etree::XPath Class Reference

Manages a compiled XPath expression. More...

#include <element.hpp>

Public Member Functions
	XPath (const char *s)
	Compile an expression from a character array. More...
	XPath (const string &s)
	Compile an expression from a STL string. More...
	XPath (const string &s, const XPathContext &context)
	Compile an expression from a STL string. More...
	XPath (const XPath &other)
	Copy an expression. More...
	~XPath ()
	Destroy the compiled expression.
const string &	expr () const
	Return a string representation of the compiled expression.
Nullable< Element >	find (const Element &e) const
	Return the first matching Element, if any, matching the expression. More...
vector< Element >	findall (const Element &e) const
	Return all Elements matching the expression. More...
string	findtext (const Element &e, const string &default_="") const
	Return the text part of the first matching element. More...
XPath &	operator= (const XPath &other)
	Replace this expression with another. More...
vector< Element >	removeall (Element &expr) const
	Like XPath::findall, except remove each discovered element before returning it.

Detailed Description

Manages a compiled XPath expression.

Constructor & Destructor Documentation

etree::XPath::XPath

(

const char *

s

)

Compile an expression from a character array.

Parameters

s	XPath expression.

etree::XPath::XPath

(

const string &

s

)

Compile an expression from a STL string.

Parameters

s	XPath expression.

etree::XPath::XPath	(	const string &	s,
		const XPathContext &	context
	)

Compile an expression from a STL string.

Parameters

s	XPath expression.
context	XPathContext object.

etree::XPath::XPath

(

const XPath &

other

)

Copy an expression.

Parameters

other

XPath expression to copy.

Member Function Documentation

Nullable< Element > etree::XPath::find

(

const Element &

e

)

const

Return the first matching Element, if any, matching the expression.

Parameters

e	Root element to search from.

Returns

Matching Element, if any.

std::vector< Element > etree::XPath::findall

(

const Element &

e

)

const

Return all Elements matching the expression.

Parameters

e	Root element to search from.

Returns

Matching Elements.

std::string etree::XPath::findtext	(	const Element &	e,
		const string &	default_ = ""
	)		const

Return the text part of the first matching element.

Parameters

e	Root element to search from.
default_	String to return if text is not found.

Returns

Text part of the first matching element, or the empty string.

XPath & etree::XPath::operator=

(

const XPath &

other

)

Replace this expression with another.

Parameters

other

XPath expression to assign.

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The documentation for this class was generated from the following files:

• element.hpp
• element.cpp