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966687d98b
This patch makes sure that there are minimal changes when loading and saving a file with change tracking. - the authors are assigned a buffer_id, such that when the file is saved, they get the same id, - the authorlist is sorted according to the buffer_id, - the buffer_id is written to the file in the author list (file format change) - the ids start with 1, because 0 is internally reserved for the current Author, - when writing the file, the current author is assigned an id if he didn't already have it. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@30756 a592a061-630c-0410-9148-cb99ea01b6c8
152 lines
2.9 KiB
C++
152 lines
2.9 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/lstrings.h"
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#include "support/lassert.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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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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<< "\" " << 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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return lhs.buffer_id() < rhs.buffer_id();
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}
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AuthorList::AuthorList()
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: last_id_(0)
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{
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}
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int AuthorList::record(Author const & a)
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{
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Authors::const_iterator it(authors_.begin());
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Authors::const_iterator itend(authors_.end());
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for (int i = 0; it != itend; ++it, ++i) {
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if (*it == a) {
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if (it->buffer_id() == 0)
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// The current author is internally represented as
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// author 0, but it appears he has already an id.
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it->setBufferId(a.buffer_id());
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return i;
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}
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}
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authors_.push_back(a);
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return last_id_++;
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}
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void AuthorList::record(int id, Author const & a)
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{
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LASSERT(unsigned(id) < authors_.size(), /**/);
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authors_[id] = 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() , /**/);
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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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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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// 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 a_end = sorted.end();
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// Find the buffer id for the current author (internal id 0),
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// if he doesn't have a buffer_id yet.
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if (sorted.get(0).buffer_id() == 0) {
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unsigned int cur_id = 1;
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for (; a_it != a_end; ++a_it) {
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if (a_it->buffer_id() == cur_id)
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++cur_id;
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else if (a_it->buffer_id() > cur_id) {
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break;
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}
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}
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// Set the id in both the original authorlist,
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// as in the copy.
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a.get(0).setBufferId(cur_id);
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sorted.get(0).setBufferId(cur_id);
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sorted.sort();
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}
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for (a_it = sorted.begin(); a_it != a_end; ++a_it) {
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if (a_it->used())
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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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