]> git.lyx.org Git - lyx.git/blobdiff - src/CutAndPaste.cpp
Hack to display section symbol
[lyx.git] / src / CutAndPaste.cpp
index be3197cd8c9ceaeb7479f87dcc2876b94eb973da..b5147ae6e011334f661acdb618788594750a3a7a 100644 (file)
@@ -15,9 +15,9 @@
 
 #include "CutAndPaste.h"
 
+#include "Author.h"
 #include "BranchList.h"
 #include "Buffer.h"
-#include "buffer_funcs.h"
 #include "BufferList.h"
 #include "BufferParams.h"
 #include "BufferView.h"
@@ -28,7 +28,6 @@
 #include "FuncCode.h"
 #include "FuncRequest.h"
 #include "InsetIterator.h"
-#include "InsetList.h"
 #include "Language.h"
 #include "LyX.h"
 #include "LyXRC.h"
@@ -42,7 +41,6 @@
 #include "insets/InsetBranch.h"
 #include "insets/InsetCitation.h"
 #include "insets/InsetCommand.h"
-#include "insets/InsetFlex.h"
 #include "insets/InsetGraphics.h"
 #include "insets/InsetGraphicsParams.h"
 #include "insets/InsetInclude.h"
 #include "support/lassert.h"
 #include "support/limited_stack.h"
 #include "support/lstrings.h"
-#include "support/lyxalgo.h"
 #include "support/TempFile.h"
 #include "support/unique_ptr.h"
 
 #include "frontends/alert.h"
 #include "frontends/Clipboard.h"
-#include "frontends/Selection.h"
 
 #include <string>
 #include <tuple>
@@ -81,8 +77,9 @@ namespace lyx {
 namespace {
 
 typedef pair<pit_type, int> PitPosPair;
+typedef pair<DocumentClassConstPtr, AuthorList > DocInfoPair;
 
-typedef limited_stack<pair<ParagraphList, DocumentClassConstPtr> > CutStack;
+typedef limited_stack<pair<ParagraphList, DocInfoPair > > CutStack;
 
 CutStack theCuts(10);
 // persistent selection, cleared until the next selection
@@ -125,10 +122,23 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
        if (parlist.empty())
                return PasteReturnValue(pit, pos, need_update);
 
+       // Check whether we paste into an inset that does not
+       // produce output (needed for label duplicate check)
+       bool in_active_inset = cur.paragraph().inInset().producesOutput();
+       if (in_active_inset) {
+               for (size_type sl = 0 ; sl < cur.depth() ; ++sl) {
+                       Paragraph const & outer_par = cur[sl].paragraph();
+                       if (!outer_par.inInset().producesOutput()) {
+                               in_active_inset = false;
+                               break;
+                       }
+               }
+       }
+
        InsetText * target_inset = cur.inset().asInsetText();
        if (!target_inset) {
                InsetTabular * it = cur.inset().asInsetTabular();
-               target_inset = it ? it->cell(cur.idx())->asInsetText() : 0;
+               target_inset = it ? it->cell(cur.idx())->asInsetText() : nullptr;
        }
        LASSERT(target_inset, return PasteReturnValue(pit, pos, need_update));
 
@@ -142,6 +152,14 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
        // Now remove all out of the pars which is NOT allowed in the
        // new environment and set also another font if that is required.
 
+       // Merge paragraphs that are to be pasted into a text inset
+       // that does not allow multiple pars.
+       InsetText * inset_text = target_inset->asInsetText();
+       if (inset_text && !inset_text->allowMultiPar()) {
+               while (insertion.size() > 1)
+                       mergeParagraph(buffer.params(), insertion, 0);
+       }
+
        // Convert newline to paragraph break in ParbreakIsNewline
        if (target_inset->getLayout().parbreakIsNewline()
            || pars[pit].layout().parbreak_is_newline) {
@@ -169,6 +187,9 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
                for (size_t i = 0; i != insertion.size(); ++i) {
                        pos_type end = insertion[i].size();
                        for (pos_type j = 0; j != end; ++j) {
+                               // skip insets
+                               if (insertion[i].isInset(j))
+                                       continue;
                                char_type const c = insertion[i].getChar(j);
                                if (!e->encodable(c)) {
                                        // do not track deletion
@@ -194,27 +215,21 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
 
        // set the paragraphs to plain layout if necessary
        DocumentClassConstPtr newDocClass = buffer.params().documentClassPtr();
+       Layout const & plainLayout = newDocClass->plainLayout();
+       Layout const & defaultLayout = newDocClass->defaultLayout();
        if (cur.inset().usePlainLayout()) {
                bool forcePlainLayout = target_inset->forcePlainLayout();
-               Layout const & plainLayout = newDocClass->plainLayout();
-               Layout const & defaultLayout = newDocClass->defaultLayout();
-               ParagraphList::iterator const end = insertion.end();
-               ParagraphList::iterator par = insertion.begin();
-               for (; par != end; ++par) {
-                       Layout const & parLayout = par->layout();
+               for (auto & par : insertion) {
+                       Layout const & parLayout = par.layout();
                        if (forcePlainLayout || parLayout == defaultLayout)
-                               par->setLayout(plainLayout);
+                               par.setLayout(plainLayout);
                }
        } else {
                // check if we need to reset from plain layout
-               Layout const & defaultLayout = newDocClass->defaultLayout();
-               Layout const & plainLayout = newDocClass->plainLayout();
-               ParagraphList::iterator const end = insertion.end();
-               ParagraphList::iterator par = insertion.begin();
-               for (; par != end; ++par) {
-                       Layout const & parLayout = par->layout();
+               for (auto & par : insertion) {
+                       Layout const & parLayout = par.layout();
                        if (parLayout == plainLayout)
-                               par->setLayout(defaultLayout);
+                               par.setLayout(defaultLayout);
                }
        }
 
@@ -263,25 +278,44 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
                                        tmpbuf->eraseChar(i--, false);
                }
 
-               tmpbuf->setChange(Change(buffer.params().track_changes ?
-                                        Change::INSERTED : Change::UNCHANGED));
+               if (lyxrc.ct_markup_copied) {
+                       // Only change to inserted if ct is active,
+                       // otherwise leave markup as is
+                       if (buffer.params().track_changes)
+                               tmpbuf->setChange(Change(Change::INSERTED));
+               } else
+                       // Resolve all markup to inserted or unchanged
+                       tmpbuf->setChange(Change(buffer.params().track_changes ?
+                                                Change::INSERTED : Change::UNCHANGED));
        }
 
-       bool const empty = pars[pit].empty();
-       if (!empty) {
-               // Make the buf exactly the same layout as the cursor
-               // paragraph.
+       bool const target_empty = pars[pit].empty();
+       // Use the paste content's layout, if...
+       bool const paste_layout =
+               // if target paragraph is empty
+               (target_empty
+                // ... and its layout is default
+                && (pars[pit].layout() == defaultLayout
+                    // ... or plain
+                    || pars[pit].layout() == plainLayout
+                    // ... or the paste content spans several paragraphs
+                    || insertion.size() > 1))
+               // or if pasting is done at the beginning of paragraph
+                || (pos == 0
+                    // and the paste content spans several paragraphs
+                    && insertion.size() > 1);
+       if (!paste_layout)
+               // Give the first paragraph to insert the same layout as the
+               // target paragraph.
                insertion.begin()->makeSameLayout(pars[pit]);
-       }
 
        // Prepare the paragraphs and insets for insertion.
        insertion.swap(in.paragraphs());
 
-       InsetIterator const i_end = inset_iterator_end(in);
-       for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
+       InsetIterator const i_end = end(in);
+       for (InsetIterator it = begin(in); it != i_end; ++it) {
                // Even though this will also be done later, it has to be done here
-               // since some inset might going to try to access
-               // the buffer() member.
+               // since some inset might try to access the buffer() member.
                it->setBuffer(const_cast<Buffer &>(buffer));
                switch (it->lyxCode()) {
 
@@ -294,14 +328,14 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
                                        continue;
                                InsetLabel * lab = labels[i];
                                docstring const oldname = lab->getParam("name");
-                               lab->updateLabel(oldname);
+                               lab->updateLabel(oldname, in_active_inset);
                                // We need to update the buffer reference cache.
                                need_update = true;
                                docstring const newname = lab->getParam("name");
                                if (oldname == newname)
                                        continue;
                                // adapt the references
-                               for (InsetIterator itt = inset_iterator_begin(in);
+                               for (InsetIterator itt = begin(in);
                                      itt != i_end; ++itt) {
                                        if (itt->lyxCode() == REF_CODE) {
                                                InsetCommand * ref = itt->asInsetCommand();
@@ -325,14 +359,14 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
                        // check for duplicates
                        InsetLabel & lab = static_cast<InsetLabel &>(*it);
                        docstring const oldname = lab.getParam("name");
-                       lab.updateLabel(oldname);
+                       lab.updateLabel(oldname, in_active_inset);
                        // We need to update the buffer reference cache.
                        need_update = true;
                        docstring const newname = lab.getParam("name");
                        if (oldname == newname)
                                break;
                        // adapt the references
-                       for (InsetIterator itt = inset_iterator_begin(in); itt != i_end; ++itt) {
+                       for (InsetIterator itt = begin(in); itt != i_end; ++itt) {
                                if (itt->lyxCode() == REF_CODE) {
                                        InsetCommand & ref = static_cast<InsetCommand &>(*itt);
                                        if (ref.getParam("reference") == oldname)
@@ -379,7 +413,7 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
                        if (oldkey == newkey)
                                break;
                        // adapt the references
-                       for (InsetIterator itt = inset_iterator_begin(in);
+                       for (InsetIterator itt = begin(in);
                             itt != i_end; ++itt) {
                                if (itt->lyxCode() == CITE_CODE) {
                                        InsetCommand * ref = itt->asInsetCommand();
@@ -437,22 +471,26 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
        insertion.swap(in.paragraphs());
 
        // Split the paragraph for inserting the buf if necessary.
-       if (!empty)
+       if (!target_empty)
                breakParagraphConservative(buffer.params(), pars, pit, pos);
 
+       // If multiple paragraphs are inserted before the target paragraph,
+       // the cursor is now in a new paragraph before it,
+       // so use layout from paste content in that case.
+       if (pos == 0 && insertion.size() > 1)
+               pars[pit].makeSameLayout(* insertion.begin());
+
        // Paste it!
-       if (empty) {
-               pars.insert(lyx::next(pars.begin(), pit),
-                           insertion.begin(),
-                           insertion.end());
+       if (target_empty) {
+               pars.insert(pars.iterator_at(pit),
+                           insertion.begin(), insertion.end());
 
                // merge the empty par with the last par of the insertion
                mergeParagraph(buffer.params(), pars,
                               pit + insertion.size() - 1);
        } else {
-               pars.insert(lyx::next(pars.begin(), pit + 1),
-                           insertion.begin(),
-                           insertion.end());
+               pars.insert(pars.iterator_at(pit + 1),
+                           insertion.begin(), insertion.end());
 
                // merge the first par of the insertion with the current par
                mergeParagraph(buffer.params(), pars, pit);
@@ -472,7 +510,7 @@ pasteSelectionHelper(DocIterator const & cur, ParagraphList const & parlist,
 
        // Join (conditionally) last pasted paragraph with next one, i.e.,
        // the tail of the spliced document paragraph
-       if (!empty && last_paste + 1 != pit_type(pars.size())) {
+       if (!target_empty && last_paste + 1 != pit_type(pars.size())) {
                if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
                        mergeParagraph(buffer.params(), pars, last_paste);
                } else if (pars[last_paste + 1].empty()) {
@@ -516,10 +554,7 @@ PitPosPair eraseSelectionHelper(BufferParams const & params,
                pars[pit].eraseChars(left, right, params.track_changes);
 
                // Separate handling of paragraph break:
-               if (merge && pit != endpit &&
-                   (pit + 1 != endpit
-                    || pars[pit].hasSameLayout(pars[endpit])
-                    || pars[endpit].size() == endpos)) {
+        if (merge && pit != endpit) {
                        if (pit + 1 == endpit)
                                endpos += pars[pit].size();
                        mergeParagraph(params, pars, pit);
@@ -556,7 +591,7 @@ Buffer * copyToTempBuffer(ParagraphList const & paragraphs, DocumentClassConstPt
        // Use a clone for the complicated stuff so that we do not need to clean
        // up in order to avoid a crash.
        Buffer * buffer = staticbuffer->cloneBufferOnly();
-       LASSERT(buffer, return 0);
+       LASSERT(buffer, return nullptr);
 
        // This needs doing every time.
        // Since setDocumentClass() causes deletion of the old document class
@@ -583,9 +618,10 @@ Buffer * copyToTempBuffer(ParagraphList const & paragraphs, DocumentClassConstPt
 
 
 void putClipboard(ParagraphList const & paragraphs,
-       DocumentClassConstPtr docclass, docstring const & plaintext)
+                 DocInfoPair docinfo, docstring const & plaintext,
+                 BufferParams const & bp)
 {
-       Buffer * buffer = copyToTempBuffer(paragraphs, docclass);
+       Buffer * buffer = copyToTempBuffer(paragraphs, docinfo.first);
        if (!buffer) // already asserted in copyToTempBuffer()
                return;
 
@@ -594,6 +630,10 @@ void putClipboard(ParagraphList const & paragraphs,
        // applications, the number that can parse it should go up in the future.
        buffer->params().html_math_output = BufferParams::MathML;
 
+       // Copy authors to the params. We need those pointers.
+       for (Author const & a : bp.authors())
+               buffer->params().authors().record(a);
+
        // Make sure MarkAsExporting is deleted before buffer is
        {
                // The Buffer is being used to export. This is necessary so that the
@@ -656,8 +696,8 @@ void copySelectionHelper(Buffer const & buf, Text const & text,
        LASSERT(startpit != endpit || start <= end, return);
 
        // Clone the paragraphs within the selection.
-       ParagraphList copy_pars(lyx::next(pars.begin(), startpit),
-                               lyx::next(pars.begin(), endpit + 1));
+       ParagraphList copy_pars(pars.iterator_at(startpit),
+                               pars.iterator_at(endpit + 1));
 
        // Remove the end of the last paragraph; afterwards, remove the
        // beginning of the first paragraph. Keep this order - there may only
@@ -669,40 +709,38 @@ void copySelectionHelper(Buffer const & buf, Text const & text,
        Paragraph & front = copy_pars.front();
        front.eraseChars(0, start, false);
 
-       ParagraphList::iterator it = copy_pars.begin();
-       ParagraphList::iterator it_end = copy_pars.end();
-
-       for (; it != it_end; ++it) {
+       for (auto & par : copy_pars) {
                // Since we have a copy of the paragraphs, the insets
                // do not have a proper buffer reference. It makes
                // sense to add them temporarily, because the
                // operations below depend on that (acceptChanges included).
-               it->setInsetBuffers(const_cast<Buffer &>(buf));
+               par.setInsetBuffers(const_cast<Buffer &>(buf));
                // PassThru paragraphs have the Language
                // latex_language. This is invalid for others, so we
                // need to change it to the buffer language.
-               if (it->isPassThru())
-                       it->changeLanguage(buf.params(),
+               if (par.isPassThru())
+                       par.changeLanguage(buf.params(),
                                           latex_language, buf.language());
        }
 
        // do not copy text (also nested in insets) which is marked as
        // deleted, unless the whole selection was deleted
-       if (!isFullyDeleted(copy_pars))
-               acceptChanges(copy_pars, buf.params());
-       else
-               rejectChanges(copy_pars, buf.params());
+       if (!lyxrc.ct_markup_copied) {
+               if (!isFullyDeleted(copy_pars))
+                       acceptChanges(copy_pars, buf.params());
+               else
+                       rejectChanges(copy_pars, buf.params());
+       }
 
 
        // do some final cleanup now, to make sure that the paragraphs
        // are not linked to something else.
-       it = copy_pars.begin();
-       for (; it != it_end; ++it) {
-               it->resetBuffer();
-               it->setInsetOwner(0);
+       for (auto & par : copy_pars) {
+               par.resetBuffer();
+               par.setInsetOwner(nullptr);
        }
 
-       cutstack.push(make_pair(copy_pars, dc));
+       cutstack.push(make_pair(copy_pars, make_pair(dc, buf.params().authors())));
 }
 
 } // namespace
@@ -711,10 +749,10 @@ void copySelectionHelper(Buffer const & buf, Text const & text,
 namespace cap {
 
 void region(CursorSlice const & i1, CursorSlice const & i2,
-           Inset::row_type & r1, Inset::row_type & r2,
-           Inset::col_type & c1, Inset::col_type & c2)
+                       row_type & r1, row_type & r2,
+                       col_type & c1, col_type & c2)
 {
-       Inset & p = i1.inset();
+       Inset const & p = i1.inset();
        c1 = p.col(i1.idx());
        c2 = p.col(i2.idx());
        if (c1 > c2)
@@ -775,6 +813,13 @@ bool multipleCellsSelected(CursorData const & cur)
 }
 
 
+void switchBetweenClasses(DocumentClassConstPtr oldone,
+               DocumentClassConstPtr newone, InsetText & in) {
+       ErrorList el = {};
+       switchBetweenClasses(oldone, newone, in, el);
+}
+
+
 void switchBetweenClasses(DocumentClassConstPtr oldone,
                DocumentClassConstPtr newone, InsetText & in, ErrorList & errorlist)
 {
@@ -789,10 +834,10 @@ void switchBetweenClasses(DocumentClassConstPtr oldone,
 
        // layouts
        ParIterator it = par_iterator_begin(in);
-       ParIterator end = par_iterator_end(in);
+       ParIterator pend = par_iterator_end(in);
        // for remembering which layouts we've had to add
        set<docstring> newlayouts;
-       for (; it != end; ++it) {
+       for (; it != pend; ++it) {
                docstring const name = it->layout().name();
 
                // the pasted text will keep their own layout name. If this layout does
@@ -815,16 +860,19 @@ void switchBetweenClasses(DocumentClassConstPtr oldone,
        }
 
        // character styles and hidden table cells
-       InsetIterator const i_end = inset_iterator_end(in);
-       for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
-               InsetCode const code = it->lyxCode();
+       InsetIterator const i_end = end(in);
+       for (InsetIterator iit = begin(in); iit != i_end; ++iit) {
+               InsetCode const code = iit->lyxCode();
                if (code == FLEX_CODE) {
                        // FIXME: Should we verify all InsetCollapsible?
-                       docstring const layoutName = it->layoutName();
+                       docstring const layoutName = iit->layoutName();
                        docstring const & n = newone->insetLayout(layoutName).name();
                        bool const is_undefined = n.empty() ||
                                n == DocumentClass::plainInsetLayout().name();
-                       if (!is_undefined)
+                       docstring const & oldn = oldone->insetLayout(layoutName).name();
+                       bool const was_undefined = oldn.empty() ||
+                               oldn == DocumentClass::plainInsetLayout().name();
+                       if (!is_undefined || was_undefined)
                                continue;
 
                        // The flex inset is undefined in newtc
@@ -841,14 +889,14 @@ void switchBetweenClasses(DocumentClassConstPtr oldone,
                        // To warn the user that something had to be done.
                        errorlist.push_back(ErrorItem(
                                                      _("Undefined flex inset"), s,
-                                                     {it.paragraph().id(), it.pos()},
-                                                     {it.paragraph().id(), it.pos()+1}));
+                                                     {iit.paragraph().id(), iit.pos()},
+                                                     {iit.paragraph().id(), iit.pos() + 1}));
                } else if (code == TABULAR_CODE) {
                        // The recursion above does not catch paragraphs in "hidden" cells,
                        // i.e., ones that are part of a multirow or multicolum. So we need
                        // to handle those separately.
                        // This is the cause of bug #9049.
-                       InsetTabular * table = it->asInsetTabular();
+                       InsetTabular * table = iit->asInsetTabular();
                        table->setLayoutForHiddenCells(newtc);
                }
        }
@@ -861,17 +909,11 @@ vector<docstring> availableSelections(Buffer const * buf)
        if (!buf)
                return selList;
 
-       CutStack::const_iterator cit = theCuts.begin();
-       CutStack::const_iterator end = theCuts.end();
-       for (; cit != end; ++cit) {
-               // we do not use cit-> here because gcc 2.9x does not
-               // like it (JMarc)
-               ParagraphList const & pars = (*cit).first;
+       for (auto const & cut : theCuts) {
+               ParagraphList const & pars = cut.first;
                docstring textSel;
-               ParagraphList::const_iterator pit = pars.begin();
-               ParagraphList::const_iterator pend = pars.end();
-               for (; pit != pend; ++pit) {
-                       Paragraph par(*pit, 0, 46);
+               for (auto const & para : pars) {
+                       Paragraph par(para, 0, 46);
                        // adapt paragraph to current buffer.
                        par.setInsetBuffers(const_cast<Buffer &>(*buf));
                        textSel += par.asString(AS_STR_INSETS);
@@ -894,7 +936,7 @@ size_type numberOfSelections()
 
 namespace {
 
-void cutSelectionHelper(Cursor & cur, CutStack & cuts, bool doclear, bool realcut, bool putclip)
+void cutSelectionHelper(Cursor & cur, CutStack & cuts, bool realcut, bool putclip)
 {
        // This doesn't make sense, if there is no selection
        if (!cur.selection())
@@ -927,7 +969,7 @@ void cutSelectionHelper(Cursor & cur, CutStack & cuts, bool doclear, bool realcu
                        // Even if there is no selection.
                        if (putclip)
                                putClipboard(cuts[0].first, cuts[0].second,
-                                            cur.selectionAsString(true));
+                                            cur.selectionAsString(true, true), bp);
                }
 
                if (begpit != endpit)
@@ -943,11 +985,6 @@ void cutSelectionHelper(Cursor & cur, CutStack & cuts, bool doclear, bool realcu
                cur.pos() = endpos;
                cur.pit() = endpit;
 
-               // sometimes necessary
-               if (doclear
-                       && text->paragraphs()[begpit].stripLeadingSpaces(bp.track_changes))
-                       cur.fixIfBroken();
-
                // need a valid cursor. (Lgb)
                cur.clearSelection();
 
@@ -979,25 +1016,27 @@ void cutSelectionHelper(Cursor & cur, CutStack & cuts, bool doclear, bool realcu
 
 } // namespace
 
-void cutSelection(Cursor & cur, bool doclear, bool realcut)
+void cutSelection(Cursor & cur, bool realcut)
 {
-       cutSelectionHelper(cur, theCuts, doclear, realcut, true);
+       cutSelectionHelper(cur, theCuts, realcut, true);
 }
 
 
-void cutSelectionToTemp(Cursor & cur, bool doclear, bool realcut)
+void cutSelectionToTemp(Cursor & cur, bool realcut)
 {
-       cutSelectionHelper(cur, tempCut, doclear, realcut, false);
+       cutSelectionHelper(cur, tempCut, realcut, false);
 }
 
 
 void copySelection(Cursor const & cur)
 {
-       copySelection(cur, cur.selectionAsString(true));
+       copySelection(cur, cur.selectionAsString(true, true));
 }
 
 
-void copyInset(Cursor const & cur, Inset * inset, docstring const & plaintext)
+namespace {
+
+void copyInsetToStack(Cursor const & cur, CutStack & cutstack, Inset * inset)
 {
        ParagraphList pars;
        Paragraph par;
@@ -1006,10 +1045,25 @@ void copyInset(Cursor const & cur, Inset * inset, docstring const & plaintext)
        Font font(inherit_font, bp.language);
        par.insertInset(0, inset, font, Change(Change::UNCHANGED));
        pars.push_back(par);
-       theCuts.push(make_pair(pars, bp.documentClassPtr()));
+       cutstack.push(make_pair(pars, make_pair(bp.documentClassPtr(), bp.authors())));
+}
+
+}
+
+
+void copyInset(Cursor const & cur, Inset * inset, docstring const & plaintext)
+{
+       copyInsetToStack(cur, theCuts, inset);
 
        // stuff the selection onto the X clipboard, from an explicit copy request
-       putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
+       BufferParams const & bp = cur.buffer()->params();
+       putClipboard(theCuts[0].first, theCuts[0].second, plaintext, bp);
+}
+
+
+void copyInsetToTemp(Cursor const & cur, Inset * inset)
+{
+       copyInsetToStack(cur, tempCut, inset);
 }
 
 
@@ -1048,9 +1102,12 @@ void copySelectionToStack(CursorData const & cur, CutStack & cutstack)
                BufferParams const & bp = cur.buffer()->params();
                // FIXME This should be the plain layout...right?
                par.setLayout(bp.documentClass().plainLayout());
-               par.insert(0, grabSelection(cur), Font(), Change(Change::UNCHANGED));
+               // For pasting into text, we set the language to the paragraph language
+               // (rather than the default_language which is always English; see #2596)
+               par.insert(0, grabSelection(cur), Font(sane_font, par.getParLanguage(bp)),
+                          Change(Change::UNCHANGED));
                pars.push_back(par);
-               cutstack.push(make_pair(pars, bp.documentClassPtr()));
+               cutstack.push(make_pair(pars, make_pair(bp.documentClassPtr(), bp.authors())));
        }
 }
 
@@ -1064,26 +1121,58 @@ void copySelectionToStack()
 }
 
 
+void copySelectionToTemp(Cursor const & cur)
+{
+       copySelectionToStack(cur, tempCut);
+}
+
+
 void copySelection(Cursor const & cur, docstring const & plaintext)
 {
-       // In tablemode, because copy and paste actually use special table stack
-       // we do not attempt to get selected paragraphs under cursor. Instead, a
-       // paragraph with the plain text version is generated so that table cells
-       // can be pasted as pure text somewhere else.
+       // In tablemode, because copy and paste actually use a special table stack,
+       // we need to go through the cells and collect the paragraphs.
+       // In math matrices, we generate a plain text version.
        if (cur.selBegin().idx() != cur.selEnd().idx()) {
                ParagraphList pars;
-               Paragraph par;
                BufferParams const & bp = cur.buffer()->params();
-               par.setLayout(bp.documentClass().plainLayout());
-               par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
-               pars.push_back(par);
-               theCuts.push(make_pair(pars, bp.documentClassPtr()));
+               if (cur.inMathed()) {
+                       Paragraph par;
+                       par.setLayout(bp.documentClass().plainLayout());
+                       // Replace (column-separating) tabs by space (#4449)
+                       docstring const clean_text = subst(plaintext, '\t', ' ');
+                       // For pasting into text, we set the language to the paragraph language
+                       // (rather than the default_language which is always English; see #11898)
+                       par.insert(0, clean_text, Font(sane_font, par.getParLanguage(bp)),
+                                  Change(Change::UNCHANGED));
+                       pars.push_back(par);
+               } else {
+                       // Get paragraphs from all cells
+                       InsetTabular * table = cur.inset().asInsetTabular();
+                       LASSERT(table, return);
+                       ParagraphList tplist = table->asParList(cur.selBegin().idx(), cur.selEnd().idx());
+                       for (auto & cpar : tplist) {
+                               cpar.setLayout(bp.documentClass().plainLayout());
+                               pars.push_back(cpar);
+                               // since the pars are merged later, we separate them by blank
+                               Paragraph epar;
+                               epar.insert(0, from_ascii(" "), Font(sane_font, epar.getParLanguage(bp)),
+                                           Change(Change::UNCHANGED));
+                               pars.push_back(epar);
+                       }
+                       // remove last empty par
+                       pars.pop_back();
+                       // merge all paragraphs to one
+                       while (pars.size() > 1)
+                               mergeParagraph(bp, pars, 0);
+               }
+               theCuts.push(make_pair(pars, make_pair(bp.documentClassPtr(), bp.authors())));
        } else {
                copySelectionToStack(cur, theCuts);
        }
 
        // stuff the selection onto the X clipboard, from an explicit copy request
-       putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
+       putClipboard(theCuts[0].first, theCuts[0].second, plaintext,
+                       cur.buffer()->params());
 }
 
 
@@ -1095,7 +1184,7 @@ void saveSelection(Cursor const & cur)
        if (cur.selection()
            && cur.selBegin() == cur.bv().cursor().selBegin()
            && cur.selEnd() == cur.bv().cursor().selEnd()) {
-               LYXERR(Debug::SELECTION, "saveSelection: '" << cur.selectionAsString(true) << "'");
+               LYXERR(Debug::SELECTION, "saveSelection: '" << cur.selectionAsString(true, true) << "'");
                copySelectionToStack(cur, selectionBuffer);
        }
 }
@@ -1120,24 +1209,33 @@ void clearCutStack()
 }
 
 
-docstring selection(size_t sel_index, DocumentClassConstPtr docclass)
+docstring selection(size_t sel_index, DocInfoPair docinfo, bool for_math)
 {
        if (sel_index >= theCuts.size())
                return docstring();
 
        unique_ptr<Buffer> buffer(copyToTempBuffer(theCuts[sel_index].first,
-                                                  docclass));
+                                                  docinfo.first));
        if (!buffer)
                return docstring();
 
-       return buffer->paragraphs().back().asString(AS_STR_INSETS | AS_STR_NEWLINES);
+       int options = AS_STR_INSETS | AS_STR_NEWLINES;
+       if (for_math)
+               options |= AS_STR_MATHED;
+
+       return buffer->paragraphs().back().asString(options);
 }
 
 
 void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
-                                               DocumentClassConstPtr docclass, ErrorList & errorList,
-                                               cap::BranchAction branchAction)
+                       DocumentClassConstPtr docclass, AuthorList const & authors,
+                       ErrorList & errorList,
+                       cap::BranchAction branchAction)
 {
+       // Copy authors to the params. We need those pointers.
+       for (Author const & a : authors)
+               cur.buffer()->params().authors().record(a);
+       
        if (cur.inTexted()) {
                Text * text = cur.text();
                LBUFERR(text);
@@ -1162,7 +1260,8 @@ bool pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index)
 
        cur.recordUndo();
        pasteParagraphList(cur, theCuts[sel_index].first,
-                          theCuts[sel_index].second, errorList, BRANCH_ASK);
+                          theCuts[sel_index].second.first, theCuts[sel_index].second.second,
+                          errorList, BRANCH_ASK);
        return true;
 }
 
@@ -1175,7 +1274,8 @@ bool pasteFromTemp(Cursor & cur, ErrorList & errorList)
 
        cur.recordUndo();
        pasteParagraphList(cur, tempCut[0].first,
-                          tempCut[0].second, errorList, BRANCH_IGNORE);
+                       tempCut[0].second.first, tempCut[0].second.second,
+                       errorList, BRANCH_IGNORE);
        return true;
 }
 
@@ -1195,14 +1295,15 @@ bool pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs,
            theClipboard().hasTextContents(Clipboard::LyXTextType)) {
                string lyx = theClipboard().getAsLyX();
                if (!lyx.empty()) {
-                       // For some strange reason gcc 3.2 and 3.3 do not accept
-                       // Buffer buffer(string(), false);
-                       Buffer buffer("", false);
+                       Buffer buffer(string(), false);
+                       buffer.setInternal(true);
                        buffer.setUnnamed(true);
                        if (buffer.readString(lyx)) {
                                cur.recordUndo();
                                pasteParagraphList(cur, buffer.paragraphs(),
-                                       buffer.params().documentClassPtr(), errorList);
+                                                  buffer.params().documentClassPtr(),
+                                                  buffer.params().authors(),
+                                                  errorList);
                                return true;
                        }
                }
@@ -1228,21 +1329,23 @@ bool pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs,
                        docstring text = theClipboard().getAsText(types[i]);
                        available = !text.empty();
                        if (available) {
-                               // For some strange reason gcc 3.2 and 3.3 do not accept
-                               // Buffer buffer(string(), false);
-                               Buffer buffer("", false);
+                               Buffer buffer(string(), false);
+                               buffer.setInternal(true);
                                buffer.setUnnamed(true);
+                               buffer.params() = cur.buffer()->params();
                                available = buffer.importString(names[i], text, errorList);
-                               // TeX2lyx (also used in the HTML chain) assumes English as document language
-                               // if no language is explicitly set (as is the case here).
-                               // We thus reset the temp buffer's language to the context language
-                               buffer.changeLanguage(buffer.language(), cur.getFont().language());
                                if (available)
                                        available = !buffer.paragraphs().empty();
                                if (available && !buffer.paragraphs()[0].empty()) {
+                                       // TeX2lyx (also used in the HTML chain) assumes English as document language
+                                       // if no language is explicitly set (as is the case here).
+                                       // We thus reset the temp buffer's language to the context language
+                                       buffer.changeLanguage(buffer.language(), cur.getFont().language());
                                        cur.recordUndo();
                                        pasteParagraphList(cur, buffer.paragraphs(),
-                                               buffer.params().documentClassPtr(), errorList);
+                                                          buffer.params().documentClassPtr(),
+                                                          buffer.params().authors(),
+                                                          errorList);
                                        return true;
                                }
                        }
@@ -1288,7 +1391,7 @@ void pasteSimpleText(Cursor & cur, bool asParagraphs)
                return;
 
        cur.recordUndo();
-       cutSelection(cur, true, false);
+       cutSelection(cur, false);
        if (asParagraphs)
                cur.text()->insertStringAsParagraphs(cur, text, cur.current_font);
        else
@@ -1322,7 +1425,9 @@ void pasteSelection(Cursor & cur, ErrorList & errorList)
                return;
        cur.recordUndo();
        pasteParagraphList(cur, selectionBuffer[0].first,
-                          selectionBuffer[0].second, errorList);
+                       selectionBuffer[0].second.first,
+                       selectionBuffer[0].second.second,
+                       errorList);
 }
 
 
@@ -1338,20 +1443,20 @@ void replaceSelectionWithString(Cursor & cur, docstring const & str)
        // Insert the new string
        pos_type pos = cur.selEnd().pos();
        Paragraph & par = cur.selEnd().paragraph();
-       docstring::const_iterator cit = str.begin();
-       docstring::const_iterator end = str.end();
-       for (; cit != end; ++cit, ++pos)
-               par.insertChar(pos, *cit, font, cur.buffer()->params().track_changes);
+       for (auto const & c : str) {
+               par.insertChar(pos, c, font, cur.buffer()->params().track_changes);
+               ++pos;
+       }
 
        // Cut the selection
-       cutSelection(cur, true, false);
+       cutSelection(cur, false);
 }
 
 
 void replaceSelection(Cursor & cur)
 {
        if (cur.selection())
-               cutSelection(cur, true, false);
+               cutSelection(cur, false);
 }
 
 
@@ -1376,20 +1481,20 @@ void eraseSelection(Cursor & cur)
                        cur.pos() = cur.lastpos();
        } else if (p->nrows() > 0 && p->ncols() > 0) {
                // This is a grid, delete a nice square region
-               Inset::row_type r1, r2;
-               Inset::col_type c1, c2;
+               row_type r1, r2;
+               col_type c1, c2;
                region(i1, i2, r1, r2, c1, c2);
-               for (Inset::row_type row = r1; row <= r2; ++row)
-                       for (Inset::col_type col = c1; col <= c2; ++col)
+               for (row_type row = r1; row <= r2; ++row)
+                       for (col_type col = c1; col <= c2; ++col)
                                p->cell(p->index(row, col)).clear();
                // We've deleted the whole cell. Only pos 0 is valid.
                cur.pos() = 0;
        } else {
-               Inset::idx_type idx1 = i1.idx();
-               Inset::idx_type idx2 = i2.idx();
+               idx_type idx1 = i1.idx();
+               idx_type idx2 = i2.idx();
                if (idx1 > idx2)
                        swap(idx1, idx2);
-               for (Inset::idx_type idx = idx1 ; idx <= idx2; ++idx)
+               for (idx_type idx = idx1 ; idx <= idx2; ++idx)
                        p->cell(idx).clear();
                // We've deleted the whole cell. Only pos 0 is valid.
                cur.pos() = 0;
@@ -1448,16 +1553,16 @@ docstring grabSelection(CursorData const & cur)
                }
        }
 
-       Inset::row_type r1, r2;
-       Inset::col_type c1, c2;
+       row_type r1, r2;
+       col_type c1, c2;
        region(i1, i2, r1, r2, c1, c2);
 
        docstring data;
        if (i1.inset().asInsetMath()) {
-               for (Inset::row_type row = r1; row <= r2; ++row) {
+               for (row_type row = r1; row <= r2; ++row) {
                        if (row > r1)
                                data += "\\\\";
-                       for (Inset::col_type col = c1; col <= c2; ++col) {
+                       for (col_type col = c1; col <= c2; ++col) {
                                if (col > c1)
                                        data += '&';
                                data += asString(i1.asInsetMath()->