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 "MathMacro.h"
  54 #include "MathMacroArgument.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 xmlname requires
 190                         istringstream is(line);
 191                         string macro;
 192                         string requires;
 193                         string extra;
 194                         string xmlname;
 195                         bool hidden = false;
 196                         is >> setw(65536) >> macro >> requires;
 197                         if ((is >> xmlname)) {
 198                                 extra = requires;
 199                                 if (!(is >> requires))
 200                                         requires = "";
 201                         } else
 202                                 xmlname = "";
 203                         MacroTable::iterator it = MacroTable::globalMacros().insert(
 204                                         0, from_utf8(macro));
 205                         if (!extra.empty() || !xmlname.empty() || !requires.empty()) {
 206                                 MathWordList::iterator wit = theMathWordList.find(it->first);
 207                                 if (wit != theMathWordList.end())
 208                                         LYXERR(Debug::MATHED, "readSymbols: inset "
 209                                                 << to_utf8(it->first) << " already exists.");
 210                                 else {
 211                                         latexkeys tmp;
 212                                         tmp.inset = "macro";
 213                                         tmp.name = it->first;
 214                                         tmp.extra = from_utf8(extra);
 215                                         tmp.xmlname = from_utf8(xmlname);
 216                                         if (requires == "hiddensymbol") {
 217                                                 requires = "";
 218                                                 tmp.hidden = hidden = true;
 219                                         } else
 220                                                 tmp.requires = requires;
 221                                         theMathWordList[it->first] = tmp;
 222                                         wit = theMathWordList.find(it->first);
 223                                         it->second.setSymbol(&(wit->second));
 224                                 }
 225                         }
 226                         // If you change the following output, please adjust
 227                         // development/tools/generate_symbols_images.py.
 228                         LYXERR(Debug::MATHED, "read symbol '" << to_utf8(it->first)
 229                                 << "  inset: macro"
 230                                 << "  draw: 0"
 231                                 << "  extra: " << extra
 232                                 << "  xml: " << xmlname
 233                                 << "  requires: " << requires
 234                                 << "  hidden: " << hidden << '\'');
 235                         continue;
 236                 }
 237
 238                 idocstringstream is(from_utf8(line));
 239                 latexkeys tmp;
 240                 docstring help;
 241                 is >> tmp.name >> help;
 242                 tmp.inset = to_ascii(help);
 243                 if (isFontName(tmp.inset))
 244                         is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
 245                 else
 246                         is >> tmp.extra;
 247                 // requires is optional
 248                 if (is) {
 249                         if ((is >> help)) {
 250                                 // backward compatibility
 251                                 if (help == "esintoramsmath")
 252                                         tmp.requires = "esint|amsmath";
 253                                 else
 254                                         tmp.requires = to_ascii(help);
 255                         }
 256                 } else {
 257                         LYXERR(Debug::MATHED, "skipping line '" << line << "'\n"
 258                                 << to_utf8(tmp.name) << ' ' << tmp.inset << ' '
 259                                 << to_utf8(tmp.extra));
 260                         continue;
 261                 }
 262
 263                 if (isFontName(tmp.inset)) {
 264                         // tmp.inset _is_ the fontname here.
 265                         // create fallbacks if necessary
 266
 267                         // store requirements as long as we can
 268                         if (tmp.requires.empty()) {
 269                                 if (tmp.inset == "msa" || tmp.inset == "msb")
 270                                         tmp.requires = "amssymb";
 271                                 else if (tmp.inset == "wasy")
 272                                         tmp.requires = "wasysym";
 273                                 else if (tmp.inset == "mathscr")
 274                                         tmp.requires = "mathrsfs";
 275                         }
 276
 277                         // symbol font is not available sometimes
 278                         string symbol_font = "lyxsymbol";
 279                         char_type unicodesymbol = 0;
 280
 281                         if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra == "special") {
 282                                 LYXERR(Debug::MATHED, "symbol abuse for " << to_utf8(tmp.name));
 283                                 tmp.draw = tmp.name;
 284                         } else if (isMathFontAvailable(tmp.inset) && canBeDisplayed(charid)) {
 285                                 LYXERR(Debug::MATHED, "symbol available for " << to_utf8(tmp.name));
 286                                 tmp.draw.push_back(char_type(charid));
 287                         } else if (fallbackid && isMathFontAvailable(symbol_font) &&
 288                                    canBeDisplayed(fallbackid)) {
 289                                 if (tmp.inset == "cmex")
 290                                         tmp.inset = "lyxsymbol";
 291                                 else
 292                                         tmp.inset = "lyxboldsymbol";
 293                                 LYXERR(Debug::MATHED, "symbol fallback for " << to_utf8(tmp.name));
 294                                 tmp.draw.push_back(char_type(fallbackid));
 295                         } else if (isUnicodeSymbolAvailable(tmp.name, unicodesymbol)) {
 296                                 LYXERR(Debug::MATHED, "unicode fallback for " << to_utf8(tmp.name));
 297                                 tmp.inset = "mathnormal";
 298                                 tmp.draw.push_back(unicodesymbol);
 299                         } else {
 300                                 LYXERR(Debug::MATHED, "faking " << to_utf8(tmp.name));
 301                                 tmp.draw = tmp.name;
 302                                 tmp.inset = "lyxtex";
 303                         }
 304                 } else {
 305                         // it's a proper inset
 306                         LYXERR(Debug::MATHED, "inset " << tmp.inset
 307                                               << " used for " << to_utf8(tmp.name));
 308                 }
 309
 310                 if (tmp.requires == "hiddensymbol")
 311                 {
 312                         tmp.requires = "";
 313                         tmp.hidden = true;
 314                 }
 315
 316                 if (theMathWordList.find(tmp.name) != theMathWordList.end())
 317                         LYXERR(Debug::MATHED, "readSymbols: inset " << to_utf8(tmp.name)
 318                                 << " already exists.");
 319                 else
 320                         theMathWordList[tmp.name] = tmp;
 321
 322                 // If you change the following output, please adjust
 323                 // development/tools/generate_symbols_images.py.
 324                 LYXERR(Debug::MATHED, "read symbol '" << to_utf8(tmp.name)
 325                         << "  inset: " << tmp.inset
 326                         << "  draw: " << int(tmp.draw.empty() ? 0 : tmp.draw[0])
 327                         << "  extra: " << to_utf8(tmp.extra)
 328                         << "  xml: " << to_utf8(tmp.xmlname)
 329                         << "  requires: " << tmp.requires
 330                         << "  hidden: " << tmp.hidden << '\'');
 331         }
 332         string tmp = "cmm";
 333         string tmp2 = "cmsy";
 334         has_math_fonts = isMathFontAvailable(tmp) && isMathFontAvailable(tmp2);
 335 }
 336
 337
 338 bool isSpecialChar(docstring const & name)
 339 {
 340         if (name.size() != 1)
 341                 return  name == "textasciicircum" || name == "mathcircumflex" ||
 342                         name == "textasciitilde"  || name == "textbackslash";
 343
 344         char_type const c = name.at(0);
 345         return  c == '{' || c == '}' || c == '&' || c == '$' ||
 346                 c == '#' || c == '%' || c == '_';
 347 }
 348
 349
 350 } // namespace anon
 351
 352 MathWordList const & mathedWordList()
 353 {
 354         return theMathWordList;
 355 }
 356
 357
 358 void initMath()
 359 {
 360         static bool initialized = false;
 361         if (!initialized) {
 362                 initialized = true;
 363                 initParser();
 364                 initSymbols();
 365         }
 366 }
 367
 368
 369 bool ensureMath(WriteStream & os, bool needs_mathmode, bool macro,
 370                 bool textmode_macro)
 371 {
 372         bool brace = os.pendingBrace();
 373         os.pendingBrace(false);
 374         if (!os.latex())
 375                 return brace;
 376         if (os.textMode() && needs_mathmode) {
 377                 if (brace) {
 378                         // close \lyxmathsym
 379                         os << '}';
 380                         brace = false;
 381                 } else {
 382                         os << "\\ensuremath{";
 383                         brace = true;
 384                 }
 385                 os.textMode(false);
 386         } else if (macro && textmode_macro && !os.textMode()) {
 387                 if (brace) {
 388                         // close \ensuremath
 389                         os << '}';
 390                         brace = false;
 391                 } else {
 392                         os << "\\lyxmathsym{";
 393                         brace = true;
 394                 }
 395                 os.textMode(true);
 396         } else if (macro && brace && !needs_mathmode && !textmode_macro) {
 397                 // This is a user defined macro, not a MathMacro, so we
 398                 // cannot be sure what mode is needed. We leave it in the
 399                 // same environment it was entered by closing either \lyxmathsym
 400                 // or \ensuremath, whichever was opened.
 401                 os << '}';
 402                 brace = false;
 403                 os.textMode(!os.textMode());
 404         }
 405         return brace;
 406 }
 407
 408
 409 int ensureMode(WriteStream & os, InsetMath::mode_type mode,
 410                 bool locked, bool ascii)
 411 {
 412         bool textmode = mode == InsetMath::TEXT_MODE;
 413         if (os.latex() && textmode && os.pendingBrace()) {
 414                 os.os() << '}';
 415                 os.pendingBrace(false);
 416                 os.pendingSpace(false);
 417                 os.textMode(true);
 418         }
 419         int oldmodes = os.textMode() ? 0x01 : 0;
 420         os.textMode(textmode);
 421         oldmodes |= os.lockedMode() ? 0x02 : 0;
 422         os.lockedMode(locked);
 423         oldmodes |= os.asciiOnly() ? 0x04 : 0;
 424         os.asciiOnly(ascii);
 425         return oldmodes;
 426 }
 427
 428
 429 latexkeys const * in_word_set(docstring const & str)
 430 {
 431         MathWordList::iterator it = theMathWordList.find(str);
 432         if (it == theMathWordList.end())
 433                 return 0;
 434         if (it->second.inset == "macro")
 435                 return 0;
 436         return &(it->second);
 437 }
 438
 439
 440 MathAtom createInsetMath(char const * const s, Buffer * buf)
 441 {
 442         return createInsetMath(from_utf8(s), buf);
 443 }
 444
 445
 446 MathAtom createInsetMath(docstring const & s, Buffer * buf)
 447 {
 448         //lyxerr << "creating inset with name: '" << to_utf8(s) << '\'' << endl;
 449         if ((s == "ce" || s == "cf") && buf
 450             && buf->params().use_package("mhchem") == BufferParams::package_off)
 451                 return MathAtom(new MathMacro(buf, s));
 452
 453         latexkeys const * l = in_word_set(s);
 454         if (l) {
 455                 string const & inset = l->inset;
 456                 //lyxerr << " found inset: '" << inset << '\'' << endl;
 457                 if (inset == "ref")
 458                         return MathAtom(new InsetMathRef(buf, l->name));
 459                 if (inset == "overset")
 460                         return MathAtom(new InsetMathOverset(buf));
 461                 if (inset == "underset")
 462                         return MathAtom(new InsetMathUnderset(buf));
 463                 if (inset == "decoration")
 464                         return MathAtom(new InsetMathDecoration(buf, l));
 465                 if (inset == "space")
 466                         return MathAtom(new InsetMathSpace(to_ascii(l->name), ""));
 467                 if (inset == "class")
 468                         return MathAtom(new InsetMathClass(buf, string_to_class(s)));
 469                 if (inset == "dots")
 470                         return MathAtom(new InsetMathDots(l));
 471                 if (inset == "mbox")
 472                         return MathAtom(new InsetMathBox(buf, l->name));
 473 //              if (inset == "fbox")
 474 //                      return MathAtom(new InsetMathFBox(l));
 475                 if (inset == "style")
 476                         return MathAtom(new InsetMathSize(buf, l));
 477                 if (inset == "font")
 478                         return MathAtom(new InsetMathFont(buf, l));
 479                 if (inset == "oldfont")
 480                         return MathAtom(new InsetMathFontOld(buf, l));
 481                 if (inset == "matrix")
 482                         return MathAtom(new InsetMathAMSArray(buf, s));
 483                 if (inset == "split")
 484                         return MathAtom(new InsetMathSplit(buf, s));
 485                 if (inset == "big")
 486                         // we can't create a InsetMathBig, since the argument
 487                         // is missing.
 488                         return MathAtom(new InsetMathUnknown(s));
 489                 return MathAtom(new InsetMathSymbol(l));
 490         }
 491
 492         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 493                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 494         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 495                         && s[2] >= '1' && s[2] <= '9')
 496                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 497         if (s == "boxed")
 498                 return MathAtom(new InsetMathBoxed(buf));
 499         if (s == "fbox")
 500                 return MathAtom(new InsetMathFBox(buf));
 501         if (s == "framebox")
 502                 return MathAtom(new InsetMathMakebox(buf, true));
 503         if (s == "makebox")
 504                 return MathAtom(new InsetMathMakebox(buf, false));
 505         if (s.substr(0, 8) == "xymatrix") {
 506                 char spacing_code = '\0';
 507                 Length spacing;
 508                 bool equal_spacing = false;
 509                 size_t const len = s.length();
 510                 size_t i = 8;
 511                 if (i < len && s[i] == '@') {
 512                         ++i;
 513                         if (i < len && s[i] == '!') {
 514                                 equal_spacing = true;
 515                                 ++i;
 516                                 if (i < len) {
 517                                         switch (s[i]) {
 518                                         case '0':
 519                                         case 'R':
 520                                         case 'C':
 521                                                 spacing_code = static_cast<char>(s[i]);
 522                                         }
 523                                 }
 524                         } else if (i < len) {
 525                                 switch (s[i]) {
 526                                 case 'R':
 527                                 case 'C':
 528                                 case 'M':
 529                                 case 'W':
 530                                 case 'H':
 531                                 case 'L':
 532                                         spacing_code = static_cast<char>(s[i]);
 533                                         ++i;
 534                                         break;
 535                                 }
 536                                 if (i < len && s[i] == '=') {
 537                                         ++i;
 538                                         spacing = Length(to_ascii(s.substr(i)));
 539                                 }
 540                         }
 541                 }
 542                 return MathAtom(new InsetMathXYMatrix(buf, spacing, spacing_code,
 543                         equal_spacing));
 544         }
 545
 546         if (s == "Diagram")
 547                 return MathAtom(new InsetMathDiagram(buf));
 548         if (s == "xrightarrow" || s == "xleftarrow" ||
 549                 s == "xhookrightarrow" || s == "xhookleftarrow" ||
 550                 s == "xRightarrow" || s == "xLeftarrow" ||
 551                 s == "xleftrightarrow" || s == "xLeftrightarrow" ||
 552                 s == "xrightharpoondown" || s == "xrightharpoonup" ||
 553                 s == "xleftharpoondown" || s == "xleftharpoonup" ||
 554                 s == "xleftrightharpoons" || s == "xrightleftharpoons" ||
 555                 s == "xmapsto")
 556                 return MathAtom(new InsetMathXArrow(buf, s));
 557         if (s == "split" || s == "alignedat")
 558                 return MathAtom(new InsetMathSplit(buf, s));
 559         if (s == "cases")
 560                 return MathAtom(new InsetMathCases(buf));
 561         if (s == "substack")
 562                 return MathAtom(new InsetMathSubstack(buf));
 563         if (s == "subarray" || s == "array")
 564                 return MathAtom(new InsetMathArray(buf, s, 1, 1));
 565         if (s == "sqrt")
 566                 return MathAtom(new InsetMathSqrt(buf));
 567         if (s == "root")
 568                 return MathAtom(new InsetMathRoot(buf));
 569         if (s == "tabular")
 570                 return MathAtom(new InsetMathTabular(buf, s, 1, 1));
 571         if (s == "stackrel")
 572                 return MathAtom(new InsetMathStackrel(buf, false));
 573         // This string value is only for math toolbar use, no LaTeX name
 574         if (s == "stackrelthree")
 575                 return MathAtom(new InsetMathStackrel(buf, true));
 576         if (s == "binom")
 577                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BINOM));
 578         if (s == "dbinom")
 579                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::DBINOM));
 580         if (s == "tbinom")
 581                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::TBINOM));
 582         if (s == "choose")
 583                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::CHOOSE));
 584         if (s == "brace")
 585                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACE));
 586         if (s == "brack")
 587                 return MathAtom(new InsetMathBinom(buf, InsetMathBinom::BRACK));
 588         if (s == "frac")
 589                 return MathAtom(new InsetMathFrac(buf));
 590         if (s == "cfrac")
 591                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRAC));
 592         if (s == "dfrac")
 593                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::DFRAC));
 594         if (s == "tfrac")
 595                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::TFRAC));
 596         if (s == "over")
 597                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::OVER));
 598         if (s == "nicefrac")
 599                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::NICEFRAC));
 600         if (s == "unitfrac")
 601                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC));
 602         // These string values are only for math toolbar use, no LaTeX names
 603         if (s == "unitfracthree")
 604                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNITFRAC, 3));
 605         if (s == "unitone")
 606                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT, 1));
 607         if (s == "unittwo")
 608                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::UNIT));
 609         if (s == "cfracleft")
 610                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACLEFT));
 611         if (s == "cfracright")
 612                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACRIGHT));
 613         //if (s == "infer")
 614         //      return MathAtom(new MathInferInset);
 615         if (s == "atop")
 616                 return MathAtom(new InsetMathFrac(buf, InsetMathFrac::ATOP));
 617         if (s == "lefteqn")
 618                 return MathAtom(new InsetMathLefteqn(buf));
 619         if (s == "boldsymbol")
 620                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::AMS_BOLD));
 621         if (s == "bm")
 622                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_BOLD));
 623         if (s == "heavysymbol" || s == "hm")
 624                 return MathAtom(new InsetMathBoldSymbol(buf, InsetMathBoldSymbol::BM_HEAVY));
 625         if (s == "color" || s == "normalcolor")
 626                 return MathAtom(new InsetMathColor(buf, true));
 627         if (s == "textcolor")
 628                 return MathAtom(new InsetMathColor(buf, false));
 629         if (s == "hphantom")
 630                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::hphantom));
 631         if (s == "phantom")
 632                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::phantom));
 633         if (s == "vphantom")
 634                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::vphantom));
 635         if (s == "cancel")
 636                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::cancel));
 637         if (s == "bcancel")
 638                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::bcancel));
 639         if (s == "xcancel")
 640                 return MathAtom(new InsetMathCancel(buf, InsetMathCancel::xcancel));
 641         if (s == "cancelto")
 642                 return MathAtom(new InsetMathCancelto(buf));
 643         if (s == "smash")
 644                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smash));
 645         // The following 2 string values are only for math toolbar use, no LaTeX names
 646         if (s == "smashb")
 647                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smashb));
 648         if (s == "smasht")
 649                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::smasht));
 650         if (s == "mathclap")
 651                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathclap));
 652         if (s == "mathllap")
 653                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathllap));
 654         if (s == "mathrlap")
 655                 return MathAtom(new InsetMathPhantom(buf, InsetMathPhantom::mathrlap));
 656         if (s == "ensuremath")
 657                 return MathAtom(new InsetMathEnsureMath(buf));
 658         if (s == "sideset")
 659                 return MathAtom(new InsetMathSideset(buf, true, true));
 660         // The following 3 string values are only for math toolbar use, no LaTeX names
 661         if (s == "sidesetr")
 662                 return MathAtom(new InsetMathSideset(buf, false, true));
 663         if (s == "sidesetl")
 664                 return MathAtom(new InsetMathSideset(buf, true, false));
 665         if (s == "sidesetn")
 666                 return MathAtom(new InsetMathSideset(buf, false, false));
 667         if (isSpecialChar(s))
 668                 return MathAtom(new InsetMathSpecialChar(s));
 669         if (s == " ")
 670                 return MathAtom(new InsetMathSpace(" ", ""));
 671         if (s == "regexp")
 672                 return MathAtom(new InsetMathHull(buf, hullRegexp));
 673
 674         return MathAtom(new MathMacro(buf, s));
 675 }
 676
 677
 678 bool createInsetMath_fromDialogStr(docstring const & str, MathData & ar)
 679 {
 680         // An example str:
 681         // "ref LatexCommand ref\nreference \"sec:Title\"\n\\end_inset\n\n";
 682         docstring name;
 683         docstring body = split(str, name, ' ');
 684
 685         if (name == "ref") {
 686                 InsetCommandParams icp(REF_CODE);
 687                 // FIXME UNICODE
 688                 InsetCommand::string2params(to_utf8(str), icp);
 689                 Encoding const * const utf8 = encodings.fromLyXName("utf8");
 690                 OutputParams op(utf8);
 691                 mathed_parse_cell(ar, icp.getCommand(op));
 692         } else if (name == "mathspace") {
 693                 InsetSpaceParams isp(true);
 694                 InsetSpace::string2params(to_utf8(str), isp);
 695                 InsetSpace is(isp);
 696                 odocstringstream ods;
 697                 otexstream os(ods);
 698                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 699                 OutputParams op(ascii);
 700                 is.latex(os, op);
 701                 mathed_parse_cell(ar, ods.str());
 702                 if (ar.size() == 2) {
 703                         // remove "{}"
 704                         if (ar[1].nucleus()->asBraceInset())
 705                                 ar.pop_back();
 706                 }
 707         } else
 708                 return false;
 709
 710         if (ar.size() != 1)
 711                 return false;
 712
 713         return ar[0].nucleus();
 714 }
 715
 716
 717 bool isAsciiOrMathAlpha(char_type c)
 718 {
 719         return isASCII(c) || Encodings::isMathAlpha(c);
 720 }
 721
 722
 723 } // namespace lyx