src/mathed/math_factory.C

   1 #include <config.h>
   2
   3 #include "math_parser.h"
   4 #include "math_arrayinset.h"
   5 #include "math_amsarrayinset.h"
   6 #include "math_binominset.h"
   7 #include "math_boxinset.h"
   8 #include "math_casesinset.h"
   9 #include "math_decorationinset.h"
  10 #include "math_dotsinset.h"
  11 #include "math_fboxinset.h"
  12 #include "math_fontinset.h"
  13 #include "math_fracinset.h"
  14 #include "math_kerninset.h"
  15 #include "math_lefteqninset.h"
  16 #include "math_macro.h"
  17 #include "math_macrotable.h"
  18 #include "math_macroarg.h"
  19 #include "math_notinset.h"
  20 #include "math_rootinset.h"
  21 #include "math_sizeinset.h"
  22 #include "math_spaceinset.h"
  23 #include "math_splitinset.h"
  24 #include "math_sqrtinset.h"
  25 #include "math_stackrelinset.h"
  26 #include "math_substackinset.h"
  27 #include "math_symbolinset.h"
  28 #include "math_undersetinset.h"
  29 #include "math_unknowninset.h"
  30 #include "math_xarrowinset.h"
  31 #include "math_xymatrixinset.h"
  32 #include "math_xyarrowinset.h"
  33
  34 #include "ref_inset.h"
  35
  36 #include "math_metricsinfo.h"
  37 #include "debug.h"
  38 #include "math_support.h"
  39 #include "Lsstream.h"
  40 #include "support/filetools.h" // LibFileSearch
  41 #include "frontends/font_loader.h"
  42
  43 #include <map>
  44 #include <fstream>
  45
  46
  47 namespace {
  48
  49 // file scope
  50 typedef std::map<string, latexkeys> WordList;
  51 WordList theWordList;
  52
  53
  54 struct key_type {
  55         ///
  56         string name;
  57         ///
  58         string inset;
  59         ///
  60         string extra;
  61 };
  62
  63
  64 key_type wordlist_array[] =
  65 {
  66         {"!",  "space", ""},
  67         {",",  "space", ""},
  68         {":",  "space", ""},
  69         {";",  "space", ""},
  70         {"Vmatrix",  "matrix", ""},
  71         {"acute",  "decoration", ""},
  72         {"bar",  "decoration", ""},
  73         {"begin",  "begin", ""},
  74         {"bf",  "oldfont", ""},
  75         {"bmatrix",  "matrix", ""},
  76         {"acute",  "decoration", ""},
  77         {"breve",  "decoration", ""},
  78         {"cal",  "oldfont", ""},
  79         {"cdots",  "dots", ""},
  80         {"check",  "decoration", ""},
  81         {"ddot",  "decoration", ""},
  82         {"dddot",  "decoration", ""},
  83         {"ddots",  "dots", ""},
  84         {"displaystyle",  "style", ""},
  85         {"dot",  "decoration", ""},
  86         {"dotsb",  "dots", ""},
  87         {"dotsc",  "dots", ""},
  88         {"dotsi",  "dots", ""},
  89         {"dotsm",  "dots", ""},
  90         {"dotso",  "dots", ""},
  91         {"end",  "end", ""},
  92         {"fbox",  "fbox", ""},
  93         {"frak",  "font", ""},
  94         {"grave",  "decoration", ""},
  95         {"hat",  "decoration", ""},
  96         {"it",  "oldfont", ""},
  97         {"label",  "label", ""},
  98         {"ldots",  "dots", ""},
  99         {"left",  "left", ""},
 100         {"limits",  "limit", ""},
 101         {"lyxbox",  "box", ""},
 102         {"lyxnegspace",  "space", ""},
 103         {"lyxposspace",  "space", ""},
 104         {"mathbb",  "font", ""},
 105         {"mathbf",  "font", ""},
 106         {"mathcal",  "font", ""},
 107         {"mathfrak",  "font", ""},
 108         {"mathit",  "font", ""},
 109         {"mathnormal",  "font", ""},
 110         {"mathring",  "decoration", ""},
 111         {"mathrm",  "font", ""},
 112         {"mathsf",  "font", ""},
 113         {"mathtt",  "font", ""},
 114         {"matrix",  "matrix", ""},
 115         {"mbox",  "box", ""},
 116         {"newcommand",  "newcommand", ""},
 117         {"nolimits",  "limit", ""},
 118         {"nonumber",  "nonum", ""},
 119         {"overbrace",  "decoration", ""},
 120         {"overleftarrow",  "decoration", ""},
 121         {"overline",  "decoration", ""},
 122         {"overrightarrow",  "decoration", ""},
 123         {"overleftrightarrow", "decoration", ""},
 124         {"pmatrix",  "matrix", ""},
 125         {"protect",  "protect", ""},
 126         {"qquad",  "space", ""},
 127         {"quad",  "space", ""},
 128         {"right",  "right", ""},
 129         {"rm",  "oldfont", ""},
 130         {"scriptscriptstyle",  "style", ""},
 131         {"scriptstyle",  "style", ""},
 132         {"text",    "font", "mathtext"},
 133         {"textbf",  "font", "mathtext"},
 134         {"textit",  "font", "mathtext"},
 135         {"textmd",  "font", "mathtext"},
 136         {"textrm",  "font", "mathtext"},
 137         {"textsl",  "font", "mathtext"},
 138         {"textup",  "font", "mathtext"},
 139         {"textstyle",  "style", ""},
 140         {"tilde",  "decoration", ""},
 141         {"tt",  "oldfont", ""},
 142         {"underbar",  "decoration", ""},
 143         {"underbrace",  "decoration", ""},
 144         {"underleftarrow", "decoration", ""},
 145         {"underline",  "decoration", ""},
 146         {"underrightarrow", "decoration", ""},
 147         {"underleftrightarrow", "decoration", ""},
 148         {"underset",  "underset", ""},
 149         {"vdots",  "dots", ""},
 150         {"vec",  "decoration", ""},
 151         {"vmatrix",  "matrix", ""},
 152         {"widehat",  "decoration", ""},
 153         {"widetilde",  "decoration", ""}
 154 };
 155
 156
 157 bool math_font_available(string & name)
 158 {
 159         LyXFont f;
 160         augmentFont(f, name);
 161
 162         // Do we have the font proper?
 163         if (fontloader.available(f))
 164                 return true;
 165
 166         // can we fake it?
 167         if (name == "eufrak") {
 168                 name = "lyxfakefrak";
 169                 return true;
 170         }
 171
 172         lyxerr[Debug::MATHED] << "font " << name << " not available and I can't fake it\n";
 173         return false;
 174 }
 175
 176
 177 void readSymbols(string const & filename)
 178 {
 179         lyxerr[Debug::MATHED] << "read symbols from " << filename << "\n";
 180         std::ifstream fs(filename.c_str());
 181         while (fs) {
 182                 int charid     = 0;
 183                 int fallbackid = 0;
 184                 latexkeys tmp;
 185                 string line;
 186                 getline(fs, line);
 187                 istringstream is(line);
 188                 is      >> tmp.name
 189                                 >> tmp.inset
 190                                 >> charid
 191                                 >> fallbackid
 192                                 >> tmp.extra
 193                                 >> tmp.xmlname;
 194                 if (!is)
 195                         continue;
 196
 197                 // tmp.inset _is_ the fontname here.
 198                 // create fallbacks if necessary
 199                 if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra=="special") {
 200                         lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 201                         tmp.draw = tmp.name;
 202                 } else if (math_font_available(tmp.inset)) {
 203                         lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 204                         tmp.draw += char(charid);
 205                 } else if (fallbackid) {
 206                         if (tmp.inset == "cmex")
 207                                 tmp.inset  = "lyxsymbol";
 208                         else
 209                                 tmp.inset  = "lyxboldsymbol";
 210                         lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 211                         tmp.draw += char(fallbackid);
 212                 } else {
 213                         lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 214                         tmp.draw = tmp.name;
 215                         tmp.inset = "lyxtex";
 216                 }
 217
 218                 if (theWordList.find(tmp.name) != theWordList.end())
 219                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 220                                << " already exists.\n";
 221                 else
 222                         theWordList[tmp.name] = tmp;
 223                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 224                                         <<  "  inset: " << tmp.inset
 225                                         <<  "  draw: " << int(tmp.draw[0])
 226                                         <<  "  extra: " << tmp.extra
 227                                         << "'\n";
 228         }
 229 }
 230
 231
 232 void initSymbols()
 233 {
 234         unsigned const n = sizeof(wordlist_array) / sizeof(wordlist_array[0]);
 235         for (key_type * p = wordlist_array; p != wordlist_array + n; ++p) {
 236                 latexkeys tmp;
 237                 tmp.name  = p->name;
 238                 tmp.inset = p->inset;
 239                 tmp.draw  = p->name;
 240                 theWordList[p->name] = tmp;
 241         }
 242
 243         lyxerr[Debug::MATHED] << "reading symbols file\n";
 244         string const file = LibFileSearch(string(), "symbols");
 245         if (file.empty())
 246                 lyxerr << "Could not find symbols file\n";
 247         else
 248                 readSymbols(file);
 249 }
 250
 251
 252 } // namespace anon
 253
 254
 255 latexkeys const * in_word_set(string const & str)
 256 {
 257         static bool initialized = false;
 258
 259         if (!initialized) {
 260                 initSymbols();
 261                 initialized = true;
 262         }
 263
 264         WordList::iterator it = theWordList.find(str);
 265         //lyxerr << "looking up '" << str << "' found: "
 266         // << (it != theWordList.end()) << "\n";
 267         return (it != theWordList.end()) ? &(it->second) : 0;
 268 }
 269
 270
 271 MathAtom createMathInset(string const & s)
 272 {
 273         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 274         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 275                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 276
 277         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 278                         && s[2] >= '1' && s[2] <= '9')
 279                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 280         if (s == "kern")
 281                 return MathAtom(new MathKernInset);
 282         if (s == "xymatrix")
 283                 return MathAtom(new MathXYMatrixInset);
 284         if (s == "xrightarrow" || s == "xleftarrow")
 285                 return MathAtom(new MathXArrowInset(s));
 286         if (s == "split" || s == "gathered" || s == "aligned")
 287                 return MathAtom(new MathSplitInset(s));
 288         if (s == "cases")
 289                 return MathAtom(new MathCasesInset);
 290         if (s == "substack")
 291                 return MathAtom(new MathSubstackInset);
 292         if (s == "subarray" || s == "array")
 293                 return MathAtom(new MathArrayInset(s, 1, 1));
 294         if (s == "sqrt")
 295                 return MathAtom(new MathSqrtInset);
 296         if (s == "root")
 297                 return MathAtom(new MathRootInset);
 298         if (s == "stack")
 299                 return MathAtom(new MathStackrelInset);
 300         if (s == "binom" || s == "choose")
 301                 return MathAtom(new MathBinomInset(s == "choose"));
 302         if (s == "over" || s == "frac")
 303                 return MathAtom(new MathFracInset);
 304         if (s == "atop")
 305                 return MathAtom(new MathFracInset(true));
 306         if (s == "not")
 307                 return MathAtom(new MathNotInset);
 308         if (s == "lefteqn")
 309                 return MathAtom(new MathLefteqnInset);
 310         if (s == "ref")
 311                 return MathAtom(new RefInset);
 312
 313
 314         latexkeys const * l = in_word_set(s);
 315         if (l) {
 316                 string const & inset = l->inset;
 317                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 318                 if (inset == "underset")
 319                         return MathAtom(new MathUndersetInset);
 320                 if (inset == "decoration")
 321                         return MathAtom(new MathDecorationInset(l->name));
 322                 if (inset == "space")
 323                         return MathAtom(new MathSpaceInset(l->name));
 324                 if (inset == "dots")
 325                         return MathAtom(new MathDotsInset(l->name));
 326                 if (inset == "box")
 327                         return MathAtom(new MathBoxInset(l->name));
 328                 if (inset == "fbox")
 329                         return MathAtom(new MathFboxInset);
 330                 if (inset == "style")
 331                         return MathAtom(new MathSizeInset(l));
 332                 if (inset == "font")
 333                         return MathAtom(new MathFontInset(l->name));
 334                 if (inset == "oldfont")
 335                         return MathAtom(new MathFontInset(l->name));
 336                 if (inset == "matrix")
 337                         return MathAtom(new MathAMSArrayInset(s));
 338                 return MathAtom(new MathSymbolInset(l));
 339         }
 340
 341         if (MathMacroTable::has(s))
 342                 return MathAtom(new MathMacro(s));
 343
 344         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 345         return MathAtom(new MathUnknownInset(s));
 346 }