lyx_mirror/src/DocIterator.cpp

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/**
* \file DocIterator.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
* \author Alfredo Braunstein
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#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 "Text.h"
#include "mathed/MathData.h"
#include "mathed/InsetMath.h"
#include "mathed/InsetMathHull.h"
#include "insets/InsetTabular.h"
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#include "support/convert.h"
#include "support/debug.h"
#include "support/ExceptionMessage.h"
#include "support/gettext.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include <ostream>
using namespace std;
using namespace lyx::support;
namespace lyx {
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
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DocIterator doc_iterator_begin(const Buffer * buf0, const Inset * inset0)
{
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Buffer * buf = const_cast<Buffer *>(buf0);
Inset * inset = const_cast<Inset *>(inset0);
DocIterator dit(buf, inset ? inset : &buf->inset());
dit.forwardPos();
return dit;
}
DocIterator doc_iterator_end(const Buffer * buf0, const Inset * inset0)
{
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Buffer * buf = const_cast<Buffer *>(buf0);
Inset * inset = const_cast<Inset *>(inset0);
return DocIterator(buf, inset ? inset : &buf->inset());
}
DocIterator DocIterator::clone(Buffer * buffer) const
{
LASSERT(buffer->isClone(), return DocIterator());
Inset * inset = &buffer->inset();
DocIterator dit(buffer);
size_t const n = slices_.size();
for (size_t i = 0 ; i != n; ++i) {
LBUFERR(inset);
dit.push_back(slices_[i]);
dit.top().inset_ = inset;
if (i + 1 != n)
inset = dit.nextInset();
}
return dit;
}
bool DocIterator::inRegexped() const
{
InsetMath * im = inset().asInsetMath();
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if (!im)
return false;
InsetMathHull * hull = im->asHullInset();
return hull && hull->getType() == hullRegexp;
}
LyXErr & operator<<(LyXErr & os, DocIterator const & it)
{
os.stream() << it;
return os;
}
Inset * DocIterator::nextInset() const
{
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LASSERT(!empty(), return nullptr);
if (pos() == lastpos())
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return nullptr;
if (pos() > lastpos()) {
LYXERR0("Should not happen, but it does: pos() = "
<< pos() << ", lastpos() = " << lastpos());
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return nullptr;
}
if (inMathed())
return nextAtom().nucleus();
return paragraph().getInset(pos());
}
Inset * DocIterator::prevInset() const
{
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LASSERT(!empty(), return nullptr);
if (pos() == 0)
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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
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return nullptr;
else
return prevAtom().nucleus();
}
return paragraph().getInset(pos() - 1);
}
Inset * DocIterator::realInset() const
{
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LASSERT(inTexted(), return nullptr);
// if we are in a tabular, we need the cell
if (inset().lyxCode() == TABULAR_CODE) {
InsetTabular * tabular = inset().asInsetTabular();
return tabular->cell(idx()).get();
}
return &inset();
}
InsetMath & DocIterator::nextMath()
{
return *nextAtom().nucleus();
}
InsetMath & DocIterator::prevMath()
{
return *prevAtom().nucleus();
}
MathAtom & DocIterator::prevAtom() const
{
LASSERT(!empty(), /**/);
LASSERT(pos() > 0, /**/);
return cell()[pos() - 1];
}
MathAtom & DocIterator::nextAtom() const
{
LASSERT(!empty(), /**/);
//lyxerr << "lastpos: " << lastpos() << " next atom:\n" << *this << endl;
LASSERT(pos() < lastpos(), /**/);
return cell()[pos()];
}
Text * DocIterator::text() const
{
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LASSERT(!empty(), return nullptr);
return top().text();
}
Paragraph & DocIterator::paragraph() const
{
if (!inTexted()) {
LYXERR0(*this);
LBUFERR(false);
}
return top().paragraph();
}
Paragraph & DocIterator::innerParagraph() const
{
LBUFERR(!empty());
return innerTextSlice().paragraph();
}
FontSpan DocIterator::locateWord(word_location const loc) const
{
FontSpan f = FontSpan();
if (!top().text()->empty()) {
f.first = pos();
top().paragraph().locateWord(f.first, f.last, loc);
}
return f;
}
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CursorSlice const & DocIterator::innerTextSlice() const
{
LBUFERR(!empty());
// go up until first non-0 text is hit
// (innermost text is 0 in mathed)
for (int i = depth() - 1; i >= 0; --i)
if (slices_[i].text())
return slices_[i];
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// This case is in principle not possible. We _must_
// be inside a Text.
LBUFERR(false);
// Squash warning
static const CursorSlice c;
return c;
}
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docstring DocIterator::paragraphGotoArgument() const
{
CursorSlice const & s = innerTextSlice();
return convert<docstring>(s.paragraph().id()) + ' ' +
convert<docstring>(s.pos());
}
DocIterator DocIterator::getInnerText() const
{
DocIterator texted = *this;
while (!texted.inTexted())
texted.pop_back();
return texted;
}
pit_type DocIterator::lastpit() const
{
return inMathed() ? 0 : text()->paragraphs().size() - 1;
}
pos_type DocIterator::lastpos() const
{
return inMathed() ? cell().size() : paragraph().size();
}
idx_type DocIterator::lastidx() const
{
return top().lastidx();
}
size_t DocIterator::nargs() const
{
// assume 1x1 grid for main text
return top().nargs();
}
size_t DocIterator::ncols() const
{
// assume 1x1 grid for main text
return top().ncols();
}
size_t DocIterator::nrows() const
{
// assume 1x1 grid for main text
return top().nrows();
}
row_type DocIterator::row() const
{
return top().row();
}
col_type DocIterator::col() const
{
return top().col();
}
MathData & DocIterator::cell() const
{
// LASSERT(inMathed(), /**/);
return top().cell();
}
Text * DocIterator::innerText() const
{
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LASSERT(!empty(), return nullptr);
return innerTextSlice().text();
}
Inset * DocIterator::innerInsetOfType(int code) const
{
for (int i = depth() - 1; i >= 0; --i)
if (slices_[i].inset_->lyxCode() == code)
return slices_[i].inset_;
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return nullptr;
}
bool DocIterator::posBackward()
{
if (pos() == 0)
return false;
--pos();
return true;
}
bool DocIterator::posForward()
{
if (pos() == lastpos())
return false;
++pos();
return true;
}
// This duplicates code above, but is in the critical path.
// So please think twice before adding stuff
void DocIterator::forwardPos()
{
// this dog bites his tail
if (empty()) {
push_back(CursorSlice(*inset_));
return;
}
CursorSlice & tip = top();
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
//lyxerr << "XXX\n" << *this << endl;
// not at cell/paragraph end?
if (tip.pos() != tip.lastpos()) {
// move into an inset to the right if possible
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Inset * n = nullptr;
if (inMathed())
n = (tip.cell().begin() + tip.pos())->nucleus();
else
n = paragraph().getInset(tip.pos());
if (n && n->isActive()) {
//lyxerr << "... descend" << endl;
push_back(CursorSlice(*n));
return;
}
}
// jump to the next cell/paragraph if possible
if (!tip.at_end()) {
tip.forwardPos();
return;
}
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
// otherwise leave inset and jump over inset as a whole
pop_back();
// 'tip' is invalid now...
if (!empty())
++top().pos();
}
void DocIterator::forwardPosIgnoreCollapsed()
{
Inset * const nextinset = nextInset();
// FIXME: the check for asInsetMath() shouldn't be necessary
// but math insets do not return a sensible editable() state yet.
if (nextinset && !nextinset->asInsetMath()
&& !nextinset->editable()) {
++top().pos();
return;
}
forwardPos();
}
void DocIterator::forwardPar()
{
forwardPos();
while (!empty() && (!inTexted() || pos() != 0)) {
if (inTexted()) {
pos_type const lastp = lastpos();
Paragraph const & par = paragraph();
pos_type & pos = top().pos();
if (par.insetList().empty())
pos = lastp;
else
while (pos < lastp && !par.isInset(pos))
++pos;
}
forwardPos();
}
}
void DocIterator::forwardChar()
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
{
forwardPos();
while (!empty() && pos() == lastpos())
forwardPos();
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
}
void DocIterator::forwardInset()
{
forwardPos();
while (!empty() && !nextInset()) {
if (inTexted()) {
pos_type const lastp = lastpos();
Paragraph const & par = paragraph();
pos_type & pos = top().pos();
while (pos < lastp && !par.isInset(pos))
++pos;
if (pos < lastp)
break;
}
forwardPos();
}
}
void DocIterator::backwardChar()
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
{
backwardPos();
while (!empty() && pos() == lastpos())
backwardPos();
}
void DocIterator::backwardPos()
{
//this dog bites his tail
if (empty()) {
push_back(CursorSlice(*inset_));
top().idx() = lastidx();
top().pit() = lastpit();
top().pos() = lastpos();
return;
}
// at inset beginning?
if (top().at_begin()) {
pop_back();
return;
}
top().backwardPos();
// entered another cell/paragraph from the right?
if (top().pos() == top().lastpos())
return;
// move into an inset to the left if possible
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Inset * n = nullptr;
if (inMathed())
n = (top().cell().begin() + top().pos())->nucleus();
else
n = paragraph().getInset(top().pos());
if (n && n->isActive()) {
push_back(CursorSlice(*n));
top().idx() = lastidx();
top().pit() = lastpit();
top().pos() = lastpos();
}
}
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()
{
backwardPos();
while (!empty() && !nextInset()) {
if (inTexted()) {
pos_type const lastp = lastpos();
Paragraph const & par = paragraph();
pos_type & pos = top().pos();
while (pos > 0 && (pos == lastp || !par.isInset(pos)))
--pos;
if (pos > 0)
break;
}
backwardPos();
}
}
#endif
bool DocIterator::hasPart(DocIterator const & it) const
{
// it can't be a part if it is larger
if (it.depth() > depth())
return false;
// as inset adresses are the 'last' level
return &it.top().inset() == &slices_[it.depth() - 1].inset();
}
bool DocIterator::allowSpellCheck() const
{
/// spell check is disabled if the iterator position
/// is inside of an inset which disables the spell checker
size_t const n = depth();
for (size_t i = 0; i < n; ++i) {
if (!slices_[i].inset_->allowSpellCheck())
return false;
}
return true;
}
void DocIterator::updateInsets(Inset * inset)
{
// this function re-creates the cache of inset pointers.
//lyxerr << "converting:\n" << *this << endl;
DocIterator dit = *this;
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;
if (i + 1 != n)
inset = nextInset();
}
//lyxerr << "converted:\n" << *this << endl;
}
bool DocIterator::fixIfBroken()
{
if (empty())
return false;
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// 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();
size_t i = 0;
size_t n = slices_.size();
for (; i != n; ++i) {
CursorSlice & cs = slices_[i];
if (&cs.inset() != inset || ! cs.inset().isActive()) {
// the whole slice is wrong, chop off this as well
--i;
LYXERR(Debug::DEBUG, "fixIfBroken(): inset changed");
break;
} else if (cs.idx() > cs.lastidx()) {
cs.idx() = cs.lastidx();
cs.pit() = cs.lastpit();
cs.pos() = cs.lastpos();
LYXERR(Debug::DEBUG, "fixIfBroken(): idx fixed");
break;
} else if (cs.pit() > cs.lastpit()) {
cs.pit() = cs.lastpit();
cs.pos() = cs.lastpos();
LYXERR(Debug::DEBUG, "fixIfBroken(): pit fixed");
break;
} else if (cs.pos() > cs.lastpos()) {
cs.pos() = cs.lastpos();
LYXERR(Debug::DEBUG, "fixIfBroken(): pos fixed");
break;
} else if (i != n - 1 && cs.pos() != cs.lastpos()) {
// get inset which is supposed to be in the next slice
if (cs.inset().inMathed())
inset = (cs.cell().begin() + cs.pos())->nucleus();
else if (Inset * csInset = cs.paragraph().getInset(cs.pos()))
inset = csInset;
else {
// there are slices left, so there must be another inset
break;
}
}
}
// Did we make it through the whole slice stack? Otherwise there
// was a problem at slice i, and we have to chop off above
if (i < n) {
LYXERR(Debug::DEBUG, "fixIfBroken(): cursor chopped at " << i);
resize(i + 1);
return true;
} else
return false;
}
void DocIterator::sanitize()
{
// keep a copy of the slices
vector<CursorSlice> const sl = slices_;
slices_.clear();
if (buffer_)
inset_ = &buffer_->inset();
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) {
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if (inset == nullptr) {
// FIXME
LYXERR0("Null inset on cursor stack.");
fixIfBroken();
break;
}
if (!inset->isActive()) {
LYXERR0("Inset found on cursor stack is not active.");
fixIfBroken();
break;
}
push_back(sl[i]);
top().inset_ = inset;
if (fixIfBroken())
break;
if (i + 1 != n)
inset = nextInset();
}
}
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) {
if (slices_[l].asInsetMath() && &slices_[l].cell() == &cell)
return l;
}
return -1;
}
2017-07-03 17:53:14 +00:00
int DocIterator::find(Inset const * inset) const
{
for (size_t l = 0; l != slices_.size(); ++l) {
if (&slices_[l].inset() == inset)
return l;
}
return -1;
}
void DocIterator::cutOff(int above, vector<CursorSlice> & cut)
{
cut = vector<CursorSlice>(slices_.begin() + above + 1, slices_.end());
slices_.resize(above + 1);
}
void DocIterator::cutOff(int above)
{
slices_.resize(above + 1);
}
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void DocIterator::append(vector<CursorSlice> const & x)
{
slices_.insert(slices_.end(), x.begin(), x.end());
}
void DocIterator::append(idx_type idx, pos_type pos)
{
slices_.push_back(CursorSlice());
top().idx() = idx;
top().pos() = pos;
}
docstring DocIterator::getPossibleLabel() const
{
return inMathed() ? from_ascii("eq:") : text()->getPossibleLabel(*this);
}
Encoding const * DocIterator::getEncoding() const
{
if (empty())
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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 =
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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(),
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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(),
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otext.outerFont(slices_[i].pit())).language();
// Again, if we have a custom encoding, this is used
// instead of the language's.
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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)
os << " " << dit[i] << "\n";
return os;
}
///////////////////////////////////////////////////////
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StableDocIterator::StableDocIterator(DocIterator const & dit) :
data_(dit.internalData())
{
for (size_t i = 0, n = data_.size(); i != n; ++i)
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data_[i].inset_ = nullptr;
}
DocIterator StableDocIterator::asDocIterator(Buffer * buf) const
{
DocIterator dit(buf);
dit.slices_ = data_;
dit.sanitize();
return dit;
}
ostream & operator<<(ostream & os, StableDocIterator const & dit)
{
for (size_t i = 0, n = dit.data_.size(); i != n; ++i)
os << " " << dit.data_[i] << "\n";
return os;
}
bool operator==(StableDocIterator const & dit1, StableDocIterator const & dit2)
{
return dit1.data_ == dit2.data_;
}
} // namespace lyx