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<h1>XSD String Data Types</h1>
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<hr />
<p class="intro">String data types are used for values that contains character
strings.</p>
<hr />
<h2>String Data Type</h2>
<p>The string data type can contain characters, line feeds, carriage returns,
and tab characters.</p>
<p>The following is an example of a string declaration in a schema:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><xs:element name="customer" type="xs:string"/></pre>
</td>
</tr>
</table>
<p>An element in your document might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer>John Smith</customer></pre>
</td>
</tr>
</table>
<p>Or it might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer> John Smith </customer></pre>
</td>
</tr>
</table>
<p><b>Note:</b> The XML processor will not modify the value if you use the
string data type.</p>
<hr />
<h2>NormalizedString Data Type</h2>
<p>The normalizedString data type is derived from the String data type.</p>
<p>The normalizedString data type also contains characters, but the XML
processor will remove line feeds, carriage returns, and tab characters.</p>
<p>The following is an example of a normalizedString declaration in a schema:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><xs:element name="customer" type="xs:normalizedString"/></pre>
</td>
</tr>
</table>
<p>An element in your document might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer>John Smith</customer></pre>
</td>
</tr>
</table>
<p>Or it might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer> John Smith </customer></pre>
</td>
</tr>
</table>
<p><b>Note:</b> In the example above the XML processor will replace the tabs
with spaces.</p>
<hr />
<h2>Token Data Type</h2>
<p>The token data type is also derived from the String data type.</p>
<p>The token data type also contains characters, but the XML processor will
remove line feeds, carriage returns, tabs, leading and trailing spaces, and
multiple spaces.</p>
<p>The following is an example of a token declaration in a schema:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><xs:element name="customer" type="xs:token"/></pre>
</td>
</tr>
</table>
<p>An element in your document might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer>John Smith</customer></pre>
</td>
</tr>
</table>
<p>Or it might look like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<td>
<pre><customer> John Smith </customer></pre>
</td>
</tr>
</table>
<p><b>Note:</b> In the example above the XML processor will remove the tabs.</p>
<hr />
<h2>String Data Types</h2>
<p>Note that all of the data types below derive from the String data type
(except for string itself)!</p>
<table width="100%" border="1" class="ex" cellspacing="0">
<tr>
<th width="23%" align="left" valign="top">Name</th>
<th width="77%" align="left" valign="top">Description</th>
</tr>
<tr>
<td valign="top">ENTITIES</td>
<td valign="top"> </td>
</tr>
<tr>
<td valign="top">ENTITY</td>
<td valign="top"> </td>
</tr>
<tr>
<td valign="top">ID</td>
<td valign="top">A string that represents the ID attribute in XML (only used
with schema attributes)</td>
</tr>
<tr>
<td valign="top">IDREF</td>
<td valign="top">A string that represents the IDREF attribute in XML (only
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