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Man Pages


Manual Reference Pages  -  RXP (1)

NAME

rxp - XML parser program

CONTENTS

Synopsis
Description
Options
Exit Status
Environment

SYNOPSIS

rxp [ -abemnNRsStvVx ] [ -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.

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. The variable 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].

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--> RXP (1) RXP release 1.4.0

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