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.TH "HXMKBIB" "1" "10 Jul 2011" "7.x" "HTML-XML-utils"
.SH NAME
hxmkbib \- create bibliography from a template
.SH SYNOPSIS
.B hxmkbib
.RB "[\| " \-s
.IR separator " \|]"
.RB "[\| " \-a
.IR auxfile " \|]"
.RB "[\| " \-n
.IR maxauthors " \|]"
.RB "[\| " \-r
.IR moreauthors " \|]"
.IR bibfile " [\| " templatefile " \|]"
.SH DESCRIPTION
.LP
The
.B hxmkbib
commands reads a list of bibliographic keys (labels) from
.IR auxfile ,
finds the corresponding entries in
.I bibfile
and creates a bibliography, using
.I templatefile
as a model. The
.I auxfile
may, e.g., have been created by
.BR hxcite (1).
It consists of labels, one per line. The
.I bibfile
is a
.BR refer (1)
style database.
.B hxmkbib
looks for entries with a
.B %L
field equal to a key in the
.IR auxfile .
.PP
The
.I templatefile
consists of three parts:
.TP 10
.B preamble
The preamble is the part up to the first occurrence of
.BR %{ .
The preamble is copied to the output unchanged, except for occurrences
of
.BR % .
To create a single % in the output, there must be two in the preamble
(%%). All other occurrences of % followed by another letter are not
copied, but are collected into a string called the "sort order." and
use to sort the entries, as explained below.
.TP
.B template
The template starts with
.B %{L:
and ends with a matching
.BR %} .
The text in between is copied as often as there are bibliographic
entries in
.I bibfile
that correspond to keys in
.IR auxfile .
Variables in the template are replaced by the corresponding field in
the bibliographic entry: all occurrences of
.BI % x
will be replaced by the field
.BI % x
of the entry. Parts of the text may be enclosed in
.BI %{ x :
and
.BR %} .
This means that the text in between should only be output if the
current entry has a field
.IR x .
Text that is enclosed in
.BI %{! x :
and
.B %}
will only be output if the entry does
.B not
have a field
.IR x .
Both kinds of conditional sections may also be nested.
.TP
.B postamble
The text after the
.B %}
is copied unchanged to the output, after all bibliographic entries
have been processed.
.PP
By default bibliographic entries are copied to the output in the order
of the keys in
.IR auxfile ,
except that keys that occur more than once are only used once. If the
preamble contains occurrences of
.BI % x
(where
.I x
is neither "%" nor "{") then these together determine the sort order.
E.g., if the preamble contains %A%D then the entries will be sorted
first on field A (author) and then on field D (date).
.PP
Here is an example of template file that creates a bibliography in
HTML format:
.d
Bibliography
%{L:
- %{A:%A%}%{!A:%{E:%E%}%{!E:%{Q:%Q%}%{!Q:-%}%}%}
- %{B:"%T"
in: %{E:%E (eds)
%}%B.%{V: %V.%}
%}%{J:"%T"
in: %{E:%E (eds)
%}%J.%{V: %V.%}%{N: %N.%}%{P: pp. %P.%}
%}%{!B:%{!J:%T.
%}%}%{I:%I.
%}%{D:%D.
%}%{C:%C.
%}%{R:%R.
%}%{S:%S.
%}%{O:%O
%}%{U:%U
%}
%}
.e
This template starts with four lines of preamble, including the sort
string %A%D on line 3. The sort string itself will not be output, but
the rest of the comment will.
.PP
From the line
.B %{L:
to the line
.B %}
is the template. E.g., the line that
starts with
.B Gosling, James; Joy, Bill; Steele, Guy
The Java language specification.
Addison-Wesley.
1998.
http://java.sun.com/docs/books/jls/index.html
.e
.SH OPTIONS
The following options are supported:
.TP 10
.BI \-a " auxfile"
The file that contains the list of keys (labels) for which
bibliographic entries should be printed. If the option is absent, the
name of this file is formed from the
.I templatefile
argument by removing the last extension and adding
.BR .aux .
If no
.I templatefile
is given, the default
.I auxfile
is
.BR aux.aux .
.TP
.BI \-s " separator"
If there are multiple authors or editors in an entry, their names will
be listed with a separator in between. By default the separator is ";
" (i.e., a semicolon and a space). With this option the separator can
be changed.
.TP
.BI \-n " maxauthors"
If there are more than
.I maxauthors
authors in an entry, only the first author will be printed and the
others will be replaced by the string
.IR moreauthors .
The default is 3.
.TP
.BI \-r " moreauthors"
The string to print if there are more than
.I maxauthors
authors. The default is "et al.".
.SH OPERANDS
The following operands are supported:
.TP 10
.I bibfile
The name of a bibliographic database must be given. It must be a file
in
.BR refer (1)
format and every entry must have at least a
.B %L
field, which is used as key. (Entries without such a field will be
ignored.)
.TP
.I templatefile
The name of the input file is optional. If absent,
.B hxmkbib
will read the template from stdin.
.SH "DIAGNOSTICS"
The following exit values are returned:
.TP 10
.B 0
Successful completion.
.TP
.B > 0
An error occurred. Usually this is because a file could not be opened
or because the %{ and %} pairs are not properly nested.
Very rarely it may also be an out of memory error. Some of the
possible error messages:
.TP
.I missing ':' in pattern
.B hxmkbib
found a %{ but the second or third letter after it was not a colon.
.TP
.I no '%{' in template file
The template file is unusable, because it contains no template.
.TP
.I unbalanced %{..%} in pattern
There are more %{ than %}.
.SH "SEE ALSO"
.BR asc2xml (1),
.BR hxcite (1),
.BR hxnormalize (1),
.BR hxnum (1),
.BR hxprune (1),
.BR hxtoc (1),
.BR hxunent (1),
.BR xml2asc (1),
.BR UTF-8 " (RFC 2279)"
.SH BUGS
Sorting is primitive: the program doesn't parse dates or names and
simply sorts "Jan 2000" under the letter "J" and "Albert Camus" under
the letter "A". For the moment the only work-around is to put names in
the
.I bibfile
as "Camus, Albert".
.PP
The program simply lists all authors or editors. There is no way to
generate an "et. al." after the third one. The work-around is to put
the "et. al." in the
.IR bibfile .
Putting commas between the first authors and the word "and" before the
final one is also not possible.
.PP
The program doesn't try to interpret names of authors or editors and
they cannot be reformatted. It is impossible to write a name that is
specified as "Sartre, Jean-Paul" in the
.I bibfile
as "J. Sartre" or as "Jean-Paul Sartre" in the output.
.PP
There is no way to suppress a period after a field if the field
already ends with a period. E.g., the template "%{A:A.%}" may generate
"A. Person Jr.." if the author is "A. Person Jr." The only option is
to either not put periods in the
.IR bibfile
or not put periods in the template.
.PP
Entries in the
.I bibfile
can only be used if they have a
.B %L
(label) field. The program cannot find entries by searching for
keywords, like
.BR refer (1).
.PP
.B hxmkbib
will replace any ampersands (&) and less-than (<) and greater-than (>)
signs that occur in the
.I bibfile
by their XML entities & < > on the assumption that the
template is HTML/XML. This may not be appropriate for other formats.