X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FDocIterator.cpp;h=31a5bffcafe0f47630b2da56ce009df69c61b6ef;hb=b198a36a363bb6a084407d476942d68ef5fb5e86;hp=fe1250ff335bf5d91330d12c79ca7bf5c60f241a;hpb=d0acc3e570447b293169b8bdd5ac67aaade189e0;p=lyx.git

diff --git a/src/DocIterator.cpp b/src/DocIterator.cpp
index fe1250ff33..31a5bffcaf 100644
--- a/src/DocIterator.cpp
+++ b/src/DocIterator.cpp
@@ -15,9 +15,12 @@
 #include "DocIterator.h"
 
 #include "Buffer.h"
+#include "BufferParams.h"
+#include "Encoding.h"
+#include "Font.h"
 #include "InsetList.h"
+#include "Language.h"
 #include "Paragraph.h"
-#include "LyXRC.h"
 #include "Text.h"
 
 #include "mathed/MathData.h"
@@ -41,26 +44,9 @@ using namespace lyx::support;
 namespace lyx {
 
 
-DocIterator::DocIterator()
-	: boundary_(false), inset_(0), buffer_(0)
-{}
-
-
-// We could be able to get rid of this if only every BufferView were
-// associated to a buffer on construction.
-DocIterator::DocIterator(Buffer * buf)
-	: boundary_(false), inset_(0), buffer_(buf)
-{}
-
-
-DocIterator::DocIterator(Buffer * buf, Inset * inset)
-	: boundary_(false), inset_(inset), buffer_(buf)
-{}
-
-
 DocIterator doc_iterator_begin(const Buffer * buf0, const Inset * inset0)
 {
-	Buffer * buf = const_cast<Buffer *>(buf0);	
+	Buffer * buf = const_cast<Buffer *>(buf0);
 	Inset * inset = const_cast<Inset *>(inset0);
 	DocIterator dit(buf, inset ? inset : &buf->inset());
 	dit.forwardPos();
@@ -70,7 +56,7 @@ DocIterator doc_iterator_begin(const Buffer * buf0, const Inset * inset0)
 
 DocIterator doc_iterator_end(const Buffer * buf0, const Inset * inset0)
 {
-	Buffer * buf = const_cast<Buffer *>(buf0);	
+	Buffer * buf = const_cast<Buffer *>(buf0);
 	Inset * inset = const_cast<Inset *>(inset0);
 	return DocIterator(buf, inset ? inset : &buf->inset());
 }
@@ -96,7 +82,7 @@ DocIterator DocIterator::clone(Buffer * buffer) const
 bool DocIterator::inRegexped() const
 {
 	InsetMath * im = inset().asInsetMath();
-	if (!im) 
+	if (!im)
 		return false;
 	InsetMathHull * hull = im->asHullInset();
 	return hull && hull->getType() == hullRegexp;
@@ -112,13 +98,13 @@ LyXErr & operator<<(LyXErr & os, DocIterator const & it)
 
 Inset * DocIterator::nextInset() const
 {
-	LASSERT(!empty(), return 0);
+	LASSERT(!empty(), return nullptr);
 	if (pos() == lastpos())
-		return 0;
+		return nullptr;
 	if (pos() > lastpos()) {
 		LYXERR0("Should not happen, but it does: pos() = "
 			<< pos() << ", lastpos() = " << lastpos());
-		return 0;
+		return nullptr;
 	}
 	if (inMathed())
 		return nextAtom().nucleus();
@@ -128,15 +114,15 @@ Inset * DocIterator::nextInset() const
 
 Inset * DocIterator::prevInset() const
 {
-	LASSERT(!empty(), return 0);
+	LASSERT(!empty(), return nullptr);
 	if (pos() == 0)
-		return 0;
+		return nullptr;
 	if (inMathed()) {
 		if (cell().empty())
 			// FIXME: this should not happen but it does.
 			// See bug 3189
 			// http://www.lyx.org/trac/ticket/3189
-			return 0;
+			return nullptr;
 		else
 			return prevAtom().nucleus();
 	}
@@ -146,7 +132,7 @@ Inset * DocIterator::prevInset() const
 
 Inset * DocIterator::realInset() const
 {
-	LASSERT(inTexted(), return 0);
+	LASSERT(inTexted(), return nullptr);
 	// if we are in a tabular, we need the cell
 	if (inset().lyxCode() == TABULAR_CODE) {
 		InsetTabular * tabular = inset().asInsetTabular();
@@ -156,6 +142,18 @@ Inset * DocIterator::realInset() const
 }
 
 
+InsetMath & DocIterator::nextMath()
+{
+	return *nextAtom().nucleus();
+}
+
+
+InsetMath & DocIterator::prevMath()
+{
+	return *prevAtom().nucleus();
+}
+
+
 MathAtom & DocIterator::prevAtom() const
 {
 	LASSERT(!empty(), /**/);
@@ -175,7 +173,7 @@ MathAtom & DocIterator::nextAtom() const
 
 Text * DocIterator::text() const
 {
-	LASSERT(!empty(), return 0);
+	LASSERT(!empty(), return nullptr);
 	return top().text();
 }
 
@@ -256,7 +254,7 @@ pos_type DocIterator::lastpos() const
 }
 
 
-DocIterator::idx_type DocIterator::lastidx() const
+idx_type DocIterator::lastidx() const
 {
 	return top().lastidx();
 }
@@ -283,13 +281,13 @@ size_t DocIterator::nrows() const
 }
 
 
-DocIterator::row_type DocIterator::row() const
+row_type DocIterator::row() const
 {
 	return top().row();
 }
 
 
-DocIterator::col_type DocIterator::col() const
+col_type DocIterator::col() const
 {
 	return top().col();
 }
@@ -304,7 +302,7 @@ MathData & DocIterator::cell() const
 
 Text * DocIterator::innerText() const
 {
-	LASSERT(!empty(), return 0);
+	LASSERT(!empty(), return nullptr);
 	return innerTextSlice().text();
 }
 
@@ -314,7 +312,7 @@ Inset * DocIterator::innerInsetOfType(int code) const
 	for (int i = depth() - 1; i >= 0; --i)
 		if (slices_[i].inset_->lyxCode() == code)
 			return slices_[i].inset_;
-	return 0;
+	return nullptr;
 }
 
 
@@ -352,7 +350,7 @@ void DocIterator::forwardPos()
 	// not at cell/paragraph end?
 	if (tip.pos() != tip.lastpos()) {
 		// move into an inset to the right if possible
-		Inset * n = 0;
+		Inset * n = nullptr;
 		if (inMathed())
 			n = (tip.cell().begin() + tip.pos())->nucleus();
 		else
@@ -471,7 +469,7 @@ void DocIterator::backwardPos()
 		return;
 
 	// move into an inset to the left if possible
-	Inset * n = 0;
+	Inset * n = nullptr;
 	if (inMathed())
 		n = (top().cell().begin() + top().pos())->nucleus();
 	else
@@ -485,6 +483,18 @@ void DocIterator::backwardPos()
 }
 
 
+void DocIterator::backwardPosIgnoreCollapsed()
+{
+	backwardPos();
+	if (inTexted()) {
+		Inset const * ins = realInset();
+		if (ins && !ins->editable()) {
+			pop_back(); // move out of collapsed inset
+		}
+	}
+}
+
+
 #if 0
 // works, but currently not needed
 void DocIterator::backwardInset()
@@ -539,6 +549,11 @@ void DocIterator::updateInsets(Inset * inset)
 	size_t const n = slices_.size();
 	slices_.resize(0);
 	for (size_t i = 0 ; i < n; ++i) {
+		if (dit[i].empty() && pos() > 0 && prevMath().lyxCode() == MATH_SCRIPT_CODE)
+			// Workaround: With empty optional argument and a trailing script,
+			// we have empty slices in math macro args (#11676)
+			// FIXME: Find real cause!
+			continue;
 		LBUFERR(inset);
 		push_back(dit[i]);
 		top().inset_ = inset;
@@ -554,7 +569,7 @@ bool DocIterator::fixIfBroken()
 	if (empty())
 		return false;
 
-	// Go through the slice stack from the bottom. 
+	// Go through the slice stack from the bottom.
 	// Check that all coordinates (idx, pit, pos) are correct and
 	// that the inset is the one which is claimed to be there
 	Inset * inset = &slices_[0].inset();
@@ -562,7 +577,7 @@ bool DocIterator::fixIfBroken()
 	size_t n = slices_.size();
 	for (; i != n; ++i) {
 		CursorSlice & cs = slices_[i];
-		if (&cs.inset() != inset || cs.nargs() == 0) {
+		if (&cs.inset() != inset || ! cs.inset().isActive()) {
 			// the whole slice is wrong, chop off this as well
 			--i;
 			LYXERR(Debug::DEBUG, "fixIfBroken(): inset changed");
@@ -616,13 +631,9 @@ void DocIterator::sanitize()
 	Inset * inset = inset_;
 	// re-add the slices one by one, and adjust the inset pointer.
 	for (size_t i = 0, n = sl.size(); i != n; ++i) {
-		if (inset == 0) {
+		if (inset == nullptr) {
 			// FIXME
-			LYXERR0(" Should not happen, but does e.g. after "
-				"C-n C-l C-z S-C-z\n"
-				<< " or when a Buffer has been concurrently edited by two views"
-				<< '\n' << "dit: " << *this << '\n'
-				<< " lastpos: " << slices_[i].lastpos());
+			LYXERR0("Null inset on cursor stack.");
 			fixIfBroken();
 			break;
 		}
@@ -641,6 +652,26 @@ void DocIterator::sanitize()
 }
 
 
+bool DocIterator::isInside(Inset const * p) const
+{
+	for (CursorSlice const & sl : slices_)
+		if (&sl.inset() == p)
+			return true;
+	return false;
+}
+
+
+void DocIterator::leaveInset(Inset const & inset)
+{
+	for (size_t i = 0; i != slices_.size(); ++i) {
+		if (&slices_[i].inset() == &inset) {
+			resize(i);
+			return;
+		}
+	}
+}
+
+
 int DocIterator::find(MathData const & cell) const
 {
 	for (size_t l = 0; l != slices_.size(); ++l) {
@@ -651,7 +682,7 @@ int DocIterator::find(MathData const & cell) const
 }
 
 
-int DocIterator::find(Inset const * inset) const 
+int DocIterator::find(Inset const * inset) const
 {
 	for (size_t l = 0; l != slices_.size(); ++l) {
 		if (&slices_[l].inset() == inset)
@@ -674,13 +705,13 @@ void DocIterator::cutOff(int above)
 }
 
 
-void DocIterator::append(vector<CursorSlice> const & x) 
+void DocIterator::append(vector<CursorSlice> const & x)
 {
 	slices_.insert(slices_.end(), x.begin(), x.end());
 }
 
 
-void DocIterator::append(DocIterator::idx_type idx, pos_type pos) 
+void DocIterator::append(idx_type idx, pos_type pos)
 {
 	slices_.push_back(CursorSlice());
 	top().idx() = idx;
@@ -688,6 +719,73 @@ void DocIterator::append(DocIterator::idx_type idx, pos_type pos)
 }
 
 
+docstring DocIterator::getPossibleLabel() const
+{
+	return inMathed() ? from_ascii("eq:") : text()->getPossibleLabel(*this);
+}
+
+
+Encoding const * DocIterator::getEncoding() const
+{
+	if (empty())
+		return nullptr;
+
+	BufferParams const & bp = buffer()->params();
+	if (bp.useNonTeXFonts)
+		return encodings.fromLyXName("utf8-plain");
+
+	// With platex, we don't switch encodings (not even if forced).
+	if (bp.encoding().package() == Encoding::japanese)
+		return &bp.encoding();
+
+	CursorSlice const & sl = innerTextSlice();
+	Text const & text = *sl.text();
+	Language const * lang =
+		text.getPar(sl.pit()).getFont(bp, sl.pos(), text.outerFont(sl.pit())).language();
+	// If we have a custom encoding for the buffer, we don't switch
+	// encodings (see output_latex::switchEncoding())
+	bool const customenc = bp.inputenc != "auto-legacy" && bp.inputenc != "auto-legacy-plain";
+	Encoding const * enc = customenc ? &bp.encoding() : lang->encoding();
+
+	// Some insets force specific encodings sometimes (e.g., listings in
+	// multibyte context forces singlebyte).
+	if (inset().forcedEncoding(enc, encodings.fromLyXName("iso8859-1"))) {
+		// Get the language outside the inset
+		size_t const n = depth();
+		for (size_t i = 0; i < n; ++i) {
+			Text const & otext = *slices_[i].text();
+			Language const * olang =
+					otext.getPar(slices_[i].pit()).getFont(bp, slices_[i].pos(),
+									       otext.outerFont(slices_[i].pit())).language();
+			Encoding const * oenc = olang->encoding();
+			if (oenc->name() != "inherit")
+				return inset().forcedEncoding(enc, oenc);
+		}
+		// Fall back to buffer encoding if no outer lang was found.
+		return inset().forcedEncoding(enc, &bp.encoding());
+	}
+
+	// Inherited encoding (latex_language) is determined by the context
+	// Look for the first outer encoding that is not itself "inherit"
+	if (lang->encoding()->name() == "inherit") {
+		size_t const n = depth();
+		for (size_t i = 0; i < n; ++i) {
+			Text const & otext = *slices_[i].text();
+			Language const * olang =
+					otext.getPar(slices_[i].pit()).getFont(bp, slices_[i].pos(),
+									       otext.outerFont(slices_[i].pit())).language();
+			// Again, if we have a custom encoding, this is used
+			// instead of the language's.
+			Encoding const * oenc = customenc ? &bp.encoding() : olang->encoding();
+			if (olang->encoding()->name() != "inherit")
+				return oenc;
+		}
+	}
+
+	return enc;
+}
+
+
 ostream & operator<<(ostream & os, DocIterator const & dit)
 {
 	for (size_t i = 0, n = dit.depth(); i != n; ++i)
@@ -702,7 +800,7 @@ StableDocIterator::StableDocIterator(DocIterator const & dit) :
 	data_(dit.internalData())
 {
 	for (size_t i = 0, n = data_.size(); i != n; ++i)
-		data_[i].inset_ = 0;
+		data_[i].inset_ = nullptr;
 }