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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "util/longest-common-suffix.h"
#include "xml/repr.h"
#include "xml/node-iterators.h"
#include "repr-sorting.h"
static bool same_repr(Inkscape::XML::Node const &a, Inkscape::XML::Node const &b)
{
/* 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. */
return &a == &b;
}
Inkscape::XML::Node const *LCA(Inkscape::XML::Node const *a, Inkscape::XML::Node const *b)
{
using Inkscape::Algorithms::longest_common_suffix;
Inkscape::XML::Node const *ancestor = longest_common_suffix<Inkscape::XML::NodeConstParentIterator>(
a, b, nullptr, &same_repr);
bool OK = false;
if (ancestor) {
if (ancestor->type() != Inkscape::XML::DOCUMENT_NODE) {
OK = true;
}
}
if ( OK ) {
return ancestor;
} else {
return nullptr;
}
}
Inkscape::XML::Node *LCA(Inkscape::XML::Node *a, Inkscape::XML::Node *b)
{
Inkscape::XML::Node const *tmp = LCA(const_cast<Inkscape::XML::Node const *>(a), const_cast<Inkscape::XML::Node const *>(b));
return const_cast<Inkscape::XML::Node *>(tmp);
}
Inkscape::XML::Node const *AncetreFils(Inkscape::XML::Node const *descendent, Inkscape::XML::Node const *ancestor)
{
Inkscape::XML::Node const *result = nullptr;
if ( descendent && ancestor ) {
if (descendent->parent() == ancestor) {
result = descendent;
} else {
result = AncetreFils(descendent->parent(), ancestor);
}
}
return result;
}
Inkscape::XML::Node *AncetreFils(Inkscape::XML::Node *descendent, Inkscape::XML::Node *ancestor)
{
Inkscape::XML::Node const * tmp = AncetreFils(const_cast<Inkscape::XML::Node const*>(descendent), const_cast<Inkscape::XML::Node const*>(ancestor));
return const_cast<Inkscape::XML::Node *>(tmp);
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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