General Purpose XML Processing Post: 303026310

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Top Forums UNIX for Beginners Questions & Answers General Purpose XML Processing Post 303026310 by bakunin on Saturday 24th of November 2018 02:46:05 AM

11-24-2018

Registered User

Quote:

Originally Posted by rahuldaso

what is the main difference beetween html and xml?

XML is the principle of using markup - "tags" - to denote special parts of a text put into a standardised format: tags are denoted "<tagname>", etc.. (there would be other ways of marking up text, like:

Code:

This is normal text [italic=on]but[italic=off] the last word was different.

which is also using the markup-principle but is not XML.)

HTML is one very specific variety of XML, with a fixed set of tags that can occur and a fixed order of tags that have to be there:

Code:

<body>....</body>
<head>....</head>

would be an error in HTML because the head-tag has to come before the body-tag. In XML this would be perfectly OK because there is no such rule. In fact there is no list of tags which are allowed and no prescribed structure they are allowed to have like there is in HTML.

So, in short: every HTML text is a valid XML text too, but not every XML has to be calid HTML.

I hope this helps.

bakunin

bakunin

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xml-xread

XML-XREAD(1)							   User Commands						      XML-XREAD(1)

NAME

       xml-xread - Parse XML documents with entity and URI resolution

SYNOPSIS

       xml-xread [options] xmlfile

DESCRIPTION

       xml-xread  is  a simple command line tool for parsing and validating XML documents.  It is not an actual XML parser, it just wraps around a
       JAXP XMLReader, adding support for catalog-based entity and URI resolution.

OPTIONS

       -c catalogfile
	      Load a particular catalog file.  May be specified multiple times.

       -v     Perform a validating parse.  This is the default.

       -w     Perform a well-formed parse, not a validating parse.

       -N     Perform a namespace-aware parse.	This is the default.

       -n     Perform a namespace-ignorant parse.

       -d debuglevel
	      Set the debug level (an integer).  Warnings are shown if the debug level is set to greater than 2.

       -E maxerrors
	      Set the maximum number of errors to display.  The default is 10.

FILES

       /etc/java/resolver/CatalogManager.properties
	      The central catalog manager configuration file used by xml-xread.

SEE ALSO

       xml-parse(1), xml-resolver(1), java(1), the OASIS entity resolution technical committee	home  page  at	<http://www.oasis-open.org/commit-
       tees/entity/>.

AUTHOR

       Norman Walsh <Norman.Walsh@Sun.COM>

1.1								     July 2004							      XML-XREAD(1)