XMLUtils (XWiki Commons - XML 6.4.8 API)

java.lang.Object
- org.xwiki.xml.XMLUtils

```
public final class XMLUtils
extends Object
```
XML Utility methods.

Since:

1.6M1

Version:

$Id: a6f4b593cc643557032851f7d347612c9b0a9694 $

Method Summary

Methods
Modifier and Type	Method and Description
`static Document`	`createDOMDocument()` Construct a new (empty) DOM Document and return it.
`static String`	`escape(Object content)` Escapes all the XML special characters in a `String` using numerical XML entities.
`static String`	`escapeAttributeValue(Object content)` Escapes all the XML special characters and left curly bracket in a `String` using numerical XML entities, so that the resulting string can safely be used as an XML attribute value.
`static String`	`escapeElementContent(Object content)` Escapes the XML special characters in a `String` using numerical XML entities, so that the resulting string can safely be used as an XML text node.
`static String`	`escapeXMLComment(String content)` XML comment does not support some characters inside its content but there is no official escaping/unescaping for it so we made our own.
`static String`	`extractXML(Node node, int start, int length)` Extracts a well-formed XML fragment from the given DOM tree.
`static String`	`formatXMLContent(String content)` Parse and pretty print a XML content.
`static Document`	`parse(LSInput source)` Parse a DOM Document from a source.
`static String`	`serialize(Node node)` Serialize a DOM Node into a string, including the XML declaration at the start.
`static String`	`serialize(Node node, boolean withXmlDeclaration)` Serialize a DOM Node into a string, with an optional XML declaration at the start.
`static String`	`transform(Source xml, Source xslt)` Apply an XSLT transformation to a Document.
`static String`	`unescape(Object content)` Unescape encoded special XML characters.
`static String`	`unescapeXMLComment(String content)` XML comment does not support some characters inside its content but there is no official escaping/unescaping for it so we made our own.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - extractXML
```
public static String extractXML(Node node,
                int start,
                int length)
```
    Extracts a well-formed XML fragment from the given DOM tree.
    
    Parameters:
    node - the root of the DOM tree where the extraction takes place
    start - the index of the first character
    length - the maximum number of characters in text nodes to include in the returned fragment
    
    Returns:
    a well-formed XML fragment starting at the given character index and having up to the specified length, summing only the characters in text nodes
    Since:
    
    1.6M2
  - escapeXMLComment
```
public static String escapeXMLComment(String content)
```
    XML comment does not support some characters inside its content but there is no official escaping/unescaping for it so we made our own.
    - 1) Escape existing \
    - 2) Escape --
    - 3) Add "\" (unescaped as "") at the end if the last char is -
    Parameters:
    content - the XML comment content to escape
    
    Returns:
    the escaped content.
    Since:
    
    1.9M2
  - unescapeXMLComment
```
public static String unescapeXMLComment(String content)
```
    XML comment does not support some characters inside its content but there is no official escaping/unescaping for it so we made our own.
    
    Parameters:
    content - the XML comment content to unescape
    
    Returns:
    the unescaped content.
    Since:
    
    1.9M2
    
    See Also:
    escapeXMLComment(String)
  - escape
```
public static String escape(Object content)
```
    Escapes all the XML special characters in a String using numerical XML entities. Specifically, escapes <, >, ", ', & and {. Left curly bracket is included here to protect against {{/html}} in xwiki 2.x syntax.
    
    Parameters:
    content - the text to escape, may be null
    
    Returns:
    a new escaped String, null if null input
  - escapeAttributeValue
```
public static String escapeAttributeValue(Object content)
```
    Escapes all the XML special characters and left curly bracket in a String using numerical XML entities, so that the resulting string can safely be used as an XML attribute value. Specifically, escapes <, >, ", ', & and {. Left curly bracket is included here to protect against {{/html}} in xwiki 2.x syntax.
    
    Parameters:
    content - the text to escape, may be null
    
    Returns:
    a new escaped String, null if null input
  - escapeElementContent
```
public static String escapeElementContent(Object content)
```
    Escapes the XML special characters in a String using numerical XML entities, so that the resulting string can safely be used as an XML text node. Specifically, escapes <, >, and &.
    
    Parameters:
    content - the text to escape, may be null
    
    Returns:
    a new escaped String, null if null input
  - unescape
```
public static String unescape(Object content)
```
    Unescape encoded special XML characters. Only >, < &, ", ' and { are unescaped, since they are the only ones that affect the resulting markup.
    
    Parameters:
    content - the text to decode, may be null
    
    Returns:
    unescaped content, null if null input
  - createDOMDocument
```
public static Document createDOMDocument()
```
    Construct a new (empty) DOM Document and return it.
    
    Returns:
    an empty DOM Document
  - parse
```
public static Document parse(LSInput source)
```
    Parse a DOM Document from a source.
    
    Parameters:
    source - the source input to parse
    
    Returns:
    the equivalent DOM Document, or null if the parsing failed.
  - serialize
```
public static String serialize(Node node)
```
    Serialize a DOM Node into a string, including the XML declaration at the start.
    
    Parameters:
    node - the node to export
    
    Returns:
    the serialized node, or an empty string if the serialization fails
  - serialize
```
public static String serialize(Node node,
               boolean withXmlDeclaration)
```
    Serialize a DOM Node into a string, with an optional XML declaration at the start.
    
    Parameters:
    node - the node to export
    withXmlDeclaration - whether to output the XML declaration or not
    
    Returns:
    the serialized node, or an empty string if the serialization fails or the node is null
  - transform
```
public static String transform(Source xml,
               Source xslt)
```
    Apply an XSLT transformation to a Document.
    
    Parameters:
    xml - the document to transform
    xslt - the stylesheet to apply
    
    Returns:
    the transformation result, or null if an error occurs or null xml or xslt input
  - formatXMLContent
```
public static String formatXMLContent(String content)
                               throws TransformerFactoryConfigurationError,
                                      TransformerException
```
    Parse and pretty print a XML content.
    
    Parameters:
    content - the XML content to format
    
    Returns:
    the formated version of the passed XML content
    
    Throws:
    
    TransformerFactoryConfigurationError - when failing to create a TransformerFactoryConfigurationError
    
    TransformerException - when failing to transform the content
    Since:
    
    5.2M1

Class XMLUtils

Method Summary

Methods inherited from class java.lang.Object

Method Detail

extractXML

escapeXMLComment

unescapeXMLComment

escape

escapeAttributeValue

escapeElementContent

unescape

createDOMDocument

parse

serialize

serialize

transform

formatXMLContent