2 * \file LaTeXFeatures.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
8 * \author Jean-Marc Lasgouttes
10 * \author André Pönitz
12 * Full author contact details are available in file CREDITS.
17 #include "LaTeXFeatures.h"
20 #include "BufferParams.h"
22 #include "Converter.h"
25 #include "FloatList.h"
27 #include "LaTeXPackages.h"
31 #include "TextClass.h"
33 #include "insets/InsetLayout.h"
35 #include "support/debug.h"
36 #include "support/docstream.h"
37 #include "support/FileName.h"
38 #include "support/filetools.h"
39 #include "support/gettext.h"
40 #include "support/lstrings.h"
41 #include "support/regex.h"
47 using namespace lyx::support;
52 /////////////////////////////////////////////////////////////////////
56 /////////////////////////////////////////////////////////////////////
58 //\NeedsTeXFormat{LaTeX2e}
59 //\ProvidesPackage{lyx}[1996/01/11 LLE v0.2 (LyX LaTeX Extensions)]
60 //\message{LyX LaTeX Extensions (LLE v0.2) of 11-Jan-1996.}
62 static docstring const lyx_def = from_ascii(
63 "\\providecommand{\\LyX}{L\\kern-.1667em\\lower.25em\\hbox{Y}\\kern-.125emX\\@}");
65 static docstring const lyx_hyperref_def = from_ascii(
66 "\\providecommand{\\LyX}{\\texorpdfstring%\n"
67 " {L\\kern-.1667em\\lower.25em\\hbox{Y}\\kern-.125emX\\@}\n"
70 static docstring const noun_def = from_ascii(
71 "\\newcommand{\\noun}[1]{\\textsc{#1}}");
73 static docstring const lyxarrow_def = from_ascii(
74 "\\DeclareRobustCommand*{\\lyxarrow}{%\n"
76 "{\\leavevmode\\,$\\triangleleft$\\,\\allowbreak}\n"
77 "{\\leavevmode\\,$\\triangleright$\\,\\allowbreak}}");
79 // for quotes without babel. This does not give perfect results, but
80 // anybody serious about non-english quotes should use babel (JMarc).
82 static docstring const quotedblbase_def = from_ascii(
83 "\\ProvideTextCommandDefault{\\quotedblbase}{%\n"
84 " \\raisebox{-1.4ex}[1ex][.5ex]{\\textquotedblright}%\n"
85 " \\penalty10000\\hskip0em\\relax%\n"
88 static docstring const quotesinglbase_def = from_ascii(
89 "\\ProvideTextCommandDefault{\\quotesinglbase}{%\n"
90 " \\raisebox{-1.4ex}[1ex][.5ex]{\\textquoteright}%\n"
91 " \\penalty10000\\hskip0em\\relax%\n"
94 static docstring const guillemotleft_def = from_ascii(
95 "\\ProvideTextCommandDefault{\\guillemotleft}{%\n"
96 " {\\usefont{U}{lasy}{m}{n}\\char'50\\kern-.15em\\char'50}%\n"
97 "\\penalty10000\\hskip0pt\\relax%\n"
100 static docstring const guillemotright_def = from_ascii(
101 "\\ProvideTextCommandDefault{\\guillemotright}{%\n"
102 " \\penalty10000\\hskip0pt%\n"
103 " {\\usefont{U}{lasy}{m}{n}\\char'51\\kern-.15em\\char'51}%\n"
106 static docstring const guilsinglleft_def = from_ascii(
107 "\\ProvideTextCommandDefault{\\guilsinglleft}{%\n"
108 " {\\usefont{U}{lasy}{m}{n}\\char'50}%\n"
109 " \\penalty10000\\hskip0pt\\relax%\n"
112 static docstring const guilsinglright_def = from_ascii(
113 "\\ProvideTextCommandDefault{\\guilsinglright}{%\n"
114 " \\penalty10000\\hskip0pt%\n"
115 " {\\usefont{U}{lasy}{m}{n}\\char'51}%\n"
118 static docstring const paragraphleftindent_def = from_ascii(
119 "\\newenvironment{LyXParagraphLeftIndent}[1]%\n"
121 " \\begin{list}{}{%\n"
122 " \\setlength{\\topsep}{0pt}%\n"
123 " \\addtolength{\\leftmargin}{#1}\n"
124 // ho hum, yet more things commented out with no hint as to why they
125 // weren't just removed
126 // "%% \\addtolength{\\leftmargin}{#1\\textwidth}\n"
127 // "%% \\setlength{\\textwidth}{#2\\textwidth}\n"
128 // "%% \\setlength\\listparindent\\parindent%\n"
129 // "%% \\setlength\\itemindent\\parindent%\n"
130 " \\setlength{\\parsep}{0pt plus 1pt}%\n"
136 static docstring const floatingfootnote_def = from_ascii(
137 "%% Special footnote code from the package 'stblftnt.sty'\n"
138 "%% Author: Robin Fairbairns -- Last revised Dec 13 1996\n"
139 "\\let\\SF@@footnote\\footnote\n"
140 "\\def\\footnote{\\ifx\\protect\\@typeset@protect\n"
141 " \\expandafter\\SF@@footnote\n"
143 " \\expandafter\\SF@gobble@opt\n"
146 "\\expandafter\\def\\csname SF@gobble@opt \\endcsname{\\@ifnextchar[%]\n"
147 " \\SF@gobble@twobracket\n"
150 "\\edef\\SF@gobble@opt{\\noexpand\\protect\n"
151 " \\expandafter\\noexpand\\csname SF@gobble@opt \\endcsname}\n"
152 "\\def\\SF@gobble@twobracket[#1]#2{}\n");
154 static docstring const binom_def = from_ascii(
155 "%% Binom macro for standard LaTeX users\n"
156 "\\newcommand{\\binom}[2]{{#1 \\choose #2}}\n");
158 static docstring const mathcircumflex_def = from_ascii(
159 "%% For printing a cirumflex inside a formula\n"
160 "\\newcommand{\\mathcircumflex}[0]{\\mbox{\\^{}}}\n");
162 static docstring const tabularnewline_def = from_ascii(
163 "%% Because html converters don't know tabularnewline\n"
164 "\\providecommand{\\tabularnewline}{\\\\}\n");
166 static docstring const lyxgreyedout_def = from_ascii(
167 "%% The greyedout annotation environment\n"
168 "\\newenvironment{lyxgreyedout}\n"
169 " {\\textcolor{note_fontcolor}\\bgroup\\ignorespaces}\n"
170 " {\\ignorespacesafterend\\egroup}\n");
172 // We want to omit the file extension for includegraphics, but this does not
173 // work when the filename contains other dots.
174 // Idea from http://www.tex.ac.uk/cgi-bin/texfaq2html?label=unkgrfextn
175 static docstring const lyxdot_def = from_ascii(
176 "%% A simple dot to overcome graphicx limitations\n"
177 "\\newcommand{\\lyxdot}{.}\n");
179 static docstring const changetracking_dvipost_def = from_ascii(
180 "%% Change tracking with dvipost\n"
182 "\\dvipost{osstart color push Red}\n"
183 "\\dvipost{osend color pop}\n"
184 "\\dvipost{cbstart color push Blue}\n"
185 "\\dvipost{cbend color pop}\n"
186 "\\newcommand{\\lyxadded}[3]{\\changestart#3\\changeend}\n"
187 "\\newcommand{\\lyxdeleted}[3]{%\n"
188 "\\changestart\\overstrikeon#3\\overstrikeoff\\changeend}\n");
190 static docstring const changetracking_xcolor_ulem_def = from_ascii(
191 "%% Change tracking with ulem\n"
192 "\\newcommand{\\lyxadded}[3]{{\\color{lyxadded}{}#3}}\n"
193 "\\newcommand{\\lyxdeleted}[3]{{\\color{lyxdeleted}\\sout{#3}}}\n");
195 static docstring const changetracking_xcolor_ulem_hyperref_def = from_ascii(
196 "%% Change tracking with ulem\n"
197 "\\newcommand{\\lyxadded}[3]{{\\texorpdfstring{\\color{lyxadded}{}}{}#3}}\n"
198 "\\newcommand{\\lyxdeleted}[3]{{\\texorpdfstring{\\color{lyxdeleted}\\sout{#3}}{}}}\n");
200 static docstring const changetracking_none_def = from_ascii(
201 "\\newcommand{\\lyxadded}[3]{#3}\n"
202 "\\newcommand{\\lyxdeleted}[3]{}\n");
204 static docstring const textgreek_def = from_ascii(
205 "\\DeclareRobustCommand{\\greektext}{%\n"
206 " \\fontencoding{LGR}\\selectfont\\def\\encodingdefault{LGR}}\n"
207 "\\DeclareRobustCommand{\\textgreek}[1]{\\leavevmode{\\greektext #1}}\n"
208 "\\DeclareFontEncoding{LGR}{}{}\n"
209 "\\DeclareTextSymbol{\\~}{LGR}{126}");
211 static docstring const textcyr_def = from_ascii(
212 "\\DeclareRobustCommand{\\cyrtext}{%\n"
213 " \\fontencoding{T2A}\\selectfont\\def\\encodingdefault{T2A}}\n"
214 "\\DeclareRobustCommand{\\textcyr}[1]{\\leavevmode{\\cyrtext #1}}\n"
215 "\\AtBeginDocument{\\DeclareFontEncoding{T2A}{}{}}\n");
217 static docstring const lyxmathsym_def = from_ascii(
218 "\\newcommand{\\lyxmathsym}[1]{\\ifmmode\\begingroup\\def\\b@ld{bold}\n"
219 " \\text{\\ifx\\math@version\\b@ld\\bfseries\\fi#1}\\endgroup\\else#1\\fi}\n");
221 static docstring const papersizedvi_def = from_ascii(
222 "\\special{papersize=\\the\\paperwidth,\\the\\paperheight}\n");
224 static docstring const papersizepdf_def = from_ascii(
225 "\\pdfpageheight\\paperheight\n"
226 "\\pdfpagewidth\\paperwidth\n");
228 static docstring const cedilla_def = from_ascii(
229 "\\newcommand{\\docedilla}[2]{\\underaccent{#1\\mathchar'30}{#2}}\n"
230 "\\newcommand{\\cedilla}[1]{\\mathpalette\\docedilla{#1}}\n");
232 static docstring const subring_def = from_ascii(
233 "\\newcommand{\\dosubring}[2]{\\underaccent{#1\\mathchar'27}{#2}}\n"
234 "\\newcommand{\\subring}[1]{\\mathpalette\\dosubring{#1}}\n");
236 static docstring const subdot_def = from_ascii(
237 "\\newcommand{\\dosubdot}[2]{\\underaccent{#1.}{#2}}\n"
238 "\\newcommand{\\subdot}[1]{\\mathpalette\\dosubdot{#1}}\n");
240 static docstring const subhat_def = from_ascii(
241 "\\newcommand{\\dosubhat}[2]{\\underaccent{#1\\mathchar'136}{#2}}\n"
242 "\\newcommand{\\subhat}[1]{\\mathpalette\\dosubhat{#1}}\n");
244 static docstring const subtilde_def = from_ascii(
245 "\\newcommand{\\dosubtilde}[2]{\\underaccent{#1\\mathchar'176}{#2}}\n"
246 "\\newcommand{\\subtilde}[1]{\\mathpalette\\dosubtilde{#1}}\n");
248 static docstring const dacute_def = from_ascii(
249 "\\DeclareMathAccent{\\dacute}{\\mathalpha}{operators}{'175}\n");
251 static docstring const tipasymb_def = from_ascii(
252 "\\DeclareFontEncoding{T3}{}{}\n"
253 "\\DeclareSymbolFont{tipasymb}{T3}{cmr}{m}{n}\n");
255 static docstring const dgrave_def = from_ascii(
256 "\\DeclareMathAccent{\\dgrave}{\\mathord}{tipasymb}{'15}\n");
258 static docstring const rcap_def = from_ascii(
259 "\\DeclareMathAccent{\\rcap}{\\mathord}{tipasymb}{'20}\n");
261 static docstring const ogonek_def = from_ascii(
262 "\\newcommand{\\doogonek}[2]{\\setbox0=\\hbox{$#1#2$}\\underaccent{#1\\mkern-6mu\n"
263 " \\ifx#2O\\hskip0.5\\wd0\\else\\ifx#2U\\hskip0.5\\wd0\\else\\hskip\\wd0\\fi\\fi\n"
264 " \\ifx#2o\\mkern-2mu\\else\\ifx#2e\\mkern-1mu\\fi\\fi\n"
265 " \\mathchar\"0\\hexnumber@\\symtipasymb0C}{#2}}\n"
266 "\\newcommand{\\ogonek}[1]{\\mathpalette\\doogonek{#1}}\n");
268 static docstring const lyxref_def = from_ascii(
269 "\\RS@ifundefined{subref}\n"
270 " {\\def\\RSsubtxt{section~}\\newref{sub}{name = \\RSsubtxt}}\n"
272 "\\RS@ifundefined{thmref}\n"
273 " {\\def\\RSthmtxt{theorem~}\\newref{thm}{name = \\RSthmtxt}}\n"
275 "\\RS@ifundefined{lemref}\n"
276 " {\\def\\RSlemtxt{lemma~}\\newref{lem}{name = \\RSlemtxt}}\n"
280 /////////////////////////////////////////////////////////////////////
284 /////////////////////////////////////////////////////////////////////
287 LaTeXFeatures::LaTeXFeatures(Buffer const & b, BufferParams const & p,
288 OutputParams const & r)
289 : buffer_(&b), params_(p), runparams_(r), in_float_(false)
293 bool LaTeXFeatures::useBabel() const
295 if (usePolyglossia())
297 if (bufferParams().lang_package == "default")
298 return (lyxrc.language_package_selection != LyXRC::LP_NONE)
299 || (bufferParams().language->lang() != lyxrc.default_language
300 && !bufferParams().language->babel().empty())
301 || this->hasLanguages();
302 return (bufferParams().lang_package != "none")
303 || (bufferParams().language->lang() != lyxrc.default_language
304 && !bufferParams().language->babel().empty())
305 || this->hasLanguages();
309 bool LaTeXFeatures::usePolyglossia() const
311 if (bufferParams().lang_package == "default")
312 return (lyxrc.language_package_selection == LyXRC::LP_AUTO)
313 && isRequired("polyglossia")
314 && isAvailable("polyglossia")
315 && !params_.documentClass().provides("babel")
316 && this->hasOnlyPolyglossiaLanguages();
317 return (bufferParams().lang_package == "auto")
318 && isRequired("polyglossia")
319 && isAvailable("polyglossia")
320 && !params_.documentClass().provides("babel")
321 && this->hasOnlyPolyglossiaLanguages();
325 void LaTeXFeatures::require(string const & name)
327 features_.insert(name);
331 void LaTeXFeatures::require(set<string> const & names)
333 features_.insert(names.begin(), names.end());
337 void LaTeXFeatures::useLayout(docstring const & layoutname)
339 // Some code to avoid loops in dependency definition
340 static int level = 0;
341 const int maxlevel = 30;
342 if (level > maxlevel) {
343 lyxerr << "LaTeXFeatures::useLayout: maximum level of "
344 << "recursion attained by layout "
345 << to_utf8(layoutname) << endl;
349 DocumentClass const & tclass = params_.documentClass();
350 if (tclass.hasLayout(layoutname)) {
351 // Is this layout already in usedLayouts?
352 if (find(usedLayouts_.begin(), usedLayouts_.end(), layoutname)
353 != usedLayouts_.end())
356 Layout const & layout = tclass[layoutname];
357 require(layout.requires());
359 if (!layout.depends_on().empty()) {
361 useLayout(layout.depends_on());
364 usedLayouts_.push_back(layoutname);
366 lyxerr << "LaTeXFeatures::useLayout: layout `"
367 << to_utf8(layoutname) << "' does not exist in this class"
375 void LaTeXFeatures::useInsetLayout(InsetLayout const & lay)
377 docstring const & lname = lay.name();
378 DocumentClass const & tclass = params_.documentClass();
380 // this is a default inset layout, nothing useful here
381 if (!tclass.hasInsetLayout(lname))
383 // Is this layout already in usedInsetLayouts?
384 if (find(usedInsetLayouts_.begin(), usedInsetLayouts_.end(), lname)
385 != usedInsetLayouts_.end())
388 require(lay.requires());
389 usedInsetLayouts_.push_back(lname);
393 bool LaTeXFeatures::isRequired(string const & name) const
395 return features_.find(name) != features_.end();
399 bool LaTeXFeatures::mustProvide(string const & name) const
401 return isRequired(name) && !params_.documentClass().provides(name);
405 bool LaTeXFeatures::isAvailable(string const & name)
407 string::size_type const i = name.find("->");
408 if (i != string::npos) {
409 string const from = name.substr(0,i);
410 string const to = name.substr(i+2);
411 //LYXERR0("from=[" << from << "] to=[" << to << "]");
412 return theConverters().isReachable(from, to);
414 return LaTeXPackages::isAvailable(name);
418 void LaTeXFeatures::addPreambleSnippet(string const & preamble)
420 SnippetList::const_iterator begin = preamble_snippets_.begin();
421 SnippetList::const_iterator end = preamble_snippets_.end();
422 if (find(begin, end, preamble) == end)
423 preamble_snippets_.push_back(preamble);
427 void LaTeXFeatures::addCSSSnippet(std::string const & snippet)
429 SnippetList::const_iterator begin = css_snippets_.begin();
430 SnippetList::const_iterator end = css_snippets_.end();
431 if (find(begin, end, snippet) == end)
432 css_snippets_.push_back(snippet);
436 void LaTeXFeatures::useFloat(string const & name, bool subfloat)
438 if (!usedFloats_[name])
439 usedFloats_[name] = subfloat;
442 // We only need float.sty if we use non builtin floats, or if we
443 // use the "H" modifier. This includes modified table and
444 // figure floats. (Lgb)
445 Floating const & fl = params_.documentClass().floats().getType(name);
446 if (!fl.floattype().empty() && fl.usesFloatPkg()) {
452 void LaTeXFeatures::useLanguage(Language const * lang)
454 if (!lang->babel().empty())
455 UsedLanguages_.insert(lang);
456 if (lang->lang() == "vietnamese")
457 require("vietnamese");
458 // CJK languages do not have a babel name.
459 // They use the CJK package
460 if (lang->encoding()->package() == Encoding::CJK)
462 // japanese package is special
463 if (lang->encoding()->package() == Encoding::japanese)
468 void LaTeXFeatures::includeFile(docstring const & key, string const & name)
470 IncludedFiles_[key] = name;
474 bool LaTeXFeatures::hasLanguages() const
476 return !UsedLanguages_.empty();
480 bool LaTeXFeatures::hasOnlyPolyglossiaLanguages() const
482 LanguageList::const_iterator const begin = UsedLanguages_.begin();
483 for (LanguageList::const_iterator cit = begin;
484 cit != UsedLanguages_.end();
486 if ((*cit)->polyglossia().empty())
493 bool LaTeXFeatures::hasPolyglossiaExclusiveLanguages() const
495 LanguageList::const_iterator const begin = UsedLanguages_.begin();
496 for (LanguageList::const_iterator cit = begin;
497 cit != UsedLanguages_.end();
499 if ((*cit)->babel().empty() && !(*cit)->polyglossia().empty())
506 string LaTeXFeatures::getLanguages() const
508 ostringstream languages;
510 LanguageList::const_iterator const begin = UsedLanguages_.begin();
511 for (LanguageList::const_iterator cit = begin;
512 cit != UsedLanguages_.end();
516 languages << (*cit)->babel();
518 return languages.str();
522 std::map<std::string, std::string> LaTeXFeatures::getPolyglossiaLanguages() const
524 std::map<std::string, std::string> languages;
526 LanguageList::const_iterator const begin = UsedLanguages_.begin();
527 for (LanguageList::const_iterator cit = begin;
528 cit != UsedLanguages_.end();
530 languages[(*cit)->polyglossia()] = (*cit)->polyglossiaOpts();
536 set<string> LaTeXFeatures::getEncodingSet(string const & doc_encoding) const
538 // This does only find encodings of languages supported by babel, but
539 // that does not matter since we don't have a language with an
540 // encoding supported by inputenc but without babel support.
541 set<string> encodings;
542 LanguageList::const_iterator it = UsedLanguages_.begin();
543 LanguageList::const_iterator end = UsedLanguages_.end();
544 for (; it != end; ++it)
545 if ((*it)->encoding()->latexName() != doc_encoding &&
546 ((*it)->encoding()->package() == Encoding::inputenc
547 || (*it)->encoding()->package() == Encoding::japanese))
548 encodings.insert((*it)->encoding()->latexName());
554 char const * simplefeatures[] = {
555 // note that the package order here will be the same in the LaTeX-output
562 // subfig is handled in BufferParams.cpp
566 /*For a successful cooperation of the `wrapfig' package with the
567 `float' package you should load the `wrapfig' package *after*
568 the `float' package. See the caption package documentation
602 // listings is handled in BufferParams.cpp
611 int const nb_simplefeatures = sizeof(simplefeatures) / sizeof(char const *);
616 string const LaTeXFeatures::getColorOptions() const
618 ostringstream colors;
620 // Handling the color packages separately is needed to be able to load them
621 // before babel when hyperref is loaded with the colorlinks option
622 // for more info see Bufferparams.cpp
625 if (mustProvide("color") || mustProvide("xcolor")) {
626 string const package =
627 (mustProvide("xcolor") ? "xcolor" : "color");
628 if (params_.graphics_driver == "default"
629 || params_.graphics_driver == "none")
630 colors << "\\usepackage{" << package << "}\n";
632 colors << "\\usepackage["
633 << params_.graphics_driver
634 << "]{" << package << "}\n";
637 // pdfcolmk must be loaded after color
638 if (mustProvide("pdfcolmk"))
639 colors << "\\usepackage{pdfcolmk}\n";
641 // the following 3 color commands must be set after color
642 // is loaded and before pdfpages, therefore add the command
643 // here define the set color
644 if (mustProvide("pagecolor")) {
645 colors << "\\definecolor{page_backgroundcolor}{rgb}{";
646 colors << outputLaTeXColor(params_.backgroundcolor) << "}\n";
647 // set the page color
648 colors << "\\pagecolor{page_backgroundcolor}\n";
651 if (mustProvide("fontcolor")) {
652 colors << "\\definecolor{document_fontcolor}{rgb}{";
653 colors << outputLaTeXColor(params_.fontcolor) << "}\n";
655 colors << "\\color{document_fontcolor}\n";
658 if (mustProvide("lyxgreyedout")) {
659 colors << "\\definecolor{note_fontcolor}{rgb}{";
660 colors << outputLaTeXColor(params_.notefontcolor) << "}\n";
661 // the color will be set together with the definition of
662 // the lyxgreyedout environment (see lyxgreyedout_def)
665 // color for shaded boxes
666 if (isRequired("framed") && mustProvide("color")) {
667 colors << "\\definecolor{shadecolor}{rgb}{";
668 colors << outputLaTeXColor(params_.boxbgcolor) << "}\n";
669 // this color is automatically used by the LaTeX-package "framed"
676 string const LaTeXFeatures::getPackages() const
678 ostringstream packages;
679 DocumentClass const & tclass = params_.documentClass();
681 // FIXME: currently, we can only load packages and macros known
683 // However, with the Require tag of layouts/custom insets,
684 // also unknown packages can be requested. They are silently
685 // swallowed now. We should change this eventually.
688 // These are all the 'simple' includes. i.e
689 // packages which we just \usepackage{package}
691 for (int i = 0; i < nb_simplefeatures; ++i) {
692 if (mustProvide(simplefeatures[i]))
693 packages << "\\usepackage{"
694 << simplefeatures[i] << "}\n";
698 // The rest of these packages are somewhat more complicated
702 // if fontspec is used, AMS packages have to be loaded before
703 // fontspec (in BufferParams)
704 string const amsPackages = loadAMSPackages();
705 if (!params_.useNonTeXFonts && !amsPackages.empty())
706 packages << amsPackages;
708 // fixltx2e must be loaded after amsthm, since amsthm produces an error with
709 // the redefined \[ command (bug 7233). Load it as early as possible, since
710 // other packages might profit from it.
711 if (mustProvide("fixltx2e"))
712 packages << "\\usepackage{fixltx2e}\n";
714 // wasysym is a simple feature, but it must be after amsmath if both
716 // wasysym redefines some integrals (e.g. iint) from amsmath. That
717 // leads to inconsistent integrals. We only load this package if
718 // the document does not contain integrals (then isRequired("esint")
719 // is false) or if esint is used, since esint redefines all relevant
720 // integral symbols from wasysym and amsmath.
721 // See http://www.lyx.org/trac/ticket/1942
722 if (mustProvide("wasysym") &&
723 params_.use_package("wasysym") != BufferParams::package_off &&
724 (params_.use_package("esint") != BufferParams::package_off || !isRequired("esint")))
725 packages << "\\usepackage{wasysym}\n";
727 // accents must be loaded after amsmath
728 if (mustProvide("accents") &&
729 params_.use_package("accents") != BufferParams::package_off)
730 packages << "\\usepackage{accents}\n";
732 // mathdots must be loaded after amsmath
733 if (mustProvide("mathdots") &&
734 params_.use_package("mathdots") != BufferParams::package_off)
735 packages << "\\usepackage{mathdots}\n";
737 // yhmath must be loaded after amsmath
738 if (mustProvide("yhmath") &&
739 params_.use_package("yhmath") != BufferParams::package_off)
740 packages << "\\usepackage{yhmath}\n";
742 if (mustProvide("undertilde") &&
743 params_.use_package("undertilde") != BufferParams::package_off)
744 packages << "\\usepackage{undertilde}\n";
746 // [x]color and pdfcolmk are handled in getColorOptions() above
749 if (isRequired("makeidx") || isRequired("splitidx")) {
750 if (!tclass.provides("makeidx") && !isRequired("splitidx"))
751 packages << "\\usepackage{makeidx}\n";
752 if (!tclass.provides("splitidx") && isRequired("splitidx"))
753 packages << "\\usepackage{splitidx}\n";
754 packages << "\\makeindex\n";
758 if (mustProvide("graphicx") && params_.graphics_driver != "none") {
759 if (params_.graphics_driver == "default")
760 packages << "\\usepackage{graphicx}\n";
762 packages << "\\usepackage["
763 << params_.graphics_driver
767 // lyxskak.sty --- newer chess support based on skak.sty
768 if (mustProvide("chess"))
769 packages << "\\usepackage[ps,mover]{lyxskak}\n";
772 if (mustProvide("setspace") && !tclass.provides("SetSpace"))
773 packages << "\\usepackage{setspace}\n";
775 // esint must be after amsmath and wasysym, since it will redeclare
776 // inconsistent integral symbols
777 if (mustProvide("esint") &&
778 params_.use_package("esint") != BufferParams::package_off)
779 packages << "\\usepackage{esint}\n";
782 // Some classes load natbib themselves, but still allow (or even require)
783 // plain numeric citations (ReVTeX is such a case, see bug 5182).
784 // This special case is indicated by the "natbib-internal" key.
785 if (mustProvide("natbib") && !tclass.provides("natbib-internal")) {
786 packages << "\\usepackage[";
787 if (params_.citeEngineType() == ENGINE_TYPE_NUMERICAL)
788 packages << "numbers";
790 packages << "authoryear";
791 packages << "]{natbib}\n";
794 // jurabib -- we need version 0.6 at least.
795 if (mustProvide("jurabib"))
796 packages << "\\usepackage{jurabib}[2004/01/25]\n";
798 // xargs -- we need version 1.09 at least
799 if (mustProvide("xargs"))
800 packages << "\\usepackage{xargs}[2008/03/08]\n";
802 if (mustProvide("xy"))
803 packages << "\\usepackage[all]{xy}\n";
805 if (mustProvide("feyn"))
806 packages << "\\usepackage{feyn}\n"; //Diagram
808 if (mustProvide("ulem"))
809 packages << "\\PassOptionsToPackage{normalem}{ulem}\n"
810 "\\usepackage{ulem}\n";
812 if (mustProvide("mhchem") &&
813 params_.use_package("mhchem") != BufferParams::package_off)
814 packages << "\\PassOptionsToPackage{version=3}{mhchem}\n"
815 "\\usepackage{mhchem}\n";
817 if (mustProvide("nomencl")) {
818 // Make it work with the new and old version of the package,
819 // but don't use the compatibility option since it is
820 // incompatible to other packages.
821 packages << "\\usepackage{nomencl}\n"
822 "% the following is useful when we have the old nomencl.sty package\n"
823 "\\providecommand{\\printnomenclature}{\\printglossary}\n"
824 "\\providecommand{\\makenomenclature}{\\makeglossary}\n"
825 "\\makenomenclature\n";
828 // fixltx2e provides subscript
829 if (mustProvide("subscript") && !isRequired("fixltx2e"))
830 packages << "\\usepackage{subscript}\n";
832 return packages.str();
836 string LaTeXFeatures::getPreambleSnippets() const
839 SnippetList::const_iterator pit = preamble_snippets_.begin();
840 SnippetList::const_iterator pend = preamble_snippets_.end();
841 for (; pit != pend; ++pit)
842 snip << *pit << '\n';
847 std::string LaTeXFeatures::getCSSSnippets() const
850 SnippetList::const_iterator pit = css_snippets_.begin();
851 SnippetList::const_iterator pend = css_snippets_.end();
852 for (; pit != pend; ++pit)
853 snip << *pit << '\n';
858 docstring const LaTeXFeatures::getMacros() const
860 odocstringstream macros;
862 if (!preamble_snippets_.empty()) {
864 macros << from_utf8(getPreambleSnippets());
867 if (mustProvide("papersize")) {
868 if (runparams_.flavor == OutputParams::LATEX)
869 macros << papersizedvi_def << '\n';
871 macros << papersizepdf_def << '\n';
874 if (mustProvide("LyX")) {
875 if (isRequired("hyperref"))
876 macros << lyx_hyperref_def << '\n';
878 macros << lyx_def << '\n';
881 if (mustProvide("noun"))
882 macros << noun_def << '\n';
884 if (mustProvide("lyxarrow"))
885 macros << lyxarrow_def << '\n';
887 if (!usePolyglossia() && mustProvide("textgreek")) {
888 // Avoid a LaTeX error if times fonts are used and the grtimes
889 // package is installed but actual fonts are not (bug 6469).
890 if (params_.fonts_roman == "times")
891 macros << subst(textgreek_def,
892 from_ascii("\\greektext #1"),
893 from_ascii("%\n \\IfFileExists"
894 "{grtm10.tfm}{}{\\fontfamily"
895 "{cmr}}\\greektext #1"))
898 macros << textgreek_def << '\n';
901 if (!usePolyglossia() && mustProvide("textcyr"))
902 macros << textcyr_def << '\n';
904 if (mustProvide("lyxmathsym"))
905 macros << lyxmathsym_def << '\n';
907 if (mustProvide("cedilla"))
908 macros << cedilla_def << '\n';
910 if (mustProvide("subring"))
911 macros << subring_def << '\n';
913 if (mustProvide("subdot"))
914 macros << subdot_def << '\n';
916 if (mustProvide("subhat"))
917 macros << subhat_def << '\n';
919 if (mustProvide("subtilde"))
920 macros << subtilde_def << '\n';
922 if (mustProvide("dacute"))
923 macros << dacute_def << '\n';
925 if (mustProvide("tipasymb"))
926 macros << tipasymb_def << '\n';
928 if (mustProvide("dgrave"))
929 macros << dgrave_def << '\n';
931 if (mustProvide("rcap"))
932 macros << rcap_def << '\n';
934 if (mustProvide("ogonek"))
935 macros << ogonek_def << '\n';
938 if (mustProvide("quotesinglbase"))
939 macros << quotesinglbase_def << '\n';
940 if (mustProvide("quotedblbase"))
941 macros << quotedblbase_def << '\n';
942 if (mustProvide("guilsinglleft"))
943 macros << guilsinglleft_def << '\n';
944 if (mustProvide("guilsinglright"))
945 macros << guilsinglright_def << '\n';
946 if (mustProvide("guillemotleft"))
947 macros << guillemotleft_def << '\n';
948 if (mustProvide("guillemotright"))
949 macros << guillemotright_def << '\n';
952 if (mustProvide("binom") && !isRequired("amsmath"))
953 macros << binom_def << '\n';
954 if (mustProvide("mathcircumflex"))
955 macros << mathcircumflex_def << '\n';
958 if (mustProvide("ParagraphLeftIndent"))
959 macros << paragraphleftindent_def;
960 if (mustProvide("NeedLyXFootnoteCode"))
961 macros << floatingfootnote_def;
963 // some problems with tex->html converters
964 if (mustProvide("NeedTabularnewline"))
965 macros << tabularnewline_def;
967 // greyed-out environment (note inset)
968 // the color is specified in the routine
969 // getColorOptions() to avoid LaTeX-package clashes
970 if (mustProvide("lyxgreyedout"))
971 macros << lyxgreyedout_def;
973 if (mustProvide("lyxdot"))
974 macros << lyxdot_def << '\n';
977 getFloatDefinitions(macros);
979 if (mustProvide("refstyle"))
980 macros << lyxref_def << '\n';
983 if (mustProvide("ct-dvipost"))
984 macros << changetracking_dvipost_def;
986 if (mustProvide("ct-xcolor-ulem")) {
987 streamsize const prec = macros.precision(2);
989 RGBColor cadd = rgbFromHexName(lcolor.getX11Name(Color_addedtext));
990 macros << "\\providecolor{lyxadded}{rgb}{"
991 << cadd.r / 255.0 << ',' << cadd.g / 255.0 << ',' << cadd.b / 255.0 << "}\n";
993 RGBColor cdel = rgbFromHexName(lcolor.getX11Name(Color_deletedtext));
994 macros << "\\providecolor{lyxdeleted}{rgb}{"
995 << cdel.r / 255.0 << ',' << cdel.g / 255.0 << ',' << cdel.b / 255.0 << "}\n";
997 macros.precision(prec);
999 if (isRequired("hyperref"))
1000 macros << changetracking_xcolor_ulem_hyperref_def;
1002 macros << changetracking_xcolor_ulem_def;
1005 if (mustProvide("ct-none"))
1006 macros << changetracking_none_def;
1008 return macros.str();
1012 string const LaTeXFeatures::getBabelPresettings() const
1016 LanguageList::const_iterator it = UsedLanguages_.begin();
1017 LanguageList::const_iterator end = UsedLanguages_.end();
1018 for (; it != end; ++it)
1019 if (!(*it)->babel_presettings().empty())
1020 tmp << (*it)->babel_presettings() << '\n';
1021 if (!params_.language->babel_presettings().empty())
1022 tmp << params_.language->babel_presettings() << '\n';
1028 string const LaTeXFeatures::getBabelPostsettings() const
1032 LanguageList::const_iterator it = UsedLanguages_.begin();
1033 LanguageList::const_iterator end = UsedLanguages_.end();
1034 for (; it != end; ++it)
1035 if (!(*it)->babel_postsettings().empty())
1036 tmp << (*it)->babel_postsettings() << '\n';
1037 if (!params_.language->babel_postsettings().empty())
1038 tmp << params_.language->babel_postsettings() << '\n';
1044 bool LaTeXFeatures::needBabelLangOptions() const
1046 if (!lyxrc.language_global_options || params_.language->asBabelOptions())
1049 LanguageList::const_iterator it = UsedLanguages_.begin();
1050 LanguageList::const_iterator end = UsedLanguages_.end();
1051 for (; it != end; ++it)
1052 if ((*it)->asBabelOptions())
1059 string const LaTeXFeatures::loadAMSPackages() const
1062 if (mustProvide("amsthm"))
1063 tmp << "\\usepackage{amsthm}\n";
1065 if (mustProvide("amsmath")
1066 && params_.use_package("amsmath") != BufferParams::package_off) {
1067 tmp << "\\usepackage{amsmath}\n";
1069 // amsbsy and amstext are already provided by amsmath
1070 if (mustProvide("amsbsy"))
1071 tmp << "\\usepackage{amsbsy}\n";
1072 if (mustProvide("amstext"))
1073 tmp << "\\usepackage{amstext}\n";
1076 if (mustProvide("amssymb")
1077 && params_.use_package("amssymb") != BufferParams::package_off)
1078 tmp << "\\usepackage{amssymb}\n";
1084 docstring const LaTeXFeatures::getTClassPreamble() const
1086 // the text class specific preamble
1087 DocumentClass const & tclass = params_.documentClass();
1088 odocstringstream tcpreamble;
1090 tcpreamble << tclass.preamble();
1092 list<docstring>::const_iterator cit = usedLayouts_.begin();
1093 list<docstring>::const_iterator end = usedLayouts_.end();
1094 for (; cit != end; ++cit)
1095 tcpreamble << tclass[*cit].preamble();
1097 cit = usedInsetLayouts_.begin();
1098 end = usedInsetLayouts_.end();
1099 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1100 for (; cit != end; ++cit) {
1101 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1102 if (it == ils.end())
1104 tcpreamble << it->second.preamble();
1107 return tcpreamble.str();
1111 docstring const LaTeXFeatures::getTClassHTMLPreamble() const
1113 DocumentClass const & tclass = params_.documentClass();
1114 odocstringstream tcpreamble;
1116 tcpreamble << tclass.htmlpreamble();
1118 list<docstring>::const_iterator cit = usedLayouts_.begin();
1119 list<docstring>::const_iterator end = usedLayouts_.end();
1120 for (; cit != end; ++cit)
1121 tcpreamble << tclass[*cit].htmlpreamble();
1123 cit = usedInsetLayouts_.begin();
1124 end = usedInsetLayouts_.end();
1125 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1126 for (; cit != end; ++cit) {
1127 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1128 if (it == ils.end())
1130 tcpreamble << it->second.htmlpreamble();
1133 return tcpreamble.str();
1137 docstring const LaTeXFeatures::getTClassHTMLStyles() const
1139 DocumentClass const & tclass = params_.documentClass();
1140 odocstringstream tcpreamble;
1142 tcpreamble << tclass.htmlstyles();
1144 list<docstring>::const_iterator cit = usedLayouts_.begin();
1145 list<docstring>::const_iterator end = usedLayouts_.end();
1146 for (; cit != end; ++cit)
1147 tcpreamble << tclass[*cit].htmlstyle();
1149 cit = usedInsetLayouts_.begin();
1150 end = usedInsetLayouts_.end();
1151 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1152 for (; cit != end; ++cit) {
1153 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1154 if (it == ils.end())
1156 tcpreamble << it->second.htmlstyle();
1159 return tcpreamble.str();
1164 docstring const getFloatI18nPreamble(docstring const & type,
1165 docstring const & name, Language const * lang,
1166 Encoding const & enc, bool const polyglossia)
1168 // Check whether name can be encoded in the buffer encoding
1169 bool encodable = true;
1170 for (size_t i = 0; i < name.size(); ++i) {
1171 if (!enc.encodable(name[i])) {
1177 docstring const language = polyglossia ? from_ascii(lang->polyglossia())
1178 : from_ascii(lang->babel());
1179 docstring const langenc = from_ascii(lang->encoding()->iconvName());
1180 docstring const texenc = from_ascii(lang->encoding()->latexName());
1181 docstring const bufenc = from_ascii(enc.iconvName());
1182 docstring const s1 = docstring(1, 0xF0000);
1183 docstring const s2 = docstring(1, 0xF0001);
1184 docstring const translated = encodable ? name
1185 : from_ascii("\\inputencoding{") + texenc + from_ascii("}")
1186 + s1 + langenc + s2 + name + s1 + bufenc + s2;
1188 odocstringstream os;
1189 os << "\\addto\\captions" << language
1190 << "{\\renewcommand{\\" << type << "name}{" << translated << "}}\n";
1195 docstring const i18npreamble(docstring const & templ, Language const * lang,
1196 Encoding const & enc, bool const polyglossia)
1201 string preamble = polyglossia ?
1202 subst(to_utf8(templ), "$$lang", lang->polyglossia()) :
1203 subst(to_utf8(templ), "$$lang", lang->babel());
1205 string const langenc = lang->encoding()->iconvName();
1206 string const texenc = lang->encoding()->latexName();
1207 string const bufenc = enc.iconvName();
1208 // First and second character of plane 15 (Private Use Area)
1209 string const s1 = "\xf3\xb0\x80\x80"; // U+F0000
1210 string const s2 = "\xf3\xb0\x80\x81"; // U+F0001
1212 // lyx::regex is not unicode-safe.
1213 // Should use QRegExp or (boost::u32regex, but that requires ICU)
1214 static regex const reg("_\\(([^\\)]+)\\)");
1216 while (regex_search(preamble, sub, reg)) {
1217 string const key = sub.str(1);
1218 docstring const name = lang->translateLayout(key);
1219 // Check whether name can be encoded in the buffer encoding
1220 bool encodable = true;
1221 for (size_t i = 0; i < name.size(); ++i) {
1222 if (!enc.encodable(name[i])) {
1227 string const translated = encodable ? to_utf8(name)
1228 : "\\inputencoding{" + texenc + "}"
1229 + s1 + langenc + s2 + to_utf8(name)
1231 preamble = subst(preamble, sub.str(), translated);
1233 return from_utf8(preamble);
1239 docstring const LaTeXFeatures::getTClassI18nPreamble(bool use_babel, bool use_polyglossia) const
1241 DocumentClass const & tclass = params_.documentClass();
1242 // collect preamble snippets in a set to prevent multiple identical
1243 // commands (would happen if e.g. both theorem and theorem* are used)
1244 set<docstring> snippets;
1245 typedef LanguageList::const_iterator lang_it;
1246 lang_it const lbeg = UsedLanguages_.begin();
1247 lang_it const lend = UsedLanguages_.end();
1248 list<docstring>::const_iterator cit = usedLayouts_.begin();
1249 list<docstring>::const_iterator end = usedLayouts_.end();
1250 for (; cit != end; ++cit) {
1251 // language dependent commands (once per document)
1252 snippets.insert(i18npreamble(tclass[*cit].langpreamble(),
1253 buffer().language(),
1254 buffer().params().encoding(),
1256 // commands for language changing (for multilanguage documents)
1257 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1258 snippets.insert(i18npreamble(
1259 tclass[*cit].babelpreamble(),
1260 buffer().language(),
1261 buffer().params().encoding(),
1263 for (lang_it lit = lbeg; lit != lend; ++lit)
1264 snippets.insert(i18npreamble(
1265 tclass[*cit].babelpreamble(),
1267 buffer().params().encoding(),
1271 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1272 FloatList const & floats = params_.documentClass().floats();
1273 UsedFloats::const_iterator fit = usedFloats_.begin();
1274 UsedFloats::const_iterator fend = usedFloats_.end();
1275 for (; fit != fend; ++fit) {
1276 Floating const & fl = floats.getType(fit->first);
1277 // we assume builtin floats are translated
1278 if (fl.isPredefined())
1280 docstring const type = from_ascii(fl.floattype());
1281 docstring const flname = from_utf8(fl.name());
1282 docstring name = buffer().language()->translateLayout(fl.name());
1283 // only request translation if we have a real translation
1284 // (that differs from the source)
1286 snippets.insert(getFloatI18nPreamble(
1287 type, name, buffer().language(),
1288 buffer().params().encoding(),
1290 for (lang_it lit = lbeg; lit != lend; ++lit) {
1291 string const code = (*lit)->code();
1292 name = (*lit)->translateLayout(fl.name());
1293 // we assume we have a suitable translation if
1294 // either the language is English (we need to
1295 // translate into English if English is a secondary
1296 // language) or if translateIfPossible returns
1297 // something different to the English source.
1298 bool const have_translation =
1299 (flname != name || contains(code, "en"));
1300 if (have_translation)
1301 snippets.insert(getFloatI18nPreamble(
1303 buffer().params().encoding(),
1309 cit = usedInsetLayouts_.begin();
1310 end = usedInsetLayouts_.end();
1311 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1312 for (; cit != end; ++cit) {
1313 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1314 if (it == ils.end())
1316 // language dependent commands (once per document)
1317 snippets.insert(i18npreamble(it->second.langpreamble(),
1318 buffer().language(),
1319 buffer().params().encoding(),
1321 // commands for language changing (for multilanguage documents)
1322 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1323 snippets.insert(i18npreamble(
1324 it->second.babelpreamble(),
1325 buffer().language(),
1326 buffer().params().encoding(),
1328 for (lang_it lit = lbeg; lit != lend; ++lit)
1329 snippets.insert(i18npreamble(
1330 it->second.babelpreamble(),
1332 buffer().params().encoding(),
1337 odocstringstream tcpreamble;
1338 set<docstring>::const_iterator const send = snippets.end();
1339 set<docstring>::const_iterator it = snippets.begin();
1340 for (; it != send; ++it)
1342 return tcpreamble.str();
1346 docstring const LaTeXFeatures::getLyXSGMLEntities() const
1348 // Definition of entities used in the document that are LyX related.
1349 odocstringstream entities;
1351 if (mustProvide("lyxarrow")) {
1352 entities << "<!ENTITY lyxarrow \"->\">" << '\n';
1355 return entities.str();
1359 docstring const LaTeXFeatures::getIncludedFiles(string const & fname) const
1361 odocstringstream sgmlpreamble;
1363 docstring const basename(from_utf8(onlyPath(fname)));
1365 FileMap::const_iterator end = IncludedFiles_.end();
1366 for (FileMap::const_iterator fi = IncludedFiles_.begin();
1369 sgmlpreamble << "\n<!ENTITY " << fi->first
1370 << (isSGMLFileName(fi->second) ? " SYSTEM \"" : " \"")
1371 << makeRelPath(from_utf8(fi->second), basename) << "\">";
1373 return sgmlpreamble.str();
1377 void LaTeXFeatures::showStruct() const
1379 lyxerr << "LyX needs the following commands when LaTeXing:"
1380 << "\n***** Packages:" << getPackages()
1381 << "\n***** Macros:" << to_utf8(getMacros())
1382 << "\n***** Textclass stuff:" << to_utf8(getTClassPreamble())
1383 << "\n***** done." << endl;
1387 Buffer const & LaTeXFeatures::buffer() const
1393 void LaTeXFeatures::setBuffer(Buffer const & buffer)
1399 BufferParams const & LaTeXFeatures::bufferParams() const
1405 void LaTeXFeatures::getFloatDefinitions(odocstream & os) const
1407 FloatList const & floats = params_.documentClass().floats();
1409 // Here we will output the code to create the needed float styles.
1410 // We will try to do this as minimal as possible.
1411 // \floatstyle{ruled}
1412 // \newfloat{algorithm}{htbp}{loa}
1413 // \providecommand{\algorithmname}{Algorithm}
1414 // \floatname{algorithm}{\protect\algorithmname}
1415 UsedFloats::const_iterator cit = usedFloats_.begin();
1416 UsedFloats::const_iterator end = usedFloats_.end();
1417 for (; cit != end; ++cit) {
1418 Floating const & fl = floats.getType(cit->first);
1420 // For builtin floats we do nothing.
1421 if (fl.isPredefined())
1424 // We have to special case "table" and "figure"
1425 if (fl.floattype() == "tabular" || fl.floattype() == "figure") {
1426 // Output code to modify "table" or "figure"
1427 // but only if builtin == false
1428 // and that have to be true at this point in the
1430 docstring const type = from_ascii(fl.floattype());
1431 docstring const placement = from_ascii(fl.placement());
1432 docstring const style = from_ascii(fl.style());
1433 if (!style.empty()) {
1434 os << "\\floatstyle{" << style << "}\n"
1435 << "\\restylefloat{" << type << "}\n";
1437 if (!placement.empty()) {
1438 os << "\\floatplacement{" << type << "}{"
1439 << placement << "}\n";
1442 // The other non builtin floats.
1444 docstring const type = from_ascii(fl.floattype());
1445 docstring const placement = from_ascii(fl.placement());
1446 docstring const ext = from_ascii(fl.ext());
1447 docstring const within = from_ascii(fl.within());
1448 docstring const style = from_ascii(fl.style());
1449 docstring const name =
1450 buffer().language()->translateLayout(fl.name());
1451 os << "\\floatstyle{" << style << "}\n"
1452 << "\\newfloat{" << type << "}{" << placement
1453 << "}{" << ext << '}';
1454 if (!within.empty())
1455 os << '[' << within << ']';
1457 << "\\providecommand{\\" << type << "name}{"
1459 << "\\floatname{" << type << "}{\\protect\\"
1460 << type << "name}\n";
1462 // What missing here is to code to minimalize the code
1463 // output so that the same floatstyle will not be
1464 // used several times, when the same style is still in
1468 os << "\n\\newsubfloat{" << from_ascii(fl.floattype()) << "}\n";
1473 void LaTeXFeatures::resolveAlternatives()
1475 for (Features::iterator it = features_.begin(); it != features_.end();) {
1476 if (contains(*it, '|')) {
1477 vector<string> const alternatives = getVectorFromString(*it, "|");
1478 vector<string>::const_iterator const end = alternatives.end();
1479 vector<string>::const_iterator ita = alternatives.begin();
1480 for (; ita != end; ++ita) {
1481 if (isRequired(*ita))
1485 require(alternatives.front());
1486 features_.erase(it);
1487 it = features_.begin();