| Daniel Veillard | c948420 | 2001-10-24 12:35:52 +0000 | [diff] [blame^] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> |
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| 12 | <title>XML</title> |
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| 17 | <a href="http://www.gnome.org/"><img src="smallfootonly.gif" alt="Gnome Logo"></a><a href="http://www.w3.org/Status"><img src="w3c.png" alt="W3C Logo"></a><a href="http://www.redhat.com/"><img src="redhat.gif" alt="Red Hat Logo"></a> |
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| 20 | <h1>The XML C library for Gnome</h1> |
| 21 | <h2>XML</h2> |
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| 26 | <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Main Menu</b></center></td></tr> |
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| 36 | <li><a href="XML.html">XML</a></li> |
| 37 | <li><a href="XSLT.html">XSLT</a></li> |
| 38 | <li><a href="architecture.html">An overview of libxml architecture</a></li> |
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| 40 | <li><a href="interface.html">The SAX interface</a></li> |
| 41 | <li><a href="library.html">The XML library interfaces</a></li> |
| 42 | <li><a href="entities.html">Entities or no entities</a></li> |
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| 44 | <li><a href="valid.html">Validation, or are you afraid of DTDs ?</a></li> |
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| 57 | <p> |
| 58 | <a href="http://www.w3.org/TR/REC-xml">XML is a standard</a> for |
| 59 | markup-based structured documents. Here is <a name="example">an example XML |
| 60 | document</a>:</p> |
| 61 | <pre><?xml version="1.0"?> |
| 62 | <EXAMPLE prop1="gnome is great" prop2="&amp; linux too"> |
| 63 | <head> |
| 64 | <title>Welcome to Gnome</title> |
| 65 | </head> |
| 66 | <chapter> |
| 67 | <title>The Linux adventure</title> |
| 68 | <p>bla bla bla ...</p> |
| 69 | <image href="linus.gif"/> |
| 70 | <p>...</p> |
| 71 | </chapter> |
| 72 | </EXAMPLE></pre> |
| 73 | <p>The first line specifies that it's an XML document and gives useful |
| 74 | information about its encoding. Then the document is a text format whose |
| 75 | structure is specified by tags between brackets. <strong>Each tag opened has |
| 76 | to be closed</strong>. XML is pedantic about this. However, if a tag is empty |
| 77 | (no content), a single tag can serve as both the opening and closing tag if |
| 78 | it ends with <code>/></code> rather than with <code>></code>. Note |
| 79 | that, for example, the image tag has no content (just an attribute) and is |
| 80 | closed by ending the tag with <code>/></code>.</p> |
| 81 | <p>XML can be applied sucessfully to a wide range of uses, from long term |
| 82 | structured document maintenance (where it follows the steps of SGML) to |
| 83 | simple data encoding mechanisms like configuration file formatting (glade), |
| 84 | spreadsheets (gnumeric), or even shorter lived documents such as WebDAV where |
| 85 | it is used to encode remote calls between a client and a server.</p> |
| 86 | <p><a href="mailto:daniel@veillard.com">Daniel Veillard</a></p> |
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