xmlrpc-c/dfs.cc

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/* --*- c++ -*--
* Copyright (C) 2010 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string>
#include <list>
#include <map>
#include <iostream>
class node {
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public:
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node(std::string const &name) : name_(name) {}
void add_child(class node *n)
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{
children_.push_back(n);
}
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void dfs(std::list<std::string> &res);
bool visited;
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private:
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std::string const name_;
std::list<class node *> children_;
};
void node::dfs(std::list<std::string> &res)
{
std::list<class node *>::iterator i;
visited = true;
for (i = children_.begin(); i != children_.end(); ++i) {
if ((*i)->visited)
continue;
(*i)->dfs(res);
}
res.push_front(name_);
}
int main(void)
{
std::map<std::string, class node *> nodes;
for (;;) {
std::string name;
class node *cur_node;
std::cin >> name;
if (!std::cin.good())
break;
if (nodes.find(name) == nodes.end())
nodes[name] = new node(name);
cur_node = nodes[name];
while (std::cin.good()) {
std::cin >> name;
if (name == "##")
break;
if (nodes.find(name) == nodes.end())
nodes[name] = new node(name);
cur_node->add_child(nodes[name]);
}
}
typedef std::map<std::string, class node *>::iterator node_iterator;
for (node_iterator n = nodes.begin(); n != nodes.end(); ++n) {
for (node_iterator m = nodes.begin();
m != nodes.end(); ++m)
m->second->visited = false;
std::list<std::string> res(nodes.size());
n->second->dfs(res);
for (std::list<std::string>::const_iterator i = res.begin();
i != res.end(); ++i)
std::cout << *i << " ";
std::cout << std::endl;
}
}