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