NAME

       xmlto - apply an XSL stylesheet to an XML document

SYNOPSIS

       xmlto [-o output_dir] [-x custom_xsl] [-m xsl_fragment] [-v] [-p postprocessor_opts]
             [--extensions] [--searchpath path] [--skip-validation]
             [--stringparam paramname=paramvalue] [--noclean] [--noautosize] [--noextensions]
             [--with-fop] [--with-dblatex] {format} {file}

       xmlto {[--help] | [--version]}

DESCRIPTION

       The purpose of xmlto is to convert an XML file to the desired format using whatever means
       necessary. This may involve two steps:

        1. The application of an appropriate XSL stylesheet using an XSL-T processor.

        2. Further processing with other tools. This step may not be necessary.

       To decide which stylesheet to use and what, if any, needs to be done to post-process the
       output, xmlto makes use of format scripts, which are simple shell scripts that xmlto calls
       during the conversion.

       The appropriate format script is selected based on the type of XML file and the desired
       output format.  xmlto comes with some format scripts for converting DocBook XML files to a
       variety of formats. You may specify your own format script by using an absolute filename
       for format on the command line.

       Firstly, if xmlto has not been told explicitly which stylesheet to use (with the -x
       option), the format script will be called with $1 set to stylesheet. The environment
       variable XSLT_PROCESSOR contains the base name of the executable that will be used to
       perform the XSL-T transformation (for example xsltproc). The format script should write
       the name of the stylesheet to use to standard output and exit successfully, or exit with a
       non-zero return code if there is no appropriate stylesheet to use (for example, if the
       only available stylesheet is known not to work with the XSL-T processor that will be
       used). If nothing is written to standard output but the script exits successfully, no
       XSL-T transformation will be performed.

       Secondly, after an XSL-T processor has been run using the stylesheet, the format script
       will be called again, this time with $1 set to post-process. The format script should
       perform any necessary steps to translate the XSL-T processed output into the desired
       output format, including copying the output to the desired output directory. For
       post-processing, the format script is run in a temporary directory containing just the
       processed output (whose name is stored in XSLT_PROCESSED and whose basename is that of the
       original XML file with any filename extension replaced with .proc).  INPUT_FILE is set to
       the name of the original XML file, OUTPUT_DIR is set to the name of the directory that the
       output (and only the output) must end up in, and SEARCHPATH is set to a colon-separate
       list of fallback directories in which to look for input (for images, for example). If this
       step is unsuccessful the format script should exit with a non-zero return code.

OPTIONS

       -v
           Be verbose (-vv for very verbose).

       -x stylesheet
           Use stylesheet instead of asking the format script to choose one.

       -m fragment
           Use the provided XSL fragment to modify the stylesheet.

       -o directory
           Put output in the specified directory instead of the current working directory.

       -p postprocessor_opts
           Pass postprocessor_opts to processing stages after stylesheet application (e.g.  lynx
           or links when going through HTML to text, or xmltex when going from through TeX to
           DVI). If -p is specified a second time, the options specified will be passed to
           second-stage postprocessing; presently this is only applicable when going through
           xmltex and dvips to PostScript.

       --extensions
           Turn on stylesheet extensions for the tool chain in use (use.extensions is turned on).
           The variables turned on are the ones used by Norman Walsh's DocBook XSL stylesheets.

       --searchpath path
           Add the colon-separated list of directories in path as fallback directories for
           including input.

       --skip-validation
           Skip the validation step that is normally performed.

       --stringparam paramname=paramvalue
           Pass a named parameter paramname with value paramvalue to stylesheet from the command
           line.

       --noclean
           Temporary files are not deleted(their names are shown and kept in tmp directory). It
           could help with analyzing problems.

       --noautosize
           By default, some XSL variables are overriden by autodetection (page.width and
           page.height for paperconf (libpaper) use, paper.type for locale-based (LC_PAPER)
           selection). With this option, xmlto doesn’t use this autodetection and user is able to
           modify defaults himself (either via default param.xsl modification or by user-defined
           XSL fragment).

       --noextensions
           By default, xmlto enables XSL params passivetex.extensions for passivetex backend and
           fop.extensions and fop1.extensions for fop backend. This usually produces better
           results. If you for some reason don't want to use these parameters, just disable them
           using this option.

       --with-fop
           Use fop for formatting. It is an experimental option, expects fop in specific
           location(detected at configured time), could be changed manually in xmlto script by
           modification of FOP_PATH

       --with-dblatex
           Use dblatex for formatting. It is an experimental option, expects dblatex in specific
           location(detected at configured time), could be changed manually in xmlto script by
           modification of DBLATEX_PATH

       --help
           Display a short usage message. It will describe xmlto's options, and the available
           output formats.

       --version
           Display the version number of xmlto.

ENVIRONMENT

       XSLT_PROCESSOR
           Base name of the executable that will be used to perform the XSL-T transformation
           (default: xsltproc(1)).

       TMPDIR
           Directory, where to create temporary stylesheets (default: /tmp).

DIAGNOSTICS

       0
           Everything went fine. This is the expected exit code.

       1
           xmlto was called with insufficient arguments.

       2
           mktemp(1) failed to create a file/directory. Make sure /tmp or TMPDIR is writable.

       3
           xmlto failed to find some binary on configured location. Make sure that all required
           packages are installed and paths in xmlto script are set properly.

       10+(Validation non-zero error code)
           xmlto tried to validate a xml document, but validation failed. For better diagnostic,
           validation output and xmllint exit code is provided. Consider either fixing your
           document or using --skip-validation.

EXAMPLES

       To convert a DocBook XML document to PDF, use:

           xmlto pdf mydoc.xml

       To convert a DocBook XML document to HTML and store the resulting HTML files in a separate
       directory use:

           xmlto -o html-dir html mydoc.xml

       To convert a DocBook XML document to a single HTML file use:

           xmlto html-nochunks mydoc.xml

       To modify the output using an XSL fragment use:

           xmlto -m ulink.xsl pdf mydoc.xml

       To specify which stylesheet to use (overriding the one that the format script would
       choose) use:

           xmlto -x mystylesheet.xsl pdf mydoc.xml

AUTHORS

       Tim Waugh <twaugh@redhat.com>
           Original author, maintainer until 0.0.18

       Ondřej Vašík <ovasik@redhat.com>
           Maintainer since 0.0.19

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