src/mathed/MathFactory.cpp

   1 /**
   2  * \file MathFactory.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author André Pönitz
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "MathFactory.h"
  14
  15 #include "InsetMathAMSArray.h"
  16 #include "InsetMathArray.h"
  17 #include "InsetMathBoldSymbol.h"
  18 #include "InsetMathBox.h"
  19 #include "InsetMathCancel.h"
  20 #include "InsetMathCancelto.h"
  21 #include "InsetMathCases.h"
  22 #include "InsetMathClass.h"
  23 #include "InsetMathColor.h"
  24 #include "InsetMathDecoration.h"
  25 #include "InsetMathDots.h"
  26 #include "InsetMathEnsureMath.h"
  27 #include "InsetMathFont.h"
  28 #include "InsetMathFontOld.h"
  29 #include "InsetMathFrac.h"
  30 #include "InsetMathKern.h"
  31 #include "InsetMathLefteqn.h"
  32 #include "InsetMathOverset.h"
  33 #include "InsetMathPhantom.h"
  34 #include "InsetMathRef.h"
  35 #include "InsetMathRoot.h"
  36 #include "InsetMathSideset.h"
  37 #include "InsetMathSize.h"
  38 #include "InsetMathSpace.h"
  39 #include "InsetMathSpecialChar.h"
  40 #include "InsetMathSplit.h"
  41 #include "InsetMathSqrt.h"
  42 #include "InsetMathStackrel.h"
  43 #include "InsetMathSubstack.h"
  44 #include "InsetMathSymbol.h"
  45 #include "InsetMathTabular.h"
  46 #include "InsetMathTextsize.h"
  47 #include "InsetMathUnderset.h"
  48 #include "InsetMathUnknown.h"
  49 #include "InsetMathHull.h"
  50 #include "InsetMathXArrow.h"
  51 #include "InsetMathXYMatrix.h"
  52 #include "InsetMathDiagram.h"
  53 #include "MacroTable.h"
  54 #include "InsetMathMacro.h"
  55 #include "InsetMathMacroArgument.h"
  56 #include "MathParser.h"
  57 #include "MathStream.h"
  58 #include "MathSupport.h"
  59
  60 #include "insets/InsetCommand.h"
  61 #include "insets/InsetSpace.h"
  62
  63 #include "support/debug.h"
  64 #include "support/docstream.h"
  65 #include "support/FileName.h"
  66 #include "support/filetools.h" // LibFileSearch
  67 #include "support/lstrings.h"
  68 #include "support/textutils.h"
  69
  70 #include "frontends/FontLoader.h"
  71
  72 #include "Buffer.h"
  73 #include "BufferParams.h"
  74 #include "Encoding.h"
  75 #include "FontInfo.h"
  76 #include "LyX.h" // use_gui
  77
  78 #include <iomanip>
  79
  80 using namespace std;
  81 using namespace lyx::support;
  82
  83 namespace lyx {
  84
  85 bool has_math_fonts;
  86
  87
  88 namespace {
  89
  90 MathWordList theMathWordList;
  91
  92
  93 bool isMathFontAvailable(string & name)
  94 {
  95         if (!use_gui)
  96                 return false;
  97
  98         FontInfo f;
  99         augmentFont(f, name);
 100
 101         // Do we have the font proper?
 102         if (theFontLoader().available(f))
 103                 return true;
 104
 105         // can we fake it?
 106         if (name == "eufrak") {
 107                 name = "lyxfakefrak";
 108                 return true;
 109         }
 110
 111         LYXERR(Debug::MATHED,
 112                 "font " << name << " not available and I can't fake it");
 113         return false;
 114 }
 115
 116
 117 bool canBeDisplayed(char_type c)
 118 {
 119         if (!use_gui)
 120                 return true;
 121         return theFontLoader().canBeDisplayed(c);
 122 }
 123
 124
 125 bool isUnicodeSymbolAvailable(docstring const & name, char_type & c)
 126 {
 127         docstring cmd(from_ascii("\\") + name);
 128         bool is_combining;
 129         bool termination;
 130         c = Encodings::fromLaTeXCommand(cmd, Encodings::MATH_CMD,
 131                                         is_combining, termination);
 132         if (c == 0 && name == "varOmega") {
 133                 // fallback for bug 7954, unicodesymbols does not list
 134                 // \\varOmega because of requirements, but this might change
 135                 cmd = from_ascii("\\mathit{\\Omega}");
 136                 c = Encodings::fromLaTeXCommand(cmd, Encodings::MATH_CMD,
 137                                                 is_combining, termination);
 138         }
 139         return c != 0 && !is_combining;
 140 }
 141
 142
 143 void initSymbols()
 144 {
 145         FileName const filename = libFileSearch(string(), "symbols");
 146         LYXERR(Debug::MATHED, "read symbols from " << filename);
 147         if (filename.empty()) {
 148                 lyxerr << "Could not find symbols file" << endl;
 149                 return;
 150         }
 151
 152         ifstream fs(filename.toFilesystemEncoding().c_str());
 153         // limit the size of strings we read to avoid memory problems
 154         fs >> setw(65636);
 155         string line;
 156         bool skip = false;
 157         while (getline(fs, line)) {
 158                 int charid     = 0;
 159                 int dsp_charid = 0;
 160                 int fallbackid = 0;
 161                 if (line.empty() || line[0] == '#')
 162                         continue;
 163
 164                 // special case of iffont/else/endif
 165                 if (line.size() >= 7 && line.substr(0, 6) == "iffont") {
 166                         istringstream is(line);
 167                         // limit the size of strings we read to avoid memory problems
 168                         is >> setw(65636);
 169                         string tmp;
 170                         is >> tmp;
 171                         is >> tmp;
 172                         skip = !isMathFontAvailable(tmp);
 173                         continue;
 174                 } else if (line.size() >= 4 && line.substr(0, 4) == "else") {
 175                         skip = !skip;
 176                         continue;
 177                 } else if (line.size() >= 5 && line.substr(0, 5) == "endif") {
 178                         skip = false;
 179                         continue;
 180                 } else if (skip)
 181                         continue;
 182
 183                 // special case of pre-defined macros
 184                 if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
 185                         //lyxerr << "macro definition: '" << line << '\'' << endl;
 186                         // syntax: Either
 187                         // \def\macroname{definition}
 188                         // or
 189                         // \def\macroname{definition} requires
 190                         // or
 191                         // \def\macroname{definition} extra xmlname requires
 192                         istringstream is(line);
 193                         string macro;
 194                         string required;
 195                         string extra;
 196                         string xmlname;
 197                         bool hidden = false;
 198                         is >> setw(65536) >> macro >> required;
 199                         if ((is >> xmlname)) {
 200                                 extra = required;
 201                                 if (!(is >> required))
 202                                         required = "";
 203                         } else
 204                                 xmlname = "";
 205                         MacroTable::iterator it = MacroTable::globalMacros().insert(
 206                                         nullptr, from_utf8(macro));
 207                         if (!extra.empty() || !xmlname.empty() || !required.empty()) {
 208                                 MathWordList::iterator wit = theMathWordList.find(it->first);
 209                                 if (wit != theMathWordList.end())
 210                                         LYXERR(Debug::MATHED, "readSymbols: inset "
 211                                                 << to_utf8(it->first) << " already exists.");
 212                                 else {
 213                                         latexkeys tmp;
 214                                         tmp.inset = "macro";
 215                                         tmp.name = it->first;
 216                                         tmp.extra = from_utf8(extra);
 217                                         tmp.xmlname = from_utf8(xmlname);
 218                                         if (required == "hiddensymbol") {
 219                                                 required = "";
 220                                                 tmp.hidden = hidden = true;
 221                                         } else
 222                                                 tmp.required = required;
 223                                         theMathWordList[it->first] = tmp;
 224                                         wit = theMathWordList.find(it->first);
 225                                         it->second.setSymbol(&(wit->second));
 226                                 }
 227                         }
 228                         // If you change the following output, please adjust
 229                         // development/tools/generate_symbols_images.py.
 230                         LYXERR(Debug::MATHED, "read symbol '" << to_utf8(it->first)
 231                             << "  inset: macro"
 232                             << "  draw: 0"
 233                             << "  extra: " << extra
 234                             << "  xml: " << xmlname
 235                                 << "  requires: " << required
 236                                 << "  hidden: " << hidden << '\'');
 237                         continue;
 238                 }
 239
 240                 idocstringstream is(from_utf8(line));
 241                 latexkeys tmp;
 242                 docstring help;
 243                 is >> tmp.name >> help;
 244                 tmp.inset = to_ascii(help);
 245                 if (isFontName(tmp.inset)) {
 246                         is >> help >> fallbackid >> tmp.extra >> tmp.xmlname;
 247                         docstring cid, dsp_cid;
 248                         idocstringstream is2(subst(help, '|', ' '));
 249                         is2 >> charid >> dsp_charid;
 250                 } else
 251                         is >> tmp.extra;
 252                 // requires is optional
 253                 if (is) {
 254                         if ((is >> help)) {
 255                                 // backward compatibility
 256                                 if (help == "esintoramsmath")
 257                                         tmp.required = "esint|amsmath";
 258                                 else
 259                                         tmp.required = to_ascii(help);
 260                         }
 261                 } else {
 262                         LYXERR(Debug::MATHED, "skipping line '" << line << "'\n"
 263                                 << to_utf8(tmp.name) << ' ' << tmp.inset << ' '
 264                                 << to_utf8(tmp.extra));
 265                         continue;
 266                 }
 267
 268                 if (isFontName(tmp.inset)) {
 269                         // tmp.inset _is_ the fontname here.
 270                         // create fallbacks if necessary
 271
 272                         // store requirements as long as we can
 273                         if (tmp.required.empty()) {
 274                                 if (tmp.inset == "msa" || tmp.inset == "msb")
 275                                         tmp.required = "amssymb";
 276                                 else if (tmp.inset == "wasy")
 277                                         tmp.required = "wasysym";
 278                                 else if (tmp.inset == "mathscr")
 279                                         tmp.required = "mathrsfs";
 280                                 else if (tmp.inset == "mathds")
 281                                         tmp.required = "dsfont";
 282                         }
 283
 284                         // symbol font is not available sometimes
 285                         string symbol_font = "lyxsymbol";
 286                         char_type unicodesymbol = 0;
 287
 288                         if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra == "special") {
 289                                 LYXERR(Debug::MATHED, "symbol abuse for " << to_utf8(tmp.name));
 290                                 tmp.draw = tmp.name;
 291                         } else if (isMathFontAvailable(tmp.inset) && canBeDisplayed(charid)) {
 292                                 LYXERR(Debug::MATHED, "symbol available for " << to_utf8(tmp.name));
 293                                 tmp.draw.push_back(char_type(charid));
 294                                 if (dsp_charid && canBeDisplayed(dsp_charid)) {
 295                                         LYXERR(Debug::MATHED, "large symbol available for " << to_utf8(tmp.name));
 296                                         tmp.dsp_draw.push_back(char_type(dsp_charid));
 297                                 }
 298                         } else if (fallbackid && isMathFontAvailable(symbol_font) &&
 299                                    canBeDisplayed(fallbackid)) {
 300                                 if (tmp.inset == "cmex")
 301                                         tmp.inset = "lyxsymbol";
 302                                 else
 303                                         tmp.inset = "lyxboldsymbol";
 304                                 LYXERR(Debug::MATHED, "symbol fallback for " << to_utf8(tmp.name));
 305                                 tmp.draw.push_back(char_type(fallbackid));
 306                         } else if (isUnicodeSymbolAvailable(tmp.name, unicodesymbol)) {
 307                                 LYXERR(Debug::MATHED, "unicode fallback for " << to_utf8(tmp.name));
 308                                 tmp.inset = "mathnormal";
 309                                 tmp.draw.push_back(unicodesymbol);
 310                         } else {
 311                                 LYXERR(Debug::MATHED, "faking " << to_utf8(tmp.name));
 312                                 tmp.draw = tmp.name;
 313                                 tmp.inset = "lyxtex";
 314                         }
 315                 } else {
 316                         // it's a proper inset
 317                         LYXERR(Debug::MATHED, "inset " << tmp.inset
 318                                               << " used for " << to_utf8(tmp.name));
 319                 }
 320
 321                 if (tmp.required == "hiddensymbol")
 322                 {
 323                         tmp.required = "";
 324                         tmp.hidden = true;
 325                 }
 326
 327                 if (theMathWordList.find(tmp.name) != theMathWordList.end())
 328                         LYXERR(Debug::MATHED, "readSymbols: inset " << to_utf8(tmp.name)
 329                                 << " already exists.");
 330                 else
 331                         theMathWordList[tmp.name] = tmp;
 332
 333                 // If you change the following output, please adjust
 334                 // development/tools/generate_symbols_images.py.
 335                 LYXERR(Debug::MATHED, "read symbol '" << to_utf8(tmp.name)
 336                         << "  inset: " << tmp.inset
 337                         << "  draw: " << int(tmp.draw.empty() ? 0 : tmp.draw[0])
 338                         << "  extra: " << to_utf8(tmp.extra)
 339                         << "  xml: " << to_utf8(tmp.xmlname)
 340                         << "  requires: " << tmp.required
 341                         << "  hidden: " << tmp.hidden << '\'');
 342         }
 343         string tmp = "cmm";
 344         string tmp2 = "cmsy";
 345         has_math_fonts = isMathFontAvailable(tmp) && isMathFontAvailable(tmp2);
 346 }
 347
 348
 349 bool isSpecialChar(docstring const & name)
 350 {
 351         if (name.size() != 1)
 352                 return  name == "textasciicircum" || name == "mathcircumflex" ||
 353                         name == "textasciitilde"  || name == "textbackslash";
 354
 355         char_type const c = name.at(0);
 356         return  c == '{' || c == '}' || c == '&' || c == '$' ||
 357                 c == '#' || c == '%' || c == '_';
 358 }
 359
 360
 361 } // namespace
 362
 363 MathWordList const & mathedWordList()
 364 {
 365         return theMathWordList;
 366 }
 367
 368
 369 void initMath()
 370 {
 371         static bool initialized = false;
 372         if (!initialized) {
 373                 initialized = true;
 374                 initParser();
 375                 initSymbols();
 376         }
 377 }
 378
 379
 380 bool ensureMath(TeXMathStream & os, bool needs_mathmode, bool macro,
 381                 bool textmode_macro)
 382 {
 383         bool brace = os.pendingBrace();
 384         os.pendingBrace(false);
 385         if (!os.latex())
 386                 return brace;
 387         if (os.textMode() && needs_mathmode) {
 388                 if (brace) {
 389                         // close \lyxmathsym
 390                         os << '}';
 391                         brace = false;
 392                 } else {
 393                         os << "\\ensuremath{";
 394                         brace = true;
 395                 }
 396                 os.textMode(false);
 397         } else if (macro && textmode_macro && !os.textMode()) {
 398                 if (brace) {
 399                         // close \ensuremath
 400                         os << '}';
 401                         brace = false;
 402                 } else {
 403                         os << "\\lyxmathsym{";
 404                         brace = true;
 405                 }
 406                 os.textMode(true);
 407         } else if (macro && brace && !needs_mathmode && !textmode_macro) {
 408                 // This is a user defined macro, not a InsetMathMacro, so we
 409                 // cannot be sure what mode is needed. We leave it in the
 410                 // same environment it was entered by closing either \lyxmathsym
 411                 // or \ensuremath, whichever was opened.
 412                 os << '}';
 413                 brace = false;
 414                 os.textMode(!os.textMode());
 415         }
 416         return brace;
 417 }
 418
 419
 420 int ensureMode(TeXMathStream & os, InsetMath::mode_type mode,
 421                bool locked, bool ascii)
 422 {
 423         bool textmode = mode == InsetMath::TEXT_MODE;
 424         if (os.latex() && textmode && os.pendingBrace()) {
 425                 os.os() << '}';
 426                 os.pendingBrace(false);
 427                 os.pendingSpace(false);
 428                 os.textMode(true);
 429         }
 430         int oldmodes = os.textMode() ? 0x01 : 0;
 431         os.textMode(textmode);
 432         oldmodes |= os.lockedMode() ? 0x02 : 0;
 433         os.lockedMode(locked);
 434         oldmodes |= os.asciiOnly() ? 0x04 : 0;
 435         os.asciiOnly(ascii);
 436         return oldmodes;
 437 }
 438
 439
 440 latexkeys const * in_word_set(docstring const & str)
 441 {
 442         MathWordList::iterator it = theMathWordList.find(str);
 443         if (it == theMathWordList.end())
 444                 return nullptr;
 445         if (it->second.inset == "macro")
 446                 return nullptr;
 447         return &(it->second);
 448 }
 449
 450
 451 MathAtom createInsetMath(char const * const s, Buffer * buf)
 452 {
 453         return createInsetMath(from_utf8(s), buf);
 454 }
 455
 456
 457 MathAtom createInsetMath(docstring const & s, Buffer * buf)
 458 {
 459         //lyxerr << "creating inset with name: '" << to_utf8(s) << '\'' << endl;
 460         if ((s == "ce" || s == "cf") && buf
 461             && buf->params().use_package("mhchem") == BufferParams::package_off)
 462                 return MathAtom(new InsetMathMacro(buf, s));
 463
 464         latexkeys const * l = in_word_set(s);
 465         if (l) {
 466                 string const & inset = l->inset;
 467                 //lyxerr << " found inset: '" << inset << '\'' << endl;
 468                 if (inset == "ref")
 469                         return MathAtom(new InsetMathRef(buf, l->name));
 470                 if (inset == "overset")
 471                         return MathAtom(new InsetMathOverset(buf));
 472                 if (inset == "underset")
 473                         return MathAtom(new InsetMathUnderset(buf));
 474                 if (inset == "decoration")
 475                         return MathAtom(new InsetMathDecoration(buf, l));
 476                 if (inset == "space")
 477                         return MathAtom(new InsetMathSpace(to_ascii(l->name), ""));
 478                 if (inset == "class")
 479                         return MathAtom(new InsetMathClass(buf, string_to_class(s)));
 480                 if (inset == "dots")
 481                         return MathAtom(new InsetMathDots(l));
 482                 if (inset == "mbox")
 483                         return MathAtom(new InsetMathBox(buf, l->name));
 484 //              if (inset == "fbox")
 485 //                      return MathAtom(new InsetMathFBox(l));
 486                 if (inset == "style")
 487                         return MathAtom(new InsetMathSize(buf, l));
 488                 if (inset == "font")
 489                         return MathAtom(new InsetMathFont(buf, l));
 490                 if (inset == "oldfont")
 491                         return MathAtom(new InsetMathFontOld(buf, l));
 492                 if (inset == "textsize")
 493                         return MathAtom(new InsetMathTextsize(buf, l));
 494                 if (inset == "matrix")
 495                         return MathAtom(new InsetMathAMSArray(buf, s));
 496                 if (inset == "split")
 497                         return MathAtom(new InsetMathSplit(buf, s));
 498                 if (inset == "big")
 499                         // we can't create a InsetMathBig, since the argument
 500                         // is missing.
 501                         return MathAtom(new InsetMathUnknown(s));
 502                 return MathAtom(new InsetMathSymbol(l));
 503         }
 504
 505         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 506                 return MathAtom(new InsetMathMacroArgument(s[1] - '0'));
 507         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 508                         && s[2] >= '1' && s[2] <= '9')
 509                 return MathAtom(new InsetMathMacroArgument(s[2] - '0'));
 510         if (s == "boxed")
 511                 return MathAtom(new InsetMathBoxed(buf));
 512         if (s == "fbox")
 513                 return MathAtom(new InsetMathFBox(buf));
 514         if (s == "framebox")
 515                 return MathAtom(new InsetMathMakebox(buf, true));
 516         if (s == "makebox")
 517                 return MathAtom(new InsetMathMakebox(buf, false));
 518         if (s.substr(0, 8) == "xymatrix") {
 519                 char spacing_code = '\0';
 520                 Length spacing;
 521                 bool equal_spacing = false;
 522                 size_t const len = s.length();
 523                 size_t i = 8;
 524                 if (i < len && s[i] == '@') {
 525                         ++i;
 526                         if (i < len && s[i] == '!') {
 527                                 equal_spacing = true;
 528                                 ++i;
 529                                 if (i < len) {
 530                                         switch (s[i]) {
 531                                         case '0':
 532                                         case 'R':
 533                                         case 'C':
 534                                                 spacing_code = static_cast<char>(s[i]);
 535                                         }
 536                                 }
 537                         } else if (i < len) {
 538                                 switch (s[i]) {
 539                                 case 'R':
 540                                 case 'C':
 541                                 case 'M':
 542                                 case 'W':
 543                                 case 'H':
 544                                 case 'L':
 545                                         spacing_code = static_cast<char>(s[i]);
 546                                         ++i;
 547                                         break;
 548                                 }
 549                                 if (i < len && s[i] == '=') {
 550                                         ++i;
 551                                         spacing = Length(to_ascii(s.substr(i)));
 552                                 }
 553                         }
 554                 }
 555                 return MathAtom(new InsetMathXYMatrix(buf, spacing, spacing_code,
 556                         equal_spacing));
 557         }
 558
 559         if (s == "Diagram")
 560                 return MathAtom(new InsetMathDiagram(buf));
 561         if (s == "xrightarrow" || s == "xleftarrow" ||
 562                 s == "xhookrightarrow" || s == "xhookleftarrow" ||
 563                 s == "xRightarrow" || s == "xLeftarrow" ||
 564                 s == "xleftrightarrow" || s == "xLeftrightarrow" ||
 565                 s == "xrightharpoondown" || s == "xrightharpoonup" ||
 566                 s == "xleftharpoondown" || s == "xleftharpoonup" ||
 567                 s == "xleftrightharpoons" || s == "xrightleftharpoons" ||
 568                 s == "xmapsto")
 569                 return MathAtom(new InsetMathXArrow(buf, s));
 570         if (s == "split" || s == "alignedat")
 571                 return MathAtom(new InsetMathSplit(buf, s));
 572         if (s == "cases")
 573                 return MathAtom(new InsetMathCases(buf));
 574         if (s == "substack")
 575                 return MathAtom(new InsetMathSubstack(buf));
 576         if (s == "subarray" || s == "array")
 577                 return MathAtom(new InsetMathArray(buf, s, 1, 1));
 578         if (s == "sqrt")
 579                 return MathAtom(new InsetMathSqrt(buf));
 580         if (s == "root")
 581                 return MathAtom(new InsetMathRoot(buf));
 582         if (s == "tabular")
 583                 return MathAtom(new InsetMathTabular(buf, s, 1, 1));
 584         if (s == "stackrel")
 585                 return MathAtom(new InsetMathStackrel(buf, false));
 586         // This string value is only for math toolbar use, no LaTeX name
 587         if (s == "stackrelthree")
 588                 return MathAtom(new InsetMathStackrel(buf, true));
 589         if (s == "binom")
 590                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BINOM));
 591         if (s == "dbinom")
 592                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::DBINOM));
 593         if (s == "tbinom")
 594                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::TBINOM));
 595         if (s == "choose")
 596                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::CHOOSE));
 597         if (s == "brace")
 598                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACE));
 599         if (s == "brack")
 600                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACK));
 601         if (s == "frac")
 602                 return MathAtom(new InsetMathFrac(buf));
 603         if (s == "cfrac")
 604                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRAC));
 605         if (s == "dfrac")
 606                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::DFRAC));
 607         if (s == "tfrac")
 608                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::TFRAC));
 609         if (s == "over")
 610                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::OVER));
 611         if (s == "nicefrac")
 612                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::NICEFRAC));
 613         if (s == "unitfrac")
 614                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC));
 615         // These string values are only for math toolbar use, no LaTeX names
 616         if (s == "unitfracthree")
 617                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC, 3));
 618         if (s == "unitone")
 619                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT, 1));
 620         if (s == "unittwo")
 621                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT));
 622         if (s == "cfracleft")
 623                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACLEFT));
 624         if (s == "cfracright")
 625                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACRIGHT));
 626         if (s == "case") // TODO: only if class is aastex(6|62)
 627                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::AASTEX_CASE));
 628         //if (s == "infer")
 629         //      return MathAtom(new MathInferInset);
 630         if (s == "atop")
 631                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::ATOP));
 632         if (s == "lefteqn")
 633                 return MathAtom(new InsetMathLefteqn(buf));
 634         if (s == "boldsymbol")
 635                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::AMS_BOLD));
 636         if (s == "bm")
 637                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_BOLD));
 638         if (s == "heavysymbol" || s == "hm")
 639                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_HEAVY));
 640         if (s == "color" || s == "normalcolor")
 641                 return MathAtom(new InsetMathColor(buf, true));
 642         if (s == "textcolor")
 643                 return MathAtom(new InsetMathColor(buf, false));
 644         if (s == "hphantom")
 645                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::hphantom));
 646         if (s == "phantom")
 647                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::phantom));
 648         if (s == "vphantom")
 649                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::vphantom));
 650         if (s == "cancel")
 651                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::cancel));
 652         if (s == "bcancel")
 653                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::bcancel));
 654         if (s == "xcancel")
 655                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::xcancel));
 656         if (s == "cancelto")
 657                 return MathAtom(new InsetMathCancelto(buf));
 658         if (s == "smash")
 659                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smash));
 660         // The following 2 string values are only for math toolbar use, no LaTeX names
 661         if (s == "smashb")
 662                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smashb));
 663         if (s == "smasht")
 664                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smasht));
 665         if (s == "mathclap")
 666                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathclap));
 667         if (s == "mathllap")
 668                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathllap));
 669         if (s == "mathrlap")
 670                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathrlap));
 671         if (s == "ensuremath")
 672                 return MathAtom(new InsetMathEnsureMath(buf));
 673         if (s == "sideset")
 674                 return MathAtom(new InsetMathSideset(buf, true, true));
 675         // The following 3 string values are only for math toolbar use, no LaTeX names
 676         if (s == "sidesetr")
 677                 return MathAtom(new InsetMathSideset(buf, false, true));
 678         if (s == "sidesetl")
 679                 return MathAtom(new InsetMathSideset(buf, true, false));
 680         if (s == "sidesetn")
 681                 return MathAtom(new InsetMathSideset(buf, false, false));
 682         if (isSpecialChar(s))
 683                 return MathAtom(new InsetMathSpecialChar(s));
 684         if (s == " ")
 685                 return MathAtom(new InsetMathSpace(" ", ""));
 686         if (s == "regexp")
 687                 return MathAtom(new InsetMathHull(buf, hullRegexp));
 688
 689         return MathAtom(new InsetMathMacro(buf, s));
 690 }
 691
 692
 693 bool createInsetMath_fromDialogStr(docstring const & str, MathData & ar)
 694 {
 695         // An example str:
 696         // "ref LatexCommand ref\nreference \"sec:Title\"\n\\end_inset\n\n";
 697         docstring name;
 698         docstring body = split(str, name, ' ');
 699
 700         if (name == "ref") {
 701                 InsetCommandParams icp(REF_CODE);
 702                 // FIXME UNICODE
 703                 InsetCommand::string2params(to_utf8(str), icp);
 704                 Encoding const * const utf8 = encodings.fromLyXName("utf8");
 705                 OutputParams op(utf8);
 706                 mathed_parse_cell(ar, icp.getCommand(op));
 707         } else if (name == "mathspace") {
 708                 InsetSpaceParams isp(true);
 709                 InsetSpace::string2params(to_utf8(str), isp);
 710                 InsetSpace is(isp);
 711                 odocstringstream ods;
 712                 otexstream os(ods);
 713                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 714                 OutputParams op(ascii);
 715                 is.latex(os, op);
 716                 mathed_parse_cell(ar, ods.str());
 717                 if (ar.size() == 2) {
 718                         // remove "{}"
 719                         if (ar[1].nucleus()->asBraceInset())
 720                                 ar.pop_back();
 721                 }
 722         } else
 723                 return false;
 724
 725         if (ar.size() != 1)
 726                 return false;
 727
 728         return ar[0].nucleus();
 729 }
 730
 731
 732 } // namespace lyx