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