2 #include "util/longest-common-suffix.h"
3 #include "xml/repr.h"
4 #include "xml/node-iterators.h"
6 static bool same_repr(Inkscape::XML::Node const &a, Inkscape::XML::Node const &b)
7 {
8 /* todo: I'm not certain that it's legal to take the address of a reference. Check the exact wording of the spec on this matter. */
9 return &a == &b;
10 }
12 Inkscape::XML::Node const *LCA(Inkscape::XML::Node const *a, Inkscape::XML::Node const *b)
13 {
14 using Inkscape::Algorithms::longest_common_suffix;
15 Inkscape::XML::Node const *ancestor = longest_common_suffix<Inkscape::XML::NodeConstParentIterator>(
16 a, b, NULL, &same_repr
17 );
18 if ( ancestor && ancestor->type() != Inkscape::XML::DOCUMENT_NODE ) {
19 return ancestor;
20 } else {
21 return NULL;
22 }
23 }
25 Inkscape::XML::Node *LCA(Inkscape::XML::Node *a, Inkscape::XML::Node *b)
26 {
27 Inkscape::XML::Node const *tmp = LCA(const_cast<Inkscape::XML::Node const *>(a), const_cast<Inkscape::XML::Node const *>(b));
28 return const_cast<Inkscape::XML::Node *>(tmp);
29 }
31 Inkscape::XML::Node const *AncetreFils(Inkscape::XML::Node const *descendent, Inkscape::XML::Node const *ancestor)
32 {
33 Inkscape::XML::Node const *result = 0;
34 if ( descendent && ancestor ) {
35 if (descendent->parent() == ancestor) {
36 result = descendent;
37 } else {
38 result = AncetreFils(descendent->parent(), ancestor);
39 }
40 }
41 return result;
42 }
44 Inkscape::XML::Node *AncetreFils(Inkscape::XML::Node *descendent, Inkscape::XML::Node *ancestor)
45 {
46 Inkscape::XML::Node const * tmp = AncetreFils(const_cast<Inkscape::XML::Node const*>(descendent), const_cast<Inkscape::XML::Node const*>(ancestor));
47 return const_cast<Inkscape::XML::Node *>(tmp);
48 }
50 /*
51 Local Variables:
52 mode:c++
53 c-file-style:"stroustrup"
54 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
55 indent-tabs-mode:nil
56 fill-column:99
57 End:
58 */
59 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :