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_macrotemplate.h"
  19 #include "math_macroarg.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/lyx_gui.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 (lyx_gui::font_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         string line;
  87         while (getline(fs, line)) {
  88                 int charid     = 0;
  89                 int fallbackid = 0;
  90                 latexkeys tmp;
  91                 if (line.size() > 0 && line[0] == '#')
  92                         continue;
  93
  94                 // special case of pre-defined macros
  95                 if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
  96                         lyxerr << "defining: '" << line << "'\n";
  97                         istringstream is(line);
  98                         MathMacroTable::create(MathAtom(new MathMacroTemplate(is)));
  99                         continue;
 100                 }
 101
 102                 istringstream is(line);
 103                 is >> tmp.name >> tmp.inset;
 104                 if (isFontName(tmp.inset))
 105                         is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
 106                 else
 107                         is >> tmp.extra;
 108                 if (!is) {
 109                         lyxerr[Debug::MATHED] << "skipping line '" << line << "'\n";
 110                         lyxerr[Debug::MATHED]
 111                                 << tmp.name << ' ' << tmp.inset << ' ' << tmp.extra << "\n";
 112                         continue;
 113                 }
 114
 115                 if (isFontName(tmp.inset)) {
 116                         // tmp.inset _is_ the fontname here.
 117                         // create fallbacks if necessary
 118                         if (tmp.extra=="func" || tmp.extra=="funclim" || tmp.extra=="special") {
 119                                 lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 120                                 tmp.draw = tmp.name;
 121                         } else if (math_font_available(tmp.inset)) {
 122                                 lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 123                                 tmp.draw += char(charid);
 124                         } else if (fallbackid) {
 125                                 if (tmp.inset == "cmex")
 126                                         tmp.inset  = "lyxsymbol";
 127                                 else
 128                                         tmp.inset  = "lyxboldsymbol";
 129                                 lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 130                                 tmp.draw += char(fallbackid);
 131                         } else {
 132                                 lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 133                                 tmp.draw = tmp.name;
 134                                 tmp.inset = "lyxtex";
 135                         }
 136                 } else {
 137                         // it's a proper inset
 138                         lyxerr[Debug::MATHED] << "inset " << tmp.inset << " used for "
 139                                 << tmp.name << "\n";
 140                 }
 141
 142                 if (theWordList.find(tmp.name) != theWordList.end())
 143                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 144                                 << " already exists.\n";
 145                 else
 146                         theWordList[tmp.name] = tmp;
 147                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 148                                         <<  "  inset: " << tmp.inset
 149                                         <<  "  draw: " << int(tmp.draw[0])
 150                                         <<  "  extra: " << tmp.extra
 151                                         << "'\n";
 152         }
 153 }
 154
 155
 156 } // namespace anon
 157
 158
 159 void initMath()
 160 {
 161         static bool initialized = false;
 162         if (!initialized) {
 163                 initSymbols();
 164                 initialized = true;
 165         }
 166 }
 167
 168
 169 latexkeys const * in_word_set(string const & str)
 170 {
 171         WordList::iterator it = theWordList.find(str);
 172         //lyxerr << "looking up '" << str << "' found: "
 173         // << (it != theWordList.end()) << "\n";
 174         return (it != theWordList.end()) ? &(it->second) : 0;
 175 }
 176
 177
 178 MathAtom createMathInset(string const & s)
 179 {
 180         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 181         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 182                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 183
 184         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 185                         && s[2] >= '1' && s[2] <= '9')
 186                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 187         if (s == "kern")
 188                 return MathAtom(new MathKernInset);
 189         if (s == "xymatrix")
 190                 return MathAtom(new MathXYMatrixInset);
 191         if (s == "xrightarrow" || s == "xleftarrow")
 192                 return MathAtom(new MathXArrowInset(s));
 193         if (s == "split" || s == "gathered" || s == "aligned")
 194                 return MathAtom(new MathSplitInset(s));
 195         if (s == "cases")
 196                 return MathAtom(new MathCasesInset);
 197         if (s == "substack")
 198                 return MathAtom(new MathSubstackInset);
 199         if (s == "subarray" || s == "array")
 200                 return MathAtom(new MathArrayInset(s, 1, 1));
 201         if (s == "sqrt")
 202                 return MathAtom(new MathSqrtInset);
 203         if (s == "root")
 204                 return MathAtom(new MathRootInset);
 205         if (s == "stackrel")
 206                 return MathAtom(new MathStackrelInset);
 207         if (s == "binom" || s == "choose")
 208                 return MathAtom(new MathBinomInset(s == "choose"));
 209         if (s == "over" || s == "frac")
 210                 return MathAtom(new MathFracInset);
 211         if (s == "atop")
 212                 return MathAtom(new MathFracInset(true));
 213         if (s == "lefteqn")
 214                 return MathAtom(new MathLefteqnInset);
 215
 216         latexkeys const * l = in_word_set(s);
 217         if (l) {
 218                 string const & inset = l->inset;
 219                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 220                 if (inset == "ref")
 221                         return MathAtom(new RefInset(l->name));
 222                 if (inset == "underset")
 223                         return MathAtom(new MathUndersetInset);
 224                 if (inset == "decoration")
 225                         return MathAtom(new MathDecorationInset(l->name));
 226                 if (inset == "space")
 227                         return MathAtom(new MathSpaceInset(l->name));
 228                 if (inset == "dots")
 229                         return MathAtom(new MathDotsInset(l->name));
 230                 if (inset == "mbox")
 231                         return MathAtom(new MathBoxInset(l->name));
 232                 if (inset == "parbox")
 233                         return MathAtom(new MathParboxInset);
 234                 if (inset == "fbox")
 235                         return MathAtom(new MathFboxInset);
 236                 if (inset == "style")
 237                         return MathAtom(new MathSizeInset(l));
 238                 if (inset == "font")
 239                         return MathAtom(new MathFontInset(l->name));
 240                 if (inset == "oldfont")
 241                         return MathAtom(new MathFontInset(l->name));
 242                 if (inset == "matrix")
 243                         return MathAtom(new MathAMSArrayInset(s));
 244                 return MathAtom(new MathSymbolInset(l));
 245         }
 246
 247         if (MathMacroTable::has(s))
 248                 return MathAtom(new MathMacro(s));
 249
 250         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 251         return MathAtom(new MathUnknownInset(s));
 252 }