XSD String Data Type

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The String data type is used for values ​​that can contain strings.

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String Data Type

The string data type can contain characters, line feeds, carriage returns, and tab characters.

The following is an example of string declaration in a scheme:

The elements in the document should look something like this:

Or something like this:

Normalized String Data Type (NormalizedString Data Type) The normalized string data type is derived from the string data type.

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The normalized string data type can also contain characters, but the XML processor will remove line breaks, carriage returns, and tabs.

The following is an example of normalizing the string data type in a schema:

<xs:element name="customer" type="xs:normalizedString" />

The elements in the document should look something like this:

Or something like this:

Token data type (Token Data Type) The Token data type is also derived from the string data type.

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The Token data type can also contain characters, but the XML processor removes newlines, carriage returns, tabs, leading and trailing spaces, and (consecutive) spaces.

The following is an example of token declaration in schema:

<xs:element name="customer" type="xs:token"/>

The elements in the document should look something like this:

Or something like this:

Note:>In the above example, the XML parser will remove tab characters.

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String data type

Please note that all the following data types are derived from the string data type (except the string data type itself)!

Name	Description
ENTITIES
ENTITY
ID	Submit the string of the ID attribute in XML (only used with the schema attribute)
IDREF	Submit the string of the IDREF attribute in XML (only used with the schema attribute)
IDREFS language	String containing the legal language id
Name	String containing the legal XML name
NCName
NMTOKEN	Submit the string of the NMTOKEN attribute in XML (only used with the schema attribute)
NMTOKENS
normalizedString	A string that does not contain newlines, carriage returns, or tabs
QName
string	String
token	A string that does not contain a newline character, a carriage return or a tab character, a leading or trailing space, or multiple consecutive spaces

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pair of characters Restriction of the string data type (Restriction)

Restrictions that can be used with the string data type:

• enumeration

• length

• maxLength

• minLength

• pattern (NMTOKENS, IDREFS, and ENTITIES cannot use this constraint )

• whiteSpace