avatar
c*y
1
XML is a markup language for documents containing structured
information.
Structured information contains both content (words, pictures, etc.)
and some indication of what role that content plays (for example,
content in a section heading has a different meaning from content in a
footnote, which means something different than content in a figure
caption or content in a database table, etc.). Almost all documents
have some structure.
A
avatar
l*h
2
If you're at all acquainted with HTML (HyperText Markup Language) or
SGML (Standard Generalized Markup Language), XML (eXtensible Markup
Language) will look pretty familiar to you. It's a markup language for
presenting documents on the Web that relies on tags like HTML does.
The simple syntax makes it easy to process by machine while remaining
understandable to people. But where HTML uses tags to describe a
document's appearance -- like < i > text < /i > -- XML tags describe
the data itself. An
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