mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-07 12:32:26 +00:00
3efb1572a2
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@32581 a592a061-630c-0410-9148-cb99ea01b6c8
119 lines
2.3 KiB
C++
119 lines
2.3 KiB
C++
/**
|
|
* \file WordList.cpp
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Stefan Schimanski
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "WordList.h"
|
|
|
|
#include "Language.h"
|
|
|
|
#include "support/convert.h"
|
|
#include "support/debug.h"
|
|
#include "support/docstring.h"
|
|
#include "support/weighted_btree.h"
|
|
|
|
#include "support/lassert.h"
|
|
|
|
#include <map>
|
|
|
|
using namespace std;
|
|
|
|
namespace lyx {
|
|
|
|
///
|
|
map<Language, WordList *> theGlobalWordList;
|
|
|
|
WordList * theWordList(Language const & lang)
|
|
{
|
|
map<Language, WordList *>::iterator it = theGlobalWordList.find(lang);
|
|
if (it != theGlobalWordList.end())
|
|
return it->second;
|
|
else
|
|
theGlobalWordList[lang] = new WordList();
|
|
return theGlobalWordList[lang];
|
|
}
|
|
|
|
///
|
|
struct WordList::Impl {
|
|
///
|
|
size_t c_;
|
|
///
|
|
typedef stx::weighted_btree<docstring, size_t, int> Words;
|
|
///
|
|
Words words_;
|
|
};
|
|
|
|
|
|
WordList::WordList()
|
|
{
|
|
d = new Impl;
|
|
d->c_ = 0;
|
|
|
|
#if 0
|
|
for (size_t i = 1000000; i > 0; --i) {
|
|
d->words_.insert("a" + convert<docstring>(i), size_t(1), stx::Void());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
WordList::~WordList()
|
|
{
|
|
delete d;
|
|
}
|
|
|
|
|
|
docstring const & WordList::word(size_t idx) const
|
|
{
|
|
Impl::Words::const_iterator it = d->words_.find_summed_weight(idx);
|
|
LASSERT(it != d->words_.end(), /**/);
|
|
|
|
// We use the key() method here, and not something like it->first
|
|
// because the btree only returns (iterator-) temporary value pairs.
|
|
// If we returned the first component of those here, we get an
|
|
// invalid reference and therefore strange crashes.
|
|
return it.key();
|
|
}
|
|
|
|
|
|
size_t WordList::size() const
|
|
{
|
|
return d->words_.summed_weight();
|
|
}
|
|
|
|
|
|
void WordList::insert(docstring const & w)
|
|
{
|
|
Impl::Words::iterator it = d->words_.find(w);
|
|
if (it == d->words_.end())
|
|
d->words_.insert(w, size_t(1), 1);
|
|
else {
|
|
it.data()++;
|
|
d->words_.change_weight(it, 1);
|
|
}
|
|
}
|
|
|
|
|
|
void WordList::remove(docstring const & w)
|
|
{
|
|
Impl::Words::iterator it = d->words_.find(w);
|
|
if (it != d->words_.end()) {
|
|
it.data()--;
|
|
d->words_.change_weight(it, 0);
|
|
// We will not erase here, but instead we just leave it
|
|
// in the btree with weight 0. This avoid too much
|
|
// reorganisation of the tree all the time.
|
|
//if (it.data() == 0)
|
|
// d->words_.erase(w);
|
|
}
|
|
}
|
|
|
|
} // namespace lyx
|