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_parboxinset.h"
  21 #include "math_rootinset.h"
  22 #include "math_sizeinset.h"
  23 #include "math_spaceinset.h"
  24 #include "math_splitinset.h"
  25 #include "math_sqrtinset.h"
  26 #include "math_stackrelinset.h"
  27 #include "math_substackinset.h"
  28 #include "math_symbolinset.h"
  29 #include "math_undersetinset.h"
  30 #include "math_unknowninset.h"
  31 #include "math_xarrowinset.h"
  32 #include "math_xymatrixinset.h"
  33 #include "math_xyarrowinset.h"
  34
  35 //#include "insets/insetref.h"
  36 #include "ref_inset.h"
  37
  38 #include "math_metricsinfo.h"
  39 #include "debug.h"
  40 #include "math_support.h"
  41 #include "Lsstream.h"
  42 #include "support/filetools.h" // LibFileSearch
  43 #include "frontends/font_loader.h"
  44
  45 #include <map>
  46 #include <fstream>
  47
  48
  49 namespace {
  50
  51 // file scope
  52 typedef std::map<string, latexkeys> WordList;
  53 WordList theWordList;
  54
  55
  56 bool math_font_available(string & name)
  57 {
  58         LyXFont f;
  59         augmentFont(f, name);
  60
  61         // Do we have the font proper?
  62         if (fontloader.available(f))
  63                 return true;
  64
  65         // can we fake it?
  66         if (name == "eufrak") {
  67                 name = "lyxfakefrak";
  68                 return true;
  69         }
  70
  71         lyxerr[Debug::MATHED] << "font " << name << " not available and I can't fake it\n";
  72         return false;
  73 }
  74
  75
  76 void initSymbols()
  77 {
  78         string const filename = LibFileSearch(string(), "symbols");
  79         lyxerr[Debug::MATHED] << "read symbols from " << filename << "\n";
  80         if (filename.empty()) {
  81                 lyxerr << "Could not find symbols file\n";
  82                 return;
  83         }
  84
  85         std::ifstream fs(filename.c_str());
  86         while (fs) {
  87                 int charid     = 0;
  88                 int fallbackid = 0;
  89                 latexkeys tmp;
  90                 string line;
  91                 getline(fs, line);
  92                 if (line.size() > 1 && line[0] == '#')
  93                         continue;
  94                 istringstream is(line);
  95                 is >> tmp.name >> tmp.inset;
  96                 if (isFontName(tmp.inset))
  97                         is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
  98                 else
  99                         is >> tmp.extra;
 100                 if (!is) {
 101                         lyxerr[Debug::MATHED] << "skipping line '" << line << "'\n";
 102                         lyxerr[Debug::MATHED]
 103                                 << tmp.name << ' ' << tmp.inset << ' ' << tmp.extra << "\n";
 104                         continue;
 105                 }
 106
 107                 if (isFontName(tmp.inset)) {
 108                         // tmp.inset _is_ the fontname here.
 109                         // create fallbacks if necessary
 110                         if (tmp.extra=="func" || tmp.extra=="funclim" || tmp.extra=="special") {
 111                                 lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 112                                 tmp.draw = tmp.name;
 113                         } else if (math_font_available(tmp.inset)) {
 114                                 lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 115                                 tmp.draw += char(charid);
 116                         } else if (fallbackid) {
 117                                 if (tmp.inset == "cmex")
 118                                         tmp.inset  = "lyxsymbol";
 119                                 else
 120                                         tmp.inset  = "lyxboldsymbol";
 121                                 lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 122                                 tmp.draw += char(fallbackid);
 123                         } else {
 124                                 lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 125                                 tmp.draw = tmp.name;
 126                                 tmp.inset = "lyxtex";
 127                         }
 128                 } else {
 129                         // it's a proper inset
 130                         lyxerr[Debug::MATHED] << "inset " << tmp.inset << " used for "
 131                                 << tmp.name << "\n";
 132                 }
 133
 134                 if (theWordList.find(tmp.name) != theWordList.end())
 135                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 136                                 << " already exists.\n";
 137                 else
 138                         theWordList[tmp.name] = tmp;
 139                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 140                                         <<  "  inset: " << tmp.inset
 141                                         <<  "  draw: " << int(tmp.draw[0])
 142                                         <<  "  extra: " << tmp.extra
 143                                         << "'\n";
 144         }
 145 }
 146
 147
 148 } // namespace anon
 149
 150
 151 latexkeys const * in_word_set(string const & str)
 152 {
 153         static bool initialized = false;
 154
 155         if (!initialized) {
 156                 initSymbols();
 157                 initialized = true;
 158         }
 159
 160         WordList::iterator it = theWordList.find(str);
 161         //lyxerr << "looking up '" << str << "' found: "
 162         // << (it != theWordList.end()) << "\n";
 163         return (it != theWordList.end()) ? &(it->second) : 0;
 164 }
 165
 166
 167 MathAtom createMathInset(string const & s)
 168 {
 169         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 170         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 171                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 172
 173         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 174                         && s[2] >= '1' && s[2] <= '9')
 175                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 176         if (s == "kern")
 177                 return MathAtom(new MathKernInset);
 178         if (s == "xymatrix")
 179                 return MathAtom(new MathXYMatrixInset);
 180         if (s == "xrightarrow" || s == "xleftarrow")
 181                 return MathAtom(new MathXArrowInset(s));
 182         if (s == "split" || s == "gathered" || s == "aligned")
 183                 return MathAtom(new MathSplitInset(s));
 184         if (s == "cases")
 185                 return MathAtom(new MathCasesInset);
 186         if (s == "substack")
 187                 return MathAtom(new MathSubstackInset);
 188         if (s == "subarray" || s == "array")
 189                 return MathAtom(new MathArrayInset(s, 1, 1));
 190         if (s == "sqrt")
 191                 return MathAtom(new MathSqrtInset);
 192         if (s == "root")
 193                 return MathAtom(new MathRootInset);
 194         if (s == "stackrel")
 195                 return MathAtom(new MathStackrelInset);
 196         if (s == "binom" || s == "choose")
 197                 return MathAtom(new MathBinomInset(s == "choose"));
 198         if (s == "over" || s == "frac")
 199                 return MathAtom(new MathFracInset);
 200         if (s == "atop")
 201                 return MathAtom(new MathFracInset(true));
 202         if (s == "not")
 203                 return MathAtom(new MathNotInset);
 204         if (s == "lefteqn")
 205                 return MathAtom(new MathLefteqnInset);
 206
 207         latexkeys const * l = in_word_set(s);
 208         if (l) {
 209                 string const & inset = l->inset;
 210                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 211                 if (inset == "ref")
 212                         return MathAtom(new RefInset(l->name));
 213                 if (inset == "underset")
 214                         return MathAtom(new MathUndersetInset);
 215                 if (inset == "decoration")
 216                         return MathAtom(new MathDecorationInset(l->name));
 217                 if (inset == "space")
 218                         return MathAtom(new MathSpaceInset(l->name));
 219                 if (inset == "dots")
 220                         return MathAtom(new MathDotsInset(l->name));
 221                 if (inset == "mbox")
 222                         return MathAtom(new MathBoxInset(l->name));
 223                 if (inset == "parbox")
 224                         return MathAtom(new MathParboxInset);
 225                 if (inset == "fbox")
 226                         return MathAtom(new MathFboxInset);
 227                 if (inset == "style")
 228                         return MathAtom(new MathSizeInset(l));
 229                 if (inset == "font")
 230                         return MathAtom(new MathFontInset(l->name));
 231                 if (inset == "oldfont")
 232                         return MathAtom(new MathFontInset(l->name));
 233                 if (inset == "matrix")
 234                         return MathAtom(new MathAMSArrayInset(s));
 235                 return MathAtom(new MathSymbolInset(l));
 236         }
 237
 238         if (MathMacroTable::has(s))
 239                 return MathAtom(new MathMacro(s));
 240
 241         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 242         return MathAtom(new MathUnknownInset(s));
 243 }