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         //{"(",  "begin", ""},
  68         //{")",  "end", ""},
  69         {",",  "space", ""},
  70         {":",  "space", ""},
  71         {";",  "space", ""},
  72         //{"[",  "begin", ""},
  73         //{"]",  "end", ""},
  74         {"Vmatrix",  "matrix", ""},
  75         {"acute",  "decoration", ""},
  76         {"bar",  "decoration", ""},
  77         {"begin",  "begin", ""},
  78         {"bf",  "oldfont", ""},
  79         {"bmatrix",  "matrix", ""},
  80         {"acute",  "decoration", ""},
  81         {"breve",  "decoration", ""},
  82         {"cal",  "oldfont", ""},
  83         {"cdots",  "dots", ""},
  84         {"check",  "decoration", ""},
  85         {"ddot",  "decoration", ""},
  86         {"dddot",  "decoration", ""},
  87         {"ddots",  "dots", ""},
  88         {"displaystyle",  "style", ""},
  89         {"dot",  "decoration", ""},
  90         {"dotsb",  "dots", ""},
  91         {"dotsc",  "dots", ""},
  92         {"dotsi",  "dots", ""},
  93         {"dotsm",  "dots", ""},
  94         {"dotso",  "dots", ""},
  95         {"end",  "end", ""},
  96         {"fbox",  "fbox", ""},
  97         {"frak",  "font", ""},
  98         {"grave",  "decoration", ""},
  99         {"hat",  "decoration", ""},
 100         {"it",  "oldfont", ""},
 101         {"label",  "label", ""},
 102         {"ldots",  "dots", ""},
 103         {"left",  "left", ""},
 104         {"limits",  "limit", ""},
 105         {"lyxbox",  "box", ""},
 106         {"lyxnegspace",  "space", ""},
 107         {"lyxposspace",  "space", ""},
 108         {"mathbb",  "font", ""},
 109         {"mathbf",  "font", ""},
 110         {"mathcal",  "font", ""},
 111         {"mathfrak",  "font", ""},
 112         {"mathit",  "font", ""},
 113         {"mathnormal",  "font", ""},
 114         {"mathring",  "decoration", ""},
 115         {"mathrm",  "font", ""},
 116         {"mathsf",  "font", ""},
 117         {"mathtt",  "font", ""},
 118         {"matrix",  "matrix", ""},
 119         {"mbox",  "box", ""},
 120         {"newcommand",  "newcommand", ""},
 121         {"nolimits",  "limit", ""},
 122         {"nonumber",  "nonum", ""},
 123         {"overbrace",  "decoration", ""},
 124         {"overleftarrow",  "decoration", ""},
 125         {"overline",  "decoration", ""},
 126         {"overrightarrow",  "decoration", ""},
 127         {"overleftrightarrow", "decoration", ""},
 128         {"pmatrix",  "matrix", ""},
 129         {"protect",  "protect", ""},
 130         {"qquad",  "space", ""},
 131         {"quad",  "space", ""},
 132         {"right",  "right", ""},
 133         {"rm",  "oldfont", ""},
 134         {"scriptscriptstyle",  "style", ""},
 135         {"scriptstyle",  "style", ""},
 136         {"textbf",  "font", "mathtext"},
 137         {"textit",  "font", "mathtext"},
 138         {"textmd",  "font", "mathtext"},
 139         {"textrm",  "font", "mathtext"},
 140         {"textsl",  "font", "mathtext"},
 141         {"textup",  "font", "mathtext"},
 142         {"textstyle",  "style", ""},
 143         {"tilde",  "decoration", ""},
 144         {"tt",  "oldfont", ""},
 145         {"underbar",  "decoration", ""},
 146         {"underbrace",  "decoration", ""},
 147         {"underleftarrow", "decoration", ""},
 148         {"underline",  "decoration", ""},
 149         {"underrightarrow", "decoration", ""},
 150         {"underleftrightarrow", "decoration", ""},
 151         {"underset",  "underset", ""},
 152         {"vdots",  "dots", ""},
 153         {"vec",  "decoration", ""},
 154         {"vmatrix",  "matrix", ""},
 155         {"widehat",  "decoration", ""},
 156         {"widetilde",  "decoration", ""}
 157 };
 158
 159
 160 bool math_font_available(string & name)
 161 {
 162         LyXFont f;
 163         augmentFont(f, name);
 164
 165         // Do we have the font proper?
 166         if (fontloader.available(f))
 167                 return true;
 168
 169         // can we fake it?
 170         if (name == "eufrak") {
 171                 name = "lyxfakefrak";
 172                 return true;
 173         }
 174
 175         lyxerr[Debug::MATHED] << "font " << name << " not available and I can't fake it\n";
 176         return false;
 177 }
 178
 179
 180 void readSymbols(string const & filename)
 181 {
 182         lyxerr[Debug::MATHED] << "read symbols from " << filename << "\n";
 183         std::ifstream fs(filename.c_str());
 184         while (fs) {
 185                 int charid     = 0;
 186                 int fallbackid = 0;
 187                 latexkeys tmp;
 188                 string line;
 189                 getline(fs, line);
 190                 istringstream is(line);
 191                 is      >> tmp.name
 192                                 >> tmp.inset
 193                                 >> charid
 194                                 >> fallbackid
 195                                 >> tmp.extra
 196                                 >> tmp.xmlname;
 197                 if (!is)
 198                         continue;
 199
 200                 // tmp.inset _is_ the fontname here.
 201                 // create fallbacks if necessary
 202                 if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra=="special") {
 203                         lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 204                         tmp.draw = tmp.name;
 205                 } else if (math_font_available(tmp.inset)) {
 206                         lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 207                         tmp.draw += char(charid);
 208                 } else if (fallbackid) {
 209                         if (tmp.inset == "cmex")
 210                                 tmp.inset  = "lyxsymbol";
 211                         else
 212                                 tmp.inset  = "lyxboldsymbol";
 213                         lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 214                         tmp.draw += char(fallbackid);
 215                 } else {
 216                         lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 217                         tmp.draw = tmp.name;
 218                         tmp.inset = "lyxtex";
 219                 }
 220
 221                 if (theWordList.find(tmp.name) != theWordList.end())
 222                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 223                                << " already exists.\n";
 224                 else
 225                         theWordList[tmp.name] = tmp;
 226                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 227                                         <<  "  inset: " << tmp.inset
 228                                         <<  "  draw: " << int(tmp.draw[0])
 229                                         <<  "  extra: " << tmp.extra
 230                                         << "'\n";
 231         }
 232 }
 233
 234
 235 void initSymbols()
 236 {
 237         unsigned const n = sizeof(wordlist_array) / sizeof(wordlist_array[0]);
 238         for (key_type * p = wordlist_array; p != wordlist_array + n; ++p) {
 239                 latexkeys tmp;
 240                 tmp.name  = p->name;
 241                 tmp.inset = p->inset;
 242                 tmp.draw  = p->name;
 243                 theWordList[p->name] = tmp;
 244         }
 245
 246         lyxerr[Debug::MATHED] << "reading symbols file\n";
 247         string const file = LibFileSearch(string(), "symbols");
 248         if (file.empty())
 249                 lyxerr << "Could not find symbols file\n";
 250         else
 251                 readSymbols(file);
 252 }
 253
 254
 255 } // namespace anon
 256
 257
 258 latexkeys const * in_word_set(string const & str)
 259 {
 260         static bool initialized = false;
 261
 262         if (!initialized) {
 263                 initSymbols();
 264                 initialized = true;
 265         }
 266
 267         WordList::iterator it = theWordList.find(str);
 268         //lyxerr << "looking up '" << str << "' found: "
 269         // << (it != theWordList.end()) << "\n";
 270         return (it != theWordList.end()) ? &(it->second) : 0;
 271 }
 272
 273
 274 MathAtom createMathInset(string const & s)
 275 {
 276         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 277         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 278                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 279
 280         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 281                         && s[2] >= '1' && s[2] <= '9')
 282                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 283         if (s == "kern")
 284                 return MathAtom(new MathKernInset);
 285         if (s == "xymatrix")
 286                 return MathAtom(new MathXYMatrixInset);
 287         if (s == "xrightarrow" || s == "xleftarrow")
 288                 return MathAtom(new MathXArrowInset(s));
 289         if (s == "split" || s == "gathered" || s == "aligned")
 290                 return MathAtom(new MathSplitInset(s));
 291         if (s == "cases")
 292                 return MathAtom(new MathCasesInset);
 293         if (s == "substack")
 294                 return MathAtom(new MathSubstackInset);
 295         if (s == "subarray" || s == "array")
 296                 return MathAtom(new MathArrayInset(s, 1, 1));
 297         if (s == "sqrt")
 298                 return MathAtom(new MathSqrtInset);
 299         if (s == "root")
 300                 return MathAtom(new MathRootInset);
 301         if (s == "stack")
 302                 return MathAtom(new MathStackrelInset);
 303         if (s == "binom" || s == "choose")
 304                 return MathAtom(new MathBinomInset);
 305         if (s == "over" || s == "frac")
 306                 return MathAtom(new MathFracInset);
 307         if (s == "atop")
 308                 return MathAtom(new MathFracInset(true));
 309         if (s == "not")
 310                 return MathAtom(new MathNotInset);
 311         if (s == "lefteqn")
 312                 return MathAtom(new MathLefteqnInset);
 313         if (s == "ref")
 314                 return MathAtom(new RefInset);
 315
 316
 317         latexkeys const * l = in_word_set(s);
 318         if (l) {
 319                 string const & inset = l->inset;
 320                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 321                 if (inset == "underset")
 322                         return MathAtom(new MathUndersetInset);
 323                 if (inset == "decoration")
 324                         return MathAtom(new MathDecorationInset(l->name));
 325                 if (inset == "space")
 326                         return MathAtom(new MathSpaceInset(l->name));
 327                 if (inset == "dots")
 328                         return MathAtom(new MathDotsInset(l->name));
 329                 if (inset == "box")
 330                         return MathAtom(new MathBoxInset(l->name));
 331                 if (inset == "fbox")
 332                         return MathAtom(new MathFboxInset);
 333                 if (inset == "style")
 334                         return MathAtom(new MathSizeInset(l));
 335                 if (inset == "font")
 336                         return MathAtom(new MathFontInset(l->name));
 337                 if (inset == "oldfont")
 338                         return MathAtom(new MathFontInset(l->name));
 339                 if (inset == "matrix")
 340                         return MathAtom(new MathAMSArrayInset(s));
 341                 return MathAtom(new MathSymbolInset(l));
 342         }
 343
 344         if (MathMacroTable::has(s))
 345                 return MathAtom(new MathMacro(s));
 346
 347         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 348         return MathAtom(new MathUnknownInset(s));
 349 }