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Optimize DocRange::length(). Thanks Abdel.

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@32938 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Vincent van Ravesteijn 2010-01-10 13:55:42 +00:00
parent fd0dfe1b79
commit 715b1303da
1 changed files with 7 additions and 23 deletions
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30
src/Compare.cpp
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@ -84,30 +84,14 @@ public:
size_t DocRange::length() const
{
pit_type startpit = from.pit();
pit_type endpit = to.pit();
ParagraphList const & ps_ = from.text()->paragraphs();
ParagraphList pars(boost::next(ps_.begin(), startpit),
boost::next(ps_.begin(), endpit + 1));
// Remove the end of the last paragraph; afterwards, remove the
// beginning of the first paragraph.
Paragraph & back = pars.back();
back.eraseChars(to.pos(), back.size(), false);
Paragraph & front = pars.front();
front.eraseChars(0, from.pos(), false);
ParagraphList::const_iterator pit = pars.begin();
ParagraphList::const_iterator end_it = pars.end();
ParagraphList const & ps = from.text()->paragraphs();
size_t length = 0;
for (; pit != end_it; ++pit)
length += pit->size() + 1;
// The last paragraph has no paragraph-end
--length;
return length;
pit_type pit = from.pit();
pit_type const endpit = to.pit();
for (; pit < endpit; ++pit)
length += ps[pit].size() + 1;
length += to.pos() - from.pos();
return length;
}