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194 lines
4.0 KiB
C++
194 lines
4.0 KiB
C++
/**
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* \file Author.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "Author.h"
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#include "support/convert.h"
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#include "support/gettext.h"
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#include "support/lassert.h"
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#include "support/lstrings.h"
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#include <algorithm>
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#include <istream>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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static int computeHash(docstring const & name,
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docstring const & email)
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{
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string const full_author_string = to_utf8(name + email);
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// Bernstein's hash function
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unsigned int hash = 5381;
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for (unsigned int i = 0; i < full_author_string.length(); ++i)
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hash = ((hash << 5) + hash) + (unsigned int)(full_author_string[i]);
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return int(hash);
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}
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Author::Author(docstring const & name, docstring const & email)
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: name_(name), email_(email), used_(true),
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buffer_id_(computeHash(name, email))
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{}
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Author::Author(int buffer_id)
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: name_(convert<docstring>(buffer_id)), email_(docstring()), used_(false),
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buffer_id_(buffer_id)
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{}
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docstring Author::nameAndEmail() const
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{
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if (email().empty())
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return name();
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else
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return bformat(_("%1$s[[name]] (%2$s[[email]])"), name(), email());
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}
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bool Author::valid() const
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{
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//this cannot be equal if the buffer_id was produced by the hash function.
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return name_ != convert<docstring>(buffer_id_);
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}
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bool operator==(Author const & l, Author const & r)
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{
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return l.name() == r.name() && l.email() == r.email();
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}
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ostream & operator<<(ostream & os, Author const & a)
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{
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// FIXME UNICODE
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os << a.buffer_id_ << " \"" << to_utf8(a.name_) << "\"";
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if (!a.email_.empty())
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os << " " << to_utf8(a.email_);
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return os;
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}
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istream & operator>>(istream & is, Author & a)
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{
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string s;
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is >> a.buffer_id_;
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getline(is, s);
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// FIXME UNICODE
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a.name_ = from_utf8(trim(token(s, '\"', 1)));
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a.email_ = from_utf8(trim(token(s, '\"', 2)));
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return is;
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}
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bool author_smaller(Author const & lhs, Author const & rhs)
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{
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return lhs.bufferId() < rhs.bufferId();
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}
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AuthorList::AuthorList()
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{}
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int AuthorList::record(Author const & a)
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{
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bool const valid = a.valid();
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// If we record an author which equals the current
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// author, we copy the buffer_id, so that it will
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// keep the same id in the file.
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if (valid && !authors_.empty() && a == authors_[0])
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authors_[0].setBufferId(a.bufferId());
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Authors::const_iterator it = authors_.begin();
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Authors::const_iterator const beg = it;
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Authors::const_iterator const end = authors_.end();
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for (; it != end; ++it) {
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if (valid && *it == a)
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return it - beg;
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if (it->bufferId() == a.bufferId()) {
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int id = it - beg;
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if (!it->valid())
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// we need to handle the case of a valid author being registred
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// after an invalid one. For instance, because "buffer-reload"
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// does not clear the buffer's author list.
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record(id, a);
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return id;
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}
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}
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authors_.push_back(a);
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return authors_.size() - 1;
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}
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void AuthorList::record(int id, Author const & a)
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{
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LBUFERR(unsigned(id) < authors_.size());
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authors_[id] = a;
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}
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void AuthorList::recordCurrentAuthor(Author const & a)
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{
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// current author has id 0
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record(0, a);
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}
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Author const & AuthorList::get(int id) const
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{
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LASSERT(id < (int)authors_.size() , return authors_[0]);
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return authors_[id];
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}
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AuthorList::Authors::const_iterator AuthorList::begin() const
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{
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return authors_.begin();
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}
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AuthorList::Authors::const_iterator AuthorList::end() const
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{
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return authors_.end();
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}
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void AuthorList::sort()
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{
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std::sort(authors_.begin(), authors_.end(), author_smaller);
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}
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ostream & operator<<(ostream & os, AuthorList const & a)
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{
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// Copy the authorlist, because we don't want to sort the original
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AuthorList sorted = a;
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sorted.sort();
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AuthorList::Authors::const_iterator a_it = sorted.begin();
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AuthorList::Authors::const_iterator const a_end = sorted.end();
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for (; a_it != a_end; ++a_it) {
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if (a_it->used() && a_it->valid())
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os << "\\author " << *a_it << "\n";
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}
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return os;
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}
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} // namespace lyx
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