/* This file is part of
 * ====================================================== 
 * 
 *           LyX, The Document Processor
 *
 *	     Copyright 1995 Matthias Ettrich
 *           Copyright 1995-1999 The LyX Team.
 *
 *           This file is Copyright 1996-1999
 *           Lars Gullik Bjønnes
 *
 * ====================================================== 
 */

// Change Log:
// =========== 
// 23/03/98   Heinrich Bauer (heinrich.bauer@t-mobil.de)
// Spots marked "changed Heinrich Bauer, 23/03/98" modified due to the
// following bug: dvi file export did not work after printing (or previewing)
// and vice versa as long as the same file was concerned. This happened
// every time the LyX-file was left unchanged between the two actions mentioned
// above.

#include <config.h>

#include <fstream>
#include <iomanip>
using std::ofstream;
using std::ifstream;
using std::fstream;
using std::ios;
using std::setw;


#include <cstdlib>
#include <unistd.h>
#include <sys/types.h>
#include <utime.h>

#ifdef __GNUG__
#pragma implementation "buffer.h"
#endif

#include "buffer.h"
#include "bufferlist.h"
#include "lyx_main.h"
#include "lyx_gui_misc.h"
#include "LyXAction.h"
#include "lyxrc.h"
#include "lyxlex.h"
#include "tex-strings.h"
#include "layout.h"
#include "lyx_cb.h"
#include "minibuffer.h"
#include "lyxfont.h"
#include "version.h"
#include "mathed/formulamacro.h"
#include "insets/lyxinset.h"
#include "insets/inseterror.h"
#include "insets/insetlabel.h"
#include "insets/insetref.h"
#include "insets/inseturl.h"
#include "insets/insetinfo.h"
#include "insets/insetquotes.h"
#include "insets/insetlatexaccent.h"
#include "insets/insetbib.h" 
#include "insets/insetindex.h" 
#include "insets/insetinclude.h"
#include "insets/insettoc.h"
#include "insets/insetlof.h"
#include "insets/insetlot.h"
#include "insets/insetloa.h"
#include "insets/insetparent.h"
#include "insets/insetspecialchar.h"
#include "insets/figinset.h"
#include "insets/insettext.h"
#include "insets/insetert.h"
#include "insets/insetgraphics.h"
#include "support/filetools.h"
#include "support/path.h"
#include "LaTeX.h"
#include "Literate.h"
#include "Chktex.h"
#include "LyXView.h"
#include "debug.h"
#include "LaTeXFeatures.h"
#include "support/syscall.h"
#include "support/lyxlib.h"
#include "support/FileInfo.h"
#include "lyxtext.h"
#include "gettext.h"

// Uncomment this line to enable a workaround for the weird behaviour
// of the cursor between a displayed inset and last character
// at the upper line. (Alejandro 20.9.96)
// #define BREAK_BEFORE_INSET

/* Lars, when changing this file sometime in the future to a list,
 * please check out the figinsets-sideeffects described at the
 * beginning of figinset.C    Matthias (04.07.1996)
 */


// all these externs should eventually be removed.
extern BufferList bufferlist;

extern void MenuExport(Buffer *, string const &);
extern LyXAction lyxaction;


static const float LYX_FORMAT = 2.15;

extern int tex_code_break_column;

extern void FreeUpdateTimer();


Buffer::Buffer(string const & file, LyXRC * lyxrc, bool ronly)
{
	lyxerr[Debug::INFO] << "Buffer::Buffer()" << endl;
	filename = file;
	filepath = OnlyPath(file);
	paragraph = 0;
	lyx_clean = true;
	bak_clean = true;
	dvi_clean_orgd = false;  // Heinrich Bauer, 23/03/98
	dvi_clean_tmpd = false;  // Heinrich Bauer, 23/03/98
	dep_clean = 0;
	read_only = ronly;
	users = 0;
	lyxvc.buffer(this);
	if (read_only || (lyxrc && lyxrc->use_tempdir)) {
		tmppath = CreateBufferTmpDir();
	} else tmppath.clear();
}


Buffer::~Buffer()
{
	lyxerr[Debug::INFO] << "Buffer::~Buffer()" << endl;
	// here the buffer should take care that it is
	// saved properly, before it goes into the void.

	// make sure that views using this buffer
	// forgets it.
	if (users)
		users->buffer(0);
	
	if (!tmppath.empty()) {
		DestroyBufferTmpDir(tmppath);
	}
	
	LyXParagraph * par = paragraph;
	LyXParagraph * tmppar;
	while (par) {
		tmppar = par->next;
		delete par;
		par = tmppar;
	}
	paragraph = 0;
}


bool Buffer::saveParamsAsDefaults()
{
	string fname = AddName(AddPath(user_lyxdir, "templates/"),
				"defaults.lyx");
	Buffer defaults = Buffer(fname);
	
	// Use the current buffer's parameters as default
	defaults.params = params;
	
	// add an empty paragraph. Is this enough?
	defaults.paragraph = new LyXParagraph;

	return defaults.writeFile(defaults.filename, false);
}


/// Update window titles of all users
// Should work on a list
void Buffer::updateTitles() const
{
	if (users) users->owner()->updateWindowTitle();
}


/// Reset autosave timer of all users
// Should work on a list
void Buffer::resetAutosaveTimers() const
{
	if (users) users->owner()->resetAutosaveTimer();
}


void Buffer::fileName(string const & newfile)
{
	filename = MakeAbsPath(newfile);
	filepath = OnlyPath(filename);
	setReadonly(IsFileWriteable(filename) == 0);
	updateTitles();
}


// candidate for move to BufferView
// (at least some parts in the beginning of the func)
//
// Uwe C. Schroeder
// changed to be public and have one parameter
// if par = 0 normal behavior
// else insert behavior
// Returns false if "\the_end" is not read for formats >= 2.13. (Asger)
bool Buffer::readLyXformat2(LyXLex & lex, LyXParagraph * par)
{
	string tmptok;
	Inset * inset = 0;
	int pos = 0;
	int tmpret, tmpret2;
	char depth = 0; // signed or unsigned?
	LyXParagraph::footnote_flag footnoteflag = LyXParagraph::NO_FOOTNOTE;
	LyXParagraph::footnote_kind footnotekind = LyXParagraph::FOOTNOTE;
	bool the_end_read = false;

	LyXParagraph * return_par = 0;
	LyXFont font(LyXFont::ALL_INHERIT);

	// If we are inserting, we cheat and get a token in advance
	bool has_token = false;
	string pretoken;

	if(!par) {
		par = new LyXParagraph;
	} else {
		users->text->BreakParagraph();
		return_par = users->text->FirstParagraph();
		pos = 0;
		markDirty();
		// We don't want to adopt the parameters from the
		// document we insert, so we skip until the text begins:
		while (lex.IsOK()) {
			lex.nextToken();
			pretoken = lex.GetString();
			if (pretoken == "\\layout") {
				has_token = true;
				break;
			}
		}
	}

	while (lex.IsOK()) {
		if (has_token) {
			has_token = false;
		} else {
			lex.nextToken();
			pretoken = lex.GetString();
		}

		// Profiling show this should give a lot: (Asger)
		string const token = pretoken;

		if (token.empty())
			continue;
		else if (token[0] != '\\') {
			int n = token.length();
			for (int i = 0; i < n; ++i) {
				par->InsertChar(pos, token[i]);
				par->SetFont(pos, font);
				++pos;
			}
		} else if (token == "\\i") {
			inset = new InsetLatexAccent;
			inset->Read(lex);
			par->InsertChar(pos, LyXParagraph::META_INSET); 
			
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\layout") {
			if (!return_par) 
				return_par = par;
			else {
				par->text.resize(par->text.size());
				par = new LyXParagraph(par);
			}
			pos = 0;
			lex.EatLine();
			string layoutname = lex.GetString();
			pair<bool, LyXTextClass::LayoutList::size_type> pp
				= textclasslist.NumberOfLayout(params.textclass,
								layoutname);
			if (pp.first) {
				par->layout = pp.second;
			} else { // layout not found
				// use default layout "Standard" (0)
				par->layout = 0;
			}
			// Test whether the layout is obsolete.
			LyXLayout const & layout =
				textclasslist.Style(params.textclass,
						    par->layout); 
			if (!layout.obsoleted_by().empty())
				par->layout = 
					textclasslist.NumberOfLayout(params.textclass, 
								layout.obsoleted_by()).second;
			par->footnoteflag = footnoteflag;
			par->footnotekind = footnotekind;
			par->depth = depth;
			font = LyXFont(LyXFont::ALL_INHERIT);
		} else if (token == "\\end_float") {
			if (!return_par) 
				return_par = par;
			else {
				par->text.resize(par->text.size());
				par = new LyXParagraph(par);
			}
			footnotekind = LyXParagraph::FOOTNOTE;
			footnoteflag = LyXParagraph::NO_FOOTNOTE;
			pos = 0;
			lex.EatLine();
			par->layout = LYX_DUMMY_LAYOUT;
			font = LyXFont(LyXFont::ALL_INHERIT);
		} else if (token == "\\begin_float") {
			tmpret = lex.FindToken(string_footnotekinds);
			if (tmpret == -1) ++tmpret;
			if (tmpret != LYX_LAYOUT_DEFAULT) 
				footnotekind = static_cast<LyXParagraph::footnote_kind>(tmpret); // bad
			if (footnotekind == LyXParagraph::FOOTNOTE
			    || footnotekind == LyXParagraph::MARGIN)
				footnoteflag = LyXParagraph::CLOSED_FOOTNOTE;
			else 
				footnoteflag = LyXParagraph::OPEN_FOOTNOTE;
		} else if (token == "\\begin_deeper") {
			++depth;
		} else if (token == "\\end_deeper") {
			if (!depth) {
				lex.printError("\\end_deeper: "
					       "depth is already null");
			}
			else
				--depth;
		} else if (token == "\\begin_preamble") {
			params.readPreamble(lex);
		} else if (token == "\\textclass") {
			lex.EatLine();
			pair<bool, LyXTextClassList::size_type> pp = 
				textclasslist.NumberOfClass(lex.GetString());
			if (pp.first) {
				params.textclass = pp.second;
			} else {
				lex.printError("Unknown textclass `$$Token'");
				params.textclass = 0;
			}
			if (!textclasslist.Load(params.textclass)) {
				// if the textclass wasn't loaded properly
				// we need to either substitute another
				// or stop loading the file.
				// I can substitute but I don't see how I can
				// stop loading... ideas??  ARRae980418
				WriteAlert(_("Textclass Loading Error!"),
				           string(_("Can't load textclass ")) +
					   textclasslist.NameOfClass(params.textclass),
					   _("-- substituting default"));
				params.textclass = 0;
			}
		} else if (token == "\\options") {
			lex.EatLine();
			params.options = lex.GetString();
		} else if (token == "\\language") {
			params.readLanguage(lex);    
		} else if (token == "\\fontencoding") {
			lex.EatLine();
		} else if (token == "\\inputencoding") {
			lex.EatLine();
			params.inputenc = lex.GetString();
		} else if (token == "\\graphics") {
			params.readGraphicsDriver(lex);
		} else if (token == "\\fontscheme") {
			lex.EatLine();
			params.fonts = lex.GetString();
		} else if (token == "\\noindent") {
			par->noindent = true;
		} else if (token == "\\fill_top") {
			par->added_space_top = VSpace(VSpace::VFILL);
		} else if (token == "\\fill_bottom") {
			par->added_space_bottom = VSpace(VSpace::VFILL);
		} else if (token == "\\line_top") {
			par->line_top = true;
		} else if (token == "\\line_bottom") {
			par->line_bottom = true;
		} else if (token == "\\pagebreak_top") {
			par->pagebreak_top = true;
		} else if (token == "\\pagebreak_bottom") {
			par->pagebreak_bottom = true;
		} else if (token == "\\start_of_appendix") {
			par->start_of_appendix = true;
		} else if (token == "\\paragraph_separation") {
			tmpret = lex.FindToken(string_paragraph_separation);
			if (tmpret == -1) ++tmpret;
			if (tmpret != LYX_LAYOUT_DEFAULT) 
				params.paragraph_separation =
					static_cast<BufferParams::PARSEP>(tmpret);
		} else if (token == "\\defskip") {
			lex.nextToken();
			params.defskip = VSpace(lex.GetString());
		} else if (token == "\\no_isolatin1") { // obsolete
			lex.nextToken();
		} else if (token == "\\no_babel") { // obsolete
			lex.nextToken();
		} else if (token == "\\no_epsfig") { // obsolete
			lex.nextToken();
		} else if (token == "\\epsfig") { // obsolete
			// Indeed it is obsolete, but we HAVE to be backwards
			// compatible until 0.14, because otherwise all figures
			// in existing documents are irretrivably lost. (Asger)
			params.readGraphicsDriver(lex);
		} else if (token == "\\quotes_language") {
			tmpret = lex.FindToken(string_quotes_language);
			if (tmpret == -1) ++tmpret;
			if (tmpret != LYX_LAYOUT_DEFAULT) {
				InsetQuotes::quote_language tmpl = 
					InsetQuotes::EnglishQ;
				switch(tmpret) {
				case 0:
					tmpl = InsetQuotes::EnglishQ;
					break;
				case 1:
					tmpl = InsetQuotes::SwedishQ;
					break;
				case 2:
					tmpl = InsetQuotes::GermanQ;
					break;
				case 3:
					tmpl = InsetQuotes::PolishQ;
					break;
				case 4:
					tmpl = InsetQuotes::FrenchQ;
					break;
				case 5:
					tmpl = InsetQuotes::DanishQ;
					break;	
				}
				params.quotes_language = tmpl;
			}
		} else if (token == "\\quotes_times") {
			lex.nextToken();
			switch(lex.GetInteger()) {
			case 1: 
				params.quotes_times = InsetQuotes::SingleQ; 
				break;
			case 2: 
				params.quotes_times = InsetQuotes::DoubleQ; 
				break;
			}
                } else if (token == "\\papersize") {
                                tmpret = lex.FindToken(string_papersize);
			if (tmpret == -1)
                                ++tmpret;
                        else
                                params.papersize2 = tmpret;
                } else if (token == "\\paperpackage") {
			tmpret = lex.FindToken(string_paperpackages);
			if (tmpret == -1) {
                                ++tmpret;
                                params.paperpackage = BufferParams::PACKAGE_NONE;
                        } else
                                params.paperpackage = tmpret;
		} else if (token == "\\use_geometry") {
			lex.nextToken();
			params.use_geometry = lex.GetInteger();
		} else if (token == "\\use_amsmath") {
			lex.nextToken();
			params.use_amsmath = lex.GetInteger();
		} else if (token == "\\paperorientation") {
			tmpret = lex.FindToken(string_orientation);
			if (tmpret == -1) ++tmpret;
			if (tmpret != LYX_LAYOUT_DEFAULT) 
				params.orientation = static_cast<BufferParams::PAPER_ORIENTATION>(tmpret);
		} else if (token == "\\paperwidth") {
			lex.next();
			params.paperwidth = lex.GetString();
		} else if (token == "\\paperheight") {
			lex.next();
			params.paperheight = lex.GetString();
		} else if (token == "\\leftmargin") {
			lex.next();
			params.leftmargin = lex.GetString();
		} else if (token == "\\topmargin") {
			lex.next();
			params.topmargin = lex.GetString();
		} else if (token == "\\rightmargin") {
			lex.next();
			params.rightmargin = lex.GetString();
		} else if (token == "\\bottommargin") {
			lex.next();
			params.bottommargin = lex.GetString();
		} else if (token == "\\headheight") {
			lex.next();
			params.headheight = lex.GetString();
		} else if (token == "\\headsep") {
			lex.next();
			params.headsep = lex.GetString();
		} else if (token == "\\footskip") {
			lex.next();
			params.footskip = lex.GetString();
		} else if (token == "\\paperfontsize") {
			lex.nextToken();
			params.fontsize = strip(lex.GetString());
		} else if (token == "\\papercolumns") {
			lex.nextToken();
			params.columns = lex.GetInteger();
		} else if (token == "\\papersides") {
			lex.nextToken();
			switch(lex.GetInteger()) {
			default:
			case 1: params.sides = LyXTextClass::OneSide; break;
			case 2: params.sides = LyXTextClass::TwoSides; break;
			}
		} else if (token == "\\paperpagestyle") {
		        lex.nextToken();
			params.pagestyle = strip(lex.GetString());
		} else if (token == "\\bullet") {
			lex.nextToken();
			int index = lex.GetInteger();
			lex.nextToken();
			int temp_int = lex.GetInteger();
			params.user_defined_bullets[index].setFont(temp_int);
			params.temp_bullets[index].setFont(temp_int);
			lex.nextToken();
			temp_int = lex.GetInteger();
			params.user_defined_bullets[index].setCharacter(temp_int);
			params.temp_bullets[index].setCharacter(temp_int);
			lex.nextToken();
			temp_int = lex.GetInteger();
			params.user_defined_bullets[index].setSize(temp_int);
			params.temp_bullets[index].setSize(temp_int);
			lex.nextToken();
			string temp_str = lex.GetString();
			if (temp_str != "\\end_bullet") {
				// this element isn't really necessary for
				// parsing but is easier for humans
				// to understand bullets. Put it back and
				// set a debug message?
				lex.printError("\\end_bullet expected, got" + temp_str);
				//how can I put it back?
			}
		} else if (token == "\\bulletLaTeX") {
			lex.nextToken();
			int index = lex.GetInteger();
			lex.next();
			string temp_str = lex.GetString(), sum_str;
			while (temp_str != "\\end_bullet") {
				// this loop structure is needed when user
				// enters an empty string since the first
				// thing returned will be the \\end_bullet
				// OR
				// if the LaTeX entry has spaces. Each element
				// therefore needs to be read in turn
				sum_str += temp_str;
				lex.next();
				temp_str = lex.GetString();
			}
			params.user_defined_bullets[index].setText(sum_str);
			params.temp_bullets[index].setText(sum_str);
		} else if (token == "\\secnumdepth") {
			lex.nextToken();
			params.secnumdepth = lex.GetInteger();
		} else if (token == "\\tocdepth") {
			lex.nextToken();
			params.tocdepth = lex.GetInteger();
		} else if (token == "\\baselinestretch") { // obsolete
			lex.nextToken(); // should not be used directly
			// anymore.
			// Will probably keep a kind of support just for
			// compability.
			params.spacing.set(Spacing::Other, lex.GetFloat());
		} else if (token == "\\spacing") {
			lex.next();
			string tmp = strip(lex.GetString());
			if (tmp == "single") {
				params.spacing.set(Spacing::Single);
			} else if (tmp == "onehalf") {
				params.spacing.set(Spacing::Onehalf);
			} else if (tmp == "double") {
				params.spacing.set(Spacing::Double);
			} else if (tmp == "other") {
				lex.next();
				params.spacing.set(Spacing::Other,
						   lex.GetFloat());
			} else {
				lex.printError("Unknown spacing token: '$$Token'");
			}
		} else if (token == "\\float_placement") {
			lex.nextToken();
			params.float_placement = lex.GetString();
		} else if (token == "\\cursor") { // obsolete
			// this is obsolete, so we just skip it.
			lex.nextToken();
		} else if (token == "\\family") { 
			lex.next();
			font.setLyXFamily(lex.GetString());
		} else if (token == "\\series") {
			lex.next();
			font.setLyXSeries(lex.GetString());
		} else if (token == "\\shape") {
			lex.next();
			font.setLyXShape(lex.GetString());
		} else if (token == "\\size") {
			lex.next();
			font.setLyXSize(lex.GetString());
		} else if (token == "\\latex") {
			lex.next();
			string tok = lex.GetString();
			// This is dirty, but gone with LyX3. (Asger)
			if (tok == "no_latex")
				font.setLatex(LyXFont::OFF);
			else if (tok == "latex")
				font.setLatex(LyXFont::ON);
			else if (tok == "default")
				font.setLatex(LyXFont::INHERIT);
			else
				lex.printError("Unknown LaTeX font flag "
					       "`$$Token'");
		} else if (token == "\\direction") {
			lex.next();
			string tok = lex.GetString();
			if (tok == "ltr")
				font.setDirection(LyXFont::LTR_DIR);
			else if (tok == "rtl")
				font.setDirection(LyXFont::RTL_DIR);
			else if (tok == "default")
				font.setDirection(LyXFont::INHERIT_DIR);
			else
				lex.printError("Unknown font flag "
					       "`$$Token'");
		} else if (token == "\\emph") {
			lex.next();
			font.setEmph(font.setLyXMisc(lex.GetString()));
		} else if (token == "\\bar") {
			lex.next();
			string tok = lex.GetString();
			// This is dirty, but gone with LyX3. (Asger)
			if (tok == "under")
				font.setUnderbar(LyXFont::ON);
			else if (tok == "no")
				font.setUnderbar(LyXFont::OFF);
			else if (tok == "default")
				font.setUnderbar(LyXFont::INHERIT);
			else
				lex.printError("Unknown bar font flag "
					       "`$$Token'");
		} else if (token == "\\noun") {
			lex.next();
			font.setNoun(font.setLyXMisc(lex.GetString()));
		} else if (token == "\\color") {
			lex.next();
			font.setLyXColor(lex.GetString());
		} else if (token == "\\align") {
			tmpret = lex.FindToken(string_align);
			if (tmpret == -1) ++tmpret;
			if (tmpret != LYX_LAYOUT_DEFAULT) { // tmpret != 99 ???
				tmpret2 = 1;
				for (; tmpret > 0; --tmpret)
					tmpret2 = tmpret2 * 2;
				par->align = LyXAlignment(tmpret2);
			}
		} else if (token == "\\added_space_top") {
			lex.nextToken();
			par->added_space_top = lex.GetString();
		} else if (token == "\\added_space_bottom") {
			lex.nextToken();
			par->added_space_bottom = lex.GetString();
                } else if (token == "\\pextra_type") {
                        lex.nextToken();
                        par->pextra_type = lex.GetInteger();
                } else if (token == "\\pextra_width") {
                        lex.nextToken();
			par->pextra_width = lex.GetString();
                } else if (token == "\\pextra_widthp") {
                        lex.nextToken();
			par->pextra_widthp = lex.GetString();
                } else if (token == "\\pextra_alignment") {
                        lex.nextToken();
                        par->pextra_alignment = lex.GetInteger();
                } else if (token == "\\pextra_hfill") {
                        lex.nextToken();
                        par->pextra_hfill = lex.GetInteger();
                } else if (token == "\\pextra_start_minipage") {
                        lex.nextToken();
                        par->pextra_start_minipage = lex.GetInteger();
		} else if (token == "\\labelwidthstring") {
			lex.EatLine();
			par->labelwidthstring = lex.GetString();
			/* do not delete this token, it is still needed! */ 
		} else if (token == "\\end_inset") {
			/* simple ignore this. The insets do not have
			 *  to read this */
			// but insets should read it, it is a part of
			//the inset isn't it? Lgb.
		} else if (token == "\\begin_inset") {
			lex.next();
			tmptok = lex.GetString();
			/* test the different insets */ 
			if (tmptok == "Quotes") {
				inset = new InsetQuotes;
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "\\i") {
				inset = new InsetLatexAccent;
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "FormulaMacro") {
				inset = new InsetFormulaMacro;
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "Formula") {
				inset = new InsetFormula;
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "Figure") {
				inset = new InsetFig(100, 100, this);
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "Info") {
				inset = new InsetInfo;
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "Include") {
				inset = new InsetInclude(string(), this);
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "ERT") {
				inset = new InsetERT(this);
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "Text") {
				inset = new InsetText(this);
				inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
				++pos;
			} else if (tmptok == "GRAPHICS") {
				inset = new InsetGraphics;
				//inset->Read(lex);
				par->InsertChar(pos, LyXParagraph::META_INSET);
				par->InsertInset(pos, inset);
				par->SetFont(pos, font);
			} else if (tmptok == "LatexCommand") {
				InsetCommand inscmd;
				inscmd.Read(lex);
				if (inscmd.getCmdName() == "cite") {
					inset = new InsetCitation(inscmd.getContents(), inscmd.getOptions());
				} else if (inscmd.getCmdName() == "bibitem") {
					lex.printError("Wrong place for bibitem");
					inset = inscmd.Clone();
				} else if (inscmd.getCmdName() == "BibTeX") {
					inset = new InsetBibtex(inscmd.getContents(), inscmd.getOptions(), this);
				} else if (inscmd.getCmdName() == "index") {
					inset = new InsetIndex(inscmd.getContents());
				} else if (inscmd.getCmdName() == "include") {
					inset = new InsetInclude(inscmd.getContents(), this);
				} else if (inscmd.getCmdName() == "label") {
					inset = new InsetLabel(inscmd.getCommand());
				} else if (inscmd.getCmdName() == "url"
					   || inscmd.getCmdName() == "htmlurl") {
					inset = new InsetUrl(inscmd.getCommand());
				} else if (inscmd.getCmdName() == "ref"
					   || inscmd.getCmdName() == "pageref") {
					if (!inscmd.getOptions().empty() || !inscmd.getContents().empty()) {
						inset = new InsetRef(inscmd, this);
					}
#warning Verify that this else clause is still needed. (Lgb)
#if 0
					// This condition comes from a
					// temporary solution to the latexdel
					// ref inset that was transformed to
					// an empty ref inset plus the body
					// surronded by latexdel insets
					else {
						string cont, opt, tmptmptok, cmdname;
						lex.next();
						while(lex.IsOK() && lex.GetString() != "\\end_inset" ) {
							lex.next();
						}
						lex.next();
						while(lex.IsOK()) {
							tmptmptok = lex.GetString();
							if(tmptmptok[0] == '\\') {
								if( tmptmptok == "\\backslash")
									opt += '\\';
								else
									break;
							}
							else
								opt += tmptmptok;
							opt += ' ';
							lex.next();
						}
						while(lex.IsOK() && lex.GetString() != "\\end_inset" ) {
							lex.next();
						}
						lex.next();
						while(lex.IsOK()) {
							tmptmptok = lex.GetString();
							if(tmptmptok[0] == '\\') {
								if( tmptmptok == "\\backslash")
									cont += '\\';
								else
									break;
							}
							else
								cont += tmptmptok;
							cont += ' ';
							lex.next();
						}
						while(lex.IsOK() && lex.GetString() != "\\end_inset" ) {
							lex.next();
						}

						cont = strip(cont);
						opt = strip(opt);
						cmdname =  "\\" + inscmd.getCmdName();
						cmdname += "["  + cont  + "]";
						cmdname += "{"  + opt + "}";
						inset = new InsetRef(cmdname, this);
					}
#endif
				} else if (inscmd.getCmdName() == "tableofcontents") {
					inset = new InsetTOC(this);
				} else if (inscmd.getCmdName() == "listoffigures") {
					inset = new InsetLOF(this);
				} else if (inscmd.getCmdName() == "listofalgorithms") {
					inset = new InsetLOA(this);
				} else if (inscmd.getCmdName() == "listoftables") {
					inset = new InsetLOT(this);
				} else if (inscmd.getCmdName() == "printindex") {
					inset = new InsetPrintIndex(this);
				} else if (inscmd.getCmdName() == "lyxparent") {
					inset = new InsetParent(inscmd.getContents(), this);
				}
			       
				if (inset) {
					par->InsertChar(pos, LyXParagraph::META_INSET);
					par->InsertInset(pos, inset);
					par->SetFont(pos, font);
					++pos;
				}
			}
		} else if (token == "\\InsetQuotes") {
			inset = new InsetQuotes;
			inset->Read(lex);
			par->InsertChar(pos, LyXParagraph::META_INSET); 
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\InsetFormula") {
			inset = new InsetFormula;
			inset->Read(lex);
			par->InsertChar(pos, LyXParagraph::META_INSET); 
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\SpecialChar") {
			inset = new InsetSpecialChar;
			inset->Read(lex);
			par->InsertChar(pos, LyXParagraph::META_INSET); 
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\Figure") {
			inset = new InsetFig(100, 100, this);
			inset->Read(lex);
			par->InsertChar(pos, LyXParagraph::META_INSET); 
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\newline") { // soon obsolete
#if 1
			par->InsertChar(pos, LyXParagraph::META_NEWLINE);
			par->SetFont(pos, font);
#else
			inset = new InsetSpecialChar(InsetSpecialChar::NEWLINE);
			par->InsertChar(pos, LyXParagraph::META_INSET);
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
#endif
			++pos;
		} else if (token == "\\LyXTable") {
			par->table = new LyXTable(lex);
		} else if (token == "\\hfill") {
			par->InsertChar(pos, LyXParagraph::META_HFILL);
			par->SetFont(pos, font);
			++pos;
		} else if (token == "\\protected_separator") { // obsolete
#if 1
			inset = new InsetSpecialChar(InsetSpecialChar::PROTECTED_SEPARATOR);
			par->InsertChar(pos, LyXParagraph::META_INSET);
			par->InsertInset(pos, inset);
			par->SetFont(pos, font);
#else
			par->InsertChar(pos, LyXParagraph::META_PROTECTED_SEPARATOR);
			par->SetFont(pos, font);
#endif
			++pos;
		} else if (token == "\\bibitem") {  // ale970302
		        if (!par->bibkey)
				par->bibkey = new InsetBibKey;
		        par->bibkey->Read(lex);		        
		}else if (token == "\\backslash") {
			par->InsertChar(pos, '\\');
			par->SetFont(pos, font);
			++pos;
		}else if (token == "\\the_end") {
			the_end_read = true;
		} else {
			// This should be insurance for the future: (Asger)
			lex.printError("Unknown token `$$Token'. "
				       "Inserting as text.");
			int n = token.length();
			for (int i = 0; i < n; ++i) {
				par->InsertChar(pos, token[i]);
				par->SetFont(pos, font);
				++pos;
			}
		}
	}
   
	if (!return_par)
		return_par = par;

	paragraph = return_par;
	
	return the_end_read;
}


bool Buffer::readFile(LyXLex & lex, LyXParagraph * par)
{
	string token;

	if (lex.IsOK()) {
		lex.next();
		token = lex.GetString();
		if (token == "\\lyxformat") { // the first token _must_ be...
			lex.next();
			format = lex.GetFloat();
			if (format > 1) {
				if (LYX_FORMAT - format > 0.05) {
					printf(_("Warning: need lyxformat %.2f but found %.2f\n"),
					       LYX_FORMAT, format);
				}
				if (format - LYX_FORMAT > 0.05) {
					printf(_("ERROR: need lyxformat %.2f but found %.2f\n"),
					       LYX_FORMAT, format);
				}
				bool the_end = readLyXformat2(lex, par);
				// Formats >= 2.13 support "\the_end" marker
				if (format < 2.13)
					the_end = true;

				setPaperStuff();

				if (!the_end)
					WriteAlert(_("Warning!"),
						   _("Reading of document is not complete"),
						   _("Maybe the document is truncated"));
				// We simulate a safe reading anyways to allow
				// users to take the chance... (Asger)
				return true;
			} // format < 1
			else {
				WriteAlert(_("ERROR!"),
					   _("Old LyX file format found. "
					     "Use LyX 0.10.x to read this!"));
				return false;
			}

		} else { // "\\lyxformat" not found
			WriteAlert(_("ERROR!"), _("Not a LyX file!"));
		}
	} else
		WriteAlert(_("ERROR!"), _("Unable to read file!"));
	return false;
}
	    	    


// Should probably be moved to somewhere else: BufferView? LyXView?
bool Buffer::save(bool makeBackup) const
{
	// We don't need autosaves in the immediate future. (Asger)
	resetAutosaveTimers();

	// make a backup
	if (makeBackup) {
		string s = fileName() + '~';
		// Rename is the wrong way of making a backup,
		// this is the correct way.
		/* truss cp fil fil2:
		   lstat("LyXVC3.lyx", 0xEFFFF898)                 Err#2 ENOENT
		   stat("LyXVC.lyx", 0xEFFFF688)                   = 0
		   open("LyXVC.lyx", O_RDONLY)                     = 3
		   open("LyXVC3.lyx", O_WRONLY|O_CREAT|O_TRUNC, 0600) = 4
		   fstat(4, 0xEFFFF508)                            = 0
		   fstat(3, 0xEFFFF508)                            = 0
		   read(3, " # T h i s   f i l e   w".., 8192)     = 5579
		   write(4, " # T h i s   f i l e   w".., 5579)    = 5579
		   read(3, 0xEFFFD4A0, 8192)                       = 0
		   close(4)                                        = 0
		   close(3)                                        = 0
		   chmod("LyXVC3.lyx", 0100644)                    = 0
		   lseek(0, 0, SEEK_CUR)                           = 46440
		   _exit(0)
		*/

		// Should proabaly have some more error checking here.
		// Should be cleaned up in 0.13, at least a bit.
		// Doing it this way, also makes the inodes stay the same.
		// This is still not a very good solution, in particular we
		// might loose the owner of the backup.
		FileInfo finfo(fileName());
		if (finfo.exist()) {
			mode_t fmode = finfo.getMode();
			struct utimbuf * times = new struct utimbuf;

			times->actime = finfo.getAccessTime();
			times->modtime = finfo.getModificationTime();
			ifstream ifs(fileName().c_str());
			ofstream ofs(s.c_str(), ios::out|ios::trunc);
			if (ifs && ofs) {
				ofs << ifs.rdbuf();
				ifs.close();
				ofs.close();
				::chmod(s.c_str(), fmode);
				
				if (::utime(s.c_str(), times)) {
					lyxerr << "utime error." << endl;
				}
			} else {
				lyxerr << "LyX was not able to make "
					"backupcopy. Beware." << endl;
			}
			delete times;
		}
	}
	
	if (writeFile(fileName(), false)) {
		markLyxClean();

		// now delete the autosavefile
		string a = OnlyPath(fileName());
		a += '#';
		a += OnlyFilename(fileName());
		a += '#';
		FileInfo fileinfo(a);
		if (fileinfo.exist()) {
			if (::remove(a.c_str()) != 0) {
				WriteFSAlert(_("Could not delete "
					       "auto-save file!"), a);
			}
		}
	} else {
		// Saving failed, so backup is not backup
		if (makeBackup) {
			string s = fileName() + '~';
			::rename(s.c_str(), fileName().c_str());
		}
		return false;
	}
	return true;
}


// Returns false if unsuccesful
bool Buffer::writeFile(string const & fname, bool flag) const
{
	// if flag is false writeFile will not create any GUI
	// warnings, only cerr.
	// Needed for autosave in background or panic save (Matthias 120496)

	if (read_only && (fname == filename)) {
		// Here we should come with a question if we should
		// perform the write anyway.
		if (flag)
			lyxerr << _("Error! Document is read-only: ")
			       << fname << endl;
		else
			WriteAlert(_("Error! Document is read-only: "),
				   fname);
		return false;
	}

	FileInfo finfo(fname);
	if (finfo.exist() && !finfo.writable()) {
		// Here we should come with a question if we should
		// try to do the save anyway. (i.e. do a chmod first)
		if (flag)
			lyxerr << _("Error! Cannot write file: ")
			       << fname << endl;
		else
			WriteFSAlert(_("Error! Cannot write file: "),
				     fname);
		return false;
	}

	ofstream ofs(fname.c_str());
	if (!ofs) {
		if (flag)
			lyxerr << _("Error! Cannot open file: ")
			       << fname << endl;
		else
			WriteFSAlert(_("Error! Cannot open file: "),
				     fname);
		return false;
	}
	// The top of the file should not be written by params.

	// write out a comment in the top of the file
	ofs << '#' << LYX_DOCVERSION 
	    << " created this file. For more info see http://www.lyx.org/\n";
	ofs.setf(ios::showpoint|ios::fixed);
	ofs.precision(2);
	ofs << "\\lyxformat " << setw(4) <<  LYX_FORMAT << "\n";

	// now write out the buffer paramters.
	params.writeFile(ofs);

	char footnoteflag = 0;
	char depth = 0;

	// this will write out all the paragraphs
	// using recursive descent.
	paragraph->writeFile(ofs, params, footnoteflag, depth);

	// Write marker that shows file is complete
	ofs << "\n\\the_end" << endl;
	ofs.close();
	// how to check if close went ok?
	return true;
}


void Buffer::writeFileAscii(string const & fname, int linelen) 
{
	LyXFont font1, font2;
	Inset * inset;
	char c, footnoteflag = 0, depth = 0;
	string tmp;
	LyXParagraph::size_type i;
	int j, h, ltype = 0, ltype_depth = 0,
		* clen = 0, actcell = 0, actpos = 0, cell = 0, cells = 0,
	        currlinelen = 0;
	long fpos = 0;
	bool ref_printed = false;

	ofstream ofs(fname.c_str());
	if (!ofs) {
		WriteFSAlert(_("Error: Cannot write file:"), fname);
		return;
	}

	string fname1 = TmpFileName();
	LyXParagraph * par = paragraph;
	while (par) {
		int noparbreak = 0;
		int islatex = 0;
		if (par->footnoteflag != LyXParagraph::NO_FOOTNOTE ||
		    !par->previous ||
		    par->previous->footnoteflag == LyXParagraph::NO_FOOTNOTE){
	 
			/* begins a footnote environment ? */ 
			if (footnoteflag != par->footnoteflag) {
				footnoteflag = par->footnoteflag;
				if (footnoteflag) {
					j = strlen(string_footnotekinds[par->footnotekind])+4;
					if (currlinelen + j > linelen)
						ofs << "\n";
					ofs << "(["
					    << string_footnotekinds[par->footnotekind] << "] ";
					currlinelen += j;
				}
			}
	 
			/* begins or ends a deeper area ?*/ 
			if (depth != par->depth) {
				if (par->depth > depth) {
					while (par->depth > depth) {
						++depth;
					}
				}
				else {
					while (par->depth < depth) {
						--depth;
					}
				}
			}
	 
			/* First write the layout */
			tmp = textclasslist.NameOfLayout(params.textclass, par->layout);
			if (tmp == "Itemize") {
				ltype = 1;
				ltype_depth = depth+1;
			} else if (tmp == "Enumerate") {
				ltype = 2;
				ltype_depth = depth+1;
			} else if (strstr(tmp.c_str(), "ection")) {
				ltype = 3;
				ltype_depth = depth+1;
			} else if (strstr(tmp.c_str(), "aragraph")) {
				ltype = 4;
				ltype_depth = depth+1;
			} else if (tmp == "Description") {
				ltype = 5;
				ltype_depth = depth+1;
			} else if (tmp == "Abstract") {
				ltype = 6;
				ltype_depth = 0;
			} else if (tmp == "Bibliography") {
				ltype = 7;
				ltype_depth = 0;
			} else {
				ltype = 0;
				ltype_depth = 0;
			}
	 
			/* maybe some vertical spaces */ 

			/* the labelwidthstring used in lists */ 
	 
			/* some lines? */ 
	 
			/* some pagebreaks? */ 
	 
			/* noindent ? */ 
	 
			/* what about the alignment */ 
		}
		else {
			/* dummy layout, that means a footnote ended */ 
			footnoteflag = LyXParagraph::NO_FOOTNOTE;
			ofs << ") ";
			noparbreak = 1;
		}
      
		/* It might be a table */ 
		if (par->table){
#if 0
			if (!lyxrc->ascii_roff_command.empty() &&
                            lyxrc->ascii_roff_command != "none") {
				RoffAsciiTable(ofs, par);
				par = par->next;
				continue;
			}
#endif
			cell = 1;
                        actcell = 0;
			cells = par->table->columns;
			clen = new int [cells];
			memset(clen, 0, sizeof(int) * cells);
			for (i = 0, j = 0, h = 1; i < par->size(); ++i, ++h) {
				c = par->GetChar(i);
				if (c == LyXParagraph::META_INSET) {
					if ((inset = par->GetInset(i))) {
#if 1
#ifdef HAVE_SSTREAM
						ostringstream ost;
						inset->Latex(ost, -1);
						h += ost.str().length();
#else
						ostrstream ost;
						inset->Latex(ost, -1);
						ost << '\0';
						char * tmp = ost.str();
						string tstr(tmp);
						h += tstr.length();
						delete [] tmp;
#endif
#else
						ofstream fs(fname1.c_str());
						if (!fs) {
							WriteFSAlert(_("Error: Cannot open temporary file:"), fname1);
							return;
						}
						inset->Latex(fs, -1);
						h += fs.tellp() - 1;
						::remove(fname1.c_str());
#endif
					}
				} else if (c == LyXParagraph::META_NEWLINE) {
					if (clen[j] < h)
						clen[j] = h;
					h = 0;
					j = (++j) % par->table->NumberOfCellsInRow(actcell);
                                        ++actcell;
				}
			}
			if (clen[j] < h)
				clen[j] = h;
		}
      
		font1 = LyXFont(LyXFont::ALL_INHERIT);
                actcell = 0;
		for (i = 0, actpos = 1; i < par->size(); ++i, ++actpos) {
			if (!i && !footnoteflag && !noparbreak){
				ofs << "\n\n";
				for(j = 0; j < depth; ++j)
					ofs << "  ";
				currlinelen = depth * 2;
				switch(ltype) {
				case 0: /* Standard */
				case 4: /* (Sub)Paragraph */
                                case 5: /* Description */
					break;
				case 6: /* Abstract */
					ofs << "Abstract\n\n";
					break;
				case 7: /* Bibliography */
					if (!ref_printed) {
						ofs << "References\n\n";
						ref_printed = true;
					}
					break;
				default:
					ofs << par->labelstring << " ";
					break;
				}
				if (ltype_depth > depth) {
					for(j = ltype_depth - 1; j > depth; --j)
						ofs << "  ";
					currlinelen += (ltype_depth-depth)*2;
				}
				if (par->table) {
					for(j = 0; j < cells; ++j) {
						ofs << '+';
						for(h = 0; h < (clen[j] + 1);
						    ++h)
							ofs << '-';
					}
					ofs << "+\n";
					for(j = 0; j < depth; ++j)
						ofs << "  ";
					currlinelen = depth * 2;
					if (ltype_depth > depth) {
						for(j = ltype_depth;
						    j > depth; --j)
							ofs << "  ";
						currlinelen += (ltype_depth-depth)*2;
					}
					ofs << "| ";
				}
			}
			font2 = par->GetFontSettings(i);
			if (font1.latex() != font2.latex()) {
				if (font2.latex() == LyXFont::OFF)
					islatex = 0;
				else
					islatex = 1;
			}
			else {
				islatex = 0;
			}
			c = par->GetChar(i);
			if (islatex)
				continue;
			switch (c) {
			case LyXParagraph::META_INSET:
				if ((inset = par->GetInset(i))) {
					fpos = ofs.tellp();
					inset->Latex(ofs, -1);
					currlinelen += (ofs.tellp() - fpos);
					actpos += (ofs.tellp() - fpos) - 1;
				}
				break;
			case LyXParagraph::META_NEWLINE:
				if (par->table) {
					if (par->table->NumberOfCellsInRow(actcell) <= cell) {
						for(j = actpos; j < clen[cell - 1]; ++j)
							ofs << ' ';
						ofs << " |\n";
						for(j = 0; j < depth; ++j)
							ofs << "  ";
						currlinelen = depth*2;
						if (ltype_depth > depth) {
							for(j = ltype_depth; j > depth; --j)
								ofs << "  ";
							currlinelen += (ltype_depth-depth) * 2;
						}
						for(j = 0; j < cells; ++j) {
							ofs << '+';
							for(h = 0; h < (clen[j] + 1); ++h)
								ofs << '-';
						}
						ofs << "+\n";
						for(j = 0; j < depth; ++j)
							ofs << "  ";
						currlinelen = depth * 2;
						if (ltype_depth > depth) {
							for(j = ltype_depth;
							    j > depth; --j)
								ofs << "  ";
							currlinelen += (ltype_depth-depth)*2;
						}
						ofs << "| ";
						cell = 1;
					} else {
						for(j = actpos;
						    j < clen[cell - 1]; ++j)
							ofs << ' ';
						ofs << " | ";
						++cell;
					}
                                        ++actcell;
					currlinelen = actpos = 0;
				} else {
					ofs << "\n";
					for(j = 0; j < depth; ++j)
						ofs << "  ";
					currlinelen = depth * 2;
					if (ltype_depth > depth) {
						for(j = ltype_depth;
						    j > depth; --j)
							ofs << "  ";
						currlinelen += (ltype_depth - depth) * 2;
					}
				}
				break;
			case LyXParagraph::META_HFILL: 
				ofs << "\t";
				break;
#if 0
			case LyXParagraph::META_PROTECTED_SEPARATOR:
				ofs << " ";
				break;
#endif
			case '\\':
				ofs << "\\";
				break;
			default:
				if (currlinelen > linelen - 10
                                    && c == ' ' && i + 2 < par->size()) {
					ofs << "\n";
					for(j = 0; j < depth; ++j)
						ofs << "  ";
					currlinelen = depth * 2;
					if (ltype_depth > depth) {
						for(j = ltype_depth;
						    j > depth; --j)
							ofs << "  ";
						currlinelen += (ltype_depth-depth)*2;
					}
				} else if (c != '\0')
					ofs << c;
				else if (c == '\0')
					lyxerr.debug() << "writeAsciiFile: NULL char in structure." << endl;
				++currlinelen;
				break;
			}
		}
		if (par->table) {
			for(j = actpos; j < clen[cell - 1]; ++j)
				ofs << ' ';
			ofs << " |\n";
			for(j = 0; j < depth; ++j)
				ofs << "  ";
			currlinelen = depth * 2;
			if (ltype_depth > depth) {
				for(j = ltype_depth; j > depth; --j)
					ofs << "  ";
				currlinelen += (ltype_depth - depth) * 2;
			}
			for(j = 0; j < cells; ++j) {
				ofs << '+';
				for(h = 0; h < (clen[j] + 1); ++h)
					ofs << '-';
			}
			ofs << "+\n";
			delete [] clen;    
		}      
		par = par->next;
	}
   
	ofs << "\n";
}


void Buffer::makeLaTeXFile(string const & fname, 
			   string const & original_path,
			   bool nice, bool only_body)
{
	lyxerr[Debug::LATEX] << "makeLaTeXFile..." << endl;
	
	niceFile = nice; // this will be used by Insetincludes.

	tex_code_break_column = lyxrc->ascii_linelen;

        LyXTextClass const & tclass =
		textclasslist.TextClass(params.textclass);

	ofstream ofs(fname.c_str());
	if (!ofs) {
		WriteFSAlert(_("Error: Cannot open file: "), fname);
		return;
	}
	
	// validate the buffer.
	lyxerr[Debug::LATEX] << "  Validating buffer..." << endl;
	LaTeXFeatures features(tclass.numLayouts());
	validate(features);
	lyxerr[Debug::LATEX] << "  Buffer validation done." << endl;
	
	texrow.reset();
	// The starting paragraph of the coming rows is the 
	// first paragraph of the document. (Asger)
	texrow.start(paragraph, 0);

	string LFile;
	
	if (!only_body && nice) {
		LFile += "%% " LYX_DOCVERSION " created this file.  "
		         "For more info, see http://www.lyx.org/.\n";
		LFile += "%% Do not edit unless you really know what you are doing.\n";
		texrow.newline();
		texrow.newline();
	}
	lyxerr.debug() << "lyx header finished" << endl;
	// There are a few differences between nice LaTeX and usual files:
	// usual is \batchmode and has a 
	// special input@path to allow the including of figures
	// with either \input or \includegraphics (what figinsets do).
	// batchmode is not set if there is a tex_code_break_column.
	// In this case somebody is interested in the generated LaTeX,
	// so this is OK. input@path is set when the actual parameter
	// original_path is set. This is done for usual tex-file, but not
	// for nice-latex-file. (Matthias 250696)
	if (!only_body) {
		if (!nice){
			// code for usual, NOT nice-latex-file
			LFile += "\\batchmode\n"; // changed
			// from \nonstopmode
			texrow.newline();
		}
		if (!original_path.empty()) {
			LFile += "\\makeatletter\n";
			texrow.newline();
			LFile += "\\def\\input@path{{" + original_path
				 + "/}}\n";
			texrow.newline();
			LFile += "\\makeatother\n";
			texrow.newline();
		}
		
		LFile += "\\documentclass";
		
		string options; // the document class options.
		
		if (tokenPos(tclass.opt_fontsize(), '|', params.fontsize) >= 0) {
			// only write if existing in list (and not default)
			options += params.fontsize;
			options += "pt,";
		}
		
		
		if (!params.use_geometry &&
		    (params.paperpackage == BufferParams::PACKAGE_NONE)) {
			switch (params.papersize) {
			case BufferParams::PAPER_A4PAPER:
				options += "a4paper,";
				break;
			case BufferParams::PAPER_USLETTER:
				options += "letterpaper,";
				break;
			case BufferParams::PAPER_A5PAPER:
				options += "a5paper,";
				break;
			case BufferParams::PAPER_B5PAPER:
				options += "b5paper,";
				break;
			case BufferParams::PAPER_EXECUTIVEPAPER:
				options += "executivepaper,";
				break;
			case BufferParams::PAPER_LEGALPAPER:
				options += "legalpaper,";
				break;
			}
		}

		// if needed
		if (params.sides != tclass.sides()) {
			switch (params.sides) {
			case LyXTextClass::OneSide:
				options += "oneside,";
				break;
			case LyXTextClass::TwoSides:
				options += "twoside,";
				break;
			}

		}

		// if needed
		if (params.columns != tclass.columns()) {
			if (params.columns == 2)
				options += "twocolumn,";
			else
				options += "onecolumn,";
		}

		if (!params.use_geometry 
		    && params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
			options += "landscape,";
		
		// language should be a parameter to \documentclass		
		if (params.language != "default") {
			if (params.language == "hebrew")
				options += "english,";
			else if (lyxrc->rtl_support)
				options += "hebrew,";
			options += params.language + ',';
		} else if (lyxrc->rtl_support)
			options += "hebrew,english,";

		// the user-defined options
		if (!params.options.empty()) {
			options += params.options + ',';
		}
		
		if (!options.empty()){
			options = strip(options, ',');
			LFile += '[';
			LFile += options;
			LFile += ']';
		}
		
		LFile += '{';
		LFile += textclasslist.LatexnameOfClass(params.textclass);
		LFile += "}\n";
		texrow.newline();
		// end of \documentclass defs
		
		// font selection must be done before loading fontenc.sty
		if (params.fonts != "default") {
			LFile += "\\usepackage{" + params.fonts + "}\n";
			texrow.newline();
		}
		// this one is not per buffer
		if (lyxrc->fontenc != "default") {
			LFile += "\\usepackage[" + lyxrc->fontenc
				 + "]{fontenc}\n";
			texrow.newline();
		}
		if (params.inputenc != "default") {
			LFile += "\\usepackage[" + params.inputenc
				 + "]{inputenc}\n";
			texrow.newline();
		}
		
		/* at the very beginning the text parameters */
		if (params.paperpackage != BufferParams::PACKAGE_NONE) {
			switch (params.paperpackage) {
			case BufferParams::PACKAGE_A4:
				LFile += "\\usepackage{a4}\n";
				texrow.newline();
				break;
			case BufferParams::PACKAGE_A4WIDE:
				LFile += "\\usepackage{a4wide}\n";
				texrow.newline();
				break;
			case BufferParams::PACKAGE_WIDEMARGINSA4:
				LFile += "\\usepackage[widemargins]{a4}\n";
				texrow.newline();
				break;
			}
		}
		if (params.use_geometry) {
			LFile += "\\usepackage{geometry}\n";
			texrow.newline();
			LFile += "\\geometry{verbose";
			if (params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
				LFile += ",landscape";
			switch (params.papersize2) {
			case BufferParams::VM_PAPER_CUSTOM:
				if (!params.paperwidth.empty())
					LFile += ",paperwidth="
						 + params.paperwidth;
				if (!params.paperheight.empty())
					LFile += ",paperheight="
						 + params.paperheight;
				break;
			case BufferParams::VM_PAPER_USLETTER:
				LFile += ",letterpaper";
				break;
			case BufferParams::VM_PAPER_USLEGAL:
				LFile += ",legalpaper";
				break;
			case BufferParams::VM_PAPER_USEXECUTIVE:
				LFile += ",executivepaper";
				break;
			case BufferParams::VM_PAPER_A3:
				LFile += ",a3paper";
				break;
			case BufferParams::VM_PAPER_A4:
				LFile += ",a4paper";
				break;
			case BufferParams::VM_PAPER_A5:
				LFile += ",a5paper";
				break;
			case BufferParams::VM_PAPER_B3:
				LFile += ",b3paper";
				break;
			case BufferParams::VM_PAPER_B4:
				LFile += ",b4paper";
				break;
			case BufferParams::VM_PAPER_B5:
				LFile += ",b5paper";
				break;
			default:
				// default papersize ie BufferParams::VM_PAPER_DEFAULT
				switch (lyxrc->default_papersize) {
				case BufferParams::PAPER_DEFAULT: // keep compiler happy
				case BufferParams::PAPER_USLETTER:
					LFile += ",letterpaper";
					break;
				case BufferParams::PAPER_LEGALPAPER:
					LFile += ",legalpaper";
					break;
				case BufferParams::PAPER_EXECUTIVEPAPER:
					LFile += ",executivepaper";
					break;
				case BufferParams::PAPER_A3PAPER:
					LFile += ",a3paper";
					break;
				case BufferParams::PAPER_A4PAPER:
					LFile += ",a4paper";
					break;
				case BufferParams::PAPER_A5PAPER:
					LFile += ",a5paper";
					break;
				case BufferParams::PAPER_B5PAPER:
					LFile += ",b5paper";
					break;
				}
			}
			if (!params.topmargin.empty())
				LFile += ",tmargin=" + params.topmargin;
			if (!params.bottommargin.empty())
				LFile += ",bmargin=" + params.bottommargin;
			if (!params.leftmargin.empty())
				LFile += ",lmargin=" + params.leftmargin;
			if (!params.rightmargin.empty())
				LFile += ",rmargin=" + params.rightmargin;
			if (!params.headheight.empty())
				LFile += ",headheight=" + params.headheight;
			if (!params.headsep.empty())
				LFile += ",headsep=" + params.headsep;
			if (!params.footskip.empty())
				LFile += ",footskip=" + params.footskip;
			LFile += "}\n";
			texrow.newline();
		}
		if (params.use_amsmath
		    && !prefixIs(textclasslist.LatexnameOfClass(params.textclass), "ams")) {
			LFile += "\\usepackage{amsmath}\n";
		}

		if (tokenPos(tclass.opt_pagestyle(), '|', params.pagestyle) >= 0) {
			if (params.pagestyle == "fancy") {
				LFile += "\\usepackage{fancyhdr}\n";
				texrow.newline();
			}
			LFile += "\\pagestyle{" + params.pagestyle + "}\n";
			texrow.newline();
		}

		// We try to load babel late, in case it interferes
		// with other packages.
		if (params.language != "default" || lyxrc->rtl_support ) {
			LFile += "\\usepackage{babel}\n";
			texrow.newline();
		}

		if (params.secnumdepth != tclass.secnumdepth()) {
			LFile += "\\setcounter{secnumdepth}{";
			LFile += tostr(params.secnumdepth);
			LFile += "}\n";
			texrow.newline();
		}
		if (params.tocdepth != tclass.tocdepth()) {
			LFile += "\\setcounter{tocdepth}{";
			LFile += tostr(params.tocdepth);
			LFile += "}\n";
			texrow.newline();
		}
		
		if (params.paragraph_separation) {
			switch (params.defskip.kind()) {
			case VSpace::SMALLSKIP: 
				LFile += "\\setlength\\parskip{\\smallskipamount}\n";
				break;
			case VSpace::MEDSKIP:
				LFile += "\\setlength\\parskip{\\medskipamount}\n";
				break;
			case VSpace::BIGSKIP:
				LFile += "\\setlength\\parskip{\\bigskipamount}\n";
				break;
			case VSpace::LENGTH:
				LFile += "\\setlength\\parskip{"
					 + params.defskip.length().asLatexString()
					 + "}\n";
				break;
			default: // should never happen // Then delete it.
				LFile += "\\setlength\\parskip{\\medskipamount}\n";
				break;
			}
			texrow.newline();
			
			LFile += "\\setlength\\parindent{0pt}\n";
			texrow.newline();
		}

		// Write out what we've generated so far...and reset LFile
		ofs << LFile;
		LFile.clear(); 

		// Now insert the LyX specific LaTeX commands...
		string preamble, tmppreamble;

		// The optional packages;
		preamble = features.getPackages(params);

		// this might be useful...
		preamble += "\n\\makeatletter\n\n";

		// Some macros LyX will need
		tmppreamble = features.getMacros(params);

		if (!tmppreamble.empty()) {
			preamble += "\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
				"LyX specific LaTeX commands.\n"
				+ tmppreamble + '\n';
		}

		// the text class specific preamble 
		tmppreamble = features.getTClassPreamble(params);
		if (!tmppreamble.empty()) {
			preamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
				"Textclass specific LaTeX commands.\n"
				+ tmppreamble + '\n';
		}

		/* the user-defined preamble */
		if (!params.preamble.empty()) {
			preamble += "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
				"User specified LaTeX commands.\n"
				+ params.preamble + '\n';
		}

		preamble += "\\makeatother\n\n";

		// Itemize bullet settings need to be last in case the user
		// defines their own bullets that use a package included
		// in the user-defined preamble -- ARRae
		// Actually it has to be done much later than that
		// since some packages like frenchb make modifications
		// at \begin{document} time -- JMarc 
		string bullets_def;
		for (int i = 0; i < 4; ++i) {
			if (params.user_defined_bullets[i] != ITEMIZE_DEFAULTS[i]) {
				if (bullets_def.empty())
					bullets_def="\\AtBeginDocument{\n";
				bullets_def += "  \\renewcommand{\\labelitemi";
				switch (i) {
				// `i' is one less than the item to modify
				case 0:
					break;
				case 1:
					bullets_def += 'i';
					break;
				case 2:
					bullets_def += "ii";
					break;
				case 3:
					bullets_def += 'v';
					break;
				}
				bullets_def += "}{" + 
				  params.user_defined_bullets[i].getText() 
				  + "}\n";
			}
		}

		if (!bullets_def.empty())
		  preamble += bullets_def + "}\n\n";

		for (int j = countChar(preamble, '\n'); j-- ;) {
			texrow.newline();
		}

		ofs << preamble;

		// make the body.
		LFile += "\\begin{document}\n\n";
		texrow.newline();
		texrow.newline();
	} // only_body
	lyxerr.debug() << "preamble finished, now the body." << endl;
	
	bool was_title = false;
	bool already_title = false;
	string ftnote;
	TexRow ft_texrow;
	int ftcount = 0;
	int loop_count = 0;

	LyXParagraph * par = paragraph;

	// if only_body
	while (par) {
		++loop_count;
		if (par->IsDummy())
			lyxerr[Debug::LATEX] << "Error in MakeLateXFile."
					     << endl;
		LyXLayout const & layout =
			textclasslist.Style(params.textclass,
					    par->layout);
	    
	        if (layout.intitle) {
			if (already_title) {
				lyxerr <<"Error in MakeLatexFile: You"
					" should not mix title layouts"
					" with normal ones." << endl;
			} else
				was_title = true;
	        } else if (was_title && !already_title) {
			LFile += "\\maketitle\n";
			texrow.newline();
			already_title = true;
			was_title = false;		    
		}
		// We are at depth 0 so we can just use
		// ordinary \footnote{} generation
		// flag this with ftcount
		ftcount = -1;
		if (layout.isEnvironment()
                    || par->pextra_type != LyXParagraph::PEXTRA_NONE) {
			par = par->TeXEnvironment(LFile, texrow,
						  ftnote, ft_texrow, ftcount);
		} else {
			par = par->TeXOnePar(LFile, texrow,
					     ftnote, ft_texrow, ftcount);
		}

		// Write out what we've generated...and reset LFile
		if (ftcount >= 1) {
			if (ftcount > 1) {
				LFile += "\\addtocounter{footnote}{-";
				LFile += tostr(ftcount - 1);
				LFile += '}';
			}
			LFile += ftnote;
			texrow += ft_texrow;
			ftnote.clear();
			ft_texrow.reset();
			ftcount = 0;
		}
		if (loop_count == 2) {
			// fwrite()ing every second time through the loop
			// gains a few extra % of speed; going higher than
			// 2 will slow things down again.  I'll look at
			// LFile.length() in a future revision.  ARRae
			ofs << LFile;
			LFile.clear();
			loop_count = 0;
		}
	}

	// It might be that we only have a title in this document
	if (was_title && !already_title) {
		LFile += "\\maketitle\n";
		texrow.newline();
	}

	if (!only_body) {
		LFile += "\\end{document}\n";
		texrow.newline();
	
		lyxerr[Debug::LATEX] << "makeLaTeXFile...done" << endl;
	} else {
		lyxerr[Debug::LATEX] << "LaTeXFile for inclusion made."
				     << endl;
	}

	// Just to be sure. (Asger)
	texrow.newline();

	// Write out what we've generated...and reset LFile
	ofs << LFile;
	LFile.clear();

	// tex_code_break_column's value is used to decide
	// if we are in batchmode or not (within mathed_write()
	// in math_write.C) so we must set it to a non-zero
	// value when we leave otherwise we save incorrect .lyx files.
	tex_code_break_column = lyxrc->ascii_linelen;

	// How to check if the close went ok when using fstreams
	ofs.close();
	lyxerr.debug() << "Finished making latex file." << endl;
}


bool Buffer::isLatex() const
{
	return textclasslist.TextClass(params.textclass).outputType() == LATEX;
}


bool Buffer::isLinuxDoc() const
{
	return textclasslist.TextClass(params.textclass).outputType() == LINUXDOC;
}


bool Buffer::isLiterate() const
{
	return textclasslist.TextClass(params.textclass).outputType() == LITERATE;
}


bool Buffer::isDocBook() const
{
	return textclasslist.TextClass(params.textclass).outputType() == DOCBOOK;
}


bool Buffer::isSGML() const
{
	return textclasslist.TextClass(params.textclass).outputType() == LINUXDOC ||
	       textclasslist.TextClass(params.textclass).outputType() == DOCBOOK;
}


void Buffer::sgmlOpenTag(ostream & os, int depth,
			 string const & latexname) const
{
	os << string(depth, ' ') << "<" << latexname << ">\n";
}


void Buffer::sgmlCloseTag(ostream & os, int depth,
			  string const & latexname) const
{
	os << string(depth, ' ') << "</" << latexname << ">\n";
}


void Buffer::makeLinuxDocFile(string const & fname, int column)
{
	LyXParagraph * par = paragraph;

	string top_element = textclasslist.LatexnameOfClass(params.textclass);
	string environment_stack[10];
        string item_name;

	int depth = 0;              /* paragraph depth */

	ofstream ofs(fname.c_str());

	if (!ofs) {
		WriteAlert(_("LYX_ERROR:"), _("Cannot write file"), fname);
		return;
	}
   
	tex_code_break_column = column; 
	texrow.reset();
   
	if (params.preamble.empty()) {
		ofs << "<!doctype linuxdoc system>\n\n";
	}
	else {
		ofs << "<!doctype linuxdoc system \n [ "
		    << params.preamble << " \n]>\n\n";
	}

	ofs << "<!-- "  << LYX_DOCVERSION 
	    << " created this file. For more info see http://www.lyx.org/"
	    << " -->\n";

	if(params.options.empty())
		sgmlOpenTag(ofs, 0, top_element);
	else {
		string top = top_element;
		top += " ";
		top += params.options;
		sgmlOpenTag(ofs, 0, top);
	}

	while (par) {
		int desc_on = 0;            /* description mode*/
		LyXLayout const & style =
			textclasslist.Style(users->buffer()->params.textclass,
					    par->layout);
		par->AutoDeleteInsets();

		/* treat <toc> as a special case for compatibility with old code */
		if (par->GetChar(0) == LyXParagraph::META_INSET) {
		        Inset * inset = par->GetInset(0);
			char  lyx_code = inset->LyxCode();
			if (lyx_code == Inset::TOC_CODE){
				string temp = "toc";
				sgmlOpenTag(ofs, depth, temp);

				par = par->next;
				linuxDocHandleFootnote(ofs, par, depth);
				continue;
			}
		}

		// environment tag closing
		for( ; depth > par->depth; --depth) {
			sgmlCloseTag(ofs, depth, environment_stack[depth]);
			environment_stack[depth].clear();
		}

		// write opening SGML tags
		switch(style.latextype) {
		case LATEX_PARAGRAPH:
			if(depth == par->depth 
			   && !environment_stack[depth].empty()) {
				sgmlCloseTag(ofs, depth, environment_stack[depth]);
				environment_stack[depth].clear();
				if(depth) 
					--depth;
				else
				        ofs << "</p>";
			}
			sgmlOpenTag(ofs, depth, style.latexname());
			break;

		case LATEX_COMMAND:
			if (depth!= 0)
				LinuxDocError(par, 0, _("Error : Wrong depth for LatexType Command.\n"));

			if (!environment_stack[depth].empty()){
				sgmlCloseTag(ofs, depth,
					     environment_stack[depth]);
				ofs << "</p>";
			}

			environment_stack[depth].clear();
			sgmlOpenTag(ofs, depth, style.latexname());
			break;

		case LATEX_ENVIRONMENT:
		case LATEX_ITEM_ENVIRONMENT:
			if(depth == par->depth 
			   && environment_stack[depth] != style.latexname()
			   && !environment_stack[depth].empty()) {

				sgmlCloseTag(ofs, depth,
					     environment_stack[depth]);
				environment_stack[depth].clear();
			}
			if (depth < par->depth) {
			       depth = par->depth;
			       environment_stack[depth].clear();
			}
			if (environment_stack[depth] != style.latexname()) {
				if(depth == 0) {
					string temp = "p";
					sgmlOpenTag(ofs, depth, temp);
				}
				environment_stack[depth] = style.latexname();
				sgmlOpenTag(ofs, depth, environment_stack[depth]);
			}
			if(style.latextype == LATEX_ENVIRONMENT) break;

			desc_on = (style.labeltype == LABEL_MANUAL);

			if(desc_on)
				item_name = "tag";
			else
				item_name = "item";

			sgmlOpenTag(ofs, depth + 1, item_name);
			break;
		default:
			sgmlOpenTag(ofs, depth, style.latexname());
			break;
		}

		do {
			SimpleLinuxDocOnePar(ofs, par, desc_on, depth);

			par = par->next;
			linuxDocHandleFootnote(ofs, par, depth);
		}
		while(par && par->IsDummy());

		ofs << "\n";
		/* write closing SGML tags */
		switch(style.latextype) {
		case LATEX_COMMAND:
		case LATEX_ENVIRONMENT:
		case LATEX_ITEM_ENVIRONMENT:
			break;
		default:
			sgmlCloseTag(ofs, depth, style.latexname());
			break;
		}
	}
   
	/* Close open tags */
	for(; depth > 0; --depth)
	        sgmlCloseTag(ofs, depth, environment_stack[depth]);

	if(!environment_stack[depth].empty())
	        sgmlCloseTag(ofs, depth, environment_stack[depth]);

	ofs << "\n\n";
	sgmlCloseTag(ofs, 0, top_element);

	ofs.close();
	// How to check for successful close
}


void Buffer::linuxDocHandleFootnote(ostream & os, LyXParagraph * & par,
				    int const depth)
{
	string tag = "footnote";

	while (par && par->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
		sgmlOpenTag(os, depth + 1, tag);
		SimpleLinuxDocOnePar(os, par, 0, depth + 1);
		sgmlCloseTag(os, depth + 1, tag);
		par = par->next;
	}
}


void Buffer::DocBookHandleCaption(ostream & os, string & inner_tag,
				  int const depth, int desc_on,
				  LyXParagraph * & par)
{
	LyXParagraph * tpar = par;
	string tmp_par, extra_par;
	while (tpar && (tpar->footnoteflag != LyXParagraph::NO_FOOTNOTE) &&
	       (tpar->layout != textclasslist.NumberOfLayout(params.textclass,
							     "Caption").second))
		tpar = tpar->next;
	if (tpar &&
	    tpar->layout == textclasslist.NumberOfLayout(params.textclass,
							 "Caption").second) {
		sgmlOpenTag(os, depth + 1, inner_tag);
		SimpleDocBookOnePar(tmp_par, extra_par, tpar,
				    desc_on, depth + 2);
		tmp_par = strip(tmp_par);
		tmp_par = frontStrip(tmp_par);
		os << tmp_par;
		sgmlCloseTag(os, depth+1, inner_tag);
		if(!extra_par.empty())
			os << extra_par;
	}
}


void Buffer::DocBookHandleFootnote(ostream & os, LyXParagraph * & par,
				   int const depth)
{
	string tag, inner_tag;
	string tmp_par, extra_par;
	bool inner_span = false;
	int desc_on = 4;

	// This is not how I like to see enums. They should not be anonymous
	// and variables of its type should not be declared right after the
	// last brace. (Lgb)
	enum {
		NO_ONE,
		FOOTNOTE_LIKE,
		MARGIN_LIKE,
		FIG_LIKE,
		TAB_LIKE
	} last = NO_ONE, present = FOOTNOTE_LIKE;

	while (par && par->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
		if(last == present) {
			if(inner_span) {
				if(!tmp_par.empty()) {
					os << tmp_par;
					tmp_par.clear();
					sgmlCloseTag(os, depth+1, inner_tag);
					sgmlOpenTag(os, depth+1, inner_tag);
				}
			}
			else
				os << "\n";
		} else {
			os << tmp_par;
			if(!inner_tag.empty()) sgmlCloseTag(os, depth+1, inner_tag);
			if(!extra_par.empty()) os << extra_par;
			if(!tag.empty()) sgmlCloseTag(os, depth, tag);
			extra_par.clear();

			switch (par->footnotekind) {
			case LyXParagraph::FOOTNOTE:
			case LyXParagraph::ALGORITHM:
				tag = "footnote";
				inner_tag = "para";
				present = FOOTNOTE_LIKE;
				inner_span = true;
				break;
			case LyXParagraph::MARGIN:
				tag = "sidebar";
				inner_tag = "para";
				present = MARGIN_LIKE;
				inner_span = true;
				break;
			case LyXParagraph::FIG:
			case LyXParagraph::WIDE_FIG:
				tag = "figure";
				inner_tag = "title";
				present = FIG_LIKE;
				inner_span = false;
				break;
			case LyXParagraph::TAB:
			case LyXParagraph::WIDE_TAB:
				tag = "table";
				inner_tag = "title";
				present = TAB_LIKE;
				inner_span = false;
				break;
			}
			sgmlOpenTag(os, depth, tag);
			if ((present == TAB_LIKE) || (present == FIG_LIKE)) {
				DocBookHandleCaption(os, inner_tag, depth,
						     desc_on, par);
				inner_tag.clear();
			} else {
				sgmlOpenTag(os, depth + 1, inner_tag);
			}
		}
		// ignore all caption here, we processed them above!!!
		if (par->layout != textclasslist.NumberOfLayout(params.textclass,
							   "Caption").second) {
			SimpleDocBookOnePar(tmp_par, extra_par, par,
					    desc_on, depth + 2);
		}
		tmp_par = frontStrip(strip(tmp_par));

		last = present;
		par = par->next;
	}
	os << tmp_par;
	if(!inner_tag.empty()) sgmlCloseTag(os, depth+1, inner_tag);
	if(!extra_par.empty()) os << extra_par;
	if(!tag.empty()) sgmlCloseTag(os, depth, tag);
}


/* push a tag in a style stack */
void Buffer::push_tag(ostream & os, char const * tag,
		      int & pos, char stack[5][3])
{
	/* pop all previous tags */
	for (int j = pos; j >= 0; --j)
		os << "</" << stack[j] << ">";

	/* add new tag */
	sprintf(stack[++pos], "%s", tag);

	/* push all tags */
	for (int i = 0; i <= pos; ++i)
		os << "<" << stack[i] << ">";
}

void Buffer::pop_tag(ostream & os, char const * tag,
                     int & pos, char stack[5][3])
{
        int j;

        // pop all tags till specified one
        for (j = pos; (j >= 0) && (strcmp(stack[j], tag)); --j)
                os << "</" << stack[j] << ">";

        // closes the tag
        os << "</" << tag << ">";

        // push all tags, but the specified one
        for (j = j + 1; j <= pos; ++j) {
                os << "<" << stack[j] << ">";
                strcpy(stack[j-1], stack[j]);
        }
        --pos;
}


/* handle internal paragraph parsing -- layout already processed */

// checks, if newcol chars should be put into this line
// writes newline, if necessary.
static
void linux_doc_line_break(ostream & os, unsigned int & colcount,
			  const unsigned int newcol)
{
	colcount += newcol;
	if (colcount > lyxrc->ascii_linelen) {
		os << "\n";
		colcount = newcol; // assume write after this call
	}
}


void Buffer::SimpleLinuxDocOnePar(ostream & os, LyXParagraph * par,
				  int desc_on, int const /*depth*/)
{
	LyXFont font1, font2;
	char c;
	Inset * inset;
	LyXParagraph::size_type main_body;
	int j;
	LyXLayout const & style = textclasslist.Style(params.textclass,
						      par->GetLayout());

	char family_type = 0;               // family font flag 
	bool is_bold     = false;           // series font flag 
	char shape_type  = 0;               // shape font flag 
	bool is_em = false;                 // emphasis (italic) font flag 

	int stack_num = -1;          // style stack position 
	char stack[5][3];    	     // style stack 
        unsigned int char_line_count = 5;     // Heuristic choice ;-) 

	if (style.labeltype != LABEL_MANUAL)
		main_body = 0;
	else
		main_body = par->BeginningOfMainBody();

	/* gets paragraph main font */
	if (main_body > 0)
		font1 = style.labelfont;
	else
		font1 = style.font;

  
	/* parsing main loop */
	for (LyXParagraph::size_type i = 0;
	     i < par->size(); ++i) {

		/* handle quote tag */
		if (i == main_body && !par->IsDummy()) {
			if (main_body > 0)
				font1 = style.font;
		}

		font2 = par->getFont(i);

		if (font1.family() != font2.family()) {
			switch(family_type) {
			case 0:
			       	if (font2.family() == LyXFont::TYPEWRITER_FAMILY) {
			        	push_tag(os, "tt", stack_num, stack);
					family_type= 1;
				}
				else if (font2.family() == LyXFont::SANS_FAMILY) {
				        push_tag(os, "sf", stack_num, stack);
					family_type= 2;
				}
				break;
			case 1:
				pop_tag(os, "tt", stack_num, stack);
				if (font2.family() == LyXFont::SANS_FAMILY) {
			        	push_tag(os, "sf", stack_num, stack);
					family_type= 2;
				}
				else {
					family_type= 0;
				}
				break;
			case 2:
				pop_tag(os, "sf", stack_num, stack);
				if (font2.family() == LyXFont::TYPEWRITER_FAMILY) {
			        	push_tag(os, "tt", stack_num, stack);
					family_type= 1;
				}
				else {
					family_type= 0;
				}
			}
		}

		/* handle bold face */
		if (font1.series() != font2.series()) {
		        if (font2.series() == LyXFont::BOLD_SERIES) {
			        push_tag(os, "bf", stack_num, stack);
				is_bold = true;
			}
			else if (is_bold) {
			        pop_tag(os, "bf", stack_num, stack);
				is_bold = false;
			}
		}

		/* handle italic and slanted fonts */
		if (font1.shape() != font2.shape()) {
			switch(shape_type) {
			case 0:
			       	if (font2.shape() == LyXFont::ITALIC_SHAPE) {
			        	push_tag(os, "it", stack_num, stack);
					shape_type= 1;
				}
				else if (font2.shape() == LyXFont::SLANTED_SHAPE) {
				        push_tag(os, "sl", stack_num, stack);
					shape_type= 2;
				}
				break;
			case 1:
				pop_tag(os, "it", stack_num, stack);
				if (font2.shape() == LyXFont::SLANTED_SHAPE) {
			        	push_tag(os, "sl", stack_num, stack);
					shape_type= 2;
				}
				else {
					shape_type= 0;
				}
				break;
			case 2:
				pop_tag(os, "sl", stack_num, stack);
				if (font2.shape() == LyXFont::ITALIC_SHAPE) {
			        	push_tag(os, "it", stack_num, stack);
					shape_type= 1;
				}
				else {
					shape_type= 0;
				}
			}
		}
		/* handle <em> tag */
		if (font1.emph() != font2.emph()) {
			if (font2.emph() == LyXFont::ON) {
				push_tag(os, "em", stack_num, stack);
				is_em = true;
			} else if (is_em) {
				pop_tag(os, "em", stack_num, stack);
				is_em = false;
			}
		}

		c = par->GetChar(i);
      
		if (font2.latex() == LyXFont::ON) {
			// "TeX"-Mode on == > SGML-Mode on.
			if (c!= '\0')
				os << c; // see LaTeX-Generation...
			++char_line_count;
		} else if (c == LyXParagraph::META_INSET) {
			inset = par->GetInset(i);
			string tmp_out;
			inset->Linuxdoc(tmp_out);
			os << tmp_out;
		}
		else {
			string sgml_string;
			if (par->linuxDocConvertChar(c, sgml_string)
			    && !style.free_spacing) { // in freespacing
				                     // mode, spaces are
				                     // non-breaking characters
				// char is ' '
				if (desc_on == 1) {
					++char_line_count;
					linux_doc_line_break(os, char_line_count, 6);
					os << "</tag>";
					desc_on = 2;
				}
				else  {
					linux_doc_line_break(os, char_line_count, 1);
					os << c;
				}
			}
			else {
				os << sgml_string;
				char_line_count += sgml_string.length();
			}
		}
		font1 = font2;
	}

	/* needed if there is an optional argument but no contents */
	if (main_body > 0 && main_body == par->size()) {
		font1 = style.font;
	}

	/* pop all defined Styles */
	for (j = stack_num; j >= 0; --j) {
	        linux_doc_line_break(os, 
				     char_line_count, 
				     3 + strlen(stack[j]));
		os << "</" << stack[j] << ">";
	}

	/* resets description flag correctly */
	switch(desc_on){
	case 1:
		/* <tag> not closed... */
		linux_doc_line_break(os, char_line_count, 6);
		os << "</tag>";
		break;
	case 2:
	        /* fprintf(file, "</p>");*/
		break;
	}
}


/* print an error message */
void Buffer::LinuxDocError(LyXParagraph * par, int pos,
			   char const * message) 
{
	InsetError * new_inset;

	/* insert an error marker in text */
	new_inset = new InsetError(message);
	par->InsertChar(pos, LyXParagraph::META_INSET);
	par->InsertInset(pos, new_inset);
}

// This constant defines the maximum number of 
// environment layouts that can be nesteded.
// The same applies for command layouts.
// These values should be more than enough.
//           José Matos (1999/07/22)

enum { MAX_NEST_LEVEL = 25};

void Buffer::makeDocBookFile(string const & fname, int column)
{
	LyXParagraph * par = paragraph;

	string top_element= textclasslist.LatexnameOfClass(params.textclass);
	string environment_stack[MAX_NEST_LEVEL];
	string environment_inner[MAX_NEST_LEVEL];
	string command_stack[MAX_NEST_LEVEL];
	bool command_flag= false;
	int command_depth= 0, command_base= 0, cmd_depth= 0;

        string item_name, command_name;
	string c_depth, c_params, tmps;

	int depth= 0;              /* paragraph depth */

	tex_code_break_column = column; 

	ofstream ofs(fname.c_str());
	if (!ofs) {
		WriteAlert(_("LYX_ERROR:"), _("Cannot write file"), fname);
		return;
	}
   
	texrow.reset();

	ofs << "<!doctype " << top_element
	    << " public \"-//OASIS//DTD DocBook V3.1//EN\"";

	if (params.preamble.empty())
		ofs << ">\n\n";
	else
		ofs << "\n [ " << params.preamble << " \n]>\n\n";

	ofs << "<!-- DocBook file was created by " << LYX_DOCVERSION 
	    << "\n  See http://www.lyx.org/ for more information -->\n";

	if(params.options.empty())
		sgmlOpenTag(ofs, 0, top_element);
	else {
		string top = top_element;
		top += " ";
		top += params.options;
		sgmlOpenTag(ofs, 0, top);
	}

	while (par) {
		int desc_on = 0;            /* description mode*/
		LyXLayout const & style =
			textclasslist.Style(users->buffer()->params.textclass,
					    par->layout);
		par->AutoDeleteInsets();

		/* environment tag closing */
		for( ; depth > par->depth; --depth) {
			if(environment_inner[depth] != "!-- --") {
				item_name= "listitem";
				sgmlCloseTag(ofs, command_depth + depth,
					     item_name);
				if( environment_inner[depth] == "varlistentry")
					sgmlCloseTag(ofs, depth+command_depth,
						     environment_inner[depth]);
			}
			sgmlCloseTag(ofs, depth + command_depth,
				     environment_stack[depth]);
			environment_stack[depth].clear();
			environment_inner[depth].clear();
		}

		if(depth == par->depth
		   && environment_stack[depth] != style.latexname()
		   && !environment_stack[depth].empty()) {
			if(environment_inner[depth] != "!-- --") {
				item_name= "listitem";
				sgmlCloseTag(ofs, command_depth+depth,
					     item_name);
				if( environment_inner[depth] == "varlistentry")
					sgmlCloseTag(ofs,
						     depth + command_depth,
						     environment_inner[depth]);
			}
			
			sgmlCloseTag(ofs, depth + command_depth,
				     environment_stack[depth]);
			
			environment_stack[depth].clear();
			environment_inner[depth].clear();
                }

		// Write opening SGML tags.
		switch(style.latextype) {
		case LATEX_PARAGRAPH:
			if(style.latexname() != "dummy")
                               sgmlOpenTag(ofs, depth+command_depth,
                                           style.latexname());
			break;

		case LATEX_COMMAND:
			if (depth!= 0)
				LinuxDocError(par, 0,
					      _("Error : Wrong depth for "
						"LatexType Command.\n"));
			
			command_name = style.latexname();
			
			tmps = style.latexparam();
			c_params = split(tmps, c_depth,'|');
			
			cmd_depth= atoi(c_depth.c_str());
			
			if(command_flag) {
				if(cmd_depth<command_base) {
					for(int j = command_depth;
					    j >= command_base; --j)
						if(!command_stack[j].empty())
							sgmlCloseTag(ofs, j, command_stack[j]);
					command_depth= command_base= cmd_depth;
				}
				else if(cmd_depth <= command_depth) {
					for(int j = command_depth;
					    j >= cmd_depth; --j)

						if(!command_stack[j].empty())
							sgmlCloseTag(ofs, j, command_stack[j]);
					command_depth= cmd_depth;
				}
				else
					command_depth= cmd_depth;
			}
			else {
				command_depth = command_base = cmd_depth;
				command_flag = true;
			}
			command_stack[command_depth]= command_name;

			// treat label as a special case for
			// more WYSIWYM handling.
			if (par->GetChar(0) == LyXParagraph::META_INSET) {
			        Inset * inset = par->GetInset(0);
				char  lyx_code = inset->LyxCode();
				if (lyx_code == Inset::LABEL_CODE){
					command_name += " id=\"";
					command_name += (static_cast<InsetCommand *>(inset))->getContents();
					command_name += "\"";
					desc_on = 3;
				}
			}

			sgmlOpenTag(ofs, depth+command_depth, command_name);
			item_name = "title";
			sgmlOpenTag(ofs, depth + 1 + command_depth, item_name);
			break;

		case LATEX_ENVIRONMENT:
		case LATEX_ITEM_ENVIRONMENT:
			if (depth < par->depth) {
				depth = par->depth;
				environment_stack[depth].clear();
			}

			if (environment_stack[depth] != style.latexname()) {
				environment_stack[depth] = style.latexname();
				environment_inner[depth] = "!-- --";
				sgmlOpenTag(ofs, depth + command_depth,
					    environment_stack[depth]);
			} else {
				if(environment_inner[depth] != "!-- --") {
					item_name= "listitem";
					sgmlCloseTag(ofs,
						     command_depth + depth,
						     item_name);
					if (environment_inner[depth] == "varlistentry")
						sgmlCloseTag(ofs,
							     depth + command_depth,
							     environment_inner[depth]);
				}
			}
			
			if(style.latextype == LATEX_ENVIRONMENT) {
				if(!style.latexparam().empty())
			  		sgmlOpenTag(ofs, depth + command_depth,
						    style.latexparam());
				break;
			}

			desc_on = (style.labeltype == LABEL_MANUAL);

			if(desc_on)
				environment_inner[depth]= "varlistentry";
			else
				environment_inner[depth]= "listitem";

			sgmlOpenTag(ofs, depth + 1 + command_depth,
				    environment_inner[depth]);

			if(desc_on) {
				item_name= "term";
				sgmlOpenTag(ofs, depth + 1 + command_depth,
					    item_name);
			}
			else {
				item_name= "para";
				sgmlOpenTag(ofs, depth + 1 + command_depth,
					    item_name);
			}
			break;
		default:
			sgmlOpenTag(ofs, depth + command_depth,
				    style.latexname());
			break;
		}

		do {
			string tmp_par, extra_par;

			SimpleDocBookOnePar(tmp_par, extra_par, par, desc_on,
					    depth + 1 + command_depth);
			ofs << tmp_par;

			par = par->next;
			DocBookHandleFootnote(ofs, par,
					      depth + 1 + command_depth);
		}
		while(par && par->IsDummy());

		string end_tag;
		/* write closing SGML tags */
		switch(style.latextype) {
		case LATEX_COMMAND:
			end_tag = "title";
			sgmlCloseTag(ofs, depth + command_depth, end_tag);
			break;
		case LATEX_ENVIRONMENT:
			if(!style.latexparam().empty())
				sgmlCloseTag(ofs, depth + command_depth,
					     style.latexparam());
			break;
		case LATEX_ITEM_ENVIRONMENT:
			if(desc_on == 1) break;
			end_tag= "para";
			sgmlCloseTag(ofs, depth + 1 + command_depth, end_tag);
			break;
		case LATEX_PARAGRAPH:
			if(style.latexname() != "dummy")
				sgmlCloseTag(ofs, depth + command_depth,
					     style.latexname());
			break;
		default:
			sgmlCloseTag(ofs, depth + command_depth,
				     style.latexname());
			break;
		}
	}

	// Close open tags
	for(; depth >= 0; --depth) {
		if(!environment_stack[depth].empty()) {
			if(environment_inner[depth] != "!-- --") {
				item_name= "listitem";
				sgmlCloseTag(ofs, command_depth + depth,
					     item_name);
                               if( environment_inner[depth] == "varlistentry")
				       sgmlCloseTag(ofs, depth + command_depth,
						    environment_inner[depth]);
			}
			
			sgmlCloseTag(ofs, depth + command_depth,
				     environment_stack[depth]);
		}
	}
	
	for(int j = command_depth; j >= command_base; --j)
		if(!command_stack[j].empty())
			sgmlCloseTag(ofs, j, command_stack[j]);

	ofs << "\n\n";
	sgmlCloseTag(ofs, 0, top_element);

	ofs.close();
	// How to check for successful close
}


void Buffer::SimpleDocBookOnePar(string & file, string & extra,
				 LyXParagraph * par, int & desc_on,
				 int const depth) 
{
	if (par->table) {
		par->SimpleDocBookOneTablePar(file, extra, desc_on, depth);
		return;
	}
	LyXFont font1, font2;
	char c;
	Inset *inset;
	LyXParagraph::size_type main_body;
	int j;
	string emph= "emphasis";
	bool emph_flag= false;
	int char_line_count= 0;

	LyXLayout const & style = textclasslist.Style(params.textclass,
						      par->GetLayout());

	if (style.labeltype != LABEL_MANUAL)
		main_body = 0;
	else
		main_body = par->BeginningOfMainBody();

	/* gets paragraph main font */
	if (main_body > 0)
		font1 = style.labelfont;
	else
		font1 = style.font;

	char_line_count = depth;
	if(!style.free_spacing)
		for (j = 0; j < depth; ++j)
			file += ' ';

	/* parsing main loop */
	for (LyXParagraph::size_type i = 0;
	     i < par->size(); ++i) {
		font2 = par->getFont(i);

		/* handle <emphasis> tag */
		if (font1.emph() != font2.emph() && i) {
			if (font2.emph() == LyXFont::ON) {
				file += "<emphasis>";
				emph_flag= true;
			}else {
				file += "</emphasis>";
				emph_flag= false;
			}
		}
      
		c = par->GetChar(i);

		if (c == LyXParagraph::META_INSET) {
			inset = par->GetInset(i);
			string tmp_out;
			inset->DocBook(tmp_out);
			//
			// This code needs some explanation:
			// Two insets are treated specially
			//   label if it is the first element in a command paragraph
			//         desc_on == 3
			//   graphics inside tables or figure floats can't go on
			//   title (the equivalente in latex for this case is caption
			//   and title should come first
			//         desc_on == 4
			//
			if(desc_on!= 3 || i!= 0) {
				if(!tmp_out.empty() && tmp_out[0] == '@') {
					if(desc_on == 4)
						extra += frontStrip(tmp_out, '@');
					else
						file += frontStrip(tmp_out, '@');
				}
				else
					file += tmp_out;
			}
		} else if (font2.latex() == LyXFont::ON) {
			// "TeX"-Mode on ==> SGML-Mode on.
			if (c!= '\0')
				file += c;
			++char_line_count;
		}
		else {
			string sgml_string;
			if (par->linuxDocConvertChar(c, sgml_string)
			    && !style.free_spacing) { // in freespacing
				                     // mode, spaces are
				                     // non-breaking characters
				// char is ' '
				if (desc_on == 1) {
					++char_line_count;
					file += '\n';
					file += "</term><listitem><para>";
					desc_on = 2;
				}
				else  {
					file += c;
				}
			}
			else {
				file += sgml_string;
			}
		}
		font1 = font2;
	}

	/* needed if there is an optional argument but no contents */
	if (main_body > 0 && main_body == par->size()) {
		font1 = style.font;
	}
	if (emph_flag) {
		file += "</emphasis>";
	}
	
	/* resets description flag correctly */
	switch(desc_on){
	case 1:
		/* <term> not closed... */
		file += "</term>";
		break;
	}
	file += '\n';
}


int Buffer::runLaTeX()
{
	if (!users->text) return 0;

	ProhibitInput();

	// get LaTeX-Filename
	string name = getLatexName();

	string path = OnlyPath(filename);

	string org_path = path;
	if (lyxrc->use_tempdir || (IsDirWriteable(path) < 1)) {
		path = tmppath;	 
	}

	Path p(path); // path to LaTeX file
	users->owner()->getMiniBuffer()->Set(_("Running LaTeX..."));   

	// Remove all error insets
	bool a = users->removeAutoInsets();

	// Always generate the LaTeX file
	makeLaTeXFile(name, org_path, false);
	markDviDirty();

	// do the LaTex run(s)
	TeXErrors terr;
	string latex_command = lyxrc->pdf_mode ?
		lyxrc->pdflatex_command : lyxrc->latex_command;
	LaTeX latex(latex_command, name, filepath);
	int res = latex.run(terr,
			    users->owner()->getMiniBuffer()); // running latex

	// check return value from latex.run().
	if ((res & LaTeX::NO_LOGFILE)) {
		WriteAlert(_("LaTeX did not work!"),
			   _("Missing log file:"), name);
	} else if ((res & LaTeX::ERRORS)) {
		users->owner()->getMiniBuffer()->Set(_("Done"));
		// Insert all errors as errors boxes
		users->insertErrors(terr);
		
		// Dvi should also be kept dirty if the latex run
		// ends up with errors. However it should be possible
		// to view a dirty dvi too.
	} else {
		//no errors or any other things to think about so:
		users->owner()->getMiniBuffer()->Set(_("Done"));
		markDviClean();
	}

	// if we removed error insets before we ran LaTeX or if we inserted
	// error insets after we ran LaTeX this must be run:
        if (a || (res & LaTeX::ERRORS)){
                users->redraw();
                users->fitCursor();
                users->updateScrollbar();
        }
        AllowInput();
 
        return latex.getNumErrors();
}


int Buffer::runLiterate()
{
	if (!users->text) return 0;

	ProhibitInput();

	// get LaTeX-Filename
	string name = getLatexName();
        // get Literate-Filename
        string lit_name = ChangeExtension (getLatexName(), 
					   lyxrc->literate_extension, true);

	string path = OnlyPath(filename);

	string org_path = path;
	if (lyxrc->use_tempdir || (IsDirWriteable(path) < 1)) {
		path = tmppath;	 
	}

	Path p(path); // path to Literate file
	users->owner()->getMiniBuffer()->Set(_("Running Literate..."));   

	// Remove all error insets
	bool a = users->removeAutoInsets();

	// generate the Literate file if necessary
	if (!isDviClean() || a) {
		makeLaTeXFile(lit_name, org_path, false);
		markDviDirty();
	}

	string latex_command = lyxrc->pdf_mode ?
		lyxrc->pdflatex_command : lyxrc->latex_command;
        Literate literate(latex_command, name, filepath, 
			  lit_name,
			  lyxrc->literate_command, lyxrc->literate_error_filter,
			  lyxrc->build_command, lyxrc->build_error_filter);
	TeXErrors terr;
	int res = literate.weave(terr, users->owner()->getMiniBuffer());

	// check return value from literate.weave().
	if ((res & Literate::NO_LOGFILE)) {
		WriteAlert(_("Literate command did not work!"),
			   _("Missing log file:"), name);
	} else if ((res & Literate::ERRORS)) {
		users->owner()->getMiniBuffer()->Set(_("Done"));
		// Insert all errors as errors boxes
		users->insertErrors(terr);
		
		// Dvi should also be kept dirty if the latex run
		// ends up with errors. However it should be possible
		// to view a dirty dvi too.
	} else {
		//no errors or any other things to think about so:
		users->owner()->getMiniBuffer()->Set(_("Done"));
		markDviClean();
	}

	// if we removed error insets before we ran LaTeX or if we inserted
	// error insets after we ran LaTeX this must be run:
        if (a || (res & Literate::ERRORS)){
                users->redraw();
                users->fitCursor();
                users->updateScrollbar();
        }
        AllowInput();
 
        return literate.getNumErrors();
}


int Buffer::buildProgram()
{
        if (!users->text) return 0;
 
        ProhibitInput();
 
        // get LaTeX-Filename
        string name = getLatexName();
        // get Literate-Filename
        string lit_name = ChangeExtension(getLatexName(), 
					  lyxrc->literate_extension, true);
 
        string path = OnlyPath(filename);
 
        string org_path = path;
        if (lyxrc->use_tempdir || (IsDirWriteable(path) < 1)) {
                path = tmppath;  
        }
 
        Path p(path); // path to Literate file
        users->owner()->getMiniBuffer()->Set(_("Building Program..."));   
 
        // Remove all error insets
        bool a = users->removeAutoInsets();
 
        // generate the LaTeX file if necessary
        if (!isNwClean() || a) {
                makeLaTeXFile(lit_name, org_path, false);
                markNwDirty();
        }

	string latex_command = lyxrc->pdf_mode ?
		lyxrc->pdflatex_command : lyxrc->latex_command;
        Literate literate(latex_command, name, filepath, 
			  lit_name,
			  lyxrc->literate_command, lyxrc->literate_error_filter,
			  lyxrc->build_command, lyxrc->build_error_filter);
        TeXErrors terr;
        int res = literate.build(terr, users->owner()->getMiniBuffer());
 
        // check return value from literate.build().
        if ((res & Literate::NO_LOGFILE)) {
                WriteAlert(_("Build did not work!"),
                           _("Missing log file:"), name);
        } else if ((res & Literate::ERRORS)) {
                users->owner()->getMiniBuffer()->Set(_("Done"));
                // Insert all errors as errors boxes
		users->insertErrors(terr);
                
                // Literate files should also be kept dirty if the literate 
                // command run ends up with errors.
        } else {
                //no errors or any other things to think about so:
                users->owner()->getMiniBuffer()->Set(_("Done"));
                markNwClean();
        }
 
        // if we removed error insets before we ran Literate/Build or if we inserted
        // error insets after we ran Literate/Build this must be run:
	if (a || (res & Literate::ERRORS)){
		users->redraw();
		users->fitCursor();
		users->updateScrollbar();
	}
	AllowInput();

	return literate.getNumErrors();
}


// This should be enabled when the Chktex class is implemented. (Asger)
// chktex should be run with these flags disabled: 3, 22, 25, 30, 38(?)
// Other flags: -wall -v0 -x
int Buffer::runChktex()
{
	if (!users->text) return 0;

	ProhibitInput();

	// get LaTeX-Filename
	string name = getLatexName();
	string path = OnlyPath(filename);

	string org_path = path;
	if (lyxrc->use_tempdir || (IsDirWriteable(path) < 1)) {
		path = tmppath;	 
	}

	Path p(path); // path to LaTeX file
	users->owner()->getMiniBuffer()->Set(_("Running chktex..."));

	// Remove all error insets
	bool a = users->removeAutoInsets();

	// Generate the LaTeX file if neccessary
	if (!isDviClean() || a) {
		makeLaTeXFile(name, org_path, false);
		markDviDirty();
	}

	TeXErrors terr;
	Chktex chktex(lyxrc->chktex_command, name, filepath);
	int res = chktex.run(terr); // run chktex

	if (res == -1) {
		WriteAlert(_("chktex did not work!"),
			   _("Could not run with file:"), name);
	} else if (res > 0) {
		// Insert all errors as errors boxes
		users->insertErrors(terr);
	}

	// if we removed error insets before we ran chktex or if we inserted
	// error insets after we ran chktex, this must be run:
	if (a || res){
		users->redraw();
		users->fitCursor();
		users->updateScrollbar();
	}
	AllowInput();

	return res;
}


#if 0
void Buffer::RoffAsciiTable(ostream & os, LyXParagraph * par)
{
	LyXFont font1(LyXFont::ALL_INHERIT);
	LyXFont font2;
	Inset * inset;
	LyXParagraph::size_type i;
	int j, cell = 0;
	char c;
	
	string fname1 = TmpFileName(string(), "RAT1");
	string fname2 = TmpFileName(string(), "RAT2");

	ofstream ofs(fname1.c_str());
	if (!ofs) {
		WriteAlert(_("LYX_ERROR:"),
			   _("Cannot open temporary file:"), fname1);
		return;
	}
	par->table->RoffEndOfCell(ofs, -1);
	for (i = 0; i < par->size(); ++i) {
		c = par->GetChar(i);
		if (par->table->IsContRow(cell)) {
			if (c == LyXParagraph::META_NEWLINE)
				++cell;
			continue;
		}
		font2 = par->GetFontSettings(i);
		if (font1.latex() != font2.latex()) {
			if (font2.latex() != LyXFont::OFF)
				continue;
		}
		switch (c) {
		case LyXParagraph::META_INSET:
			if ((inset = par->GetInset(i))) {
#if 1
#ifdef HAVE_SSTREAM
				stringstresm ss(ios::in | ios::out);
				inset->Latex(ss, -1);
				ss.seekp(0);
				ss.get(c);
				while (!ss) {
					if (c == '\\')
						ofs << "\\\\";
					else
						ofs << c;
					ss.get(c);
				}
#else
				strstream ss;
				inset->Latex(ss, -1);
				ss.seekp(0);
				ss.get(c);
				while (!ss) {
					if (c == '\\')
						ofs << "\\\\";
					else
						ofs << c;
					ss.get(c);
				}
				delete [] ss.str();
#endif
#else
				fstream fs(fname2.c_str(), ios::in|ios::out);
				if (!fs) {
					WriteAlert(_("LYX_ERROR:"),
						   _("Cannot open temporary file:"), fname2);
					ofs.close();
					remove(fname1.c_str());
					return;
				}
				inset->Latex(fs, -1);
				fs.seekp(0);
				fs.get(c);
				while(!fs) {
					if (c == '\\')
						ofs << "\\\\";
					else
						ofs << c;
					fs >> c;
				}
				fs.close();
#endif
			}
			break;
		case LyXParagraph::META_NEWLINE:
			if (par->table->CellHasContRow(cell)>= 0)
				par->RoffContTableRows(ofs, i+1, cell);
			par->table->RoffEndOfCell(ofs, cell);
			++cell;
			break;
		case LyXParagraph::META_HFILL: 
			break;
#if 0
		case LyXParagraph::META_PROTECTED_SEPARATOR:
			break;
#endif
		case '\\': 
			ofs << "\\\\";
			break;
		default:
			if (c != '\0')
				ofs << c;
			else if (c == '\0')
				lyxerr.debug()
					<< "RoffAsciiTable:"
					" NULL char in structure." << endl;
			break;
		}
	}
	par->table->RoffEndOfCell(ofs, cell);
	ofs.close();
	string cmd = lyxrc->ascii_roff_command + " >" + fname2;
	cmd = subst(cmd, "$$FName", fname1);
	Systemcalls one(Systemcalls::System, cmd);
	if (!(lyxerr.debugging(Debug::ROFF))) {
		remove(fname1.c_str());
	}
	ifstream ifs(fname2.c_str());
	if (!ifs) {
		WriteFSAlert(_("Error! Can't open temporary file:"), fname2);
		return;
	}
	// now output the produced file
	os << "\n\n";
	ifs.get(c);
	if (!ifs)
		WriteAlert(_("Error!"),
			   _("Error executing *roff command on table"));
	// overread leading blank lines
	while(!ifs && (c == '\n'))
		ifs.get(c);
	while(!ifs) {
		for(j = 0; j < par->depth; ++j)
			os << "  ";
		while(!ifs && (c != '\n')) {
			os << c;
			ifs.get(c);
		}
		os << '\n';
		// overread trailing blank lines
		while(!ifs && (c == '\n'))
			ifs.get(c);
	}
	ifs.close();
	remove(fname2.c_str());
}
#endif

	
/// changed Heinrich Bauer, 23/03/98
bool Buffer::isDviClean() const
{
  if (lyxrc->use_tempdir)
    return dvi_clean_tmpd;
  else
    return dvi_clean_orgd;
}

 
/// changed Heinrich Bauer, 23/03/98
void Buffer::markDviClean()
{
  if (lyxrc->use_tempdir)
    dvi_clean_tmpd = true;
  else
    dvi_clean_orgd = true;
}


/// changed Heinrich Bauer, 23/03/98
void Buffer::markDviDirty()
{
  if (lyxrc->use_tempdir)
    dvi_clean_tmpd = false;
  else
    dvi_clean_orgd = false;
}


void Buffer::validate(LaTeXFeatures & features) const
{
	LyXParagraph * par = paragraph;
        LyXTextClass const & tclass = 
		textclasslist.TextClass(params.textclass);
    
        // AMS Style is at document level
    
        features.amsstyle = (params.use_amsmath ||
			     tclass.provides(LyXTextClass::amsmath));
    
	while (par) {
		// We don't use "lyxerr.debug" because of speed. (Asger)
		if (lyxerr.debugging(Debug::LATEX))
			lyxerr << "Paragraph: " <<  par << endl;

		// Now just follow the list of paragraphs and run
		// validate on each of them.
		par->validate(features);

		// and then the next paragraph
		par = par->next;
	}

	// the bullet shapes are buffer level not paragraph level
	// so they are tested here
	for (int i = 0; i < 4; ++i) {
		if (params.user_defined_bullets[i] != ITEMIZE_DEFAULTS[i]) {
			int font = params.user_defined_bullets[i].getFont();
			if (font == 0) {
				int c = params
					.user_defined_bullets[i]
					.getCharacter();
				if (c == 16
				   || c == 17
				   || c == 25
				   || c == 26
				   || c == 31) {
					features.latexsym = true;
				}
			}
			if (font == 1) {
				features.amssymb = true;
			}
			else if ((font >= 2 && font <= 5)) {
				features.pifont = true;
			}
		}
	}
	
	if (lyxerr.debugging(Debug::LATEX)) {
		features.showStruct(params);
	}
}


void Buffer::setPaperStuff()
{
	params.papersize = BufferParams::PAPER_DEFAULT;
	char c1 = params.paperpackage;
	if (c1 == BufferParams::PACKAGE_NONE) {
		char c2 = params.papersize2;
		if (c2 == BufferParams::VM_PAPER_USLETTER)
			params.papersize = BufferParams::PAPER_USLETTER;
		else if (c2 == BufferParams::VM_PAPER_USLEGAL)
			params.papersize = BufferParams::PAPER_LEGALPAPER;
		else if (c2 == BufferParams::VM_PAPER_USEXECUTIVE)
			params.papersize = BufferParams::PAPER_EXECUTIVEPAPER;
		else if (c2 == BufferParams::VM_PAPER_A3)
			params.papersize = BufferParams::PAPER_A3PAPER;
		else if (c2 == BufferParams::VM_PAPER_A4)
			params.papersize = BufferParams::PAPER_A4PAPER;
		else if (c2 == BufferParams::VM_PAPER_A5)
			params.papersize = BufferParams::PAPER_A5PAPER;
		else if ((c2 == BufferParams::VM_PAPER_B3) || (c2 == BufferParams::VM_PAPER_B4) ||
			 (c2 == BufferParams::VM_PAPER_B5))
			params.papersize = BufferParams::PAPER_B5PAPER;
	} else if ((c1 == BufferParams::PACKAGE_A4) || (c1 == BufferParams::PACKAGE_A4WIDE) ||
		   (c1 == BufferParams::PACKAGE_WIDEMARGINSA4))
		params.papersize = BufferParams::PAPER_A4PAPER;
}


// This function should be in Buffer because it's a buffer's property (ale)
string Buffer::getIncludeonlyList(char delim)
{
	string lst;
	LyXParagraph * par = paragraph;
	LyXParagraph::size_type pos;
	Inset * inset;
	while (par){
		pos = -1;
		while ((inset = par->ReturnNextInsetPointer(pos))){
			if (inset->LyxCode() == Inset::INCLUDE_CODE) {
				InsetInclude * insetinc = 
					static_cast<InsetInclude*>(inset);
				if (insetinc->isInclude() 
				    && insetinc->isNoLoad()) {
					if (!lst.empty())
						lst += delim;
					lst += ChangeExtension(insetinc->getContents(), string(), true);
				}
			}
			++pos;
		} 
		par = par->next;
	}
	lyxerr.debug() << "Includeonly(" << lst << ')' << endl;
	return lst;
}


// This is also a buffer property (ale)
string Buffer::getReferenceList(char delim)
{
	/// if this is a child document and the parent is already loaded
	/// Use the parent's list instead  [ale990407]
	if (!params.parentname.empty()
	    && bufferlist.exists(params.parentname)) {
		Buffer * tmp = bufferlist.getBuffer(params.parentname);
		if (tmp)
			return tmp->getReferenceList(delim);
	}

	LyXParagraph * par = paragraph;
	LyXParagraph::size_type pos;
	Inset * inset;
        string lst;
	while (par) {
		pos = -1;
		while ((inset = par->ReturnNextInsetPointer(pos))){     
			for (int i = 0; i < inset->GetNumberOfLabels(); ++i) {
				if (!lst.empty())
					lst += delim;
				lst += inset->getLabel(i);
			}
			++pos;
		}
		par = par->next;
	}
	lyxerr.debug() << "References(" <<  lst << ")" << endl;
	return lst;
}


// This is also a buffer property (ale)
string Buffer::getBibkeyList(char delim)
{
	/// if this is a child document and the parent is already loaded
	/// Use the parent's list instead  [ale990412]
        if (!params.parentname.empty() && bufferlist.exists(params.parentname)) {
		Buffer * tmp = bufferlist.getBuffer(params.parentname);
		if (tmp)
			return tmp->getBibkeyList(delim);
	}

	string bibkeys;
	LyXParagraph * par = paragraph;
	while (par) {
		if (par->bibkey) {
			if (!bibkeys.empty())
				bibkeys += delim;
			bibkeys += par->bibkey->getContents();
		}
		par = par->next;
	}

	// Might be either using bibtex or a child has bibliography
	if (bibkeys.empty()) {
		par = paragraph;
		while (par) {
			Inset * inset;
			LyXParagraph::size_type pos = -1;

			// Search for Bibtex or Include inset
			while ((inset = par->ReturnNextInsetPointer(pos))) {
				if (inset-> LyxCode() == Inset::BIBTEX_CODE) {
					if (!bibkeys.empty())
						bibkeys += delim;
					bibkeys += static_cast<InsetBibtex*>(inset)->getKeys(delim);
				} else if (inset-> LyxCode() == Inset::INCLUDE_CODE) {
					string bk = static_cast<InsetInclude*>(inset)->getKeys(delim);
					if (!bk.empty()) {
						if (!bibkeys.empty())
							bibkeys += delim;
						bibkeys += bk;
					}
				}
				++pos;
			}
			par = par->next;
		}
	}
 
	lyxerr.debug() << "Bibkeys(" << bibkeys << ")" << endl;
	return bibkeys;
}


bool Buffer::isDepClean(string const & name) const
{
	DEPCLEAN * item = dep_clean;
	while (item && item->master != name)
		item = item->next;
	if (!item) return true;
	return item->clean;
}


void Buffer::markDepClean(string const & name)
{
	if (!dep_clean) {
		dep_clean = new DEPCLEAN;
		dep_clean->clean = true;
		dep_clean->master = name;
		dep_clean->next = 0;
	} else {
		DEPCLEAN* item = dep_clean;
		while (item && item->master != name)
			item = item->next;
		if (item) {
			item->clean = true;
		} else {
			item = new DEPCLEAN;
			item->clean = true;
			item->master = name;
			item->next = 0;;
		}
	}
}


void Buffer::Dispatch(string const & command)
{
	// Split command string into command and argument
	string cmd, line = frontStrip(command);
	string arg = strip(frontStrip(split(line, cmd, ' ')));

	Dispatch(lyxaction.LookupFunc(cmd.c_str()), arg.c_str());
}


void Buffer::Dispatch(int action, string const & argument)
{
	switch (action) {
		case LFUN_EXPORT: 
			MenuExport(this, argument);
			break;

		default:
			lyxerr << "A truly unknown func!" << endl;
		break;

	} // end of switch
}