//---------------------------------------------------------------------------
/*
HtmlPage, HTML page class
Copyright (C) 2011-2015 Richel Bilderbeek
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, either version 3 of the License, or
(at your option) any later version.
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/>.
*/
//---------------------------------------------------------------------------
//From http://www.richelbilderbeek.nl/CppHtmlPage.htm
//---------------------------------------------------------------------------
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Weffc++"
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#include "htmlpage.h"
#include <fstream>
#include <iostream>
#include <boost/algorithm/string.hpp>
#include <boost/xpressive/xpressive.hpp>
#include <QDir>
#include <QFile>
#include "fileio.h"
#pragma GCC diagnostic pop
ribi::HtmlPage::HtmlPage(const std::string& filename)
: m_filename{filename},
m_title{FindTitle(filename)}
{
#ifndef NDEBUG
Test();
#endif
assert(ribi::fileio::FileIo().IsRegularFile(filename));
}
std::string ribi::HtmlPage::FindTitle(const std::string& filename) noexcept
{
const boost::xpressive::sregex title_regex
= boost::xpressive::sregex::compile("<title>.*</title>");
//Copy all filenames matching the regex in the resulting std::vector
const std::vector<std::string> v = ribi::fileio::FileIo().FileToVector(filename);
for (const std::string s: v)
{
if (boost::xpressive::regex_search(s,title_regex))
{
std::string t = s;
//Trim leading whitespace
while (!std::isgraph(t[0])) t = t.substr(1,t.size() - 1);
//Trim trailing whitespace
while (!std::isgraph(t[t.size()-1])) t.resize(t.size() - 1);
//Extract title
assert(t.substr(0,7)=="<title>");
assert(t.substr(t.size()-8,8)=="</title>");
const std::string title = t.substr(7,t.size()-8-7);
const std::string title_clean = ReplaceAll(title,"&","&");
return title_clean;
}
}
return {};
}
std::string ribi::HtmlPage::GetVersion() noexcept
{
return "1.2";
}
std::vector<std::string> ribi::HtmlPage::GetVersionHistory() noexcept
{
return {
"2011-xx-xx: version 1.0: initial version",
"2012-08-12: version 1.1: started versioning this class",
"2013-09-02: version 1.2: replaced Boost.Regex by Boost.Xpressive"
};
}
std::string ribi::HtmlPage::ReplaceAll(
std::string s,
const std::string& replaceWhat,
const std::string& replaceWithWhat) noexcept
{
while(1)
{
const int pos = s.find(replaceWhat);
if (pos==-1) break;
s.replace(pos,replaceWhat.size(),replaceWithWhat);
}
return s;
}
#ifndef NDEBUG
void ribi::HtmlPage::Test() noexcept
{
{
static bool is_tested{false};
if (is_tested) return;
is_tested = true;
}
//Test finding
{
const std::string filename { "tmp.txt" };
std::ofstream file(filename);
file << "Nothing";
file.close();
assert(FindTitle(filename)=="");
std::remove(filename.c_str());
}
{
const std::string filename { "tmp.txt" };
std::ofstream file(filename);
file << "Nothing\n";
file << "<title>Something</title>\n";
file << "Nothing\n";
file.close();
assert(FindTitle(filename)=="Something");
std::remove(filename.c_str());
}
}
#endif
bool ribi::operator<(const HtmlPage& lhs, const HtmlPage& rhs) noexcept
{
//Case insensitive compare
return boost::algorithm::to_lower_copy(lhs.GetTitle())
< boost::algorithm::to_lower_copy(rhs.GetTitle());
}
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