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Bibhtml consists of a set of BibTeX style files, which allow you to use BibTeX to produce bibliographies in HTML. These are modelled closely on the standard BibTeX style files.
To accompany them, this package includes a pair of XSLT scripts which illustrate how you might integrate these generated bibliographies into an XML/HTML workflow.
The long-term URL for this package is http://purl.org/nxg/dist/bibhtml
This documentation describes bibhtml version 2.0.2, released 2013 September 8.
Bibhtml consists of a set of BibTeX style files, which allow you to use BibTeX to produce bibliographies in HTML. These are modelled closely on the standard BibTeX style files. For sample output, see the reference section below.
To accompany them, this package includes a pair of XSLT scripts which illustrate how you might integrate these generated bibliographies into an XML/HTML workflow.
The output of these style files is usable as-is, but it benefits
from some post-processing, to remove TeX-isms. There’s a sed
script in the distribution which does exactly that, called
detex.sed. If you want to make a version of that in some
other regexp-supporting language, let me know and I can include it in
the distribution.
As well, the package includes a Perl script which orchestrates the various steps required to manage such a bibliography for one or more HTML files. The references in the text are linked directly to the corresponding bibliography entry, and if a URL is defined in the entry within the BibTeX database file, then the generated bibliography entry is linked to this.
The BibTeX style files are
abbrvhtml.bst,
alphahtml.bst,
plainhtml.bst and
unsrthtml.bst.
As well, there are
.bst files which produce their output in date order. To
use them, you should generate an .aux file by some
appropriate means, and include the line
\bibstyle{plainhtml}. Run BibTeX, and the result is a
.bbl file, in broadly the same style as the corresponding
traditional BibTeX one, but formatted
using HTML rather than LaTeX. This might form a useful component of a
XSLT-based workflow. For further details, see the discussion of the
style files below.
There is also a Perl script, bibhtml, which can orchestrate generating and using
this .aux file. This script isn’t really maintained any
more, but it is still distributed, and documented below.
Bibhtml works with a standard BibTeX database – it is
intended to be compatible with a database used in the standard way
with LaTeX. The BibTeX style files
distributed with this package define an additional
url field: if this is present, then the generated entry
will contain a link to this URL. They also define an
eprint field – if you do not use the LANL preprint
archive, this will be of no interest to you.
The package includes several BibTeX style files. As well as the
ones directly derived from the standard styles, there are also
plainhtmldate.bst,
plainhtmldater.bst,
alphahtmldate.bst and
alphahtmldater.bst styles,
which are derived from the standard
plain.bst and alpha.bst styles,
which sort the
output by date and reverse date, rather than by author.
In version 2 of the bibhtml package, the
*html.bst files are derived from the traditional files
using the urlbst
package, and then minimally adjusted so as to produce HTML rather than
LaTeX.
Since they are derived via the urlbst package, these style
files support an additional entry type, @webpage, and two
additional fields on all entry types, url and
lastchecked, which give the URL associated with the
reference, and the date at which the URL was last verified to be still
present.
The distributed .bst files have two configurable
parameters, which you might want to adjust for your installation:
The variable 'xxxmirror gives the host name of the arXiv mirror which will be used
when generating links to eprints. The default setting in the
.bst files is:
"xxx.arxiv.org" 'xxxmirror :=
By default, the style files generate link targets in the
bibliography with the same name as the citation key. Thus a BibTeX
entry with key surname99, say, would appear in the
generated HTML .bbl file wrapped in <a
name="surname99">...</a>. If this is inconvenient,
perhaps because it conflicts with other links within the file,
then you can adjust the 'hrefprefix variable within the
style file, to specify a prefix which should appear in the link key.
Thus setting
"ref:" 'hrefprefix :=
in the .bst file would produce links like <a
name="ref:surname99">...</a> in the .bbl
file.
The distribution includes a pair of sample XSLT scripts:
bibhtml-extract-aux.xslt shows how you might use XSLT to
extract citations from a source file into an .aux
file, for processing into a .bbl file;bibhtml-insert-bib.xslt shows how you might use XSLT
to insert the resulting .bbl file into the original
file.The scripts assume that a source file is in XHTML, and has citations marked up as
<span class='cite'>ref99</span>
and that the bibliography is indicated with
<?bibliography bibdata bibstyle?>
A suitable workflow, taking as an example the source file for the page you are reading, is:
% xsltproc bibhtml-extract-aux.xslt bibhtml.html >bibhtml.aux
% bibtex bibhtml
This is BibTeX, Version 0.99c (Web2C 7.5.7)
The top-level auxiliary file: bibhtml.aux
The style file: unsrthtml.bst
Database file #1: bibrefs.bib
% sed -f detex.sed bibhtml.bbl >bibhtml.bbl.tmp
% mv bibhtml.bbl.tmp bibhtml.bbl
% xsltproc --stringparam bibfile-name bibhtml \
bibhtml-insert-bib.xslt bibhtml.html >bibhtml-new.html
The bibhtml.xslt script, when run over a source file,
generates a .aux suitable for processing with BibTeX.
The resulting .bbl file, possibly after
post-processing, can be included in the
source XHTML with an XSLT script which includes something like:
<xsl:template select="processing-instruction('bibliography')">
<xsl:copy-of select="document('mybib.bbl')"/>
</xsl:template>
The output of the BibTeX styles is designed so that it is generally
reasonably usable without any post-processing. However it is not
ideal, since there are occasionaly TeX-isms such as backslash-escaped
characters and the like, depending on what is in the source
.bib file. Also, without post-processing any DOIs in
the source file aren’t formed into links.
The distribution includes a sed file,
detex.sed, which can do appropriate post-processing.
Thus the normal workflow is:
% bibtex mydoc % sed -f detex.sed mydoc.bbl >mydoc.bbl.tmp % mv mydoc.bbl.tmp mydoc.bbl
Since it uses sed, this is fairly obviously
unix-specific, but if anyone would like to contribute a script with
similar functionality (it’s just a few moderately tortuous regular
expressions), I’d be delighted to include it in the distribution.
The .bst files have to be installed
‘somewhere where LaTeX can find them’. If you give the command
kpsepath bst you can see the list of directories that
BibTeX searches for .bst files – on my system, I’d put
them into /usr/local/texlive/texmf-local/bibtex/bst,
which is a directory for system-wide local additions.
If you wish, you may change the distributed BibTeX style files (see
above) to the extent of changing the
‘eprint’ mirror site from the master xxx.arxiv.org to a
more local mirror. If you don’t use the LANL preprint archive, this
will be of no interest to you.
As noted above, this script should still work and is distributed on that basis, but it’s no longer maintained, and won’t be further developed. The XSLT-based mechanism described above is probably more robust; also, the interface described in this section is not the same as the interface of the XSLT scripts section above.
TeX features such as ~ and -- are translated to
corresponding HTML entities (controlled with the +3
switch, see below), but other TeX constructions will make their way
into the generated HTML, and look a little odd. I might try to deal
with these in future versions.
You prepare your text simply by including links to the bibliography file
(the default is bibliography.html), followed by a fragment
composed of the BibTeX citation key. Thus, you might cite [grendel89]
with
<a href="bibliography.html#grendel89">(Grendel, 1989)</a>
(of course, the link text can be anything you like). That’s all there is to
it. When you run bibhtml, it generates an
.aux file which makes BibTeX produce references for exactly those
keys which appear in this way.
The bibliography file is an ordinary HTML document (which may
itself have citations within it), distinguished only by having two
processing instructions within it.
Bibhtml replaces everything between
<?bibhtml start ?>
and
<?bibhtml end ?>
(which should be on lines by themselves) with the formatted
bibliography. It leaves those instructions in place, naturally, so once
this file is set up, you shouldn’t have to touch it again. Older
versions of bibhtml used the magic comments <-- bibhtml start
--> and <-- bibhtml end -->: these are
still supported, but are deprecated and may disappear in a future version.
Alternatively, you may include the processing instruction
<?bibhtml insert?>. This acts broadly like the
start and end processing instructions,
except that the line is completely replaced by the inserted
bibliography. This is useful if the file being processed is a
generated file (perhaps the output of a separate XML tool-chain, for
example), which will not therefore have to be rescanned in future.
You can specify the bibliography database and style file either on
the command line (see below) or using the
<?bibhtml bibdata bibfile?>
and <?bibhtml bibstylestylefile?> instructions. The
value of ‘bibdata’ is cumulative, and appends to any value specified
on the command line. A value of ‘bibstyle’ specified on the command
line, in contrast, overrides any value in the file.
As a special case, bibhtml also replaces the line after a
comment <?bibhtml today ?> with today’s date.
Summary of processing instructions:
<?bibhtml start?> and <?bibhtml
stop?><?bibhtml insert?>--strip option.<?bibhtml bibdata bibfile?>\bibliography{bibfile} command in a
LaTeX file; see also the -b command-line option.<?bibhtml bibstyle stylefile?>\bibliographystyle{stylefile}
command in a LaTex file; see also the -s command-line option.<?bibhtml today?>Usage
% bibhtml [options...] filename... % bibhtml --merge file.bbl file.html
The filename argument is the name of a file to be scanned.
Bibhtml takes a list of HTML files as argument (though see
below for a two-pass variant). It creates an
.aux file, runs BibTeX, and merges the resulting
.bbl file (if it exists) into bibliography.html, or
whatever has been specified as the bibliography file name.
There are several options:
~ translated to
, and -- to
&enspace;. Or set it to -3 (the default) if you
don’t.\nocite{*} in LaTeX.\bibliography{} command in LaTeX. Unless you happen to
keep all your references in a file called bib.bib, you’ll
probably want to change this. Or you can use the <?bibhtml
bibdata xxx?> processing instruction..bbl file and an .html file,
merges the first into the second, and nothing else. It’s
intended to be used when you have generated a
.bbl file by a separate run of BibTeX, and simply
wish to merge the results into your bibliography file. As
such, it will most likely be useful as part of a script, or
other post-processing system.rootname.html,
rootname.aux and so on. Why not just stick with the default
‘bibliography’...? \bibstyle command in
LaTeX. If you want to have a different layout for your HTML
bibliographies, please don’t change the file plainhtml.bst
distributed with bibhtml. Instead, make a copy of
plainhtml.bst under a different name, edit it as much as you
like, and use this option of bibhtml to use the modified
version instead of the default. Or you can use the <?bibhtml
bibstyle xxx?> processing instruction.The defaults for the various parameters are unlikely to be helpful,
so you’re likely to want to set one or more of them every time you run
the program. It is for this reason, and because you’re likely to want
the same set of options every time you create the bibliography for a
set of files in a directory, that you can put a collection of options
in a configuration file. This can be specified on the command line
with the option -c configfilename. If this option
is not given, then bibhtml looks for a file named
bibhtml.config. For example, the configuration
file might contain:
-b mybib +3 -r refs
You might sometimes have a need to invoke the
two phases separately. If you make a symbolic link to the program via
ln -s bibhtml bibhtml2, then you can generate an
aux-file alone by giving the command bibhtml2 *.html,
say; and you can merge a bbl-file into the bibliography file with the
command bibhtml2 bibliography.bbl. The command line option
--merge above may be more suitable
if you are calling this code from a script, as it requires you to
specify both the .bbl and the .html file it
is being merged with, (and so it is more robust, and more flexible).
On Unix, this works because the program is able to detect the name it was invoked under. This may be more difficult on other platforms. If so, please get in touch, with suggestions.
There are multiple sources of advice for how to cite electronic documents. The most formal are an ISO standard url:iso690, and the American Psychological Association’s guidance in Sect. 6.31 of apastyle. As well, there are older but still useful discussions in walker06 and emory95.
See also the documentation for the urlbst
package, which generates BibTeX style files for ordinary LaTeX
output (which also supports a @webpage entry type, and
url and lastchecked fields), and which
contains a similar list of references concerned with citing online
sources.
Bibhtml is available on CTAN at
biblio/bibtex/contrib/bibhtml/,
and at
http://purl.org/nxg/dist/bibhtml.
Download the distribution: bibhtml-2.0.2.tar.gz or bibhtml-2.0.2.zip.
Do let me know if you use this stuff. I’d be grateful for any bug reports, and bug fixes, and also for any comments on the clarity or otherwise of this documentation.
The project source code is hosted at bitbucket.org. You can check out the source code from there, and you are welcome to add issues to the bugparade.
This software is copyright, 1999, 2005, 2006, 2009, 2013 Norman Gray.
It is released under the terms of the GNU General Public Licence.
See the copyright declaration at the top of file bibhtml,
and the file LICENCE for the licence conditions.
You can find an online copy of the GPL at
http://www.gnu.org/copyleft/gpl.html.
If this licence is a problem for you, get in touch and we can work something out.
hrefprefix parameterisation to style files.xxx.arxiv.org is now the default e-prints host..bst style files, adding
@webpage entry type, and lastchecked field
to all entry types./usr/bin/env perl at the top of the
script, rather than /usr/bin/perl; this should be more
portable.<?bibhtml start?>, rather than magic comments (the
old behaviour is still temporarily supported).<?bibhtml insert?>
inserts the bibliography in-place.--help and --strip options.These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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