.\" Automatically generated by Pod::Man 4.10 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "Biber::Entry 3pm"
.TH Biber::Entry 3pm "2019-02-28" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Biber::Entry \- Biber::Entry objects
.SS "new"
.IX Subsection "new"
.Vb 1
\&    Initialize a Biber::Entry object
\&
\&    There are three types of field possible in an entry:
\&
\&    * data    \- These are fields which derive directly from or are themselves fields in the
\&                data source. Things like YEAR, MONTH, DAY etc. are such fields which are
\&                derived from, for example, the DATE field. They are part of the original
\&                data implicitly, derived from a field.
\&    * derived \- These are fields, often meta\-information like labelname, labelalpha etc.
\&                which are more removed from the data fields.
\&
\&    The reason for this division is largely the entry cloning required for the related entry and
\&    inheritance features. When we clone an entry or copy some fields from one entry to another
\&    we generally don\*(Aqt want the "derived" category as such derived meta\-fields will often need
\&    to be re\-created or ignored so we need to know which are the actual "data" fields to
\&    copy/clone.
.Ve
.SS "relclone"
.IX Subsection "relclone"
.Vb 1
\&    Recursively create related entry clones starting with an entry
.Ve
.SS "clone"
.IX Subsection "clone"
.Vb 2
\&    Clone a Biber::Entry object and return a copy
\&    Accepts optionally a key for the copy
.Ve
.SS "notnull"
.IX Subsection "notnull"
.Vb 1
\&    Test for an empty object
.Ve
.SS "set_labelname_info"
.IX Subsection "set_labelname_info"
.Vb 3
\&  Record the labelname information. This is special
\&  meta\-information so we have a separate method for this
\&  Takes a hash ref with the information.
.Ve
.SS "get_labelname_info"
.IX Subsection "get_labelname_info"
.Vb 3
\&  Retrieve the labelname information. This is special
\&  meta\-information so we have a separate method for this
\&  Returns a hash ref with the information.
.Ve
.SS "set_labelnamefh_info"
.IX Subsection "set_labelnamefh_info"
.Vb 3
\&  Record the fullhash labelname information. This is special
\&  meta\-information so we have a separate method for this
\&  Takes a hash ref with the information.
.Ve
.SS "get_labelnamefh_info"
.IX Subsection "get_labelnamefh_info"
.Vb 3
\&  Retrieve the fullhash labelname information. This is special
\&  meta\-information so we have a separate method for this
\&  Returns a hash ref with the information.
.Ve
.SS "set_labeltitle_info"
.IX Subsection "set_labeltitle_info"
.Vb 3
\&  Record the labeltitle information. This is special
\&  meta\-information so we have a separate method for this
\&  Takes a hash ref with the information.
.Ve
.SS "get_labeltitle_info"
.IX Subsection "get_labeltitle_info"
.Vb 3
\&  Retrieve the labeltitle information. This is special
\&  meta\-information so we have a separate method for this
\&  Returns a hash ref with the information.
.Ve
.SS "set_labeldate_info"
.IX Subsection "set_labeldate_info"
.Vb 3
\&  Record the labeldate information. This is special
\&  meta\-information so we have a separate method for this
\&  Takes a hash ref with the information.
.Ve
.SS "get_labeldate_info"
.IX Subsection "get_labeldate_info"
.Vb 3
\&  Retrieve the labeldate information. This is special
\&  meta\-information so we have a separate method for this
\&  Returns a hash ref with the information.
.Ve
.SS "set_field"
.IX Subsection "set_field"
.Vb 2
\&  Set a derived field for a Biber::Entry object, that is, a field
\&  which was not an actual bibliography field
.Ve
.SS "get_field"
.IX Subsection "get_field"
.Vb 2
\&    Get a field for a Biber::Entry object
\&    Uses // as fields can be null (end dates etc).
.Ve
.SS "set_datafield"
.IX Subsection "set_datafield"
.Vb 1
\&    Set a field which is in the .bib data file
.Ve
.SS "get_datafield"
.IX Subsection "get_datafield"
.Vb 1
\&    Get a field that was in the original data file
.Ve
.SS "del_field"
.IX Subsection "del_field"
.Vb 1
\&    Delete a field in a Biber::Entry object
.Ve
.SS "del_datafield"
.IX Subsection "del_datafield"
.Vb 1
\&    Delete an original data source data field in a Biber::Entry object
.Ve
.SS "field_exists"
.IX Subsection "field_exists"
.Vb 1
\&    Check whether a field exists (even if null)
.Ve
.SS "date_fields_exist"
.IX Subsection "date_fields_exist"
.Vb 1
\&    Check whether any parts of a date field exist when passed a datepart field name
.Ve
.SS "datafields"
.IX Subsection "datafields"
.Vb 1
\&    Returns a sorted array of the fields which came from the data source
.Ve
.SS "count_datafields"
.IX Subsection "count_datafields"
.Vb 1
\&    Returns the number of datafields
.Ve
.SS "derivedfields"
.IX Subsection "derivedfields"
.Vb 1
\&    Returns a sorted array of the fields which were added during processing
.Ve
.SS "fields"
.IX Subsection "fields"
.Vb 3
\&    Returns a sorted array of all field names, including ones
\&    added during processing which are not necessarily fields
\&    which came from the data file
.Ve
.SS "count_fields"
.IX Subsection "count_fields"
.Vb 1
\&    Returns the number of fields
.Ve
.SS "has_keyword"
.IX Subsection "has_keyword"
.Vb 2
\&    Check if a Biber::Entry object has a particular keyword in
\&    in the KEYWORDS field.
.Ve
.SS "add_warning"
.IX Subsection "add_warning"
.Vb 1
\&    Append a warning to a Biber::Entry object
.Ve
.SS "set_inherit_from"
.IX Subsection "set_inherit_from"
.Vb 1
\&    Inherit fields from first child entry
\&
\&    $entry\->set_inherit_from($firstchild);
\&
\&    Takes a second Biber::Entry object as argument
\&
\&    The purpose here is to inherit fields so that sorting/labelling defaults
\&    can be generated for set parents from the first child set member data, unless
\&    the set parent itself already has some fields set that will do this. Set
\&    parents only have certain fields output in the .bbl and those that output but
\&    are not used in sorting/labelling data generation should not be inherited.
.Ve
.SS "resolve_xdata"
.IX Subsection "resolve_xdata"
.Vb 1
\&    Recursively resolve XDATA fields in an entry
\&
\&    $entry\->resolve_xdata($xdata_entry);
.Ve
.SS "inherit_from"
.IX Subsection "inherit_from"
.Vb 1
\&    Inherit fields from parent entry (as indicated by the crossref field)
\&
\&    $entry\->inherit_from($parententry);
\&
\&    Takes a second Biber::Entry object as argument
\&    Uses the crossref inheritance specifications from the .bcf
.Ve
.SS "dump"
.IX Subsection "dump"
.Vb 1
\&    Dump Biber::Entry object
.Ve
.SH "AUTHORS"
.IX Header "AUTHORS"
Franc\*,ois Charette, \f(CW\*(C`<firmicus at ankabut.net>\*(C'\fR
Philip Kime \f(CW\*(C`<philip at kime.org.uk>\*(C'\fR
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs or feature requests on our Github tracker at
<https://github.com/plk/biber/issues>.
.SH "COPYRIGHT & LICENSE"
.IX Header "COPYRIGHT & LICENSE"
Copyright 2009\-2018 Franc\*,ois Charette and Philip Kime, all rights reserved.
.PP
This module is free software.  You can redistribute it and/or
modify it under the terms of the Artistic License 2.0.
.PP
This program is distributed in the hope that it will be useful,
but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.