src/Font.cpp

   1 /**
   2  * \file src/Font.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Jean-Marc Lasgouttes
   8  * \author Angus Leeming
   9  * \author André Pönitz
  10  * \author Dekel Tsur
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "Font.h"
  18
  19 #include "BufferParams.h" // stateText
  20 #include "ColorSet.h"
  21 #include "Encoding.h"
  22 #include "Language.h"
  23 #include "LaTeXFeatures.h"
  24 #include "Lexer.h"
  25 #include "LyXRC.h"
  26 #include "output_latex.h"
  27 #include "OutputParams.h"
  28 #include "texstream.h"
  29
  30 #include "support/lassert.h"
  31 #include "support/convert.h"
  32 #include "support/debug.h"
  33 #include "support/gettext.h"
  34 #include "support/lstrings.h"
  35
  36 #include <cstring>
  37
  38 using namespace std;
  39 using namespace lyx::support;
  40
  41 namespace lyx {
  42
  43 //
  44 // Strings used to read and write .lyx format files
  45 //
  46 // These are defined in FontInfo.cpp
  47 extern char const * LyXFamilyNames[NUM_FAMILIES + 2];
  48 extern char const * LyXSeriesNames[NUM_SERIES + 2];
  49 extern char const * LyXShapeNames[NUM_SHAPE + 2];
  50 extern char const * LyXSizeNames[NUM_SIZE + 4];
  51 extern char const * LyXMiscNames[5];
  52 extern char const * GUIMiscNames[5];
  53
  54 namespace {
  55
  56 //
  57 // Strings used to write LaTeX files
  58 //
  59 char const * LaTeXFamilyNames[NUM_FAMILIES + 2] =
  60 { "textrm", "textsf", "texttt", "error1", "error2", "error3", "error4",
  61   "error5", "error6", "error7", "error8", "error9", "error10", "error11",
  62   "error12", "error13", "error14" };
  63
  64 char const * LaTeXSeriesNames[NUM_SERIES + 2] =
  65 { "textmd", "textbf", "error4", "error5" };
  66
  67 char const * LaTeXShapeNames[NUM_SHAPE + 2] =
  68 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  69
  70 char const * LaTeXSizeNames[NUM_SIZE + 4] =
  71 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  72   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  73
  74 } // namespace
  75
  76
  77 Font::Font(FontInfo bits, Language const * l)
  78         : bits_(bits), lang_(l), open_encoding_(false)
  79 {
  80         if (!lang_)
  81                 lang_ = default_language;
  82 }
  83
  84
  85 bool Font::isRightToLeft() const
  86 {
  87         return lang_->rightToLeft();
  88 }
  89
  90
  91 bool Font::isVisibleRightToLeft() const
  92 {
  93         return (lang_->rightToLeft() &&
  94                 bits_.number() != FONT_ON);
  95 }
  96
  97
  98 void Font::setLanguage(Language const * l)
  99 {
 100         lang_ = l;
 101 }
 102
 103
 104 /// Updates font settings according to request
 105 void Font::update(Font const & newfont,
 106                      Language const * document_language,
 107                      bool toggleall)
 108 {
 109         bits_.update(newfont.fontInfo(), toggleall);
 110
 111         if (newfont.language() == language() && toggleall)
 112                 if (language() == document_language)
 113                         setLanguage(default_language);
 114                 else
 115                         setLanguage(document_language);
 116         else if (newfont.language() == reset_language)
 117                 setLanguage(document_language);
 118         else if (newfont.language() != ignore_language)
 119                 setLanguage(newfont.language());
 120 }
 121
 122
 123 docstring const Font::stateText(BufferParams * params, bool const terse) const
 124 {
 125         odocstringstream os;
 126         os << bits_.stateText(terse);
 127         if ((!params || (language() != params->language))
 128             && (!terse || language() != ignore_language)) {
 129                 // reset_language is a null pointer!
 130                 os << bformat(_("Language: %1$s, "),
 131                               (language() == reset_language) ? _("Default")
 132                                                              : _(language()->display()));
 133         }
 134         if (bits_.number() != FONT_OFF)
 135                 os << "  " << bformat(_("Number %1$s"),
 136                               _(GUIMiscNames[bits_.number()]));
 137         return rtrim(os.str(), ", ");
 138 }
 139
 140
 141 // Returns size in latex format
 142 string const Font::latexSize() const
 143 {
 144         return LaTeXSizeNames[bits_.size()];
 145 }
 146
 147
 148 /// Writes the changes from this font to orgfont in .lyx format in file
 149 void Font::lyxWriteChanges(Font const & orgfont,
 150                               ostream & os) const
 151 {
 152         os << "\n";
 153         if (orgfont.fontInfo().family() != bits_.family())
 154                 os << "\\family " << LyXFamilyNames[bits_.family()] << "\n";
 155         if (orgfont.fontInfo().series() != bits_.series())
 156                 os << "\\series " << LyXSeriesNames[bits_.series()] << "\n";
 157         if (orgfont.fontInfo().shape() != bits_.shape())
 158                 os << "\\shape " << LyXShapeNames[bits_.shape()] << "\n";
 159         if (orgfont.fontInfo().size() != bits_.size())
 160                 os << "\\size " << LyXSizeNames[bits_.size()] << "\n";
 161         // FIXME: shall style be handled there? Probably not.
 162         if (orgfont.fontInfo().emph() != bits_.emph())
 163                 os << "\\emph " << LyXMiscNames[bits_.emph()] << "\n";
 164         if (orgfont.fontInfo().number() != bits_.number())
 165                 os << "\\numeric " << LyXMiscNames[bits_.number()] << "\n";
 166         if (orgfont.fontInfo().nospellcheck() != bits_.nospellcheck())
 167                 os << "\\nospellcheck " << LyXMiscNames[bits_.nospellcheck()] << "\n";
 168         if (orgfont.fontInfo().underbar() != bits_.underbar()) {
 169                 // This is only for backwards compatibility
 170                 switch (bits_.underbar()) {
 171                 case FONT_OFF:  os << "\\bar no\n"; break;
 172                 case FONT_ON:        os << "\\bar under\n"; break;
 173                 case FONT_TOGGLE:       lyxerr << "Font::lyxWriteFontChanges: "
 174                                         "FONT_TOGGLE should not appear here!"
 175                                        << endl;
 176                 break;
 177                 case FONT_INHERIT:   os << "\\bar default\n"; break;
 178                 case FONT_IGNORE:    lyxerr << "Font::lyxWriteFontChanges: "
 179                                         "IGNORE should not appear here!"
 180                                        << endl;
 181                 break;
 182                 }
 183         }
 184         if (orgfont.fontInfo().strikeout() != bits_.strikeout()) {
 185                 os << "\\strikeout " << LyXMiscNames[bits_.strikeout()] << "\n";
 186         }
 187         if (orgfont.fontInfo().xout() != bits_.xout()) {
 188                 os << "\\xout " << LyXMiscNames[bits_.xout()] << "\n";
 189         }
 190         if (orgfont.fontInfo().uuline() != bits_.uuline()) {
 191                 os << "\\uuline " << LyXMiscNames[bits_.uuline()] << "\n";
 192         }
 193         if (orgfont.fontInfo().uwave() != bits_.uwave()) {
 194                 os << "\\uwave " << LyXMiscNames[bits_.uwave()] << "\n";
 195         }
 196         if (orgfont.fontInfo().noun() != bits_.noun()) {
 197                 os << "\\noun " << LyXMiscNames[bits_.noun()] << "\n";
 198         }
 199         if (orgfont.fontInfo().color() != bits_.color())
 200                 os << "\\color " << lcolor.getLyXName(bits_.color()) << '\n';
 201         // FIXME: uncomment this when we support background.
 202         //if (orgfont.fontInfo().background() != bits_.background())
 203         //      os << "\\color " << lcolor.getLyXName(bits_.background()) << '\n';
 204         if (orgfont.language() != language() &&
 205             language() != latex_language) {
 206                 if (language())
 207                         os << "\\lang " << language()->lang() << "\n";
 208                 else
 209                         os << "\\lang unknown\n";
 210         }
 211 }
 212
 213
 214 /// Writes the head of the LaTeX needed to impose this font
 215 // Returns number of chars written.
 216 int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 217                                     OutputParams const & runparams,
 218                                     Font const & base,
 219                                     Font const & prev) const
 220 {
 221         bool env = false;
 222
 223         int count = 0;
 224
 225         // polyglossia or babel?
 226         if (runparams.use_polyglossia
 227             && language()->lang() != base.language()->lang()
 228             && language() != prev.language()) {
 229                 if (!language()->polyglossia().empty()) {
 230                         string tmp = "\\text" + language()->polyglossia();
 231                         if (!language()->polyglossiaOpts().empty()) {
 232                                 tmp += "[" + language()->polyglossiaOpts() + "]";
 233                                 if (runparams.use_hyperref && runparams.moving_arg)
 234                                         // We need to strip the command for
 235                                         // the pdf string, see #11813
 236                                         tmp = "\\texorpdfstring{" + tmp + "}{}";
 237                         }
 238                         tmp += "{";
 239                         os << from_ascii(tmp);
 240                         count += tmp.length();
 241                         pushLanguageName(language()->polyglossia(), true);
 242                 } else if (language()->encoding()->package() != Encoding::CJK) {
 243                         os << '{';
 244                         count += 1;
 245                 }
 246         } else if (language()->babel() != base.language()->babel() &&
 247             language() != prev.language()) {
 248                 if (language()->lang() == "farsi") {
 249                         os << "\\textFR{";
 250                         count += 8;
 251                 } else if (!isRightToLeft() &&
 252                             base.language()->lang() == "farsi") {
 253                         os << "\\textLR{";
 254                         count += 8;
 255                 } else if (language()->lang() == "arabic_arabi") {
 256                         os << "\\textAR{";
 257                         count += 8;
 258                 } else if (!isRightToLeft() &&
 259                                 base.language()->lang() == "arabic_arabi") {
 260                         os << "\\textLR{";
 261                         count += 8;
 262                 // currently the remaining RTL languages are arabic_arabtex and hebrew
 263                 } else if (isRightToLeft() != prev.isRightToLeft()) {
 264                         if (isRightToLeft()) {
 265                                 os << "\\R{";
 266                                 count += 3;
 267                         } else {
 268                                 os << "\\L{";
 269                                 count += 3;
 270                         }
 271                 } else if (!language()->babel().empty()) {
 272                         string const tmp =
 273                                 subst(lyxrc.language_command_local,
 274                                       "$$lang", language()->babel());
 275                         os << from_ascii(tmp);
 276                         count += tmp.length();
 277                         if (!lyxrc.language_command_end.empty())
 278                                 pushLanguageName(language()->babel(), true);
 279                 } else if (language()->encoding()->package() != Encoding::CJK) {
 280                         os << '{';
 281                         count += 1;
 282                 }
 283         }
 284
 285         if (language()->encoding()->package() == Encoding::CJK) {
 286                 pair<bool, int> const c = switchEncoding(os, bparams,
 287                                 runparams, *(language()->encoding()));
 288                 if (c.first) {
 289                         open_encoding_ = true;
 290                         count += c.second;
 291                         runparams.encoding = language()->encoding();
 292                 }
 293         }
 294
 295         FontInfo f = bits_;
 296         f.reduce(base.bits_);
 297         FontInfo p = bits_;
 298         p.reduce(prev.bits_);
 299
 300         if (f.family() != INHERIT_FAMILY) {
 301                 os << '\\'
 302                    << LaTeXFamilyNames[f.family()]
 303                    << '{';
 304                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 305                 env = true; //We have opened a new environment
 306         }
 307         if (f.series() != INHERIT_SERIES) {
 308                 os << '\\'
 309                    << LaTeXSeriesNames[f.series()]
 310                    << '{';
 311                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 312                 env = true; //We have opened a new environment
 313         }
 314         if (f.shape() != INHERIT_SHAPE) {
 315                 os << '\\'
 316                    << LaTeXShapeNames[f.shape()]
 317                    << '{';
 318                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 319                 env = true; //We have opened a new environment
 320         }
 321         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 322                 if (f.color() == Color_none && p.color() != Color_none) {
 323                         // Color none: Close previous color, if any
 324                         os << '}';
 325                         ++count;
 326                 } else if (f.color() != Color_none) {
 327                         os << "\\textcolor{"
 328                            << from_ascii(lcolor.getLaTeXName(f.color()))
 329                            << "}{";
 330                         count += lcolor.getLaTeXName(f.color()).length() + 13;
 331                 }
 332                 env = true; //We have opened a new environment
 333         }
 334         // FIXME: uncomment this when we support background.
 335         /*
 336         if (f.background() != Color_inherit && f.background() != Color_ignore) {
 337                 os << "\\textcolor{"
 338                    << from_ascii(lcolor.getLaTeXName(f.background()))
 339                    << "}{";
 340                 count += lcolor.getLaTeXName(f.background()).length() + 13;
 341                 env = true; //We have opened a new environment
 342         }
 343         */
 344         // If the current language is Hebrew, Arabic, or Farsi
 345         // the numbers are written Left-to-Right. ArabTeX package
 346         // and bidi (polyglossia with XeTeX) reorder the number automatically
 347         // but the packages used for Hebrew and Farsi (Arabi) do not.
 348         if (!runparams.useBidiPackage()
 349             && !runparams.pass_thru
 350             && bits_.number() == FONT_ON
 351             && prev.fontInfo().number() != FONT_ON
 352             && (language()->lang() == "hebrew"
 353                 || language()->lang() == "farsi"
 354                 || language()->lang() == "arabic_arabi")) {
 355                 if (runparams.use_polyglossia) {
 356                         // LuaTeX/luabidi
 357                         os << "\\LR{";
 358                         count += 5;
 359                 } else {
 360                         os << "{\\beginL ";
 361                         count += 9;
 362                 }
 363         }
 364         if (f.emph() == FONT_ON) {
 365                 os << "\\emph{";
 366                 count += 6;
 367                 env = true; //We have opened a new environment
 368         }
 369         // \noun{} is a LyX special macro
 370         if (f.noun() == FONT_ON) {
 371                 os << "\\noun{";
 372                 count += 6;
 373                 env = true; //We have opened a new environment
 374         }
 375         if (f.size() != INHERIT_SIZE) {
 376                 // If we didn't open an environment above, we open one here
 377                 if (!env) {
 378                         os << '{';
 379                         ++count;
 380                 }
 381                 os << '\\'
 382                    << LaTeXSizeNames[f.size()]
 383                    << "{}";
 384                 count += strlen(LaTeXSizeNames[f.size()]) + 3;
 385         }
 386         // The ulem commands need to be on the deepest nesting level
 387         // because ulem puts every nested group or macro in a box,
 388         // which prevents linebreaks (#8424, #8733)
 389         if (f.underbar() == FONT_ON) {
 390                 os << "\\uline{";
 391                 count += 10;
 392                 ++runparams.inulemcmd;
 393         }
 394         if (f.uuline() == FONT_ON) {
 395                 os << "\\uuline{";
 396                 count += 11;
 397                 ++runparams.inulemcmd;
 398         }
 399         if (f.strikeout() == FONT_ON) {
 400                 os << "\\sout{";
 401                 count += 9;
 402                 ++runparams.inulemcmd;
 403         }
 404         if (f.xout() == FONT_ON) {
 405                 os << "\\xout{";
 406                 count += 9;
 407                 ++runparams.inulemcmd;
 408         }
 409         if (f.uwave() == FONT_ON) {
 410                 if (runparams.inulemcmd) {
 411                         // needed with nested uwave in xout
 412                         // see https://tex.stackexchange.com/a/263042
 413                         os << "\\ULdepth=1000pt";
 414                         count += 15;
 415                 }
 416                 os << "\\uwave{";
 417                 count += 10;
 418                 ++runparams.inulemcmd;
 419         }
 420         return count;
 421 }
 422
 423
 424 /// Writes ending block of LaTeX needed to close use of this font
 425 // Returns number of chars written
 426 // This one corresponds to latexWriteStartChanges(). (Asger)
 427 int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
 428                                   OutputParams const & runparams,
 429                                   Font const & base,
 430                                   Font const & next,
 431                                   bool & needPar,
 432                                   bool const & closeLanguage) const
 433 {
 434         int count = 0;
 435         bool env = false;
 436
 437         // reduce the current font to changes against the base
 438         // font (of the layout). We use a temporary for this to
 439         // avoid changing this font instance, as that would break
 440         FontInfo f = bits_;
 441         f.reduce(base.bits_);
 442
 443         if (f.family() != INHERIT_FAMILY) {
 444                 os << '}';
 445                 ++count;
 446                 env = true; // Size change need not bother about closing env.
 447         }
 448         if (f.series() != INHERIT_SERIES) {
 449                 os << '}';
 450                 ++count;
 451                 env = true; // Size change need not bother about closing env.
 452         }
 453         if (f.shape() != INHERIT_SHAPE) {
 454                 os << '}';
 455                 ++count;
 456                 env = true; // Size change need not bother about closing env.
 457         }
 458         if (f.color() != Color_inherit && f.color() != Color_ignore && f.color() != Color_none) {
 459                 os << '}';
 460                 ++count;
 461                 env = true; // Size change need not bother about closing env.
 462         }
 463         if (f.emph() == FONT_ON) {
 464                 os << '}';
 465                 ++count;
 466                 env = true; // Size change need not bother about closing env.
 467         }
 468         if (f.noun() == FONT_ON) {
 469                 os << '}';
 470                 ++count;
 471                 env = true; // Size change need not bother about closing env.
 472         }
 473         if (f.size() != INHERIT_SIZE) {
 474                 // We only have to close if only size changed
 475                 if (!env) {
 476                         if (needPar && !closeLanguage) {
 477                                 os << "\\par";
 478                                 count += 4;
 479                                 needPar = false;
 480                         }
 481                         os << '}';
 482                         ++count;
 483                 }
 484         }
 485         if (f.underbar() == FONT_ON) {
 486                 os << '}';
 487                 ++count;
 488                 --runparams.inulemcmd;
 489         }
 490         if (f.strikeout() == FONT_ON) {
 491                 os << '}';
 492                 ++count;
 493                 --runparams.inulemcmd;
 494         }
 495         if (f.xout() == FONT_ON) {
 496                 os << '}';
 497                 ++count;
 498                 --runparams.inulemcmd;
 499         }
 500         if (f.uuline() == FONT_ON) {
 501                 os << '}';
 502                 ++count;
 503                 --runparams.inulemcmd;
 504         }
 505         if (f.uwave() == FONT_ON) {
 506                 os << '}';
 507                 ++count;
 508                 --runparams.inulemcmd;
 509         }
 510
 511         // If the current language is Hebrew, Arabic, or Farsi
 512         // the numbers are written Left-to-Right. ArabTeX package
 513         // and bidi (polyglossia with XeTeX) reorder the number automatically
 514         // but the packages used for Hebrew and Farsi (Arabi) do not.
 515         if (!runparams.useBidiPackage()
 516             && !runparams.pass_thru
 517             && bits_.number() == FONT_ON
 518             && next.fontInfo().number() != FONT_ON
 519             && (language()->lang() == "hebrew"
 520                 || language()->lang() == "farsi"
 521                 || language()->lang() == "arabic_arabi")) {
 522                 if (runparams.use_polyglossia) {
 523                         // LuaTeX/luabidi
 524                         os << "}";
 525                         count += 1;
 526                 } else {
 527                         os << "\\endL}";
 528                         count += 6;
 529                 }
 530         }
 531
 532         if (open_encoding_) {
 533                 // We need to close the encoding even if it does not change
 534                 // to do correct environment nesting
 535                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 536                 pair<bool, int> const c = switchEncoding(os.os(), bparams,
 537                                 runparams, *ascii);
 538                 LATTEST(c.first);
 539                 count += c.second;
 540                 runparams.encoding = ascii;
 541                 open_encoding_ = false;
 542         }
 543
 544         if (closeLanguage
 545             && language() != base.language() && language() != next.language()
 546             && (language()->encoding()->package() != Encoding::CJK)) {
 547                 os << '}';
 548                 ++count;
 549                 bool const using_begin_end =
 550                         runparams.use_polyglossia ||
 551                                 !lyxrc.language_command_end.empty();
 552                 if (using_begin_end)
 553                         popLanguageName();
 554         }
 555
 556         return count;
 557 }
 558
 559
 560 string Font::toString(bool const toggle) const
 561 {
 562         string const lang = (language() == reset_language)
 563                 ? "reset" : language()->lang();
 564
 565         ostringstream os;
 566         os << "family " << bits_.family() << '\n'
 567            << "series " << bits_.series() << '\n'
 568            << "shape " << bits_.shape() << '\n'
 569            << "size " << bits_.size() << '\n'
 570            << "emph " << bits_.emph() << '\n'
 571            << "underbar " << bits_.underbar() << '\n'
 572            << "strikeout " << bits_.strikeout() << '\n'
 573            << "xout " << bits_.xout() << '\n'
 574            << "uuline " << bits_.uuline() << '\n'
 575            << "uwave " << bits_.uwave() << '\n'
 576            << "noun " << bits_.noun() << '\n'
 577            << "number " << bits_.number() << '\n'
 578            << "nospellcheck " << bits_.nospellcheck() << '\n'
 579            << "color " << bits_.color() << '\n'
 580            << "language " << lang << '\n'
 581            << "toggleall " << convert<string>(toggle);
 582         return os.str();
 583 }
 584
 585
 586 bool Font::fromString(string const & data, bool & toggle)
 587 {
 588         istringstream is(data);
 589         Lexer lex;
 590         lex.setStream(is);
 591
 592         int nset = 0;
 593         while (lex.isOK()) {
 594                 string token;
 595                 if (lex.next())
 596                         token = lex.getString();
 597
 598                 if (token.empty() || !lex.next())
 599                         break;
 600
 601                 if (token == "family") {
 602                         int const next = lex.getInteger();
 603                         bits_.setFamily(FontFamily(next));
 604
 605                 } else if (token == "series") {
 606                         int const next = lex.getInteger();
 607                         bits_.setSeries(FontSeries(next));
 608
 609                 } else if (token == "shape") {
 610                         int const next = lex.getInteger();
 611                         bits_.setShape(FontShape(next));
 612
 613                 } else if (token == "size") {
 614                         int const next = lex.getInteger();
 615                         bits_.setSize(FontSize(next));
 616                 // FIXME: shall style be handled there? Probably not.
 617                 } else if (token == "emph" || token == "underbar"
 618                         || token == "noun" || token == "number"
 619                         || token == "uuline" || token == "uwave"
 620                         || token == "strikeout" || token == "xout"
 621                         || token == "nospellcheck") {
 622
 623                         int const next = lex.getInteger();
 624                         FontState const misc = FontState(next);
 625
 626                         if (token == "emph")
 627                                 bits_.setEmph(misc);
 628                         else if (token == "underbar")
 629                                 bits_.setUnderbar(misc);
 630                         else if (token == "strikeout")
 631                                 bits_.setStrikeout(misc);
 632                         else if (token == "xout")
 633                                 bits_.setXout(misc);
 634                         else if (token == "uuline")
 635                                 bits_.setUuline(misc);
 636                         else if (token == "uwave")
 637                                 bits_.setUwave(misc);
 638                         else if (token == "noun")
 639                                 bits_.setNoun(misc);
 640                         else if (token == "number")
 641                                 bits_.setNumber(misc);
 642                         else if (token == "nospellcheck")
 643                                 bits_.setNoSpellcheck(misc);
 644
 645                 } else if (token == "color") {
 646                         int const next = lex.getInteger();
 647                         bits_.setColor(ColorCode(next));
 648
 649                 /**
 650                 } else if (token == "background") {
 651                         int const next = lex.getInteger();
 652                         bits_.setBackground(ColorCode(next));
 653                 */
 654
 655                 } else if (token == "language") {
 656                         string const next = lex.getString();
 657                         setLanguage(languages.getLanguage(next));
 658
 659                 } else if (token == "toggleall") {
 660                         toggle = lex.getBool();
 661
 662                 } else {
 663                         // Unrecognised token
 664                         break;
 665                 }
 666
 667                 ++nset;
 668         }
 669         return (nset > 0);
 670 }
 671
 672
 673 void Font::validate(LaTeXFeatures & features) const
 674 {
 675         BufferParams const & bparams = features.bufferParams();
 676         Language const * doc_language = bparams.language;
 677
 678         if (bits_.noun() == FONT_ON) {
 679                 LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
 680                 features.require("noun");
 681                 LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText()));
 682         }
 683         if (bits_.underbar() == FONT_ON) {
 684                 LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
 685                 features.require("ulem");
 686                 LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText()));
 687         }
 688         if (bits_.strikeout() == FONT_ON) {
 689                 LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
 690                 features.require("ulem");
 691                 LYXERR(Debug::LATEX, "Strike out enabled. Font: " << to_utf8(stateText()));
 692         }
 693         if (bits_.xout() == FONT_ON) {
 694                 LYXERR(Debug::LATEX, "font.xout: " << bits_.xout());
 695                 features.require("ulem");
 696                 LYXERR(Debug::LATEX, "Cross out enabled. Font: " << to_utf8(stateText()));
 697         }
 698         if (bits_.uuline() == FONT_ON) {
 699                 LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
 700                 features.require("ulem");
 701                 LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText()));
 702         }
 703         if (bits_.uwave() == FONT_ON) {
 704                 LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
 705                 features.require("ulem");
 706                 LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText()));
 707         }
 708         switch (bits_.color()) {
 709                 case Color_none:
 710                 case Color_inherit:
 711                 case Color_ignore:
 712                         // probably we should put here all interface colors used for
 713                         // font displaying! For now I just add this ones I know of (Jug)
 714                 case Color_latex:
 715                 case Color_notelabel:
 716                         break;
 717                 case Color_brown:
 718                 case Color_darkgray:
 719                 case Color_gray:
 720                 case Color_lightgray:
 721                 case Color_lime:
 722                 case Color_olive:
 723                 case Color_orange:
 724                 case Color_pink:
 725                 case Color_purple:
 726                 case Color_teal:
 727                 case Color_violet:
 728                         features.require("xcolor");
 729                         break;
 730                 default:
 731                         features.require("color");
 732                         LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText()));
 733         }
 734
 735         // FIXME: Do something for background and soul package?
 736
 737         if (((features.usePolyglossia() && lang_->polyglossia() != doc_language->polyglossia())
 738              || (features.useBabel() && lang_->babel() != doc_language->babel())
 739              || (doc_language->encoding()->package() == Encoding::CJK && lang_ != doc_language))
 740             && lang_ != ignore_language
 741             && lang_ != latex_language)
 742         {
 743                 features.useLanguage(lang_);
 744                 LYXERR(Debug::LATEX, "Found language " << lang_->lang());
 745         }
 746 }
 747
 748
 749 ostream & operator<<(ostream & os, FontState fms)
 750 {
 751         return os << int(fms);
 752 }
 753
 754
 755 ostream & operator<<(ostream & os, FontInfo const & f)
 756 {
 757         return os << "font:"
 758                 << " family " << f.family()
 759                 << " series " << f.series()
 760                 << " shape " << f.shape()
 761                 << " size " << f.size()
 762                 << " style " << f.style()
 763                 << " color " << f.color()
 764                 // FIXME: uncomment this when we support background.
 765                 //<< " background " << f.background()
 766                 << " emph " << f.emph()
 767                 << " underbar " << f.underbar()
 768                 << " strikeout " << f.strikeout()
 769                 << " xout " << f.xout()
 770                 << " uuline " << f.uuline()
 771                 << " uwave " << f.uwave()
 772                 << " noun " << f.noun()
 773                 << " number " << f.number()
 774                 << " nospellcheck " << f.nospellcheck();
 775 }
 776
 777
 778 ostream & operator<<(ostream & os, Font const & font)
 779 {
 780         return os << font.bits_
 781                 << " lang: " << (font.lang_ ? font.lang_->lang() : nullptr);
 782 }
 783
 784
 785 } // namespace lyx