NAME
    osx - An SGML System Conforming to International Standard ISO 8879 --
    Standard Generalized Markup Language

SYNOPSIS
    osx [-Cehilprvx] [-bencoding] [-ccatalog_file] [-Ddirectory] [-ffile] [-wwarning_type] [-xxml_output_option...] [sysid...]

DESCRIPTION
    osx converts SGML to XML. osx parses and validates the SGML document
    contained in sysid and writes an equivalent XML document to the stan-
    dard output. osx will warn about SGML constructs which  have no XML
    equivalent.

OPTIONS
    The following options are available:

  -bencoding

    Use encoding for output. By default osx uses UTF-8.

  -cfile

    Use the catalog entry file file.

  -C  This has the same effect as in onsgmls(1).

  -Ddirectory

    Search directory for files specified in system identifiers. This
    has the same effect as in onsgmls(1).

  -e  Describe open entities in error messages.

  -ffile

    Redirect errors to file. This is useful mainly with shells that
    do not support redirection of stderr.

  -iname

    This has the same effect as in onsgmls(1).

  -v  Print the version number.

  -wtype

    Control warnings and errors according to type. This has the same
    effect as in onsgmls(1).

  -xxml_output_option

    Control the XML output according to the value of xml_out-
    put_option as follows:

    no-nl-in-tag Don't use newlines inside start-tags. Usually osx
    uses newlines inside start-tags so as to reduce the probability
    of excessively long lines.

    id Output attribute declarations for ID attributes.

    notation Output declarations for notations.

    ndata Output declarations for external data entities. XML
    requires these to be NDATA. osx will warn about CDATA and  SDATA
    external data entities and output them as NDATA entities.

    cdata Use XML CDATA sections for CDATA marked sections and for
    elements with a declared content of CDATA.

    comment Output comment declarations. Comment declarations in the
    DTD will not be output.

    lower Prefer lower case. Names that were subjected to upper-case
    substitution by SGML will be folded to lower case. This does not
    include reserved names; XML requires these to be in upper-case.

    pi-escape Escape &<> in the contents of processing instructions
    using the amp, lt and  gt entities. This allows processing
    instructions to contain the string >?, but requires that appli-
    cations handle the escapes.

    empty Use the <e/> syntax for element types e declared as EMPTY.

    attlis Output an ATTLIST declaration for every element specify-
    ing the type of all attributes. The default will always be
    #IMPLIED.

    Multiple -x options are allowed.

SEE ALSO
   onsgmls(1)

AUTHORS
    James Clark, Jane Peers <jane.peers@looksystems.co.uk>.