Xml2rfc generates RFCs and IETF drafts from document source in XML according to the dtd in RFC2629.
The IETF uses a specific format for the standards and other documents it publishes as RFCs, and for the draft documents which are produced when developing documents for publications. There exists a number of different tools to facilitate the formatting of drafts and RFCs according to the existing rules, and this tool, xml2rfc, is one of them. It takes as input an xml file which contains the text and meta-information about author names etc., and transforms it into suitably formatted output. The input xml file should follow the DTD given in RFC2629 (or it’s inofficial successor).
The current incarnation of xml2rfc provides output in the following formats: Paginated and unpaginated ascii text, html, nroff, and expanded xml. Only the paginated text format is currently (January 2013) accepable as draft submissions to the IETF.
To install a system-wide version of xml2rfc, download and unpack the xml2rfc distribution package, then cd into the resulting package directory and run:
$ python setup.py install
Alternatively, if you have the ‘pip’ command (‘Pip Installs Packages’) installed, you can run pip to download and install the package:
$ pip install xml2rfc
If you want to perform a local installation for a specific user, you have a couple of options. You may use python’s default location of user site-packages by specifying the flag --user. These locations are:
- UNIX: $HOME/.local/lib/python<ver>/site-packages
- OSX: $HOME/Library/Python/<ver>/lib/python/site-packages
- Windows: %APPDATA%/Python/Python<ver>/site-packages
You can additionally combine the flag --install-scripts with --user to specify a directory on your PATH to install the xml2rfc executable to. For example, the following command:
$ python setup.py install --user --install-scripts=$HOME/bin
will install the xml2rfc library and data to your local site-packages directory, and an executable python script xml2rfc to $HOME/bin.
The option --prefix allows you to specify the base path for all installation files. The setup.py script will exit with an error if your PYTHONPATH is not correctly configured to contain the library path the script tries to install to.
The command is used as follows:
$ python setup.py install --prefix=<path>
For further fine-tuning of the installation behavior, you can get a list of all available options by running:
$ python setup.py install --help
xml2rfc accepts a single XML document as input and outputs to one or more conversion formats.
Basic Usage: xml2rfc SOURCE [options] FORMATS...
The following parameters affect how xml2rfc behaves, however none are required.
Short Long Description -C --clear-cache purge the cache and exit -h --help show the help message and exit -n --no-dtd disable DTD validation step -N --no-network don’t use the network to resolve references -q --quiet dont print anything -v --verbose print extra information -V --version display the version number and exit -b BASENAME --basename=BASENAME specify the base name for output files -c CACHE --cache=CACHE specify an alternate cache directory to write to -D DATE --date=DATE run as if todays date is DATE (format: yyyy-mm-dd) -d DTD --dtd=DTD specify an alternate dtd file -o FILENAME --out=FILENAME specify an output filename
At least one but as many as all of the following output formats must be specified. The destination file will be created according to the argument given to –filename. If no argument was given, it will create the file(s) “output.format”. If no format is specified, xml2rfc will default to paginated text (--text).
Command Description --raw outputs to a text file, unpaginated --text outputs to a text file with proper page breaks --nroff outputs to an nroff file --html outputs to an html file --exp outputs to an XML file with all references expanded
- xml2rfc draft.xmlxml2rfc draft.xml --dtd=alt.dtd --basename=draft-1.0 --text --nroff --html
Version 2.12.0 (28 Oct 2018)
This release introduces the vocabulary v3 html formatter. In order to invoke this formatter, use the regular –html switch for html output, and add the –v3 switch to specify the v3 html formatter.
In v3 html formatter mode, xml2rfc accepts any valid xml2rfc input file, but since the actual formatter only understands the XML elements and attributes which have not been deprecated by RFC7991, it first applies the xml2rfc v2v3 converter in order to transform any deprecated markup to the elements and attributes it understands, and then applies the preptool in order to normalize the input before it starts rendering.
This is the first release of the v3 html formatter. It is quite feature complete, but has been tested only on a limited number of documents, so expect that there could be some rough edges.
In building the html v3 formatter, a number of rough edges were also discovered in the schema, RFC 7991; html format output, RFC 7992; and preptool specification, RFC 7998. The modifications applied in the code are described in draft-levkowetz-xml2rfc-v3-implementation-notes-05.
Version 2.11.1 (11 Oct 2018)
- Changed linebreaking for URLs in boilerplate and references to the old behaviour (don’t break), added stream abbreviations according to RFC5741, and changed EMail: to Email: in RFC mode.
- Added the align attribute for element <table> to the schema.
- Changed the v2v3 converter handling of the table align attribute, and fixed an issue with lost whitespace after <spanx>.
- Added STD to the seriesInfo sort order list.
- Added an error message for <date> month content that is neither a month name or a number.
Version 2.11.0 (07 Oct 2018)
This release is a result of the issue discussions on xml2rfc-dev, and attempt to follow the discussion and projected resolution of issues #36-#40. This results in a number of incompatibilities with previous releases, with respect to the v3 tools, as expected. The v2 tools are unaffected. Details:
- Changed the default table alignment to ‘center’, in order to match v2.
- Changed the <dl> ‘hanging’ attribute name to ‘newline’, based on the discussion of issue #38, in the schema, v2v3 converter and text formatter.
- Added an attribute ‘indent’ to <dl> in the schema, according to the discussion of issue #39. Added v2v3 and text support for the same.
- Added markers=’true’ in the v2v3 converter for sourcecode with markers, and tweaked render_sourcecode() to honour the ‘markers’ setting.
- Removed the disallowed align attribute on sourcecode.
- Removed <br> from the schema, according to the resolution of issue #37.
- Tweaked the handling of the document title to only reflow if needed, with some refactoring.
- Corrected the handling of the align attribute on <artwork> and <figure>.
- Changed <prepTime> to hold an RFC 3339 timestamp with seconds resolution.
- Fixed a couple of issues with v2v3 conversion warnings, and added source line information for all elements created during conversion.
- Fixed a buglet in sourcode rendering.
- Added a warning about lxml versions that lack validation error xpath information, and tweaked the warn() method.
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