August 2000
Beginner
456 pages
9h 24m
English
Content preview from Sams Teach Yourself XML in 24 Hours
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Predefined Entities
As is the case in HTML, there are some characters that have special interpretations in XML. For example, the greater-than (>) and less-than (<) characters are used to delimit tags and therefore cannot be placed inside a data string directly. To insert them into a string, you need to use a special sequence of characters, or an entity reference, that's reserved for that purpose. An entity is a sequence of characters used to represent another sequence of characters, and those that the system provides are known as predefined entities. The notation of an entity reference is identical to that used in HTML. Table 5.1 contains the characters with their corresponding entity references.
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