JW(1)                                                                    JW(1)

       jw, docbook2dvi, docbook2html, docbook2man, docbook2pdf, docbook2ps,
       docbook2rtf, docbook2tex, docbook2texi, docbook2txt - (Jade Wrapper)
       converts SGML files to other formats

       jw [ -f frontend | --frontend frontend ]
           [ -b backend | --backend backend ]
           [ -c file | --cat file ]
           [ -n | --nostd ]
           [ -d file|default|none | --dsl file|default|none ]
           [ -l file | --dcl file ]
           [ -s path | --sgmlbase path ]
           [ -p program | --parser program ]
           [ -o directory | --output directory ]
           [ -V variable[=value] ]
           [ -u | --nochunks ] [ -i section | --include section ]
           [ -w type|list | --warning type|list ]
           [ -e type|list | --error type|list ]
           [ -h | --help ] [ -v | --version ]

       docbook2dvi SGML-file

       docbook2html SGML-file

       docbook2man SGML-file

       docbook2pdf SGML-file

       docbook2ps SGML-file

       docbook2rtf SGML-file

       docbook2tex SGML-file

       docbook2texi SGML-file

       docbook2txt SGML-file

       The jw shell script allows to convert a DocBook file (or some other
       SGML-based format) to other formats (including HTML, RTF, PS and PDF)
       with an easy-to-understand syntax. It hides most of Jade's or OpenJade
       complexity and adds comfortable features.

       Other scripts like docbook2html, docbook2rtf or docbook2ps provide
       different ways of calling jw that might be easier to remember.

       For the moment, jw does not handle XML, but only SGML.

       This utility assumes that several other components are installed. The
       list includes:

       • the ISO character entities for SGML

       • James Clark's DSSSL engine, jade, or an equivalent parser like

       • the DocBook DTD from the OASIS consortium

       • Norman Walsh's DocBook modular style sheets (or some other set of
         DSSSL style sheets)

       • Sebastian Rahtz's jadetex set of TeX macros for jade (for backends
         intended to "printing" formats like PDF, RTF or PostScript)

       • A perl interpreter (for backends that use perl)

       • SGMLSpm from CPAN (for backends that use sgmls)

       • Lynx HTML browser (for the txt backend)

       The jw script is basically called like this:

       jw mydoc.sgml

       where mydoc.sgml is a SGML file.

       The command line above uses default options: it converts from DocBook
       (the default frontend) to HTML (the default backend), does not put the
       result in a subdirectory (unless specified otherwise in the style
       sheets), etc.

       In this example, the "mydoc" file name as well as the ".sgml" extension
       can be replaced by anything else. Current extensions for SGML DocBook
       files include ".sgml", ".sgm", ".docbook", and ".db". The processed
       file mydoc.sgml can be in any other directory than the current one.

       Here we have chosen to generate HTML output. In fact we can use any of
       the backends stored in the backends/ subdirectory of the DocBook-utils
       distribution directory (usually /usr/share/sgml/docbook/utils-0.6.14).
       Similarly, you can use any frontend defined in the frontends/
       subdirectory to convert from another input format.

       This sample command creates one or many HTML files with arbitrary file
       names in the current directory. This default behavior can be changed
       through command line options and/or customization style sheets.

       The following options apply to the conversion script:

          -f frontend | --frontend frontend
              Allows to specify another frontend than default docbook.  The
              list of currently available frontends is:

                     Converts docbook with Norman Walsh's style sheets. This
                     frontend searches in the subdirectories of the base SGML
                     directory for a file named html/docbook.dsl or
                     print/docbook.dsl (depending on the backend's type: html
                     or print).

          -b backend | --backend backend
              Allows to specify another backend than default HTML. The list of
              currently available backends is:

              dvi    Converts to DVI (DeVice Independant files) by calling
                     Jade or OpenJade.

              html   Converts to HTML (HyperText Markup Language) by calling
                     Jade or OpenJade.

              man    Converts a refentry to a Unix manual page by calling
                     docbook2man. Does not work with other SGML document types
                     than DocBook.

              pdf    Converts to PDF (Portable Document Format) by calling
                     Jade or OpenJade.

              ps     Converts to PostScript by calling Jade or OpenJade.

              rtf    Converts to RTF (Rich Text Format) by calling Jade or
                     OpenJade. The resulting file can then be inported into MS
                     Word or one of its Linux replacement programs.

              tex    Converts to TeX by calling Jade or OpenJade.

              texi   Converts to GNU TeXinfo pages by calling docbook2texi.
                     Does not work with other SGML document types than

              txt    Converts to a bare text file by calling Jade or OpenJade,
                     then Lynx.

          -c file | --cat file
              Allows to use an extra SGML Open Catalog that will list other
              files like customization style sheets, adaptations to the
              DocBook Document Type Definition, special character entities,
              etc. This catalog is added to the list of catalogs determined by
              the script (see option --nostd below)

          -n | --nostd
              Do not use the standard SGML Open Catalogs. Normally, the
              standard catalogs list is determined like this:

              • if the centralized catalog exists, then use it. The
                centralized catalog is a list of all catalogs that might be
                necessary that usually resides in /etc/sgml. Its name is
                provided by the frontend, for example the docbook frontend
                returns /etc/sgml/

              • Otherwise, take all the files named catalog from the
                subdirectories of the SGML base directory (usually
       This option is useful in conjunction with the --cat option to use only
       the catalogs that are specified on the command line.

          -d file|default|none | --dsl file|default|none
              Allows to use a customized style sheet instead of the default

              A "target" starting with a hash mark "#" can be appended to the
              file name. As a result, only the corresponding part of the style
              sheet is executed (the "style specification" whose
              "identificator" is equal to the target's name). A common use of
              this mechanism is to define "#html" and "#print" targets to
              trigger the corresponding part  of a replacement style sheet
              which is common for both HTML and printout conversion.

              By replacing the file name with "default", the default style
              sheet provided with the frontend is used. For example, the
              docbook frontend returns ./docbook.dsl#html (or
              ./docbook.dsl#print) in the SGML base directory.

              By replacing the file name with "none", no replacement style
              sheet is used, not even the default style sheet. The style sheet
              which is used is also determined by the frontend. For example,
              the docbook frontend returns Norman Walsh's html/docbook.dsl (or
              print/docbook.dsl) found somewhere below the SGML base

              If no --dsl option is specified, then "--dsl default" is used.

          -l file | --dcl file
              Allows to use a customized SGML declaration instead of the
              default one. The file name of the default SGML declaration is
              not set for SGML files, and is set to xml.dcl in the SGML base
              directory for XML files.

          -s path | --sgmlbase path
              Allows to use another location for the SGML base directory. This
              is the directory below which all SGML DTDs, style sheets,
              entities, etc are installed. The default value is

          -p program | --parser program
              Specify the parser to use (Jade or OpenJade) if several are
              installed. If this option is not specified, the script first
              tries to use Jade, then it tries OpenJade.

          -o directory | --output directory
              Set output directory where all the resulting files will be
              stored. If the style sheets define a subdirectory where to store
              the resulting files too, the subdirectory defined by the style
              sheets will be placed below the subdirectory defined by this

          -V variable=[value]
              Set a variable (to a value, if one is specified).

          -u | --nochunks
              Output only one big file. This option is useful only when
              generating HTML, because the output can be split into several
              files. This option overrides the setting that may be done in the
              style sheets.

          -i section | --include section
              Declare a SGML marked section as "include". A SGML marked
              section is a kind of conditional part of a document. If it is
              declared "ignore", it will be left ignored, otherwise it will be
              processed. An example of such a marked section would be:

                   <DOCTYPE mydoc [
                     <!ENTITY % confidential "ignore">
                     <![ %confidential [ Some confidential text... ]]>

          -w type|list | --warning type|list
              Enables or disables the display of given types of warnings.
              Several -w options might be entered on the command line.
              Warning types that start with "no-" disable the corresponding
              warnings, the other types enable them.

              If the warning type is replaced with "list", then a list of
              allowed warning types is displayed.

          -e type|list | --error type|list
              Disables given types of errors.  Several -e options might be
              entered on the command line.  All error types start with "no-".

              If the error type is replaced with "list", then a list of
              allowed error types is displayed.

          -h | --help
              Print a short help message and exit

          -v | --version
              Print the version identifier and exit

              Centralized SGML open catalog. This file name might vary if
              another frontend than docbook is used.

              The various backends

              The various frontends

              The various helper scripts like docbook2man or docbook2texi

       Eric Bischoff (jw shell script and a few backends), Jochem Huhmann (the
       man and texi backends)

SEE ALSO,, install-catalog(8),
       nsgmls(1), docbook-utils homepage

                               11 February 2004                          JW(1)