X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FLaTeXFeatures.C;h=9cbbc3288c564c9e76c60aa34443f15740d92782;hb=ff6706002f89b9c10b98ebd08c00962aacf0a4c7;hp=b291666dc27b6ab45c6de470f0390e0678d2b0b6;hpb=b1c4f8070feac7b2cc6d0054cc305dc3a6e918b8;p=lyx.git

diff --git a/src/LaTeXFeatures.C b/src/LaTeXFeatures.C
index b291666dc2..9cbbc3288c 100644
--- a/src/LaTeXFeatures.C
+++ b/src/LaTeXFeatures.C
@@ -1,202 +1,275 @@
-/* This file is part of
- * ====================================================== 
- * 
- *           LyX, The Document Processor
- *        
- *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2001 the LyX Team.
+/**
+ * \file LaTeXFeatures.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- * ====================================================== */
+ * \author José Matos
+ * \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
+ * \author Jürgen Vigna
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation "LaTeXFeatures.h"
-#endif
+#include "LaTeXFeatures.h"
 
-#include "LString.h"
+#include "bufferparams.h"
 #include "debug.h"
+#include "encoding.h"
+#include "Floating.h"
+#include "FloatList.h"
+#include "language.h"
 #include "lyx_sty.h"
 #include "lyxrc.h"
-#include "LaTeXFeatures.h"
-#include "bufferparams.h"
-#include "layout.h"
+
 #include "support/filetools.h"
-#include "FloatList.h"
-#include "language.h"
+
+#include "support/std_sstream.h"
+
+using lyx::support::IsSGMLFilename;
+using lyx::support::MakeRelPath;
+using lyx::support::OnlyPath;
 
 using std::endl;
+using std::find;
+using std::string;
+using std::list;
+using std::ostream;
+using std::ostringstream;
+using std::set;
 
-LaTeXFeatures::LaTeXFeatures(BufferParams const & p, LyXTextClass::size_type n)
-	: layout(n, false), params(p)
-{
-	// packages
-	array = false;
-	color = false;
-	graphics = false; // INSET_GRAPHICS: remove this when InsetFig is thrown.
-	graphicx = false;
-	setspace = false;
-	makeidx = false;
-	verbatim = false;
-	longtable = false;
-	//algorithm = false;
-	rotating = false;
-	amssymb = false;
-	latexsym = false;
-	pifont = false;
-	subfigure = false;
-	floatflt = false;
-	url = false;
-	varioref = false;
-	prettyref = false;
-	chess = false;
-	
-	// commands
-	lyx = false;
-	lyxline = false;
-	noun = false;
-	lyxarrow = false;
-
-	// quotes
-	quotesinglbase = false;
-	quotedblbase = false;
-	guilsinglleft = false;
-	guilsinglright = false;
-	guillemotleft = false;
-	guillemotright = false;
 
-	// Math mode
-	amsstyle = false;
-	binom = false;
-	boldsymbol = false;
-    
-	// special features
-	ParagraphIndent = false;
-	NeedLyXFootnoteCode = false;
-	NeedLyXMinipageIndent = false;
+LaTeXFeatures::LaTeXFeatures(Buffer const & b, BufferParams const & p, bool n)
+	: buffer_(&b), params_(p), nice_(n)
+{}
+
+
+bool LaTeXFeatures::useBabel() const
+{
+	return lyxrc.language_use_babel ||
+		bufferParams().language->lang() != lyxrc.default_language ||
+		this->hasLanguages();
 }
 
 
 void LaTeXFeatures::require(string const & name)
 {
-	if (name == "array") {
-		array = true;
-	} else if (name == "color") {
-		color = true;
-	} else if (name == "graphics") {
-		graphicx = true;
-		graphics = true;// INSET_GRAPHICS: remove this when InsetFig is thrown.
-	} else if (name == "setspace") {
-		setspace = true;
-	} else if (name == "makeidx") {
-		makeidx = true;
-	} else if (name == "verbatim") {
-		verbatim = true;
-	} else if (name == "longtable") {
-		longtable = true;
-	//} else if (name == "algorithm") {
-	//algorithm = true;
-	} else if (name == "rotating") {
-		rotating = true;
-	} else if (name == "amssymb") {
-		amssymb = true;
-	} else if (name == "latexsym") {
-		latexsym = true;
-	} else if (name == "pifont") {
-		pifont = true;
-	} else if (name == "subfigure") {
-		subfigure = true;
-	} else if (name == "floatflt") {
-		floatflt = true;
-	} else if (name == "url") {
-		url = true;
-	} else if (name == "varioref") {
-		varioref = true;
-	} else if (name == "prettyref") {
-		prettyref = true;
-	} else if (name == "chess") {
-		chess = true;
-	} else if (name == "amsstyle") {
-		amsstyle = true;
-	} else if (name == "boldsymbol") {
-		boldsymbol = true;
-	} else if (name == "binom") {
-		binom = true;
+	if (isRequired(name))
+		return;
+
+	features_.push_back(name);
+}
+
+
+void LaTeXFeatures::useLayout(string const & layoutname)
+{
+	// Some code to avoid loops in dependency definition
+	static int level = 0;
+	const int maxlevel = 30;
+	if (level > maxlevel) {
+		lyxerr << "LaTeXFeatures::useLayout: maximum level of "
+		       << "recursion attained by layout "
+		       << layoutname << endl;
+		return;
+	}
+
+	LyXTextClass const & tclass = params_.getLyXTextClass();
+	if (tclass.hasLayout(layoutname)) {
+		// Is this layout already in usedLayouts?
+		list<string>::const_iterator cit = usedLayouts_.begin();
+		list<string>::const_iterator end = usedLayouts_.end();
+		for (; cit != end; ++cit) {
+			if (layoutname == *cit)
+				return;
+		}
+
+		LyXLayout_ptr const & lyt = tclass[layoutname];
+		if (!lyt->depends_on().empty()) {
+			++level;
+			useLayout(lyt->depends_on());
+			--level;
+		}
+		usedLayouts_.push_back(layoutname);
+	} else {
+		lyxerr << "LaTeXFeatures::useLayout: layout `"
+		       << layoutname << "' does not exist in this class"
+		       << endl;
+	}
+
+	--level;
+}
+
+
+bool LaTeXFeatures::isRequired(string const & name) const
+{
+	return find(features_.begin(), features_.end(), name) != features_.end();
+}
+
+
+void LaTeXFeatures::addExternalPreamble(string const & preamble)
+{
+	FeaturesList::const_iterator begin = preamble_snippets_.begin();
+	FeaturesList::const_iterator end   = preamble_snippets_.end();
+	if (find(begin, end, preamble) == end)
+		preamble_snippets_.push_back(preamble);
+}
+
+
+void LaTeXFeatures::useFloat(string const & name)
+{
+	usedFloats_.insert(name);
+	// We only need float.sty if we use non builtin floats, or if we
+	// use the "H" modifier. This includes modified table and
+	// figure floats. (Lgb)
+	Floating const & fl = params_.getLyXTextClass().floats().getType(name);
+	if (!fl.type().empty() && !fl.builtin()) {
+		require("float");
 	}
 }
 
 
+void LaTeXFeatures::useLanguage(Language const * lang)
+{
+	UsedLanguages_.insert(lang);
+}
+
+
+void LaTeXFeatures::includeFile(string const & key, string const & name)
+{
+	IncludedFiles_[key] = name;
+}
+
+
+bool LaTeXFeatures::hasLanguages() const
+{
+	return !UsedLanguages_.empty();
+}
+
+
+string LaTeXFeatures::getLanguages() const
+{
+	ostringstream languages;
+
+	for (LanguageList::const_iterator cit =
+		    UsedLanguages_.begin();
+	     cit != UsedLanguages_.end();
+	     ++cit)
+		languages << (*cit)->babel() << ',';
+
+	return languages.str();
+}
+
+
+set<string> LaTeXFeatures::getEncodingSet(string const & doc_encoding) const
+{
+	set<string> encodings;
+	LanguageList::const_iterator it  = UsedLanguages_.begin();
+	LanguageList::const_iterator end = UsedLanguages_.end();
+	for (; it != end; ++it)
+		if ((*it)->encoding()->LatexName() != doc_encoding)
+			encodings.insert((*it)->encoding()->LatexName());
+	return encodings;
+}
+
+namespace {
+
+char const * simplefeatures[] = {
+	"array",
+	"verbatim",
+	"longtable",
+	"rotating",
+	"latexsym",
+	"pifont",
+	"subfigure",
+	"floatflt",
+	"varioref",
+	"prettyref",
+	"float",
+	"wasy",
+	"dvipost",
+	"fancybox",
+	"calc",
+	"jurabib"
+};
+
+int const nb_simplefeatures = sizeof(simplefeatures) / sizeof(char const *);
+
+}
+
+
 string const LaTeXFeatures::getPackages() const
 {
 	ostringstream packages;
-	LyXTextClass const & tclass =
-		textclasslist.TextClass(params.textclass);
+	LyXTextClass const & tclass = params_.getLyXTextClass();
+
+	//
+	//  These are all the 'simple' includes.  i.e
+	//  packages which we just \usepackage{package}
+	//
+	for (int i = 0; i < nb_simplefeatures; ++i) {
+		if (isRequired(simplefeatures[i]))
+			packages << "\\usepackage{"
+				 << simplefeatures[i] << "}\n";
+	}
+
+	//
+	// The rest of these packages are somewhat more complicated
+	// than those above.
+	//
 
-	// array-package
-	if (array)
-		packages << "\\usepackage{array}\n";
+	if (isRequired("amsmath")
+	    && !tclass.provides(LyXTextClass::amsmath)
+	    && params_.use_amsmath != BufferParams::AMS_OFF) {
+		packages << "\\usepackage{amsmath}\n";
+	}
 
 	// color.sty
-	if (color) {
-		if (params.graphicsDriver == "default")
-			packages << "\\usepackage{color}\n";
+	if (isRequired("color")) {
+		if (params_.graphicsDriver == "default")
+			packages << "\\usepackage[usenames]{color}\n";
 		else
-			packages << "\\usepackage[" 
-				 << params.graphicsDriver
+			packages << "\\usepackage["
+				 << params_.graphicsDriver
+				 << ",usenames"
 				 << "]{color}\n";
 	}
-		
+
 	// makeidx.sty
-	if (makeidx) {
-		if (! tclass.provides(LyXTextClass::makeidx)
-		    && params.language->babel() != "french") // french provides
-						             // \index !
-			// French should not be hardcoded. (Lgb)
+	if (isRequired("makeidx")) {
+		if (! tclass.provides(LyXTextClass::makeidx))
 			packages << "\\usepackage{makeidx}\n";
 		packages << "\\makeindex\n";
 	}
 
 	// graphicx.sty
-	if (graphicx && params.graphicsDriver != "none") {
-		if (params.graphicsDriver == "default")
+	if (isRequired("graphicx") && params_.graphicsDriver != "none") {
+		if (params_.graphicsDriver == "default")
 			packages << "\\usepackage{graphicx}\n";
 		else
-			packages << "\\usepackage[" 
-				 << params.graphicsDriver
+			packages << "\\usepackage["
+				 << params_.graphicsDriver
 				 << "]{graphicx}\n";
 	}
 
-	// INSET_GRAPHICS: remove this when InsetFig is thrown.
-	// graphics.sty
-	if (graphics && params.graphicsDriver != "none") {
-		if (params.graphicsDriver == "default")
-			packages << "\\usepackage{graphics}\n";
-		else
-			packages << "\\usepackage[" 
-				 << params.graphicsDriver
-				 << "]{graphics}\n";
-	}
-
-	// verbatim.sty
-	if (verbatim)
-		packages << "\\usepackage{verbatim}\n";
-
 	//if (algorithm) {
 	//	packages << "\\usepackage{algorithm}\n";
 	//}
 
-	// lyxchess.sty
-	if (chess) {
-		packages << "\\usepackage{lyxchess}\n";
+	// lyxskak.sty --- newer chess support based on skak.sty
+	if (isRequired("chess")) {
+		packages << "\\usepackage[ps,mover]{lyxskak}\n";
 	}
 
 	// setspace.sty
-	if ((params.spacing.getSpace() != Spacing::Single
-	     && !params.spacing.isDefault())
-	    || setspace) {
+	if ((params_.spacing().getSpace() != Spacing::Single
+	     && !params_.spacing().isDefault())
+	    || isRequired("setspace")) {
 		packages << "\\usepackage{setspace}\n";
 	}
-	switch (params.spacing.getSpace()) {
+	switch (params_.spacing().getSpace()) {
 	case Spacing::Default:
 	case Spacing::Single:
 		// we dont use setspace.sty so dont print anything
@@ -210,72 +283,37 @@ string const LaTeXFeatures::getPackages() const
 		break;
 	case Spacing::Other:
 		packages << "\\setstretch{"
-			 << params.spacing.getValue() << "}\n";
+			 << params_.spacing().getValue() << "}\n";
 		break;
 	}
 
-	//longtable.sty
-	if (longtable)
-		packages << "\\usepackage{longtable}\n";
-
-	//rotating.sty
-	if (rotating)
-		packages << "\\usepackage{rotating}\n";
-
 	// amssymb.sty
-	if (amssymb || params.use_amsmath)
+	if (isRequired("amssymb") || params_.use_amsmath == BufferParams::AMS_ON)
 		packages << "\\usepackage{amssymb}\n";
-
-	// latexsym.sty
-	if (latexsym)
-		packages << "\\usepackage{latexsym}\n";
-
-	// pifont.sty
-	if (pifont)
-		packages << "\\usepackage{pifont}\n";
-
-	// subfigure.sty
-	if (subfigure)
-		packages << "\\usepackage{subfigure}\n";
-
-	// floatflt.sty
-	if (floatflt)
-		packages << "\\usepackage{floatflt}\n";
-
 	// url.sty
-	if (url && ! tclass.provides(LyXTextClass::url))
+	if (isRequired("url") && ! tclass.provides(LyXTextClass::url))
 		packages << "\\IfFileExists{url.sty}{\\usepackage{url}}\n"
 			    "                      {\\newcommand{\\url}{\\texttt}}\n";
 
-	// varioref.sty
-	if (varioref)
-		packages << "\\usepackage{varioref}\n";
-
-	// prettyref.sty
-	if (prettyref)
-		packages << "\\usepackage{prettyref}\n";
-
 	// float.sty
-	// We only need float.sty if we use non builtin floats. This includes
-	// modified table and figure floats. (Lgb)
-	if (!usedFloats.empty()) {
-		bool use_float = false;
-		UsedFloats::const_iterator beg = usedFloats.begin();
-		UsedFloats::const_iterator end = usedFloats.end();
-		for (; beg != end; ++beg) {
-			Floating const & fl = floatList.getType((*beg));
-			if (!fl.type().empty() && !fl.builtin()) {
-				use_float = true;
-				break;
-			}
+	// natbib.sty
+	if (isRequired("natbib") && ! tclass.provides(LyXTextClass::natbib)) {
+		packages << "\\usepackage[";
+		if (params_.cite_engine == biblio::ENGINE_NATBIB_NUMERICAL) {
+			packages << "numbers";
+		} else {
+			packages << "authoryear";
 		}
-		if (use_float)
-			packages << "\\usepackage{float}\n";
+		packages << "]{natbib}\n";
+	}
+
+	// bibtopic -- the dot provides the aux file naming which
+	// LyX can detect.
+	if (isRequired("bibtopic")) {
+		packages << "\\usepackage[dot]{bibtopic}\n";
 	}
-	
-	packages << externalPreambles;
 
-	return packages.str().c_str();
+	return packages.str();
 }
 
 
@@ -283,80 +321,124 @@ string const LaTeXFeatures::getMacros() const
 {
 	ostringstream macros;
 
-	// always include this
-	if (true || lyx) 
+	if (!preamble_snippets_.empty())
+		macros << '\n';
+	FeaturesList::const_iterator pit  = preamble_snippets_.begin();
+	FeaturesList::const_iterator pend = preamble_snippets_.end();
+	for (; pit != pend; ++pit) {
+		macros << *pit << '\n';
+	}
+
+	if (isRequired("LyX"))
 		macros << lyx_def << '\n';
 
-	if (lyxline) 
+	if (isRequired("lyxline"))
 		macros << lyxline_def << '\n';
 
-	if (noun) {
+	if (isRequired("noun"))
 		macros << noun_def << '\n';
-	}
 
-	if (lyxarrow) {
+	if (isRequired("lyxarrow"))
 		macros << lyxarrow_def << '\n';
-	}
 
-	// quotes. 
-	if (quotesinglbase)
+	// quotes.
+	if (isRequired("quotesinglbase"))
 		macros << quotesinglbase_def << '\n';
-	if (quotedblbase)
+	if (isRequired("quotedblbase"))
 		macros << quotedblbase_def << '\n';
-	if (guilsinglleft)
+	if (isRequired("guilsinglleft"))
 		macros << guilsinglleft_def << '\n';
-	if (guilsinglright)
+	if (isRequired("guilsinglright"))
 		macros << guilsinglright_def << '\n';
-	if (guillemotleft)
+	if (isRequired("guillemotleft"))
 		macros << guillemotleft_def << '\n';
-	if (guillemotright)
+	if (isRequired("guillemotright"))
 		macros << guillemotright_def << '\n';
-    
-        // Math mode    
-	if (boldsymbol && !amsstyle)
+
+	// Math mode
+	if (isRequired("boldsymbol") && !isRequired("amsmath"))
 		macros << boldsymbol_def << '\n';
-	if (binom && !amsstyle)
+	if (isRequired("binom") && !isRequired("amsmath"))
 		macros << binom_def << '\n';
+	if (isRequired("mathcircumflex"))
+		macros << mathcircumflex_def << '\n';
 
 	// other
-        if (NeedLyXMinipageIndent) 
-		macros << minipageindent_def;
-        if (ParagraphIndent) 
-		macros << paragraphindent_def;
-        if (NeedLyXFootnoteCode) 
+	if (isRequired("ParagraphLeftIndent"))
+		macros << paragraphleftindent_def;
+	if (isRequired("NeedLyXFootnoteCode"))
 		macros << floatingfootnote_def;
 
+	// some problems with tex->html converters
+	if (isRequired("NeedTabularnewline"))
+		macros << tabularnewline_def;
+
+	// greyedout environment (note inset)
+	if (isRequired("lyxgreyedout"))
+		macros << lyxgreyedout_def;
+
+	if (isRequired("lyxdot"))
+		macros << lyxdot_def << '\n';
+
 	// floats
 	getFloatDefinitions(macros);
 
-	for (LanguageList::const_iterator cit = UsedLanguages.begin();
-	     cit != UsedLanguages.end(); ++cit)
-		if (!(*cit)->latex_options().empty())
-			macros << (*cit)->latex_options() << '\n';
-	if (!params.language->latex_options().empty())
-		macros << params.language->latex_options() << '\n';
+	return macros.str();
+}
+
+
+string const LaTeXFeatures::getBabelOptions() const
+{
+	ostringstream tmp;
 
-	return macros.str().c_str();
+	LanguageList::const_iterator it  = UsedLanguages_.begin();
+	LanguageList::const_iterator end =  UsedLanguages_.end();
+	for (; it != end; ++it)
+		if (!(*it)->latex_options().empty())
+			tmp << (*it)->latex_options() << '\n';
+	if (!params_.language->latex_options().empty())
+		tmp << params_.language->latex_options() << '\n';
+
+	return tmp.str();
 }
 
 
 string const LaTeXFeatures::getTClassPreamble() const
 {
-	// the text class specific preamble 
-	LyXTextClass const & tclass =
-		textclasslist.TextClass(params.textclass);
+	// the text class specific preamble
+	LyXTextClass const & tclass = params_.getLyXTextClass();
 	ostringstream tcpreamble;
-	
+
 	tcpreamble << tclass.preamble();
 
-	for (unsigned int i = 0; i < tclass.numLayouts(); ++i) {
-		if (layout[i]) {
-			tcpreamble << tclass[i].preamble();
-		}
+	list<string>::const_iterator cit = usedLayouts_.begin();
+	list<string>::const_iterator end = usedLayouts_.end();
+	for (; cit != end; ++cit) {
+		tcpreamble << tclass[*cit]->preamble();
 	}
 
-	return tcpreamble.str().c_str();
-}	
+	CharStyles::iterator cs = tclass.charstyles().begin();
+	CharStyles::iterator csend = tclass.charstyles().end();
+	for (; cs != csend; ++cs) {
+		if (isRequired(cs->name))
+			tcpreamble << cs->preamble;
+	}
+
+	return tcpreamble.str();
+}
+
+
+string const LaTeXFeatures::getLyXSGMLEntities() const
+{
+	// Definition of entities used in the document that are LyX related.
+	ostringstream entities;
+
+	if (isRequired("lyxarrow")) {
+		entities << "<!ENTITY lyxarrow \"-&gt;\">" << '\n';
+	}
+
+	return entities.str();
+}
 
 
 string const LaTeXFeatures::getIncludedFiles(string const & fname) const
@@ -364,14 +446,14 @@ string const LaTeXFeatures::getIncludedFiles(string const & fname) const
 	ostringstream sgmlpreamble;
 	string const basename = OnlyPath(fname);
 
-	FileMap::const_iterator end = IncludedFiles.end();
-	for (FileMap::const_iterator fi = IncludedFiles.begin();
+	FileMap::const_iterator end = IncludedFiles_.end();
+	for (FileMap::const_iterator fi = IncludedFiles_.begin();
 	     fi != end; ++fi)
 		sgmlpreamble << "\n<!ENTITY " << fi->first
-			     << (IsSGMLFilename(fi->second) ? " SYSTEM \"" : " \"" )
+			     << (IsSGMLFilename(fi->second) ? " SYSTEM \"" : " \"")
 			     << MakeRelPath(fi->second, basename) << "\">";
 
-	return sgmlpreamble.str().c_str();
+	return sgmlpreamble.str();
 }
 
 
@@ -384,28 +466,42 @@ void LaTeXFeatures::showStruct() const {
 }
 
 
+Buffer const & LaTeXFeatures::buffer() const
+{
+	return *buffer_;
+}
+
+
+void LaTeXFeatures::setBuffer(Buffer const & buffer)
+{
+	buffer_ = &buffer;
+}
+
+
 BufferParams const & LaTeXFeatures::bufferParams() const
 {
-	return params;
+	return params_;
 }
 
 
-void LaTeXFeatures::getFloatDefinitions(std::ostream & os) const
+void LaTeXFeatures::getFloatDefinitions(ostream & os) const
 {
+	FloatList const & floats = params_.getLyXTextClass().floats();
+
 	// Here we will output the code to create the needed float styles.
 	// We will try to do this as minimal as possible.
 	// \floatstyle{ruled}
 	// \newfloat{algorithm}{htbp}{loa}
 	// \floatname{algorithm}{Algorithm}
-	UsedFloats::const_iterator cit = usedFloats.begin();
-	UsedFloats::const_iterator end = usedFloats.end();
+	UsedFloats::const_iterator cit = usedFloats_.begin();
+	UsedFloats::const_iterator end = usedFloats_.end();
 	// ostringstream floats;
 	for (; cit != end; ++cit) {
-		Floating const & fl = floatList.getType((*cit));
-		
+		Floating const & fl = floats.getType((*cit));
+
 		// For builtin floats we do nothing.
 		if (fl.builtin()) continue;
-		
+
 		// We have to special case "table" and "figure"
 		if (fl.type() == "tabular" || fl.type() == "figure") {
 			// Output code to modify "table" or "figure"
@@ -425,7 +521,7 @@ void LaTeXFeatures::getFloatDefinitions(std::ostream & os) const
 			}
 		} else {
 			// The other non builtin floats.
-			
+
 			string const type = fl.type();
 			string const placement = fl.placement();
 			string const ext = fl.ext();
@@ -434,16 +530,16 @@ void LaTeXFeatures::getFloatDefinitions(std::ostream & os) const
 			string const name = fl.name();
 			os << "\\floatstyle{" << style << "}\n"
 			   << "\\newfloat{" << type << "}{" << placement
-			   << "}{" << ext << "}";
+			   << "}{" << ext << '}';
 			if (!within.empty())
-				os << "[" << within << "]";
-			os << "\n"
+				os << '[' << within << ']';
+			os << '\n'
 			   << "\\floatname{" << type << "}{"
 			   << name << "}\n";
-			
+
 			// What missing here is to code to minimalize the code
-			// outputted so that the same flotastyle will not be
-			// used several times. when the same style is still in
+			// output so that the same floatstyle will not be
+			// used several times, when the same style is still in
 			// effect. (Lgb)
 		}
 	}