refdbxp - Online in the Cloud

PROGRAM:

NAME

refdbxp - converts short and full citation formats in SGML and XML documents containing
RefDB citations.

SYNOPSIS

refdbxp [-h] [-s] [-t input-format] refdbxp

DESCRIPTION

refdbxp allows the interconversion of the short and full notation of citations in the
supported SGML and XML documents of RefDB(7). See the RefDB manual (see below) for
information about the two notations. The conversion is round-trip safe, and it supports
mixing short and full notation in the same source document. Full-notation citations will
use the correct encoding for first and subsequent citations of the same reference.

Note
You should be aware that refdbxp is not a SGML or XML-aware tool. It is a simple text
replacement tool with some restrictions:

· If you comment out citation elements, they still count as if they were present
when the first/subsequent citation issue is resolved (refdbxp simply doesn't know
about the concept of a comment). In the following example, the citation in the
last line will be the only one transformed, but it will be formatted as a
subsequent citation of reference 9, not as the first citation:

<!-- <citation role="REFDB">9;</citation> first occurrence -->
<!-- other stuff inbetween -->
<citation role="REFDB">9;</citation><!-- second occurrence -->

· If you use SGML/XML tags within a comment and nest this comment ingeniously
between the start tag and the end tag of an element relevant for refdbxp, you
shoot yourself in the foot. You do not want to use code like this (why would you,
anyways?):

<citation role="REFDB"><!-- </citation> -->2;5;9;</citation>

· refdbxp does not include external entities. The whole document refdbxp is supposed
to convert needs to be in one chunk.

· refdbxp currently does not support multiple databases per document.

One way to work around the problem with comments is to create a copy of your master
source and use a small script to remove comments just before you process and transform
your text. To work around the fact that refdbxp does not treat external entities
correctly, use a tool like sgmlnorm (shipped with the Jade/OpenJade packages) to
preprocess the document. To work around the missing support of multiple databases,
well... just wait.

OPTIONS

-h
Prints a command synopsis on the screen and exits.

-s
Create citations using the short notation. The default is to use the full notation.

-t input-format
Select the type of input. Currently supported values are db31 (DocBook SGML version
3.1 or later), db31x (DocBook XML, all versions), and teix (TEI XML).

EXAMPLE

Lets first try the most common usage of refdbxp. The following command expands all
citations, regardless of whether they are written in short or full notation, to the full
notation and writes the result to a new file foo.full.sgml. The input from foo.sgml is
assumed to be DocBook SGML:

~$
refdbxp -t db31 < foo.sgml > foo.full.sgml

The following command goes the other way. This time we convert all citations of a TEI XML
document, regardless of whether they are written in short or full notation, to the short
notation and write the result to a new file:

~$
refdbxp -t teix -s < bar.xml > bar.short.xml

The last example shows how to treat documents that consist of several files. The DocBook
SGML master file foo_master.sgml includes several other subdocuments as external entities.
Treating those files individually with refdbxp would screw up things as the
first/subsequent citation issue would not be treated correctly and collisions of
automatically created element IDs would result. The following command comes to the rescue
and expands all citations in the document correctly:

~$
osgmlnorm -dn /usr/local/share/sgml/docbook/4.1/docbook.dcl foo_master.sgml | refdbxp -t db31 > foo.full.sgml

Note
You may have realized that there's two small problems with this procedure. First,
using (o)sgmlnorm will also include the external entity that contains (or will contain
once it's created) the bibliography element created by refdb. One way around this is
to use a mock file that just contains the entity reference in a comment. Lets assume
your document foo.sgml wants to include the bibliography by using the entity
declaration %bibliography; at the proper location. The entity is declared in the
declaration subset at the top of your sourcefile as the external file foo.bib.sgml.
Then you should create a file foo.bib.sgml with the following contents:

<!--&bibliography;-->

We have to outcomment the entity reference as these may be nested, i.e. the parser
would try to replace this entity again and fail because the entity is already opened.
After the conversion you just need to uncomment the parameter entity. If you like long
commands, you could do this on the fly like this:

~$
osgmlnorm -dn /usr/local/share/sgml/docbook/4.1/docbook.dcl foo_master.sgml | refdbxp -t db31 | sed 's%<!--\&bibliography;-->%\&bibliography;%' > foo.full.sgml

Second, (o)nsgmlnorm will not output the internal declaration subset that we need at
least to declare the parameter entity for the bibliography. You could fix this with a
sed command along the lines of the command shown above or add it back manually.

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