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 "LaTeXFonts.h"
28 #include "LaTeXPackages.h"
32 #include "TextClass.h"
34 #include "texstream.h"
36 #include "insets/InsetLayout.h"
38 #include "support/debug.h"
39 #include "support/docstream.h"
40 #include "support/FileName.h"
41 #include "support/filetools.h"
42 #include "support/gettext.h"
43 #include "support/lstrings.h"
44 #include "support/regex.h"
50 using namespace lyx::support;
55 /////////////////////////////////////////////////////////////////////
59 /////////////////////////////////////////////////////////////////////
61 //\NeedsTeXFormat{LaTeX2e}
62 //\ProvidesPackage{lyx}[1996/01/11 LLE v0.2 (LyX LaTeX Extensions)]
63 //\message{LyX LaTeX Extensions (LLE v0.2) of 11-Jan-1996.}
65 static docstring const lyx_def = from_ascii(
66 "\\providecommand{\\LyX}{L\\kern-.1667em\\lower.25em\\hbox{Y}\\kern-.125emX\\@}");
68 static docstring const lyx_rtl_def = from_ascii(
70 "\\def\\LyX{\\@ensure@LTR{\\@@LyX}}");
72 static docstring const lyx_hyperref_def = from_ascii(
73 "\\providecommand{\\LyX}{\\texorpdfstring%\n"
74 " {L\\kern-.1667em\\lower.25em\\hbox{Y}\\kern-.125emX\\@}\n"
77 static docstring const noun_def = from_ascii(
78 "\\newcommand{\\noun}[1]{\\textsc{#1}}");
80 static docstring const lyxarrow_def = from_ascii(
81 "\\DeclareRobustCommand*{\\lyxarrow}{%\n"
83 "{\\leavevmode\\,$\\triangleleft$\\,\\allowbreak}\n"
84 "{\\leavevmode\\,$\\triangleright$\\,\\allowbreak}}");
86 // ZERO WIDTH SPACE (ZWSP) is actually not a space character
87 // but marks a line break opportunity. Several commands provide a
88 // line break opportunity. They differ in side-effects:
89 // \allowbreak prevents hyphenation after hyphen or dash + ZWSP
90 // \linebreak[<n>] takes an optional argument denoting "urgency".
91 // The \LyXZeroWidthSpace wrapper allows customization in the preamble.
92 static docstring const lyxZWSP_def = from_ascii(
93 "\\newcommand*\\LyXZeroWidthSpace{\\hspace{0pt}}");
95 // for quotes without babel. This does not give perfect results, but
96 // anybody serious about non-english quotes should use babel (JMarc).
98 static docstring const quotedblbase_def = from_ascii(
99 "\\ProvideTextCommandDefault{\\quotedblbase}{%\n"
100 " \\raisebox{-1.4ex}[1ex][.5ex]{\\textquotedblright}%\n"
101 " \\penalty10000\\hskip0em\\relax%\n"
104 static docstring const quotesinglbase_def = from_ascii(
105 "\\ProvideTextCommandDefault{\\quotesinglbase}{%\n"
106 " \\raisebox{-1.4ex}[1ex][.5ex]{\\textquoteright}%\n"
107 " \\penalty10000\\hskip0em\\relax%\n"
110 static docstring const guillemotleft_def = from_ascii(
111 "\\ProvideTextCommandDefault{\\guillemotleft}{%\n"
112 " {\\usefont{U}{lasy}{m}{n}\\char'50\\kern-.15em\\char'50}%\n"
113 "\\penalty10000\\hskip0pt\\relax%\n"
116 static docstring const guillemotright_def = from_ascii(
117 "\\ProvideTextCommandDefault{\\guillemotright}{%\n"
118 " \\penalty10000\\hskip0pt%\n"
119 " {\\usefont{U}{lasy}{m}{n}\\char'51\\kern-.15em\\char'51}%\n"
122 static docstring const guilsinglleft_def = from_ascii(
123 "\\ProvideTextCommandDefault{\\guilsinglleft}{%\n"
124 " {\\usefont{U}{lasy}{m}{n}\\char'50}%\n"
125 " \\penalty10000\\hskip0pt\\relax%\n"
128 static docstring const guilsinglright_def = from_ascii(
129 "\\ProvideTextCommandDefault{\\guilsinglright}{%\n"
130 " \\penalty10000\\hskip0pt%\n"
131 " {\\usefont{U}{lasy}{m}{n}\\char'51}%\n"
134 static docstring const textquotedbl_def = from_ascii(
135 "\\DeclareTextSymbolDefault{\\textquotedbl}{T1}");
137 static docstring const textquotedblp_xetex_def = from_ascii(
138 "\\providecommand\\textquotedblplain{%\n"
139 " \\bgroup\\addfontfeatures{Mapping=}\\char34\\egroup}");
141 static docstring const textquotedblp_luatex_def = from_ascii(
142 "\\providecommand\\textquotedblplain{%\n"
143 " \\bgroup\\addfontfeatures{RawFeature=-tlig}\\char34\\egroup}");
145 static docstring const textquotesinglep_xetex_def = from_ascii(
146 "\\providecommand\\textquotesingleplain{%\n"
147 " \\bgroup\\addfontfeatures{Mapping=}\\char39\\egroup}");
149 static docstring const textquotesinglep_luatex_def = from_ascii(
150 "\\providecommand\\textquotesingleplain{%\n"
151 " \\bgroup\\addfontfeatures{RawFeature=-tlig}\\char39\\egroup}");
153 static docstring const paragraphleftindent_def = from_ascii(
154 "\\newenvironment{LyXParagraphLeftIndent}[1]%\n"
156 " \\begin{list}{}{%\n"
157 " \\setlength{\\topsep}{0pt}%\n"
158 " \\addtolength{\\leftmargin}{#1}\n"
159 // ho hum, yet more things commented out with no hint as to why they
160 // weren't just removed
161 // "%% \\addtolength{\\leftmargin}{#1\\textwidth}\n"
162 // "%% \\setlength{\\textwidth}{#2\\textwidth}\n"
163 // "%% \\setlength\\listparindent\\parindent%\n"
164 // "%% \\setlength\\itemindent\\parindent%\n"
165 " \\setlength{\\parsep}{0pt plus 1pt}%\n"
171 static docstring const floatingfootnote_def = from_ascii(
172 "%% Special footnote code from the package 'stblftnt.sty'\n"
173 "%% Author: Robin Fairbairns -- Last revised Dec 13 1996\n"
174 "\\let\\SF@@footnote\\footnote\n"
175 "\\def\\footnote{\\ifx\\protect\\@typeset@protect\n"
176 " \\expandafter\\SF@@footnote\n"
178 " \\expandafter\\SF@gobble@opt\n"
181 "\\expandafter\\def\\csname SF@gobble@opt \\endcsname{\\@ifnextchar[%]\n"
182 " \\SF@gobble@twobracket\n"
185 "\\edef\\SF@gobble@opt{\\noexpand\\protect\n"
186 " \\expandafter\\noexpand\\csname SF@gobble@opt \\endcsname}\n"
187 "\\def\\SF@gobble@twobracket[#1]#2{}\n");
189 static docstring const binom_def = from_ascii(
190 "%% Binom macro for standard LaTeX users\n"
191 "\\newcommand{\\binom}[2]{{#1 \\choose #2}}\n");
193 static docstring const mathcircumflex_def = from_ascii(
194 "%% For printing a cirumflex inside a formula\n"
195 "\\newcommand{\\mathcircumflex}[0]{\\mbox{\\^{}}}\n");
197 static docstring const tabularnewline_def = from_ascii(
198 "%% Because html converters don't know tabularnewline\n"
199 "\\providecommand{\\tabularnewline}{\\\\}\n");
201 static docstring const lyxgreyedout_def = from_ascii(
202 "%% The greyedout annotation environment\n"
203 "\\newenvironment{lyxgreyedout}\n"
204 " {\\textcolor{note_fontcolor}\\bgroup\\ignorespaces}\n"
205 " {\\ignorespacesafterend\\egroup}\n");
207 // We want to omit the file extension for includegraphics, but this does not
208 // work when the filename contains other dots.
209 // Idea from http://www.tex.ac.uk/cgi-bin/texfaq2html?label=unkgrfextn
210 static docstring const lyxdot_def = from_ascii(
211 "%% A simple dot to overcome graphicx limitations\n"
212 "\\newcommand{\\lyxdot}{.}\n");
214 static docstring const changetracking_dvipost_def = from_ascii(
215 "%% Change tracking with dvipost\n"
217 "\\dvipost{osstart color push Red}\n"
218 "\\dvipost{osend color pop}\n"
219 "\\dvipost{cbstart color push Blue}\n"
220 "\\dvipost{cbend color pop}\n"
221 "\\DeclareRobustCommand{\\lyxadded}[3]{\\changestart#3\\changeend}\n"
222 "\\DeclareRobustCommand{\\lyxdeleted}[3]{%\n"
223 "\\changestart\\overstrikeon#3\\overstrikeoff\\changeend}\n");
225 static docstring const changetracking_xcolor_ulem_def = from_ascii(
226 "%% Change tracking with ulem\n"
227 "\\DeclareRobustCommand{\\lyxadded}[3]{{\\color{lyxadded}{}#3}}\n"
228 "\\DeclareRobustCommand{\\lyxdeleted}[3]{{\\color{lyxdeleted}\\lyxsout{#3}}}\n"
229 "\\DeclareRobustCommand{\\lyxsout}[1]{\\ifx\\\\#1\\else\\sout{#1}\\fi}\n");
231 static docstring const changetracking_xcolor_ulem_hyperref_def = from_ascii(
232 "%% Change tracking with ulem\n"
233 "\\DeclareRobustCommand{\\lyxadded}[3]{{\\texorpdfstring{\\color{lyxadded}{}}{}#3}}\n"
234 "\\DeclareRobustCommand{\\lyxdeleted}[3]{{\\texorpdfstring{\\color{lyxdeleted}\\lyxsout{#3}}{}}}\n"
235 "\\DeclareRobustCommand{\\lyxsout}[1]{\\ifx\\\\#1\\else\\sout{#1}\\fi}\n");
237 static docstring const changetracking_tikz_math_sout_def = from_ascii(
238 "%% Strike out display math with tikz\n"
239 "\\usepackage{tikz}\n"
240 "\\usetikzlibrary{calc}\n"
241 "\\newcommand{\\lyxmathsout}[1]{%\n"
242 " \\tikz[baseline=(math.base)]{\n"
243 " \\node[inner sep=0pt,outer sep=0pt](math){#1};\n"
244 " \\draw($(math.south west)+(2em,.5em)$)--($(math.north east)-(2em,.5em)$);\n"
248 static docstring const changetracking_none_def = from_ascii(
249 "\\newcommand{\\lyxadded}[3]{#3}\n"
250 "\\newcommand{\\lyxdeleted}[3]{}\n");
252 static docstring const textgreek_LGR_def = from_ascii(
253 "\\DeclareFontEncoding{LGR}{}{}\n");
254 static docstring const textgreek_def = from_ascii(
255 "\\DeclareRobustCommand{\\greektext}{%\n"
256 " \\fontencoding{LGR}\\selectfont\\def\\encodingdefault{LGR}}\n"
257 "\\DeclareRobustCommand{\\textgreek}[1]{\\leavevmode{\\greektext #1}}\n");
259 static docstring const textcyr_T2A_def = from_ascii(
260 "\\InputIfFileExists{t2aenc.def}{}{%\n"
261 " \\errmessage{File `t2aenc.def' not found: Cyrillic script not supported}}\n");
262 static docstring const textcyr_def = from_ascii(
263 "\\DeclareRobustCommand{\\cyrtext}{%\n"
264 " \\fontencoding{T2A}\\selectfont\\def\\encodingdefault{T2A}}\n"
265 "\\DeclareRobustCommand{\\textcyrillic}[1]{\\leavevmode{\\cyrtext #1}}\n");
267 static docstring const lyxmathsym_def = from_ascii(
268 "\\newcommand{\\lyxmathsym}[1]{\\ifmmode\\begingroup\\def\\b@ld{bold}\n"
269 " \\text{\\ifx\\math@version\\b@ld\\bfseries\\fi#1}\\endgroup\\else#1\\fi}\n");
271 static docstring const papersizedvi_def = from_ascii(
272 "\\special{papersize=\\the\\paperwidth,\\the\\paperheight}\n");
274 static docstring const papersizepdf_def = from_ascii(
275 "\\pdfpageheight\\paperheight\n"
276 "\\pdfpagewidth\\paperwidth\n");
278 static docstring const papersizepdflua_def = from_ascii(
279 "% Backwards compatibility for LuaTeX < 0.90\n"
280 "\\@ifundefined{pageheight}{\\let\\pageheight\\pdfpageheight}{}\n"
281 "\\@ifundefined{pagewidth}{\\let\\pagewidth\\pdfpagewidth}{}\n"
282 "\\pageheight\\paperheight\n"
283 "\\pagewidth\\paperwidth\n");
285 static docstring const cedilla_def = from_ascii(
286 "\\newcommand{\\docedilla}[2]{\\underaccent{#1\\mathchar'30}{#2}}\n"
287 "\\newcommand{\\cedilla}[1]{\\mathpalette\\docedilla{#1}}\n");
289 static docstring const subring_def = from_ascii(
290 "\\newcommand{\\dosubring}[2]{\\underaccent{#1\\mathchar'27}{#2}}\n"
291 "\\newcommand{\\subring}[1]{\\mathpalette\\dosubring{#1}}\n");
293 static docstring const subdot_def = from_ascii(
294 "\\newcommand{\\dosubdot}[2]{\\underaccent{#1.}{#2}}\n"
295 "\\newcommand{\\subdot}[1]{\\mathpalette\\dosubdot{#1}}\n");
297 static docstring const subhat_def = from_ascii(
298 "\\newcommand{\\dosubhat}[2]{\\underaccent{#1\\mathchar'136}{#2}}\n"
299 "\\newcommand{\\subhat}[1]{\\mathpalette\\dosubhat{#1}}\n");
301 static docstring const subtilde_def = from_ascii(
302 "\\newcommand{\\dosubtilde}[2]{\\underaccent{#1\\mathchar'176}{#2}}\n"
303 "\\newcommand{\\subtilde}[1]{\\mathpalette\\dosubtilde{#1}}\n");
305 static docstring const dacute_def = from_ascii(
306 "\\DeclareMathAccent{\\dacute}{\\mathalpha}{operators}{'175}\n");
308 static docstring const tipasymb_def = from_ascii(
309 "\\DeclareFontEncoding{T3}{}{}\n"
310 "\\DeclareSymbolFont{tipasymb}{T3}{cmr}{m}{n}\n");
312 static docstring const dgrave_def = from_ascii(
313 "\\DeclareMathAccent{\\dgrave}{\\mathord}{tipasymb}{'15}\n");
315 static docstring const rcap_def = from_ascii(
316 "\\DeclareMathAccent{\\rcap}{\\mathord}{tipasymb}{'20}\n");
318 static docstring const ogonek_def = from_ascii(
319 "\\newcommand{\\doogonek}[2]{\\setbox0=\\hbox{$#1#2$}\\underaccent{#1\\mkern-6mu\n"
320 " \\ifx#2O\\hskip0.5\\wd0\\else\\ifx#2U\\hskip0.5\\wd0\\else\\hskip\\wd0\\fi\\fi\n"
321 " \\ifx#2o\\mkern-2mu\\else\\ifx#2e\\mkern-1mu\\fi\\fi\n"
322 " \\mathchar\"0\\hexnumber@\\symtipasymb0C}{#2}}\n"
323 "\\newcommand{\\ogonek}[1]{\\mathpalette\\doogonek{#1}}\n");
325 static docstring const lyxaccent_def = from_ascii(
326 "%% custom text accent \\LyxTextAccent[<rise value (length)>]{<accent>}{<base>}\n"
327 "\\newcommand*{\\LyxTextAccent}[3][0ex]{%\n"
328 " \\hmode@bgroup\\ooalign{\\null#3\\crcr\\hidewidth\n"
329 " \\raise#1\\hbox{#2}\\hidewidth}\\egroup}\n"
330 "%% select a font size smaller than the current font size:\n"
331 "\\newcommand{\\LyxAccentSize}[1][\\sf@size]{%\n"
332 " \\check@mathfonts\\fontsize#1\\z@\\math@fontsfalse\\selectfont\n"
335 static docstring const textcommabelow_def = from_ascii(
336 "\\ProvideTextCommandDefault{\\textcommabelow}[1]{%%\n"
337 " \\LyxTextAccent[-.31ex]{\\LyxAccentSize,}{#1}}\n");
339 static docstring const textcommaabove_def = from_ascii(
340 "\\ProvideTextCommandDefault{\\textcommaabove}[1]{%%\n"
341 " \\LyxTextAccent[.5ex]{\\LyxAccentSize`}{#1}}\n");
343 static docstring const textcommaaboveright_def = from_ascii(
344 "\\ProvideTextCommandDefault{\\textcommaaboveright}[1]{%%\n"
345 " \\LyxTextAccent[.5ex]{\\LyxAccentSize\\ '}{#1}}\n");
347 // Baltic languages use a comma-accent instead of a cedilla
348 static docstring const textbaltic_def = from_ascii(
349 "%% use comma accent instead of cedilla for these characters:\n"
350 "\\DeclareTextCompositeCommand{\\c}{T1}{g}{\\textcommaabove{g}}\n"
351 "\\DeclareTextCompositeCommand{\\c}{T1}{G}{\\textcommabelow{G}}\n"
352 "\\DeclareTextCompositeCommand{\\c}{T1}{k}{\\textcommabelow{k}}\n"
353 "\\DeclareTextCompositeCommand{\\c}{T1}{K}{\\textcommabelow{K}}\n"
354 "\\DeclareTextCompositeCommand{\\c}{T1}{l}{\\textcommabelow{l}}\n"
355 "\\DeclareTextCompositeCommand{\\c}{T1}{L}{\\textcommabelow{L}}\n"
356 "\\DeclareTextCompositeCommand{\\c}{T1}{n}{\\textcommabelow{n}}\n"
357 "\\DeclareTextCompositeCommand{\\c}{T1}{N}{\\textcommabelow{N}}\n"
358 "\\DeclareTextCompositeCommand{\\c}{T1}{r}{\\textcommabelow{r}}\n"
359 "\\DeclareTextCompositeCommand{\\c}{T1}{R}{\\textcommabelow{R}}\n");
361 // split-level fractions
362 static docstring const xfrac_def = from_ascii(
363 "\\usepackage{xfrac}\n");
364 static docstring const smallLetterFrac_def = from_ascii(
365 "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{default}{text}\n"
366 " {phantom=c, scale-factor=1.0, slash-left-kern=-.05em}\n"
367 "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmr}{text}\n"
368 " {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
369 "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmss}{text}\n"
370 " {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
371 "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmr}{text}\n"
372 " {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
373 "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmss}{text}\n"
374 " {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
375 "\\newcommand{\\smallLetterFrac}[2]{%\n"
376 " {\\UseCollection{xfrac}{smallLetterFrac}\\sfrac{#1}{#2}}}\n");
378 static docstring const lyxref_def = from_ascii(
379 "\\RS@ifundefined{subsecref}\n"
380 " {\\newref{subsec}{name = \\RSsectxt}}\n"
382 "\\RS@ifundefined{thmref}\n"
383 " {\\def\\RSthmtxt{theorem~}\\newref{thm}{name = \\RSthmtxt}}\n"
385 "\\RS@ifundefined{lemref}\n"
386 " {\\def\\RSlemtxt{lemma~}\\newref{lem}{name = \\RSlemtxt}}\n"
389 // Make sure the columns are also outputed as rtl
390 static docstring const rtloutputdblcol_def = from_ascii(
391 "\\def\\@outputdblcol{%\n"
392 " \\if@firstcolumn\n"
393 " \\global \\@firstcolumnfalse\n"
394 " \\global \\setbox\\@leftcolumn \\box\\@outputbox\n"
396 " \\global \\@firstcolumntrue\n"
397 " \\setbox\\@outputbox \\vbox {%\n"
398 " \\hb@xt@\\textwidth {%\n"
399 " \\kern\\textwidth \\kern-\\columnwidth %**\n"
400 " \\hb@xt@\\columnwidth {%\n"
401 " \\box\\@leftcolumn \\hss}%\n"
402 " \\kern-\\textwidth %**\n"
404 " {\\normalcolor\\vrule \\@width\\columnseprule}%\n"
406 " \\kern-\\textwidth %**\n"
407 " \\hb@xt@\\columnwidth {%\n"
408 " \\box\\@outputbox \\hss}%\n"
409 " \\kern-\\columnwidth \\kern\\textwidth %**\n"
412 " \\@combinedblfloats\n"
415 " \\@dblfloatplacement\n"
416 " \\@startdblcolumn\n"
417 " \\@whilesw\\if@fcolmade \\fi\n"
419 " \\@startdblcolumn}%\n"
423 "\\@mparswitchtrue\n");
425 static docstring const lyxmintcaption_def = from_ascii(
426 "\\long\\def\\lyxmintcaption[#1]#2{%\n"
427 " \\ifx#1t\\vskip\\baselineskip\\fi%\n"
428 " \\refstepcounter{listing}\\noindent%\n"
429 " \\addcontentsline{lol}{listing}%\n"
430 " {\\protect\\numberline{\\thelisting}{\\ignorespaces #2}}%\n"
431 " \\setbox\\@tempboxa\\hbox{\\listingscaption~\\thelisting: #2}%\n"
432 " \\ifdim \\wd\\@tempboxa >\\linewidth%\n"
433 " \\parbox[t]{\\linewidth}{\\unhbox\\@tempboxa}\\else%\n"
434 " \\hbox to\\linewidth{\\hfil\\box\\@tempboxa\\hfil}\\fi%\n"
435 " \\ifx#1b\\vskip\\baselineskip\\fi\n"
439 /////////////////////////////////////////////////////////////////////
443 /////////////////////////////////////////////////////////////////////
445 static docstring const lyxnoun_style = from_ascii(
447 " font-variant: small-caps;\n"
451 // this is how it normally renders, but it might not always do so.
452 static docstring const lyxstrikeout_style = from_ascii(
454 " text-decoration: line-through;\n"
458 /////////////////////////////////////////////////////////////////////
462 /////////////////////////////////////////////////////////////////////
465 LaTeXFeatures::LaTeXFeatures(Buffer const & b, BufferParams const & p,
466 OutputParams const & r)
467 : buffer_(&b), params_(p), runparams_(r), in_float_(false),
468 in_deleted_inset_(false)
472 LaTeXFeatures::LangPackage LaTeXFeatures::langPackage() const
474 string const local_lp = bufferParams().lang_package;
476 // Locally, custom is just stored as a string
477 // in bufferParams().lang_package.
478 if (local_lp != "auto"
479 && local_lp != "babel"
480 && local_lp != "default"
481 && local_lp != "none")
482 return LANG_PACK_CUSTOM;
484 if (local_lp == "none")
485 return LANG_PACK_NONE;
487 /* If "auto" is selected, we load polyglossia with non-TeX fonts,
488 * else we select babel.
489 * If babel is selected (either directly or via the "auto"
490 * mechanism), we really do only require it if we have
491 * a language that needs it.
493 bool const polyglossia_required =
494 params_.useNonTeXFonts
495 && isAvailable("polyglossia")
496 && !isProvided("babel")
497 && this->hasOnlyPolyglossiaLanguages();
498 bool const babel_required =
499 !bufferParams().language->babel().empty()
500 || !this->getBabelLanguages().empty();
502 if (local_lp == "auto") {
503 // polyglossia requirement has priority over babel
504 if (polyglossia_required)
505 return LANG_PACK_POLYGLOSSIA;
506 else if (babel_required)
507 return LANG_PACK_BABEL;
510 if (local_lp == "babel") {
512 return LANG_PACK_BABEL;
515 if (local_lp == "default") {
516 switch (lyxrc.language_package_selection) {
518 // polyglossia requirement has priority over babel
519 if (polyglossia_required)
520 return LANG_PACK_POLYGLOSSIA;
521 else if (babel_required)
522 return LANG_PACK_BABEL;
524 case LyXRC::LP_BABEL:
526 return LANG_PACK_BABEL;
528 case LyXRC::LP_CUSTOM:
529 return LANG_PACK_CUSTOM;
531 return LANG_PACK_NONE;
535 return LANG_PACK_NONE;
539 void LaTeXFeatures::require(string const & name)
541 features_.insert(name);
545 void LaTeXFeatures::require(set<string> const & names)
547 features_.insert(names.begin(), names.end());
551 void LaTeXFeatures::provide(string const & name)
553 provides_.insert(name);
557 void LaTeXFeatures::useLayout(docstring const & layoutname)
559 useLayout(layoutname, 0);
563 void LaTeXFeatures::useLayout(docstring const & layoutname, int level)
565 // Some code to avoid loops in dependency definition
566 const int maxlevel = 30;
567 if (level > maxlevel) {
568 lyxerr << "LaTeXFeatures::useLayout: maximum level of "
569 << "recursion attained by layout "
570 << to_utf8(layoutname) << endl;
574 DocumentClass const & tclass = params_.documentClass();
575 if (tclass.hasLayout(layoutname)) {
576 // Is this layout already in usedLayouts?
577 if (find(usedLayouts_.begin(), usedLayouts_.end(), layoutname)
578 != usedLayouts_.end())
581 Layout const & layout = tclass[layoutname];
582 require(layout.requires());
584 if (!layout.depends_on().empty()) {
585 useLayout(layout.depends_on(), level + 1);
587 usedLayouts_.push_back(layoutname);
589 lyxerr << "LaTeXFeatures::useLayout: layout `"
590 << to_utf8(layoutname) << "' does not exist in this class"
596 void LaTeXFeatures::useInsetLayout(InsetLayout const & lay)
598 docstring const & lname = lay.name();
599 DocumentClass const & tclass = params_.documentClass();
601 // this is a default inset layout, nothing useful here
602 if (!tclass.hasInsetLayout(lname))
604 // Is this layout already in usedInsetLayouts?
605 if (find(usedInsetLayouts_.begin(), usedInsetLayouts_.end(), lname)
606 != usedInsetLayouts_.end())
609 require(lay.requires());
610 usedInsetLayouts_.push_back(lname);
614 bool LaTeXFeatures::isRequired(string const & name) const
616 return features_.find(name) != features_.end();
620 bool LaTeXFeatures::isProvided(string const & name) const
622 // Currently, this is only features provided by babel languages
623 // (such as textgreek)
624 if (provides_.find(name) != provides_.end())
627 if (params_.useNonTeXFonts)
628 return params_.documentClass().provides(name);
630 bool const ot1 = (params_.main_font_encoding() == "default"
631 || params_.main_font_encoding() == "OT1");
632 bool const complete = (params_.fontsSans() == "default"
633 && params_.fontsTypewriter() == "default");
634 bool const nomath = (params_.fontsMath() == "default");
635 return params_.documentClass().provides(name)
636 || theLaTeXFonts().getLaTeXFont(
637 from_ascii(params_.fontsRoman())).provides(name, ot1,
640 || theLaTeXFonts().getLaTeXFont(
641 from_ascii(params_.fontsSans())).provides(name, ot1,
644 || theLaTeXFonts().getLaTeXFont(
645 from_ascii(params_.fontsTypewriter())).provides(name, ot1,
648 || theLaTeXFonts().getLaTeXFont(
649 from_ascii(params_.fontsMath())).provides(name, ot1,
655 bool LaTeXFeatures::mustProvide(string const & name) const
657 return isRequired(name) && !isProvided(name);
661 bool LaTeXFeatures::isAvailable(string const & name)
663 string::size_type const i = name.find("->");
664 if (i != string::npos) {
665 string const from = name.substr(0,i);
666 string const to = name.substr(i+2);
667 //LYXERR0("from=[" << from << "] to=[" << to << "]");
668 return theConverters().isReachable(from, to);
670 return LaTeXPackages::isAvailable(name);
676 void addSnippet(std::list<TexString> & list, TexString ts, bool allow_dupes)
679 // test the absense of duplicates, i.e. elements with same str
680 none_of(list.begin(), list.end(), [&](TexString const & ts2){
681 return ts.str == ts2.str;
684 list.push_back(move(ts));
688 TexString getSnippets(std::list<TexString> const & list)
690 otexstringstream snip;
691 for (TexString const & ts : list)
692 snip << TexString(ts) << '\n';
693 return snip.release();
699 void LaTeXFeatures::addPreambleSnippet(TexString ts, bool allow_dupes)
701 addSnippet(preamble_snippets_, move(ts), allow_dupes);
705 void LaTeXFeatures::addPreambleSnippet(docstring const & str, bool allow_dupes)
707 addSnippet(preamble_snippets_, TexString(str), allow_dupes);
711 void LaTeXFeatures::addCSSSnippet(std::string const & snippet)
713 addSnippet(css_snippets_, TexString(from_ascii(snippet)), false);
717 TexString LaTeXFeatures::getPreambleSnippets() const
719 return getSnippets(preamble_snippets_);
723 docstring LaTeXFeatures::getCSSSnippets() const
725 return getSnippets(css_snippets_).str;
730 void LaTeXFeatures::useFloat(string const & name, bool subfloat)
732 if (!usedFloats_[name])
733 usedFloats_[name] = subfloat;
736 // We only need float.sty if we use non builtin floats, or if we
737 // use the "H" modifier. This includes modified table and
738 // figure floats. (Lgb)
739 Floating const & fl = params_.documentClass().floats().getType(name);
740 if (!fl.floattype().empty() && fl.usesFloatPkg()) {
746 void LaTeXFeatures::useLanguage(Language const * lang)
748 if (!lang->babel().empty() || !lang->polyglossia().empty())
749 UsedLanguages_.insert(lang);
750 if (!lang->requires().empty())
751 require(lang->requires());
752 // currently only supported for Babel
753 if (!lang->provides().empty() && useBabel())
754 provide(lang->provides());
755 // CJK languages do not have a babel name.
756 // They use the CJK package
757 if (lang->encoding()->package() == Encoding::CJK)
759 // japanese package is special
760 if (lang->encoding()->package() == Encoding::japanese)
765 void LaTeXFeatures::includeFile(docstring const & key, string const & name)
767 IncludedFiles_[key] = name;
771 bool LaTeXFeatures::hasLanguages() const
773 return !UsedLanguages_.empty();
777 bool LaTeXFeatures::hasOnlyPolyglossiaLanguages() const
779 // first the main language
780 if (params_.language->polyglossia().empty())
782 // now the secondary languages
783 LanguageList::const_iterator const begin = UsedLanguages_.begin();
784 for (LanguageList::const_iterator cit = begin;
785 cit != UsedLanguages_.end();
787 if ((*cit)->polyglossia().empty())
794 bool LaTeXFeatures::hasPolyglossiaExclusiveLanguages() const
796 // first the main language
797 if (params_.language->isPolyglossiaExclusive())
799 // now the secondary languages
800 LanguageList::const_iterator const begin = UsedLanguages_.begin();
801 for (LanguageList::const_iterator cit = begin;
802 cit != UsedLanguages_.end();
804 if ((*cit)->isPolyglossiaExclusive())
811 vector<string> LaTeXFeatures::getPolyglossiaExclusiveLanguages() const
813 vector<string> result;
814 // first the main language
815 if (params_.language->isPolyglossiaExclusive())
816 result.push_back(params_.language->display());
817 // now the secondary languages
818 LanguageList::const_iterator const begin = UsedLanguages_.begin();
819 for (LanguageList::const_iterator cit = begin;
820 cit != UsedLanguages_.end();
822 if ((*cit)->isPolyglossiaExclusive())
823 result.push_back((*cit)->display());
829 vector<string> LaTeXFeatures::getBabelExclusiveLanguages() const
831 vector<string> result;
832 // first the main language
833 if (params_.language->isBabelExclusive())
834 result.push_back(params_.language->display());
835 // now the secondary languages
836 LanguageList::const_iterator const begin = UsedLanguages_.begin();
837 for (LanguageList::const_iterator cit = begin;
838 cit != UsedLanguages_.end();
840 if ((*cit)->isBabelExclusive())
841 result.push_back((*cit)->display());
847 string LaTeXFeatures::getBabelLanguages() const
852 LanguageList::const_iterator const begin = UsedLanguages_.begin();
853 for (LanguageList::const_iterator cit = begin;
854 cit != UsedLanguages_.end();
856 if ((*cit)->babel().empty())
862 langs << (*cit)->babel();
868 set<string> LaTeXFeatures::getPolyglossiaLanguages() const
872 LanguageList::const_iterator const begin = UsedLanguages_.begin();
873 for (LanguageList::const_iterator cit = begin;
874 cit != UsedLanguages_.end();
876 // We do not need the variants here
877 langs.insert((*cit)->polyglossia());
883 set<string> LaTeXFeatures::getEncodingSet(string const & doc_encoding) const
885 // This does only find encodings of languages supported by babel, but
886 // that does not matter since we don't have a language with an
887 // encoding supported by inputenc but without babel support.
889 for (auto const & lang : UsedLanguages_)
890 if (lang->encoding()->latexName() != doc_encoding &&
891 (lang->encoding()->package() == Encoding::inputenc
892 || lang->encoding()->package() == Encoding::japanese))
893 encs.insert(lang->encoding()->latexName());
898 void LaTeXFeatures::getFontEncodings(vector<string> & encs, bool const onlylangs) const
901 // these must be loaded if glyphs of this script are used
902 // unless a language providing them is used in the document
903 if (mustProvide("textgreek")
904 && find(encs.begin(), encs.end(), "LGR") == encs.end())
905 encs.insert(encs.begin(), "LGR");
906 if (mustProvide("textcyrillic")
907 && find(encs.begin(), encs.end(), "T2A") == encs.end())
908 encs.insert(encs.begin(), "T2A");
911 for (auto const & lang : UsedLanguages_) {
912 vector<string> extraencs =
913 getVectorFromString(lang->fontenc(buffer().masterParams()));
914 for (auto const & extra : extraencs) {
915 if (extra != "none" && find(encs.begin(), encs.end(), extra) == encs.end())
916 encs.insert(encs.begin(), extra);
922 bool LaTeXFeatures::hasRTLLanguage() const
924 if (params_.language->rightToLeft())
926 for (auto const & lang : UsedLanguages_)
927 if (lang->rightToLeft())
934 char const * simplefeatures[] = {
935 // note that the package order here will be the same in the LaTeX-output
943 // subfig is handled in BufferParams.cpp
947 /*For a successful cooperation of the `wrapfig' package with the
948 `float' package you should load the `wrapfig' package *after*
949 the `float' package. See the caption package documentation
980 // listings is handled in BufferParams.cpp
1007 char const * bibliofeatures[] = {
1008 // Known bibliography packages (will be loaded before natbib)
1024 int const nb_bibliofeatures = sizeof(bibliofeatures) / sizeof(char const *);
1026 int const nb_simplefeatures = sizeof(simplefeatures) / sizeof(char const *);
1031 string const LaTeXFeatures::getColorOptions() const
1033 ostringstream colors;
1035 // Handling the color packages separately is needed to be able to load them
1036 // before babel when hyperref is loaded with the colorlinks option
1037 // for more info see Bufferparams.cpp
1040 if (mustProvide("color") || mustProvide("xcolor")) {
1041 string const package =
1042 (mustProvide("xcolor") ? "xcolor" : "color");
1043 if (params_.graphics_driver == "default"
1044 || params_.graphics_driver == "none")
1045 colors << "\\usepackage{" << package << "}\n";
1047 colors << "\\usepackage["
1048 << params_.graphics_driver
1049 << "]{" << package << "}\n";
1052 // pdfcolmk must be loaded after color
1053 if (mustProvide("pdfcolmk"))
1054 colors << "\\usepackage{pdfcolmk}\n";
1056 // the following 3 color commands must be set after color
1057 // is loaded and before pdfpages, therefore add the command
1058 // here define the set color
1059 if (mustProvide("pagecolor")) {
1060 colors << "\\definecolor{page_backgroundcolor}{rgb}{";
1061 colors << outputLaTeXColor(params_.backgroundcolor) << "}\n";
1062 // set the page color
1063 colors << "\\pagecolor{page_backgroundcolor}\n";
1066 if (mustProvide("fontcolor")) {
1067 colors << "\\definecolor{document_fontcolor}{rgb}{";
1068 colors << outputLaTeXColor(params_.fontcolor) << "}\n";
1070 colors << "\\color{document_fontcolor}\n";
1073 if (mustProvide("lyxgreyedout")) {
1074 colors << "\\definecolor{note_fontcolor}{rgb}{";
1075 colors << outputLaTeXColor(params_.notefontcolor) << "}\n";
1076 // the color will be set together with the definition of
1077 // the lyxgreyedout environment (see lyxgreyedout_def)
1080 // color for shaded boxes
1081 if (isRequired("framed") && mustProvide("color")) {
1082 colors << "\\definecolor{shadecolor}{rgb}{";
1083 colors << outputLaTeXColor(params_.boxbgcolor) << "}\n";
1084 // this color is automatically used by the LaTeX-package "framed"
1087 return colors.str();
1091 string const LaTeXFeatures::getPackageOptions() const
1093 ostringstream packageopts;
1094 // Output all the package option stuff we have been asked to do.
1095 map<string, string>::const_iterator it =
1096 params_.documentClass().packageOptions().begin();
1097 map<string, string>::const_iterator en =
1098 params_.documentClass().packageOptions().end();
1099 for (; it != en; ++it)
1100 if (mustProvide(it->first))
1101 packageopts << "\\PassOptionsToPackage{" << it->second << "}"
1102 << "{" << it->first << "}\n";
1103 return packageopts.str();
1107 string const LaTeXFeatures::getPackages() const
1109 ostringstream packages;
1111 // FIXME: currently, we can only load packages and macros known
1113 // However, with the Require tag of layouts/custom insets,
1114 // also unknown packages can be requested. They are silently
1115 // swallowed now. We should change this eventually.
1117 // These are all the 'simple' includes. i.e
1118 // packages which we just \usepackage{package}
1119 for (int i = 0; i < nb_simplefeatures; ++i) {
1120 if (mustProvide(simplefeatures[i]))
1121 packages << "\\usepackage{" << simplefeatures[i] << "}\n";
1124 // The rest of these packages are somewhat more complicated
1125 // than those above.
1127 if (mustProvide("footnote")) {
1128 if (isRequired("hyperref"))
1129 packages << "\\usepackage{footnotehyper}\n";
1131 packages << "\\usepackage{footnote}\n";
1134 // [pdf]lscape is used to rotate longtables
1135 if (mustProvide("lscape")) {
1136 if (runparams_.flavor == OutputParams::LATEX
1137 || runparams_.flavor == OutputParams::DVILUATEX)
1138 packages << "\\usepackage{lscape}\n";
1140 packages << "\\usepackage{pdflscape}\n";
1143 // The tipa package and its extensions (tipx, tone) must not
1144 // be loaded with non-TeX fonts, since fontspec includes the
1145 // respective macros
1146 if (mustProvide("tipa") && !params_.useNonTeXFonts)
1147 packages << "\\usepackage{tipa}\n";
1148 if (mustProvide("tipx") && !params_.useNonTeXFonts)
1149 packages << "\\usepackage{tipx}\n";
1150 if (mustProvide("extraipa") && !params_.useNonTeXFonts)
1151 packages << "\\usepackage{extraipa}\n";
1152 if (mustProvide("tone") && !params_.useNonTeXFonts)
1153 packages << "\\usepackage{tone}\n";
1155 // if fontspec or newtxmath is used, AMS packages have to be loaded
1156 // before fontspec (in BufferParams)
1157 string const amsPackages = loadAMSPackages();
1158 bool const ot1 = (params_.main_font_encoding() == "default"
1159 || params_.main_font_encoding() == "OT1");
1160 bool const use_newtxmath =
1161 theLaTeXFonts().getLaTeXFont(from_ascii(params_.fontsMath())).getUsedPackage(
1162 ot1, false, false) == "newtxmath";
1164 if (!params_.useNonTeXFonts && !use_newtxmath && !amsPackages.empty())
1165 packages << amsPackages;
1167 if (mustProvide("cancel") &&
1168 params_.use_package("cancel") != BufferParams::package_off)
1169 packages << "\\usepackage{cancel}\n";
1171 // marvosym and bbding both define the \Cross macro
1172 if (mustProvide("marvosym")) {
1173 if (mustProvide("bbding"))
1174 packages << "\\let\\Cross\\relax\n";
1175 packages << "\\usepackage{marvosym}\n";
1178 // accents must be loaded after amsmath
1179 if (mustProvide("accents") &&
1180 params_.use_package("accents") != BufferParams::package_off)
1181 packages << "\\usepackage{accents}\n";
1183 // mathdots must be loaded after amsmath
1184 if (mustProvide("mathdots") &&
1185 params_.use_package("mathdots") != BufferParams::package_off)
1186 packages << "\\usepackage{mathdots}\n";
1188 // yhmath must be loaded after amsmath
1189 if (mustProvide("yhmath") &&
1190 params_.use_package("yhmath") != BufferParams::package_off)
1191 packages << "\\usepackage{yhmath}\n";
1193 // stmaryrd must be loaded after amsmath
1194 if (mustProvide("stmaryrd") &&
1195 params_.use_package("stmaryrd") != BufferParams::package_off)
1196 packages << "\\usepackage{stmaryrd}\n";
1198 if (mustProvide("stackrel") &&
1199 params_.use_package("stackrel") != BufferParams::package_off)
1200 packages << "\\usepackage{stackrel}\n";
1202 if (mustProvide("undertilde") &&
1203 params_.use_package("undertilde") != BufferParams::package_off)
1204 packages << "\\usepackage{undertilde}\n";
1206 // [x]color and pdfcolmk are handled in getColorOptions() above
1209 if (isRequired("makeidx") || isRequired("splitidx")) {
1210 if (!isProvided("makeidx") && !isRequired("splitidx"))
1211 packages << "\\usepackage{makeidx}\n";
1212 if (mustProvide("splitidx"))
1213 packages << "\\usepackage{splitidx}\n";
1214 packages << "\\makeindex\n";
1218 if (mustProvide("graphicx") && params_.graphics_driver != "none") {
1219 if (params_.graphics_driver == "default")
1220 packages << "\\usepackage{graphicx}\n";
1222 packages << "\\usepackage["
1223 << params_.graphics_driver
1227 // lyxskak.sty --- newer chess support based on skak.sty
1228 if (mustProvide("chess"))
1229 packages << "\\usepackage[ps,mover]{lyxskak}\n";
1232 if (mustProvide("setspace") && !isProvided("SetSpace"))
1233 packages << "\\usepackage{setspace}\n";
1235 // we need to assure that mhchem is loaded before esint and every other
1236 // package that redefines command of amsmath because mhchem loads amlatex
1237 // (this info is from the author of mhchem from June 2013)
1238 if (mustProvide("mhchem") &&
1239 params_.use_package("mhchem") != BufferParams::package_off)
1240 packages << "\\PassOptionsToPackage{version=3}{mhchem}\n"
1241 "\\usepackage{mhchem}\n";
1243 // wasysym is a simple feature, but it must be after amsmath if both
1245 // wasysym redefines some integrals (e.g. iint) from amsmath. That
1246 // leads to inconsistent integrals. We only load this package if
1247 // the document does not contain integrals (then isRequired("esint")
1248 // is false) or if esint is used, since esint redefines all relevant
1249 // integral symbols from wasysym and amsmath.
1250 // See http://www.lyx.org/trac/ticket/1942
1251 if (mustProvide("wasysym") &&
1252 params_.use_package("wasysym") != BufferParams::package_off &&
1253 (params_.use_package("esint") != BufferParams::package_off || !isRequired("esint")))
1254 packages << "\\usepackage{wasysym}\n";
1256 // esint must be after amsmath (and packages requiring amsmath, like mhchem)
1257 // and wasysym, since it will redeclare inconsistent integral symbols
1258 if (mustProvide("esint") &&
1259 params_.use_package("esint") != BufferParams::package_off)
1260 packages << "\\usepackage{esint}\n";
1262 // Known bibliography packages (simple \usepackage{package})
1263 for (int i = 0; i < nb_bibliofeatures; ++i) {
1264 if (mustProvide(bibliofeatures[i]))
1265 packages << "\\usepackage{"
1266 << bibliofeatures[i] << "}\n";
1269 // Compatibility between achicago and natbib
1270 if (mustProvide("achicago") && mustProvide("natbib"))
1271 packages << "\\let\\achicagobib\\thebibliography\n";
1274 // Some classes load natbib themselves, but still allow (or even require)
1275 // plain numeric citations (ReVTeX is such a case, see bug 5182).
1276 // This special case is indicated by the "natbib-internal" key.
1277 if (mustProvide("natbib")
1278 && !isProvided("natbib-internal")
1279 && !isProvided("biblatex")
1280 && !isProvided("biblatex-natbib")
1281 && !isProvided("jurabib")) {
1282 packages << "\\usepackage[";
1283 if (params_.citeEngineType() == ENGINE_TYPE_NUMERICAL)
1284 packages << "numbers";
1286 packages << "authoryear";
1287 if (!params_.biblio_opts.empty())
1288 packages << ',' << params_.biblio_opts;
1289 packages << "]{natbib}\n";
1292 // Compatibility between achicago and natbib
1293 if (mustProvide("achicago") && mustProvide("natbib")) {
1294 packages << "\\let\\thebibliography\\achicagobib\n";
1295 packages << "\\let\\SCcite\\astroncite\n";
1296 packages << "\\let\\UnexpandableProtect\\protect\n";
1299 // jurabib -- we need version 0.6 at least.
1300 if (mustProvide("jurabib")
1301 && !isProvided("natbib-internal")
1302 && !isProvided("natbib")
1303 && !isProvided("biblatex")
1304 && !isProvided("biblatex-natbib")) {
1305 packages << "\\usepackage";
1306 if (!params_.biblio_opts.empty())
1307 packages << '[' << params_.biblio_opts << ']';
1308 packages << "{jurabib}[2004/01/25]\n";
1311 // opcit -- we pass custombst as we output \bibliographystyle ourselves
1312 if (mustProvide("opcit")) {
1313 if (isRequired("hyperref"))
1314 packages << "\\usepackage[custombst,hyperref]{opcit}\n";
1316 packages << "\\usepackage[custombst]{opcit}\n";
1319 // xargs -- we need version 1.09 at least
1320 if (mustProvide("xargs"))
1321 packages << "\\usepackage{xargs}[2008/03/08]\n";
1323 if (mustProvide("xy"))
1324 packages << "\\usepackage[all]{xy}\n";
1326 if (mustProvide("feyn"))
1327 packages << "\\usepackage{feyn}\n"; //Diagram
1329 if (mustProvide("ulem"))
1330 packages << "\\PassOptionsToPackage{normalem}{ulem}\n"
1331 "\\usepackage{ulem}\n";
1333 if (mustProvide("nomencl")) {
1334 // Make it work with the new and old version of the package,
1335 // but don't use the compatibility option since it is
1336 // incompatible to other packages.
1337 packages << "\\usepackage{nomencl}\n"
1338 "% the following is useful when we have the old nomencl.sty package\n"
1339 "\\providecommand{\\printnomenclature}{\\printglossary}\n"
1340 "\\providecommand{\\makenomenclature}{\\makeglossary}\n"
1341 "\\makenomenclature\n";
1344 // fixltx2e provides subscript
1345 if (mustProvide("subscript") && !isRequired("fixltx2e"))
1346 packages << "\\usepackage{subscript}\n";
1348 // footmisc must be loaded after setspace
1349 // Set options here, load the package after the user preamble to
1350 // avoid problems with manual loaded footmisc.
1351 if (mustProvide("footmisc"))
1352 packages << "\\PassOptionsToPackage{stable}{footmisc}\n";
1354 if (mustProvide("microtype")){
1355 packages << "\\usepackage{microtype}\n";
1358 return packages.str();
1362 TexString LaTeXFeatures::getMacros() const
1364 otexstringstream macros;
1366 if (!preamble_snippets_.empty()) {
1368 macros << getPreambleSnippets();
1371 if (mustProvide("xetexdashbreakstate"))
1372 macros << "\\XeTeXdashbreakstate 0" << '\n';
1374 if (mustProvide("papersize")) {
1375 if (runparams_.flavor == OutputParams::LATEX
1376 || runparams_.flavor == OutputParams::DVILUATEX)
1377 macros << papersizedvi_def << '\n';
1378 else if (runparams_.flavor == OutputParams::LUATEX)
1379 macros << papersizepdflua_def << '\n';
1381 macros << papersizepdf_def << '\n';
1384 if (mustProvide("LyX")) {
1385 if (isRequired("hyperref"))
1386 macros << lyx_hyperref_def << '\n';
1388 macros << lyx_def << '\n';
1389 if (runparams_.use_polyglossia && hasRTLLanguage())
1390 macros << lyx_rtl_def << '\n';
1393 if (mustProvide("noun"))
1394 macros << noun_def << '\n';
1396 if (mustProvide("lyxarrow"))
1397 macros << lyxarrow_def << '\n';
1399 if (mustProvide("lyxzerowidthspace"))
1400 macros << lyxZWSP_def << '\n';
1402 if (!usePolyglossia() && mustProvide("textgreek")) {
1403 // ensure LGR font encoding is defined also if fontenc is not loaded by LyX
1404 if (params_.main_font_encoding() == "default")
1405 macros << textgreek_LGR_def;
1406 macros << textgreek_def << '\n';
1409 if (!usePolyglossia() && mustProvide("textcyrillic")) {
1410 // ensure T2A font encoding is set up also if fontenc is not loaded by LyX
1411 if (params_.main_font_encoding() == "default")
1412 macros << textcyr_T2A_def;
1413 macros << textcyr_def << '\n';
1416 // non-standard text accents:
1417 if (mustProvide("textcommaabove") || mustProvide("textcommaaboveright") ||
1418 mustProvide("textcommabelow") || mustProvide("textbaltic"))
1419 macros << lyxaccent_def;
1421 if (mustProvide("textcommabelow") || mustProvide("textbaltic"))
1422 macros << textcommabelow_def << '\n';
1424 if (mustProvide("textcommaabove") || mustProvide("textbaltic"))
1425 macros << textcommaabove_def << '\n';
1427 if (mustProvide("textcommaaboveright"))
1428 macros << textcommaaboveright_def << '\n';
1430 if (mustProvide("textbaltic"))
1431 macros << textbaltic_def << '\n';
1433 // split-level fractions
1434 if (mustProvide("xfrac") || mustProvide("smallLetterFrac"))
1435 macros << xfrac_def << '\n';
1437 if (mustProvide("smallLetterFrac"))
1438 macros << smallLetterFrac_def << '\n';
1440 if (mustProvide("lyxmathsym"))
1441 macros << lyxmathsym_def << '\n';
1443 if (mustProvide("cedilla"))
1444 macros << cedilla_def << '\n';
1446 if (mustProvide("subring"))
1447 macros << subring_def << '\n';
1449 if (mustProvide("subdot"))
1450 macros << subdot_def << '\n';
1452 if (mustProvide("subhat"))
1453 macros << subhat_def << '\n';
1455 if (mustProvide("subtilde"))
1456 macros << subtilde_def << '\n';
1458 if (mustProvide("dacute"))
1459 macros << dacute_def << '\n';
1461 if (mustProvide("tipasymb"))
1462 macros << tipasymb_def << '\n';
1464 if (mustProvide("dgrave"))
1465 macros << dgrave_def << '\n';
1467 if (mustProvide("rcap"))
1468 macros << rcap_def << '\n';
1470 if (mustProvide("ogonek"))
1471 macros << ogonek_def << '\n';
1474 if (mustProvide("quotesinglbase"))
1475 macros << quotesinglbase_def << '\n';
1476 if (mustProvide("quotedblbase"))
1477 macros << quotedblbase_def << '\n';
1478 if (mustProvide("guilsinglleft"))
1479 macros << guilsinglleft_def << '\n';
1480 if (mustProvide("guilsinglright"))
1481 macros << guilsinglright_def << '\n';
1482 if (mustProvide("guillemotleft"))
1483 macros << guillemotleft_def << '\n';
1484 if (mustProvide("guillemotright"))
1485 macros << guillemotright_def << '\n';
1486 if (mustProvide("textquotedbl"))
1487 macros << textquotedbl_def << '\n';
1488 if (mustProvide("textquotesinglep")) {
1489 if (runparams_.flavor == OutputParams::XETEX)
1490 macros << textquotesinglep_xetex_def << '\n';
1492 macros << textquotesinglep_luatex_def << '\n';
1494 if (mustProvide("textquotedblp")) {
1495 if (runparams_.flavor == OutputParams::XETEX)
1496 macros << textquotedblp_xetex_def << '\n';
1498 macros << textquotedblp_luatex_def << '\n';
1502 if (mustProvide("binom") && !isRequired("amsmath"))
1503 macros << binom_def << '\n';
1504 if (mustProvide("mathcircumflex"))
1505 macros << mathcircumflex_def << '\n';
1508 if (mustProvide("ParagraphLeftIndent"))
1509 macros << paragraphleftindent_def;
1510 if (mustProvide("NeedLyXFootnoteCode"))
1511 macros << floatingfootnote_def;
1513 // some problems with tex->html converters
1514 if (mustProvide("NeedTabularnewline"))
1515 macros << tabularnewline_def;
1517 // greyed-out environment (note inset)
1518 // the color is specified in the routine
1519 // getColorOptions() to avoid LaTeX-package clashes
1520 if (mustProvide("lyxgreyedout"))
1521 macros << lyxgreyedout_def;
1523 if (mustProvide("lyxdot"))
1524 macros << lyxdot_def << '\n';
1527 getFloatDefinitions(macros);
1529 if (mustProvide("refstyle"))
1530 macros << lyxref_def << '\n';
1533 if (mustProvide("ct-dvipost"))
1534 macros << changetracking_dvipost_def;
1536 if (mustProvide("ct-xcolor-ulem")) {
1537 streamsize const prec = macros.os().precision(2);
1539 RGBColor cadd = rgbFromHexName(lcolor.getX11Name(Color_addedtext));
1540 macros << "\\providecolor{lyxadded}{rgb}{"
1541 << cadd.r / 255.0 << ',' << cadd.g / 255.0 << ',' << cadd.b / 255.0 << "}\n";
1543 RGBColor cdel = rgbFromHexName(lcolor.getX11Name(Color_deletedtext));
1544 macros << "\\providecolor{lyxdeleted}{rgb}{"
1545 << cdel.r / 255.0 << ',' << cdel.g / 255.0 << ',' << cdel.b / 255.0 << "}\n";
1547 macros.os().precision(prec);
1549 if (isRequired("hyperref"))
1550 macros << changetracking_xcolor_ulem_hyperref_def;
1552 macros << changetracking_xcolor_ulem_def;
1555 if (mustProvide("ct-tikz-math-sout"))
1556 macros << changetracking_tikz_math_sout_def;
1558 if (mustProvide("ct-none"))
1559 macros << changetracking_none_def;
1561 if (mustProvide("rtloutputdblcol"))
1562 macros << rtloutputdblcol_def;
1564 if (mustProvide("lyxmintcaption"))
1565 macros << lyxmintcaption_def;
1567 return macros.release();
1571 docstring const LaTeXFeatures::getBabelPresettings() const
1573 odocstringstream tmp;
1575 for (Language const * lang : UsedLanguages_)
1576 if (!lang->babel_presettings().empty())
1577 tmp << lang->babel_presettings() << '\n';
1578 if (!params_.language->babel_presettings().empty())
1579 tmp << params_.language->babel_presettings() << '\n';
1581 if (!contains(tmp.str(), '@'))
1584 return "\\makeatletter\n" + tmp.str() + "\\makeatother\n";
1588 docstring const LaTeXFeatures::getBabelPostsettings() const
1590 odocstringstream tmp;
1592 for (Language const * lang : UsedLanguages_)
1593 if (!lang->babel_postsettings().empty())
1594 tmp << lang->babel_postsettings() << '\n';
1595 if (!params_.language->babel_postsettings().empty())
1596 tmp << params_.language->babel_postsettings() << '\n';
1598 if (!contains(tmp.str(), '@'))
1601 return "\\makeatletter\n" + tmp.str() + "\\makeatother\n";
1605 bool LaTeXFeatures::needBabelLangOptions() const
1607 if (!lyxrc.language_global_options || params_.language->asBabelOptions())
1610 LanguageList::const_iterator it = UsedLanguages_.begin();
1611 LanguageList::const_iterator end = UsedLanguages_.end();
1612 for (; it != end; ++it)
1613 if ((*it)->asBabelOptions())
1620 string const LaTeXFeatures::loadAMSPackages() const
1624 if (mustProvide("amsmath")
1625 && params_.use_package("amsmath") != BufferParams::package_off) {
1626 tmp << "\\usepackage{amsmath}\n";
1628 // amsbsy and amstext are already provided by amsmath
1629 if (mustProvide("amsbsy"))
1630 tmp << "\\usepackage{amsbsy}\n";
1631 if (mustProvide("amstext"))
1632 tmp << "\\usepackage{amstext}\n";
1635 if (mustProvide("amsthm"))
1636 tmp << "\\usepackage{amsthm}\n";
1638 if (mustProvide("amssymb")
1639 && params_.use_package("amssymb") != BufferParams::package_off)
1640 tmp << "\\usepackage{amssymb}\n";
1646 docstring const LaTeXFeatures::getTClassPreamble() const
1648 // the text class specific preamble
1649 DocumentClass const & tclass = params_.documentClass();
1650 odocstringstream tcpreamble;
1652 tcpreamble << tclass.preamble();
1654 list<docstring>::const_iterator cit = usedLayouts_.begin();
1655 list<docstring>::const_iterator end = usedLayouts_.end();
1656 for (; cit != end; ++cit)
1657 // For InPreamble layouts, we output the preamble stuff earlier
1658 // (before the layouts). See Paragraph::Private::validate.
1659 if (!tclass[*cit].inpreamble)
1660 tcpreamble << tclass[*cit].preamble();
1662 cit = usedInsetLayouts_.begin();
1663 end = usedInsetLayouts_.end();
1664 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1665 for (; cit != end; ++cit) {
1666 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1667 if (it == ils.end())
1669 tcpreamble << it->second.preamble();
1672 return tcpreamble.str();
1676 docstring const LaTeXFeatures::getTClassHTMLPreamble() const
1678 DocumentClass const & tclass = params_.documentClass();
1679 odocstringstream tcpreamble;
1681 tcpreamble << tclass.htmlpreamble();
1683 list<docstring>::const_iterator cit = usedLayouts_.begin();
1684 list<docstring>::const_iterator end = usedLayouts_.end();
1685 for (; cit != end; ++cit)
1686 tcpreamble << tclass[*cit].htmlpreamble();
1688 cit = usedInsetLayouts_.begin();
1689 end = usedInsetLayouts_.end();
1690 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1691 for (; cit != end; ++cit) {
1692 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1693 if (it == ils.end())
1695 tcpreamble << it->second.htmlpreamble();
1698 return tcpreamble.str();
1702 docstring const LaTeXFeatures::getTClassHTMLStyles() const
1704 DocumentClass const & tclass = params_.documentClass();
1705 odocstringstream tcpreamble;
1707 if (mustProvide("noun"))
1708 tcpreamble << lyxnoun_style;
1709 // this isn't exact, but it won't hurt that much if it
1711 if (mustProvide("ulem"))
1712 tcpreamble << lyxstrikeout_style;
1714 tcpreamble << tclass.htmlstyles();
1716 list<docstring>::const_iterator cit = usedLayouts_.begin();
1717 list<docstring>::const_iterator end = usedLayouts_.end();
1718 for (; cit != end; ++cit)
1719 tcpreamble << tclass[*cit].htmlstyle();
1721 cit = usedInsetLayouts_.begin();
1722 end = usedInsetLayouts_.end();
1723 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1724 for (; cit != end; ++cit) {
1725 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1726 if (it == ils.end())
1728 tcpreamble << it->second.htmlstyle();
1731 return tcpreamble.str();
1737 docstring const getFloatI18nPreamble(docstring const & type,
1738 docstring const & name, Language const * lang,
1739 Encoding const & enc, bool const polyglossia)
1741 // Check whether name can be encoded in the buffer encoding
1742 bool encodable = true;
1743 for (size_t i = 0; i < name.size(); ++i) {
1744 if (!enc.encodable(name[i])) {
1750 docstring const language = polyglossia ? from_ascii(lang->polyglossia())
1751 : from_ascii(lang->babel());
1752 docstring const langenc = from_ascii(lang->encoding()->iconvName());
1753 docstring const texenc = from_ascii(lang->encoding()->latexName());
1754 docstring const bufenc = from_ascii(enc.iconvName());
1755 docstring const s1 = docstring(1, 0xF0000);
1756 docstring const s2 = docstring(1, 0xF0001);
1757 docstring const translated = encodable ? name
1758 : from_ascii("\\inputencoding{") + texenc + from_ascii("}")
1759 + s1 + langenc + s2 + name + s1 + bufenc + s2;
1761 odocstringstream os;
1762 os << "\\addto\\captions" << language
1763 << "{\\renewcommand{\\" << type << "name}{" << translated << "}}\n";
1768 docstring const i18npreamble(docstring const & templ, Language const * lang,
1769 Encoding const & enc, bool const polyglossia,
1770 bool const need_fixedwidth)
1775 string preamble = polyglossia ?
1776 subst(to_utf8(templ), "$$lang", lang->polyglossia()) :
1777 subst(to_utf8(templ), "$$lang", lang->babel());
1779 string const langenc = lang->encoding()->iconvName();
1780 string const texenc = lang->encoding()->latexName();
1781 string const bufenc = enc.iconvName();
1782 Encoding const * testenc(&enc);
1783 bool lang_fallback = false;
1784 bool ascii_fallback = false;
1785 if (need_fixedwidth && !enc.hasFixedWidth()) {
1786 if (lang->encoding()->hasFixedWidth()) {
1787 testenc = lang->encoding();
1788 lang_fallback = true;
1790 // We need a fixed width encoding, but both the buffer
1791 // encoding and the language encoding are variable
1792 // width. As a last fallback, try to convert to pure
1793 // ASCII using the LaTeX commands defined in unicodesymbols.
1794 testenc = encodings.fromLyXName("ascii");
1797 ascii_fallback = true;
1800 // First and second character of plane 15 (Private Use Area)
1801 string const s1 = "\xf3\xb0\x80\x80"; // U+F0000
1802 string const s2 = "\xf3\xb0\x80\x81"; // U+F0001
1804 // lyx::regex is not unicode-safe.
1805 // Should use QRegExp or (boost::u32regex, but that requires ICU)
1806 static regex const reg("_\\(([^\\)]+)\\)");
1808 while (regex_search(preamble, sub, reg)) {
1809 string const key = sub.str(1);
1810 docstring const name = lang->translateLayout(key);
1811 // Check whether name can be encoded in the buffer encoding
1812 bool encodable = true;
1813 for (size_t i = 0; i < name.size() && encodable; ++i)
1814 if (!testenc->encodable(name[i]))
1817 if (encodable && !lang_fallback)
1818 translated = to_utf8(name);
1819 else if (ascii_fallback)
1820 translated = to_ascii(testenc->latexString(name).first);
1822 translated = "\\inputencoding{" + texenc + "}"
1823 + s1 + langenc + s2 + to_utf8(name)
1825 preamble = subst(preamble, sub.str(), translated);
1827 return from_utf8(preamble);
1833 docstring const LaTeXFeatures::getTClassI18nPreamble(bool use_babel,
1834 bool use_polyglossia, bool use_minted) const
1836 DocumentClass const & tclass = params_.documentClass();
1837 // collect preamble snippets in a set to prevent multiple identical
1838 // commands (would happen if e.g. both theorem and theorem* are used)
1839 set<docstring> snippets;
1840 typedef LanguageList::const_iterator lang_it;
1841 lang_it const lbeg = UsedLanguages_.begin();
1842 lang_it const lend = UsedLanguages_.end();
1843 list<docstring>::const_iterator cit = usedLayouts_.begin();
1844 list<docstring>::const_iterator end = usedLayouts_.end();
1845 for (; cit != end; ++cit) {
1846 // language dependent commands (once per document)
1847 snippets.insert(i18npreamble(tclass[*cit].langpreamble(),
1848 buffer().language(),
1849 buffer().params().encoding(),
1850 use_polyglossia, false));
1851 // commands for language changing (for multilanguage documents)
1852 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1853 snippets.insert(i18npreamble(
1854 tclass[*cit].babelpreamble(),
1855 buffer().language(),
1856 buffer().params().encoding(),
1857 use_polyglossia, false));
1858 for (lang_it lit = lbeg; lit != lend; ++lit)
1859 snippets.insert(i18npreamble(
1860 tclass[*cit].babelpreamble(),
1862 buffer().params().encoding(),
1863 use_polyglossia, false));
1866 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1867 FloatList const & floats = params_.documentClass().floats();
1868 UsedFloats::const_iterator fit = usedFloats_.begin();
1869 UsedFloats::const_iterator fend = usedFloats_.end();
1870 for (; fit != fend; ++fit) {
1871 Floating const & fl = floats.getType(fit->first);
1872 // we assume builtin floats are translated
1873 if (fl.isPredefined())
1875 docstring const type = from_ascii(fl.floattype());
1876 docstring const flname = from_utf8(fl.name());
1877 docstring name = buffer().language()->translateLayout(fl.name());
1878 // only request translation if we have a real translation
1879 // (that differs from the source)
1881 snippets.insert(getFloatI18nPreamble(
1882 type, name, buffer().language(),
1883 buffer().params().encoding(),
1885 for (lang_it lit = lbeg; lit != lend; ++lit) {
1886 string const code = (*lit)->code();
1887 name = (*lit)->translateLayout(fl.name());
1888 // we assume we have a suitable translation if
1889 // either the language is English (we need to
1890 // translate into English if English is a secondary
1891 // language) or if translateIfPossible returns
1892 // something different to the English source.
1893 bool const have_translation =
1894 (flname != name || contains(code, "en"));
1895 if (have_translation)
1896 snippets.insert(getFloatI18nPreamble(
1898 buffer().params().encoding(),
1904 cit = usedInsetLayouts_.begin();
1905 end = usedInsetLayouts_.end();
1906 TextClass::InsetLayouts const & ils = tclass.insetLayouts();
1907 for (; cit != end; ++cit) {
1908 TextClass::InsetLayouts::const_iterator it = ils.find(*cit);
1909 if (it == ils.end())
1911 // The listings package does not work with variable width
1912 // encodings, only with fixed width encodings. Therefore we
1913 // need to force a fixed width encoding for
1914 // \lstlistlistingname and \lstlistingname (bug 9382).
1915 // This needs to be consistent with InsetListings::latex().
1916 bool const need_fixedwidth = !use_minted &&
1917 !runparams_.isFullUnicode() &&
1918 it->second.fixedwidthpreambleencoding();
1919 // language dependent commands (once per document)
1920 snippets.insert(i18npreamble(it->second.langpreamble(),
1921 buffer().language(),
1922 buffer().params().encoding(),
1923 use_polyglossia, need_fixedwidth));
1924 // commands for language changing (for multilanguage documents)
1925 if ((use_babel || use_polyglossia) && !UsedLanguages_.empty()) {
1926 snippets.insert(i18npreamble(
1927 it->second.babelpreamble(),
1928 buffer().language(),
1929 buffer().params().encoding(),
1930 use_polyglossia, need_fixedwidth));
1931 for (lang_it lit = lbeg; lit != lend; ++lit)
1932 snippets.insert(i18npreamble(
1933 it->second.babelpreamble(),
1935 buffer().params().encoding(),
1936 use_polyglossia, need_fixedwidth));
1940 odocstringstream tcpreamble;
1941 set<docstring>::const_iterator const send = snippets.end();
1942 set<docstring>::const_iterator it = snippets.begin();
1943 for (; it != send; ++it)
1945 return tcpreamble.str();
1949 docstring const LaTeXFeatures::getLyXSGMLEntities() const
1951 // Definition of entities used in the document that are LyX related.
1952 odocstringstream entities;
1954 if (mustProvide("lyxarrow")) {
1955 entities << "<!ENTITY lyxarrow \"->\">" << '\n';
1958 return entities.str();
1962 docstring const LaTeXFeatures::getIncludedFiles(string const & fname) const
1964 odocstringstream sgmlpreamble;
1966 docstring const basename(from_utf8(onlyPath(fname)));
1968 FileMap::const_iterator end = IncludedFiles_.end();
1969 for (FileMap::const_iterator fi = IncludedFiles_.begin();
1972 sgmlpreamble << "\n<!ENTITY " << fi->first
1973 << (isSGMLFileName(fi->second) ? " SYSTEM \"" : " \"")
1974 << makeRelPath(from_utf8(fi->second), basename) << "\">";
1976 return sgmlpreamble.str();
1980 void LaTeXFeatures::showStruct() const
1982 lyxerr << "LyX needs the following commands when LaTeXing:"
1983 << "\n***** Packages:" << getPackages()
1984 << "\n***** Macros:" << to_utf8(getMacros().str)
1985 << "\n***** Textclass stuff:" << to_utf8(getTClassPreamble())
1986 << "\n***** done." << endl;
1990 Buffer const & LaTeXFeatures::buffer() const
1996 void LaTeXFeatures::setBuffer(Buffer const & buffer)
2002 BufferParams const & LaTeXFeatures::bufferParams() const
2008 void LaTeXFeatures::getFloatDefinitions(otexstream & os) const
2010 FloatList const & floats = params_.documentClass().floats();
2012 // Here we will output the code to create the needed float styles.
2013 // We will try to do this as minimal as possible.
2014 // \floatstyle{ruled}
2015 // \newfloat{algorithm}{htbp}{loa}
2016 // \providecommand{\algorithmname}{Algorithm}
2017 // \floatname{algorithm}{\protect\algorithmname}
2018 UsedFloats::const_iterator cit = usedFloats_.begin();
2019 UsedFloats::const_iterator end = usedFloats_.end();
2020 for (; cit != end; ++cit) {
2021 Floating const & fl = floats.getType(cit->first);
2023 // For builtin floats we do nothing.
2024 if (fl.isPredefined())
2027 // We have to special case "table" and "figure"
2028 if (fl.floattype() == "tabular" || fl.floattype() == "figure") {
2029 // Output code to modify "table" or "figure"
2030 // but only if builtin == false
2031 // and that have to be true at this point in the
2033 docstring const type = from_ascii(fl.floattype());
2034 docstring const placement = from_ascii(fl.placement());
2035 docstring const style = from_ascii(fl.style());
2036 if (!style.empty()) {
2037 os << "\\floatstyle{" << style << "}\n"
2038 << "\\restylefloat{" << type << "}\n";
2040 if (!placement.empty()) {
2041 os << "\\floatplacement{" << type << "}{"
2042 << placement << "}\n";
2045 // The other non builtin floats.
2047 docstring const type = from_ascii(fl.floattype());
2048 docstring const placement = from_ascii(fl.placement());
2049 docstring const ext = from_ascii(fl.ext());
2050 docstring const within = from_ascii(fl.within());
2051 docstring const style = from_ascii(fl.style());
2052 docstring const name =
2053 buffer().language()->translateLayout(fl.name());
2054 os << "\\floatstyle{" << style << "}\n"
2055 << "\\newfloat{" << type << "}{" << placement
2056 << "}{" << ext << '}';
2057 if (!within.empty())
2058 os << '[' << within << ']';
2060 << "\\providecommand{\\" << type << "name}{"
2062 << "\\floatname{" << type << "}{\\protect\\"
2063 << type << "name}\n";
2065 // What missing here is to code to minimalize the code
2066 // output so that the same floatstyle will not be
2067 // used several times, when the same style is still in
2071 // The subfig package is loaded later
2072 os << "\n\\AtBeginDocument{\\newsubfloat{" << from_ascii(fl.floattype()) << "}}\n";
2077 void LaTeXFeatures::resolveAlternatives()
2079 for (Features::iterator it = features_.begin(); it != features_.end();) {
2080 if (contains(*it, '|')) {
2081 vector<string> const alternatives = getVectorFromString(*it, "|");
2082 vector<string>::const_iterator const end = alternatives.end();
2083 vector<string>::const_iterator ita = alternatives.begin();
2084 // Is any alternative already required? => use that
2085 for (; ita != end; ++ita) {
2086 if (isRequired(*ita))
2089 // Is any alternative available? => use the first one
2092 for (ita = alternatives.begin(); ita != end; ++ita) {
2093 if (isAvailable(*ita)) {
2099 // This will not work, but not requiring something
2100 // would be more confusing
2102 require(alternatives.front());
2103 features_.erase(it);
2104 it = features_.begin();
2111 void LaTeXFeatures::expandMultiples()
2113 for (Features::iterator it = features_.begin(); it != features_.end();) {
2114 if (contains(*it, ',')) {
2115 vector<string> const multiples = getVectorFromString(*it, ",");
2116 vector<string>::const_iterator const end = multiples.end();
2117 vector<string>::const_iterator itm = multiples.begin();
2118 // Do nothing if any multiple is already required
2119 for (; itm != end; ++itm) {
2120 if (!isRequired(*itm))
2123 features_.erase(it);
2124 it = features_.begin();