lyx_mirror/src/Author.cpp
2014-03-15 12:09:35 -04:00

160 lines
3.1 KiB
C++

/**
* \file Author.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Author.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include <algorithm>
#include <istream>
using namespace std;
using namespace lyx::support;
namespace lyx {
static int computeHash(docstring const & name,
docstring const & email)
{
string const full_author_string = to_utf8(name + email);
// Bernstein's hash function
unsigned int hash = 5381;
for (unsigned int i = 0; i < full_author_string.length(); ++i)
hash = ((hash << 5) + hash) + (unsigned int)(full_author_string[i]);
return int(hash);
}
Author::Author(docstring const & name, docstring const & email)
: name_(name), email_(email), used_(true)
{
buffer_id_ = computeHash(name_, email_);
}
bool operator==(Author const & l, Author const & r)
{
return l.name() == r.name() && l.email() == r.email();
}
ostream & operator<<(ostream & os, Author const & a)
{
// FIXME UNICODE
os << a.buffer_id_ << " \"" << to_utf8(a.name_)
<< "\" " << to_utf8(a.email_);
return os;
}
istream & operator>>(istream & is, Author & a)
{
string s;
is >> a.buffer_id_;
getline(is, s);
// FIXME UNICODE
a.name_ = from_utf8(trim(token(s, '\"', 1)));
a.email_ = from_utf8(trim(token(s, '\"', 2)));
return is;
}
bool author_smaller(Author const & lhs, Author const & rhs)
{
return lhs.bufferId() < rhs.bufferId();
}
AuthorList::AuthorList()
: last_id_(0)
{}
int AuthorList::record(Author const & a)
{
// If we record an author which equals the current
// author, we copy the buffer_id, so that it will
// keep the same id in the file.
if (!authors_.empty() && a == authors_[0])
authors_[0].setBufferId(a.bufferId());
Authors::const_iterator it(authors_.begin());
Authors::const_iterator itend(authors_.end());
for (int i = 0; it != itend; ++it, ++i) {
if (*it == a)
return i;
}
authors_.push_back(a);
return last_id_++;
}
void AuthorList::record(int id, Author const & a)
{
LBUFERR(unsigned(id) < authors_.size());
authors_[id] = a;
}
void AuthorList::recordCurrentAuthor(Author const & a)
{
// current author has id 0
record(0, a);
}
Author const & AuthorList::get(int id) const
{
LASSERT(id < (int)authors_.size() , return authors_[0]);
return authors_[id];
}
AuthorList::Authors::const_iterator AuthorList::begin() const
{
return authors_.begin();
}
AuthorList::Authors::const_iterator AuthorList::end() const
{
return authors_.end();
}
void AuthorList::sort()
{
std::sort(authors_.begin(), authors_.end(), author_smaller);
}
ostream & operator<<(ostream & os, AuthorList const & a)
{
// Copy the authorlist, because we don't want to sort the original
AuthorList sorted = a;
sorted.sort();
AuthorList::Authors::const_iterator a_it = sorted.begin();
AuthorList::Authors::const_iterator a_end = sorted.end();
for (a_it = sorted.begin(); a_it != a_end; ++a_it) {
if (a_it->used())
os << "\\author " << *a_it << "\n";
}
return os;
}
} // namespace lyx