* do not lookup the same macro all the time

[lyx.git] / src / DocIterator.cpp

diff --git a/src/DocIterator.cpp b/src/DocIterator.cpp
index cf84b1b1c7cff0657ec2da7ac22322748e3d347a..3ef66b46c705307d2ea416bf93df8d05d5d4df56 100644 (file)
--- a/src/DocIterator.cpp
+++ b/src/DocIterator.cpp
@@ -432,6 +432,19 @@ void DocIterator::forwardPar()
 }
 
 
+void DocIterator::forwardIdx()
+{
+       CursorSlice & tip = top();
+
+       //prevent endless loops
+       BOOST_ASSERT(tip.idx() < lastidx());
+
+       ++tip.idx();
+       tip.pit() = 0;
+       tip.pos() = 0;
+}
+
+
 void DocIterator::forwardChar()
 {
        forwardPos();
@@ -553,6 +566,28 @@ std::ostream & operator<<(std::ostream & os, DocIterator const & dit)
 }
 
 
+bool operator<(DocIterator const & p, DocIterator const & q)
+{
+       size_t depth = std::min(p.depth(), q.depth());
+       for (size_t i = 0 ; i < depth ; ++i) {
+               if (p[i] != q[i])
+                       return p[i] < q[i];
+       }
+       return p.depth() < q.depth();
+}
+
+
+bool operator>(DocIterator const & p, DocIterator const & q)
+{
+       return q < p;
+}
+
+
+bool operator<=(DocIterator const & p, DocIterator const & q)
+{
+       return !(q < p);
+}
+
 
 ///////////////////////////////////////////////////////