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README
Free Pascal XML units
---------------------
DOM:
Implements most of the DOM level 1 specification and supports some of the
DOM level 2 extensions.
XMLRead:
Provides a simple XML reader, which can read XML data from a file or stream.
This simple parser will be replaced by a much improved one soon, which will be
able to handle different character encodings, namespaces and entity references.
(This parser reads the file directly, i.e. it doesn't support Unicode or
different charsets yet.)
Regarding entity references: The pre-defined entities "lt", "gt", "amp", "apos"
and "quot" are replaced by their normal value during reading. Other entity
references are stored as TDOMEntityReference nodes in the DOM tree.
Regarding whitespace handling: Whitespace directly after the beginning of a
tag is discarded, and sections of the XML file which contain only whitespace and
no other text content are discarded as well.
XMLWrite:
Writes a DOM structure as XML data into a file or stream. It can deal both with
XML files and XML fragments.
At the moment it supports only the node types which can be read by XMLRead.
Please note that the writer replaces some characters by entity references
automatically:
For normal text nodes, the following replacements will be done:
'<' => '<'
'>' => '>'
'&' => '&'
For attribute values, additionally '"' gets replaced by '"'. Single
apostrophes (') don't need to get converted, as values are already written using
"" quotes.
The XML reader (in xmlread.pp) will convert these entity references back to
their original characters.
XPath:
Just a XPath implementation. Should be fairly completed, but there hasn't been
further development recently.
---------------------
DOM:
Implements most of the DOM level 1 specification and supports some of the
DOM level 2 extensions.
XMLRead:
Provides a simple XML reader, which can read XML data from a file or stream.
This simple parser will be replaced by a much improved one soon, which will be
able to handle different character encodings, namespaces and entity references.
(This parser reads the file directly, i.e. it doesn't support Unicode or
different charsets yet.)
Regarding entity references: The pre-defined entities "lt", "gt", "amp", "apos"
and "quot" are replaced by their normal value during reading. Other entity
references are stored as TDOMEntityReference nodes in the DOM tree.
Regarding whitespace handling: Whitespace directly after the beginning of a
tag is discarded, and sections of the XML file which contain only whitespace and
no other text content are discarded as well.
XMLWrite:
Writes a DOM structure as XML data into a file or stream. It can deal both with
XML files and XML fragments.
At the moment it supports only the node types which can be read by XMLRead.
Please note that the writer replaces some characters by entity references
automatically:
For normal text nodes, the following replacements will be done:
'<' => '<'
'>' => '>'
'&' => '&'
For attribute values, additionally '"' gets replaced by '"'. Single
apostrophes (') don't need to get converted, as values are already written using
"" quotes.
The XML reader (in xmlread.pp) will convert these entity references back to
their original characters.
XPath:
Just a XPath implementation. Should be fairly completed, but there hasn't been
further development recently.