LeechCraft  0.6.70-10870-g558588d6ec
Modular cross-platform feature rich live environment.
domchildrenrange.h
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29 
30 #pragma once
31 
32 #include <boost/iterator.hpp>
33 #include <boost/iterator/function_input_iterator.hpp>
34 #include <boost/range.hpp>
35 #include <QDomElement>
36 #include <QString>
37 
38 namespace LeechCraft
39 {
40 namespace Util
41 {
42  namespace detail
43  {
44  class DomSiblingsIterator : public boost::iterator_facade<
45  DomSiblingsIterator,
46  QDomElement,
47  boost::single_pass_traversal_tag,
48  const QDomElement&
49  >
50  {
51  QDomElement Elem_;
52  const QString TagName_;
53  public:
54  DomSiblingsIterator () = default;
55 
56  DomSiblingsIterator (const QDomElement& firstChild, const QString& tagName)
57  : Elem_ { firstChild }
58  , TagName_ { tagName }
59  {
60  }
61 
62  void increment ()
63  {
64  Elem_ = Elem_.nextSiblingElement (TagName_);
65  }
66 
67  const QDomElement& dereference () const
68  {
69  return Elem_;
70  }
71 
72  bool equal (const DomSiblingsIterator& other) const
73  {
74  return Elem_ == other.Elem_;
75  }
76  };
77  }
78 
105  inline auto DomChildren (const QDomElement& parent, const QString& tag)
106  {
107  auto child = parent.firstChildElement (tag);
108  return boost::make_iterator_range<detail::DomSiblingsIterator> ({ child, tag }, {});
109  }
110 }
111 }
DomSiblingsIterator(const QDomElement &firstChild, const QString &tagName)
bool equal(const DomSiblingsIterator &other) const
auto DomChildren(const QDomElement &parent, const QString &tag)
Creates a range iterating over direct children named tag.