category
|
fields
|
+|
demo-001
|
book
|
author index title year
|
+|
demo-002
|
book
|
crossref index year
|
+|
demo-003
|
book
|
author comment index title year
|
+|
demo-004
|
book
|
author comment index title year
|
+|
demo-005
|
book
|
author doi index pages serial title url year
|
}
You can set the current active dataset with
\setbtxdataset[standard]
but most publication-related commands accept optional arguments that denote the dataset and references to entries can be prefixed with a dataset identifier.. More about that later.
Renderings
A list of publications can be rendered at any place in the document. A database can be much larger than needed for a document. The same is true for the fields that make up an entry. Here is the list of fields that are currently handled, but of course there can be additional ones:
abstract, address, annotate, assignee, author, bibnumber, booktitle, chapter, comment, country, day, dayfiled, doi, edition, editor, eprint, howpublished, institution, isbn, issn, journal, key, keyword, keywords, language, lastchecked, month, monthfiled, names, nationality, note, notes, number, organization, pages, publisher, revision, school, series, size, title, type, url, volume, year, yearfiled
If you want to see what publications are in the database, the easiest way is to ask for a complete list:
\definebtxrendering
[example]
[dataset=example,
method=local,
alternative=apa]
\placelistofpublications % \placebtxrendering
[example]
[criterium=all]
This gives:1 Hagen, H. and Otten, T. (1996). Typesetting education documents2 Scarso, L. (2021). Designing high speed trains3 author (year). title pages p.
The rendering itself is somewhat complex to set up because we have not only many different standards but also many fields that can be set up. This means that there are several commands involved. Often there is a prescribed style to render bibliographic descriptions, for example apa. A rendering is setup and defined with:
And a list of such descriptions is generated with:
A dataset can have all kind of entries:
article, book, booklet, conference, inbook, incollection, inproceedings, manual, mastersthesis, misc, phdthesis, proceedings, techreport, unpublished
Each has its own rendering variant. To keep things simple we have their settings separated. However, these settings are shared for all rendering alternatives. In practice this is seldom a problem in a publication as only one rendering alternative will be active. If this be not sufficient, you can always group local settings in a setup and hook that into the specific rendering.
Examples of list variants are:
setupbtxlistvariant : artauthor
no specific settings
|
}
setupbtxlistvariant : author
no specific settings
|
}
setupbtxlistvariant : editor
no specific settings
|
}
The exact rendering of list entries is determined by the alternative key and defaults to apa which uses definitions from publ-imp-apa.mkiv. If you look at that file you will see that each category has its own setup. You may also notice that additional tests are needed to make sure that empty fields don’t trigger separators and such.
There are a couple of accessors and helpers to get the job done. When you want to fetch a field from the current entry you use \btxfield. In most cases you want to make sure this field has a value, for instance because you don’t want fences or punctuation that belongs to a field.
\btxdoif {title} {
\bold{\btxfield{title}},
}
There are three test macros:
\btxdoifelse{fieldname}{action when found}{action when not found}
\btxdoif {fieldname}{action when found}
\btxdoifnot {fieldname} {action when not found}
An extra conditional is available for testing interactivity:
\btxdoifelseinteraction{action when true}{action when false}
In addition there is also a conditional \btxinteractive which is more efficient, although in practice efficiency is not so important here.
There are three commands to flush data:
\btxfield
fetch a explicit field (e.g. year)
|
+|
\btxdetail
|
fetch a derived field (e.g. short)
|
+|
\btxflush
|
fetch a derived or explicit field
|
}
Normally you can use \btxfield or \btxflush as derived fields just like analyzed author fields are flushed in a special way.
You can improve readability by using setups, for instance:
\btxdoifelse {author} {
\btxsetup{btx:apa:author:yes}
} {
\btxsetup{btx:apa:author:nop}
}
Keep in mind that normally you don’t need to mess with definitions like this because standard rendering styles are provided. These styles use a few helpers that inject symbols but also take care of leading and trailing spaces:
\btxspace
before after
|
+|
\btxperiod
|
before. after
|
+|
\btxcomma
|
before, after
|
+|
\btxlparent
|
before (after
|
+|
\btxrparent
|
before) after
|
+|
\btxlbracket
|
before [after
|
+|
\btxrbracket
|
before] after
|
}
So, the previous example setup can be rewritten as:
\btxdoif {title} {
\bold{\btxfield{title}}
\btxcomma
}
There is a special command for rendering a (combination) of authors:
\btxflushauthor{author}
\btxflushauthor{editor}
\btxflushauthor[inverted]{editor}
Instead of the last one you can also use:
\btxflushauthorinverted{editor}
You can use a (configurable) default or pass directives: Valid directives are
conversion
rendering
|
+|
inverted
|
the Frog jr, Kermit
|
+|
invertedshort
|
the Frog jr, K
|
+|
normal
|
Kermit, the Frog, jr
|
+|
normalshort
|
K, the Frog, jr
|
}
Citations
Citations are references to bibliographic entries that normally show up in lists someplace in the document: at the end of a chapter, in an appendix, at the end of an article, etc. We discussed the rendering of these lists in the previous chapter. A citation is normally pretty short as its main purpose is to refer uniquely to a more detailed description. But, there are several ways to refer, which is why the citation subsystem is configurable and extensible. Just look at the following commands:
\cite[author][example::demo-003]
\cite[authoryear][example::demo-003]
\cite[authoryears][example::demo-003]
\cite[author][example::demo-003,demo-004]
\cite[authoryear][example::demo-003,demo-004]
\cite[authoryears][example::demo-003,demo-004]
\cite[author][example::demo-004,demo-003]
\cite[authoryear][example::demo-004,demo-003]
\cite[authoryears][example::demo-004,demo-003]
(Hans Hagen and Ton Otten)
(Hans Hagen and Ton Otten (1996))
(Hans Hagen and Ton Otten, 1996)
(Hans Hagen and Ton Otten, Luigi Scarso)
(Hans Hagen and Ton Otten (1996), Luigi Scarso (2021))
(Hans Hagen and Ton Otten, 1996, Luigi Scarso, 2021)
(Luigi Scarso, Hans Hagen and Ton Otten)
(Luigi Scarso (2021), Hans Hagen and Ton Otten (1996))
(Luigi Scarso, 2021, Hans Hagen and Ton Otten, 1996)
The first argument is optional.
You can tune the way a citation shows up:
\setupbtxcitevariant[author] [sorttype=author,color=darkyellow]
\setupbtxcitevariant[authoryear] [sorttype=author,color=darkyellow]
\setupbtxcitevariant[authoryears][sorttype=author,color=darkyellow]
\cite[author][example::demo-004,demo-003]
\cite[authoryear][example::demo-004,demo-003]
\cite[authoryears][example::demo-004,demo-003]
Here we sort the authors and color the citation:
(Hans Hagen and Ton Otten, Luigi Scarso)
(Hans Hagen and Ton Otten (1996), Luigi Scarso (2021))
(Hans Hagen and Ton Otten, 1996, Luigi Scarso, 2021)
For reasons of backward compatibility the \cite command is a bit picky about spaces between the two arguments, of which the first is optional. This is a consequence of allowing its use with the key specified between curly brackets as is the traditional practice. (We do encourage users to adopt the more coherent ConTEXt syntax by using square brackets for keywords and reserving curly brackets to regroup text to be typeset.)
The \citation command is synonymous but is more flexible with respect to spacing of its arguments:
\citation[author] [example::demo-004,demo-003]
\citation[authoryear] [example::demo-004,demo-003]
\citation[authoryears][example::demo-004,demo-003]
There is a whole bunch of cite options and more can be easily defined.
key
rendering
|
+|
author
|
(author)
|
+|
authornum
|
[author [btx error 1]]
|
+|
authoryear
|
(author (year))
|
+|
authoryears
|
(author, year)
|
+|
doi
|
[todo: doi]
|
+|
key
|
[demo-005]
|
+|
none
|
|
+|
num
|
btx error 1
|
+|
page
|
pages
|
+|
serial
|
[5]
|
+|
short
|
[aut00]
|
+|
type
|
[book]
|
+|
url
|
[todo: url]
|
+|
year
|
(year)
|
}
Because we are dealing with database input and because we generally need to manipulate entries, much of the work is delegated to Lua. This makes it easier to maintain and extend the code. Of course TEX still does the rendering. The typographic details are controlled by parameters but not all are used in all variants. As with most ConTEXt commands, it starts out with a general setup command:
On top of that we can define instances that inherit either from a given parent or from the topmost setup.
But, specific variants can have them overloaded:
setupbtxcitevariant : author
right
)
|
+|
middle
|
,
|
+|
left
|
(
|
}
setupbtxcitevariant : authornum
right
]
|
+|
middle
|
,
|
+|
left
|
[
|
}
setupbtxcitevariant : authoryear
compress
yes
|
+|
inbetween
|
,
|
+|
right
|
)
|
+|
middle
|
,
|
+|
left
|
(
|
}
setupbtxcitevariant : authoryears
compress
yes
|
+|
inbetween
|
,
|
+|
right
|
)
|
+|
middle
|
,
|
+|
left
|
(
|
}
setupbtxcitevariant : doi
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : key
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : none
no specific settings
|
}
setupbtxcitevariant : num
compress
yes
|
+|
inbetween
|
--
|
+|
right
|
]
|
+|
left
|
[
|
}
setupbtxcitevariant : page
inbetween
–
|
}
setupbtxcitevariant : serial
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : short
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : type
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : url
right
]
|
+|
left
|
[
|
}
setupbtxcitevariant : year
right
)
|
+|
left
|
(
|
}
A citation variant is defined in several steps and if you really want to know the dirty details, you should look into the publ-imp-*.mkiv files. Here we stick to the concept.
\startsetups btx:cite:author
\btxcitevariant{author}
\stopsetups
You can overload such setups if needed, but that only makes sense when you cannot configure the rendering with parameters. The \btxcitevariant command is one of the build in accessors and it calls out to Lua where more complex manipulation takes place if needed. If no manipulation is known, the field with the same name (if found) will be flushed. A command like \btxcitevariant assumes that a dataset and specific tag has been set. This is normally done in the wrapper macros, like \cite. For special purposes you can use these commands
\setbtxdataset[example]
\setbtxentry[hh2013]
But don’t expect too much support for such low level rendering control.
Unless you use criterium=all only publications that are cited will end up in the lists. You can force a citation into a list using \usecitation, for example:
\usecitation[example::demo-004,demo-003]
This command has two synonyms: \nocite and \nocitation so you can choose whatever fits you best.
The LUA view
Because we manage data at the Lua end it is tempting to access it there for other purposes. This is fine as long as you keep in mind that aspects of the implementation may change over time, although this is unlikely once the modules become stable.
The entries are collected in datasets and each set has a unique name. In this document we have the set named example. A dataset table has several fields, and probably the one of most interest is the luadata field. Each entry in this table describes a publication:
t={
["author"]="Hans Hagen",
["category"]="book",
["index"]=1,
["tag"]="demo-001",
["title"]="\\btxcmd{BIBTEX}, the \\btxcmd{CONTEXT}\\ way",
["year"]="2013",
}
This is publications.datasets.example.luadata["demo-001"]. There can be a companion entry in the parallel details table.
t={
["author"]={
{
["firstnames"]={ "Hans" },
["initials"]={ "H" },
["original"]="Hans Hagen",
["surnames"]={ "Hagen" },
["vons"]={},
},
},
["short"]="Hag13",
}
These details are accessed as publications.datasets.example.details["demo-001"] and by using a separate table we can overload fields in the original entry without losing the original.
You can loop over the entries using regular Lua code combined with MkIV helpers:
local dataset = publications.datasets.example
context.starttabulate { "|l|l|l|" }
for tag, entry in table.sortedhash(dataset.luadata) do
local detail = dataset.details[tag] or { }
context.NC() context.type(tag)
context.NC() context(detail.short)
context.NC() context(entry.title)
context.NC() context.NR()
end
context.stoptabulate()
This results in:
demo-001
Hag13
|
bibTEX, the ConTEXt way
|
+|
demo-002
|
Hag14
|
bibTEX, the ConTEXt way
|
+|
demo-003
|
HO96
|
Typesetting education documents
|
+|
demo-004
|
Sca21
|
Designing high speed trains
|
+|
demo-005
|
aut00
|
title
|
}
The XML view
The luadata table can be converted into an xml representation. This is a follow up on earlier experiments with an xml-only approach. I decided in the end to stick to a Lua approach and provide some simple xml support in addition.
Once a dataset is accessible as xml tree, you can use the regular \xml... commands. We start with loading a dataset, in this case from just one file.
\usebtxdataset[tugboat][tugboat.bib]
The dataset has to be converted to xml:
\convertbtxdatasettoxml[tugboat]
The tree is now accessible by its root reference btx:tugboat. If we want simple field access we can use a few setups:
\startxmlsetups btx:initialize
\xmlsetsetup{#1}{bibtex|entry|field}{btx:*}
\xmlmain{#1}
\stopxmlsetups
\startxmlsetups btx:field
\xmlflushcontext{#1}
\stopxmlsetups
\xmlsetup{btx:tugboat}{btx:initialize}
The two setups are predefined in the core already, but you might want to change them. They are applied in for instance:
\starttabulate[|||]
\NC \type {tag} \NC \xmlfirst {btx:tugboat}
{/bibtex/entry[string.find(@tag,'Hagen')]/attribute('tag')}
\NC \NR
\NC \type {title} \NC \xmlfirst {btx:tugboat}
{/bibtex/entry[string.find(@tag,'Hagen')]/field[@name='title']}
\NC \NR
\stoptabulate
tag
Hagen:TB17-1-54
|
+|
title
|
PPCHTEX: typesetting chemical formulas in TEX
|
}
\startxmlsetups btx:demo
\xmlcommand
{#1}
{/bibtex/entry[string.find(@tag,'Hagen')][1]}{btx:table}
\stopxmlsetups
\startxmlsetups btx:table
\starttabulate[|||]
\NC \type {tag} \NC \xmlatt{#1}{tag} \NC \NR
\NC \type {title} \NC \xmlfirst{#1}{/field[@name='title']} \NC \NR
\stoptabulate
\stopxmlsetups
\xmlsetup{btx:tugboat}{btx:demo}
tag
Hagen:TB17-1-54
|
+|
title
|
PPCHTEX: typesetting chemical formulas in TEX
|
}
Here is another example:
\startxmlsetups btx:row
\NC \xmlatt{#1}{tag}
\NC \xmlfirst{#1}{/field[@name='title']}
\NC \NR
\stopxmlsetups
\startxmlsetups btx:demo
\xmlfilter {#1} {
/bibtex
/entry[@category='article']
/field[@name='author' and (find(text(),'Knuth') or find(text(),'DEK'))]
/../command(btx:row)
}
\stopxmlsetups
\starttabulate[|||]
\xmlsetup{btx:tugboat}{btx:demo}
\stoptabulate
Knuth:TB10-1-31
Typesetting Concrete Mathematics
|
+|
Knuth:TB10-1-8
|
TEX would find it difficult …
|
+|
Knuth:TB10-3-325
|
The new versions of TEX and MF
|
+|
Knuth:TB10-4-529
|
The errors of TEX
|
+|
Knuth:TB11-1-13
|
Virtual Fonts: More Fun for Grand Wizards
|
+|
Knuth:TB11-2-165
|
Exercises for TEX: The Program
|
+|
Knuth:TB11-4-489
|
The future of TEX and MF
|
+|
Knuth:TB11-4-497
|
Arthur Lee Samuel, 1901--1990
|
+|
Knuth:TB11-4-499
|
Answers to Exercises for TEX: The Program
|
+|
Knuth:TB12-2-313
|
Fixed-point glue setting: Errata
|
+|
Knuth:TB14-4-387
|
Icons for TEX and MF
|
+|
Knuth:TB17-1-29
|
Important message regarding CM fonts
|
+|
Knuth:TB2-3-5
|
The current state of things
|
+|
Knuth:TB3-1-10
|
Fixed-point glue settingDash an example of WEB
|
+|
Knuth:TB31-2-121
|
An Earthshaking Announcement
|
+|
Knuth:TB4-2-64
|
A note on hyphenation
|
+|
Knuth:TB5-1-4
|
TEX incunabula
|
+|
Knuth:TB5-1-67
|
Comments on quality in publishing
|
+|
Knuth:TB5-2-105
|
A course on MF programming
|
+|
Knuth:TB6-1-36
|
Recipes and fractions
|
+|
Knuth:TB7-2-101
|
The TEX logo in various fonts
|
+|
Knuth:TB7-2-95
|
Remarks to celebrate the publication of Computers & Typesetting
|
+|
Knuth:TB8-1-14
|
Mixing right-to-left texts with left-to-right texts
|
+|
Knuth:TB8-1-6
|
It happened: announcement of TEX 2.1
|
+|
Knuth:TB8-1-73
|
Problem for a Saturday afternoon
|
+|
Knuth:TB8-2-135
|
Fonts for digital halftones
|
+|
Knuth:TB8-2-210
|
Saturday morning problemDash solution
|
+|
Knuth:TB8-2-217
|
Reply: Printing out selected pages
|
+|
Knuth:TB8-3-309
|
Macros for Jill
|
+|
Knuth:TB9-2-152
|
A Punk Meta-Font
|
}
A more extensive example is the following. Of course this assumes that you know what xml support mechanisms and macros are available.
\startxmlsetups btx:getkeys
\xmladdsortentry{btx}{#1}{\xmlfilter{#1}{/field[@name='author']/text()}}
\xmladdsortentry{btx}{#1}{\xmlfilter{#1}{/field[@name='year' ]/text()}}
\xmladdsortentry{btx}{#1}{\xmlatt{#1}{tag}}
\stopxmlsetups
\startxmlsetups btx:sorter
\xmlresetsorter{btx}
% \xmlfilter{#1}{entry/command(btx:getkeys)}
\xmlfilter{#1}{
/bibtex
/entry[@category='article']
/field[@name='author' and find(text(),'Knuth')]
/../command(btx:getkeys)}
\xmlsortentries{btx}
\starttabulate[||||]
\xmlflushsorter{btx}{btx:entry:flush}
\stoptabulate
\stopxmlsetups
\startxmlsetups btx:entry:flush
\NC \xmlfilter{#1}{/field[@name='year' ]/context()}
\NC \xmlatt{#1}{tag}
\NC \xmlfilter{#1}{/field[@name='author']/context()}
\NC \NR
\stopxmlsetups
\xmlsetup{btx:tugboat}{btx:sorter}
1984
Knuth:TB5-1-67
|
Don Knuth
|
+|
1984
|
Knuth:TB5-1-4
|
Donald E. Knuth
|
+|
1984
|
Knuth:TB5-2-105
|
Donald E. Knuth
|
+|
1985
|
Knuth:TB6-1-36
|
Donald E. Knuth
|
+|
1986
|
Knuth:TB7-2-101
|
Donald E. Knuth
|
+|
1987
|
Knuth:TB8-2-135
|
Donald E. Knuth
|
+|
1987
|
Knuth:TB8-3-309
|
Donald E. Knuth
|
+|
1988
|
Knuth:TB9-2-152
|
Donald E. Knuth
|
+|
1989
|
Knuth:TB10-3-325
|
Donald E. Knuth
|
+|
1989
|
Knuth:TB10-4-529
|
Donald E. Knuth
|
+|
1990
|
Knuth:TB11-4-489
|
Donald E. Knuth
|
+|
1993
|
Knuth:TB14-4-387
|
Donald E. Knuth
|
+|
1996
|
Knuth:TB17-1-29
|
Donald E. Knuth
|
+|
1987
|
Knuth:TB8-1-14
|
Donald Knuth and Pierre MacKay
|
+|
1981
|
Knuth:TB2-3-5
|
Donald Knuth
|
+|
1982
|
Knuth:TB3-1-10
|
Donald Knuth
|
+|
1983
|
Knuth:TB4-2-64
|
Donald Knuth
|
+|
1986
|
Knuth:TB7-2-95
|
Donald Knuth
|
+|
1987
|
Knuth:TB8-1-6
|
Donald Knuth
|
+|
1987
|
Knuth:TB8-1-73
|
Donald Knuth
|
+|
1987
|
Knuth:TB8-2-210
|
Donald Knuth
|
+|
1987
|
Knuth:TB8-2-217
|
Donald Knuth
|
+|
1989
|
Knuth:TB10-1-8
|
Donald Knuth
|
+|
1989
|
Knuth:TB10-1-31
|
Donald Knuth
|
+|
1990
|
Knuth:TB11-1-13
|
Donald Knuth
|
+|
1990
|
Knuth:TB11-2-165
|
Donald Knuth
|
+|
1990
|
Knuth:TB11-4-497
|
Donald Knuth
|
+|
1990
|
Knuth:TB11-4-499
|
Donald Knuth
|
+|
1991
|
Knuth:TB12-2-313
|
Donald Knuth
|
+|
2010
|
Knuth:TB31-2-121
|
Donald Knuth
|
}
The original data is stored in a Lua table, hashed by tag. Starting with Lua 5.2 each run of Lua gets a different ordering of such a hash. In older versions, when you looped over a hash, the order was undefined, but the same as long as you used the same binary. This had the advantage that successive runs, something we often have in document processing gave consistent results. In today’s Lua we need to do much more sorting of hashes before we loop, especially when we save multi--pass data. It is for this reason that the xml tree is sorted by hash key by default. That way lookups (especially the first of a set) give consistent outcomes.
Standards
The rendering of bibliographic entries is often standardized and prescribed by the publisher. If you submit an article to a journal, normally it will be reformatted (or even re- keyed) and the rendering will happen at the publishers end. In that case it may not matter how entries were rendered when writing the publication, because the publisher will do it his or her way. This means that most users probably will stick to the standard apa rules and for them we provide some configuration. Because we use setups it is easy to overload specifics. If you really want to tweak, best look in the files that deal with it.
Many standards exist and support for other renderings may be added to the core. Interested users are invited to develop and to test alternate standard renderings according to their needs.
Todo: maybe a list of categories and fields.
Cleaning up
Although the bibTEX format is reasonably well defined, in practice there are many ways to organize the data. For instance, one can use predefined string constants that get used (either or not combined with other strings) later on. A string can be enclosed in curly braces or double quotes. The strings can contain TEX commands but these are not standardized. The databases often have somewhat complex ways to deal with special characters and the use of braces in their definition is also not normalized.
The most complex to deal with are the fields that contain names of people. At some point it might be needed to split a combination of names into individual ones that then get split into title, first name, optional inbetweens, surname(s) and additional: Prof. Dr. Alfred B. C. von Kwik Kwak Jr. II and P. Q. Olet is just one example of this. The convention seems to be not to use commas but and to separate names (often each name will be specified as lastname, firstname).
We don’t see it as challenge nor as a duty to support all kinds of messy definitions. Of course we try to be somewhat tolerant, but you will be sure to get better results if you use nicely setup, consistent databases.
Todo: maybe some examples of bad.
Transition
In the original bibliography support module usage was as follows (example taken from the contextgarden wiki):
% engine=pdftex
\usemodule[bib]
\usemodule[bibltx]
\setupbibtex
[database=xampl]
\setuppublications
[numbering=yes]
\starttext
As \cite [article-full] already indicated, bibtex is a \LATEX||centric
program.
\completepublications
\stoptext
For MkIV the modules were partly rewritten and ended up in the core so the two commands were no longer needed. The overhead associated with the automatic loading of the bibliography macros can be neglected these days, so standardized modules such as bib are all being moved to the core and do not need to be explicitly loaded.
The first \setupbibtex command in this example is needed to bootstrap the process: it tells what database has to be processed by bibTEX between runs. The second \setuppublications command is optional. Each citation (tagged with \cite) ends up in the list of publications.
In the new approach we no longer use bibTEXso we don’t need to setup bibTEX. Instead we define dataset(s). We also no longer set up publications with one command, but have split that up in rendering-, list-, and cite-variants. The basic \cite command remains. The above example becomes:
\definebtxdataset
[document]
\usebtxdataset
[document]
[mybibfile.bib]
\definebtxrendering
[document]
\setupbtxrendering
[document]
[numbering=yes]
\starttext
As \cite [article-full] already indicated, bibtex is a \LATEX||centric
program.
\completebtxrendering[document]
\stoptext
So, we have a few more commands to set up things. If you intend to use just a single dataset and rendering, the above preamble can be simplified to:
\usebtxdataset
[mybibfile.bib]
\setupbtxrendering
[numbering=yes]
But keep in mind that compared to the old MkII derived method we have moved some of the options to the rendering, list and cite setup variants.
Another difference is now the use of lists. When you define a rendering, you also define a list. However, all entries are collected in a common list tagged btx. Although you will normally configure a rendering you can still set some properties of lists, but in that case you need to prefix the list identifier. In the case of the above example this is btx:document.
MLBIBTEX
Todo: how to plug in MLbibTEX for sorting and other advanced operations.
Extensions
As TEX and Lua are both open and accessible in ConTEXt it is possible to extend the functionality of the bibliography related code. For instance, you can add extra loaders.
function publications.loaders.myformat(dataset,filename)
local t = { }
-- Load data from 'filename' and convert it to a Lua table 't' with
-- the key as hash entry and fields conforming the luadata table
-- format.
loaders.lua(dataset,t)
end
This then permits loading a database (into a dataset) with the command:
\usebtxdataset[standard][myfile.myformat]
The myformat suffix is recognized automatically. If you want to use another suffix, you can do this:
\usebtxdataset[standard][myformat::myfile.txt]
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|