lyx_mirror/src/paragraph.C
Martin Vermeer 6688a55908 Fix bug 2115 ("blueline bug")
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@10808 a592a061-630c-0410-9148-cb99ea01b6c8
2006-02-05 13:20:16 +00:00

1859 lines
40 KiB
C

/**
* \file paragraph.C
* 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 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 "paragraph_pimpl.h"
#include "buffer.h"
#include "bufferparams.h"
#include "counters.h"
#include "encoding.h"
#include "debug.h"
#include "gettext.h"
#include "language.h"
#include "LaTeXFeatures.h"
#include "lyxfont.h"
#include "lyxrc.h"
#include "lyxrow.h"
#include "outputparams.h"
#include "paragraph_funcs.h"
#include "ParagraphList_fwd.h"
#include "sgml.h"
#include "texrow.h"
#include "vspace.h"
#include "insets/insetbibitem.h"
#include "insets/insetoptarg.h"
#include "support/lstrings.h"
#include "support/textutils.h"
#include "support/convert.h"
#include <boost/tuple/tuple.hpp>
#include <boost/bind.hpp>
#include <algorithm>
#include <list>
#include <stack>
#include <sstream>
using lyx::pos_type;
using lyx::support::subst;
using std::distance;
using std::endl;
using std::list;
using std::stack;
using std::string;
using std::ostream;
using std::ostringstream;
ParagraphList::ParagraphList()
{}
Paragraph::Paragraph()
: begin_of_body_(0), pimpl_(new Paragraph::Pimpl(this))
{
itemdepth = 0;
params().clear();
}
Paragraph::Paragraph(Paragraph const & par)
: itemdepth(par.itemdepth), insetlist(par.insetlist),
dim_(par.dim_),
rows_(par.rows_), rowSignature_(par.rowSignature_),
layout_(par.layout_),
text_(par.text_), begin_of_body_(par.begin_of_body_),
pimpl_(new Paragraph::Pimpl(*par.pimpl_, this))
{
//lyxerr << "Paragraph::Paragraph(Paragraph const&)" << endl;
InsetList::iterator it = insetlist.begin();
InsetList::iterator end = insetlist.end();
for (; it != end; ++it)
it->inset = it->inset->clone().release();
}
Paragraph & Paragraph::operator=(Paragraph const & par)
{
// needed as we will destroy the pimpl_ before copying it
if (&par != this) {
itemdepth = par.itemdepth;
insetlist = par.insetlist;
InsetList::iterator it = insetlist.begin();
InsetList::iterator end = insetlist.end();
for (; it != end; ++it)
it->inset = it->inset->clone().release();
rows_ = par.rows_;
dim_ = par.dim_;
rowSignature_ = par.rowSignature_;
layout_ = par.layout();
text_ = par.text_;
begin_of_body_ = par.begin_of_body_;
delete pimpl_;
pimpl_ = new Pimpl(*par.pimpl_, this);
}
return *this;
}
Paragraph::~Paragraph()
{
delete pimpl_;
//
//lyxerr << "Paragraph::paragraph_id = "
// << Paragraph::paragraph_id << endl;
}
void Paragraph::write(Buffer const & buf, ostream & os,
BufferParams const & bparams,
depth_type & dth) const
{
// The beginning or end of a deeper (i.e. nested) area?
if (dth != params().depth()) {
if (params().depth() > dth) {
while (params().depth() > dth) {
os << "\n\\begin_deeper";
++dth;
}
} else {
while (params().depth() < dth) {
os << "\n\\end_deeper";
--dth;
}
}
}
// First write the layout
os << "\n\\begin_layout " << layout()->name() << '\n';
params().write(os);
LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
Change running_change = Change(Change::UNCHANGED);
lyx::time_type const curtime(lyx::current_time());
int column = 0;
for (pos_type i = 0; i < size(); ++i) {
Change change = pimpl_->lookupChangeFull(i);
Changes::lyxMarkChange(os, column, curtime, running_change, change);
running_change = change;
// Write font changes
LyXFont font2 = getFontSettings(bparams, i);
if (font2 != font1) {
font2.lyxWriteChanges(font1, os);
column = 0;
font1 = font2;
}
value_type const c = getChar(i);
switch (c) {
case META_INSET:
{
InsetBase const * inset = getInset(i);
if (inset)
if (inset->directWrite()) {
// international char, let it write
// code directly so it's shorter in
// the file
inset->write(buf, os);
} else {
if (i)
os << '\n';
os << "\\begin_inset ";
inset->write(buf, os);
os << "\n\\end_inset\n\n";
column = 0;
}
}
break;
case '\\':
os << "\n\\backslash\n";
column = 0;
break;
case '.':
if (i + 1 < size() && getChar(i + 1) == ' ') {
os << ".\n";
column = 0;
} else
os << '.';
break;
default:
if ((column > 70 && c == ' ')
|| column > 79) {
os << '\n';
column = 0;
}
// this check is to amend a bug. LyX sometimes
// inserts '\0' this could cause problems.
if (c != '\0')
os << c;
else
lyxerr << "ERROR (Paragraph::writeFile):"
" NULL char in structure." << endl;
++column;
break;
}
}
// to make reading work properly
if (!size()) {
running_change = pimpl_->lookupChange(0);
Changes::lyxMarkChange(os, column, curtime,
Change(Change::UNCHANGED), running_change);
}
Changes::lyxMarkChange(os, column, curtime,
running_change, Change(Change::UNCHANGED));
os << "\n\\end_layout\n";
}
void Paragraph::validate(LaTeXFeatures & features) const
{
pimpl_->validate(features, *layout());
}
void Paragraph::eraseIntern(lyx::pos_type pos)
{
pimpl_->eraseIntern(pos);
}
bool Paragraph::erase(pos_type pos)
{
return pimpl_->erase(pos);
}
int Paragraph::erase(pos_type start, pos_type end)
{
return pimpl_->erase(start, end);
}
void Paragraph::insert(pos_type start, string const & str,
LyXFont const & font)
{
for (size_t i = 0, n = str.size(); i != n ; ++i)
insertChar(start + i, str[i], font);
}
void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
Change change)
{
pimpl_->insertChar(pos, c, change);
}
void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
LyXFont const & font, Change change)
{
pimpl_->insertChar(pos, c, change);
setFont(pos, font);
}
void Paragraph::insertInset(pos_type pos, InsetBase * inset, Change change)
{
pimpl_->insertInset(pos, inset, change);
}
void Paragraph::insertInset(pos_type pos, InsetBase * inset,
LyXFont const & font, Change change)
{
pimpl_->insertInset(pos, inset, change);
setFont(pos, font);
}
bool Paragraph::insetAllowed(InsetBase_code code)
{
return !pimpl_->inset_owner || pimpl_->inset_owner->insetAllowed(code);
}
// Gets uninstantiated font setting at position.
LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
pos_type pos) const
{
if (pos > size()) {
lyxerr << " pos: " << pos << " size: " << size() << endl;
BOOST_ASSERT(pos <= size());
}
Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
for (; cit != end; ++cit)
if (cit->pos() >= pos)
break;
if (cit != end)
return cit->font();
if (pos == size() && !empty())
return getFontSettings(bparams, pos - 1);
return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
}
FontSpan Paragraph::fontSpan(lyx::pos_type pos) const
{
BOOST_ASSERT(pos <= size());
lyx::pos_type start = 0;
Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
for (; cit != end; ++cit) {
if (cit->pos() >= pos) {
if (pos >= beginOfBody())
return FontSpan(std::max(start, beginOfBody()),
cit->pos());
else
return FontSpan(start,
std::min(beginOfBody() - 1,
cit->pos()));
}
start = cit->pos() + 1;
}
// This should not happen, but if so, we take no chances.
//lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
// << endl;
return FontSpan(pos, pos);
}
// Gets uninstantiated font setting at position 0
LyXFont const Paragraph::getFirstFontSettings(BufferParams const & bparams) const
{
if (!empty() && !pimpl_->fontlist.empty())
return pimpl_->fontlist[0].font();
return LyXFont(LyXFont::ALL_INHERIT, bparams.language);
}
// Gets the fully instantiated font at a given position in a paragraph
// This is basically the same function as LyXText::GetFont() in text2.C.
// 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)
LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
LyXFont const & outerfont) const
{
BOOST_ASSERT(pos >= 0);
LyXLayout_ptr const & lout = layout();
pos_type const body_pos = beginOfBody();
LyXFont layoutfont;
if (pos < body_pos)
layoutfont = lout->labelfont;
else
layoutfont = lout->font;
LyXFont font = getFontSettings(bparams, pos);
font.realize(layoutfont);
font.realize(outerfont);
font.realize(bparams.getLyXTextClass().defaultfont());
return font;
}
LyXFont const Paragraph::getLabelFont
(BufferParams const & bparams, LyXFont const & outerfont) const
{
LyXFont tmpfont = layout()->labelfont;
tmpfont.setLanguage(getParLanguage(bparams));
tmpfont.realize(outerfont);
tmpfont.realize(bparams.getLyXTextClass().defaultfont());
return tmpfont;
}
LyXFont const Paragraph::getLayoutFont
(BufferParams const & bparams, LyXFont const & outerfont) const
{
LyXFont tmpfont = layout()->font;
tmpfont.setLanguage(getParLanguage(bparams));
tmpfont.realize(outerfont);
tmpfont.realize(bparams.getLyXTextClass().defaultfont());
return tmpfont;
}
/// Returns the height of the highest font in range
LyXFont_size Paragraph::highestFontInRange
(pos_type startpos, pos_type endpos, LyXFont_size def_size) const
{
if (pimpl_->fontlist.empty())
return def_size;
Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
Pimpl::FontList::const_iterator const end = pimpl_->fontlist.end();
for (; end_it != end; ++end_it) {
if (end_it->pos() >= endpos)
break;
}
if (end_it != end)
++end_it;
Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
for (; cit != end; ++cit) {
if (cit->pos() >= startpos)
break;
}
LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
for (; cit != end_it; ++cit) {
LyXFont::FONT_SIZE size = cit->font().size();
if (size == LyXFont::INHERIT_SIZE)
size = def_size;
if (size > maxsize && size <= LyXFont::SIZE_HUGER)
maxsize = size;
}
return maxsize;
}
Paragraph::value_type
Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
{
value_type c = getChar(pos);
if (!lyxrc.rtl_support)
return c;
value_type uc = c;
switch (c) {
case '(':
uc = ')';
break;
case ')':
uc = '(';
break;
case '[':
uc = ']';
break;
case ']':
uc = '[';
break;
case '{':
uc = '}';
break;
case '}':
uc = '{';
break;
case '<':
uc = '>';
break;
case '>':
uc = '<';
break;
}
if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
return uc;
else
return c;
}
void Paragraph::setFont(pos_type pos, LyXFont const & font)
{
BOOST_ASSERT(pos <= size());
// First, reduce font against layout/label font
// Update: The setCharFont() routine in text2.C already
// reduces font, so we don't need to do that here. (Asger)
// No need to simplify this because it will disappear
// in a new kernel. (Asger)
// Next search font table
Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
Pimpl::FontList::iterator it = beg;
Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
for (; it != endit; ++it) {
if (it->pos() >= pos)
break;
}
size_t const i = distance(beg, it);
bool notfound = (it == endit);
if (!notfound && pimpl_->fontlist[i].font() == font)
return;
bool begin = pos == 0 || notfound ||
(i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
// Is position pos is a beginning of a font block?
bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
// Is position pos is the end of a font block?
if (begin && end) { // A single char block
if (i + 1 < pimpl_->fontlist.size() &&
pimpl_->fontlist[i + 1].font() == font) {
// Merge the singleton block with the next block
pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
} else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
// Merge the singleton block with the previous block
pimpl_->fontlist[i - 1].pos(pos);
pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
} else
pimpl_->fontlist[i].font(font);
} else if (begin) {
if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
pimpl_->fontlist[i - 1].pos(pos);
else
pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
Pimpl::FontTable(pos, font));
} else if (end) {
pimpl_->fontlist[i].pos(pos - 1);
if (!(i + 1 < pimpl_->fontlist.size() &&
pimpl_->fontlist[i + 1].font() == font))
pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
Pimpl::FontTable(pos, font));
} else { // The general case. The block is splitted into 3 blocks
pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
Pimpl::FontTable(pos, font));
}
}
void Paragraph::makeSameLayout(Paragraph const & par)
{
layout(par.layout());
// move to pimpl?
params() = par.params();
}
int Paragraph::stripLeadingSpaces()
{
if (isFreeSpacing())
return 0;
int i = 0;
while (!empty() && (isNewline(0) || isLineSeparator(0))) {
// Set Change::Type to Change::INSERTED to quietly remove it
setChange(0, Change::INSERTED);
erase(0);
++i;
}
return i;
}
bool Paragraph::hasSameLayout(Paragraph const & par) const
{
return par.layout() == layout() && params().sameLayout(par.params());
}
Paragraph::depth_type Paragraph::getDepth() const
{
return params().depth();
}
Paragraph::depth_type Paragraph::getMaxDepthAfter() const
{
if (layout()->isEnvironment())
return params().depth() + 1;
else
return params().depth();
}
char Paragraph::getAlign() const
{
return params().align();
}
string const & Paragraph::getLabelstring() const
{
return params().labelString();
}
// the next two functions are for the manual labels
string const Paragraph::getLabelWidthString() const
{
if (!params().labelWidthString().empty())
return params().labelWidthString();
else
return _("Senseless with this layout!");
}
void Paragraph::setLabelWidthString(string const & s)
{
params().labelWidthString(s);
}
void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
{
layout(new_layout);
params().labelWidthString(string());
params().align(LYX_ALIGN_LAYOUT);
params().spacing(Spacing(Spacing::Default));
}
pos_type Paragraph::beginOfBody() const
{
return begin_of_body_;
}
void Paragraph::setBeginOfBody()
{
if (layout()->labeltype != LABEL_MANUAL) {
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();
if (i < end && !isNewline(i)) {
++i;
char previous_char = 0;
char temp = 0;
if (i < end) {
previous_char = text_[i];
if (!isNewline(i)) {
++i;
while (i < end && previous_char != ' ') {
temp = text_[i];
if (isNewline(i))
break;
++i;
previous_char = temp;
}
}
}
}
begin_of_body_ = i;
}
// returns -1 if inset not found
int Paragraph::getPositionOfInset(InsetBase const * inset) const
{
// Find the entry.
InsetList::const_iterator it = insetlist.begin();
InsetList::const_iterator end = insetlist.end();
for (; it != end; ++it)
if (it->inset == inset)
return it->pos;
return -1;
}
InsetBibitem * Paragraph::bibitem() const
{
if (!insetlist.empty()) {
InsetBase * inset = insetlist.begin()->inset;
if (inset->lyxCode() == InsetBase::BIBITEM_CODE)
return static_cast<InsetBibitem *>(inset);
}
return 0;
}
bool Paragraph::forceDefaultParagraphs() const
{
return inInset() && inInset()->forceDefaultParagraphs(0);
}
namespace {
// paragraphs inside floats need different alignment tags to avoid
// unwanted space
bool noTrivlistCentering(InsetBase::Code code)
{
return code == InsetBase::FLOAT_CODE || code == InsetBase::WRAP_CODE;
}
string correction(string const & orig)
{
if (orig == "flushleft")
return "raggedright";
if (orig == "flushright")
return "raggedleft";
if (orig == "center")
return "centering";
return orig;
}
string const corrected_env(string const & suffix, string const & env,
InsetBase::Code code)
{
string output = suffix + "{";
if (noTrivlistCentering(code))
output += correction(env);
else
output += env;
return output + "}";
}
} // namespace anon
// This could go to ParagraphParameters if we want to
int Paragraph::startTeXParParams(BufferParams const & bparams,
ostream & os, bool moving_arg) const
{
int column = 0;
if (params().noindent()) {
os << "\\noindent ";
column += 10;
}
switch (params().align()) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
break;
case LYX_ALIGN_LEFT:
case LYX_ALIGN_RIGHT:
case LYX_ALIGN_CENTER:
if (moving_arg) {
os << "\\protect";
column += 8;
}
break;
}
switch (params().align()) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
break;
case LYX_ALIGN_LEFT: {
string output;
if (getParLanguage(bparams)->babel() != "hebrew")
output = corrected_env("\\begin", "flushleft", ownerCode());
else
output = corrected_env("\\begin", "flushright", ownerCode());
os << output;
column += output.size();
break;
} case LYX_ALIGN_RIGHT: {
string output;
if (getParLanguage(bparams)->babel() != "hebrew")
output = corrected_env("\\begin", "flushright", ownerCode());
else
output = corrected_env("\\begin", "flushleft", ownerCode());
os << output;
column += output.size();
break;
} case LYX_ALIGN_CENTER: {
string output;
output = corrected_env("\\begin", "center", ownerCode());
os << output;
column += output.size();
break;
}
}
return column;
}
// This could go to ParagraphParameters if we want to
int Paragraph::endTeXParParams(BufferParams const & bparams,
ostream & os, bool moving_arg) const
{
int column = 0;
switch (params().align()) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
break;
case LYX_ALIGN_LEFT:
case LYX_ALIGN_RIGHT:
case LYX_ALIGN_CENTER:
if (moving_arg) {
os << "\\protect";
column = 8;
}
break;
}
switch (params().align()) {
case LYX_ALIGN_NONE:
case LYX_ALIGN_BLOCK:
case LYX_ALIGN_LAYOUT:
case LYX_ALIGN_SPECIAL:
break;
case LYX_ALIGN_LEFT: {
string output;
if (getParLanguage(bparams)->babel() != "hebrew")
output = corrected_env("\\par\\end", "flushleft", ownerCode());
else
output = corrected_env("\\par\\end", "flushright", ownerCode());
os << output;
column += output.size();
break;
} case LYX_ALIGN_RIGHT: {
string output;
if (getParLanguage(bparams)->babel() != "hebrew")
output = corrected_env("\\par\\end", "flushright", ownerCode());
else
output = corrected_env("\\par\\end", "flushleft", ownerCode());
os << output;
column += output.size();
break;
} case LYX_ALIGN_CENTER: {
string output;
output = corrected_env("\\par\\end", "center", ownerCode());
os << output;
column += output.size();
break;
}
}
return column;
}
// This one spits out the text of the paragraph
bool Paragraph::simpleTeXOnePar(Buffer const & buf,
BufferParams const & bparams,
LyXFont const & outerfont,
ostream & os, TexRow & texrow,
OutputParams const & runparams) const
{
lyxerr[Debug::LATEX] << "SimpleTeXOnePar... " << this << endl;
bool return_value = false;
LyXLayout_ptr style;
// well we have to check if we are in an inset with unlimited
// length (all in one row) if that is true then we don't allow
// any special options in the paragraph and also we don't allow
// any environment other then "Standard" to be valid!
bool asdefault = forceDefaultParagraphs();
if (asdefault) {
style = bparams.getLyXTextClass().defaultLayout();
} else {
style = layout();
}
LyXFont basefont;
LaTeXFeatures features(buf, bparams, runparams.nice);
// output change tracking marks only if desired,
// if dvipost is installed,
// and with dvi/ps (other formats don't work)
bool const output = bparams.output_changes
&& runparams.flavor == OutputParams::LATEX
&& features.isAvailable("dvipost");
// 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 ']'
os << "[{";
column += 2;
basefont = getLabelFont(bparams, outerfont);
} else {
basefont = getLayoutFont(bparams, outerfont);
}
// Which font is currently active?
LyXFont running_font(basefont);
// Do we have an open font change?
bool open_font = false;
Change::Type running_change = Change::UNCHANGED;
texrow.start(id(), 0);
// if the paragraph is empty, the loop will not be entered at all
if (empty()) {
if (style->isCommand()) {
os << '{';
++column;
}
if (!asdefault)
column += startTeXParParams(bparams, os,
runparams.moving_arg);
}
for (pos_type i = 0; i < size(); ++i) {
++column;
// First char in paragraph or after label?
if (i == body_pos) {
if (body_pos > 0) {
if (open_font) {
column += running_font.latexWriteEndChanges(os, basefont, basefont);
open_font = false;
}
basefont = getLayoutFont(bparams, outerfont);
running_font = basefont;
os << "}] ";
column +=3;
}
if (style->isCommand()) {
os << '{';
++column;
}
if (!asdefault)
column += startTeXParParams(bparams, os,
runparams.moving_arg);
}
value_type c = getChar(i);
// Fully instantiated font
LyXFont font = getFont(bparams, i, outerfont);
LyXFont const last_font = running_font;
// Spaces at end of font change are simulated to be
// outside font change, i.e. we write "\textXX{text} "
// rather than "\textXX{text }". (Asger)
if (open_font && c == ' ' && i <= size() - 2) {
LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
if (next_font != running_font && next_font != font) {
font = next_font;
}
}
// We end font definition before blanks
if (open_font &&
(font != running_font ||
font.language() != running_font.language()))
{
column += running_font.latexWriteEndChanges(os,
basefont,
(i == body_pos-1) ? basefont : font);
running_font = basefont;
open_font = false;
}
// Blanks are printed before start of fontswitch
if (c == ' ') {
// Do not print the separation of the optional argument
if (i != body_pos - 1) {
pimpl_->simpleTeXBlanks(os, texrow, i,
column, font, *style);
}
}
// Do we need to change font?
if ((font != running_font ||
font.language() != running_font.language()) &&
i != body_pos - 1)
{
column += font.latexWriteStartChanges(os, basefont,
last_font);
running_font = font;
open_font = true;
}
Change::Type change = pimpl_->lookupChange(i);
column += Changes::latexMarkChange(os, running_change,
change, output);
running_change = change;
// do not output text which is marked deleted
// if change tracking output is not desired
if (output || running_change != Change::DELETED) {
OutputParams rp = runparams;
rp.free_spacing = style->free_spacing;
rp.local_font = &font;
rp.intitle = style->intitle;
pimpl_->simpleTeXSpecialChars(buf, bparams,
os, texrow, rp,
font, running_font,
basefont, outerfont, open_font,
running_change,
*style, i, column, c);
}
}
column += Changes::latexMarkChange(os,
running_change, Change::UNCHANGED, output);
// If we have an open font definition, we have to close it
if (open_font) {
#ifdef FIXED_LANGUAGE_END_DETECTION
if (next_) {
running_font
.latexWriteEndChanges(os, basefont,
next_->getFont(bparams,
0, outerfont));
} else {
running_font.latexWriteEndChanges(os, basefont,
basefont);
}
#else
#ifdef WITH_WARNINGS
//#warning For now we ALWAYS have to close the foreign font settings if they are
//#warning there as we start another \selectlanguage with the next paragraph if
//#warning we are in need of this. This should be fixed sometime (Jug)
#endif
running_font.latexWriteEndChanges(os, basefont, basefont);
#endif
}
// Needed if there is an optional argument but no contents.
if (body_pos > 0 && body_pos == size()) {
os << "}]~";
return_value = false;
}
if (!asdefault) {
column += endTeXParParams(bparams, os, runparams.moving_arg);
}
lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
return return_value;
}
namespace {
// checks, if newcol chars should be put into this line
// writes newline, if necessary.
void sgmlLineBreak(ostream & os, string::size_type & colcount,
string::size_type newcol)
{
colcount += newcol;
if (colcount > lyxrc.ascii_linelen) {
os << "\n";
colcount = newcol; // assume write after this call
}
}
enum PAR_TAG {
PAR_NONE=0,
TT = 1,
SF = 2,
BF = 4,
IT = 8,
SL = 16,
EM = 32
};
string tag_name(PAR_TAG const & pt) {
switch (pt) {
case PAR_NONE: return "!-- --";
case TT: return "tt";
case SF: return "sf";
case BF: return "bf";
case IT: return "it";
case SL: return "sl";
case EM: return "em";
}
return "";
}
inline
void operator|=(PAR_TAG & p1, PAR_TAG const & p2)
{
p1 = static_cast<PAR_TAG>(p1 | p2);
}
inline
void reset(PAR_TAG & p1, PAR_TAG const & p2)
{
p1 = static_cast<PAR_TAG>(p1 & ~p2);
}
} // anon
// Handle internal paragraph parsing -- layout already processed.
void Paragraph::simpleLinuxDocOnePar(Buffer const & buf,
ostream & os,
LyXFont const & outerfont,
OutputParams const & runparams,
lyx::depth_type /*depth*/) const
{
LyXLayout_ptr const & style = layout();
string::size_type char_line_count = 5; // Heuristic choice ;-)
// gets paragraph main font
LyXFont font_old;
bool desc_on;
if (style->labeltype == LABEL_MANUAL) {
font_old = style->labelfont;
desc_on = true;
} else {
font_old = style->font;
desc_on = false;
}
LyXFont::FONT_FAMILY family_type = LyXFont::ROMAN_FAMILY;
LyXFont::FONT_SERIES series_type = LyXFont::MEDIUM_SERIES;
LyXFont::FONT_SHAPE shape_type = LyXFont::UP_SHAPE;
bool is_em = false;
stack<PAR_TAG> tag_state;
// parsing main loop
for (pos_type i = 0; i < size(); ++i) {
PAR_TAG tag_close = PAR_NONE;
list < PAR_TAG > tag_open;
LyXFont const font = getFont(buf.params(), i, outerfont);
if (font_old.family() != font.family()) {
switch (family_type) {
case LyXFont::SANS_FAMILY:
tag_close |= SF;
break;
case LyXFont::TYPEWRITER_FAMILY:
tag_close |= TT;
break;
default:
break;
}
family_type = font.family();
switch (family_type) {
case LyXFont::SANS_FAMILY:
tag_open.push_back(SF);
break;
case LyXFont::TYPEWRITER_FAMILY:
tag_open.push_back(TT);
break;
default:
break;
}
}
if (font_old.series() != font.series()) {
switch (series_type) {
case LyXFont::BOLD_SERIES:
tag_close |= BF;
break;
default:
break;
}
series_type = font.series();
switch (series_type) {
case LyXFont::BOLD_SERIES:
tag_open.push_back(BF);
break;
default:
break;
}
}
if (font_old.shape() != font.shape()) {
switch (shape_type) {
case LyXFont::ITALIC_SHAPE:
tag_close |= IT;
break;
case LyXFont::SLANTED_SHAPE:
tag_close |= SL;
break;
default:
break;
}
shape_type = font.shape();
switch (shape_type) {
case LyXFont::ITALIC_SHAPE:
tag_open.push_back(IT);
break;
case LyXFont::SLANTED_SHAPE:
tag_open.push_back(SL);
break;
default:
break;
}
}
// handle <em> tag
if (font_old.emph() != font.emph()) {
if (font.emph() == LyXFont::ON) {
tag_open.push_back(EM);
is_em = true;
}
else if (is_em) {
tag_close |= EM;
is_em = false;
}
}
list < PAR_TAG > temp;
while (!tag_state.empty() && tag_close) {
PAR_TAG k = tag_state.top();
tag_state.pop();
os << "</" << tag_name(k) << '>';
if (tag_close & k)
reset(tag_close,k);
else
temp.push_back(k);
}
for(list< PAR_TAG >::const_iterator j = temp.begin();
j != temp.end(); ++j) {
tag_state.push(*j);
os << '<' << tag_name(*j) << '>';
}
for(list< PAR_TAG >::const_iterator j = tag_open.begin();
j != tag_open.end(); ++j) {
tag_state.push(*j);
os << '<' << tag_name(*j) << '>';
}
value_type c = getChar(i);
if (c == Paragraph::META_INSET) {
getInset(i)->linuxdoc(buf, os, runparams);
font_old = font;
continue;
}
if (style->latexparam() == "CDATA") {
// "TeX"-Mode on == > SGML-Mode on.
if (c != '\0')
os << c;
++char_line_count;
} else {
bool ws;
string str;
boost::tie(ws, str) = sgml::escapeChar(c);
if (ws && !isFreeSpacing()) {
// in freespacing mode, spaces are
// non-breaking characters
if (desc_on) { // if char is ' ' then...
++char_line_count;
sgmlLineBreak(os, char_line_count, 6);
os << "</tag>";
desc_on = false;
} else {
sgmlLineBreak(os, char_line_count, 1);
os << c;
}
} else {
os << str;
char_line_count += str.length();
}
}
font_old = font;
}
while (!tag_state.empty()) {
os << "</" << tag_name(tag_state.top()) << '>';
tag_state.pop();
}
// resets description flag correctly
if (desc_on) {
// <tag> not closed...
sgmlLineBreak(os, char_line_count, 6);
os << "</tag>";
}
}
bool Paragraph::emptyTag() const
{
for (pos_type i = 0; i < size(); ++i) {
if (isInset(i)) {
InsetBase const * inset = getInset(i);
InsetBase::Code lyx_code = inset->lyxCode();
if (lyx_code != InsetBase::TOC_CODE &&
lyx_code != InsetBase::INCLUDE_CODE &&
lyx_code != InsetBase::GRAPHICS_CODE &&
lyx_code != InsetBase::ERT_CODE &&
lyx_code != InsetBase::FLOAT_CODE &&
lyx_code != InsetBase::TABULAR_CODE) {
return false;
}
} else {
value_type c = getChar(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 (isInset(i)) {
InsetBase const * inset = getInset(i);
InsetBase::Code lyx_code = inset->lyxCode();
if (lyx_code == InsetBase::LABEL_CODE) {
string const id = static_cast<InsetCommand const *>(inset)->getContents();
return "id=\"" + sgml::cleanID(buf, runparams, id) + "\"";
}
}
}
return string();
}
pos_type Paragraph::getFirstWord(Buffer const & buf, ostream & os, OutputParams const & runparams) const
{
pos_type i;
for (i = 0; i < size(); ++i) {
if (isInset(i)) {
InsetBase const * inset = getInset(i);
inset->docbook(buf, os, runparams);
} else {
value_type c = getChar(i);
if (c == ' ')
break;
bool ws;
string str;
boost::tie(ws, str) = sgml::escapeChar(c);
os << str;
}
}
return i;
}
bool Paragraph::onlyText(Buffer const & buf, LyXFont const & outerfont, pos_type initial) const
{
LyXFont font_old;
for (pos_type i = initial; i < size(); ++i) {
LyXFont font = getFont(buf.params(), i, outerfont);
if (isInset(i))
return false;
if (i != initial && font != font_old)
return false;
font_old = font;
}
return true;
}
void Paragraph::simpleDocBookOnePar(Buffer const & buf,
ostream & os,
OutputParams const & runparams,
LyXFont const & outerfont,
pos_type initial) const
{
bool emph_flag = false;
LyXLayout_ptr const & style = layout();
LyXFont font_old =
style->labeltype == LABEL_MANUAL ? style->labelfont : style->font;
if (style->pass_thru && !onlyText(buf, outerfont, initial))
os << "]]>";
// parsing main loop
for (pos_type i = initial; i < size(); ++i) {
LyXFont font = getFont(buf.params(), i, outerfont);
// handle <emphasis> tag
if (font_old.emph() != font.emph()) {
if (font.emph() == LyXFont::ON) {
os << "<emphasis>";
emph_flag = true;
} else if (i != initial) {
os << "</emphasis>";
emph_flag = false;
}
}
if (isInset(i)) {
InsetBase const * inset = getInset(i);
inset->docbook(buf, os, runparams);
} else {
value_type c = getChar(i);
bool ws;
string str;
boost::tie(ws, str) = sgml::escapeChar(c);
if (style->pass_thru)
os << c;
else
os << str;
}
font_old = font;
}
if (emph_flag) {
os << "</emphasis>";
}
if (style->free_spacing)
os << '\n';
if (style->pass_thru && !onlyText(buf, outerfont, initial))
os << "<![CDATA[";
}
bool Paragraph::isNewline(pos_type pos) const
{
return isInset(pos)
&& getInset(pos)->lyxCode() == InsetBase::NEWLINE_CODE;
}
bool Paragraph::isLineSeparator(pos_type pos) const
{
value_type const c = getChar(pos);
return IsLineSeparatorChar(c)
|| (c == Paragraph::META_INSET && getInset(pos) &&
getInset(pos)->isLineSeparator());
}
/// Used by the spellchecker
bool Paragraph::isLetter(pos_type pos) const
{
if (isInset(pos))
return getInset(pos)->isLetter();
else {
value_type const c = getChar(pos);
return IsLetterChar(c) || IsDigit(c);
}
}
Language const *
Paragraph::getParLanguage(BufferParams const & bparams) const
{
if (!empty())
return getFirstFontSettings(bparams).language();
#ifdef WITH_WARNINGS
#warning FIXME we should check the prev par as well (Lgb)
#endif
return bparams.language;
}
bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
{
return lyxrc.rtl_support
&& getParLanguage(bparams)->RightToLeft()
&& ownerCode() != InsetBase::ERT_CODE;
}
void Paragraph::changeLanguage(BufferParams const & bparams,
Language const * from, Language const * to)
{
for (pos_type i = 0; i < size(); ++i) {
LyXFont font = getFontSettings(bparams, i);
if (font.language() == from) {
font.setLanguage(to);
setFont(i, font);
}
}
}
bool Paragraph::isMultiLingual(BufferParams const & bparams) const
{
Language const * doc_language = bparams.language;
Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
for (; cit != end; ++cit)
if (cit->font().language() != ignore_language &&
cit->font().language() != latex_language &&
cit->font().language() != doc_language)
return true;
return false;
}
// Convert the paragraph to a string.
// Used for building the table of contents
string const Paragraph::asString(Buffer const & buffer, bool label) const
{
OutputParams runparams;
return asString(buffer, runparams, label);
}
string const Paragraph::asString(Buffer const & buffer,
OutputParams const & runparams,
bool label) const
{
#if 0
string s;
if (label && !params().labelString().empty())
s += params().labelString() + ' ';
for (pos_type i = 0; i < size(); ++i) {
value_type c = getChar(i);
if (IsPrintable(c))
s += c;
else if (c == META_INSET &&
getInset(i)->lyxCode() == InsetBase::MATH_CODE) {
ostringstream os;
getInset(i)->plaintext(buffer, os, runparams);
s += subst(STRCONV(os.str()),'\n',' ');
}
}
return s;
#else
// This should really be done by the caller and not here.
string ret = asString(buffer, runparams, 0, size(), label);
return subst(ret, '\n', ' ');
#endif
}
string const Paragraph::asString(Buffer const & buffer,
pos_type beg, pos_type end, bool label) const
{
OutputParams const runparams;
return asString(buffer, runparams, beg, end, label);
}
string const Paragraph::asString(Buffer const & buffer,
OutputParams const & runparams,
pos_type beg, pos_type end, bool label) const
{
ostringstream os;
if (beg == 0 && label && !params().labelString().empty())
os << params().labelString() << ' ';
for (pos_type i = beg; i < end; ++i) {
value_type const c = getUChar(buffer.params(), i);
if (IsPrintable(c))
os << c;
else if (c == META_INSET)
getInset(i)->textString(buffer, os, runparams);
}
return os.str();
}
void Paragraph::setInsetOwner(InsetBase * inset)
{
pimpl_->inset_owner = inset;
}
void Paragraph::setContentsFromPar(Paragraph const & par)
{
pimpl_->setContentsFromPar(par);
}
void Paragraph::trackChanges(Change::Type type)
{
pimpl_->trackChanges(type);
}
void Paragraph::untrackChanges()
{
pimpl_->untrackChanges();
}
void Paragraph::cleanChanges()
{
pimpl_->cleanChanges();
}
Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
{
BOOST_ASSERT(empty() || pos < size());
return pimpl_->lookupChange(pos);
}
Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
{
BOOST_ASSERT(empty() || pos < size());
return pimpl_->lookupChangeFull(pos);
}
bool Paragraph::isChanged(pos_type start, pos_type end) const
{
return pimpl_->isChanged(start, end);
}
bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
{
return pimpl_->isChangeEdited(start, end);
}
void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
{
pimpl_->setChange(pos, type);
}
void Paragraph::markErased(bool erased)
{
pimpl_->markErased(erased);
}
void Paragraph::acceptChange(pos_type start, pos_type end)
{
return pimpl_->acceptChange(start, end);
}
void Paragraph::rejectChange(pos_type start, pos_type end)
{
return pimpl_->rejectChange(start, end);
}
int Paragraph::id() const
{
return pimpl_->id_;
}
LyXLayout_ptr const & Paragraph::layout() const
{
return layout_;
}
void Paragraph::layout(LyXLayout_ptr const & new_layout)
{
layout_ = new_layout;
}
InsetBase * Paragraph::inInset() const
{
return pimpl_->inset_owner;
}
InsetBase::Code Paragraph::ownerCode() const
{
return pimpl_->inset_owner
? pimpl_->inset_owner->lyxCode() : InsetBase::NO_CODE;
}
void Paragraph::clearContents()
{
text_.clear();
}
void Paragraph::setChar(pos_type pos, value_type c)
{
text_[pos] = c;
}
ParagraphParameters & Paragraph::params()
{
return pimpl_->params;
}
ParagraphParameters const & Paragraph::params() const
{
return pimpl_->params;
}
bool Paragraph::isFreeSpacing() const
{
if (layout()->free_spacing)
return true;
// for now we just need this, later should we need this in some
// other way we can always add a function to InsetBase too.
return ownerCode() == InsetBase::ERT_CODE;
}
bool Paragraph::allowEmpty() const
{
if (layout()->keepempty)
return true;
return ownerCode() == InsetBase::ERT_CODE;
}
Row & Paragraph::getRow(pos_type pos, bool boundary)
{
BOOST_ASSERT(!rows().empty());
// If boundary is set we should return the row on which
// the character before is inside.
if (pos > 0 && boundary)
--pos;
RowList::iterator rit = rows_.end();
RowList::iterator const begin = rows_.begin();
for (--rit; rit != begin && rit->pos() > pos; --rit)
;
return *rit;
}
Row const & Paragraph::getRow(pos_type pos, bool boundary) const
{
BOOST_ASSERT(!rows().empty());
// If boundary is set we should return the row on which
// the character before is inside.
if (pos > 0 && boundary)
--pos;
RowList::const_iterator rit = rows_.end();
RowList::const_iterator const begin = rows_.begin();
for (--rit; rit != begin && rit->pos() > pos; --rit)
;
return *rit;
}
size_t Paragraph::pos2row(pos_type pos) const
{
BOOST_ASSERT(!rows().empty());
RowList::const_iterator rit = rows_.end();
RowList::const_iterator const begin = rows_.begin();
for (--rit; rit != begin && rit->pos() > pos; --rit)
;
return rit - begin;
}
unsigned char Paragraph::transformChar(unsigned char c, pos_type pos) const
{
if (!Encodings::is_arabic(c))
if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
return c + (0xb0 - '0');
else
return c;
unsigned char const prev_char = pos > 0 ? getChar(pos - 1) : ' ';
unsigned char next_char = ' ';
for (pos_type i = pos + 1, end = size(); i < end; ++i) {
unsigned char const par_char = getChar(i);
if (!Encodings::IsComposeChar_arabic(par_char)) {
next_char = par_char;
break;
}
}
if (Encodings::is_arabic(next_char)) {
if (Encodings::is_arabic(prev_char) &&
!Encodings::is_arabic_special(prev_char))
return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
else
return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
} else {
if (Encodings::is_arabic(prev_char) &&
!Encodings::is_arabic_special(prev_char))
return Encodings::TransformChar(c, Encodings::FORM_FINAL);
else
return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
}
}
void Paragraph::dump() const
{
lyxerr << "Paragraph::dump: rows.size(): " << rows_.size() << endl;
for (size_t i = 0; i != rows_.size(); ++i) {
lyxerr << " row " << i << ": ";
rows_[i].dump();
}
}