X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Foutput_latex.cpp;h=ac906835ed7537055843e34e089c00f0bc65b98f;hb=0362c6aae73c293d1c20277c12d362acfe0b2ef6;hp=96502ccb62ee9604576a7a1f26e96fcccc7e853a;hpb=ff8f2b3609b077e5bc6055a01eb3dcf61cbdf39a;p=lyx.git

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index 96502ccb62..ac906835ed 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -14,43 +14,55 @@
 
 #include "Buffer.h"
 #include "BufferParams.h"
-#include "debug.h"
 #include "Encoding.h"
+#include "InsetList.h"
 #include "Language.h"
+#include "Layout.h"
 #include "LyXRC.h"
 #include "OutputParams.h"
 #include "Paragraph.h"
 #include "paragraph_funcs.h"
 #include "ParagraphParameters.h"
+#include "TextClass.h"
 #include "TexRow.h"
 #include "VSpace.h"
 
 #include "insets/InsetBibitem.h"
 #include "insets/InsetOptArg.h"
 
+#include "support/debug.h"
 #include "support/lstrings.h"
 
+#include <boost/next_prior.hpp>
+
+using namespace std;
+using namespace lyx::support;
 
 namespace lyx {
 
-using support::subst;
+namespace {
+
 
-using std::endl;
-using std::string;
+enum OpenEncoding {
+		none,
+		inputenc,
+		CJK
+	};
 
+static int open_encoding_ = none;
+static bool cjk_inherited_ = false;
 
-namespace {
 
 ParagraphList::const_iterator
 TeXEnvironment(Buffer const & buf,
-	       ParagraphList const & paragraphs,
+	       Text const & text,
 	       ParagraphList::const_iterator pit,
 	       odocstream & os, TexRow & texrow,
 	       OutputParams const & runparams);
 
 ParagraphList::const_iterator
 TeXOnePar(Buffer const & buf,
-	  ParagraphList const & paragraphs,
+	  Text const & text,
 	  ParagraphList::const_iterator pit,
 	  odocstream & os, TexRow & texrow,
 	  OutputParams const & runparams,
@@ -59,25 +71,27 @@ TeXOnePar(Buffer const & buf,
 
 ParagraphList::const_iterator
 TeXDeeper(Buffer const & buf,
-	  ParagraphList const & paragraphs,
+	  Text const & text,
 	  ParagraphList::const_iterator pit,
 	  odocstream & os, TexRow & texrow,
 	  OutputParams const & runparams)
 {
-	LYXERR(Debug::LATEX) << "TeXDeeper...     " << &*pit << endl;
+	LYXERR(Debug::LATEX, "TeXDeeper...     " << &*pit);
 	ParagraphList::const_iterator par = pit;
 
+	ParagraphList const & paragraphs = text.paragraphs();
+
 	while (par != paragraphs.end() &&
 		     par->params().depth() == pit->params().depth()) {
 		if (par->layout()->isEnvironment()) {
-			par = TeXEnvironment(buf, paragraphs, par,
+			par = TeXEnvironment(buf, text, par,
 					     os, texrow, runparams);
 		} else {
-			par = TeXOnePar(buf, paragraphs, par,
+			par = TeXOnePar(buf, text, par,
 					     os, texrow, runparams);
 		}
 	}
-	LYXERR(Debug::LATEX) << "TeXDeeper...done " << endl;
+	LYXERR(Debug::LATEX, "TeXDeeper...done ");
 
 	return par;
 }
@@ -85,16 +99,20 @@ TeXDeeper(Buffer const & buf,
 
 ParagraphList::const_iterator
 TeXEnvironment(Buffer const & buf,
-	       ParagraphList const & paragraphs,
+	       Text const & text,
 	       ParagraphList::const_iterator pit,
 	       odocstream & os, TexRow & texrow,
 	       OutputParams const & runparams)
 {
-	LYXERR(Debug::LATEX) << "TeXEnvironment...     " << &*pit << endl;
+	LYXERR(Debug::LATEX, "TeXEnvironment...     " << &*pit);
 
 	BufferParams const & bparams = buf.params();
 
-	Layout_ptr const & style = pit->layout();
+	LayoutPtr const & style = pit->forceEmptyLayout() ?
+			bparams.textClass().emptyLayout() :
+			pit->layout();
+
+	ParagraphList const & paragraphs = text.paragraphs();
 
 	Language const * const par_language = pit->getParLanguage(bparams);
 	Language const * const doc_language = bparams.language;
@@ -111,7 +129,8 @@ TeXEnvironment(Buffer const & buf,
 				lyxrc.language_command_end,
 				"$$lang",
 				prev_par_language->babel()))
-			   << '\n';
+			   // the '%' is necessary to prevent unwanted whitespace
+			   << "%\n";
 			texrow.newline();
 		}
 
@@ -122,7 +141,8 @@ TeXEnvironment(Buffer const & buf,
 				lyxrc.language_command_begin,
 				"$$lang",
 				par_language->babel()))
-			   << '\n';
+			   // the '%' is necessary to prevent unwanted whitespace
+			   << "%\n";
 			texrow.newline();
 		}
 	}
@@ -157,9 +177,21 @@ TeXEnvironment(Buffer const & buf,
 			os << from_ascii(style->latexparam()) << '\n';
 		texrow.newline();
 	}
+
+	// in multilingual environments, the CJK tags have to be nested properly
+	bool cjk_nested = false;
+	if (par_language->encoding()->package() == Encoding::CJK &&
+	    open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
+		os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
+		   << "}{}%\n";
+		open_encoding_ = CJK;
+		cjk_nested = true;
+		texrow.newline();
+	}
+
 	ParagraphList::const_iterator par = pit;
 	do {
-		par = TeXOnePar(buf, paragraphs, par, os, texrow, runparams);
+		par = TeXOnePar(buf, text, par, os, texrow, runparams);
 
 		if (par == paragraphs.end()) {
 			// Make sure that the last paragraph is
@@ -168,12 +200,12 @@ TeXEnvironment(Buffer const & buf,
 			os << '\n';
 			texrow.newline();
 		} else if (par->params().depth() > pit->params().depth()) {
-			    if (par->layout()->isParagraph()) {
+			if (par->layout()->isParagraph()) {
+			  // Thinko!
+			  // How to handle this? (Lgb)
+			  //&& !suffixIs(os, "\n\n")
+				  //) {
 
-			    // Thinko!
-			    // How to handle this? (Lgb)
-			    //&& !suffixIs(os, "\n\n")
-				    //) {
 				// There should be at least one '\n' already
 				// but we need there to be two for Standard
 				// paragraphs that are depth-increment'ed to be
@@ -187,7 +219,7 @@ TeXEnvironment(Buffer const & buf,
 				os << '\n';
 				texrow.newline();
 			}
-			par = TeXDeeper(buf, paragraphs, par, os, texrow,
+			par = TeXDeeper(buf, text, par, os, texrow,
 					runparams);
 		}
 	} while (par != paragraphs.end()
@@ -195,6 +227,14 @@ TeXEnvironment(Buffer const & buf,
 		 && par->params().depth() == pit->params().depth()
 		 && par->params().leftIndent() == pit->params().leftIndent());
 
+	if (open_encoding_ == CJK && cjk_nested) {
+		// We need to close the encoding even if it does not change
+		// to do correct environment nesting
+		os << "\\end{CJK}\n";
+		texrow.newline();
+		open_encoding_ = none;
+	}
+
 	if (style->isEnvironment()) {
 		os << "\\end{" << from_ascii(style->latexname()) << "}\n";
 		texrow.newline();
@@ -206,7 +246,8 @@ TeXEnvironment(Buffer const & buf,
 	}
 
 	if (par != paragraphs.end())
-		LYXERR(Debug::LATEX) << "TeXEnvironment...done " << &*par << endl;
+		LYXERR(Debug::LATEX, "TeXEnvironment...done " << &*par);
+
 	return par;
 }
 
@@ -218,10 +259,10 @@ int latexOptArgInsets(Buffer const & buf, Paragraph const & par,
 {
 	int lines = 0;
 
-	InsetList::const_iterator it = par.insetlist.begin();
-	InsetList::const_iterator end = par.insetlist.end();
+	InsetList::const_iterator it = par.insetList().begin();
+	InsetList::const_iterator end = par.insetList().end();
 	for (; it != end && number > 0 ; ++it) {
-		if (it->inset->lyxCode() == Inset::OPTARG_CODE) {
+		if (it->inset->lyxCode() == OPTARG_CODE) {
 			InsetOptArg * ins =
 				static_cast<InsetOptArg *>(it->inset);
 			lines += ins->latexOptional(buf, os, runparams);
@@ -236,35 +277,69 @@ namespace {
 
 ParagraphList::const_iterator
 TeXOnePar(Buffer const & buf,
-	  ParagraphList const & paragraphs,
+	  Text const & text,
 	  ParagraphList::const_iterator pit,
 	  odocstream & os, TexRow & texrow,
 	  OutputParams const & runparams_in,
 	  string const & everypar)
 {
-	LYXERR(Debug::LATEX) << "TeXOnePar...     " << &*pit << " '"
-		<< everypar << "'" << endl;
+	LYXERR(Debug::LATEX, "TeXOnePar...     " << &*pit << " '"
+		<< everypar << "'");
 	BufferParams const & bparams = buf.params();
-	Layout_ptr style;
+	ParagraphList const & paragraphs = text.paragraphs();
+
+	if (runparams_in.verbatim) {
+		int const dist = distance(paragraphs.begin(), pit);
+		Font const outerfont = outerFont(dist, paragraphs);
+
+		// No newline if only one paragraph in this lyxtext
+		if (dist > 0) {
+			os << '\n';
+			texrow.newline();
+		}
 
+		/*bool need_par = */ pit->latex(buf, bparams, outerfont,
+			os, texrow, runparams_in);
+
+		return ++pit;
+	}
+
+	// FIXME This comment doesn't make sense. What's the
+	// length got to do with forceEmptyLayout()? I.e., what
+	// was forceDefaultParagraphs()?
 	// In an inset with unlimited length (all in one row),
 	// force layout to default
-	if (!pit->forceDefaultParagraphs())
-		style = pit->layout();
-	else
-		style = bparams.getTextClass().defaultLayout();
+	LayoutPtr const style = pit->forceEmptyLayout() ?
+		bparams.textClass().emptyLayout() :
+		pit->layout();
 
 	OutputParams runparams = runparams_in;
 	runparams.moving_arg |= style->needprotect;
 
+	bool const maintext = text.isMainText(buf);
+	// we are at the beginning of an inset and CJK is already open.
+	if (pit == paragraphs.begin() && !maintext && open_encoding_ == CJK) {
+		cjk_inherited_ = true;
+		open_encoding_ = none;
+	}
+
+	// This paragraph's language
 	Language const * const par_language = pit->getParLanguage(bparams);
+	// The document's language
 	Language const * const doc_language = bparams.language;
-	Language const * const prev_par_language =
-		(pit != paragraphs.begin())
-		? boost::prior(pit)->getParLanguage(bparams)
-		: doc_language;
-
-	if (par_language->babel() != prev_par_language->babel()
+	// The language that was in effect when the environment this paragraph is 
+	// inside of was opened
+	Language const * const outer_language = 
+		(runparams.local_font != 0) ?
+			runparams.local_font->language() : doc_language;
+	// The previous language that was in effect is either the language of
+	// the previous paragraph, if there is one, or else the outer language
+	// if there is no previous paragraph
+	Language const * const prev_language =
+		(pit != paragraphs.begin()) ?
+			boost::prior(pit)->getParLanguage(bparams) : outer_language;
+
+	if (par_language->babel() != prev_language->babel()
 	    // check if we already put language command in TeXEnvironment()
 	    && !(style->isEnvironment()
 		 && (pit == paragraphs.begin() ||
@@ -273,60 +348,139 @@ TeXOnePar(Buffer const & buf,
 		     || boost::prior(pit)->getDepth() < pit->getDepth())))
 	{
 		if (!lyxrc.language_command_end.empty() &&
-		    prev_par_language->babel() != doc_language->babel() &&
-		    !prev_par_language->babel().empty())
+		    prev_language->babel() != outer_language->babel() &&
+		    !prev_language->babel().empty())
 		{
 			os << from_ascii(subst(lyxrc.language_command_end,
 				"$$lang",
-				prev_par_language->babel()))
-			   << '\n';
+				prev_language->babel()))
+			   // the '%' is necessary to prevent unwanted whitespace
+			   << "%\n";
 			texrow.newline();
 		}
 
+		// We need to open a new language if we couldn't close the previous 
+		// one (because there's no language_command_end); and even if we closed
+		// the previous one, if the current language is different than the
+		// outer_language (which is currently in effect once the previous one
+		// is closed).
 		if ((lyxrc.language_command_end.empty() ||
-		     par_language->babel() != doc_language->babel()) &&
+		     par_language->babel() != outer_language->babel()) &&
 		    !par_language->babel().empty()) {
-			os << from_ascii(subst(
-				lyxrc.language_command_begin,
-				"$$lang",
-				par_language->babel()))
-			   << '\n';
-			texrow.newline();
+			// If we're inside an inset, and that inset is within an \L or \R
+			// (or equivalents), then within the inset, too, any opposite
+			// language paragraph should appear within an \L or \R (in addition
+			// to, outside of, the normal language switch commands).
+			// This behavior is not correct for ArabTeX, though.
+			if (	// not for ArabTeX
+					(par_language->lang() != "arabic_arabtex" &&
+					 outer_language->lang() != "arabic_arabtex") &&
+					// are we in an inset?
+					runparams.local_font != 0 &&
+					// is the inset within an \L or \R?
+					// 
+					// FIXME: currently, we don't check this; this means that
+					// we'll have unnnecessary \L and \R commands, but that 
+					// doesn't seem to hurt (though latex will complain)
+					// 
+					// is this paragraph in the opposite direction?
+					runparams.local_font->isRightToLeft() !=
+						par_language->rightToLeft()
+				) {
+				// FIXME: I don't have a working copy of the Arabi package, so
+				// I'm not sure if the farsi and arabic_arabi stuff is correct
+				// or not...
+				if (par_language->lang() == "farsi")
+					os << "\\textFR{";
+				else if (outer_language->lang() == "farsi")
+					os << "\\textLR{";
+				else if (par_language->lang() == "arabic_arabi")
+					os << "\\textAR{";
+				else if (outer_language->lang() == "arabic_arabi")
+					os << "\\textLR{";
+				// remaining RTL languages currently is hebrew
+				else if (par_language->rightToLeft())
+					os << "\\R{";
+				else
+					os << "\\L{";
+			}
+			// With CJK, the CJK tag has to be closed first (see below)
+			if (runparams.encoding->package() != Encoding::CJK) {
+				os << from_ascii(subst(
+					lyxrc.language_command_begin,
+					"$$lang",
+					par_language->babel()))
+				   // the '%' is necessary to prevent unwanted whitespace
+				   << "%\n";
+				texrow.newline();
+			}
 		}
 	}
 
-	// Switch file encoding if necessary
+	// Switch file encoding if necessary; no need to do this for "default"
+	// encoding, since this only affects the position of the outputted
+	// \inputencoding command; the encoding switch will occur when necessary
 	if (bparams.inputenc == "auto" &&
-	    runparams.encoding->package() == Encoding::inputenc) {
+	    runparams.encoding->package() != Encoding::none) {
 		// Look ahead for future encoding changes.
 		// We try to output them at the beginning of the paragraph,
 		// since the \inputencoding command is not allowed e.g. in
 		// sections.
 		for (pos_type i = 0; i < pit->size(); ++i) {
 			char_type const c = pit->getChar(i);
-			if (c < 0x80)
+			Encoding const * const encoding =
+				pit->getFontSettings(bparams, i).language()->encoding();
+			if (encoding->package() != Encoding::CJK &&
+			    runparams.encoding->package() == Encoding::inputenc &&
+			    c < 0x80)
 				continue;
 			if (pit->isInset(i))
 				break;
 			// All characters before c are in the ASCII range, and
 			// c is non-ASCII (but no inset), so change the
 			// encoding to that required by the language of c.
-			Encoding const * const encoding =
-				pit->getFontSettings(bparams, i).language()->encoding();
-			if (encoding->package() == Encoding::inputenc &&
-			    switchEncoding(os, bparams, false,
-			                   *(runparams.encoding), *encoding) > 0) {
-				runparams.encoding = encoding;
-				os << '\n';
-				texrow.newline();
+			// With CJK, only add switch if we have CJK content at the beginning
+			// of the paragraph
+			if (encoding->package() != Encoding::CJK || i == 0) {
+				OutputParams tmp_rp = runparams;
+				runparams.moving_arg = false;
+				pair<bool, int> enc_switch = switchEncoding(os, bparams, runparams,
+					*encoding);
+				runparams = tmp_rp;
+				// the following is necessary after a CJK environment in a multilingual
+				// context (nesting issue).
+				if (par_language->encoding()->package() == Encoding::CJK &&
+				    open_encoding_ != CJK && !cjk_inherited_) {
+					os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
+					   << "}{}%\n";
+					open_encoding_ = CJK;
+					texrow.newline();
+				}
+				if (encoding->package() != Encoding::none && enc_switch.first) {
+					if (enc_switch.second > 0) {
+						// the '%' is necessary to prevent unwanted whitespace
+						os << "%\n";
+						texrow.newline();
+					}
+					// With CJK, the CJK tag had to be closed first (see above)
+					if (runparams.encoding->package() == Encoding::CJK) {
+						os << from_ascii(subst(
+							lyxrc.language_command_begin,
+							"$$lang",
+							par_language->babel()))
+						// the '%' is necessary to prevent unwanted whitespace
+						<< "%\n";
+						texrow.newline();
+					}
+					runparams.encoding = encoding;
+				}
+				break;
 			}
-			break;
 		}
 	}
 
-	// In an inset with unlimited length (all in one row),
-	// don't allow any special options in the paragraph
-	if (!pit->forceDefaultParagraphs()) {
+	bool const useSetSpace = bparams.textClass().provides("SetSpace");
+	if (pit->allowParagraphCustomization()) {
 		if (pit->params().startOfAppendix()) {
 			os << "\\appendix\n";
 			texrow.newline();
@@ -336,7 +490,7 @@ TeXOnePar(Buffer const & buf,
 			&& (pit == paragraphs.begin()
 			    || !boost::prior(pit)->hasSameLayout(*pit)))
 		{
-			os << from_ascii(pit->params().spacing().writeEnvirBegin())
+			os << from_ascii(pit->params().spacing().writeEnvirBegin(useSetSpace))
 			    << '\n';
 			texrow.newline();
 		}
@@ -375,12 +529,12 @@ TeXOnePar(Buffer const & buf,
 	}
 
 	Font const outerfont =
-		outerFont(std::distance(paragraphs.begin(), pit),
+		outerFont(distance(paragraphs.begin(), pit),
 			  paragraphs);
 
 	// FIXME UNICODE
 	os << from_utf8(everypar);
-	bool need_par = pit->simpleTeXOnePar(buf, bparams, outerfont,
+	bool need_par = pit->latex(buf, bparams, outerfont,
 					     os, texrow, runparams);
 
 	// Make sure that \\par is done with the font of the last
@@ -400,7 +554,7 @@ TeXOnePar(Buffer const & buf,
 
 	bool is_command = style->isCommand();
 
-	if (style->resfont.size() != font.size()
+	if (style->resfont.size() != font.fontInfo().size()
 	    && boost::next(pit) != paragraphs.end()
 	    && !is_command) {
 		if (!need_par)
@@ -437,7 +591,7 @@ TeXOnePar(Buffer const & buf,
 			pending_newline = true;
 	}
 
-	if (!pit->forceDefaultParagraphs()) {
+	if (pit->allowParagraphCustomization()) {
 		if (!pit->params().spacing().isDefault()
 			&& (boost::next(pit) == paragraphs.end()
 			    || !boost::next(pit)->hasSameLayout(*pit)))
@@ -446,13 +600,30 @@ TeXOnePar(Buffer const & buf,
 				os << '\n';
 				texrow.newline();
 			}
-			os << from_ascii(pit->params().spacing().writeEnvirEnd());
+			os << from_ascii(pit->params().spacing().writeEnvirEnd(useSetSpace));
 			pending_newline = true;
 		}
 	}
 
-	if (boost::next(pit) == paragraphs.end()
-	    && par_language->babel() != doc_language->babel()) {
+	// Closing the language is needed for the last paragraph; it is also
+	// needed if we're within an \L or \R that we may have opened above (not
+	// necessarily in this paragraph) and are about to close.
+	bool closing_rtl_ltr_environment = 
+		// not for ArabTeX
+		(par_language->lang() != "arabic_arabtex" &&
+		 outer_language->lang() != "arabic_arabtex") &&
+		// have we opened and \L or \R environment?
+		runparams.local_font != 0 &&
+		runparams.local_font->isRightToLeft() != par_language->rightToLeft() &&
+		// are we about to close the language?
+		((boost::next(pit) != paragraphs.end() &&
+		  par_language->babel() != 
+		  	(boost::next(pit)->getParLanguage(bparams))->babel()) ||
+		 (boost::next(pit) == paragraphs.end() &&
+		  par_language->babel() != outer_language->babel()));
+
+	if (closing_rtl_ltr_environment || (boost::next(pit) == paragraphs.end()
+	    && par_language->babel() != outer_language->babel())) {
 		// Since \selectlanguage write the language to the aux file,
 		// we need to reset the language at the end of footnote or
 		// float.
@@ -461,28 +632,90 @@ TeXOnePar(Buffer const & buf,
 			os << '\n';
 			texrow.newline();
 		}
-		if (lyxrc.language_command_end.empty()) {
-			if (!doc_language->babel().empty()) {
+		// when the paragraph uses CJK, the language has to be closed earlier
+		if (font.language()->encoding()->package() != Encoding::CJK) {
+			if (lyxrc.language_command_end.empty()) {
+				if (!prev_language->babel().empty()) {
+					os << from_ascii(subst(
+						lyxrc.language_command_begin,
+						"$$lang",
+						prev_language->babel()));
+					pending_newline = true;
+				}
+			} else if (!par_language->babel().empty()) {
 				os << from_ascii(subst(
-					lyxrc.language_command_begin,
+					lyxrc.language_command_end,
 					"$$lang",
-					doc_language->babel()));
+					par_language->babel()));
 				pending_newline = true;
 			}
-		} else if (!par_language->babel().empty()) {
-			os << from_ascii(subst(
-				lyxrc.language_command_end,
-				"$$lang",
-				par_language->babel()));
-			pending_newline = true;
 		}
 	}
+	if (closing_rtl_ltr_environment)
+		os << "}";
 
 	if (pending_newline) {
 		os << '\n';
 		texrow.newline();
 	}
-	runparams_in.encoding = runparams.encoding;
+
+	// if this is a CJK-paragraph and the next isn't, close CJK
+	// also if the next paragraph is a multilingual environment (because of nesting)
+	if (boost::next(pit) != paragraphs.end() && open_encoding_ == CJK &&
+	    (boost::next(pit)->getParLanguage(bparams)->encoding()->package() != Encoding::CJK ||
+	     boost::next(pit)->layout()->isEnvironment() && boost::next(pit)->isMultiLingual(bparams))
+	     // in environments, CJK has to be closed later (nesting!)
+	     && !style->isEnvironment()) {
+		os << "\\end{CJK}\n";
+		open_encoding_ = none;
+	}
+
+	// If this is the last paragraph, close the CJK environment
+	// if necessary. If it's an environment, we'll have to \end that first.
+	if (boost::next(pit) == paragraphs.end() && !style->isEnvironment()) {
+		switch (open_encoding_) {
+			case CJK: {
+				// end of main text
+				if (maintext) {
+					os << '\n';
+					texrow.newline();
+					os << "\\end{CJK}\n";
+					texrow.newline();
+				// end of an inset
+				} else
+					os << "\\end{CJK}";
+				open_encoding_ = none;
+				break;
+			}
+			case inputenc: {
+				os << "\\egroup";
+				open_encoding_ = none;
+				break;
+			}
+			case none:
+			default:
+				// do nothing
+				break;
+		}
+	}
+
+	// If this is the last paragraph, and a local_font was set upon entering
+	// the inset, the encoding should be set back to that local_font's 
+	// encoding. We don't use switchEncoding(), because no explicit encoding
+	// switch command is needed, since latex will automatically revert to it
+	// when this inset closes.
+	// This switch is only necessary if we're using "auto" or "default" 
+	// encoding. 
+	if (boost::next(pit) == paragraphs.end() && runparams_in.local_font != 0) {
+		runparams_in.encoding = runparams_in.local_font->language()->encoding();
+		if (bparams.inputenc == "auto" || bparams.inputenc == "default")
+			os << setEncoding(runparams_in.encoding->iconvName());
+
+	}
+	// Otherwise, the current encoding should be set for the next paragraph.
+	else
+		runparams_in.encoding = runparams.encoding;
+
 
 	// we don't need it for the last paragraph!!!
 	// Note from JMarc: we will re-add a \n explicitely in
@@ -493,7 +726,7 @@ TeXOnePar(Buffer const & buf,
 	}
 
 	if (boost::next(pit) != paragraphs.end())
-		LYXERR(Debug::LATEX) << "TeXOnePar...done " << &*boost::next(pit) << endl;
+		LYXERR(Debug::LATEX, "TeXOnePar...done " << &*boost::next(pit));
 
 	return ++pit;
 }
@@ -503,7 +736,7 @@ TeXOnePar(Buffer const & buf,
 
 // LaTeX all paragraphs
 void latexParagraphs(Buffer const & buf,
-		     ParagraphList const & paragraphs,
+		     Text const & text,
 		     odocstream & os,
 		     TexRow & texrow,
 		     OutputParams const & runparams,
@@ -511,7 +744,9 @@ void latexParagraphs(Buffer const & buf,
 {
 	bool was_title = false;
 	bool already_title = false;
-	TextClass const & tclass = buf.params().getTextClass();
+	BufferParams const & bparams = buf.params();
+	TextClass const & tclass = bparams.textClass();
+	ParagraphList const & paragraphs = text.paragraphs();
 	ParagraphList::const_iterator par = paragraphs.begin();
 	ParagraphList::const_iterator endpar = paragraphs.end();
 
@@ -526,16 +761,41 @@ void latexParagraphs(Buffer const & buf,
 		const_cast<OutputParams&>(runparams).par_end = 0;
 	}
 
+	bool const maintext = text.isMainText(buf);
+
+	// Open a CJK environment at the beginning of the main buffer
+	// if the document's language is a CJK language
+	if (maintext && bparams.encoding().package() == Encoding::CJK) {
+		os << "\\begin{CJK}{" << from_ascii(bparams.encoding().latexName())
+		<< "}{}%\n";
+		texrow.newline();
+		open_encoding_ = CJK;
+	}
+	// if "auto begin" is switched off, explicitely switch the
+	// language on at start
+	if (maintext && !lyxrc.language_auto_begin &&
+	    !bparams.language->babel().empty()) {
+		// FIXME UNICODE
+		os << from_utf8(subst(lyxrc.language_command_begin,
+					"$$lang",
+					bparams.language->babel()))
+			<< '\n';
+	texrow.newline();
+	}
+
+	ParagraphList::const_iterator lastpar;
 	// if only_body
 	while (par != endpar) {
-		ParagraphList::const_iterator lastpar = par;
+		lastpar = par;
 		// well we have to check if we are in an inset with unlimited
 		// length (all in one row) if that is true then we don't allow
 		// any special options in the paragraph and also we don't allow
 		// any environment other than the default layout of the
 		// text class to be valid!
-		if (!par->forceDefaultParagraphs()) {
-			Layout_ptr const & layout = par->layout();
+		if (par->allowParagraphCustomization()) {
+			LayoutPtr const & layout = par->forceEmptyLayout() ?
+					tclass.emptyLayout() :
+					par->layout();
 
 			if (layout->intitle) {
 				if (already_title) {
@@ -566,21 +826,21 @@ void latexParagraphs(Buffer const & buf,
 			}
 
 			if (layout->is_environment) {
-				par = TeXOnePar(buf, paragraphs, par, os, texrow,
+				par = TeXOnePar(buf, text, par, os, texrow,
 						runparams, everypar);
 			} else if (layout->isEnvironment() ||
-			           !par->params().leftIndent().zero()) {
-				par = TeXEnvironment(buf, paragraphs, par, os,
+				   !par->params().leftIndent().zero()) {
+				par = TeXEnvironment(buf, text, par, os,
 						     texrow, runparams);
 			} else {
-				par = TeXOnePar(buf, paragraphs, par, os, texrow,
+				par = TeXOnePar(buf, text, par, os, texrow,
 						runparams, everypar);
 			}
 		} else {
-			par = TeXOnePar(buf, paragraphs, par, os, texrow,
+			par = TeXOnePar(buf, text, par, os, texrow,
 					runparams, everypar);
 		}
-		if (std::distance(lastpar, par) >= std::distance(lastpar, endpar))
+		if (distance(lastpar, par) >= distance(lastpar, endpar))
 			break;
 	}
 	// It might be that we only have a title in this document
@@ -595,62 +855,108 @@ void latexParagraphs(Buffer const & buf,
 				}
 		texrow.newline();
 	}
+	// if "auto end" is switched off, explicitely close the language at the end
+	// but only if the last par is in a babel language
+	if (maintext && !lyxrc.language_auto_end && !bparams.language->babel().empty() &&
+		lastpar->getParLanguage(bparams)->encoding()->package() != Encoding::CJK) {
+		os << from_utf8(subst(lyxrc.language_command_end,
+					"$$lang",
+					bparams.language->babel()))
+			<< '\n';
+		texrow.newline();
+	}
+	// If the last paragraph is an environment, we'll have to close
+	// CJK at the very end to do proper nesting.
+	if (maintext && open_encoding_ == CJK) {
+		os << "\\end{CJK}\n";
+		texrow.newline();
+		open_encoding_ = none;
+	}
+	// reset inherited encoding
+	if (cjk_inherited_) {
+		open_encoding_ = CJK;
+		cjk_inherited_ = false;
+	}
 }
 
 
-int switchEncoding(odocstream & os, BufferParams const & bparams,
-                   bool moving_arg, Encoding const & oldEnc,
-                   Encoding const & newEnc)
+pair<bool, int> switchEncoding(odocstream & os, BufferParams const & bparams,
+		   OutputParams const & runparams, Encoding const & newEnc)
 {
-	if ((bparams.inputenc != "auto" || moving_arg)
-		&& bparams.inputenc != "default")
-		return 0;
+	Encoding const oldEnc = *runparams.encoding;
+	bool moving_arg = runparams.moving_arg;
+	if ((bparams.inputenc != "auto" && bparams.inputenc != "default")
+		|| moving_arg)
+		return make_pair(false, 0);
 
 	// Do nothing if the encoding is unchanged.
 	if (oldEnc.name() == newEnc.name())
-		return 0;
+		return make_pair(false, 0);
 
 	// FIXME We ignore encoding switches from/to encodings that do
 	// neither support the inputenc package nor the CJK package here.
 	// This does of course only work in special cases (e.g. switch from
-	// tis620-0 to latin1, but the text in latin1 contains ASCII only,
+	// tis620-0 to latin1, but the text in latin1 contains ASCII only),
 	// but it is the best we can do
 	if (oldEnc.package() == Encoding::none
 		|| newEnc.package() == Encoding::none)
-		return 0;
+		return make_pair(false, 0);
 
-	LYXERR(Debug::LATEX) << "Changing LaTeX encoding from "
-		<< oldEnc.name() << " to "
-		<< newEnc.name() << endl;
+	LYXERR(Debug::LATEX, "Changing LaTeX encoding from "
+		<< oldEnc.name() << " to " << newEnc.name());
 	os << setEncoding(newEnc.iconvName());
 	if (bparams.inputenc == "default")
-		return 0;
+		return make_pair(true, 0);
 
-	docstring const inputenc(from_ascii(newEnc.latexName()));
+	docstring const inputenc_arg(from_ascii(newEnc.latexName()));
 	switch (newEnc.package()) {
 		case Encoding::none:
-			return 0;
+			// shouldn't ever reach here, see above
+			return make_pair(true, 0);
 		case Encoding::inputenc: {
-			int count = inputenc.length();
-			if (oldEnc.package() == Encoding::CJK) {
+			int count = inputenc_arg.length();
+			if (oldEnc.package() == Encoding::CJK &&
+			    open_encoding_ == CJK) {
 				os << "\\end{CJK}";
+				open_encoding_ = none;
 				count += 9;
 			}
-			os << "\\inputencoding{" << inputenc << '}';
-			return count + 16;
-		 }
+			else if (oldEnc.package() == Encoding::inputenc &&
+				 open_encoding_ == inputenc) {
+				os << "\\egroup";
+				open_encoding_ = none;
+				count += 7;
+			}
+			if (runparams.local_font != 0 && oldEnc.package() == Encoding::CJK) {
+				// within insets, \inputenc switches need to be 
+				// embraced within \bgroup ... \egroup; else CJK fails.
+				os << "\\bgroup";
+				count += 7;
+				open_encoding_ = inputenc;
+			}
+			os << "\\inputencoding{" << inputenc_arg << '}';
+			return make_pair(true, count + 16);
+		}
 		case Encoding::CJK: {
-			int count = inputenc.length();
-			if (oldEnc.package() == Encoding::CJK) {
+			int count = inputenc_arg.length();
+			if (oldEnc.package() == Encoding::CJK && 
+			    open_encoding_ == CJK) {
 				os << "\\end{CJK}";
 				count += 9;
 			}
-			os << "\\begin{CJK}{" << inputenc << "}{}";
-			return count + 15;
+			if (oldEnc.package() == Encoding::inputenc && 
+			    open_encoding_ == inputenc) {
+				os << "\\egroup";
+				count += 7;
+			}
+			os << "\\begin{CJK}{" << inputenc_arg << "}{}";
+			open_encoding_ = CJK;
+			return make_pair(true, count + 15);
 		}
 	}
 	// Dead code to avoid a warning:
-	return 0;
+	return make_pair(true, 0);
+
 }
 
 } // namespace lyx