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https://git.lyx.org/repos/lyx.git
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606e6d7dd5
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15452 a592a061-630c-0410-9148-cb99ea01b6c8
794 lines
18 KiB
C
794 lines
18 KiB
C
/**
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* \file paragraph_pimpl.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author John Levon
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "paragraph_pimpl.h"
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#include "paragraph.h"
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#include "bufferparams.h"
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#include "debug.h"
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#include "encoding.h"
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#include "language.h"
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#include "LaTeXFeatures.h"
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#include "LColor.h"
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#include "lyxlength.h"
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#include "lyxrc.h"
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#include "outputparams.h"
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#include "texrow.h"
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#include <boost/next_prior.hpp>
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namespace lyx {
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using std::endl;
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using std::upper_bound;
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using std::lower_bound;
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using std::string;
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// Initialization of the counter for the paragraph id's,
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unsigned int Paragraph::Pimpl::paragraph_id = 0;
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namespace {
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struct special_phrase {
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string phrase;
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docstring macro;
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bool builtin;
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};
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special_phrase const special_phrases[] = {
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{ "LyX", from_ascii("\\LyX{}"), false },
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{ "TeX", from_ascii("\\TeX{}"), true },
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{ "LaTeX2e", from_ascii("\\LaTeXe{}"), true },
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{ "LaTeX", from_ascii("\\LaTeX{}"), true },
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};
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size_t const phrases_nr = sizeof(special_phrases)/sizeof(special_phrase);
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} // namespace anon
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Paragraph::Pimpl::Pimpl(Paragraph * owner)
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: owner_(owner)
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{
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inset_owner = 0;
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id_ = paragraph_id++;
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}
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Paragraph::Pimpl::Pimpl(Pimpl const & p, Paragraph * owner)
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: params(p.params), changes_(p.changes_), owner_(owner)
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{
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inset_owner = p.inset_owner;
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fontlist = p.fontlist;
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id_ = paragraph_id++;
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}
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void Paragraph::Pimpl::setContentsFromPar(Paragraph const & par)
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{
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owner_->text_ = par.text_;
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// FIXME: change tracking (MG)
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changes_ = par.pimpl_->changes_;
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}
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bool Paragraph::Pimpl::isChanged(pos_type start, pos_type end) const
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{
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// FIXME: change tracking (MG)
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return false;
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return changes_.isChanged(start, end);
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}
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void Paragraph::Pimpl::setChange(Change const & change)
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{
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// FIXME: change tracking (MG)
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return;
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changes_.set(change, 0, size());
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if (change.type == Change::UNCHANGED) { // only for UNCHANGED ???
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for (pos_type i = 0; i < size(); ++i) {
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if (owner_->isInset(i)) {
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owner_->getInset(i)->setChange(change);
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}
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}
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}
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}
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void Paragraph::Pimpl::setChange(pos_type pos, Change const & change)
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{
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// FIXME: change tracking (MG)
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return;
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changes_.set(change, pos);
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}
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Change const Paragraph::Pimpl::lookupChange(pos_type pos) const
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{
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// FIXME: change tracking (MG)
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return Change(Change::UNCHANGED);
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return changes_.lookup(pos);
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}
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void Paragraph::Pimpl::acceptChange(pos_type start, pos_type end)
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{
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// FIXME: change tracking (MG)
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return;
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// care for empty pars
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lyxerr[Debug::CHANGES] << "acceptchange" << endl;
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pos_type i = start;
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for (; i < end; ++i) {
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switch (lookupChange(i).type) {
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case Change::UNCHANGED:
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break;
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case Change::INSERTED:
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// FIXME: change tracking (MG)
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changes_.set(Change(Change::UNCHANGED), i);
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break;
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case Change::DELETED:
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// Suppress access to nonexistent
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// "end-of-paragraph char":
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if (i < size()) {
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erase(i);
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--end;
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--i;
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}
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break;
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}
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}
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lyxerr[Debug::CHANGES] << "endacceptchange" << endl;
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// FIXME: change tracking (MG)
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// changes_.reset(Change::UNCHANGED);
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}
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void Paragraph::Pimpl::rejectChange(pos_type start, pos_type end)
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{
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// FIXME: change tracking (MG)
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return;
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// care for empty pars
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pos_type i = start;
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for (; i < end; ++i) {
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switch (lookupChange(i).type) {
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case Change::UNCHANGED:
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break;
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case Change::INSERTED:
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if (i < size()) {
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erase(i);
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--end;
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--i;
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}
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break;
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case Change::DELETED:
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// FIXME: change tracking (MG)
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changes_.set(Change(Change::UNCHANGED), i);
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// No real char at position size():
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if (i < size() && owner_->isInset(i))
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// FIXME: change tracking (MG)
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owner_->getInset(i)->setChange(Change(Change::UNCHANGED));
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break;
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}
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}
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// FIXME: change tracking (MG)
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// changes_.reset(Change::UNCHANGED);
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}
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Paragraph::value_type Paragraph::Pimpl::getChar(pos_type pos) const
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{
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return owner_->getChar(pos);
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}
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void Paragraph::Pimpl::insertChar(pos_type pos, value_type c, Change const & change)
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{
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BOOST_ASSERT(pos <= size());
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// FIXME: change tracking (MG)
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if (false) {
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// changes_.record(change, pos);
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}
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// This is actually very common when parsing buffers (and
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// maybe inserting ascii text)
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if (pos == size()) {
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// when appending characters, no need to update tables
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owner_->text_.push_back(c);
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return;
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}
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owner_->text_.insert(owner_->text_.begin() + pos, c);
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// Update the font table.
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FontTable search_font(pos, LyXFont());
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for (FontList::iterator it = lower_bound(fontlist.begin(),
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fontlist.end(),
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search_font, matchFT());
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it != fontlist.end(); ++it)
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{
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it->pos(it->pos() + 1);
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}
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// Update the insets
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owner_->insetlist.increasePosAfterPos(pos);
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}
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void Paragraph::Pimpl::insertInset(pos_type pos,
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InsetBase * inset, Change const & change)
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{
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BOOST_ASSERT(inset);
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BOOST_ASSERT(pos <= size());
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insertChar(pos, META_INSET, change);
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BOOST_ASSERT(owner_->text_[pos] == META_INSET);
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// Add a new entry in the insetlist.
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owner_->insetlist.insert(inset, pos);
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}
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void Paragraph::Pimpl::erase(pos_type pos)
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{
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// FIXME: change tracking (MG)
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// do something like changes_.erase(i);
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// in one of the next patches, the two erase functions
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// will be merged but I don't want to break too many things at the same time :-)
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// if it is an inset, delete the inset entry
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if (owner_->text_[pos] == Paragraph::META_INSET) {
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owner_->insetlist.erase(pos);
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}
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owner_->text_.erase(owner_->text_.begin() + pos);
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// Erase entries in the tables.
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FontTable search_font(pos, LyXFont());
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FontList::iterator it =
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lower_bound(fontlist.begin(),
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fontlist.end(),
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search_font, matchFT());
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if (it != fontlist.end() && it->pos() == pos &&
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(pos == 0 ||
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(it != fontlist.begin()
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&& boost::prior(it)->pos() == pos - 1))) {
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// If it is a multi-character font
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// entry, we just make it smaller
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// (see update below), otherwise we
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// should delete it.
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unsigned int const i = it - fontlist.begin();
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fontlist.erase(fontlist.begin() + i);
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it = fontlist.begin() + i;
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if (i > 0 && i < fontlist.size() &&
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fontlist[i - 1].font() == fontlist[i].font()) {
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fontlist.erase(fontlist.begin() + i - 1);
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it = fontlist.begin() + i - 1;
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}
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}
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// Update all other entries
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FontList::iterator fend = fontlist.end();
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for (; it != fend; ++it)
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it->pos(it->pos() - 1);
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// Update the insetlist
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owner_->insetlist.decreasePosAfterPos(pos);
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}
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bool Paragraph::Pimpl::erase(pos_type pos, bool /*trackChanges*/)
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{
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BOOST_ASSERT(pos <= size());
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// FIXME: change tracking (MG)
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if (false) {
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Change::Type changetype(changes_.lookup(pos).type);
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// only allow the actual removal if it was /new/ text
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if (changetype != Change::INSERTED) {
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// changes_.record(Change(Change::DELETED), pos);
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if (pos < size() && owner_->isInset(pos))
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// FIXME: change tracking (MG)
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owner_->getInset(pos)->setChange(Change(Change::DELETED));
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return false;
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}
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}
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// Don't physically access nonexistent end-of-paragraph char
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if (pos < size()) {
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erase(pos);
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return true;
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}
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return false;
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}
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int Paragraph::Pimpl::erase(pos_type start, pos_type end, bool trackChanges)
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{
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pos_type i = start;
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for (pos_type count = end - start; count; --count) {
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if (!erase(i, trackChanges))
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++i;
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}
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return end - i;
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}
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void Paragraph::Pimpl::simpleTeXBlanks(odocstream & os, TexRow & texrow,
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pos_type const i,
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unsigned int & column,
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LyXFont const & font,
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LyXLayout const & style)
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{
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if (style.pass_thru)
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return;
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if (column > lyxrc.ascii_linelen
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&& i
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&& getChar(i - 1) != ' '
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&& (i < size() - 1)
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// same in FreeSpacing mode
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&& !owner_->isFreeSpacing()
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// In typewriter mode, we want to avoid
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// ! . ? : at the end of a line
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&& !(font.family() == LyXFont::TYPEWRITER_FAMILY
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&& (getChar(i - 1) == '.'
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|| getChar(i - 1) == '?'
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|| getChar(i - 1) == ':'
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|| getChar(i - 1) == '!'))) {
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os << '\n';
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texrow.newline();
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texrow.start(owner_->id(), i + 1);
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column = 0;
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} else if (style.free_spacing) {
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os << '~';
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} else {
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os << ' ';
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}
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}
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bool Paragraph::Pimpl::isTextAt(string const & str, pos_type pos) const
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{
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pos_type const len = str.length();
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// is the paragraph large enough?
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if (pos + len > size())
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return false;
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// does the wanted text start at point?
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for (string::size_type i = 0; i < str.length(); ++i) {
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if (str[i] != owner_->text_[pos + i])
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return false;
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}
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// is there a font change in middle of the word?
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FontList::const_iterator cit = fontlist.begin();
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FontList::const_iterator end = fontlist.end();
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for (; cit != end; ++cit) {
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if (cit->pos() >= pos)
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break;
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}
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if (cit != end && pos + len - 1 > cit->pos())
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return false;
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return true;
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}
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void Paragraph::Pimpl::simpleTeXSpecialChars(Buffer const & buf,
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BufferParams const & bparams,
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odocstream & os,
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TexRow & texrow,
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OutputParams const & runparams,
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LyXFont & font,
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LyXFont & running_font,
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LyXFont & basefont,
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LyXFont const & outerfont,
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bool & open_font,
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Change::Type & running_change,
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LyXLayout const & style,
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pos_type & i,
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unsigned int & column,
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value_type const c)
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{
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if (style.pass_thru) {
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if (c != Paragraph::META_INSET) {
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if (c != '\0')
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os.put(c);
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} else
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owner_->getInset(i)->plaintext(buf, os, runparams);
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return;
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}
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// Two major modes: LaTeX or plain
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// Handle here those cases common to both modes
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// and then split to handle the two modes separately.
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switch (c) {
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case Paragraph::META_INSET: {
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InsetBase * inset = owner_->getInset(i);
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// FIXME: remove this check
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if (!inset)
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break;
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// FIXME: move this to InsetNewline::latex
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if (inset->lyxCode() == InsetBase::NEWLINE_CODE) {
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// newlines are handled differently here than
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// the default in simpleTeXSpecialChars().
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if (!style.newline_allowed) {
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os << '\n';
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} else {
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if (open_font) {
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column += running_font.latexWriteEndChanges(os, basefont, basefont);
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open_font = false;
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}
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basefont = owner_->getLayoutFont(bparams, outerfont);
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running_font = basefont;
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if (font.family() == LyXFont::TYPEWRITER_FAMILY)
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os << '~';
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if (runparams.moving_arg)
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os << "\\protect ";
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os << "\\\\\n";
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}
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texrow.newline();
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texrow.start(owner_->id(), i + 1);
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column = 0;
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break;
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}
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// output change tracking marks only if desired,
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// if dvipost is installed,
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// and with dvi/ps (other formats don't work)
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LaTeXFeatures features(buf, bparams, runparams);
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bool const output = bparams.outputChanges
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&& runparams.flavor == OutputParams::LATEX
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&& features.isAvailable("dvipost");
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if (inset->canTrackChanges()) {
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column += Changes::latexMarkChange(os, running_change,
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Change::UNCHANGED, output);
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running_change = Change::UNCHANGED;
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}
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bool close = false;
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odocstream::pos_type const len = os.tellp();
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if ((inset->lyxCode() == InsetBase::GRAPHICS_CODE
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|| inset->lyxCode() == InsetBase::MATH_CODE
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|| inset->lyxCode() == InsetBase::URL_CODE)
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&& running_font.isRightToLeft()) {
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os << "\\L{";
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close = true;
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}
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#ifdef WITH_WARNINGS
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#warning Bug: we can have an empty font change here!
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// if there has just been a font change, we are going to close it
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// right now, which means stupid latex code like \textsf{}. AFAIK,
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// this does not harm dvi output. A minor bug, thus (JMarc)
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#endif
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// some insets cannot be inside a font change command
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if (open_font && inset->noFontChange()) {
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column +=running_font.
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latexWriteEndChanges(os,
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basefont,
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basefont);
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open_font = false;
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basefont = owner_->getLayoutFont(bparams, outerfont);
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running_font = basefont;
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}
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int tmp = inset->latex(buf, os, runparams);
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if (close)
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os << '}';
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if (tmp) {
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for (int j = 0; j < tmp; ++j) {
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texrow.newline();
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}
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texrow.start(owner_->id(), i + 1);
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column = 0;
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} else {
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column += os.tellp() - len;
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}
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}
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break;
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default:
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// And now for the special cases within each mode
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switch (c) {
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case '\\':
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os << "\\textbackslash{}";
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column += 15;
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break;
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// The following characters could be written literally in latin1, but they
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// would be wrongly converted on systems where char is signed, so we give
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// the code points.
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// This also makes us independant from the encoding of this source file.
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case 0xb1: // ± PLUS-MINUS SIGN
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case 0xb2: // ² SUPERSCRIPT TWO
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case 0xb3: // ³ SUPERSCRIPT THREE
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case 0xd7: // × MULTIPLICATION SIGN
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case 0xf7: // ÷ DIVISION SIGN
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case 0xb9: // ¹ SUPERSCRIPT ONE
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case 0xac: // ¬ NOT SIGN
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case 0xb5: // µ MICRO SIGN
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if ((bparams.inputenc == "latin1" ||
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bparams.inputenc == "latin9") ||
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(bparams.inputenc == "auto" &&
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(font.language()->encoding()->latexName()
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== "latin1" ||
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font.language()->encoding()->latexName()
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== "latin9"))) {
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os << "\\ensuremath{";
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||
os.put(c);
|
||
os << '}';
|
||
column += 13;
|
||
} else {
|
||
os.put(c);
|
||
}
|
||
break;
|
||
|
||
case '|': case '<': case '>':
|
||
// In T1 encoding, these characters exist
|
||
if (lyxrc.fontenc == "T1") {
|
||
os.put(c);
|
||
//... but we should avoid ligatures
|
||
if ((c == '>' || c == '<')
|
||
&& i <= size() - 2
|
||
&& getChar(i + 1) == c) {
|
||
//os << "\\textcompwordmark{}";
|
||
// Jean-Marc, have a look at
|
||
// this. I think this works
|
||
// equally well:
|
||
os << "\\,{}";
|
||
// Lgb
|
||
column += 19;
|
||
}
|
||
break;
|
||
}
|
||
// Typewriter font also has them
|
||
if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
|
||
os.put(c);
|
||
break;
|
||
}
|
||
// Otherwise, we use what LaTeX
|
||
// provides us.
|
||
switch (c) {
|
||
case '<':
|
||
os << "\\textless{}";
|
||
column += 10;
|
||
break;
|
||
case '>':
|
||
os << "\\textgreater{}";
|
||
column += 13;
|
||
break;
|
||
case '|':
|
||
os << "\\textbar{}";
|
||
column += 9;
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case '-': // "--" in Typewriter mode -> "-{}-"
|
||
if (i <= size() - 2
|
||
&& getChar(i + 1) == '-'
|
||
&& font.family() == LyXFont::TYPEWRITER_FAMILY) {
|
||
os << "-{}";
|
||
column += 2;
|
||
} else {
|
||
os << '-';
|
||
}
|
||
break;
|
||
|
||
case '\"':
|
||
os << "\\char`\\\"{}";
|
||
column += 9;
|
||
break;
|
||
|
||
case 0xa3: // £ POUND SIGN
|
||
if (bparams.inputenc == "default") {
|
||
os << "\\pounds{}";
|
||
column += 8;
|
||
} else {
|
||
os.put(c);
|
||
}
|
||
break;
|
||
|
||
case '$': case '&':
|
||
case '%': case '#': case '{':
|
||
case '}': case '_':
|
||
os << '\\';
|
||
os.put(c);
|
||
column += 1;
|
||
break;
|
||
|
||
case '~':
|
||
os << "\\textasciitilde{}";
|
||
column += 16;
|
||
break;
|
||
|
||
case '^':
|
||
os << "\\textasciicircum{}";
|
||
column += 17;
|
||
break;
|
||
|
||
case '*': case '[':
|
||
// avoid being mistaken for optional arguments
|
||
os << '{';
|
||
os.put(c);
|
||
os << '}';
|
||
column += 2;
|
||
break;
|
||
|
||
case ' ':
|
||
// Blanks are printed before font switching.
|
||
// Sure? I am not! (try nice-latex)
|
||
// I am sure it's correct. LyX might be smarter
|
||
// in the future, but for now, nothing wrong is
|
||
// written. (Asger)
|
||
break;
|
||
|
||
default:
|
||
|
||
// I assume this is hack treating typewriter as verbatim
|
||
if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
|
||
if (c != '\0') {
|
||
os.put(c);
|
||
}
|
||
break;
|
||
}
|
||
|
||
// LyX, LaTeX etc.
|
||
|
||
// FIXME: if we have "LaTeX" with a font
|
||
// change in the middle (before the 'T', then
|
||
// the "TeX" part is still special cased.
|
||
// Really we should only operate this on
|
||
// "words" for some definition of word
|
||
|
||
size_t pnr = 0;
|
||
|
||
for (; pnr < phrases_nr; ++pnr) {
|
||
if (isTextAt(special_phrases[pnr].phrase, i)) {
|
||
os << special_phrases[pnr].macro;
|
||
i += special_phrases[pnr].phrase.length() - 1;
|
||
column += special_phrases[pnr].macro.length() - 1;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (pnr == phrases_nr && c != '\0') {
|
||
os.put(c);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
void Paragraph::Pimpl::validate(LaTeXFeatures & features,
|
||
LyXLayout const & layout) const
|
||
{
|
||
BufferParams const & bparams = features.bufferParams();
|
||
|
||
// check the params.
|
||
if (!params.spacing().isDefault())
|
||
features.require("setspace");
|
||
|
||
// then the layouts
|
||
features.useLayout(layout.name());
|
||
|
||
// then the fonts
|
||
Language const * doc_language = bparams.language;
|
||
|
||
FontList::const_iterator fcit = fontlist.begin();
|
||
FontList::const_iterator fend = fontlist.end();
|
||
for (; fcit != fend; ++fcit) {
|
||
if (fcit->font().noun() == LyXFont::ON) {
|
||
lyxerr[Debug::LATEX] << "font.noun: "
|
||
<< fcit->font().noun()
|
||
<< endl;
|
||
features.require("noun");
|
||
lyxerr[Debug::LATEX] << "Noun enabled. Font: "
|
||
<< fcit->font().stateText(0)
|
||
<< endl;
|
||
}
|
||
switch (fcit->font().color()) {
|
||
case LColor::none:
|
||
case LColor::inherit:
|
||
case LColor::ignore:
|
||
// probably we should put here all interface colors used for
|
||
// font displaying! For now I just add this ones I know of (Jug)
|
||
case LColor::latex:
|
||
case LColor::note:
|
||
break;
|
||
default:
|
||
features.require("color");
|
||
lyxerr[Debug::LATEX] << "Color enabled. Font: "
|
||
<< fcit->font().stateText(0)
|
||
<< endl;
|
||
}
|
||
|
||
Language const * language = fcit->font().language();
|
||
if (language->babel() != doc_language->babel() &&
|
||
language != ignore_language &&
|
||
language != latex_language)
|
||
{
|
||
features.useLanguage(language);
|
||
lyxerr[Debug::LATEX] << "Found language "
|
||
<< language->babel() << endl;
|
||
}
|
||
}
|
||
|
||
if (!params.leftIndent().zero())
|
||
features.require("ParagraphLeftIndent");
|
||
|
||
// then the insets
|
||
InsetList::const_iterator icit = owner_->insetlist.begin();
|
||
InsetList::const_iterator iend = owner_->insetlist.end();
|
||
for (; icit != iend; ++icit) {
|
||
if (icit->inset) {
|
||
icit->inset->validate(features);
|
||
if (layout.needprotect &&
|
||
icit->inset->lyxCode() == InsetBase::FOOT_CODE)
|
||
features.require("NeedLyXFootnoteCode");
|
||
}
|
||
}
|
||
|
||
// then the contents
|
||
for (pos_type i = 0; i < size() ; ++i) {
|
||
for (size_t pnr = 0; pnr < phrases_nr; ++pnr) {
|
||
if (!special_phrases[pnr].builtin
|
||
&& isTextAt(special_phrases[pnr].phrase, i)) {
|
||
features.require(special_phrases[pnr].phrase);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
} // namespace lyx
|