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