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Re:Ruby concepts part 2 (1 viewing) (1) Guest
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TOPIC: Re:Ruby concepts part 2
#4732
ShriNi (User)
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
REXML is a pure-Ruby XML processor conforming to the XML 1.0 standard.

It is a nonvalidating processor, passing all of the OASIS nonvalidating conformance tests.
 
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#4733
ShriNi (User)
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
REXML parser has the following advantages over other available parsers


1. It is written 100 percent in Ruby.

2. It can be used for both SAX and DOM parsing.

3. It is lightweight ie less than 2000 lines of code.
 
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
3. Methods and classes are really easy-to-understand.

4.SAX2-based API and Full XPath support.

5. REXML parser is shipped with Ruby installation and no separate installation is required
 
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#4735
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
We first have to parse our XML data in tree fashion.

We begin by requiring the rexml/document library; often we do an include REXML to import into the top-level namespace for convenience
 
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
SAX-like Parsing

To process a data, file in a stream-oriented way we will have to define a listener class whose methods will be the target of callbacks from the parser
 
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#4737
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Re:Ruby concepts part 2 3 Years, 10 Months ago Karma: 0  
An alternative way to view XML is XPath.

This is a kind of pseudo-language that describes how to locate specific elements and attributes in an XML document, treating that document as a logical ordered tree.
 
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