15.2.19. XSD string data type

发布时间 ： 2025-10-25 13:35:23 UTC      

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

String data type (String Data Type)

String data types can contain characters, line feeds, carriage returns, and tabs.

Here is an example of a string declaration in a scheme:

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

The elements in the document should look like this:

<customer>John Smithcustomer>
   
 Or something like this: 
 
 
 
<customer>       John Smith     customer>
   
  注意：  If you use a string data type, the XML processor does not change the value in it. 
  
 
 Normalize string data types (NormalizedString Data Type)  
 
 Normalized string data types are derived from string data types. 
 
 Normalized string data types can also contain characters, but the XML processor removes line breaks, carriage returns, and tabs. 
 
 Here is an example of normalizing string data types in a schema: 
 
 
 
<xs:element name="customer" type="xs:normalizedString"/>

 
 
 
 The elements in the document should look like this: 
 
 
 
<customer>John Smithcustomer>
   
 Or something like this: 
 
 
 
<customer>     John Smith     customer>
   
  注意：  In the above example, the XML processor replaces all tabs with spaces. 
  
 
 Token data type (Token Data Type)  
 
 The Token data type is also derived from the string data type. 
 
 The Token data type can also contain characters, but the XML processor removes newline characters, carriage returns, tabs, beginning and ending spaces, and (consecutive) spaces. 
 
 Here is an example of an token declaration in schema: 
 
 
 
<xs:element name="customer" type="xs:token"/>

 
 
 
 The elements in the document should look like this: 
 
 
 
<customer>John Smithcustomer>
   
 Or something like this: 
 
 
 
<customer>     John Smith     customer>
   
  注意：  In the above example, the XML parser removes tabs. 
  
 
 String data type  
 
 Note that all of the following data types are derived from the string data type (except the string data type itself)! 
 
      
  
 Name 
 		  
 Description 
 		 
   
  
 ENTITIES 
 		   
 
  
 ENTITY 
 		   
 
  
 ID 
 		  
 Submit a string for the ID attribute in XML (used only with the schema attribute) 
 		 
 
  
 IDREF 
 		  
 Submit a string for the IDREF attribute in XML (used only with the schema attribute) 
 		 
 
  
 IDREFS language 
 		  
 A string containing the legal language id 
 		 
 
  
 Name 
 		  
 A string containing a legal XML name 
 		 
 
  
 NCName 
 		   
 
  
 NMTOKEN 
 		  
 Submit a string for the NMTOKEN attribute in XML (used only with the schema attribute) 
 		 
 
  
 NMTOKENS 
 		   
 
  
 NormalizedString 
 		  
 A string that does not contain newline characters, carriage returns, or tabs 
 		 
 
  
 QName 
 		   
 
  
 String 
 		  
 String 
 		 
 
  
 Token 
 		  
 A string that does not contain newline characters, carriage returns or tabs, beginning or ending spaces, or multiple consecutive spaces 
 		 
  
 
 
 
 Qualification of string data types (Restriction)  
 
 Restrictions that can be used with string data types: 
 
     
  •  
     Enumeration 
     
    •  
  •  
     Length 
     
    •  
  •  
     MaxLength 
     
    •  
  •  
     MinLength 
     
    •  
  •  
     Pattern (this constraint cannot be used by NMTOKENS, IDREFS, and ENTITIES) 
     
    •  
  •  
     WhiteSpace 
     
    •  
 
  
                    
                
                

                    

                        

                            
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                            15.2.19. XSD string data type 
                        

                    

                

            
        
        

            

    
        

            

                

                    
                        
                        
                            
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