How to Processing XML data

Osman84 · #1 04-03-2010

Hi all,

I am using XML services. When i store data in XML file, i usually need to carefully in order to secure and easy way to make XML parser confusion encoded. Special XML markup characters need to be converted to a number of entities, if we personally write in a text editor XML, this requirement may be very troublesome. I want to know that how to avoid this trouble. Please advice. Please suggest.

Praetor · #2 04-03-2010

you can use the CDATA area to store data directly, without having to worry about encoding issues. By the XML is a widely supported Internet standard for encoding in a special way of structured data. In fact, XML-encoded data can be decoded by any programming language, one can even use a standard text editor to read or write XML data. Many applications, especially modern standards-compliant Web browser, you can deal directly with XML data. Check and reply.

Katty · #3 04-03-2010

If you have ever tried some of the HTML or XML into an XML document (perhaps as documentation), then as long as you are trying to contain an example, we will encounter this problem. XML document, the text is usually resolved to character data, or (according to document type definition terminology) is called PCDATA. XML special characters (&, "and") in the PCDATA can be identified and used to resolve element names and entities. CDATA (character data) areas are parser as a data block, allowing you to contain any characters in the data stream. All the best.

kelfro · #4 04-03-2010

XML document, the text is usually resolved to character data, or according to document type definition terminology is called PCDATA. XML special characters (&, "and") in the PCDATA can be identified and used to resolve element names and entities. CDATA (character data) areas are parser as a data block, allowing you to contain any characters in the data stream. CDATA marked the beginning of the region is a special sequence of <! [CDATA [An end tag is ]]> Sequence. Anything between these tags will be intact through the XML parser. Check and reply.

Modifier · #5 04-03-2010

If you have already seen a number of Web pages with embedded JavaScript, then you also see the practical application of CDATA. XHTML elements in the CDATA of the <script>

Code:

<? xml version = "1.0" encoding = "UTF-8"?>
<! DOCTYPE html PUBLIC "- / / W3C / / DTD XHTML 1.0 Strict / / EN"
         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv = "Content-Type"
content = "application / xhtml + xml; charset = utf-8" />
<title> CDATA Section in Action </ title>
<script type="text/javascript">
/ / <! [CDATA [
function nowWeAreSafe (x, y, z) (
    / / Without the CDATA section, these would cause
    / / Parsing errors:
    if (x <y & & y> z) (
        return y -;
    )
    return 0;
)
/ /]] "
</ script>
</ head>
<body>
...
</ body>
</ html>

absolute55 · #6 04-03-2010

There are also some limitation of CDATA that is the browser is usually not XML parser. The browser does not reliably deal with HTML or XHTML in the CDATA (if any). CDATA regions can appear anywhere in XHTML (as in any XML application does), but in practice, these CDATA areas are usually ignored. Either lost their contents (CDATA region disappeared from the normal DOM), or displayed as text and the tags with some free character. To see this effect, please check one page, which displays sample passages, with visible marks (using the entity) of the sample paragraphs and try to use CDATA shows a sample paragraph with a visible marking. Check and reply.

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How to Processing XML data

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