QXmlDeclHandler ¶

详细描述 ¶

You can set the declaration handler with setDeclHandler() .

This interface is based on the SAX2 extension DeclHandler.

The interface provides attributeDecl() , internalEntityDecl() and externalEntityDecl() 函数。

另请参阅

QXmlDTDHandler QXmlContentHandler QXmlEntityResolver QXmlErrorHandler QXmlLexicalHandler Introduction to SAX2

class QXmlDeclHandler ¶

PySide2.QtXml.QXmlDeclHandler. attributeDecl ( eName , aName , type , valueDefault , value ) ¶

参数

• eName – unicode

• aName – unicode

• type – unicode

• valueDefault – unicode

• value – unicode

返回类型

bool

The reader calls this function to report an attribute type declaration. Only the effective (first) declaration for an attribute is reported.

The reader passes the name of the associated element in eName and the name of the attribute in aName . It passes a string that represents the attribute type in type and a string that represents the attribute default in valueDefault . This string is one of “#IMPLIED”, “#REQUIRED”, “#FIXED” or an empty string (if none of the others applies). The reader passes the attribute’s default value in value . If no default value is specified in the XML file, value is an empty string.

若此函数返回 false the reader stops parsing and reports an error. The reader uses the function errorString() to get the error message.

PySide2.QtXml.QXmlDeclHandler. errorString ( ) ¶

返回类型

unicode

The reader calls this function to get an error string if any of the handler functions returns false .

PySide2.QtXml.QXmlDeclHandler. externalEntityDecl ( name , publicId , systemId ) ¶

参数

• name – unicode

• publicId – unicode

• systemId – unicode

返回类型

bool

The reader calls this function to report a parsed external entity declaration. Only the effective (first) declaration for each entity is reported.

The reader passes the name of the entity in name , the public identifier in publicId and the system identifier in systemId . If there is no public identifier specified, it passes an empty string in publicId .

若此函数返回 false the reader stops parsing and reports an error. The reader uses the function errorString() to get the error message.

PySide2.QtXml.QXmlDeclHandler. internalEntityDecl ( name , value ) ¶

参数

• name – unicode

• value – unicode

返回类型

bool

The reader calls this function to report an internal entity declaration. Only the effective (first) declaration is reported.

The reader passes the name of the entity in name and the value of the entity in value .

若此函数返回 false the reader stops parsing and reports an error. The reader uses the function errorString() to get the error message.