Symbol

Corresponding Entity

<

lt

>

gt

&

amp

'

apos

''

quot

Using the entity references, you can alternatively define a range element with the value ‘0 < counter

< 1000’:

<range>0 &lt; counter &lt; 100</range>

You can also represent characters in PCDATA with character references, which are nothing more than numeric character codes enclosed in &# and ; symbols, as in

<range>0 &#60; counter &#60; 100</range>

Character references are useful for representing characters that can’t be typed from the keyboard. Entity references are useful for escaping the occasional special character, but for large amounts of text containing arbitrary content, CDATA sections are far more convenient.