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