Package org.jaxen.function
Class NormalizeSpaceFunction
- java.lang.Object
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- org.jaxen.function.NormalizeSpaceFunction
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- All Implemented Interfaces:
Function
public class NormalizeSpaceFunction extends java.lang.Object implements Function
4.2
string normalize-space(string)
The normalize-space function returns the argument string with whitespace normalized by stripping leading and trailing whitespace and replacing sequences of whitespace characters by a single space. Whitespace characters are the same as those allowed by the S production in XML. If the argument is omitted, it defaults to the context node converted to a string, in other words the string-value of the context node.
- See Also:
- Section 4.2 of the XPath Specification
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Constructor Summary
Constructors Constructor Description NormalizeSpaceFunction()
Create a newNormalizeSpaceFunction
object.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
call(Context context, java.util.List args)
Returns the string-value of the first item inargs
after removing all leading and trailing white space, and replacing each other sequence of whitespace by a single space.static java.lang.String
evaluate(java.lang.Object strArg, Navigator nav)
Returns the string-value ofstrArg
after removing all leading and trailing white space, and replacing each other sequence of whitespace by a single space.private static boolean
isXMLSpace(char c)
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Method Detail
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call
public java.lang.Object call(Context context, java.util.List args) throws FunctionCallException
Returns the string-value of the first item inargs
after removing all leading and trailing white space, and replacing each other sequence of whitespace by a single space. Whitespace consists of the characters space (0x32), carriage return (0x0D), linefeed (0x0A), and tab (0x09).- Specified by:
call
in interfaceFunction
- Parameters:
context
- the context at the point in the expression when the function is calledargs
- a list that contains exactly one item- Returns:
- a normalized
String
- Throws:
FunctionCallException
- ifargs
does not have length one
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evaluate
public static java.lang.String evaluate(java.lang.Object strArg, Navigator nav)
Returns the string-value ofstrArg
after removing all leading and trailing white space, and replacing each other sequence of whitespace by a single space. Whitespace consists of the characters space (0x32), carriage return (0x0D), linefeed (0x0A), and tab (0x09).- Parameters:
strArg
- the object whose string-value is normalizednav
- the context at the point in the expression when the function is called- Returns:
- the normalized string-value
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isXMLSpace
private static boolean isXMLSpace(char c)
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