Provided by: rxp_1.5.0-2ubuntu1_amd64 
NAME
rxp - XML parser program
SYNOPSIS
rxp [ -abemnNRsStvVx4 ] [ -o b|p|0|1|2|3|i|d ] [ U 0|1|2 ] [ -c encoding ] [ url ]
DESCRIPTION
rxp reads and parses XML from the url (or standard input if none is provided) and writes
it to standard output, optionally expanding entities, defaulting attributes, and
translating to a different output encoding.
rxp accepts XML 1.0 and 1.1, and the corresponding versions of XML namespaces. It
implements the Oasis XML catalog specification.
Common option combinations are -Nxs to check a document for well-formedness and namespace
well-formedness, and -VNxs to also check for DTD-validity.
OPTIONS
-a Insert declared default values for omitted attributes.
-v Be verbose.
-V Validate the document. Repeating this option will make the program treat validity
errors as well-formedness errors, and exit after the first validity error
(otherwise a warning will be printed for each one).
-d Read the whole DTD (internal and external parts) regardless of any standalone
declaration. Otherwise a declaration "standalone='yes'" will prevent the external
part from being read (unless validation is selected).
-N Enable XML namespace support. The document will be checked for correct namespace
syntax, and if -b is specified qualified element and attribute names will be
displayed with their URIs.
-R The value of this flag is a time limit in seconds, after which the program will
abort. This is to protect against denial-of-service attacks using malicious
documents.
-S Keep track of xml:space attributes. This will only affect output when -b is
specified.
-e Obsolete, do not use.
-E Do not expand entity references (opposite of old -e flag)
-s Be silent (that is, suppress output). Useful for benchmarking or if you just want
to see the error messages.
-b Print output as "bits".
-n Treat the input as normalised SGML rather than XML. Not intended for general use.
-o If this flag is p, output is in the default (plain) format. If it is b, output is
printed as "bits" (equivalent to -b). If it is 0, output is suppressed
(equivalent to -s). If it is 1, 2 or 3, output is in first, second or third
canonical form. If it is i, output is a dump of the document's infoset. If it is
d, output is in a form suitable for use with "diff"; in particular attributes are
sorted into alphabetical order.
-m Merge PCData across entity references. This will only affect the output when -b is
specified.
-t Read in the input as a tree, rather than bits. Should make no difference to the
output.
-u base_uri
Use the specified base URI when resolving system identifiers.
-U This flag controls Unicode normalization checking and is only relevant when parsing
XML 1.1 documents. If it is 0, no checking is done. If it is 1, rxp checks that
the document is fully normalized as defined by the W3C character model. If it is
2, the document is checked and any unknown characters (which may be ones
corresponding to a newer version of Unicode than rxp knows about) will also cause
an error.
-x Strict XML mode. This suppresses some warnings (eg entity redefinitions) but
treats all XML well-formedness errors as fatal. This flag implies the -a flag, and
sets the output encoding to UTF-8 unless the -c flag is given. It sets the output
format to first canonical form unless the -o, -b or -s flag is given.
-c encoding
Produce output in the specified character encoding. Known encodings include
ISO-8859-1, UTF-8, ISO-10646-UCS and UTF-16. 16-bit encoding names my be suffixed
with -B or -L to specify big- or little-endian byte order (the default is the host
byte order). If no -c or -x option is given, output is in the same encoding as the
input document.
-D name sysid
Force use of the document type specified by sysid. The root element name for
validation is name. Any DTD in the document is ignored. This flag does not imply
validation; use -V if required.
-i Do xml:id processing. Attributes named xml:id are recognised as IDs even if not
declared.
-I The same as -i, but in addition xml:id attributes are checked for uniqueness.
-z Use a shorter format for error messages. Particularly useful when using the parser
in Emacs compilation mode, so that Emacs can find the error location.
-4 Use pre-fifth-edition rules for XML 1.0. XML 1.0 fifth edition extends the set of
allowed name characters to match XML 1.1, and allows unrecognised version numbers
of the form 1.x to be treated as 1.0. the -4 flag disables these changes.
EXIT STATUS
If the -V flag is given, and the document is well-formed but not valid, 2 is returned. If
the document is not well-formed, or a system error occurs, 1 is returned. Otherwise 0 is
returned. Since the parser can expand external entities even when not validating, it
treats certain errors which are technically validity errors as well-formedness errors. If
-x is not specified, some well-formedness errors produce only warnings and do not affect
the exit status.
ENVIRONMENT
If the environment variable XML_CATALOG_FILES is set, XML catalog processing is enabled.
A catalog can be used to map system and public identifiers to local files. In particular,
this allows copies of common DTDs to be kept locally, so that rxp does not have to fetch
them over the internet. XML_CATALOG_FILES should be set to a space-separated list of
catalog files. The variable XML_CATALOG_PREFER may be set to public or system to set the
initial mode for catalog processing; the default is system.
If the variable RXPURL is set, it is used as the URL of the document to parse. This may
be useful in CGI scripts and the like to avoid shell parsing of a user-supplied argument.
The variable http_proxy can be used to specify a proxy for HTTP connections. The syntax
is hostname[:port].
RXP release 1.4.0 RXP(1)