2 * \file output_latex.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
8 * Full author contact details are available in file CREDITS.
13 #include "output_latex.h"
16 #include "BufferParams.h"
18 #include "InsetList.h"
22 #include "OutputParams.h"
23 #include "Paragraph.h"
24 #include "paragraph_funcs.h"
25 #include "ParagraphParameters.h"
26 #include "TextClass.h"
30 #include "insets/InsetBibitem.h"
31 #include "insets/InsetOptArg.h"
33 #include "support/lassert.h"
34 #include "support/debug.h"
35 #include "support/lstrings.h"
37 #include <boost/next_prior.hpp>
40 using namespace lyx::support;
53 static int open_encoding_ = none;
54 static int cjk_inherited_ = 0;
57 ParagraphList::const_iterator
58 TeXEnvironment(Buffer const & buf,
60 ParagraphList::const_iterator pit,
61 odocstream & os, TexRow & texrow,
62 OutputParams const & runparams);
65 ParagraphList::const_iterator
66 TeXDeeper(Buffer const & buf,
68 ParagraphList::const_iterator pit,
69 odocstream & os, TexRow & texrow,
70 OutputParams const & runparams)
72 LYXERR(Debug::LATEX, "TeXDeeper... " << &*pit);
73 ParagraphList::const_iterator par = pit;
75 ParagraphList const & paragraphs = text.paragraphs();
77 while (par != paragraphs.end() &&
78 par->params().depth() == pit->params().depth()) {
79 // FIXME This test should not be necessary.
80 // We should perhaps issue an error if it is.
81 Layout const & style = par->forcePlainLayout() ?
82 buf.params().documentClass().plainLayout() : par->layout();
83 if (style.isEnvironment()) {
84 par = TeXEnvironment(buf, text, par,
85 os, texrow, runparams);
87 par = TeXOnePar(buf, text, par,
88 os, texrow, runparams);
91 LYXERR(Debug::LATEX, "TeXDeeper...done ");
97 ParagraphList::const_iterator
98 TeXEnvironment(Buffer const & buf,
100 ParagraphList::const_iterator pit,
101 odocstream & os, TexRow & texrow,
102 OutputParams const & runparams)
104 LYXERR(Debug::LATEX, "TeXEnvironment... " << &*pit);
106 BufferParams const & bparams = buf.params();
108 // FIXME This test should not be necessary.
109 // We should perhaps issue an error if it is.
110 Layout const & style = pit->forcePlainLayout() ?
111 bparams.documentClass().plainLayout() : pit->layout();
113 ParagraphList const & paragraphs = text.paragraphs();
115 Language const * const par_language = pit->getParLanguage(bparams);
116 Language const * const doc_language = bparams.language;
117 Language const * const prev_par_language =
118 (pit != paragraphs.begin())
119 ? boost::prior(pit)->getParLanguage(bparams)
121 if (par_language->babel() != prev_par_language->babel()) {
123 if (!lyxrc.language_command_end.empty() &&
124 prev_par_language->babel() != doc_language->babel() &&
125 !prev_par_language->babel().empty()) {
126 os << from_ascii(subst(
127 lyxrc.language_command_end,
129 prev_par_language->babel()))
130 // the '%' is necessary to prevent unwanted whitespace
135 if ((lyxrc.language_command_end.empty() ||
136 par_language->babel() != doc_language->babel()) &&
137 !par_language->babel().empty()) {
138 os << from_ascii(subst(
139 lyxrc.language_command_begin,
141 par_language->babel()))
142 // the '%' is necessary to prevent unwanted whitespace
148 bool leftindent_open = false;
149 if (!pit->params().leftIndent().zero()) {
150 os << "\\begin{LyXParagraphLeftIndent}{"
151 << from_ascii(pit->params().leftIndent().asLatexString())
154 leftindent_open = true;
157 if (style.isEnvironment()) {
158 os << "\\begin{" << from_ascii(style.latexname()) << '}';
159 if (style.optionalargs > 0) {
160 int ret = latexOptArgInsets(*pit, os, runparams,
167 if (style.latextype == LATEX_LIST_ENVIRONMENT) {
169 << pit->params().labelWidthString()
171 } else if (style.labeltype == LABEL_BIBLIO) {
172 if (pit->params().labelWidthString().empty())
173 os << '{' << bibitemWidest(buf) << "}\n";
176 << pit->params().labelWidthString()
179 os << from_ascii(style.latexparam()) << '\n';
183 // in multilingual environments, the CJK tags have to be nested properly
184 bool cjk_nested = false;
185 if (par_language->encoding()->package() == Encoding::CJK &&
186 open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
187 if (prev_par_language->encoding()->package() == Encoding::CJK)
188 os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
189 << "}{" << from_ascii(bparams.fontsCJK) << "}%\n";
190 open_encoding_ = CJK;
195 ParagraphList::const_iterator par = pit;
197 par = TeXOnePar(buf, text, par, os, texrow, runparams);
199 if (par == paragraphs.end()) {
200 // Make sure that the last paragraph is
201 // correctly terminated (because TeXOnePar does
202 // not add a \n in this case)
205 } else if (par->params().depth() > pit->params().depth()) {
206 if (par->layout().isParagraph()) {
208 // How to handle this? (Lgb)
209 //&& !suffixIs(os, "\n\n")
211 // There should be at least one '\n' already
212 // but we need there to be two for Standard
213 // paragraphs that are depth-increment'ed to be
214 // output correctly. However, tables can
215 // also be paragraphs so don't adjust them.
218 // Will it ever harm to have one '\n' too
219 // many? i.e. that we sometimes will have
220 // three in a row. (Lgb)
224 par = TeXDeeper(buf, text, par, os, texrow,
227 } while (par != paragraphs.end()
228 && par->layout() == pit->layout()
229 && par->params().depth() == pit->params().depth()
230 && par->params().leftIndent() == pit->params().leftIndent());
232 if (open_encoding_ == CJK && cjk_nested) {
233 // We need to close the encoding even if it does not change
234 // to do correct environment nesting
235 os << "\\end{CJK}\n";
237 open_encoding_ = none;
240 if (style.isEnvironment()) {
241 os << "\\end{" << from_ascii(style.latexname()) << "}\n";
245 if (leftindent_open) {
246 os << "\\end{LyXParagraphLeftIndent}\n";
250 if (par != paragraphs.end())
251 LYXERR(Debug::LATEX, "TeXEnvironment...done " << &*par);
259 int latexOptArgInsets(Paragraph const & par, odocstream & os,
260 OutputParams const & runparams, int number)
264 InsetList::const_iterator it = par.insetList().begin();
265 InsetList::const_iterator end = par.insetList().end();
266 for (; it != end && number > 0 ; ++it) {
267 if (it->inset->lyxCode() == OPTARG_CODE) {
269 static_cast<InsetOptArg *>(it->inset);
270 lines += ins->latexOptional(os, runparams);
277 // FIXME: this should be anonymous
278 ParagraphList::const_iterator TeXOnePar(Buffer const & buf,
280 ParagraphList::const_iterator const pit,
281 odocstream & os, TexRow & texrow,
282 OutputParams const & runparams_in,
283 string const & everypar,
284 int start_pos, int end_pos)
286 LYXERR(Debug::LATEX, "TeXOnePar... " << &*pit << " '"
288 BufferParams const & bparams = buf.params();
289 ParagraphList const & paragraphs = text.paragraphs();
291 ParagraphList::const_iterator const priorpit =
292 pit == paragraphs.begin() ? pit : boost::prior(pit);
293 ParagraphList::const_iterator const nextpit =
294 pit == paragraphs.end() ? pit : boost::next(pit);
296 OutputParams runparams = runparams_in;
297 runparams.isLastPar = nextpit == paragraphs.end();
299 if (runparams.verbatim) {
300 int const dist = distance(paragraphs.begin(), pit);
301 Font const outerfont = outerFont(dist, paragraphs);
303 // No newline if only one paragraph in this lyxtext
309 /*bool need_par = */ pit->latex(bparams, outerfont,
310 os, texrow, runparams, start_pos, end_pos);
314 // FIXME This check should not really be needed.
315 // Perhaps we should issue an error if it is.
316 Layout const style = pit->forcePlainLayout() ?
317 bparams.documentClass().plainLayout() : pit->layout();
319 runparams.moving_arg |= style.needprotect;
321 bool const maintext = text.isMainText(buf);
322 // we are at the beginning of an inset and CJK is already open;
323 // we count inheritation levels to get the inset nesting right.
324 if (pit == paragraphs.begin() && !maintext
325 && (cjk_inherited_ > 0 || open_encoding_ == CJK)) {
327 open_encoding_ = none;
330 // This paragraph's language
331 Language const * const par_language = pit->getParLanguage(bparams);
332 // The document's language
333 Language const * const doc_language = bparams.language;
334 // The language that was in effect when the environment this paragraph is
335 // inside of was opened
336 Language const * const outer_language =
337 (runparams.local_font != 0) ?
338 runparams.local_font->language() : doc_language;
339 // The previous language that was in effect is either the language of
340 // the previous paragraph, if there is one, or else the outer language
341 // if there is no previous paragraph
342 Language const * prev_language =
343 (pit != paragraphs.begin()) ?
344 priorpit->getParLanguage(bparams) : outer_language;
346 // When the language is changed at the very start of a LyX environment,
347 // the language switch in the LaTeX code occurs just before switching to
348 // the corresponding LaTeX environment. So, when the environment ends,
349 // we have to properly restore the language that was in effect.
350 bool env_lang_switch = false;
351 if (!priorpit->hasSameLayout(*pit)) {
352 ParagraphList::const_iterator outpit = priorpit;
353 while (outpit != paragraphs.begin()
354 && (outpit->hasSameLayout(*priorpit)
355 || outpit->getDepth() > pit->getDepth()
356 || outpit->getAlign() != outpit->layout().align))
357 outpit = boost::prior(outpit);
358 ParagraphList::const_iterator inpit = boost::next(outpit);
359 bool topped = outpit == paragraphs.begin()
360 && (outpit->hasSameLayout(*priorpit)
361 || outpit->getDepth() > pit->getDepth()
362 || outpit->getAlign() != outpit->layout().align);
363 Language const * const outenv_language = topped ?
365 : outpit->getParLanguage(bparams);
366 Language const * const inenv_language = topped ?
367 outpit->getParLanguage(bparams)
368 : inpit->getParLanguage(bparams);
369 if (outenv_language->babel() != inenv_language->babel()) {
370 if (inenv_language->babel() != par_language->babel())
371 env_lang_switch = true;
372 prev_language = inenv_language;
374 prev_language = outenv_language;
377 if ((par_language->babel() != prev_language->babel() || env_lang_switch)
378 // check if we already put language command in TeXEnvironment()
379 && !(style.isEnvironment()
380 && (pit == paragraphs.begin() ||
381 (priorpit->layout() != pit->layout() &&
382 priorpit->getDepth() <= pit->getDepth())
383 || priorpit->getDepth() < pit->getDepth())))
385 if (!lyxrc.language_command_end.empty() &&
386 prev_language->babel() != outer_language->babel() &&
387 !prev_language->babel().empty())
389 os << from_ascii(subst(lyxrc.language_command_end,
391 prev_language->babel()))
392 // the '%' is necessary to prevent unwanted whitespace
397 // We need to open a new language if we couldn't close the previous
398 // one (because there's no language_command_end); and even if we closed
399 // the previous one, if the current language is different than the
400 // outer_language (which is currently in effect once the previous one
402 if ((lyxrc.language_command_end.empty() ||
403 par_language->babel() != outer_language->babel()) &&
404 !par_language->babel().empty()) {
405 // If we're inside an inset, and that inset is within an \L or \R
406 // (or equivalents), then within the inset, too, any opposite
407 // language paragraph should appear within an \L or \R (in addition
408 // to, outside of, the normal language switch commands).
409 // This behavior is not correct for ArabTeX, though.
410 if ( // not for ArabTeX
411 (par_language->lang() != "arabic_arabtex" &&
412 outer_language->lang() != "arabic_arabtex") &&
413 // are we in an inset?
414 runparams.local_font != 0 &&
415 // is the inset within an \L or \R?
417 // FIXME: currently, we don't check this; this means that
418 // we'll have unnnecessary \L and \R commands, but that
419 // doesn't seem to hurt (though latex will complain)
421 // is this paragraph in the opposite direction?
422 runparams.local_font->isRightToLeft() !=
423 par_language->rightToLeft()
425 // FIXME: I don't have a working copy of the Arabi package, so
426 // I'm not sure if the farsi and arabic_arabi stuff is correct
428 if (par_language->lang() == "farsi")
430 else if (outer_language->lang() == "farsi")
432 else if (par_language->lang() == "arabic_arabi")
434 else if (outer_language->lang() == "arabic_arabi")
436 // remaining RTL languages currently is hebrew
437 else if (par_language->rightToLeft())
442 // With CJK, the CJK tag has to be closed first (see below)
443 if (runparams.encoding->package() != Encoding::CJK) {
444 os << from_ascii(subst(
445 lyxrc.language_command_begin,
447 par_language->babel()))
448 // the '%' is necessary to prevent unwanted whitespace
455 // Switch file encoding if necessary; no need to do this for "default"
456 // encoding, since this only affects the position of the outputted
457 // \inputencoding command; the encoding switch will occur when necessary
458 if (bparams.inputenc == "auto" &&
459 runparams.encoding->package() != Encoding::none) {
460 // Look ahead for future encoding changes.
461 // We try to output them at the beginning of the paragraph,
462 // since the \inputencoding command is not allowed e.g. in
464 for (pos_type i = 0; i < pit->size(); ++i) {
465 char_type const c = pit->getChar(i);
466 Encoding const * const encoding =
467 pit->getFontSettings(bparams, i).language()->encoding();
468 if (encoding->package() != Encoding::CJK &&
469 runparams.encoding->package() == Encoding::inputenc &&
474 // All characters before c are in the ASCII range, and
475 // c is non-ASCII (but no inset), so change the
476 // encoding to that required by the language of c.
477 // With CJK, only add switch if we have CJK content at the beginning
479 if (encoding->package() != Encoding::CJK || i == 0) {
480 pair<bool, int> enc_switch = switchEncoding(os, bparams, runparams,
482 // the following is necessary after a CJK environment in a multilingual
483 // context (nesting issue).
484 if (par_language->encoding()->package() == Encoding::CJK &&
485 open_encoding_ != CJK && cjk_inherited_ == 0) {
486 os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
487 << "}{" << from_ascii(bparams.fontsCJK) << "}%\n";
488 open_encoding_ = CJK;
491 if (encoding->package() != Encoding::none && enc_switch.first) {
492 if (enc_switch.second > 0) {
493 // the '%' is necessary to prevent unwanted whitespace
497 // With CJK, the CJK tag had to be closed first (see above)
498 if (runparams.encoding->package() == Encoding::CJK) {
499 os << from_ascii(subst(
500 lyxrc.language_command_begin,
502 par_language->babel()))
503 // the '%' is necessary to prevent unwanted whitespace
507 runparams.encoding = encoding;
514 bool const useSetSpace = bparams.documentClass().provides("SetSpace");
515 if (pit->allowParagraphCustomization()) {
516 if (pit->params().startOfAppendix()) {
517 os << "\\appendix\n";
521 if (!pit->params().spacing().isDefault()
522 && (pit == paragraphs.begin()
523 || !priorpit->hasSameLayout(*pit)))
525 os << from_ascii(pit->params().spacing().writeEnvirBegin(useSetSpace))
530 if (style.isCommand()) {
536 switch (style.latextype) {
538 os << '\\' << from_ascii(style.latexname());
540 // Separate handling of optional argument inset.
541 if (style.optionalargs > 0) {
542 int ret = latexOptArgInsets(*pit, os, runparams,
550 os << from_ascii(style.latexparam());
552 case LATEX_ITEM_ENVIRONMENT:
553 case LATEX_LIST_ENVIRONMENT:
556 case LATEX_BIB_ENVIRONMENT:
557 // ignore this, the inset will write itself
563 Font const outerfont = outerFont(distance(paragraphs.begin(), pit),
567 os << from_utf8(everypar);
568 bool need_par = pit->latex(bparams, outerfont,
569 os, texrow, runparams, start_pos, end_pos);
571 // Make sure that \\par is done with the font of the last
572 // character if this has another size as the default.
573 // This is necessary because LaTeX (and LyX on the screen)
574 // calculates the space between the baselines according
575 // to this font. (Matthias)
577 // Is this really needed ? (Dekel)
578 // We do not need to use to change the font for the last paragraph
581 Font const font = pit->empty()
582 ? pit->getLayoutFont(bparams, outerfont)
583 : pit->getFont(bparams, pit->size() - 1, outerfont);
585 bool const is_command = style.isCommand();
587 if (style.resfont.size() != font.fontInfo().size()
588 && nextpit != paragraphs.end()
592 os << "\\" << from_ascii(font.latexSize()) << " \\par}";
593 } else if (need_par) {
595 } else if (is_command)
598 bool pending_newline = false;
599 switch (style.latextype) {
600 case LATEX_ITEM_ENVIRONMENT:
601 case LATEX_LIST_ENVIRONMENT:
602 if (nextpit != paragraphs.end()
603 && (pit->params().depth() < nextpit->params().depth()))
604 pending_newline = true;
606 case LATEX_ENVIRONMENT: {
607 // if its the last paragraph of the current environment
608 // skip it otherwise fall through
609 if (nextpit != paragraphs.end() &&
610 (nextpit->layout() != pit->layout()
611 || nextpit->params().depth() != pit->params().depth()))
615 // fall through possible
617 // we don't need it for the last paragraph!!!
618 if (nextpit != paragraphs.end())
619 pending_newline = true;
622 if (pit->allowParagraphCustomization()) {
623 if (!pit->params().spacing().isDefault()
624 && (nextpit == paragraphs.end() || !nextpit->hasSameLayout(*pit)))
626 if (pending_newline) {
630 os << from_ascii(pit->params().spacing().writeEnvirEnd(useSetSpace));
631 pending_newline = true;
635 // Closing the language is needed for the last paragraph; it is also
636 // needed if we're within an \L or \R that we may have opened above (not
637 // necessarily in this paragraph) and are about to close.
638 bool closing_rtl_ltr_environment =
640 (par_language->lang() != "arabic_arabtex" &&
641 outer_language->lang() != "arabic_arabtex") &&
642 // have we opened and \L or \R environment?
643 runparams.local_font != 0 &&
644 runparams.local_font->isRightToLeft() != par_language->rightToLeft() &&
645 // are we about to close the language?
646 ((nextpit != paragraphs.end() &&
647 par_language->babel() !=
648 (nextpit->getParLanguage(bparams))->babel()) ||
649 (nextpit == paragraphs.end() &&
650 par_language->babel() != outer_language->babel()));
652 if (closing_rtl_ltr_environment || (nextpit == paragraphs.end()
653 && par_language->babel() != outer_language->babel())) {
654 // Since \selectlanguage write the language to the aux file,
655 // we need to reset the language at the end of footnote or
658 if (pending_newline) {
662 // when the paragraph uses CJK, the language has to be closed earlier
663 if (font.language()->encoding()->package() != Encoding::CJK) {
664 if (lyxrc.language_command_end.empty()) {
665 if (!prev_language->babel().empty()) {
666 os << from_ascii(subst(
667 lyxrc.language_command_begin,
669 prev_language->babel()));
670 pending_newline = true;
672 } else if (!par_language->babel().empty()) {
673 os << from_ascii(subst(
674 lyxrc.language_command_end,
676 par_language->babel()));
677 pending_newline = true;
681 if (closing_rtl_ltr_environment)
684 if (pending_newline) {
689 // if this is a CJK-paragraph and the next isn't, close CJK
690 // also if the next paragraph is a multilingual environment (because of nesting)
691 if (nextpit != paragraphs.end() && open_encoding_ == CJK &&
692 (nextpit->getParLanguage(bparams)->encoding()->package() != Encoding::CJK ||
693 (nextpit->layout().isEnvironment() && nextpit->isMultiLingual(bparams)))
694 // inbetween environments, CJK has to be closed later (nesting!)
695 && (!style.isEnvironment() || !nextpit->layout().isEnvironment())) {
696 os << "\\end{CJK}\n";
697 open_encoding_ = none;
700 // If this is the last paragraph, close the CJK environment
701 // if necessary. If it's an environment, we'll have to \end that first.
702 if (nextpit == paragraphs.end() && !style.isEnvironment()) {
703 switch (open_encoding_) {
705 // do nothing at the end of child documents
706 if (maintext && buf.masterBuffer() != &buf)
712 os << "\\end{CJK}\n";
717 open_encoding_ = none;
722 open_encoding_ = none;
732 // If this is the last paragraph, and a local_font was set upon entering
733 // the inset, and we're using "auto" or "default" encoding, the encoding
734 // should be set back to that local_font's encoding.
735 // However, do not change the encoding when XeTeX is used.
736 if (nextpit == paragraphs.end() && runparams_in.local_font != 0
737 && runparams_in.encoding != runparams_in.local_font->language()->encoding()
738 && (bparams.inputenc == "auto" || bparams.inputenc == "default")
739 && (!bparams.useXetex)) {
740 runparams_in.encoding = runparams_in.local_font->language()->encoding();
741 os << setEncoding(runparams_in.encoding->iconvName());
743 // Otherwise, the current encoding should be set for the next paragraph.
745 runparams_in.encoding = runparams.encoding;
748 // we don't need a newline for the last paragraph!!!
749 // Note from JMarc: we will re-add a \n explicitly in
750 // TeXEnvironment, because it is needed in this case
751 if (nextpit != paragraphs.end()) {
752 Layout const & next_layout = nextpit->layout();
753 if (style == next_layout
754 // no blank lines before environments!
755 || !next_layout.isEnvironment()
756 // unless there's a depth change
757 // FIXME What we really want to do here is put every \begin and \end
758 // tag on a new line (which was not the case with nested environments).
759 // But in the present state of play, we don't have access to the
760 // information whether the current TeX row is empty or not.
761 // For some ideas about how to fix this, see this thread:
762 // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg145787.html
763 || nextpit->params().depth() != pit->params().depth()) {
769 if (nextpit != paragraphs.end())
770 LYXERR(Debug::LATEX, "TeXOnePar...done " << &*nextpit);
776 // LaTeX all paragraphs
777 void latexParagraphs(Buffer const & buf,
781 OutputParams const & runparams,
782 string const & everypar)
784 bool was_title = false;
785 bool already_title = false;
786 BufferParams const & bparams = buf.params();
787 DocumentClass const & tclass = bparams.documentClass();
788 ParagraphList const & paragraphs = text.paragraphs();
789 ParagraphList::const_iterator par = paragraphs.begin();
790 ParagraphList::const_iterator endpar = paragraphs.end();
792 LASSERT(runparams.par_begin <= runparams.par_end, /**/);
793 // if only part of the paragraphs will be outputed
794 if (runparams.par_begin != runparams.par_end) {
795 par = boost::next(paragraphs.begin(), runparams.par_begin);
796 endpar = boost::next(paragraphs.begin(), runparams.par_end);
797 // runparams will be passed to nested paragraphs, so
798 // we have to reset the range parameters.
799 const_cast<OutputParams&>(runparams).par_begin = 0;
800 const_cast<OutputParams&>(runparams).par_end = 0;
803 bool const maintext = text.isMainText(buf);
804 bool const is_child = buf.masterBuffer() != &buf;
806 // Open a CJK environment at the beginning of the main buffer
807 // if the document's language is a CJK language
808 // (but not in child documents)
809 if (maintext && !is_child
810 && bparams.encoding().package() == Encoding::CJK) {
811 os << "\\begin{CJK}{" << from_ascii(bparams.encoding().latexName())
812 << "}{" << from_ascii(bparams.fontsCJK) << "}%\n";
814 open_encoding_ = CJK;
816 // if "auto begin" is switched off, explicitely switch the
817 // language on at start
818 if (maintext && !lyxrc.language_auto_begin &&
819 !bparams.language->babel().empty()) {
821 os << from_utf8(subst(lyxrc.language_command_begin,
823 bparams.language->babel()))
828 ParagraphList::const_iterator lastpar;
830 while (par != endpar) {
832 // FIXME This check should not be needed. We should
833 // perhaps issue an error if it is.
834 Layout const & layout = par->forcePlainLayout() ?
835 tclass.plainLayout() : par->layout();
837 if (layout.intitle) {
839 lyxerr << "Error in latexParagraphs: You"
840 " should not mix title layouts"
841 " with normal ones." << endl;
842 } else if (!was_title) {
844 if (tclass.titletype() == TITLE_ENVIRONMENT) {
846 << from_ascii(tclass.titlename())
851 } else if (was_title && !already_title) {
852 if (tclass.titletype() == TITLE_ENVIRONMENT) {
853 os << "\\end{" << from_ascii(tclass.titlename())
857 os << "\\" << from_ascii(tclass.titlename())
861 already_title = true;
865 if (layout.isEnvironment() ||
866 !par->params().leftIndent().zero()) {
867 par = TeXEnvironment(buf, text, par, os,
870 par = TeXOnePar(buf, text, par, os, texrow,
871 runparams, everypar);
873 if (distance(lastpar, par) >= distance(lastpar, endpar))
877 // It might be that we only have a title in this document
878 if (was_title && !already_title) {
879 if (tclass.titletype() == TITLE_ENVIRONMENT) {
880 os << "\\end{" << from_ascii(tclass.titlename())
884 os << "\\" << from_ascii(tclass.titlename())
890 // if "auto end" is switched off, explicitely close the language at the end
891 // but only if the last par is in a babel language
892 if (maintext && !lyxrc.language_auto_end && !bparams.language->babel().empty() &&
893 lastpar->getParLanguage(bparams)->encoding()->package() != Encoding::CJK) {
894 os << from_utf8(subst(lyxrc.language_command_end,
896 bparams.language->babel()))
901 // If the last paragraph is an environment, we'll have to close
902 // CJK at the very end to do proper nesting.
903 if (maintext && !is_child && open_encoding_ == CJK) {
904 os << "\\end{CJK}\n";
906 open_encoding_ = none;
909 // reset inherited encoding
910 if (cjk_inherited_ > 0) {
912 if (cjk_inherited_ == 0)
913 open_encoding_ = CJK;
918 pair<bool, int> switchEncoding(odocstream & os, BufferParams const & bparams,
919 OutputParams const & runparams, Encoding const & newEnc,
922 Encoding const & oldEnc = *runparams.encoding;
923 bool moving_arg = runparams.moving_arg;
924 if (!force && ((bparams.inputenc != "auto" && bparams.inputenc != "default")
926 return make_pair(false, 0);
928 // Do nothing if the encoding is unchanged.
929 if (oldEnc.name() == newEnc.name())
930 return make_pair(false, 0);
932 // FIXME We ignore encoding switches from/to encodings that do
933 // neither support the inputenc package nor the CJK package here.
934 // This does of course only work in special cases (e.g. switch from
935 // tis620-0 to latin1, but the text in latin1 contains ASCII only),
936 // but it is the best we can do
937 if (oldEnc.package() == Encoding::none
938 || newEnc.package() == Encoding::none)
939 return make_pair(false, 0);
941 LYXERR(Debug::LATEX, "Changing LaTeX encoding from "
942 << oldEnc.name() << " to " << newEnc.name());
943 os << setEncoding(newEnc.iconvName());
944 if (bparams.inputenc == "default")
945 return make_pair(true, 0);
947 docstring const inputenc_arg(from_ascii(newEnc.latexName()));
948 switch (newEnc.package()) {
950 case Encoding::japanese:
951 // shouldn't ever reach here, see above
952 return make_pair(true, 0);
953 case Encoding::inputenc: {
954 int count = inputenc_arg.length();
955 if (oldEnc.package() == Encoding::CJK &&
956 open_encoding_ == CJK) {
958 open_encoding_ = none;
961 else if (oldEnc.package() == Encoding::inputenc &&
962 open_encoding_ == inputenc) {
964 open_encoding_ = none;
967 if (runparams.local_font != 0
968 && oldEnc.package() == Encoding::CJK) {
969 // within insets, \inputenc switches need
970 // to be embraced within \bgroup...\egroup;
974 open_encoding_ = inputenc;
976 // with the japanese option, inputenc is omitted.
977 if (runparams.use_japanese)
978 return make_pair(true, count);
979 os << "\\inputencoding{" << inputenc_arg << '}';
980 return make_pair(true, count + 16);
982 case Encoding::CJK: {
983 int count = inputenc_arg.length();
984 if (oldEnc.package() == Encoding::CJK &&
985 open_encoding_ == CJK) {
989 if (oldEnc.package() == Encoding::inputenc &&
990 open_encoding_ == inputenc) {
994 os << "\\begin{CJK}{" << inputenc_arg << "}{"
995 << from_ascii(bparams.fontsCJK) << "}";
996 open_encoding_ = CJK;
997 return make_pair(true, count + 15);
1000 // Dead code to avoid a warning:
1001 return make_pair(true, 0);