+void Buffer::Impl::updateStatistics(DocIterator & from, DocIterator & to, bool skipNoOutput)
+{
+ bool inword = false;
+ word_count_ = 0;
+ char_count_ = 0;
+ blank_count_ = 0;
+
+ for (DocIterator dit = from ; dit != to && !dit.atEnd(); ) {
+ if (!dit.inTexted()) {
+ dit.forwardPos();
+ continue;
+ }
+
+ Paragraph const & par = dit.paragraph();
+ pos_type const pos = dit.pos();
+
+ // Copied and adapted from isWordSeparator() in Paragraph
+ if (pos == dit.lastpos()) {
+ inword = false;
+ } else {
+ Inset const * ins = par.getInset(pos);
+ if (ins && skipNoOutput && !ins->producesOutput()) {
+ // skip this inset
+ ++dit.top().pos();
+ // stop if end of range was skipped
+ if (!to.atEnd() && dit >= to)
+ break;
+ continue;
+ } else if (!par.isDeleted(pos)) {
+ if (par.isWordSeparator(pos))
+ inword = false;
+ else if (!inword) {
+ ++word_count_;
+ inword = true;
+ }
+ if (ins && ins->isLetter())
+ ++char_count_;
+ else if (ins && ins->isSpace())
+ ++blank_count_;
+ else {
+ char_type const c = par.getChar(pos);
+ if (isPrintableNonspace(c))
+ ++char_count_;
+ else if (isSpace(c))
+ ++blank_count_;
+ }
+ }
+ }
+ dit.forwardPos();
+ }
+}
+
+
+void Buffer::updateStatistics(DocIterator & from, DocIterator & to, bool skipNoOutput) const
+{
+ d->updateStatistics(from, to, skipNoOutput);
+}
+
+
+int Buffer::wordCount() const
+{
+ return d->wordCount();
+}
+
+
+int Buffer::charCount(bool with_blanks) const
+{
+ return d->charCount(with_blanks);
+}
+
+