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Use the operator[] to get and set the values of the compl_vector.

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@32935 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Vincent van Ravesteijn 2010-01-10 13:17:10 +00:00
parent 43c8de8138
commit 93510f741c
1 changed files with 31 additions and 55 deletions
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86
src/Compare.cpp
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@ -206,36 +206,13 @@ public:
Vn_.clear(); Vn_.clear();
} }
T & operator[](int index) {
/// Gets the value at index. If it is not in the vector vector<T> & V = index >= 0 ? Vp_ : Vn_;
/// the default value is returned. if (index < 0)
T & get(int index) { index = -index-1;
if (-index <= int(Vn_.size()) && index < int(Vp_.size())) while (index >= V.size())
return index >= 0 ? Vp_[index] : Vn_[-index-1]; V.push_back(default_);
else return V[index];
return default_;
}
/// Sets the value at index if it already
/// is in the vector. Otherwise it will be added to the
/// end padded with the default value.
void set(int index, T const & t) {
if (index >= -int(Vn_.size()) && index < int(Vp_.size())) {
if (index >= 0)
Vp_[index] = t;
else
Vn_[-index-1] = t;
} else {
while (index > int(Vp_.size()))
Vp_.push_back(default_);
while (index < -int(Vn_.size()) - 1)
Vn_.push_back(default_);
if (index >= 0)
Vp_.push_back(t);
else
Vn_.push_back(t);
}
} }
private: private:
@ -519,22 +496,21 @@ static bool traverse_snake(DocPair & p, DocRangePair const & range,
void Compare::Impl::furthest_Dpath_kdiagonal(int D, int k, void Compare::Impl::furthest_Dpath_kdiagonal(int D, int k,
DocRangePair const & rp, Direction direction) DocRangePair const & rp, Direction direction)
{ {
compl_vector<DocIterator> * op = direction == Forward ? &ofp : &orp; compl_vector<DocIterator> & op = direction == Forward ? ofp : orp;
compl_vector<DocIterator> * np = direction == Forward ? &nfp : &nrp; compl_vector<DocIterator> & np = direction == Forward ? nfp : nrp;
compl_vector<DocIterator> * os = direction == Forward ? &ofs : &ors; compl_vector<DocIterator> & os = direction == Forward ? ofs : ors;
compl_vector<DocIterator> * ns = direction == Forward ? &nfs : &nrs; compl_vector<DocIterator> & ns = direction == Forward ? nfs : nrs;
// A vertical step means stepping one character in the new document. // A vertical step means stepping one character in the new document.
bool vertical_step = k == -D; bool vertical_step = k == -D;
if (!vertical_step && k != D) { if (!vertical_step && k != D) {
vertical_step = direction == Forward vertical_step = direction == Forward
? op->get(k - 1) < op->get(k + 1) ? op[k - 1] < op[k + 1] : op[k - 1] > op[k + 1];
: op->get(k - 1) > op->get(k + 1);
} }
// Where do we take the step from ? // Where do we take the step from ?
int const kk = vertical_step ? k + 1 : k - 1; int const kk = vertical_step ? k + 1 : k - 1;
DocPair p(op->get(kk), np->get(kk)); DocPair p(op[kk], np[kk]);
// If D==0 we simulate a vertical step from (0,-1) by doing nothing. // If D==0 we simulate a vertical step from (0,-1) by doing nothing.
if (D != 0) { if (D != 0) {
@ -552,17 +528,17 @@ void Compare::Impl::furthest_Dpath_kdiagonal(int D, int k,
// Traverse snake // Traverse snake
if (traverse_snake(p, rp, direction)) { if (traverse_snake(p, rp, direction)) {
// Record last snake // Record last snake
os->set(k, p.o); os[k] = p.o;
ns->set(k, p.n); ns[k] = p.n;
} else { } else {
// Copy last snake from the previous step // Copy last snake from the previous step
os->set(k, os->get(kk)); os[k] = os[kk];
ns->set(k, ns->get(kk)); ns[k] = ns[kk];
} }
//Record new position //Record new position
op->set(k, p.o); op[k] = p.o;
np->set(k, p.n); np[k] = p.n;
} }
@ -575,9 +551,9 @@ bool Compare::Impl::overlap(int k, int D)
if (kk <= D && kk >= -D) { if (kk <= D && kk >= -D) {
// Do we have overlap ? // Do we have overlap ?
if (odd_offset_) if (odd_offset_)
return ofp.get(k) >= orp.get(kk) && nfp.get(k) >= nrp.get(kk); return ofp[k] >= orp[kk] && nfp[k] >= nrp[kk];
else else
return ofp.get(kk) >= orp.get(k) && nfp.get(kk) >= nrp.get(k); return ofp[kk] >= orp[k] && nfp[kk] >= nrp[k];
} }
return false; return false;
} }
@ -586,32 +562,32 @@ bool Compare::Impl::overlap(int k, int D)
Compare::Impl::SnakeResult Compare::Impl::retrieve_middle_snake( Compare::Impl::SnakeResult Compare::Impl::retrieve_middle_snake(
int k, int D, Direction direction, DocPair & middle_snake) int k, int D, Direction direction, DocPair & middle_snake)
{ {
compl_vector<DocIterator> * os = direction == Forward ? &ofs : &ors; compl_vector<DocIterator> & os = direction == Forward ? ofs : ors;
compl_vector<DocIterator> * ns = direction == Forward ? &nfs : &nrs; compl_vector<DocIterator> & ns = direction == Forward ? nfs : nrs;
compl_vector<DocIterator> * os_r = direction == Forward ? &ors : &ofs; compl_vector<DocIterator> & os_r = direction == Forward ? ors : ofs;
compl_vector<DocIterator> * ns_r = direction == Forward ? &nrs : &nfs; compl_vector<DocIterator> & ns_r = direction == Forward ? nrs : nfs;
// The diagonal while doing the backward search // The diagonal while doing the backward search
int kk = -k + offset_reverse_diagonal_; int kk = -k + offset_reverse_diagonal_;
// Did we find a snake ? // Did we find a snake ?
if (os->get(k).empty() && os_r->get(kk).empty()) { if (os[k].empty() && os_r[kk].empty()) {
// No, there is no snake at all, in which case // No, there is no snake at all, in which case
// the length of the shortest edit script is M+N. // the length of the shortest edit script is M+N.
LASSERT(2 * D - odd_offset_ == M_ + N_, /**/); LASSERT(2 * D - odd_offset_ == M_ + N_, /**/);
return NoSnake; return NoSnake;
} }
if (os->get(k).empty()) { if (os[k].empty()) {
// Yes, but there is only 1 snake and we found it in the // Yes, but there is only 1 snake and we found it in the
// reverse path. // reverse path.
middle_snake.o = os_r->get(kk); middle_snake.o = os_r[kk];
middle_snake.n = ns_r->get(kk); middle_snake.n = ns_r[kk];
return SingleSnake; return SingleSnake;
} }
middle_snake.o = os->get(k); middle_snake.o = os[k];
middle_snake.n = ns->get(k); middle_snake.n = ns[k];
return NormalSnake; return NormalSnake;
} }