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lyx_mirror/src/Paragraph.cpp
Juergen Spitzmueller e6105275af Consider change tracking in setBeginOfBody() 
Fixes #11749
2020-03-06 11:49:32 +01:00

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/**
* \file Paragraph.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Asger Alstrup
* \author Lars Gullik Bjønnes
* \author Richard Heck (XHTML output)
* \author Jean-Marc Lasgouttes
* \author Angus Leeming
* \author John Levon
* \author André Pönitz
* \author Dekel Tsur
* \author Jürgen Vigna
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Paragraph.h"
#include "LayoutFile.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "Changes.h"
#include "Counters.h"
#include "BufferEncodings.h"
#include "InsetList.h"
#include "Language.h"
#include "LaTeXFeatures.h"
#include "Layout.h"
#include "Length.h"
#include "Font.h"
#include "FontList.h"
#include "LyXRC.h"
#include "OutputParams.h"
#include "output_latex.h"
#include "output_xhtml.h"
#include "ParagraphParameters.h"
#include "SpellChecker.h"
#include "sgml.h"
#include "texstream.h"
#include "TextClass.h"
#include "TexRow.h"
#include "Text.h"
#include "WordLangTuple.h"
#include "WordList.h"
#include "frontends/alert.h"
#include "insets/InsetBibitem.h"
#include "insets/InsetLabel.h"
#include "insets/InsetSpecialChar.h"
#include "insets/InsetText.h"
#include "mathed/InsetMathHull.h"
#include "support/debug.h"
#include "support/docstring_list.h"
#include "support/ExceptionMessage.h"
#include "support/gettext.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include "support/textutils.h"
#include <atomic>
#include <sstream>
#include <vector>
using namespace std;
using namespace lyx::support;
// OSX clang, gcc < 4.8.0, and msvc < 2015 do not support C++11 thread_local
#if defined(__APPLE__) || (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ < 8)
#define THREAD_LOCAL_STATIC static __thread
#elif defined(_MSC_VER) && (_MSC_VER < 1900)
#define THREAD_LOCAL_STATIC static __declspec(thread)
#else
#define THREAD_LOCAL_STATIC thread_local static
#endif
namespace lyx {
namespace {
/// Inset identifier (above 0x10ffff, for ucs-4)
char_type const META_INSET = 0x200001;
} // namespace
/////////////////////////////////////////////////////////////////////
//
// SpellResultRange
//
/////////////////////////////////////////////////////////////////////
class SpellResultRange {
public:
SpellResultRange(FontSpan range, SpellChecker::Result result)
: range_(range), result_(result)
{}
///
FontSpan const & range() const { return range_; }
///
void range(FontSpan const & r) { range_ = r; }
///
SpellChecker::Result result() const { return result_; }
///
void result(SpellChecker::Result r) { result_ = r; }
///
bool contains(pos_type pos) const { return range_.contains(pos); }
///
bool covered(FontSpan const & r) const
{
// 1. first of new range inside current range or
// 2. last of new range inside current range or
// 3. first of current range inside new range or
// 4. last of current range inside new range
//FIXME: is this the same as !range_.intersect(r).empty() ?
return range_.contains(r.first) || range_.contains(r.last) ||
r.contains(range_.first) || r.contains(range_.last);
}
///
void shift(pos_type pos, int offset)
{
if (range_.first > pos) {
range_.first += offset;
range_.last += offset;
} else if (range_.last >= pos) {
range_.last += offset;
}
}
private:
FontSpan range_ ;
SpellChecker::Result result_ ;
};
/////////////////////////////////////////////////////////////////////
//
// SpellCheckerState
//
/////////////////////////////////////////////////////////////////////
class SpellCheckerState {
public:
SpellCheckerState()
{
needs_refresh_ = true;
current_change_number_ = 0;
}
void setRange(FontSpan const & fp, SpellChecker::Result state)
{
Ranges result;
RangesIterator et = ranges_.end();
RangesIterator it = ranges_.begin();
for (; it != et; ++it) {
if (!it->covered(fp))
result.push_back(SpellResultRange(it->range(), it->result()));
else if (state == SpellChecker::WORD_OK) {
// trim or split the current misspelled range
// store misspelled ranges only
FontSpan range = it->range();
if (fp.first > range.first) {
// misspelled area in front of WORD_OK
range.last = fp.first - 1;
result.push_back(SpellResultRange(range, it->result()));
range = it->range();
}
if (fp.last < range.last) {
// misspelled area after WORD_OK range
range.first = fp.last + 1;
result.push_back(SpellResultRange(range, it->result()));
}
}
}
ranges_ = result;
if (state != SpellChecker::WORD_OK)
ranges_.push_back(SpellResultRange(fp, state));
}
void increasePosAfterPos(pos_type pos)
{
correctRangesAfterPos(pos, 1);
needsRefresh(pos);
}
void decreasePosAfterPos(pos_type pos)
{
correctRangesAfterPos(pos, -1);
needsRefresh(pos);
}
void refreshLast(pos_type pos)
{
if (pos < refresh_.last)
refresh_.last = pos;
}
SpellChecker::Result getState(pos_type pos) const
{
SpellChecker::Result result = SpellChecker::WORD_OK;
RangesIterator et = ranges_.end();
RangesIterator it = ranges_.begin();
for (; it != et; ++it) {
if(it->contains(pos)) {
return it->result();
}
}
return result;
}
FontSpan const & getRange(pos_type pos) const
{
/// empty span to indicate mismatch
static FontSpan empty_;
RangesIterator et = ranges_.end();
RangesIterator it = ranges_.begin();
for (; it != et; ++it) {
if(it->contains(pos)) {
return it->range();
}
}
return empty_;
}
bool needsRefresh() const
{
return needs_refresh_;
}
SpellChecker::ChangeNumber currentChangeNumber() const
{
return current_change_number_;
}
void refreshRange(pos_type & first, pos_type & last) const
{
first = refresh_.first;
last = refresh_.last;
}
void needsRefresh(pos_type pos)
{
if (needs_refresh_ && pos != -1) {
if (pos < refresh_.first)
refresh_.first = pos;
if (pos > refresh_.last)
refresh_.last = pos;
} else if (pos != -1) {
// init request check for neighbour positions too
refresh_.first = pos > 0 ? pos - 1 : 0;
// no need for special end of paragraph check
refresh_.last = pos + 1;
}
needs_refresh_ = pos != -1;
}
void needsCompleteRefresh(SpellChecker::ChangeNumber change_number)
{
needs_refresh_ = true;
refresh_.first = 0;
refresh_.last = -1;
current_change_number_ = change_number;
}
private:
typedef vector<SpellResultRange> Ranges;
typedef Ranges::const_iterator RangesIterator;
Ranges ranges_;
/// the area of the paragraph with pending spell check
FontSpan refresh_;
bool needs_refresh_;
/// spell state cache version number
SpellChecker::ChangeNumber current_change_number_;
void correctRangesAfterPos(pos_type pos, int offset)
{
RangesIterator et = ranges_.end();
Ranges::iterator it = ranges_.begin();
for (; it != et; ++it) {
it->shift(pos, offset);
}
}
};
/////////////////////////////////////////////////////////////////////
//
// Paragraph::Private
//
/////////////////////////////////////////////////////////////////////
class Paragraph::Private
{
// Enforce our own "copy" constructor
Private(Private const &) = delete;
Private & operator=(Private const &) = delete;
// Unique ID generator
static int make_id();
public:
///
Private(Paragraph * owner, Layout const & layout);
/// "Copy constructor"
Private(Private const &, Paragraph * owner);
/// Copy constructor from \p beg to \p end
Private(Private const &, Paragraph * owner, pos_type beg, pos_type end);
///
void insertChar(pos_type pos, char_type c, Change const & change);
/// Output the surrogate pair formed by \p c and \p next to \p os.
/// \return the number of characters written.
int latexSurrogatePair(BufferParams const &, otexstream & os,
char_type c, char_type next,
OutputParams const &);
/// Output a space in appropriate formatting (or a surrogate pair
/// if the next character is a combining character).
/// \return whether a surrogate pair was output.
bool simpleTeXBlanks(BufferParams const &,
OutputParams const &,
otexstream &,
pos_type i,
unsigned int & column,
Font const & font,
Layout const & style);
/// This could go to ParagraphParameters if we want to.
int startTeXParParams(BufferParams const &, otexstream &,
OutputParams const &) const;
/// This could go to ParagraphParameters if we want to.
bool endTeXParParams(BufferParams const &, otexstream &,
OutputParams const &) const;
///
void latexInset(BufferParams const &,
otexstream &,
OutputParams &,
Font & running_font,
Font & basefont,
Font const & outerfont,
bool & open_font,
Change & running_change,
Layout const & style,
pos_type & i,
unsigned int & column);
///
void latexSpecialChar(
otexstream & os,
BufferParams const & bparams,
OutputParams const & runparams,
Font const & running_font,
string & alien_script,
Layout const & style,
pos_type & i,
pos_type end_pos,
unsigned int & column);
///
bool latexSpecialT1(
char_type const c,
otexstream & os,
pos_type i,
unsigned int & column);
///
bool latexSpecialTU(
char_type const c,
otexstream & os,
pos_type i,
unsigned int & column);
///
bool latexSpecialT3(
char_type const c,
otexstream & os,
pos_type i,
unsigned int & column);
///
void validate(LaTeXFeatures & features) const;
/// Checks if the paragraph contains only text and no inset or font change.
bool onlyText(Buffer const & buf, Font const & outerfont,
pos_type initial) const;
/// a vector of speller skip positions
typedef vector<FontSpan> SkipPositions;
typedef SkipPositions::const_iterator SkipPositionsIterator;
void appendSkipPosition(SkipPositions & skips, pos_type const pos) const;
Language * getSpellLanguage(pos_type const from) const;
Language * locateSpellRange(pos_type & from, pos_type & to,
SkipPositions & skips) const;
bool hasSpellerChange() const
{
SpellChecker::ChangeNumber speller_change_number = 0;
if (theSpellChecker())
speller_change_number = theSpellChecker()->changeNumber();
return speller_change_number > speller_state_.currentChangeNumber();
}
bool ignoreWord(docstring const & word) const ;
void setMisspelled(pos_type from, pos_type to, SpellChecker::Result state)
{
pos_type textsize = owner_->size();
// check for sane arguments
if (to <= from || from >= textsize)
return;
FontSpan fp = FontSpan(from, to - 1);
speller_state_.setRange(fp, state);
}
void requestSpellCheck(pos_type pos)
{
if (pos == -1)
speller_state_.needsCompleteRefresh(speller_state_.currentChangeNumber());
else
speller_state_.needsRefresh(pos);
}
void readySpellCheck()
{
speller_state_.needsRefresh(-1);
}
bool needsSpellCheck() const
{
return speller_state_.needsRefresh();
}
void rangeOfSpellCheck(pos_type & first, pos_type & last) const
{
speller_state_.refreshRange(first, last);
if (last == -1) {
last = owner_->size();
return;
}
pos_type endpos = last;
owner_->locateWord(first, endpos, WHOLE_WORD, true);
if (endpos < last) {
endpos = last;
owner_->locateWord(last, endpos, WHOLE_WORD, true);
}
last = endpos;
}
int countSkips(SkipPositionsIterator & it, SkipPositionsIterator const et,
int & start) const
{
int numskips = 0;
while (it != et && it->first < start) {
int skip = it->last - it->first + 1;
start += skip;
numskips += skip;
++it;
}
return numskips;
}
void markMisspelledWords(pos_type const & first, pos_type const & last,
SpellChecker::Result result,
docstring const & word,
SkipPositions const & skips);
InsetCode ownerCode() const
{
return inset_owner_ ? inset_owner_->lyxCode() : NO_CODE;
}
/// Which Paragraph owns us?
Paragraph * owner_;
/// In which Inset?
Inset const * inset_owner_;
///
FontList fontlist_;
///
int id_;
///
ParagraphParameters params_;
/// for recording and looking up changes
Changes changes_;
///
InsetList insetlist_;
/// end of label
pos_type begin_of_body_;
typedef docstring TextContainer;
///
TextContainer text_;
typedef set<docstring> Words;
typedef map<string, Words> LangWordsMap;
///
LangWordsMap words_;
///
Layout const * layout_;
///
SpellCheckerState speller_state_;
};
Paragraph::Private::Private(Paragraph * owner, Layout const & layout)
: owner_(owner), inset_owner_(0), id_(-1), begin_of_body_(0), layout_(&layout)
{
text_.reserve(100);
}
//static
int Paragraph::Private::make_id()
{
// The id is unique per session across buffers because it is used in
// LFUN_PARAGRAPH_GOTO to switch to a different buffer, for instance in the
// outliner.
// (thread-safe)
static atomic_uint next_id(0);
return next_id++;
}
Paragraph::Private::Private(Private const & p, Paragraph * owner)
: owner_(owner), inset_owner_(p.inset_owner_), fontlist_(p.fontlist_),
id_(make_id()),
params_(p.params_), changes_(p.changes_), insetlist_(p.insetlist_),
begin_of_body_(p.begin_of_body_), text_(p.text_), words_(p.words_),
layout_(p.layout_)
{
requestSpellCheck(p.text_.size());
}
Paragraph::Private::Private(Private const & p, Paragraph * owner,
pos_type beg, pos_type end)
: owner_(owner), inset_owner_(p.inset_owner_), id_(make_id()),
params_(p.params_), changes_(p.changes_),
insetlist_(p.insetlist_, beg, end),
begin_of_body_(p.begin_of_body_), words_(p.words_),
layout_(p.layout_)
{
if (beg >= pos_type(p.text_.size()))
return;
text_ = p.text_.substr(beg, end - beg);
FontList::const_iterator fcit = fontlist_.begin();
FontList::const_iterator fend = fontlist_.end();
for (; fcit != fend; ++fcit) {
if (fcit->pos() < beg)
continue;
if (fcit->pos() >= end) {
// Add last entry in the fontlist_.
fontlist_.set(text_.size() - 1, fcit->font());
break;
}
// Add a new entry in the fontlist_.
fontlist_.set(fcit->pos() - beg, fcit->font());
}
requestSpellCheck(p.text_.size());
}
void Paragraph::addChangesToToc(DocIterator const & cdit, Buffer const & buf,
bool output_active, TocBackend & backend) const
{
d->changes_.addToToc(cdit, buf, output_active, backend);
}
bool Paragraph::isDeleted(pos_type start, pos_type end) const
{
LASSERT(start >= 0 && start <= size(), return false);
LASSERT(end > start && end <= size() + 1, return false);
return d->changes_.isDeleted(start, end);
}
bool Paragraph::isChanged(pos_type start, pos_type end) const
{
LASSERT(start >= 0 && start <= size(), return false);
LASSERT(end > start && end <= size() + 1, return false);
return d->changes_.isChanged(start, end);
}
// FIXME: Ideally the diverse isChanged() methods should account for that!
bool Paragraph::hasChangedInsets(pos_type start, pos_type end) const
{
LASSERT(start >= 0 && start <= size(), return false);
LASSERT(end > start && end <= size() + 1, return false);
for (auto const icit : d->insetlist_) {
if (icit.pos < start)
continue;
if (icit.pos >= end)
break;
if (icit.inset && icit.inset->isChanged())
return true;
}
return false;
}
bool Paragraph::isChanged() const
{
return d->changes_.isChanged();
}
bool Paragraph::isMergedOnEndOfParDeletion(bool trackChanges) const
{
// keep the logic here in sync with the logic of eraseChars()
if (!trackChanges)
return true;
Change const & change = d->changes_.lookup(size());
return change.inserted() && change.currentAuthor();
}
Change Paragraph::parEndChange() const
{
return d->changes_.lookup(size());
}
void Paragraph::setChange(Change const & change)
{
// beware of the imaginary end-of-par character!
d->changes_.set(change, 0, size() + 1);
/*
* Propagate the change recursively - but not in case of DELETED!
*
* Imagine that your co-author makes changes in an existing inset. He
* sends your document to you and you come to the conclusion that the
* inset should go completely. If you erase it, LyX must not delete all
* text within the inset. Otherwise, the change tracked insertions of
* your co-author get lost and there is no way to restore them later.
*
* Conclusion: An inset's content should remain untouched if you delete it
*/
if (!change.deleted()) {
for (pos_type pos = 0; pos < size(); ++pos) {
if (Inset * inset = getInset(pos))
inset->setChange(change);
}
}
}
void Paragraph::setChange(pos_type pos, Change const & change)
{
LASSERT(pos >= 0 && pos <= size(), return);
d->changes_.set(change, pos);
// see comment in setChange(Change const &) above
if (!change.deleted() && pos < size())
if (Inset * inset = getInset(pos))
inset->setChange(change);
}
Change const & Paragraph::lookupChange(pos_type pos) const
{
LBUFERR(pos >= 0 && pos <= size());
return d->changes_.lookup(pos);
}
void Paragraph::acceptChanges(pos_type start, pos_type end)
{
LASSERT(start >= 0 && start <= size(), return);
LASSERT(end > start && end <= size() + 1, return);
for (pos_type pos = start; pos < end; ++pos) {
switch (lookupChange(pos).type) {
case Change::UNCHANGED:
// accept changes in nested inset
if (Inset * inset = getInset(pos))
inset->acceptChanges();
break;
case Change::INSERTED:
d->changes_.set(Change(Change::UNCHANGED), pos);
// also accept changes in nested inset
if (Inset * inset = getInset(pos))
inset->acceptChanges();
break;
case Change::DELETED:
// Suppress access to non-existent
// "end-of-paragraph char"
if (pos < size()) {
eraseChar(pos, false);
--end;
--pos;
}
break;
}
}
}
void Paragraph::rejectChanges(pos_type start, pos_type end)
{
LASSERT(start >= 0 && start <= size(), return);
LASSERT(end > start && end <= size() + 1, return);
for (pos_type pos = start; pos < end; ++pos) {
switch (lookupChange(pos).type) {
case Change::UNCHANGED:
// reject changes in nested inset
if (Inset * inset = getInset(pos))
inset->rejectChanges();
break;
case Change::INSERTED:
// Suppress access to non-existent
// "end-of-paragraph char"
if (pos < size()) {
eraseChar(pos, false);
--end;
--pos;
}
break;
case Change::DELETED:
d->changes_.set(Change(Change::UNCHANGED), pos);
// Do NOT reject changes within a deleted inset!
// There may be insertions of a co-author inside of it!
break;
}
}
}
void Paragraph::Private::insertChar(pos_type pos, char_type c,
Change const & change)
{
LASSERT(pos >= 0 && pos <= int(text_.size()), return);
// track change
changes_.insert(change, pos);
// This is actually very common when parsing buffers (and
// maybe inserting ascii text)
if (pos == pos_type(text_.size())) {
// when appending characters, no need to update tables
text_.push_back(c);
// but we want spell checking
requestSpellCheck(pos);
return;
}
text_.insert(text_.begin() + pos, c);
// Update the font table.
fontlist_.increasePosAfterPos(pos);
// Update the insets
insetlist_.increasePosAfterPos(pos);
// Update list of misspelled positions
speller_state_.increasePosAfterPos(pos);
}
bool Paragraph::insertInset(pos_type pos, Inset * inset,
Font const & font, Change const & change)
{
LASSERT(inset, return false);
LASSERT(pos >= 0 && pos <= size(), return false);
// Paragraph::insertInset() can be used in cut/copy/paste operation where
// d->inset_owner_ is not set yet.
if (d->inset_owner_ && !d->inset_owner_->insetAllowed(inset->lyxCode()))
return false;
d->insertChar(pos, META_INSET, change);
LASSERT(d->text_[pos] == META_INSET, return false);
// Add a new entry in the insetlist_.
d->insetlist_.insert(inset, pos);
// Some insets require run of spell checker
requestSpellCheck(pos);
setFont(pos, font);
return true;
}
bool Paragraph::eraseChar(pos_type pos, bool trackChanges)
{
LASSERT(pos >= 0 && pos <= size(), return false);
// keep the logic here in sync with the logic of isMergedOnEndOfParDeletion()
if (trackChanges) {
Change change = d->changes_.lookup(pos);
// set the character to DELETED if
// a) it was previously unchanged or
// b) it was inserted by a co-author
if (!change.changed() ||
(change.inserted() && !change.currentAuthor())) {
setChange(pos, Change(Change::DELETED));
// request run of spell checker
requestSpellCheck(pos);
return false;
}
if (change.deleted())
return false;
}
// Don't physically access the imaginary end-of-paragraph character.
// eraseChar() can only mark it as DELETED. A physical deletion of
// end-of-par must be handled externally.
if (pos == size()) {
return false;
}
// track change
d->changes_.erase(pos);
// if it is an inset, delete the inset entry
if (d->text_[pos] == META_INSET)
d->insetlist_.erase(pos);
d->text_.erase(d->text_.begin() + pos);
// Update the fontlist_
d->fontlist_.erase(pos);
// Update the insetlist_
d->insetlist_.decreasePosAfterPos(pos);
// Update list of misspelled positions
d->speller_state_.decreasePosAfterPos(pos);
d->speller_state_.refreshLast(size());
return true;
}
int Paragraph::eraseChars(pos_type start, pos_type end, bool trackChanges)
{
LASSERT(start >= 0 && start <= size(), return 0);
LASSERT(end >= start && end <= size() + 1, return 0);
pos_type i = start;
for (pos_type count = end - start; count; --count) {
if (!eraseChar(i, trackChanges))
++i;
}
return end - i;
}
// Handle combining characters
int Paragraph::Private::latexSurrogatePair(BufferParams const & bparams,
otexstream & os, char_type c, char_type next,
OutputParams const & runparams)
{
// Writing next here may circumvent a possible font change between
// c and next. Since next is only output if it forms a surrogate pair
// with c we can ignore this:
// A font change inside a surrogate pair does not make sense and is
// hopefully impossible to input.
// FIXME: change tracking
// Is this correct WRT change tracking?
Encoding const & encoding = *(runparams.encoding);
docstring latex1 = encoding.latexChar(next).first;
if (runparams.inIPA) {
string const tipashortcut = Encodings::TIPAShortcut(next);
if (!tipashortcut.empty()) {
latex1 = from_ascii(tipashortcut);
}
}
docstring latex2 = encoding.latexChar(c).first;
if (bparams.useNonTeXFonts || docstring(1, next) == latex1) {
// Encoding supports the combination:
// output as is (combining char after base char).
os << latex2 << latex1;
return latex1.length() + latex2.length();
}
os << latex1 << "{" << latex2 << "}";
return latex1.length() + latex2.length() + 2;
}
bool Paragraph::Private::simpleTeXBlanks(BufferParams const & bparams,
OutputParams const & runparams,
otexstream & os,
pos_type i,
unsigned int & column,
Font const & font,
Layout const & style)
{
if (style.pass_thru || runparams.pass_thru)
return false;
if (i + 1 < int(text_.size())) {
char_type next = text_[i + 1];
if (Encodings::isCombiningChar(next)) {
// This space has an accent, so we must always output it.
column += latexSurrogatePair(bparams, os, ' ', next, runparams) - 1;
return true;
}
}
if (runparams.linelen > 0
&& column > runparams.linelen
&& i
&& text_[i - 1] != ' '
&& (i + 1 < int(text_.size()))
// same in FreeSpacing mode
&& !owner_->isFreeSpacing()
// In typewriter mode, we want to avoid
// ! . ? : at the end of a line
&& !(font.fontInfo().family() == TYPEWRITER_FAMILY
&& (text_[i - 1] == '.'
|| text_[i - 1] == '?'
|| text_[i - 1] == ':'
|| text_[i - 1] == '!'))) {
os << '\n';
os.texrow().start(owner_->id(), i + 1);
column = 0;
} else if (style.free_spacing) {
os << '~';
} else {
os << ' ';
}
return false;
}
void Paragraph::Private::latexInset(BufferParams const & bparams,
otexstream & os,
OutputParams & runparams,
Font & running_font,
Font & basefont,
Font const & outerfont,
bool & open_font,
Change & running_change,
Layout const & style,
pos_type & i,
unsigned int & column)
{
Inset * inset = owner_->getInset(i);
LBUFERR(inset);
if (style.pass_thru) {
odocstringstream ods;
inset->plaintext(ods, runparams);
os << ods.str();
return;
}
// FIXME: move this to InsetNewline::latex
if (inset->lyxCode() == NEWLINE_CODE || inset->lyxCode() == SEPARATOR_CODE) {
// newlines are handled differently here than
// the default in simpleTeXSpecialChars().
if (!style.newline_allowed) {
os << '\n';
} else {
if (open_font) {
bool needPar = false;
column += running_font.latexWriteEndChanges(
os, bparams, runparams,
basefont, basefont, needPar);
open_font = false;
}
if (running_font.fontInfo().family() == TYPEWRITER_FAMILY)
os << '~';
basefont = owner_->getLayoutFont(bparams, outerfont);
running_font = basefont;
if (runparams.moving_arg)
os << "\\protect ";
}
os.texrow().start(owner_->id(), i + 1);
column = 0;
}
if (owner_->isDeleted(i)) {
if( ++runparams.inDeletedInset == 1)
runparams.changeOfDeletedInset = owner_->lookupChange(i);
}
if (inset->canTrackChanges()) {
column += Changes::latexMarkChange(os, bparams, running_change,
Change(Change::UNCHANGED), runparams);
running_change = Change(Change::UNCHANGED);
}
bool close = false;
odocstream::pos_type const len = os.os().tellp();
if (inset->forceLTR(runparams)
&& running_font.isRightToLeft()
// ERT is an exception, it should be output with no
// decorations at all
&& inset->lyxCode() != ERT_CODE) {
if (runparams.use_polyglossia) {
os << "\\LRE{";
} else if (running_font.language()->lang() == "farsi"
|| running_font.language()->lang() == "arabic_arabi")
os << "\\textLR{" << termcmd;
else
os << "\\L{";
close = true;
}
// FIXME: Bug: we can have an empty font change here!
// if there has just been a font change, we are going to close it
// right now, which means stupid latex code like \textsf{}. AFAIK,
// this does not harm dvi output. A minor bug, thus (JMarc)
// Some insets cannot be inside a font change command.
// However, even such insets *can* be placed in \L or \R
// or their equivalents (for RTL language switches), so we don't
// close the language in those cases.
// ArabTeX, though, cannot handle this special behavior, it seems.
bool arabtex = basefont.language()->lang() == "arabic_arabtex"
|| running_font.language()->lang() == "arabic_arabtex";
if (open_font && !inset->inheritFont()) {
bool needPar = false;
bool closeLanguage = arabtex
|| basefont.isRightToLeft() == running_font.isRightToLeft();
unsigned int count = running_font.latexWriteEndChanges(os,
bparams, runparams, basefont, basefont,
needPar, closeLanguage);
column += count;
// if any font properties were closed, update the running_font,
// making sure, however, to leave the language as it was
if (count > 0) {
// FIXME: probably a better way to keep track of the old
// language, than copying the entire font?
Font const copy_font(running_font);
basefont = owner_->getLayoutFont(bparams, outerfont);
running_font = basefont;
if (!closeLanguage)
running_font.setLanguage(copy_font.language());
// leave font open if language is still open
open_font = (running_font.language() == basefont.language());
if (closeLanguage)
runparams.local_font = &basefont;
}
}
size_t const previous_row_count = os.texrow().rows();
try {
runparams.lastid = id_;
runparams.lastpos = i;
inset->latex(os, runparams);
} catch (EncodingException & e) {
// add location information and throw again.
e.par_id = id_;
e.pos = i;
throw(e);
}
if (close)
os << '}';
if (os.texrow().rows() > previous_row_count) {
os.texrow().start(owner_->id(), i + 1);
column = 0;
} else {
column += (unsigned int)(os.os().tellp() - len);
}
if (owner_->isDeleted(i))
--runparams.inDeletedInset;
}
void Paragraph::Private::latexSpecialChar(otexstream & os,
BufferParams const & bparams,
OutputParams const & runparams,
Font const & running_font,
string & alien_script,
Layout const & style,
pos_type & i,
pos_type end_pos,
unsigned int & column)
{
char_type const c = owner_->getUChar(bparams, runparams, i);
if (style.pass_thru || runparams.pass_thru
|| contains(style.pass_thru_chars, c)
|| contains(runparams.pass_thru_chars, c)) {
if (c != '\0') {
Encoding const * const enc = runparams.encoding;
if (enc && !enc->encodable(c))
throw EncodingException(c);
os.put(c);
}
return;
}
// TIPA uses its own T3 encoding
if (runparams.inIPA && latexSpecialT3(c, os, i, column))
return;
// If T1 font encoding is used, use the special
// characters it provides.
// NOTE: Some languages reset the font encoding internally to a
// non-standard font encoding. If we are using such a language,
// we do not output special T1 chars.
if (!runparams.inIPA && !running_font.language()->internalFontEncoding()
&& !runparams.isFullUnicode() && bparams.main_font_encoding() == "T1"
&& latexSpecialT1(c, os, i, column))
return;
// NOTE: "fontspec" (non-TeX fonts) sets the font encoding to "TU" (untill 2017 "EU1" or "EU2")
else if (!runparams.inIPA && !running_font.language()->internalFontEncoding()
&& runparams.isFullUnicode() && latexSpecialTU(c, os, i, column))
return;
// Otherwise, we use what LaTeX provides us.
switch (c) {
case '\\':
os << "\\textbackslash" << termcmd;
column += 15;
break;
case '<':
os << "\\textless" << termcmd;
column += 10;
break;
case '>':
os << "\\textgreater" << termcmd;
column += 13;
break;
case '|':
os << "\\textbar" << termcmd;
column += 9;
break;
case '-':
os << '-';
if (i + 1 < static_cast<pos_type>(text_.size()) &&
(end_pos == -1 || i + 1 < end_pos) &&
text_[i+1] == '-') {
// Prevent "--" becoming an en dash and "---" an em dash.
// (Within \ttfamily, "---" is merged to en dash + hyphen.)
os << "{}";
column += 2;
}
break;
case '\"':
os << "\\textquotedbl" << termcmd;
column += 14;
break;
case '$': case '&':
case '%': case '#': case '{':
case '}': case '_':
os << '\\';
os.put(c);
column += 1;
break;
case '~':
os << "\\textasciitilde" << termcmd;
column += 16;
break;
case '^':
os << "\\textasciicircum" << termcmd;
column += 17;
break;
case '*':
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;
case 0x2013:
case 0x2014:
// XeTeX's dash behaviour is determined via a global setting
if (bparams.use_dash_ligatures
&& owner_->getFontSettings(bparams, i).fontInfo().family() != TYPEWRITER_FAMILY
&& !runparams.inIPA
// TODO #10961: && not in inset Flex Code
// TODO #10961: && not in layout LyXCode
&& (!bparams.useNonTeXFonts || runparams.flavor != OutputParams::XETEX)) {
if (c == 0x2013) {
// en-dash
os << "--";
column +=2;
} else {
// em-dash
os << "---";
column +=3;
}
break;
}
// fall through
default:
if (c == '\0')
return;
Encoding const & encoding = *(runparams.encoding);
char_type next = '\0';
if (i + 1 < int(text_.size())) {
next = text_[i + 1];
if (Encodings::isCombiningChar(next)) {
column += latexSurrogatePair(bparams, os, c, next, runparams) - 1;
++i;
break;
}
}
pair<docstring, bool> latex = encoding.latexChar(c);
docstring nextlatex;
bool nexttipas = false;
string nexttipashortcut;
if (next != '\0' && next != META_INSET && !encoding.encodable(next)) {
nextlatex = encoding.latexChar(next).first;
if (runparams.inIPA) {
nexttipashortcut = Encodings::TIPAShortcut(next);
nexttipas = !nexttipashortcut.empty();
}
}
bool tipas = false;
if (runparams.inIPA) {
string const tipashortcut = Encodings::TIPAShortcut(c);
if (!tipashortcut.empty()) {
latex.first = from_ascii(tipashortcut);
latex.second = false;
tipas = true;
}
}
// eventually close "script wrapper" command (see `Paragraph::latex`)
if (!alien_script.empty()
&& alien_script != Encodings::isKnownScriptChar(next)) {
column += latex.first.length();
alien_script.clear();
os << latex.first << "}";
break;
}
if (latex.second
&& ((!prefixIs(nextlatex, '\\')
&& !prefixIs(nextlatex, '{')
&& !prefixIs(nextlatex, '}'))
|| (nexttipas
&& !prefixIs(from_ascii(nexttipashortcut), '\\')))
&& !tipas) {
// Prevent eating of a following space or command corruption by
// following characters
if (next == ' ' || next == '\0') {
column += latex.first.length() + 1;
os << latex.first << "{}";
} else {
column += latex.first.length();
os << latex.first << " ";
}
} else {
column += latex.first.length() - 1;
os << latex.first;
}
break;
}
}
bool Paragraph::Private::latexSpecialT1(char_type const c, otexstream & os,
pos_type i, unsigned int & column)
{
switch (c) {
case '>':
case '<':
os.put(c);
// In T1 encoding, these characters exist
// but we should avoid ligatures
if (i + 1 >= int(text_.size()) || text_[i + 1] != c)
return true;
os << "\\textcompwordmark" << termcmd;
column += 19;
return true;
case '|':
os.put(c);
return true;
case '\"':
// soul.sty breaks with \char`\"
os << "\\textquotedbl" << termcmd;
column += 14;
return true;
default:
return false;
}
}
bool Paragraph::Private::latexSpecialTU(char_type const c, otexstream & os,
pos_type i, unsigned int & column)
{
// TU encoding is currently on par with T1.
return latexSpecialT1(c, os, i, column);
}
bool Paragraph::Private::latexSpecialT3(char_type const c, otexstream & os,
pos_type /*i*/, unsigned int & column)
{
switch (c) {
case '*':
case '[':
case ']':
case '\"':
os.put(c);
return true;
case '|':
os << "\\textvertline" << termcmd;
column += 14;
return true;
default:
return false;
}
}
void Paragraph::Private::validate(LaTeXFeatures & features) const
{
if (layout_->inpreamble && inset_owner_) {
// FIXME: Using a string stream here circumvents the encoding
// switching machinery of odocstream. Therefore the
// output is wrong if this paragraph contains content
// that needs to switch encoding.
Buffer const & buf = inset_owner_->buffer();
otexstringstream os;
os << layout_->preamble();
size_t const length = os.length();
TeXOnePar(buf, *inset_owner_->getText(int(buf.getParFromID(owner_->id()).idx())),
buf.getParFromID(owner_->id()).pit(), os,
features.runparams(), string(), 0, -1, true);
if (os.length() > length)
features.addPreambleSnippet(os.release(), true);
}
if (features.runparams().flavor == OutputParams::HTML
&& layout_->htmltitle()) {
features.setHTMLTitle(owner_->asString(AS_STR_INSETS | AS_STR_SKIPDELETE));
}
// check the params.
if (!params_.spacing().isDefault())
features.require("setspace");
// then the layouts
features.useLayout(layout_->name());
// then the fonts
fontlist_.validate(features);
// then the indentation
if (!params_.leftIndent().zero())
features.require("ParagraphLeftIndent");
// then the insets
InsetList::const_iterator icit = insetlist_.begin();
InsetList::const_iterator iend = insetlist_.end();
for (; icit != iend; ++icit) {
if (icit->inset) {
features.inDeletedInset(owner_->isDeleted(icit->pos));
if (icit->inset->lyxCode() == FOOT_CODE) {
// FIXME: an item inset would make things much easier.
if ((layout_->latextype == LATEX_LIST_ENVIRONMENT
|| (layout_->latextype == LATEX_ITEM_ENVIRONMENT
&& layout_->margintype == MARGIN_FIRST_DYNAMIC))
&& (icit->pos < begin_of_body_
|| (icit->pos == begin_of_body_
&& (icit->pos == 0 || text_[icit->pos - 1] != ' '))))
features.saveNoteEnv("description");
}
icit->inset->validate(features);
features.inDeletedInset(false);
if (layout_->needprotect &&
icit->inset->lyxCode() == FOOT_CODE)
features.require("NeedLyXFootnoteCode");
}
}
// then the contents
BufferParams const bp = features.runparams().is_child
? features.buffer().masterParams() : features.buffer().params();
for (pos_type i = 0; i < int(text_.size()) ; ++i) {
char_type c = text_[i];
CharInfo const & ci = Encodings::unicodeCharInfo(c);
if (c == 0x0022) {
if (features.runparams().isFullUnicode() && bp.useNonTeXFonts)
features.require("textquotedblp");
else if (bp.main_font_encoding() != "T1"
|| ((&owner_->getFontSettings(bp, i))->language()->internalFontEncoding()))
features.require("textquotedbl");
} else if (ci.textfeature() && contains(ci.textpreamble(), '=')) {
// features that depend on the font or input encoding
string feats = ci.textpreamble();
string fontenc = (&owner_->getFontSettings(bp, i))->language()->fontenc(bp);
if (fontenc.empty())
fontenc = features.runparams().main_fontenc;
while (!feats.empty()) {
string feat;
feats = split(feats, feat, ',');
if (contains(feat, "!=")) {
// a feature that is required except for the spcified
// font or input encodings
string realfeature;
string const contexts = ltrim(split(feat, realfeature, '!'), "=");
// multiple encodings are separated by semicolon
vector<string> context = getVectorFromString(contexts, ";");
// require feature if the context matches neither current font
// nor input encoding
if (std::find(context.begin(), context.end(), fontenc) == context.end()
&& std::find(context.begin(), context.end(),
features.runparams().encoding->name()) == context.end())
features.require(realfeature);
} else if (contains(feat, '=')) {
// a feature that is required only for the spcified
// font or input encodings
string realfeature;
string const contexts = split(feat, realfeature, '=');
// multiple encodings are separated by semicolon
vector<string> context = getVectorFromString(contexts, ";");
// require feature if the context matches either current font
// or input encoding
if (std::find(context.begin(), context.end(), fontenc) != context.end()
|| std::find(context.begin(), context.end(),
features.runparams().encoding->name()) != context.end())
features.require(realfeature);
}
}
} else if (!bp.use_dash_ligatures
&& (c == 0x2013 || c == 0x2014)
&& bp.useNonTeXFonts
&& features.runparams().flavor == OutputParams::XETEX)
// XeTeX's dash behaviour is determined via a global setting
features.require("xetexdashbreakstate");
BufferEncodings::validate(c, features);
}
}
/////////////////////////////////////////////////////////////////////
//
// Paragraph
//
/////////////////////////////////////////////////////////////////////
namespace {
Layout const emptyParagraphLayout;
}
Paragraph::Paragraph()
: d(new Paragraph::Private(this, emptyParagraphLayout))
{
itemdepth = 0;
d->params_.clear();
}
Paragraph::Paragraph(Paragraph const & par)
: itemdepth(par.itemdepth),
d(new Paragraph::Private(*par.d, this))
{
registerWords();
}
Paragraph::Paragraph(Paragraph const & par, pos_type beg, pos_type end)
: itemdepth(par.itemdepth),
d(new Paragraph::Private(*par.d, this, beg, end))
{
registerWords();
}
Paragraph & Paragraph::operator=(Paragraph const & par)
{
// needed as we will destroy the private part before copying it
if (&par != this) {
itemdepth = par.itemdepth;
deregisterWords();
delete d;
d = new Private(*par.d, this);
registerWords();
}
return *this;
}
Paragraph::~Paragraph()
{
deregisterWords();
delete d;
}
namespace {
// this shall be called just before every "os << ..." action.
void flushString(ostream & os, docstring & s)
{
os << to_utf8(s);
s.erase();
}
} // namespace
void Paragraph::write(ostream & os, BufferParams const & bparams,
depth_type & dth) const
{
// The beginning or end of a deeper (i.e. nested) area?
if (dth != d->params_.depth()) {
if (d->params_.depth() > dth) {
while (d->params_.depth() > dth) {
os << "\n\\begin_deeper";
++dth;
}
} else {
while (d->params_.depth() < dth) {
os << "\n\\end_deeper";
--dth;
}
}
}
// First write the layout
os << "\n\\begin_layout " << to_utf8(d->layout_->name()) << '\n';
d->params_.write(os);
Font font1(inherit_font, bparams.language);
Change running_change = Change(Change::UNCHANGED);
// this string is used as a buffer to avoid repetitive calls
// to to_utf8(), which turn out to be expensive (JMarc)
docstring write_buffer;
int column = 0;
for (pos_type i = 0; i <= size(); ++i) {
Change const & change = lookupChange(i);
if (change != running_change)
flushString(os, write_buffer);
Changes::lyxMarkChange(os, bparams, column, running_change, change);
running_change = change;
if (i == size())
break;
// Write font changes
Font font2 = getFontSettings(bparams, i);
if (font2 != font1) {
flushString(os, write_buffer);
font2.lyxWriteChanges(font1, os);
column = 0;
font1 = font2;
}
char_type const c = d->text_[i];
switch (c) {
case META_INSET:
if (Inset const * inset = getInset(i)) {
flushString(os, write_buffer);
if (inset->directWrite()) {
// international char, let it write
// code directly so it's shorter in
// the file
inset->write(os);
} else {
if (i)
os << '\n';
os << "\\begin_inset ";
inset->write(os);
os << "\n\\end_inset\n\n";
column = 0;
}
// FIXME This can be removed again once the mystery
// crash has been resolved.
os << flush;
}
break;
case '\\':
flushString(os, write_buffer);
os << "\n\\backslash\n";
column = 0;
break;
case '.':
flushString(os, write_buffer);
if (i + 1 < size() && d->text_[i + 1] == ' ') {
os << ".\n";
column = 0;
} else
os << '.';
break;
default:
if ((column > 70 && c == ' ')
|| column > 79) {
flushString(os, write_buffer);
os << '\n';
column = 0;
}
// this check is to amend a bug. LyX sometimes
// inserts '\0' this could cause problems.
if (c != '\0')
write_buffer.push_back(c);
else
LYXERR0("NUL char in structure.");
++column;
break;
}
}
flushString(os, write_buffer);
os << "\n\\end_layout\n";
// FIXME This can be removed again once the mystery
// crash has been resolved.
os << flush;
}
void Paragraph::validate(LaTeXFeatures & features) const
{
d->validate(features);
bool fragile = features.runparams().moving_arg;
fragile |= layout().needprotect;
if (inInset().getLayout().isNeedProtect())
fragile = true;
if (needsCProtection(fragile))
features.require("cprotect");
}
void Paragraph::insert(pos_type start, docstring const & str,
Font const & font, Change const & change)
{
for (size_t i = 0, n = str.size(); i != n ; ++i)
insertChar(start + i, str[i], font, change);
}
void Paragraph::appendChar(char_type c, Font const & font,
Change const & change)
{
// track change
d->changes_.insert(change, d->text_.size());
// when appending characters, no need to update tables
d->text_.push_back(c);
setFont(d->text_.size() - 1, font);
d->requestSpellCheck(d->text_.size() - 1);
}
void Paragraph::appendString(docstring const & s, Font const & font,
Change const & change)
{
pos_type end = s.size();
size_t oldsize = d->text_.size();
size_t newsize = oldsize + end;
size_t capacity = d->text_.capacity();
if (newsize >= capacity)
d->text_.reserve(max(capacity + 100, newsize));
// when appending characters, no need to update tables
d->text_.append(s);
// FIXME: Optimize this!
for (size_t i = oldsize; i != newsize; ++i) {
// track change
d->changes_.insert(change, i);
d->requestSpellCheck(i);
}
d->fontlist_.set(oldsize, font);
d->fontlist_.set(newsize - 1, font);
}
void Paragraph::insertChar(pos_type pos, char_type c,
bool trackChanges)
{
d->insertChar(pos, c, Change(trackChanges ?
Change::INSERTED : Change::UNCHANGED));
}
void Paragraph::insertChar(pos_type pos, char_type c,
Font const & font, bool trackChanges)
{
d->insertChar(pos, c, Change(trackChanges ?
Change::INSERTED : Change::UNCHANGED));
setFont(pos, font);
}
void Paragraph::insertChar(pos_type pos, char_type c,
Font const & font, Change const & change)
{
d->insertChar(pos, c, change);
setFont(pos, font);
}
void Paragraph::resetFonts(Font const & font)
{
d->fontlist_.clear();
d->fontlist_.set(0, font);
d->fontlist_.set(d->text_.size() - 1, font);
}
// Gets uninstantiated font setting at position.
Font const & Paragraph::getFontSettings(BufferParams const & bparams,
pos_type pos) const
{
if (pos > size()) {
LYXERR0("pos: " << pos << " size: " << size());
LBUFERR(false);
}
FontList::const_iterator cit = d->fontlist_.fontIterator(pos);
if (cit != d->fontlist_.end())
return cit->font();
if (pos == size() && !empty())
return getFontSettings(bparams, pos - 1);
// Optimisation: avoid a full font instantiation if there is no
// language change from previous call.
static Font previous_font;
static Language const * previous_lang = 0;
Language const * lang = getParLanguage(bparams);
if (lang != previous_lang) {
previous_lang = lang;
previous_font = Font(inherit_font, lang);
}
return previous_font;
}
FontSpan Paragraph::fontSpan(pos_type pos) const
{
LBUFERR(pos <= size());
if (pos == size())
return FontSpan(pos, pos);
pos_type start = 0;
FontList::const_iterator cit = d->fontlist_.begin();
FontList::const_iterator end = d->fontlist_.end();
for (; cit != end; ++cit) {
if (cit->pos() >= pos) {
if (pos >= beginOfBody())
return FontSpan(max(start, beginOfBody()),
cit->pos());
else
return FontSpan(start,
min(beginOfBody() - 1,
cit->pos()));
}
start = cit->pos() + 1;
}
// This should not happen, but if so, we take no chances.
LYXERR0("Paragraph::fontSpan: position not found in fontinfo table!");
LASSERT(false, return FontSpan(pos, pos));
}
// Gets uninstantiated font setting at position 0
Font const & Paragraph::getFirstFontSettings(BufferParams const & bparams) const
{
if (!empty() && !d->fontlist_.empty())
return d->fontlist_.begin()->font();
// Optimisation: avoid a full font instantiation if there is no
// language change from previous call.
static Font previous_font;
static Language const * previous_lang = 0;
if (bparams.language != previous_lang) {
previous_lang = bparams.language;
previous_font = Font(inherit_font, bparams.language);
}
return previous_font;
}
// Gets the fully instantiated font at a given position in a paragraph
// This is basically the same function as Text::GetFont() in text2.cpp.
// The difference is that this one is used for generating the LaTeX file,
// and thus cosmetic "improvements" are disallowed: This has to deliver
// the true picture of the buffer. (Asger)
Font const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
Font const & outerfont) const
{
LBUFERR(pos >= 0);
Font font = getFontSettings(bparams, pos);
pos_type const body_pos = beginOfBody();
FontInfo & fi = font.fontInfo();
if (pos < body_pos)
fi.realize(d->layout_->labelfont);
else
fi.realize(d->layout_->font);
fi.realize(outerfont.fontInfo());
fi.realize(bparams.getFont().fontInfo());
return font;
}
Font const Paragraph::getLabelFont
(BufferParams const & bparams, Font const & outerfont) const
{
FontInfo tmpfont = d->layout_->labelfont;
tmpfont.realize(outerfont.fontInfo());
tmpfont.realize(bparams.getFont().fontInfo());
return Font(tmpfont, getParLanguage(bparams));
}
Font const Paragraph::getLayoutFont
(BufferParams const & bparams, Font const & outerfont) const
{
FontInfo tmpfont = d->layout_->font;
tmpfont.realize(outerfont.fontInfo());
tmpfont.realize(bparams.getFont().fontInfo());
return Font(tmpfont, getParLanguage(bparams));
}
char_type Paragraph::getUChar(BufferParams const & bparams,
OutputParams const & rp,
pos_type pos) const
{
char_type c = d->text_[pos];
// Return unchanged character in LTR languages
// or if we use poylglossia/bidi (XeTeX).
if (rp.useBidiPackage()
|| !getFontSettings(bparams, pos).isRightToLeft())
return c;
// Without polyglossia/bidi, we need to account for some special cases.
// FIXME This needs to be audited!
// Check if:
// * The input is as expected for all delimiters
// => checked for Hebrew!
// * The output matches the display in the LyX workarea
// => checked for Hebrew!
// * The special cases below are really necessary
// => checked for Hebrew!
// * In arabic_arabi, brackets are transformed to Arabic
// Ornate Parentheses. Is this is really wanted?
string const & lang = getFontSettings(bparams, pos).language()->lang();
char_type uc = c;
// 1. In the following languages, parentheses need to be reversed.
// Also with polyglodia/luabidi
bool const reverseparens = (lang == "hebrew" || rp.use_polyglossia);
// 2. In the following languages, brackets don't need to be reversed.
bool const reversebrackets = lang != "arabic_arabtex"
&& lang != "arabic_arabi"
&& lang != "farsi";
// Now swap delimiters if needed.
switch (c) {
case '(':
if (reverseparens)
uc = ')';
break;
case ')':
if (reverseparens)
uc = '(';
break;
case '[':
if (reversebrackets)
uc = ']';
break;
case ']':
if (reversebrackets)
uc = '[';
break;
case '{':
uc = '}';
break;
case '}':
uc = '{';
break;
case '<':
uc = '>';
break;
case '>':
uc = '<';
break;
}
return uc;
}
void Paragraph::setFont(pos_type pos, Font const & font)
{
LASSERT(pos <= size(), return);
// First, reduce font against layout/label font
// Update: The setCharFont() routine in text2.cpp already
// reduces font, so we don't need to do that here. (Asger)
d->fontlist_.set(pos, font);
}
void Paragraph::makeSameLayout(Paragraph const & par)
{
d->layout_ = par.d->layout_;
d->params_ = par.d->params_;
}
bool Paragraph::stripLeadingSpaces(bool trackChanges)
{
if (isFreeSpacing())
return false;
int pos = 0;
int count = 0;
while (pos < size() && (isNewline(pos) || isLineSeparator(pos))) {
if (eraseChar(pos, trackChanges))
++count;
else
++pos;
}
return count > 0 || pos > 0;
}
bool Paragraph::hasSameLayout(Paragraph const & par) const
{
return par.d->layout_ == d->layout_
&& d->params_.sameLayout(par.d->params_);
}
depth_type Paragraph::getDepth() const
{
return d->params_.depth();
}
depth_type Paragraph::getMaxDepthAfter() const
{
if (d->layout_->isEnvironment())
return d->params_.depth() + 1;
else
return d->params_.depth();
}
LyXAlignment Paragraph::getAlign(BufferParams const & bparams) const
{
if (d->params_.align() == LYX_ALIGN_LAYOUT)
return getDefaultAlign(bparams);
else
return d->params_.align();
}
LyXAlignment Paragraph::getDefaultAlign(BufferParams const & bparams) const
{
LyXAlignment res = layout().align;
if (isRTL(bparams)) {
// Swap sides
if (res == LYX_ALIGN_LEFT)
res = LYX_ALIGN_RIGHT;
else if (res == LYX_ALIGN_RIGHT)
res = LYX_ALIGN_LEFT;
}
return res;
}
docstring const & Paragraph::labelString() const
{
return d->params_.labelString();
}
// the next two functions are for the manual labels
docstring const Paragraph::getLabelWidthString() const
{
if (d->layout_->margintype == MARGIN_MANUAL
|| d->layout_->latextype == LATEX_BIB_ENVIRONMENT)
return d->params_.labelWidthString();
else
return _("Senseless with this layout!");
}
void Paragraph::setLabelWidthString(docstring const & s)
{
d->params_.labelWidthString(s);
}
docstring Paragraph::expandLabel(Layout const & layout,
BufferParams const & bparams) const
{
return expandParagraphLabel(layout, bparams, true);
}
docstring Paragraph::expandDocBookLabel(Layout const & layout,
BufferParams const & bparams) const
{
return expandParagraphLabel(layout, bparams, false);
}
docstring Paragraph::expandParagraphLabel(Layout const & layout,
BufferParams const & bparams, bool process_appendix) const
{
DocumentClass const & tclass = bparams.documentClass();
string const & lang = getParLanguage(bparams)->code();
bool const in_appendix = process_appendix && d->params_.appendix();
docstring fmt = translateIfPossible(layout.labelstring(in_appendix), lang);
if (fmt.empty() && !layout.counter.empty())
return tclass.counters().theCounter(layout.counter, lang);
// handle 'inherited level parts' in 'fmt',
// i.e. the stuff between '@' in '@Section@.\arabic{subsection}'
size_t const i = fmt.find('@', 0);
if (i != docstring::npos) {
size_t const j = fmt.find('@', i + 1);
if (j != docstring::npos) {
docstring parent(fmt, i + 1, j - i - 1);
docstring label = from_ascii("??");
if (tclass.hasLayout(parent))
label = expandParagraphLabel(tclass[parent], bparams,
process_appendix);
fmt = docstring(fmt, 0, i) + label
+ docstring(fmt, j + 1, docstring::npos);
}
}
return tclass.counters().counterLabel(fmt, lang);
}
void Paragraph::applyLayout(Layout const & new_layout)
{
d->layout_ = &new_layout;
LyXAlignment const oldAlign = d->params_.align();
if (!(oldAlign & d->layout_->alignpossible)) {
frontend::Alert::warning(_("Alignment not permitted"),
_("The new layout does not permit the alignment previously used.\nSetting to default."));
d->params_.align(LYX_ALIGN_LAYOUT);
}
}
pos_type Paragraph::beginOfBody() const
{
return d->begin_of_body_;
}
void Paragraph::setBeginOfBody()
{
if (d->layout_->labeltype != LABEL_MANUAL) {
d->begin_of_body_ = 0;
return;
}
// Unroll the first two cycles of the loop
// and remember the previous character to
// remove unnecessary getChar() calls
pos_type i = 0;
pos_type end = size();
bool prev_char_deleted = false;
if (i < end && (!(isNewline(i) || isEnvSeparator(i)) || isDeleted(i))) {
++i;
if (i < end) {
char_type previous_char = d->text_[i];
if (!(isNewline(i) || isEnvSeparator(i))) {
++i;
while (i < end && (previous_char != ' ' || prev_char_deleted)) {
char_type temp = d->text_[i];
prev_char_deleted = isDeleted(i);
if (!isDeleted(i) && (isNewline(i) || isEnvSeparator(i)))
break;
++i;
previous_char = temp;
}
}
}
}
d->begin_of_body_ = i;
}
bool Paragraph::allowParagraphCustomization() const
{
return inInset().allowParagraphCustomization();
}
bool Paragraph::usePlainLayout() const
{
return inInset().usePlainLayout();
}
bool Paragraph::isPassThru() const
{
return inInset().isPassThru() || d->layout_->pass_thru;
}
namespace {
// paragraphs inside floats need different alignment tags to avoid
// unwanted space
bool noTrivlistCentering(InsetCode code)
{
return code == FLOAT_CODE
|| code == WRAP_CODE
|| code == CELL_CODE;
}
string correction(string const & orig)
{
if (orig == "flushleft")
return "raggedright";
if (orig == "flushright")
return "raggedleft";
if (orig == "center")
return "centering";
return orig;
}
bool corrected_env(otexstream & os, string const & suffix, string const & env,
InsetCode code, bool const lastpar, int & col)
{
string macro = suffix + "{";
if (noTrivlistCentering(code)) {
if (lastpar) {
// the last paragraph in non-trivlist-aligned
// context is special (to avoid unwanted whitespace)
if (suffix == "\\begin") {
macro = "\\" + correction(env) + "{}";
os << from_ascii(macro);
col += macro.size();
return true;
}
return false;
}
macro += correction(env);
} else
macro += env;
macro += "}";
if (suffix == "\\par\\end") {
os << breakln;
col = 0;
}
os << from_ascii(macro);
col += macro.size();
if (suffix == "\\begin") {
os << breakln;
col = 0;
}
return true;
}
} // namespace
int Paragraph::Private::startTeXParParams(BufferParams const & bparams,
otexstream & os, OutputParams const & runparams) const
{
int column = 0;
bool canindent =
(bparams.paragraph_separation == BufferParams::ParagraphIndentSeparation) ?
(layout_->toggle_indent != ITOGGLE_NEVER) :
(layout_->toggle_indent == ITOGGLE_ALWAYS);
if (canindent && params_.noindent() && !layout_->pass_thru) {
os << "\\noindent ";
column += 10;
}
LyXAlignment const curAlign = params_.align();
if (curAlign == layout_->align)
return column;
switch (curAlign) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
case LYX_ALIGN_DECIMAL:
break;
case LYX_ALIGN_LEFT:
case LYX_ALIGN_RIGHT:
case LYX_ALIGN_CENTER:
if (runparams.moving_arg) {
os << "\\protect";
column += 8;
}
break;
}
string const begin_tag = "\\begin";
InsetCode code = ownerCode();
bool const lastpar = runparams.isLastPar;
// RTL in classic (PDF)LaTeX (without the Bidi package)
// Luabibdi (used by LuaTeX) behaves like classic
bool const rtl_classic = owner_->getParLanguage(bparams)->rightToLeft()
&& !runparams.useBidiPackage();
switch (curAlign) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
case LYX_ALIGN_DECIMAL:
break;
case LYX_ALIGN_LEFT: {
if (rtl_classic)
// Classic (PDF)LaTeX switches the left/right logic in RTL mode
corrected_env(os, begin_tag, "flushright", code, lastpar, column);
else
corrected_env(os, begin_tag, "flushleft", code, lastpar, column);
break;
} case LYX_ALIGN_RIGHT: {
if (rtl_classic)
// Classic (PDF)LaTeX switches the left/right logic in RTL mode
corrected_env(os, begin_tag, "flushleft", code, lastpar, column);
else
corrected_env(os, begin_tag, "flushright", code, lastpar, column);
break;
} case LYX_ALIGN_CENTER: {
corrected_env(os, begin_tag, "center", code, lastpar, column);
break;
}
}
return column;
}
bool Paragraph::Private::endTeXParParams(BufferParams const & bparams,
otexstream & os, OutputParams const & runparams) const
{
LyXAlignment const curAlign = params_.align();
if (curAlign == layout_->align)
return false;
switch (curAlign) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
case LYX_ALIGN_DECIMAL:
break;
case LYX_ALIGN_LEFT:
case LYX_ALIGN_RIGHT:
case LYX_ALIGN_CENTER:
if (runparams.moving_arg)
os << "\\protect";
break;
}
bool output = false;
int col = 0;
string const end_tag = "\\par\\end";
InsetCode code = ownerCode();
bool const lastpar = runparams.isLastPar;
// RTL in classic (PDF)LaTeX (without the Bidi package)
// Luabibdi (used by LuaTeX) behaves like classic
bool const rtl_classic = owner_->getParLanguage(bparams)->rightToLeft()
&& !runparams.useBidiPackage();
switch (curAlign) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
case LYX_ALIGN_DECIMAL:
break;
case LYX_ALIGN_LEFT: {
if (rtl_classic)
// Classic (PDF)LaTeX switches the left/right logic in RTL mode
output = corrected_env(os, end_tag, "flushright", code, lastpar, col);
else
output = corrected_env(os, end_tag, "flushleft", code, lastpar, col);
break;
} case LYX_ALIGN_RIGHT: {
if (rtl_classic)
// Classic (PDF)LaTeX switches the left/right logic in RTL mode
output = corrected_env(os, end_tag, "flushleft", code, lastpar, col);
else
output = corrected_env(os, end_tag, "flushright", code, lastpar, col);
break;
} case LYX_ALIGN_CENTER: {
corrected_env(os, end_tag, "center", code, lastpar, col);
break;
}
}
return output || lastpar;
}
// This one spits out the text of the paragraph
void Paragraph::latex(BufferParams const & bparams,
Font const & outerfont,
otexstream & os,
OutputParams const & runparams,
int start_pos, int end_pos, bool force) const
{
LYXERR(Debug::LATEX, "Paragraph::latex... " << this);
// FIXME This check should not be needed. Perhaps issue an
// error if it triggers.
Layout const & style = inInset().forcePlainLayout() ?
bparams.documentClass().plainLayout() : *d->layout_;
if (!force && style.inpreamble)
return;
bool const allowcust = allowParagraphCustomization();
// Current base font for all inherited font changes, without any
// change caused by an individual character, except for the language:
// It is set to the language of the first character.
// As long as we are in the label, this font is the base font of the
// label. Before the first body character it is set to the base font
// of the body.
Font basefont;
// If there is an open font-encoding changing command (script wrapper),
// alien_script is set to its name
string alien_script;
string script;
// Maybe we have to create a optional argument.
pos_type body_pos = beginOfBody();
unsigned int column = 0;
if (body_pos > 0) {
// the optional argument is kept in curly brackets in
// case it contains a ']'
// This is not strictly needed, but if this is changed it
// would be a file format change, and tex2lyx would need
// to be adjusted, since it unconditionally removes the
// braces when it parses \item.
os << "[{";
column += 2;
basefont = getLabelFont(bparams, outerfont);
} else {
basefont = getLayoutFont(bparams, outerfont);
}
// Which font is currently active?
Font running_font(basefont);
// Do we have an open font change?
bool open_font = false;
Change runningChange = Change(Change::UNCHANGED);
Encoding const * const prev_encoding = runparams.encoding;
os.texrow().start(id(), 0);
// if the paragraph is empty, the loop will not be entered at all
if (empty()) {
// For InTitle commands, we have already opened a group
// in output_latex::TeXOnePar.
if (style.isCommand() && !style.intitle) {
os << '{';
++column;
}
if (!style.leftdelim().empty()) {
os << style.leftdelim();
column += style.leftdelim().size();
}
if (allowcust)
column += d->startTeXParParams(bparams, os, runparams);
}
// Whether a \par can be issued for insets typeset inline with text.
// Yes if greater than 0. This has to be static.
THREAD_LOCAL_STATIC int parInline = 0;
for (pos_type i = 0; i < size(); ++i) {
// First char in paragraph or after label?
if (i == body_pos) {
if (body_pos > 0) {
if (open_font) {
bool needPar = false;
column += running_font.latexWriteEndChanges(
os, bparams, runparams,
basefont, basefont, needPar);
open_font = false;
}
basefont = getLayoutFont(bparams, outerfont);
running_font = basefont;
column += Changes::latexMarkChange(os, bparams,
runningChange, Change(Change::UNCHANGED),
runparams);
runningChange = Change(Change::UNCHANGED);
os << "}] ";
column +=3;
}
// For InTitle commands, we have already opened a group
// in output_latex::TeXOnePar.
if (style.isCommand() && !style.intitle) {
os << '{';
++column;
}
if (!style.leftdelim().empty()) {
os << style.leftdelim();
column += style.leftdelim().size();
}
if (allowcust)
column += d->startTeXParParams(bparams, os,
runparams);
}
runparams.wasDisplayMath = runparams.inDisplayMath;
runparams.inDisplayMath = false;
bool deleted_display_math = false;
Change const & change = runparams.inDeletedInset
? runparams.changeOfDeletedInset : lookupChange(i);
char_type const c = d->text_[i];
// Check whether a display math inset follows
if (c == META_INSET
&& i >= start_pos && (end_pos == -1 || i < end_pos)) {
if (isDeleted(i))
runparams.ctObject = getInset(i)->CtObject(runparams);
InsetMath const * im = getInset(i)->asInsetMath();
if (im && im->asHullInset()
&& im->asHullInset()->outerDisplay()) {
runparams.inDisplayMath = true;
// runparams.inDeletedInset will be set by
// latexInset later, but we need this info
// before it is called. On the other hand, we
// cannot set it here because it is a counter.
deleted_display_math = isDeleted(i);
}
if (bparams.output_changes && deleted_display_math
&& runningChange == change
&& change.type == Change::DELETED
&& !os.afterParbreak()) {
// A display math in the same paragraph follows.
// We have to close and then reopen \lyxdeleted,
// otherwise the math will be shifted up.
OutputParams rp = runparams;
if (open_font) {
bool needPar = false;
column += running_font.latexWriteEndChanges(
os, bparams, rp, basefont,
basefont, needPar);
open_font = false;
}
basefont = (body_pos > i) ? getLabelFont(bparams, outerfont)
: getLayoutFont(bparams, outerfont);
running_font = basefont;
column += Changes::latexMarkChange(os, bparams,
Change(Change::INSERTED), change, rp);
}
}
if (bparams.output_changes && runningChange != change) {
if (!alien_script.empty()) {
column += 1;
os << "}";
alien_script.clear();
}
if (open_font) {
bool needPar = false;
column += running_font.latexWriteEndChanges(
os, bparams, runparams,
basefont, basefont, needPar);
open_font = false;
}
basefont = (body_pos > i) ? getLabelFont(bparams, outerfont)
: getLayoutFont(bparams, outerfont);
running_font = basefont;
column += Changes::latexMarkChange(os, bparams, runningChange,
change, runparams);
runningChange = change;
}
// do not output text which is marked deleted
// if change tracking output is disabled
if (!bparams.output_changes && change.deleted()) {
continue;
}
++column;
// Fully instantiated font
Font const current_font = getFont(bparams, i, outerfont);
Font const last_font = running_font;
// Do we need to close the previous font?
if (open_font &&
(current_font != running_font ||
current_font.language() != running_font.language()))
{
// ensure there is no open script-wrapper
if (!alien_script.empty()) {
column += 1;
os << "}";
alien_script.clear();
}
bool needPar = false;
column += running_font.latexWriteEndChanges(
os, bparams, runparams, basefont,
(i == body_pos-1) ? basefont : current_font,
needPar);
running_font = basefont;
open_font = false;
}
// if necessary, close language environment before opening CJK
string const running_lang = running_font.language()->babel();
string const lang_end_command = lyxrc.language_command_end;
if (!lang_end_command.empty() && !bparams.useNonTeXFonts
&& !running_lang.empty()
&& running_lang == openLanguageName()
&& current_font.language()->encoding()->package() == Encoding::CJK) {
string end_tag = subst(lang_end_command, "$$lang", running_lang);
os << from_ascii(end_tag);
column += end_tag.length();
popLanguageName();
}
// Switch file encoding if necessary (and allowed)
if (!runparams.pass_thru && !style.pass_thru &&
runparams.encoding->package() != Encoding::none &&
current_font.language()->encoding()->package() != Encoding::none) {
pair<bool, int> const enc_switch =
switchEncoding(os.os(), bparams, runparams,
*(current_font.language()->encoding()));
if (enc_switch.first) {
column += enc_switch.second;
runparams.encoding = current_font.language()->encoding();
}
}
// A display math inset inside an ulem command will be output
// as a box of width \linewidth, so we have to either disable
// indentation if the inset starts a paragraph, or start a new
// line to accommodate such box. This has to be done before
// writing any font changing commands.
if (runparams.inDisplayMath && !deleted_display_math
&& runparams.inulemcmd) {
if (os.afterParbreak())
os << "\\noindent";
else
os << "\\\\\n";
}
// Do we need to change font?
if ((current_font != running_font ||
current_font.language() != running_font.language()) &&
i != body_pos - 1)
{
bool const in_ct_deletion = (bparams.output_changes
&& runningChange == change
&& change.type == Change::DELETED
&& !os.afterParbreak());
if (in_ct_deletion) {
// We have to close and then reopen \lyxdeleted,
// as strikeout needs to be on lowest level.
bool needPar = false;
OutputParams rp = runparams;
column += running_font.latexWriteEndChanges(
os, bparams, rp, basefont,
basefont, needPar);
os << '}';
column += 1;
}
odocstringstream ods;
column += current_font.latexWriteStartChanges(ods, bparams,
runparams, basefont,
last_font);
// Check again for display math in ulem commands as a
// font change may also occur just before a math inset.
if (runparams.inDisplayMath && !deleted_display_math
&& runparams.inulemcmd) {
if (os.afterParbreak())
os << "\\noindent";
else
os << "\\\\\n";
}
running_font = current_font;
open_font = true;
docstring fontchange = ods.str();
// check whether the fontchange ends with a \\textcolor
// modifier and the text starts with a space (bug 4473)
docstring const last_modifier = rsplit(fontchange, '\\');
if (prefixIs(last_modifier, from_ascii("textcolor")) && c == ' ')
os << fontchange << from_ascii("{}");
// check if the fontchange ends with a trailing blank
// (like "\small " (see bug 3382)
else if (suffixIs(fontchange, ' ') && c == ' ')
os << fontchange.substr(0, fontchange.size() - 1)
<< from_ascii("{}");
else
os << fontchange;
if (in_ct_deletion) {
// We have to close and then reopen \lyxdeleted,
// as strikeout needs to be on lowest level.
OutputParams rp = runparams;
column += Changes::latexMarkChange(os, bparams,
Change(Change::UNCHANGED), change, rp);
}
}
// FIXME: think about end_pos implementation...
if (c == ' ' && i >= start_pos && (end_pos == -1 || i < end_pos)) {
// FIXME: integrate this case in latexSpecialChar
// Do not print the separation of the optional argument
// if style.pass_thru is false. This works because
// latexSpecialChar ignores spaces if
// style.pass_thru is false.
if (i != body_pos - 1) {
if (d->simpleTeXBlanks(bparams, runparams, os,
i, column, current_font, style)) {
// A surrogate pair was output. We
// must not call latexSpecialChar
// in this iteration, since it would output
// the combining character again.
++i;
continue;
}
}
}
OutputParams rp = runparams;
rp.free_spacing = style.free_spacing;
rp.local_font = &current_font;
rp.intitle = style.intitle;
// Two major modes: LaTeX or plain
// Handle here those cases common to both modes
// and then split to handle the two modes separately.
if (c == META_INSET) {
if (i >= start_pos && (end_pos == -1 || i < end_pos)) {
// Greyedout notes and, in general, all insets
// with InsetLayout::isDisplay() == false,
// are typeset inline with the text. So, we
// can add a \par to the last paragraph of
// such insets only if nothing else follows.
bool incremented = false;
Inset const * inset = getInset(i);
InsetText const * textinset = inset
? inset->asInsetText()
: 0;
if (i + 1 == size() && textinset
&& !inset->getLayout().isDisplay()) {
ParagraphList const & pars =
textinset->text().paragraphs();
pit_type const pit = pars.size() - 1;
Font const lastfont =
pit < 0 || pars[pit].empty()
? pars[pit].getLayoutFont(
bparams,
outerfont)
: pars[pit].getFont(bparams,
pars[pit].size() - 1,
outerfont);
if (lastfont.fontInfo().size() !=
basefont.fontInfo().size()) {
++parInline;
incremented = true;
}
}
d->latexInset(bparams, os, rp, running_font,
basefont, outerfont, open_font,
runningChange, style, i, column);
if (incremented)
--parInline;
if (runparams.ctObject == OutputParams::CT_DISPLAYOBJECT
|| runparams.ctObject == OutputParams::CT_UDISPLAYOBJECT) {
// Close \lyx*deleted and force its
// reopening (if needed)
os << '}';
column++;
runningChange = Change(Change::UNCHANGED);
runparams.ctObject = OutputParams::CT_NORMAL;
}
}
} else if (i >= start_pos && (end_pos == -1 || i < end_pos)) {
if (!bparams.useNonTeXFonts)
script = Encodings::isKnownScriptChar(c);
if (script != alien_script) {
if (!alien_script.empty()) {
os << "}";
alien_script.clear();
}
string fontenc = running_font.language()->fontenc(bparams);
if (!script.empty()
&& !Encodings::fontencSupportsScript(fontenc, script)) {
column += script.length() + 2;
os << "\\" << script << "{";
alien_script = script;
}
}
try {
d->latexSpecialChar(os, bparams, rp, running_font,
alien_script, style, i, end_pos, column);
} catch (EncodingException & e) {
if (runparams.dryrun) {
os << "<" << _("LyX Warning: ")
<< _("uncodable character") << " '";
os.put(c);
os << "'>";
} else {
// add location information and throw again.
e.par_id = id();
e.pos = i;
throw(e);
}
}
}
// Set the encoding to that returned from latexSpecialChar (see
// comment for encoding member in OutputParams.h)
runparams.encoding = rp.encoding;
// Also carry on the info on a closed ulem command for insets
// such as Note that do not produce any output, so that no
// command is ever executed but its opening was recorded.
runparams.inulemcmd = rp.inulemcmd;
// And finally, pass the post_macros upstream
runparams.post_macro = rp.post_macro;
}
// Close wrapper for alien script
if (!alien_script.empty()) {
os << "}";
alien_script.clear();
}
// If we have an open font definition, we have to close it
if (open_font) {
// Make sure that \\par is done with the font of the last
// character if this has another size as the default.
// This is necessary because LaTeX (and LyX on the screen)
// calculates the space between the baselines according
// to this font. (Matthias)
//
// We must not change the font for the last paragraph
// of non-multipar insets, tabular cells or commands,
// since this produces unwanted whitespace.
Font const font = empty()
? getLayoutFont(bparams, outerfont)
: getFont(bparams, size() - 1, outerfont);
InsetText const * textinset = inInset().asInsetText();
bool const maintext = textinset
? textinset->text().isMainText()
: false;
size_t const numpars = textinset
? textinset->text().paragraphs().size()
: 0;
bool needPar = false;
if (style.resfont.size() != font.fontInfo().size()
&& (!runparams.isLastPar || maintext
|| (numpars > 1 && d->ownerCode() != CELL_CODE
&& (inInset().getLayout().isDisplay()
|| parInline)))
&& !style.isCommand()) {
needPar = true;
}
#ifdef FIXED_LANGUAGE_END_DETECTION
if (next_) {
running_font.latexWriteEndChanges(os, bparams,
runparams, basefont,
next_->getFont(bparams, 0, outerfont),
needPar);
} else {
running_font.latexWriteEndChanges(os, bparams,
runparams, basefont, basefont, needPar);
}
#else
//FIXME: For now we ALWAYS have to close the foreign font settings if they are
//FIXME: there as we start another \selectlanguage with the next paragraph if
//FIXME: we are in need of this. This should be fixed sometime (Jug)
running_font.latexWriteEndChanges(os, bparams, runparams,
basefont, basefont, needPar);
#endif
if (needPar) {
// The \par could not be inserted at the same nesting
// level of the font size change, so do it now.
os << "{\\" << font.latexSize() << "\\par}";
}
}
column += Changes::latexMarkChange(os, bparams, runningChange,
Change(Change::UNCHANGED), runparams);
// Needed if there is an optional argument but no contents.
if (body_pos > 0 && body_pos == size()) {
os << "}]~";
}
if (!style.rightdelim().empty()) {
os << style.rightdelim();
column += style.rightdelim().size();
}
if (allowcust && d->endTeXParParams(bparams, os, runparams)
&& runparams.encoding != prev_encoding) {
runparams.encoding = prev_encoding;
os << setEncoding(prev_encoding->iconvName());
}
LYXERR(Debug::LATEX, "Paragraph::latex... done " << this);
}
bool Paragraph::emptyTag() const
{
for (pos_type i = 0; i < size(); ++i) {
if (Inset const * inset = getInset(i)) {
InsetCode lyx_code = inset->lyxCode();
// FIXME testing like that is wrong. What is
// the intent?
if (lyx_code != TOC_CODE &&
lyx_code != INCLUDE_CODE &&
lyx_code != GRAPHICS_CODE &&
lyx_code != ERT_CODE &&
lyx_code != LISTINGS_CODE &&
lyx_code != FLOAT_CODE &&
lyx_code != TABULAR_CODE) {
return false;
}
} else {
char_type c = d->text_[i];
if (c != ' ' && c != '\t')
return false;
}
}
return true;
}
string Paragraph::getID(Buffer const & buf, OutputParams const & runparams)
const
{
for (pos_type i = 0; i < size(); ++i) {
if (Inset const * inset = getInset(i)) {
InsetCode lyx_code = inset->lyxCode();
if (lyx_code == LABEL_CODE) {
InsetLabel const * const il = static_cast<InsetLabel const *>(inset);
docstring const & id = il->getParam("name");
return "id='" + to_utf8(sgml::cleanID(buf, runparams, id)) + "'";
}
}
}
return string();
}
pos_type Paragraph::firstWordDocBook(odocstream & os, OutputParams const & runparams)
const
{
pos_type i;
for (i = 0; i < size(); ++i) {
if (Inset const * inset = getInset(i)) {
inset->docbook(os, runparams);
} else {
char_type c = d->text_[i];
if (c == ' ')
break;
os << sgml::escapeChar(c);
}
}
return i;
}
pos_type Paragraph::firstWordLyXHTML(XHTMLStream & xs, OutputParams const & runparams)
const
{
pos_type i;
for (i = 0; i < size(); ++i) {
if (Inset const * inset = getInset(i)) {
inset->xhtml(xs, runparams);
} else {
char_type c = d->text_[i];
if (c == ' ')
break;
xs << c;
}
}
return i;
}
bool Paragraph::Private::onlyText(Buffer const & buf, Font const & outerfont, pos_type initial) const
{
Font font_old;
pos_type size = text_.size();
for (pos_type i = initial; i < size; ++i) {
Font font = owner_->getFont(buf.params(), i, outerfont);
if (text_[i] == META_INSET)
return false;
if (i != initial && font != font_old)
return false;
font_old = font;
}
return true;
}
void Paragraph::simpleDocBookOnePar(Buffer const & buf,
odocstream & os,
OutputParams const & runparams,
Font const & outerfont,
pos_type initial) const
{
bool emph_flag = false;
Layout const & style = *d->layout_;
FontInfo font_old =
style.labeltype == LABEL_MANUAL ? style.labelfont : style.font;
if (style.pass_thru && !d->onlyText(buf, outerfont, initial))
os << "]]>";
// parsing main loop
for (pos_type i = initial; i < size(); ++i) {
Font font = getFont(buf.params(), i, outerfont);
// handle <emphasis> tag
if (font_old.emph() != font.fontInfo().emph()) {
if (font.fontInfo().emph() == FONT_ON) {
os << "<emphasis>";
emph_flag = true;
} else if (i != initial) {
os << "</emphasis>";
emph_flag = false;
}
}
if (Inset const * inset = getInset(i)) {
inset->docbook(os, runparams);
} else {
char_type c = d->text_[i];
if (style.pass_thru)
os.put(c);
else
os << sgml::escapeChar(c);
}
font_old = font.fontInfo();
}
if (emph_flag) {
os << "</emphasis>";
}
if (style.free_spacing)
os << '\n';
if (style.pass_thru && !d->onlyText(buf, outerfont, initial))
os << "<![CDATA[";
}
namespace {
void doFontSwitch(vector<html::FontTag> & tagsToOpen,
vector<html::EndFontTag> & tagsToClose,
bool & flag, FontState curstate, html::FontTypes type)
{
if (curstate == FONT_ON) {
tagsToOpen.push_back(html::FontTag(type));
flag = true;
} else if (flag) {
tagsToClose.push_back(html::EndFontTag(type));
flag = false;
}
}
} // namespace
docstring Paragraph::simpleLyXHTMLOnePar(Buffer const & buf,
XHTMLStream & xs,
OutputParams const & runparams,
Font const & outerfont,
bool start_paragraph, bool close_paragraph,
pos_type initial) const
{
docstring retval;
// track whether we have opened these tags
bool emph_flag = false;
bool bold_flag = false;
bool noun_flag = false;
bool ubar_flag = false;
bool dbar_flag = false;
bool sout_flag = false;
bool xout_flag = false;
bool wave_flag = false;
// shape tags
bool shap_flag = false;
// family tags
bool faml_flag = false;
// size tags
bool size_flag = false;
Layout const & style = *d->layout_;
if (start_paragraph)
xs.startDivision(allowEmpty());
FontInfo font_old =
style.labeltype == LABEL_MANUAL ? style.labelfont : style.font;
FontShape curr_fs = INHERIT_SHAPE;
FontFamily curr_fam = INHERIT_FAMILY;
FontSize curr_size = INHERIT_SIZE;
string const default_family =
buf.masterBuffer()->params().fonts_default_family;
vector<html::FontTag> tagsToOpen;
vector<html::EndFontTag> tagsToClose;
// parsing main loop
for (pos_type i = initial; i < size(); ++i) {
// let's not show deleted material in the output
if (isDeleted(i))
continue;
Font const font = getFont(buf.masterBuffer()->params(), i, outerfont);
// emphasis
FontState curstate = font.fontInfo().emph();
if (font_old.emph() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, emph_flag, curstate, html::FT_EMPH);
// noun
curstate = font.fontInfo().noun();
if (font_old.noun() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, noun_flag, curstate, html::FT_NOUN);
// underbar
curstate = font.fontInfo().underbar();
if (font_old.underbar() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, ubar_flag, curstate, html::FT_UBAR);
// strikeout
curstate = font.fontInfo().strikeout();
if (font_old.strikeout() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, sout_flag, curstate, html::FT_SOUT);
// xout
curstate = font.fontInfo().xout();
if (font_old.xout() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, xout_flag, curstate, html::FT_XOUT);
// double underbar
curstate = font.fontInfo().uuline();
if (font_old.uuline() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, dbar_flag, curstate, html::FT_DBAR);
// wavy line
curstate = font.fontInfo().uwave();
if (font_old.uwave() != curstate)
doFontSwitch(tagsToOpen, tagsToClose, wave_flag, curstate, html::FT_WAVE);
// bold
// a little hackish, but allows us to reuse what we have.
curstate = (font.fontInfo().series() == BOLD_SERIES ? FONT_ON : FONT_OFF);
if (font_old.series() != font.fontInfo().series())
doFontSwitch(tagsToOpen, tagsToClose, bold_flag, curstate, html::FT_BOLD);
// Font shape
curr_fs = font.fontInfo().shape();
FontShape old_fs = font_old.shape();
if (old_fs != curr_fs) {
if (shap_flag) {
switch (old_fs) {
case ITALIC_SHAPE:
tagsToClose.push_back(html::EndFontTag(html::FT_ITALIC));
break;
case SLANTED_SHAPE:
tagsToClose.push_back(html::EndFontTag(html::FT_SLANTED));
break;
case SMALLCAPS_SHAPE:
tagsToClose.push_back(html::EndFontTag(html::FT_SMALLCAPS));
break;
case UP_SHAPE:
case INHERIT_SHAPE:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
shap_flag = false;
}
switch (curr_fs) {
case ITALIC_SHAPE:
tagsToOpen.push_back(html::FontTag(html::FT_ITALIC));
shap_flag = true;
break;
case SLANTED_SHAPE:
tagsToOpen.push_back(html::FontTag(html::FT_SLANTED));
shap_flag = true;
break;
case SMALLCAPS_SHAPE:
tagsToOpen.push_back(html::FontTag(html::FT_SMALLCAPS));
shap_flag = true;
break;
case UP_SHAPE:
case INHERIT_SHAPE:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
}
// Font family
curr_fam = font.fontInfo().family();
FontFamily old_fam = font_old.family();
if (old_fam != curr_fam) {
if (faml_flag) {
switch (old_fam) {
case ROMAN_FAMILY:
tagsToClose.push_back(html::EndFontTag(html::FT_ROMAN));
break;
case SANS_FAMILY:
tagsToClose.push_back(html::EndFontTag(html::FT_SANS));
break;
case TYPEWRITER_FAMILY:
tagsToClose.push_back(html::EndFontTag(html::FT_TYPE));
break;
case INHERIT_FAMILY:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
faml_flag = false;
}
switch (curr_fam) {
case ROMAN_FAMILY:
// we will treat a "default" font family as roman, since we have
// no other idea what to do.
if (default_family != "rmdefault" && default_family != "default") {
tagsToOpen.push_back(html::FontTag(html::FT_ROMAN));
faml_flag = true;
}
break;
case SANS_FAMILY:
if (default_family != "sfdefault") {
tagsToOpen.push_back(html::FontTag(html::FT_SANS));
faml_flag = true;
}
break;
case TYPEWRITER_FAMILY:
if (default_family != "ttdefault") {
tagsToOpen.push_back(html::FontTag(html::FT_TYPE));
faml_flag = true;
}
break;
case INHERIT_FAMILY:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
}
// Font size
curr_size = font.fontInfo().size();
FontSize old_size = font_old.size();
if (old_size != curr_size) {
if (size_flag) {
switch (old_size) {
case TINY_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_TINY));
break;
case SCRIPT_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_SCRIPT));
break;
case FOOTNOTE_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_FOOTNOTE));
break;
case SMALL_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_SMALL));
break;
case LARGE_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_LARGE));
break;
case LARGER_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_LARGER));
break;
case LARGEST_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_LARGEST));
break;
case HUGE_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_HUGE));
break;
case HUGER_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_HUGER));
break;
case INCREASE_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_INCREASE));
break;
case DECREASE_SIZE:
tagsToClose.push_back(html::EndFontTag(html::FT_SIZE_DECREASE));
break;
case INHERIT_SIZE:
case NORMAL_SIZE:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
size_flag = false;
}
switch (curr_size) {
case TINY_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_TINY));
size_flag = true;
break;
case SCRIPT_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_SCRIPT));
size_flag = true;
break;
case FOOTNOTE_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_FOOTNOTE));
size_flag = true;
break;
case SMALL_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_SMALL));
size_flag = true;
break;
case LARGE_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_LARGE));
size_flag = true;
break;
case LARGER_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_LARGER));
size_flag = true;
break;
case LARGEST_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_LARGEST));
size_flag = true;
break;
case HUGE_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_HUGE));
size_flag = true;
break;
case HUGER_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_HUGER));
size_flag = true;
break;
case INCREASE_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_INCREASE));
size_flag = true;
break;
case DECREASE_SIZE:
tagsToOpen.push_back(html::FontTag(html::FT_SIZE_DECREASE));
size_flag = true;
break;
case NORMAL_SIZE:
case INHERIT_SIZE:
break;
default:
// the other tags are for internal use
LATTEST(false);
break;
}
}
// FIXME XHTML
// Other such tags? What about the other text ranges?
vector<html::EndFontTag>::const_iterator cit = tagsToClose.begin();
vector<html::EndFontTag>::const_iterator cen = tagsToClose.end();
for (; cit != cen; ++cit)
xs << *cit;
vector<html::FontTag>::const_iterator sit = tagsToOpen.begin();
vector<html::FontTag>::const_iterator sen = tagsToOpen.end();
for (; sit != sen; ++sit)
xs << *sit;
tagsToClose.clear();
tagsToOpen.clear();
Inset const * inset = getInset(i);
if (inset) {
if (!runparams.for_toc || inset->isInToc()) {
OutputParams np = runparams;
np.local_font = &font;
// If the paragraph has size 1, then we are in the "special
// case" where we do not output the containing paragraph info
if (!inset->getLayout().htmlisblock() && size() != 1)
np.html_in_par = true;
retval += inset->xhtml(xs, np);
}
} else {
char_type c = getUChar(buf.masterBuffer()->params(),
runparams, i);
if (c == ' ' && (style.free_spacing || runparams.free_spacing))
xs << XHTMLStream::ESCAPE_NONE << "&nbsp;";
else
xs << c;
}
font_old = font.fontInfo();
}
// FIXME XHTML
// I'm worried about what happens if a branch, say, is itself
// wrapped in some font stuff. I think that will not work.
xs.closeFontTags();
if (close_paragraph)
xs.endDivision();
return retval;
}
bool Paragraph::isHfill(pos_type pos) const
{
Inset const * inset = getInset(pos);
return inset && inset->isHfill();
}
bool Paragraph::isNewline(pos_type pos) const
{
// U+2028 LINE SEPARATOR
// U+2029 PARAGRAPH SEPARATOR
char_type const c = d->text_[pos];
if (c == 0x2028 || c == 0x2029)
return true;
Inset const * inset = getInset(pos);
return inset && inset->lyxCode() == NEWLINE_CODE;
}
bool Paragraph::isEnvSeparator(pos_type pos) const
{
Inset const * inset = getInset(pos);
return inset && inset->lyxCode() == SEPARATOR_CODE;
}
bool Paragraph::isLineSeparator(pos_type pos) const
{
char_type const c = d->text_[pos];
if (isLineSeparatorChar(c))
return true;
Inset const * inset = getInset(pos);
return inset && inset->isLineSeparator();
}
bool Paragraph::isWordSeparator(pos_type pos, bool const ignore_deleted) const
{
if (pos == size())
return true;
if (ignore_deleted && isDeleted(pos))
return false;
if (Inset const * inset = getInset(pos))
return !inset->isLetter();
// if we have a hard hyphen (no en- or emdash) or apostrophe
// we pass this to the spell checker
// FIXME: this method is subject to change, visit
// https://bugzilla.mozilla.org/show_bug.cgi?id=355178
// to get an impression how complex this is.
if (isHardHyphenOrApostrophe(pos))
return false;
char_type const c = d->text_[pos];
// We want to pass the escape chars to the spellchecker
docstring const escape_chars = from_utf8(lyxrc.spellchecker_esc_chars);
return !isLetterChar(c) && !isDigitASCII(c) && !contains(escape_chars, c);
}
bool Paragraph::isHardHyphenOrApostrophe(pos_type pos) const
{
pos_type const psize = size();
if (pos >= psize)
return false;
char_type const c = d->text_[pos];
if (c != '-' && c != '\'')
return false;
int nextpos = pos + 1;
int prevpos = pos > 0 ? pos - 1 : 0;
if ((nextpos == psize || isSpace(nextpos))
&& (pos == 0 || isSpace(prevpos)))
return false;
return true;
}
bool Paragraph::needsCProtection(bool const fragile) const
{
// first check the layout of the paragraph, but only in insets
InsetText const * textinset = inInset().asInsetText();
bool const maintext = textinset
? textinset->text().isMainText()
: false;
if (!maintext && layout().needcprotect) {
// Environments need cprotection regardless the content
if (layout().latextype == LATEX_ENVIRONMENT)
return true;
// Commands need cprotection if they contain specific chars
int const nchars_escape = 9;
static char_type const chars_escape[nchars_escape] = {
'&', '_', '$', '%', '#', '^', '{', '}', '\\'};
docstring const pars = asString();
for (int k = 0; k < nchars_escape; k++) {
if (contains(pars, chars_escape[k]))
return true;
}
}
// now check whether we have insets that need cprotection
pos_type size = pos_type(d->text_.size());
for (pos_type i = 0; i < size; ++i) {
if (!isInset(i))
continue;
Inset const * ins = getInset(i);
if (ins->needsCProtection(maintext, fragile))
return true;
if (ins->getLayout().latextype() == InsetLayout::ENVIRONMENT)
// Environments need cprotection regardless the content
return true;
// Now check math environments
InsetMath const * im = getInset(i)->asInsetMath();
if (!im || im->cell(0).empty())
continue;
switch(im->cell(0)[0]->lyxCode()) {
case MATH_AMSARRAY_CODE:
case MATH_SUBSTACK_CODE:
case MATH_ENV_CODE:
case MATH_XYMATRIX_CODE:
// these need cprotection
return true;
default:
break;
}
}
return false;
}
FontSpan const & Paragraph::getSpellRange(pos_type pos) const
{
return d->speller_state_.getRange(pos);
}
bool Paragraph::isChar(pos_type pos) const
{
if (Inset const * inset = getInset(pos))
return inset->isChar();
char_type const c = d->text_[pos];
return !isLetterChar(c) && !isDigitASCII(c) && !lyx::isSpace(c);
}
bool Paragraph::isSpace(pos_type pos) const
{
if (Inset const * inset = getInset(pos))
return inset->isSpace();
char_type const c = d->text_[pos];
return lyx::isSpace(c);
}
Language const *
Paragraph::getParLanguage(BufferParams const & bparams) const
{
if (!empty())
return getFirstFontSettings(bparams).language();
// FIXME: we should check the prev par as well (Lgb)
return bparams.language;
}
bool Paragraph::isRTL(BufferParams const & bparams) const
{
return getParLanguage(bparams)->rightToLeft()
&& !inInset().getLayout().forceLTR();
}
void Paragraph::changeLanguage(BufferParams const & bparams,
Language const * from, Language const * to)
{
// change language including dummy font change at the end
for (pos_type i = 0; i <= size(); ++i) {
Font font = getFontSettings(bparams, i);
if (font.language() == from) {
font.setLanguage(to);
setFont(i, font);
d->requestSpellCheck(i);
}
}
}
bool Paragraph::isMultiLingual(BufferParams const & bparams) const
{
Language const * doc_language = bparams.language;
for (auto const & f : d->fontlist_)
if (f.font().language() != ignore_language &&
f.font().language() != latex_language &&
f.font().language() != doc_language)
return true;
return false;
}
void Paragraph::getLanguages(std::set<Language const *> & langs) const
{
for (auto const & f : d->fontlist_) {
Language const * lang = f.font().language();
if (lang != ignore_language &&
lang != latex_language)
langs.insert(lang);
}
}
docstring Paragraph::asString(int options) const
{
return asString(0, size(), options);
}
docstring Paragraph::asString(pos_type beg, pos_type end, int options, const OutputParams *runparams) const
{
odocstringstream os;
if (beg == 0
&& options & AS_STR_LABEL
&& !d->params_.labelString().empty())
os << d->params_.labelString() << ' ';
for (pos_type i = beg; i < end; ++i) {
if ((options & AS_STR_SKIPDELETE) && isDeleted(i))
continue;
char_type const c = d->text_[i];
if (isPrintable(c) || c == '\t'
|| (c == '\n' && (options & AS_STR_NEWLINES)))
os.put(c);
else if (c == META_INSET && (options & AS_STR_INSETS)) {
if (c == META_INSET && (options & AS_STR_PLAINTEXT)) {
LASSERT(runparams != 0, return docstring());
getInset(i)->plaintext(os, *runparams);
} else {
getInset(i)->toString(os);
}
}
}
return os.str();
}
void Paragraph::forOutliner(docstring & os, size_t const maxlen,
bool const shorten, bool const label) const
{
size_t tmplen = shorten ? maxlen + 1 : maxlen;
if (label && !labelString().empty())
os += labelString() + ' ';
if (!layout().isTocCaption())
return;
for (pos_type i = 0; i < size() && os.length() < tmplen; ++i) {
if (isDeleted(i))
continue;
char_type const c = d->text_[i];
if (isPrintable(c))
os += c;
else if (c == META_INSET)
getInset(i)->forOutliner(os, tmplen, false);
}
if (shorten)
Text::shortenForOutliner(os, maxlen);
}
void Paragraph::setInsetOwner(Inset const * inset)
{
d->inset_owner_ = inset;
}
int Paragraph::id() const
{
return d->id_;
}
void Paragraph::setId(int id)
{
d->id_ = id;
}
Layout const & Paragraph::layout() const
{
return *d->layout_;
}
void Paragraph::setLayout(Layout const & layout)
{
d->layout_ = &layout;
}
void Paragraph::setDefaultLayout(DocumentClass const & tc)
{
setLayout(tc.defaultLayout());
}
void Paragraph::setPlainLayout(DocumentClass const & tc)
{
setLayout(tc.plainLayout());
}
void Paragraph::setPlainOrDefaultLayout(DocumentClass const & tclass)
{
if (usePlainLayout())
setPlainLayout(tclass);
else
setDefaultLayout(tclass);
}
Inset const & Paragraph::inInset() const
{
LBUFERR(d->inset_owner_);
return *d->inset_owner_;
}
ParagraphParameters & Paragraph::params()
{
return d->params_;
}
ParagraphParameters const & Paragraph::params() const
{
return d->params_;
}
bool Paragraph::isFreeSpacing() const
{
if (d->layout_->free_spacing)
return true;
return d->inset_owner_ && d->inset_owner_->isFreeSpacing();
}
bool Paragraph::allowEmpty() const
{
if (d->layout_->keepempty)
return true;
return d->inset_owner_ && d->inset_owner_->allowEmpty();
}
bool Paragraph::brokenBiblio() const
{
// There is a problem if there is no bibitem at position 0 in
// paragraphs that need one, if there is another bibitem in the
// paragraph or if this paragraph is not supposed to have
// a bibitem inset at all.
return ((d->layout_->labeltype == LABEL_BIBLIO
&& (d->insetlist_.find(BIBITEM_CODE) != 0
|| d->insetlist_.find(BIBITEM_CODE, 1) > 0))
|| (d->layout_->labeltype != LABEL_BIBLIO
&& d->insetlist_.find(BIBITEM_CODE) != -1));
}
int Paragraph::fixBiblio(Buffer const & buffer)
{
// FIXME: when there was already an inset at 0, the return value is 1,
// which does not tell whether another inset has been remove; the
// cursor cannot be correctly updated.
bool const track_changes = buffer.params().track_changes;
int bibitem_pos = d->insetlist_.find(BIBITEM_CODE);
// The case where paragraph is not BIBLIO
if (d->layout_->labeltype != LABEL_BIBLIO) {
if (bibitem_pos == -1)
// No InsetBibitem => OK
return 0;
// There is an InsetBibitem: remove it!
d->insetlist_.release(bibitem_pos);
eraseChar(bibitem_pos, track_changes);
return (bibitem_pos == 0) ? -1 : -bibitem_pos;
}
bool const hasbibitem0 = bibitem_pos == 0;
if (hasbibitem0) {
bibitem_pos = d->insetlist_.find(BIBITEM_CODE, 1);
// There was an InsetBibitem at pos 0,
// and no other one => OK
if (bibitem_pos == -1)
return 0;
// there is a bibitem at the 0 position, but since
// there is a second one, we copy the second on the
// first. We're assuming there are at most two of
// these, which there should be.
// FIXME: why does it make sense to do that rather
// than keep the first? (JMarc)
Inset * inset = releaseInset(bibitem_pos);
d->insetlist_.begin()->inset = inset;
return -bibitem_pos;
}
// We need to create an inset at the beginning
Inset * inset = nullptr;
if (bibitem_pos > 0) {
// there was one somewhere in the paragraph, let's move it
inset = d->insetlist_.release(bibitem_pos);
eraseChar(bibitem_pos, track_changes);
} else
// make a fresh one
inset = new InsetBibitem(const_cast<Buffer *>(&buffer),
InsetCommandParams(BIBITEM_CODE));
Font font(inherit_font, buffer.params().language);
insertInset(0, inset, font, Change(track_changes ? Change::INSERTED
: Change::UNCHANGED));
// This is needed to get the counters right
buffer.updateBuffer();
return 1;
}
void Paragraph::checkAuthors(AuthorList const & authorList)
{
d->changes_.checkAuthors(authorList);
}
bool Paragraph::isChanged(pos_type pos) const
{
return lookupChange(pos).changed();
}
bool Paragraph::isInserted(pos_type pos) const
{
return lookupChange(pos).inserted();
}
bool Paragraph::isDeleted(pos_type pos) const
{
return lookupChange(pos).deleted();
}
InsetList const & Paragraph::insetList() const
{
return d->insetlist_;
}
void Paragraph::setInsetBuffers(Buffer & b)
{
d->insetlist_.setBuffer(b);
}
void Paragraph::resetBuffer()
{
d->insetlist_.resetBuffer();
}
Inset * Paragraph::releaseInset(pos_type pos)
{
Inset * inset = d->insetlist_.release(pos);
/// does not honour change tracking!
eraseChar(pos, false);
return inset;
}
Inset * Paragraph::getInset(pos_type pos)
{
return (pos < pos_type(d->text_.size()) && d->text_[pos] == META_INSET)
? d->insetlist_.get(pos) : 0;
}
Inset const * Paragraph::getInset(pos_type pos) const
{
return (pos < pos_type(d->text_.size()) && d->text_[pos] == META_INSET)
? d->insetlist_.get(pos) : 0;
}
void Paragraph::changeCase(BufferParams const & bparams, pos_type pos,
pos_type & right, TextCase action)
{
// process sequences of modified characters; in change
// tracking mode, this approach results in much better
// usability than changing case on a char-by-char basis
// We also need to track the current font, since font
// changes within sequences can occur.
vector<pair<char_type, Font> > changes;
bool const trackChanges = bparams.track_changes;
bool capitalize = true;
for (; pos < right; ++pos) {
char_type oldChar = d->text_[pos];
char_type newChar = oldChar;
// ignore insets and don't play with deleted text!
if (oldChar != META_INSET && !isDeleted(pos)) {
switch (action) {
case text_lowercase:
newChar = lowercase(oldChar);
break;
case text_capitalization:
if (capitalize) {
newChar = uppercase(oldChar);
capitalize = false;
}
break;
case text_uppercase:
newChar = uppercase(oldChar);
break;
}
}
if (isWordSeparator(pos) || isDeleted(pos)) {
// permit capitalization again
capitalize = true;
}
if (oldChar != newChar) {
changes.push_back(make_pair(newChar, getFontSettings(bparams, pos)));
if (pos != right - 1)
continue;
// step behind the changing area
pos++;
}
int erasePos = pos - changes.size();
for (size_t i = 0; i < changes.size(); i++) {
insertChar(pos, changes[i].first,
changes[i].second,
trackChanges);
if (!eraseChar(erasePos, trackChanges)) {
++erasePos;
++pos; // advance
++right; // expand selection
}
}
changes.clear();
}
}
int Paragraph::find(docstring const & str, bool cs, bool mw,
pos_type start_pos, bool del) const
{
pos_type pos = start_pos;
int const strsize = str.length();
int i = 0;
pos_type const parsize = d->text_.size();
for (i = 0; i < strsize && pos < parsize; ++i, ++pos) {
// Ignore "invisible" letters such as ligature breaks
// and hyphenation chars while searching
while (pos < parsize - 1 && isInset(pos)) {
odocstringstream os;
getInset(pos)->toString(os);
if (!getInset(pos)->isLetter() || !os.str().empty())
break;
pos++;
}
if (cs && str[i] != d->text_[pos])
break;
if (!cs && uppercase(str[i]) != uppercase(d->text_[pos]))
break;
if (!del && isDeleted(pos))
break;
}
if (i != strsize)
return 0;
// if necessary, check whether string matches word
if (mw) {
if (start_pos > 0 && !isWordSeparator(start_pos - 1))
return 0;
if (pos < parsize
&& !isWordSeparator(pos))
return 0;
}
return pos - start_pos;
}
char_type Paragraph::getChar(pos_type pos) const
{
return d->text_[pos];
}
pos_type Paragraph::size() const
{
return d->text_.size();
}
bool Paragraph::empty() const
{
return d->text_.empty();
}
bool Paragraph::isInset(pos_type pos) const
{
return d->text_[pos] == META_INSET;
}
bool Paragraph::isSeparator(pos_type pos) const
{
//FIXME: Are we sure this can be the only separator?
return d->text_[pos] == ' ';
}
void Paragraph::deregisterWords()
{
Private::LangWordsMap::const_iterator itl = d->words_.begin();
Private::LangWordsMap::const_iterator ite = d->words_.end();
for (; itl != ite; ++itl) {
WordList & wl = theWordList(itl->first);
Private::Words::const_iterator it = (itl->second).begin();
Private::Words::const_iterator et = (itl->second).end();
for (; it != et; ++it)
wl.remove(*it);
}
d->words_.clear();
}
void Paragraph::locateWord(pos_type & from, pos_type & to,
word_location const loc, bool const ignore_deleted) const
{
switch (loc) {
case WHOLE_WORD_STRICT:
if (from == 0 || from == size()
|| isWordSeparator(from, ignore_deleted)
|| isWordSeparator(from - 1, ignore_deleted)) {
to = from;
return;
}
// fall through
case WHOLE_WORD:
// If we are already at the beginning of a word, do nothing
if (!from || isWordSeparator(from - 1, ignore_deleted))
break;
// fall through
case PREVIOUS_WORD:
// always move the cursor to the beginning of previous word
while (from && !isWordSeparator(from - 1, ignore_deleted))
--from;
break;
case NEXT_WORD:
LYXERR0("Paragraph::locateWord: NEXT_WORD not implemented yet");
break;
case PARTIAL_WORD:
// no need to move the 'from' cursor
break;
}
to = from;
while (to < size() && !isWordSeparator(to, ignore_deleted))
++to;
}
void Paragraph::collectWords()
{
for (pos_type pos = 0; pos < size(); ++pos) {
if (isWordSeparator(pos))
continue;
pos_type from = pos;
locateWord(from, pos, WHOLE_WORD);
// Work around MSVC warning: The statement
// if (pos < from + lyxrc.completion_minlength)
// triggers a signed vs. unsigned warning.
// I don't know why this happens, it could be a MSVC bug, or
// related to LLP64 (windows) vs. LP64 (unix) programming
// model, or the C++ standard might be ambigous in the section
// defining the "usual arithmetic conversions". However, using
// a temporary variable is safe and works on all compilers.
pos_type const endpos = from + lyxrc.completion_minlength;
if (pos < endpos)
continue;
FontList::const_iterator cit = d->fontlist_.fontIterator(from);
if (cit == d->fontlist_.end())
return;
Language const * lang = cit->font().language();
docstring const word = asString(from, pos, AS_STR_NONE);
d->words_[lang->lang()].insert(word);
}
}
void Paragraph::registerWords()
{
Private::LangWordsMap::const_iterator itl = d->words_.begin();
Private::LangWordsMap::const_iterator ite = d->words_.end();
for (; itl != ite; ++itl) {
WordList & wl = theWordList(itl->first);
Private::Words::const_iterator it = (itl->second).begin();
Private::Words::const_iterator et = (itl->second).end();
for (; it != et; ++it)
wl.insert(*it);
}
}
void Paragraph::updateWords()
{
deregisterWords();
collectWords();
registerWords();
}
void Paragraph::Private::appendSkipPosition(SkipPositions & skips, pos_type const pos) const
{
SkipPositionsIterator begin = skips.begin();
SkipPositions::iterator end = skips.end();
if (pos > 0 && begin < end) {
--end;
if (end->last == pos - 1) {
end->last = pos;
return;
}
}
skips.insert(end, FontSpan(pos, pos));
}
Language * Paragraph::Private::locateSpellRange(
pos_type & from, pos_type & to,
SkipPositions & skips) const
{
// skip leading white space
while (from < to && owner_->isWordSeparator(from))
++from;
// don't check empty range
if (from >= to)
return 0;
// get current language
Language * lang = getSpellLanguage(from);
pos_type last = from;
bool samelang = true;
bool sameinset = true;
while (last < to && samelang && sameinset) {
// hop to end of word
while (last < to && !owner_->isWordSeparator(last)) {
if (owner_->getInset(last)) {
appendSkipPosition(skips, last);
} else if (owner_->isDeleted(last)) {
appendSkipPosition(skips, last);
}
++last;
}
// hop to next word while checking for insets
while (sameinset && last < to && owner_->isWordSeparator(last)) {
if (Inset const * inset = owner_->getInset(last))
sameinset = inset->isChar() && inset->isLetter();
if (sameinset && owner_->isDeleted(last)) {
appendSkipPosition(skips, last);
}
if (sameinset)
last++;
}
if (sameinset && last < to) {
// now check for language change
samelang = lang == getSpellLanguage(last);
}
}
// if language change detected backstep is needed
if (!samelang)
--last;
to = last;
return lang;
}
Language * Paragraph::Private::getSpellLanguage(pos_type const from) const
{
Language * lang =
const_cast<Language *>(owner_->getFontSettings(
inset_owner_->buffer().params(), from).language());
if (lang == inset_owner_->buffer().params().language
&& !lyxrc.spellchecker_alt_lang.empty()) {
string lang_code;
string const lang_variety =
split(lyxrc.spellchecker_alt_lang, lang_code, '-');
lang->setCode(lang_code);
lang->setVariety(lang_variety);
}
return lang;
}
void Paragraph::requestSpellCheck(pos_type pos)
{
d->requestSpellCheck(pos);
}
bool Paragraph::needsSpellCheck() const
{
SpellChecker::ChangeNumber speller_change_number = 0;
if (theSpellChecker())
speller_change_number = theSpellChecker()->changeNumber();
if (speller_change_number > d->speller_state_.currentChangeNumber()) {
d->speller_state_.needsCompleteRefresh(speller_change_number);
}
return d->needsSpellCheck();
}
bool Paragraph::Private::ignoreWord(docstring const & word) const
{
// Ignore words with digits
// FIXME: make this customizable
// (note that some checkers ignore words with digits by default)
docstring::const_iterator cit = word.begin();
docstring::const_iterator const end = word.end();
for (; cit != end; ++cit) {
if (isNumber((*cit)))
return true;
}
return false;
}
SpellChecker::Result Paragraph::spellCheck(pos_type & from, pos_type & to,
WordLangTuple & wl, docstring_list & suggestions,
bool do_suggestion, bool check_learned) const
{
SpellChecker::Result result = SpellChecker::WORD_OK;
SpellChecker * speller = theSpellChecker();
if (!speller)
return result;
if (!d->layout_->spellcheck || !inInset().allowSpellCheck())
return result;
locateWord(from, to, WHOLE_WORD, true);
if (from == to || from >= size())
return result;
docstring word = asString(from, to, AS_STR_INSETS | AS_STR_SKIPDELETE);
Language * lang = d->getSpellLanguage(from);
if (getFontSettings(d->inset_owner_->buffer().params(), from).fontInfo().nospellcheck() == FONT_ON)
return result;
wl = WordLangTuple(word, lang);
if (word.empty())
return result;
if (needsSpellCheck() || check_learned) {
pos_type end = to;
if (!d->ignoreWord(word)) {
bool const trailing_dot = to < size() && d->text_[to] == '.';
result = speller->check(wl);
if (SpellChecker::misspelled(result) && trailing_dot) {
wl = WordLangTuple(word.append(from_ascii(".")), lang);
result = speller->check(wl);
if (!SpellChecker::misspelled(result)) {
LYXERR(Debug::GUI, "misspelled word is correct with dot: \"" <<
word << "\" [" <<
from << ".." << to << "]");
} else {
// spell check with dot appended failed too
// restore original word/lang value
word = asString(from, to, AS_STR_INSETS | AS_STR_SKIPDELETE);
wl = WordLangTuple(word, lang);
}
}
}
if (!SpellChecker::misspelled(result)) {
// area up to the begin of the next word is not misspelled
while (end < size() && isWordSeparator(end))
++end;
}
d->setMisspelled(from, end, result);
} else {
result = d->speller_state_.getState(from);
}
if (do_suggestion)
suggestions.clear();
if (SpellChecker::misspelled(result)) {
LYXERR(Debug::GUI, "misspelled word: \"" <<
word << "\" [" <<
from << ".." << to << "]");
if (do_suggestion)
speller->suggest(wl, suggestions);
}
return result;
}
void Paragraph::anonymize()
{
// This is a very crude anonymization for now
for (char_type & c : d->text_)
if (isLetterChar(c) || isNumber(c))
c = 'a';
}
void Paragraph::Private::markMisspelledWords(
pos_type const & first, pos_type const & last,
SpellChecker::Result result,
docstring const & word,
SkipPositions const & skips)
{
if (!SpellChecker::misspelled(result)) {
setMisspelled(first, last, SpellChecker::WORD_OK);
return;
}
int snext = first;
SpellChecker * speller = theSpellChecker();
// locate and enumerate the error positions
int nerrors = speller->numMisspelledWords();
int numskipped = 0;
SkipPositionsIterator it = skips.begin();
SkipPositionsIterator et = skips.end();
for (int index = 0; index < nerrors; ++index) {
int wstart;
int wlen = 0;
speller->misspelledWord(index, wstart, wlen);
/// should not happen if speller supports range checks
if (!wlen) continue;
docstring const misspelled = word.substr(wstart, wlen);
wstart += first + numskipped;
if (snext < wstart) {
/// mark the range of correct spelling
numskipped += countSkips(it, et, wstart);
setMisspelled(snext,
wstart - 1, SpellChecker::WORD_OK);
}
snext = wstart + wlen;
numskipped += countSkips(it, et, snext);
/// mark the range of misspelling
setMisspelled(wstart, snext, result);
LYXERR(Debug::GUI, "misspelled word: \"" <<
misspelled << "\" [" <<
wstart << ".." << (snext-1) << "]");
++snext;
}
if (snext <= last) {
/// mark the range of correct spelling at end
setMisspelled(snext, last, SpellChecker::WORD_OK);
}
}
void Paragraph::spellCheck() const
{
SpellChecker * speller = theSpellChecker();
if (!speller || empty() ||!needsSpellCheck())
return;
pos_type start;
pos_type endpos;
d->rangeOfSpellCheck(start, endpos);
if (speller->canCheckParagraph()) {
// loop until we leave the range
for (pos_type first = start; first < endpos; ) {
pos_type last = endpos;
Private::SkipPositions skips;
Language * lang = d->locateSpellRange(first, last, skips);
if (first >= endpos)
break;
// start the spell checker on the unit of meaning
docstring word = asString(first, last, AS_STR_INSETS + AS_STR_SKIPDELETE);
WordLangTuple wl = WordLangTuple(word, lang);
SpellChecker::Result result = word.size() ?
speller->check(wl) : SpellChecker::WORD_OK;
d->markMisspelledWords(first, last, result, word, skips);
first = ++last;
}
} else {
static docstring_list suggestions;
pos_type to = endpos;
while (start < endpos) {
WordLangTuple wl;
spellCheck(start, to, wl, suggestions, false);
start = to + 1;
}
}
d->readySpellCheck();
}
bool Paragraph::isMisspelled(pos_type pos, bool check_boundary) const
{
bool result = SpellChecker::misspelled(d->speller_state_.getState(pos));
if (result || pos <= 0 || pos > size())
return result;
if (check_boundary && (pos == size() || isWordSeparator(pos)))
result = SpellChecker::misspelled(d->speller_state_.getState(pos - 1));
return result;
}
string Paragraph::magicLabel() const
{
stringstream ss;
ss << "magicparlabel-" << id();
return ss.str();
}
} // namespace lyx
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