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"
19 #include "InsetList.h"
23 #include "OutputParams.h"
24 #include "Paragraph.h"
25 #include "ParagraphParameters.h"
26 #include "TextClass.h"
29 #include "insets/InsetBibitem.h"
30 #include "insets/InsetArgument.h"
32 #include "support/lassert.h"
33 #include "support/convert.h"
34 #include "support/debug.h"
35 #include "support/lstrings.h"
36 #include "support/textutils.h"
39 #include <boost/next_prior.hpp>
43 using namespace lyx::support;
56 static int open_encoding_ = none;
57 static int cjk_inherited_ = 0;
58 Language const * prev_env_language_ = 0;
61 string const getPolyglossiaEnvName(Language const * lang)
63 string result = lang->polyglossia();
64 if (result == "arabic")
65 // exceptional spelling; see polyglossia docs.
71 struct TeXEnvironmentData
75 Language const * par_language;
76 Encoding const * prev_encoding;
81 static TeXEnvironmentData prepareEnvironment(Buffer const & buf,
83 ParagraphList::const_iterator pit,
85 OutputParams const & runparams)
87 TeXEnvironmentData data;
89 BufferParams const & bparams = buf.params();
91 // FIXME This test should not be necessary.
92 // We should perhaps issue an error if it is.
93 Layout const & style = text.inset().forcePlainLayout() ?
94 bparams.documentClass().plainLayout() : pit->layout();
96 ParagraphList const & paragraphs = text.paragraphs();
97 ParagraphList::const_iterator const priorpit =
98 pit == paragraphs.begin() ? pit : boost::prior(pit);
100 bool const use_prev_env_language = prev_env_language_ != 0
101 && priorpit->layout().isEnvironment()
102 && (priorpit->getDepth() > pit->getDepth()
103 || (priorpit->getDepth() == pit->getDepth()
104 && priorpit->layout() != pit->layout()));
106 data.prev_encoding = runparams.encoding;
107 data.par_language = pit->getParLanguage(bparams);
108 Language const * const doc_language = bparams.language;
109 Language const * const prev_par_language =
110 (pit != paragraphs.begin())
111 ? (use_prev_env_language ? prev_env_language_
112 : priorpit->getParLanguage(bparams))
115 bool const use_polyglossia = runparams.use_polyglossia;
116 string const par_lang = use_polyglossia ?
117 getPolyglossiaEnvName(data.par_language) : data.par_language->babel();
118 string const prev_par_lang = use_polyglossia ?
119 getPolyglossiaEnvName(prev_par_language) : prev_par_language->babel();
120 string const doc_lang = use_polyglossia ?
121 getPolyglossiaEnvName(doc_language) : doc_language->babel();
122 string const lang_begin_command = use_polyglossia ?
123 "\\begin{$$lang}" : lyxrc.language_command_begin;
124 string const lang_end_command = use_polyglossia ?
125 "\\end{$$lang}" : lyxrc.language_command_end;
127 if (par_lang != prev_par_lang) {
128 if (!lang_end_command.empty() &&
129 prev_par_lang != doc_lang &&
130 !prev_par_lang.empty()) {
131 os << from_ascii(subst(
135 // the '%' is necessary to prevent unwanted whitespace
139 if ((lang_end_command.empty() ||
140 par_lang != doc_lang) &&
142 os << from_ascii(subst(
147 && !data.par_language->polyglossiaOpts().empty())
149 << from_ascii(data.par_language->polyglossiaOpts())
151 // the '%' is necessary to prevent unwanted whitespace
156 data.leftindent_open = false;
157 if (!pit->params().leftIndent().zero()) {
158 os << "\\begin{LyXParagraphLeftIndent}{"
159 << from_ascii(pit->params().leftIndent().asLatexString())
161 data.leftindent_open = true;
164 if (style.isEnvironment()) {
165 os << "\\begin{" << from_ascii(style.latexname()) << '}';
166 if (!style.latexargs().empty()) {
167 OutputParams rp = runparams;
168 rp.local_font = &pit->getFirstFontSettings(bparams);
169 latexArgInsets(paragraphs, pit, os, rp, style.latexargs());
171 if (style.latextype == LATEX_LIST_ENVIRONMENT) {
173 << pit->params().labelWidthString()
175 } else if (style.labeltype == LABEL_BIBLIO) {
176 if (pit->params().labelWidthString().empty())
177 os << '{' << bibitemWidest(buf, runparams) << "}\n";
180 << pit->params().labelWidthString()
183 os << from_ascii(style.latexparam()) << '\n';
187 // in multilingual environments, the CJK tags have to be nested properly
188 data.cjk_nested = false;
189 if (data.par_language->encoding()->package() == Encoding::CJK &&
190 open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
191 if (prev_par_language->encoding()->package() == Encoding::CJK)
192 os << "\\begin{CJK}{" << from_ascii(data.par_language->encoding()->latexName())
193 << "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
194 open_encoding_ = CJK;
195 data.cjk_nested = true;
201 static void finishEnvironment(otexstream & os, OutputParams const & runparams,
202 TeXEnvironmentData const & data)
204 if (open_encoding_ == CJK && data.cjk_nested) {
205 // We need to close the encoding even if it does not change
206 // to do correct environment nesting
207 os << "\\end{CJK}\n";
208 open_encoding_ = none;
211 if (data.style->isEnvironment()) {
212 os << "\\end{" << from_ascii(data.style->latexname()) << "}\n";
213 prev_env_language_ = data.par_language;
214 if (runparams.encoding != data.prev_encoding) {
215 runparams.encoding = data.prev_encoding;
216 if (!runparams.isFullUnicode())
217 os << setEncoding(data.prev_encoding->iconvName());
221 if (data.leftindent_open) {
222 os << "\\end{LyXParagraphLeftIndent}\n";
223 prev_env_language_ = data.par_language;
224 if (runparams.encoding != data.prev_encoding) {
225 runparams.encoding = data.prev_encoding;
226 if (!runparams.isFullUnicode())
227 os << setEncoding(data.prev_encoding->iconvName());
233 void TeXEnvironment(Buffer const & buf, Text const & text,
234 OutputParams const & runparams,
235 pit_type & pit, otexstream & os)
237 ParagraphList const & paragraphs = text.paragraphs();
238 ParagraphList::const_iterator par = paragraphs.constIterator(pit);
239 LYXERR(Debug::LATEX, "TeXEnvironment for paragraph " << pit);
241 Layout const & current_layout = par->layout();
242 depth_type const current_depth = par->params().depth();
243 Length const & current_left_indent = par->params().leftIndent();
245 // This is for debugging purpose at the end.
246 pit_type const par_begin = pit;
247 for (; pit < runparams.par_end; ++pit) {
248 ParagraphList::const_iterator par = paragraphs.constIterator(pit);
250 // check first if this is an higher depth paragraph.
251 bool go_out = (par->params().depth() < current_depth);
252 if (par->params().depth() == current_depth) {
253 // This environment is finished.
254 go_out |= (par->layout() != current_layout);
255 go_out |= (par->params().leftIndent() != current_left_indent);
258 // nothing to do here, restore pit and go out.
263 if (par->layout() == current_layout
264 && par->params().depth() == current_depth
265 && par->params().leftIndent() == current_left_indent) {
266 // We are still in the same environment so TeXOnePar and continue;
267 TeXOnePar(buf, text, pit, os, runparams);
271 // We are now in a deeper environment.
272 // Either par->layout() != current_layout
273 // Or par->params().depth() > current_depth
274 // Or par->params().leftIndent() != current_left_indent)
276 if (par->layout().isParagraph()) {
277 // FIXME (Lgb): How to handle this?
278 //&& !suffixIs(os, "\n\n")
280 // (ARRae) There should be at least one '\n' already but we need there to
281 // be two for Standard paragraphs that are depth-increment'ed to be
282 // output correctly. However, tables can also be paragraphs so
283 // don't adjust them.
285 // FIXME (Lgb): Will it ever harm to have one '\n' too
286 // many? i.e. that we sometimes will have
291 // FIXME This test should not be necessary.
292 // We should perhaps issue an error if it is.
293 bool const force_plain_layout = text.inset().forcePlainLayout();
294 Layout const & style = force_plain_layout
295 ? buf.params().documentClass().plainLayout()
298 if (!style.isEnvironment()) {
299 // This is a standard paragraph, no need to call TeXEnvironment.
300 TeXOnePar(buf, text, pit, os, runparams);
304 // This is a new environment.
305 TeXEnvironmentData const data =
306 prepareEnvironment(buf, text, par, os, runparams);
307 // Recursive call to TeXEnvironment!
308 TeXEnvironment(buf, text, runparams, pit, os);
309 finishEnvironment(os, runparams, data);
312 if (pit != runparams.par_end)
313 LYXERR(Debug::LATEX, "TeXEnvironment for paragraph " << par_begin << " done.");
317 void getArgInsets(otexstream & os, OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs,
318 map<int, lyx::InsetArgument const *> ilist, vector<string> required, string const & prefix)
320 unsigned int const argnr = latexargs.size();
324 for (unsigned int i = 1; i <= argnr; ++i) {
325 map<int, InsetArgument const *>::const_iterator lit = ilist.find(i);
326 bool inserted = false;
327 if (lit != ilist.end()) {
328 InsetArgument const * ins = (*lit).second;
330 Layout::LaTeXArgMap::const_iterator const lait =
331 latexargs.find(ins->name());
332 if (lait != latexargs.end()) {
333 Layout::latexarg arg = (*lait).second;
334 docstring ldelim = arg.mandatory ?
335 from_ascii("{") : from_ascii("[");
336 docstring rdelim = arg.mandatory ?
337 from_ascii("}") : from_ascii("]");
338 if (!arg.ldelim.empty())
340 if (!arg.rdelim.empty())
342 ins->latexArgument(os, runparams, ldelim, rdelim, arg.presetarg);
348 Layout::LaTeXArgMap::const_iterator lait = latexargs.begin();
349 Layout::LaTeXArgMap::const_iterator const laend = latexargs.end();
350 for (; lait != laend; ++lait) {
351 string const name = prefix + convert<string>(i);
352 if ((*lait).first == name) {
353 Layout::latexarg arg = (*lait).second;
355 docstring ldelim = arg.ldelim.empty() ?
356 from_ascii("{") : arg.ldelim;
357 docstring rdelim = arg.rdelim.empty() ?
358 from_ascii("}") : arg.rdelim;
359 os << ldelim << arg.presetarg << rdelim;
360 } else if (!arg.presetarg.empty()) {
361 docstring ldelim = arg.mandatory ?
362 from_ascii("{") : from_ascii("[");
363 docstring rdelim = arg.mandatory ?
364 from_ascii("}") : from_ascii("]");
365 if (!arg.ldelim.empty())
367 if (!arg.rdelim.empty())
369 os << ldelim << arg.presetarg << rdelim;
370 } else if (find(required.begin(), required.end(),
371 (*lait).first) != required.end()) {
372 docstring ldelim = arg.ldelim.empty() ?
373 from_ascii("[") : arg.ldelim;
374 docstring rdelim = arg.rdelim.empty() ?
375 from_ascii("]") : arg.rdelim;
376 os << ldelim << rdelim;
389 void latexArgInsets(Paragraph const & par, otexstream & os,
390 OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs, string const & prefix)
392 map<int, InsetArgument const *> ilist;
393 vector<string> required;
395 InsetList::const_iterator it = par.insetList().begin();
396 InsetList::const_iterator end = par.insetList().end();
397 for (; it != end; ++it) {
398 if (it->inset->lyxCode() == ARG_CODE) {
399 InsetArgument const * ins =
400 static_cast<InsetArgument const *>(it->inset);
401 if (ins->name().empty())
402 LYXERR0("Error: Unnamed argument inset!");
404 string const name = prefix.empty() ? ins->name() : split(ins->name(), ':');
405 unsigned int const nr = convert<unsigned int>(name);
407 Layout::LaTeXArgMap::const_iterator const lit =
408 latexargs.find(ins->name());
409 if (lit != latexargs.end()) {
410 Layout::latexarg const & arg = (*lit).second;
411 if (!arg.requires.empty()) {
412 vector<string> req = getVectorFromString(arg.requires);
413 required.insert(required.end(), req.begin(), req.end());
419 getArgInsets(os, runparams, latexargs, ilist, required, prefix);
423 void latexArgInsets(ParagraphList const & pars, ParagraphList::const_iterator pit,
424 otexstream & os, OutputParams const & runparams, Layout::LaTeXArgMap const & latexargs,
425 string const & prefix)
427 map<int, InsetArgument const *> ilist;
428 vector<string> required;
430 depth_type const current_depth = pit->params().depth();
431 Layout const current_layout = pit->layout();
433 // get the first paragraph in sequence with this layout and depth
436 if (boost::prior(pit, offset) == pars.begin())
438 ParagraphList::const_iterator priorpit = boost::prior(pit, offset + 1);
439 if (priorpit->layout() == current_layout
440 && priorpit->params().depth() == current_depth)
446 ParagraphList::const_iterator spit = boost::prior(pit, offset);
448 for (; spit != pars.end(); ++spit) {
449 if (spit->layout() != current_layout || spit->params().depth() < current_depth)
451 if (spit->params().depth() > current_depth)
453 InsetList::const_iterator it = spit->insetList().begin();
454 InsetList::const_iterator end = spit->insetList().end();
455 for (; it != end; ++it) {
456 if (it->inset->lyxCode() == ARG_CODE) {
457 InsetArgument const * ins =
458 static_cast<InsetArgument const *>(it->inset);
459 if (ins->name().empty())
460 LYXERR0("Error: Unnamed argument inset!");
462 string const name = prefix.empty() ? ins->name() : split(ins->name(), ':');
463 unsigned int const nr = convert<unsigned int>(name);
464 if (ilist.find(nr) == ilist.end())
466 Layout::LaTeXArgMap::const_iterator const lit =
467 latexargs.find(ins->name());
468 if (lit != latexargs.end()) {
469 Layout::latexarg const & arg = (*lit).second;
470 if (!arg.requires.empty()) {
471 vector<string> req = getVectorFromString(arg.requires);
472 required.insert(required.end(), req.begin(), req.end());
479 getArgInsets(os, runparams, latexargs, ilist, required, prefix);
484 // output the proper paragraph start according to latextype.
485 void parStartCommand(Paragraph const & par, otexstream & os,
486 OutputParams const & runparams, Layout const & style)
488 switch (style.latextype) {
490 os << '\\' << from_ascii(style.latexname());
493 if (!style.latexargs().empty())
494 latexArgInsets(par, os, runparams, style.latexargs());
495 os << from_ascii(style.latexparam());
497 case LATEX_ITEM_ENVIRONMENT:
498 case LATEX_LIST_ENVIRONMENT:
499 os << "\\" + style.itemcommand();
501 if (!style.itemargs().empty())
502 latexArgInsets(par, os, runparams, style.itemargs(), "item:");
505 case LATEX_BIB_ENVIRONMENT:
506 // ignore this, the inset will write itself
515 // FIXME: this should be anonymous
516 void TeXOnePar(Buffer const & buf,
520 OutputParams const & runparams_in,
521 string const & everypar,
522 int start_pos, int end_pos)
524 BufferParams const & bparams = buf.params();
525 ParagraphList const & paragraphs = text.paragraphs();
526 Paragraph const & par = paragraphs.at(pit);
527 // FIXME This check should not really be needed.
528 // Perhaps we should issue an error if it is.
529 Layout const style = text.inset().forcePlainLayout() ?
530 bparams.documentClass().plainLayout() : par.layout();
532 if (style.inpreamble)
535 LYXERR(Debug::LATEX, "TeXOnePar for paragraph " << pit << " ptr " << &par << " '"
538 OutputParams runparams = runparams_in;
539 runparams.isLastPar = (pit == pit_type(paragraphs.size() - 1));
540 // We reinitialze par begin and end to be on the safe side
541 // with embedded inset as we don't know if they set those
543 runparams.par_begin = 0;
544 runparams.par_end = 0;
546 bool const maintext = text.isMainText();
547 // we are at the beginning of an inset and CJK is already open;
548 // we count inheritation levels to get the inset nesting right.
549 if (pit == 0 && !maintext
550 && (cjk_inherited_ > 0 || open_encoding_ == CJK)) {
552 open_encoding_ = none;
555 if (text.inset().isPassThru()) {
556 Font const outerfont = text.outerFont(pit);
558 // No newline before first paragraph in this lyxtext
561 if (!text.inset().getLayout().parbreakIsNewline())
565 par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
569 Paragraph const * nextpar = runparams.isLastPar
570 ? 0 : ¶graphs.at(pit + 1);
572 if (style.pass_thru) {
573 Font const outerfont = text.outerFont(pit);
574 runparams.local_font = &par.getFirstFontSettings(bparams);
575 parStartCommand(par, os, runparams, style);
577 par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
579 // I did not create a parEndCommand for this minuscule
580 // task because in the other user of parStartCommand
581 // the code is different (JMarc)
582 if (style.isCommand())
586 if (!style.parbreak_is_newline) {
588 } else if (nextpar && !style.isEnvironment()) {
589 Layout const nextstyle = text.inset().forcePlainLayout()
590 ? bparams.documentClass().plainLayout()
592 if (nextstyle.name() != style.name())
599 // This paragraph's language
600 Language const * const par_language = par.getParLanguage(bparams);
601 // The document's language
602 Language const * const doc_language = bparams.language;
603 // The language that was in effect when the environment this paragraph is
604 // inside of was opened
605 Language const * const outer_language =
606 (runparams.local_font != 0) ?
607 runparams.local_font->language() : doc_language;
609 Paragraph const * priorpar = (pit == 0) ? 0 : ¶graphs.at(pit - 1);
611 // The previous language that was in effect is the language of the
612 // previous paragraph, unless the previous paragraph is inside an
613 // environment with nesting depth greater than (or equal to, but with
614 // a different layout) the current one. If there is no previous
615 // paragraph, the previous language is the outer language.
616 bool const use_prev_env_language = prev_env_language_ != 0
618 && priorpar->layout().isEnvironment()
619 && (priorpar->getDepth() > par.getDepth()
620 || (priorpar->getDepth() == par.getDepth()
621 && priorpar->layout() != par.layout()));
622 Language const * const prev_language =
624 ? (use_prev_env_language ? prev_env_language_
625 : priorpar->getParLanguage(bparams))
629 bool const use_polyglossia = runparams.use_polyglossia;
630 string const par_lang = use_polyglossia ?
631 getPolyglossiaEnvName(par_language): par_language->babel();
632 string const prev_lang = use_polyglossia ?
633 getPolyglossiaEnvName(prev_language) : prev_language->babel();
634 string const doc_lang = use_polyglossia ?
635 getPolyglossiaEnvName(doc_language) : doc_language->babel();
636 string const outer_lang = use_polyglossia ?
637 getPolyglossiaEnvName(outer_language) : outer_language->babel();
638 string lang_begin_command = use_polyglossia ?
639 "\\begin{$$lang}" : lyxrc.language_command_begin;
640 string lang_end_command = use_polyglossia ?
641 "\\end{$$lang}" : lyxrc.language_command_end;
642 // the '%' is necessary to prevent unwanted whitespace
643 string lang_command_termination = "%\n";
645 // In some insets (such as Arguments), we cannot use \selectlanguage
646 bool const localswitch = !use_polyglossia
647 && text.inset().getLayout().forcelocalfontswitch();
649 lang_begin_command = lyxrc.language_command_local;
650 lang_end_command = "}";
651 lang_command_termination.clear();
654 if (par_lang != prev_lang
655 // check if we already put language command in TeXEnvironment()
656 && !(style.isEnvironment()
657 && (pit == 0 || (priorpar->layout() != par.layout()
658 && priorpar->getDepth() <= par.getDepth())
659 || priorpar->getDepth() < par.getDepth())))
661 if (!lang_end_command.empty() &&
662 prev_lang != outer_lang &&
665 os << from_ascii(subst(lang_end_command,
668 << lang_command_termination;
671 // We need to open a new language if we couldn't close the previous
672 // one (because there's no language_command_end); and even if we closed
673 // the previous one, if the current language is different than the
674 // outer_language (which is currently in effect once the previous one
676 if ((lang_end_command.empty() || par_lang != outer_lang)
677 && !par_lang.empty()) {
678 // If we're inside an inset, and that inset is within an \L or \R
679 // (or equivalents), then within the inset, too, any opposite
680 // language paragraph should appear within an \L or \R (in addition
681 // to, outside of, the normal language switch commands).
682 // This behavior is not correct for ArabTeX, though.
685 && par_language->lang() != "arabic_arabtex"
686 && outer_language->lang() != "arabic_arabtex"
687 // are we in an inset?
688 && runparams.local_font != 0
689 // is the inset within an \L or \R?
691 // FIXME: currently, we don't check this; this means that
692 // we'll have unnnecessary \L and \R commands, but that
693 // doesn't seem to hurt (though latex will complain)
695 // is this paragraph in the opposite direction?
696 && runparams.local_font->isRightToLeft() != par_language->rightToLeft()) {
697 // FIXME: I don't have a working copy of the Arabi package, so
698 // I'm not sure if the farsi and arabic_arabi stuff is correct
700 if (par_language->lang() == "farsi")
702 else if (outer_language->lang() == "farsi")
704 else if (par_language->lang() == "arabic_arabi")
706 else if (outer_language->lang() == "arabic_arabi")
708 // remaining RTL languages currently is hebrew
709 else if (par_language->rightToLeft())
714 // With CJK, the CJK tag has to be closed first (see below)
715 if (runparams.encoding->package() != Encoding::CJK
716 && !par_lang.empty()) {
717 os << from_ascii(subst(
722 && !par_language->polyglossiaOpts().empty())
724 << from_ascii(par_language->polyglossiaOpts())
726 os << lang_command_termination;
731 // Switch file encoding if necessary; no need to do this for "default"
732 // encoding, since this only affects the position of the outputted
733 // \inputencoding command; the encoding switch will occur when necessary
734 if (bparams.inputenc == "auto"
735 && runparams.encoding->package() != Encoding::none) {
736 // Look ahead for future encoding changes.
737 // We try to output them at the beginning of the paragraph,
738 // since the \inputencoding command is not allowed e.g. in
739 // sections. For this reason we only set runparams.moving_arg
740 // after checking for the encoding change, otherwise the
741 // change would be always avoided by switchEncoding().
742 for (pos_type i = 0; i < par.size(); ++i) {
743 char_type const c = par.getChar(i);
744 Encoding const * const encoding =
745 par.getFontSettings(bparams, i).language()->encoding();
746 if (encoding->package() != Encoding::CJK
747 && runparams.encoding->package() == Encoding::inputenc
752 // All characters before c are in the ASCII range, and
753 // c is non-ASCII (but no inset), so change the
754 // encoding to that required by the language of c.
755 // With CJK, only add switch if we have CJK content at the beginning
757 if (i != 0 && encoding->package() == Encoding::CJK)
760 pair<bool, int> enc_switch = switchEncoding(os.os(),
761 bparams, runparams, *encoding);
762 // the following is necessary after a CJK environment in a multilingual
763 // context (nesting issue).
764 if (par_language->encoding()->package() == Encoding::CJK
765 && open_encoding_ != CJK && cjk_inherited_ == 0) {
766 os << "\\begin{CJK}{" << from_ascii(par_language->encoding()->latexName())
767 << "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
768 open_encoding_ = CJK;
770 if (encoding->package() != Encoding::none && enc_switch.first) {
771 if (enc_switch.second > 0) {
772 // the '%' is necessary to prevent unwanted whitespace
775 // With CJK, the CJK tag had to be closed first (see above)
776 if (runparams.encoding->package() == Encoding::CJK
777 && !par_lang.empty()) {
778 os << from_ascii(subst(
782 << lang_command_termination;
784 runparams.encoding = encoding;
790 runparams.moving_arg |= style.needprotect;
791 Encoding const * const prev_encoding = runparams.encoding;
793 bool const useSetSpace = bparams.documentClass().provides("SetSpace");
794 if (par.allowParagraphCustomization()) {
795 if (par.params().startOfAppendix()) {
796 os << "\\appendix\n";
799 if (!par.params().spacing().isDefault()
800 && (pit == 0 || !priorpar->hasSameLayout(par)))
802 os << from_ascii(par.params().spacing().writeEnvirBegin(useSetSpace))
806 if (style.isCommand()) {
811 runparams.local_font = &par.getFirstFontSettings(bparams);
812 parStartCommand(par, os, runparams, style);
813 Font const outerfont = text.outerFont(pit);
816 os << from_utf8(everypar);
817 par.latex(bparams, outerfont, os, runparams, start_pos, end_pos);
819 // Make sure that \\par is done with the font of the last
820 // character if this has another size as the default.
821 // This is necessary because LaTeX (and LyX on the screen)
822 // calculates the space between the baselines according
823 // to this font. (Matthias)
825 // Is this really needed ? (Dekel)
826 // We do not need to use to change the font for the last paragraph
829 Font const font = par.empty()
830 ? par.getLayoutFont(bparams, outerfont)
831 : par.getFont(bparams, par.size() - 1, outerfont);
833 bool const is_command = style.isCommand();
835 if (style.resfont.size() != font.fontInfo().size()
839 os << "\\" << from_ascii(font.latexSize()) << " \\par}";
840 } else if (is_command) {
842 if (!style.postcommandargs().empty())
843 latexArgInsets(par, os, runparams, style.postcommandargs(), "post:");
844 if (runparams.encoding != prev_encoding) {
845 runparams.encoding = prev_encoding;
846 if (!runparams.isFullUnicode())
847 os << setEncoding(prev_encoding->iconvName());
851 bool pending_newline = false;
852 bool unskip_newline = false;
853 switch (style.latextype) {
854 case LATEX_ITEM_ENVIRONMENT:
855 case LATEX_LIST_ENVIRONMENT:
856 if (nextpar && (par.params().depth() < nextpar->params().depth()))
857 pending_newline = true;
859 case LATEX_ENVIRONMENT: {
860 // if its the last paragraph of the current environment
861 // skip it otherwise fall through
863 && (nextpar->layout() != par.layout()
864 || nextpar->params().depth() != par.params().depth()))
868 // fall through possible
870 // we don't need it for the last paragraph!!!
872 pending_newline = true;
875 if (par.allowParagraphCustomization()) {
876 if (!par.params().spacing().isDefault()
877 && (runparams.isLastPar || !nextpar->hasSameLayout(par))) {
880 os << from_ascii(par.params().spacing().writeEnvirEnd(useSetSpace));
881 pending_newline = true;
885 // Closing the language is needed for the last paragraph; it is also
886 // needed if we're within an \L or \R that we may have opened above (not
887 // necessarily in this paragraph) and are about to close.
888 bool closing_rtl_ltr_environment = !use_polyglossia
890 && (par_language->lang() != "arabic_arabtex"
891 && outer_language->lang() != "arabic_arabtex")
892 // have we opened and \L or \R environment?
893 && runparams.local_font != 0
894 && runparams.local_font->isRightToLeft() != par_language->rightToLeft()
895 // are we about to close the language?
896 &&((nextpar && par_language->babel() != (nextpar->getParLanguage(bparams))->babel())
897 || (runparams.isLastPar && par_language->babel() != outer_language->babel()));
899 if (closing_rtl_ltr_environment
900 || (runparams.isLastPar
901 && ((!use_polyglossia && par_language->babel() != outer_language->babel())
902 || (use_polyglossia && par_language->polyglossia() != outer_language->polyglossia())))) {
903 // Since \selectlanguage write the language to the aux file,
904 // we need to reset the language at the end of footnote or
910 // when the paragraph uses CJK, the language has to be closed earlier
911 if (font.language()->encoding()->package() != Encoding::CJK) {
912 if (lang_end_command.empty()) {
913 // If this is a child, we should restore the
914 // master language after the last paragraph.
915 Language const * const current_language =
916 (runparams.isLastPar && runparams.master_language)
917 ? runparams.master_language
919 string const current_lang = use_polyglossia
920 ? getPolyglossiaEnvName(current_language)
921 : current_language->babel();
922 if (!current_lang.empty()) {
923 os << from_ascii(subst(
927 pending_newline = !localswitch;
928 unskip_newline = !localswitch;
930 } else if (!par_lang.empty()) {
931 os << from_ascii(subst(
935 pending_newline = !localswitch;
936 unskip_newline = !localswitch;
940 if (closing_rtl_ltr_environment)
943 if (pending_newline) {
945 // prevent unwanted whitespace
950 // if this is a CJK-paragraph and the next isn't, close CJK
951 // also if the next paragraph is a multilingual environment (because of nesting)
953 && open_encoding_ == CJK
954 && (nextpar->getParLanguage(bparams)->encoding()->package() != Encoding::CJK
955 || (nextpar->layout().isEnvironment() && nextpar->isMultiLingual(bparams)))
956 // inbetween environments, CJK has to be closed later (nesting!)
957 && (!style.isEnvironment() || !nextpar->layout().isEnvironment())) {
958 os << "\\end{CJK}\n";
959 open_encoding_ = none;
962 // If this is the last paragraph, close the CJK environment
963 // if necessary. If it's an environment, we'll have to \end that first.
964 if (runparams.isLastPar && !style.isEnvironment()) {
965 switch (open_encoding_) {
967 // do nothing at the end of child documents
968 if (maintext && buf.masterBuffer() != &buf)
972 os << "\n\\end{CJK}\n";
976 open_encoding_ = none;
981 open_encoding_ = none;
991 // If this is the last paragraph, and a local_font was set upon entering
992 // the inset, and we're using "auto" or "default" encoding, the encoding
993 // should be set back to that local_font's encoding.
994 // However, do not change the encoding when a fully unicode aware backend
995 // such as XeTeX is used.
996 if (runparams.isLastPar && runparams_in.local_font != 0
997 && runparams_in.encoding != runparams_in.local_font->language()->encoding()
998 && (bparams.inputenc == "auto" || bparams.inputenc == "default")
999 && (!runparams.isFullUnicode())) {
1000 runparams_in.encoding = runparams_in.local_font->language()->encoding();
1001 os << setEncoding(runparams_in.encoding->iconvName());
1003 // Otherwise, the current encoding should be set for the next paragraph.
1005 runparams_in.encoding = runparams.encoding;
1008 // we don't need a newline for the last paragraph!!!
1009 // Note from JMarc: we will re-add a \n explicitly in
1010 // TeXEnvironment, because it is needed in this case
1012 Layout const & next_layout = nextpar->layout();
1013 if (style == next_layout
1014 // no blank lines before environments!
1015 || !next_layout.isEnvironment()
1016 // unless there's a depth change
1017 // FIXME What we really want to do here is put every \begin and \end
1018 // tag on a new line (which was not the case with nested environments).
1019 // But in the present state of play, we don't have access to the
1020 // information whether the current TeX row is empty or not.
1021 // For some ideas about how to fix this, see this thread:
1022 // http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg145787.html
1023 || nextpar->params().depth() != par.params().depth()) {
1028 LYXERR(Debug::LATEX, "TeXOnePar for paragraph " << pit << " done; ptr "
1029 << &par << " next " << nextpar);
1035 // LaTeX all paragraphs
1036 void latexParagraphs(Buffer const & buf,
1039 OutputParams const & runparams,
1040 string const & everypar)
1042 BufferParams const & bparams = buf.params();
1044 bool const maintext = text.isMainText();
1045 bool const is_child = buf.masterBuffer() != &buf;
1047 // Open a CJK environment at the beginning of the main buffer
1048 // if the document's language is a CJK language
1049 // (but not in child documents)
1050 if (maintext && !is_child
1051 && bparams.encoding().package() == Encoding::CJK) {
1052 os << "\\begin{CJK}{" << from_ascii(bparams.encoding().latexName())
1053 << "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
1054 open_encoding_ = CJK;
1056 // if "auto begin" is switched off, explicitly switch the
1057 // language on at start
1058 string const mainlang = runparams.use_polyglossia
1059 ? getPolyglossiaEnvName(bparams.language)
1060 : bparams.language->babel();
1061 string const lang_begin_command = runparams.use_polyglossia ?
1062 "\\begin{$$lang}" : lyxrc.language_command_begin;
1064 if (maintext && !lyxrc.language_auto_begin &&
1065 !mainlang.empty()) {
1067 os << from_utf8(subst(lang_begin_command,
1070 if (runparams.use_polyglossia
1071 && !bparams.language->polyglossiaOpts().empty())
1073 << from_ascii(bparams.language->polyglossiaOpts())
1078 ParagraphList const & paragraphs = text.paragraphs();
1079 LASSERT(runparams.par_begin <= runparams.par_end, /**/);
1081 if (runparams.par_begin == runparams.par_end) {
1082 // The full doc will be exported but it is easier to just rely on
1083 // runparams range parameters that will be passed TeXEnvironment.
1084 runparams.par_begin = 0;
1085 runparams.par_end = paragraphs.size();
1088 pit_type pit = runparams.par_begin;
1089 // lastpit is for the language check after the loop.
1090 pit_type lastpit = pit;
1091 // variables used in the loop:
1092 bool was_title = false;
1093 bool already_title = false;
1094 DocumentClass const & tclass = bparams.documentClass();
1096 for (; pit < runparams.par_end; ++pit) {
1098 ParagraphList::const_iterator par = paragraphs.constIterator(pit);
1100 // FIXME This check should not be needed. We should
1101 // perhaps issue an error if it is.
1102 Layout const & layout = text.inset().forcePlainLayout() ?
1103 tclass.plainLayout() : par->layout();
1105 if (layout.intitle) {
1106 if (already_title) {
1107 LYXERR0("Error in latexParagraphs: You"
1108 " should not mix title layouts"
1109 " with normal ones.");
1110 } else if (!was_title) {
1112 if (tclass.titletype() == TITLE_ENVIRONMENT) {
1114 << from_ascii(tclass.titlename())
1118 } else if (was_title && !already_title) {
1119 if (tclass.titletype() == TITLE_ENVIRONMENT) {
1120 os << "\\end{" << from_ascii(tclass.titlename())
1124 os << "\\" << from_ascii(tclass.titlename())
1127 already_title = true;
1132 if (!layout.isEnvironment() && par->params().leftIndent().zero()) {
1133 // This is a standard top level paragraph, TeX it and continue.
1134 TeXOnePar(buf, text, pit, os, runparams, everypar);
1138 TeXEnvironmentData const data =
1139 prepareEnvironment(buf, text, par, os, runparams);
1140 // pit can be changed in TeXEnvironment.
1141 TeXEnvironment(buf, text, runparams, pit, os);
1142 finishEnvironment(os, runparams, data);
1145 if (pit == runparams.par_end) {
1146 // Make sure that the last paragraph is
1147 // correctly terminated (because TeXOnePar does
1148 // not add a \n in this case)
1152 // It might be that we only have a title in this document
1153 if (was_title && !already_title) {
1154 if (tclass.titletype() == TITLE_ENVIRONMENT) {
1155 os << "\\end{" << from_ascii(tclass.titlename())
1158 os << "\\" << from_ascii(tclass.titlename())
1163 // if "auto end" is switched off, explicitly close the language at the end
1164 // but only if the last par is in a babel language
1165 string const lang_end_command = runparams.use_polyglossia ?
1166 "\\end{$$lang}" : lyxrc.language_command_end;
1167 if (maintext && !lyxrc.language_auto_end && !mainlang.empty() &&
1168 paragraphs.at(lastpit).getParLanguage(bparams)->encoding()->package() != Encoding::CJK) {
1169 os << from_utf8(subst(lang_end_command,
1175 // If the last paragraph is an environment, we'll have to close
1176 // CJK at the very end to do proper nesting.
1177 if (maintext && !is_child && open_encoding_ == CJK) {
1178 os << "\\end{CJK}\n";
1179 open_encoding_ = none;
1182 // reset inherited encoding
1183 if (cjk_inherited_ > 0) {
1184 cjk_inherited_ -= 1;
1185 if (cjk_inherited_ == 0)
1186 open_encoding_ = CJK;
1191 pair<bool, int> switchEncoding(odocstream & os, BufferParams const & bparams,
1192 OutputParams const & runparams, Encoding const & newEnc,
1195 Encoding const & oldEnc = *runparams.encoding;
1196 bool moving_arg = runparams.moving_arg;
1197 if (!force && ((bparams.inputenc != "auto" && bparams.inputenc != "default")
1199 return make_pair(false, 0);
1201 // Do nothing if the encoding is unchanged.
1202 if (oldEnc.name() == newEnc.name())
1203 return make_pair(false, 0);
1205 // FIXME We ignore encoding switches from/to encodings that do
1206 // neither support the inputenc package nor the CJK package here.
1207 // This does of course only work in special cases (e.g. switch from
1208 // tis620-0 to latin1, but the text in latin1 contains ASCII only),
1209 // but it is the best we can do
1210 if (oldEnc.package() == Encoding::none
1211 || newEnc.package() == Encoding::none)
1212 return make_pair(false, 0);
1214 LYXERR(Debug::LATEX, "Changing LaTeX encoding from "
1215 << oldEnc.name() << " to " << newEnc.name());
1216 os << setEncoding(newEnc.iconvName());
1217 if (bparams.inputenc == "default")
1218 return make_pair(true, 0);
1220 docstring const inputenc_arg(from_ascii(newEnc.latexName()));
1221 switch (newEnc.package()) {
1222 case Encoding::none:
1223 case Encoding::japanese:
1224 // shouldn't ever reach here, see above
1225 return make_pair(true, 0);
1226 case Encoding::inputenc: {
1227 int count = inputenc_arg.length();
1228 if (oldEnc.package() == Encoding::CJK &&
1229 open_encoding_ == CJK) {
1231 open_encoding_ = none;
1234 else if (oldEnc.package() == Encoding::inputenc &&
1235 open_encoding_ == inputenc) {
1237 open_encoding_ = none;
1240 if (runparams.local_font != 0
1241 && oldEnc.package() == Encoding::CJK) {
1242 // within insets, \inputenc switches need
1243 // to be embraced within \bgroup...\egroup;
1247 open_encoding_ = inputenc;
1249 // with the japanese option, inputenc is omitted.
1250 if (runparams.use_japanese)
1251 return make_pair(true, count);
1252 os << "\\inputencoding{" << inputenc_arg << '}';
1253 return make_pair(true, count + 16);
1255 case Encoding::CJK: {
1256 int count = inputenc_arg.length();
1257 if (oldEnc.package() == Encoding::CJK &&
1258 open_encoding_ == CJK) {
1262 if (oldEnc.package() == Encoding::inputenc &&
1263 open_encoding_ == inputenc) {
1267 os << "\\begin{CJK}{" << inputenc_arg << "}{"
1268 << from_ascii(bparams.fonts_cjk) << "}";
1269 open_encoding_ = CJK;
1270 return make_pair(true, count + 15);
1273 // Dead code to avoid a warning:
1274 return make_pair(true, 0);