro*{ultraconcise+softwareversion}{%
  \usebibmacro{checkversionequal}%
  \usebibmacro{checkdateequal}%
  % Print version if it exists and differs from parent
  \iffieldundef{version}{%
    % No version - check date
    \iftoggle{bbx:dateequal}{%
      % No version, date same - just parent reference
      \usebibmacro{printcrossrefcitation}%
    }{%
      % No version, date differs - show date + parent reference
      \printdate\addspace%
      \printtext{of}\addspace%
      \usebibmacro{printcrossrefcitation}%
    }%
  }{%
    % Version exists - check if it differs
    \iftoggle{bbx:versionequal}{%
      % Version same - check date
      \iftoggle{bbx:dateequal}{%
        % Version same, date same - just parent reference
        \usebibmacro{printcrossrefcitation}%
      }{%
        % Version same, date differs - show date + parent reference
        \printdate\addspace%
        \printtext{of}\addspace%
        \usebibmacro{printcrossrefcitation}%
      }%
    }{%
      % Version differs - show version
      \printtext{Version}\addspace%
      \thefield{version}%
      % Check if date also differs
      \iftoggle{bbx:dateequal}{%
        % Date same - just add "of"
        \addspace\printtext{of}\addspace%
        \usebibmacro{printcrossrefcitation}%
      }{%
        % Date differs - show date before "of"
        \setunit{\addcomma\addspace}%
        \printdate\addspace%
        \printtext{of}\addspace%
        \usebibmacro{printcrossrefcitation}%
      }%
    }%
  }%
  % Print entry-specific fields (swhid, repository, introducedin) if they differ
  \usebibmacro{printentryspecificfields}%
}

% Ultra-concise format for softwaremodule entries
% Shows: subtitle (always), date (if differs), entry-specific fields, parent reference
% Note: subtitle is always different for modules, so we always show it
%
\newbibmacro*{ultraconcise+softwaremodule}{%
  \usebibmacro{checkdateequal}%
  % Always show subtitle for modules
  \printfield{subtitle}%
  % Check if date differs
  \iftoggle{bbx:dateequal}{%
    % Date same - just add "from"
    \setunit{\addcomma\addspace}%
    \bibstring{swpartof}\addspace%
    \usebibmacro{printcrossrefcitation}%
  }{%
    % Date differs - show date before "from"
    \setunit{\addcomma\addspace}%
    \printdate\addspace%
    \bibstring{swpartof}\addspace%
    \usebibmacro{printcrossrefcitation}%
  }%
  % Print entry-specific fields (swhid, repository, introducedin) if they differ
  \usebibmacro{printentryspecificfields}%
}

% Ultra-concise format for codefragment entries
% Shows: subtitle (always), date (if differs), entry-specific fields, parent reference
% Note: codefragment entries DO NOT have version, so we never show it
%
\newbibmacro*{ultraconcise+codefragment}{%
  \usebibmacro{checkdateequal}%
  % Always show subtitle for fragments
  \printfield{subtitle}%
  % Check if date differs
  \iftoggle{bbx:dateequal}{%
    % Date same - just add "from"
    \setunit{\addcomma\addspace}%
    \bibstring{swexc}\addspace%
    \usebibmacro{printcrossrefcitation}%
  }{%
    % Date differs - show date before "from"
    \setunit{\addcomma\addspace}%
    \printdate\addspace%
    \bibstring{swexc}\addspace%
    \usebibmacro{printcrossrefcitation}%
  }%
  % Print entry-specific fields (swhid, repository, introducedin) if they differ
  \usebibmacro{printentryspecificfields}%
}

% Backward compatibility: old macro name redirects to softwareversion
% Note: \let doesn't work with + in macro names, so we define a wrapper instead
\newbibmacro*{ultraconcise+version+date}{%
  \usebibmacro{ultraconcise+softwareversion}%
}

%
% Warn about duplicate entries (all fields equal to parent)
%
\newbibmacro*{warnduplicateentry}{%
  \iffieldundef{crossref}%
    {}%
    {\blx@warning{%
      Entry has identical fields as its crossref parent '\strfield{crossref}'%
      \MessageBreak%
      generating duplicated bibliography references, review and fix your citations%
    }}%
}

%
% Print entry-specific fields (swhid, repository/vcs, introducedin)
% Only shows fields that differ from parent or are entry-specific
%
\newbibmacro*{printentryspecificfields}{%
  \usebibmacro{checkswhidequal}%
  \usebibmacro{checkrepositoryequal}%
  \usebibmacro{checkintroducedinequal}%
  % Reset printed flags at start
  \global\settoggle{bbx:swhidprinted}{false}%
  \global\settoggle{bbx:repositoryprinted}{false}%
  % Print swhid if enabled and differs from parent
  \iftoggle{bbx:swhid}{%
    \iffieldundef{swhid}{}{%
      \iftoggle{bbx:swhidequal}{}{%
        \setunit{\addcomma\addspace}%
        \printfield{swhid}%
        \global\settoggle{bbx:swhidprinted}{true}%
      }%
    }%
  }{}%
  % Print repository/vcs if enabled and differs from parent
  \iftoggle{bbx:vcs}{%
    \iffieldundef{repository}{}{%
      \iftoggle{bbx:repositoryequal}{}{%
        \setunit{\addcomma\addspace}%
        \printfield{repository}%
        \global\settoggle{bbx:repositoryprinted}{true}%
      }%
    }%
  }{}%
  % Print introducedin if exists and differs from parent
  \iffieldundef{introducedin}{}{%
    \iftoggle{bbx:introducedinequal}{}{%
      \setunit{\addcomma\addspace}%
      \printfield{introducedin}%
    }%
  }%
}

%
% Common macro for title, version, editor and date
%

\newbibmacro*{tit+ver+ed+date}{%
  \iffieldundef{crossref}{%
    % No crossref: print all fields as before
    \printfield{title}\addspace%
    \printfield{version}\addspace%
    \ifnameundef{editor}%
      {}
      {\printtext[parens]{%
          \bibstring{edited}\addspace%
          \printnames{editor}}}%
    \setunit*{\addcomma\addspace}%
    \printdate%
    \setunit{\addspace}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check fields and use minimal/ultra-concise format
        \usebibmacro{checkallfields}%
        % Check if all key fields are equal
        \ifboolexpr{%
          test {\iftoggle{bbx:titleequal}}%
          and
          test {\iftoggle{bbx:authorequal}}%
          and
          test {\iftoggle{bbx:institutionequal}}%
          and
          test {\iftoggle{bbx:editorequal}}%
        }{%
          % All key fields equal - use ultra-concise format (handled by driver)
          % This macro will be called but output is minimal
          \usebibmacro{ultraconcise+version+date}%
        }{%
          % Some fields differ - use minimal format
          \iftoggle{bbx:versionequal}{%
            % Version same, but other fields differ
            \iftoggle{bbx:titleequal}{}{%
              \printfield{title}\addspace%
            }%
            \ifnameundef{editor}{}{%
              \iftoggle{bbx:editorequal}{}{%
                \printtext[parens]{%
                  \bibstring{edited}\addspace%
                  \printnames{editor}}%
                \setunit*{\addcomma\addspace}%
              }%
            }%
            \iftoggle{bbx:dateequal}{}{%
              \printdate%
            }%
            \setunit*{\addspace}%
            \usebibmacro{printcrossrefcitation}%
          }{%
            % Version differs: format as "version X of [citation]"
            \iftoggle{bbx:titleequal}{}{%
              \printfield{title}\addspace%
            }%
            \printfield{version}\addspace%
            \addspace of\addspace%
            \usebibmacro{printcrossrefcitation}%
            \ifnameundef{editor}{}{%
              \iftoggle{bbx:editorequal}{}{%
                \setunit*{\addcomma\addspace}%
                \printtext[parens]{%
                  \bibstring{edited}\addspace%
                  \printnames{editor}}%
              }%
            }%
            \iftoggle{bbx:dateequal}{}{%
              \setunit*{\addcomma\addspace}%
              \printdate}%
          }%
        }%
      }{%
        % Parent NOT cited - full expansion (print all fields, no parent reference)
        \printfield{title}\addspace%
        \printfield{version}\addspace%
        \ifnameundef{editor}%
          {}
          {\printtext[parens]{%
              \bibstring{edited}\addspace%
              \printnames{editor}}}%
        \setunit*{\addcomma\addspace}%
        \printdate%
      }%
    }{%
      % Conditional expansion disabled - use current verbose format logic
      \usebibmacro{checkallfields}%
      % Check if all key fields are equal
      \ifboolexpr{%
        test {\iftoggle{bbx:titleequal}}%
        and
        test {\iftoggle{bbx:versionequal}}%
        and
        test {\iftoggle{bbx:editorequal}}%
        and
        test {\iftoggle{bbx:dateequal}}%
      }{%
        % All fields equal: warn and print full entry
        \usebibmacro{warnduplicateentry}%
        \printfield{title}\addspace%
        \printfield{version}\addspace%
        \ifnameundef{editor}%
          {}
          {\printtext[parens]{%
              \bibstring{edited}\addspace%
              \printnames{editor}}}%
        \setunit*{\addcomma\addspace}%
        \printdate%
      }{%
        % Some fields differ: print them intelligently
        \iftoggle{bbx:versionequal}{%
          % Version same, but other fields differ
          \iftoggle{bbx:titleequal}{}{%
            \printfield{title}\addspace%
          }%
          \ifnameundef{editor}{}{%
            \iftoggle{bbx:editorequal}{}{%
              \printtext[parens]{%
                \bibstring{edited}\addspace%
                \printnames{editor}}%
              \setunit*{\addcomma\addspace}%
            }%
          }%
          \iftoggle{bbx:dateequal}{}{%
            \printdate%
          }%
          \setunit*{\addspace}%
          \usebibmacro{printcrossrefcitation}%
        }{%
          % Version differs: format as "version X of [citation]"
          \iftoggle{bbx:titleequal}{}{%
            \printfield{title}\addspace%
          }%
          \printfield{version}\addspace%
          \addspace of\addspace%
          \usebibmacro{printcrossrefcitation}%
          \ifnameundef{editor}{}{%
            \iftoggle{bbx:editorequal}{}{%
              \setunit*{\addcomma\addspace}%
              \printtext[parens]{%
                \bibstring{edited}\addspace%
                \printnames{editor}}%
            }%
          }%
          \iftoggle{bbx:dateequal}{}{%
            \setunit*{\addcomma\addspace}%
            \printdate%
          }%
        }%
      }%
    }%
  }%
}

\newbibmacro*{swtitleauthoreditoryear}{%
  % Check if we should skip author (conditional expansion + parent cited + author equal)
  \iffieldundef{crossref}{%
    % No crossref - always print author
    \printnames{author}\addcomma%
    \setunit{\addspace}%
    \usebibmacro*{tit+ver+ed+date}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if author is equal
        \usebibmacro{checkauthorequal}%
        \iftoggle{bbx:authorequal}{%
          % Author same - skip it
          \usebibmacro*{tit+ver+ed+date}%
        }{%
          % Author differs - print it
          \printnames{author}\addcomma%
          \setunit{\addspace}%
          \usebibmacro*{tit+ver+ed+date}%
        }%
      }{%
        % Parent not cited - always print author
        \printnames{author}\addcomma%
        \setunit{\addspace}%
        \usebibmacro*{tit+ver+ed+date}%
      }%
    }{%
      % Conditional expansion disabled - always print author
      \printnames{author}\addcomma%
      \setunit{\addspace}%
      \usebibmacro*{tit+ver+ed+date}%
    }%
  }%
}

%
% Reusable macro for subtitle with crossref (used by modules and fragments)
% #1 = relationship string (swpartof or swexc)
%
\newbibmacro*{printsubtitlewithcrossref}[1]{%
  % #1 = relationship string (swpartof or swexc)
  \iffieldundef{subtitle}%
    {%
      % No subtitle: let tit+ver+ed+date handle the relationship
      \usebibmacro*{tit+ver+ed+date}%
    }%
    {%
      % Subtitle exists: print it, then reference parent intelligently
      \printfield{subtitle}\addcomma\addspace%
      \iffieldundef{crossref}%
        {%
          % No crossref: print title/version/editor/date normally
          \usebibmacro*{tit+ver+ed+date}%
        }%
        {%
          % Crossref exists
          \iftoggle{bbx:crossrefexpansion}{%
            % Conditional expansion enabled
            \usebibmacro{checkparentcited}%
            \iftoggle{bbx:parentcited}{%
              % Parent is cited - use minimal format
              % Check entry type: codefragment entries should NOT show version
              % Check if relationship string is swexc (used only for codefragment)
              \ifstrequal{#1}{swexc}%
              {%
                % Codefragment entry - never show version, just cite parent
                \bibstring{#1}\addspace%
                \usebibmacro{printcrossrefcitation}%
              }%
              {%
                % Softwaremodule entry (swpartof) - show version if it differs
                \iffieldundef{version}%
                  {%
                    % No version field (inherited) - don't show version, just cite parent
                    \bibstring{#1}\addspace%
                    \usebibmacro{printcrossrefcitation}%
                  }%
                  {%
                    % Version field exists - check if it differs from parent
                    \usebibmacro{checkversionequal}%
                    \iftoggle{bbx:versionequal}%
                      {%
                        % Version same as parent - don't show it, just cite parent
                        \bibstring{#1}\addspace%
                        \usebibmacro{printcrossrefcitation}%
                      }%
                      {%
                        % Version differs from parent - show it
                        \printfield{version}\addspace%
                        \bibstring{#1}\addspace%
                        \usebibmacro{printcrossrefcitation}%
                      }%
                  }%
              }%
            }{%
              % Parent not cited - full expansion (print title/version/editor/date, no parent reference)
              \usebibmacro*{tit+ver+ed+date}%
            }%
          }{%
            % Conditional expansion disabled - use current verbose format
            % Check entry type: codefragment entries should NOT show version
            % Check if relationship string is swexc (used only for codefragment)
            \ifstrequal{#1}{swexc}%
            {%
              % Codefragment entry - never show version, just cite parent
              \bibstring{#1}\addspace%
              \usebibmacro{printcrossrefcitation}%
            }%
            {%
              % Softwaremodule entry (swpartof) - show version if it differs
              \iffieldundef{version}%
                {%
                  % No version field (inherited) - don't show version, just cite parent
                  \bibstring{#1}\addspace%
                  \usebibmacro{printcrossrefcitation}%
                }%
                {%
                  % Version field exists - check if it differs from parent
                  \usebibmacro{checkversionequal}%
                  \iftoggle{bbx:versionequal}%
                    {%
                      % Version same as parent - don't show it, just cite parent
                      \bibstring{#1}\addspace%
                      \usebibmacro{printcrossrefcitation}%
                    }%
                    {%
                      % Version differs from parent - show it
                      \printfield{version}\addspace%
                      \bibstring{#1}\addspace%
                      \usebibmacro{printcrossrefcitation}%
                    }%
                }%
            }%
          }%
        }%
    }%
}

%
\newbibmacro*{swsubtitleauthoreditoryear}{%
  % Check if we should skip author (conditional expansion + parent cited + author equal)
  \iffieldundef{crossref}{%
    % No crossref - always print author
    \printnames{author}\addcomma%
    \setunit{\addspace}%
    \usebibmacro*{printsubtitlewithcrossref}{swpartof}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if author is equal
        \usebibmacro{checkauthorequal}%
        \iftoggle{bbx:authorequal}{%
          % Author same - skip it
          \usebibmacro*{printsubtitlewithcrossref}{swpartof}%
        }{%
          % Author differs - print it
          \printnames{author}\addcomma%
          \setunit{\addspace}%
          \usebibmacro*{printsubtitlewithcrossref}{swpartof}%
        }%
      }{%
        % Parent not cited - always print author
        \printnames{author}\addcomma%
        \setunit{\addspace}%
        \usebibmacro*{printsubtitlewithcrossref}{swpartof}%
      }%
    }{%
      % Conditional expansion disabled - always print author
      \printnames{author}\addcomma%
      \setunit{\addspace}%
      \usebibmacro*{printsubtitlewithcrossref}{swpartof}%
    }%
  }%
}

\newbibmacro*{codefragmenttitleauthoreditoryear}{%
  % Check if we should skip author (conditional expansion + parent cited + author equal)
  \iffieldundef{crossref}{%
    % No crossref - always print author
    \printnames{author}\addcomma%
    \setunit{\addspace}%
    \usebibmacro*{printsubtitlewithcrossref}{swexc}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if author is equal
        \usebibmacro{checkauthorequal}%
        \iftoggle{bbx:authorequal}{%
          % Author same - skip it
          \usebibmacro*{printsubtitlewithcrossref}{swexc}%
        }{%
          % Author differs - print it
          \printnames{author}\addcomma%
          \setunit{\addspace}%
          \usebibmacro*{printsubtitlewithcrossref}{swexc}%
        }%
      }{%
        % Parent not cited - always print author
        \printnames{author}\addcomma%
        \setunit{\addspace}%
        \usebibmacro*{printsubtitlewithcrossref}{swexc}%
      }%
    }{%
      % Conditional expansion disabled - always print author
      \printnames{author}\addcomma%
      \setunit{\addspace}%
      \usebibmacro*{printsubtitlewithcrossref}{swexc}%
    }%
  }%
}

\newbibmacro{licenses}{%
  \iflistundef{license}
               {}
               {\iftoggle{bbx:license}%
                 {% Check if license differs from parent (in crossref context)
                  \iffieldundef{crossref}{}{%
                    \usebibmacro{checklicenseequal}%
                  }%
                  \iftoggle{bbx:licenseequal}{}{%
                    \newunitpunct
                    \mkbibacro{Lic}\addcolon
                    \printlist{license}
                  }%
                 }%
                 {}%
               }
}
  
\newbibmacro*{swids}{%
  % Check url and hal_id equality with parent if crossref exists
  \iffieldundef{crossref}{}{%
    \usebibmacro{checkurlequal}%
    \usebibmacro{checkhalidequal}%
  }%
  \printfield{doi}%
  \setunit*{\addcomma\addspace}%
  % Only print hal_id if it differs from parent (in crossref context)
  \iftoggle{bbx:halidequal}{}{%
    \printfield{hal_id}%
  }%
  \setunit*{\addcomma\addspace}%
  \iftoggle{bbx:eprint}
    {\usebibmacro{eprint}}
    {}%  
  \setunit*{\addcomma\addspace}%
  % Only print url if it differs from parent (in crossref context)
  \iftoggle{bbx:urlequal}{}{%
    \printfield{url}%
  }%
  \setunit*{\addcomma\addspace}%
  % Only print repository if not already printed in ultra-concise format
  \iftoggle{bbx:repositoryprinted}{}{%
    % Only print repository if it differs from parent (in crossref context)
    \iftoggle{bbx:repositoryequal}{}{%
      \printfield{repository}%
    }%
  }%
  \setunit*{\addcomma\addspace}%
  % Only print swhid if not already printed in ultra-concise format
  \iftoggle{bbx:swhidprinted}{}{%
    \printfield{swhid}%
  }%
  %
  % If only the url is present, output it regardless of bbx:url directive
  % But still omit if it equals parent (in crossref context)
  %
  \ifboolexpr{%
    not test {\iftoggle{bbx:url}}%
    and
    not test {\iffieldundef{url}}%
    and 
    test {\iffieldundef{doi}}%
    and 
    test {\iffieldundef{eprint}}%
    and 
    test {\iffieldundef{hal_id}}%
    and
    (test {\iftoggle{bbx:swhidprinted}} or test {\iffieldundef{swhid}})%
    and
    (test {\iftoggle{bbx:repositoryprinted}} or test {\iffieldundef{repository}})%
    and
    not test {\iftoggle{bbx:urlequal}}%
  }%
   {\usebibmacro{swurl+urldate}}%
   {}%
}               

\newbibmacro*{swrelated}{%
  \iffieldundef{related}%
               {}%
               {\iftoggle{bbx:related}
	         {\usebibmacro{related:init}%
	         \usebibmacro{related}
		 }
	         {}%
	       }%
}               

%
% Formatting the entries
%

\DeclareBibliographyDriver{software}{%
  \usebibmacro{bibindex}%
  \usebibmacro{begentry}%
  \iftoggle{bbx:swlabels}{\bibstring{software}{\addspace}}{}%
  \usebibmacro{swtitleauthoreditoryear}%
  \newunit\newblock%
  \printlist{institution}
  \newunit\newblock%
  \printlist{organization}
  \newunit\newblock%
  \usebibmacro{licenses}%
  \newunit\newblock%
  \usebibmacro{swids}%
  \newunit\newblock%
  \usebibmacro{swrelated}%
  \newunit\newblock%
  \iftoggle{bbx:addendum}%
    {\printfield{addendum}}%
    {}%
  \setunit{\bibpagerefpunct}\newblock
  \usebibmacro{pageref}%
  \usebibmacro{finentry}}

\DeclareBibliographyDriver{softwareversion}{%
  \usebibmacro{bibindex}%
  \usebibmacro{begentry}%
  \iftoggle{bbx:swlabels}{\bibstring{swversion}\addspace}{}%
  \iffieldundef{crossref}{%
    % No crossref - print normally
    \usebibmacro{swtitleauthoreditoryear}%
    \newunit\newblock%
    \printlist{institution}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if we can use ultra-concise format
        \usebibmacro{checkallfields}%
        \ifboolexpr{%
          test {\iftoggle{bbx:titleequal}}%
          and
          test {\iftoggle{bbx:authorequal}}%
          and
          test {\iftoggle{bbx:institutionequal}}%
          and
          test {\iftoggle{bbx:editorequal}}%
        }{%
          % All key fields equal - ultra-concise format
          % Skip author, title, institution - only version/date/entry-specific fields
          \usebibmacro{ultraconcise+softwareversion}%
        }{%
          % Some fields differ - show only differing fields
          \usebibmacro{swtitleauthoreditoryear}%
          \newunit\newblock%
          \iftoggle{bbx:institutionequal}{%
            % Institution same - skip it
          }{%
            \printlist{institution}%
          }%
        }%
      }{%
        % Parent not cited - full expansion
        \usebibmacro{swtitleauthoreditoryear}%
        \newunit\newblock%
        \printlist{institution}%
      }%
    }{%
      % Conditional expansion disabled - verbose format (current behavior)
      \usebibmacro{swtitleauthoreditoryear}%
      \newunit\newblock%
      \printlist{institution}%
    }%
  }%
  \newunit\newblock%
  \printlist{organization}
  \newunit\newblock%
  \usebibmacro{licenses}%
  \newunit\newblock%
  \usebibmacro{swids}%
  \newunit\newblock%
  \usebibmacro{swrelated}%
  \newunit\newblock%
  \iftoggle{bbx:addendum}%
    {\printfield{addendum}}%
    {}%
  \setunit{\bibpagerefpunct}\newblock
  \usebibmacro{pageref}%
  \usebibmacro{finentry}}

\DeclareBibliographyDriver{softwaremodule}{%
  \usebibmacro{bibindex}%
  \usebibmacro{begentry}%
  \iftoggle{bbx:swlabels}{\bibstring{swmodule}\addspace}{}%
  \iffieldundef{crossref}{%
    % No crossref - print normally
    \usebibmacro{swsubtitleauthoreditoryear}%
    \newblock\newblock%
    \printlist{institution}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if we can use ultra-concise format
        \usebibmacro{checkallfields}%
        % For modules, subtitle is always different, so check author/institution/date
        \ifboolexpr{%
          test {\iftoggle{bbx:authorequal}}%
          and
          test {\iftoggle{bbx:institutionequal}}%
          and
          test {\iftoggle{bbx:titleequal}}%
          and
          test {\iftoggle{bbx:editorequal}}%
        }{%
          % All key fields equal (except subtitle which is always different) - ultra-concise format
          \usebibmacro{ultraconcise+softwaremodule}%
        }{%
          % Some fields differ - show only differing fields
          \usebibmacro{swsubtitleauthoreditoryear}%
          \newblock\newblock%
          \iftoggle{bbx:institutionequal}{%
            % Institution same - skip it
          }{%
            \printlist{institution}%
          }%
        }%
      }{%
        % Parent not cited - full expansion
        \usebibmacro{swsubtitleauthoreditoryear}%
        \newblock\newblock%
        \printlist{institution}%
      }%
    }{%
      % Conditional expansion disabled - verbose format (current behavior)
      \usebibmacro{swsubtitleauthoreditoryear}%
      \newblock\newblock%
      \printlist{institution}%
    }%
  }%
  \newunit\newblock%
  \printlist{organization}
  \newunit\newblock%
  \usebibmacro{licenses}%
  \newunit\newblock%
  \usebibmacro{swids}%
  \newunit\newblock%
  \usebibmacro{swrelated}%
  \newunit\newblock%
  \iftoggle{bbx:addendum}%
    {\printfield{addendum}}%
    {}%
  \setunit{\bibpagerefpunct}\newblock
  \usebibmacro{pageref}%
  \usebibmacro{finentry}}

\DeclareBibliographyDriver{codefragment}{%
  \usebibmacro{bibindex}%
  \usebibmacro{begentry}%
  \iftoggle{bbx:swlabels}{\bibstring{swexcerpt}\addspace}{}%
  \iffieldundef{crossref}{%
    % No crossref - print normally
    \usebibmacro{codefragmenttitleauthoreditoryear}%
    \newunit\newblock%
    \printlist{institution}%
  }{%
    % Crossref exists
    \iftoggle{bbx:crossrefexpansion}{%
      % Conditional expansion enabled
      \usebibmacro{checkparentcited}%
      \iftoggle{bbx:parentcited}{%
        % Parent is cited - check if we can use ultra-concise format
        \usebibmacro{checkallfields}%
        % For fragments, subtitle is always different, so check author/institution/date
        % Note: fragments DO NOT have version, so we never show it
        \ifboolexpr{%
          test {\iftoggle{bbx:authorequal}}%
          and
          test {\iftoggle{bbx:institutionequal}}%
          and
          test {\iftoggle{bbx:titleequal}}%
          and
          test {\iftoggle{bbx:editorequal}}%
        }{%
          % All key fields equal (except subtitle which is always different) - ultra-concise format
          \usebibmacro{ultraconcise+codefragment}%
        }{%
          % Some fields differ - show only differing fields
          \usebibmacro{codefragmenttitleauthoreditoryear}%
          \newunit\newblock%
          \iftoggle{bbx:institutionequal}{%
            % Institution same - skip it
          }{%
            \printlist{institution}%
          }%
        }%
      }{%
        % Parent not cited - full expansion
        \usebibmacro{codefragmenttitleauthoreditoryear}%
        \newunit\newblock%
        \printlist{institution}%
      }%
    }{%
      % Conditional expansion disabled - verbose format (current behavior)
      \usebibmacro{codefragmenttitleauthoreditoryear}%
      \newunit\newblock%
      \printlist{institution}%
    }%
  }%
  \newunit\newblock%
  \printlist{organization}
  \newunit\newblock%
  \usebibmacro{licenses}%
  \newunit\newblock%
  \usebibmacro{swids}%
  \newunit\newblock%
  \usebibmacro{swrelated}%
  \newunit\newblock%
  \iftoggle{bbx:addendum}%
    {\printfield{addendum}}%
    {}%
  \setunit{\bibpagerefpunct}\newblock
  \usebibmacro{pageref}%
  \usebibmacro{finentry}}