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_ertinset.h"
  12 #include "math_fboxinset.h"
  13 #include "math_fontinset.h"
  14 #include "math_fontoldinset.h"
  15 #include "math_fracinset.h"
  16 #include "math_kerninset.h"
  17 #include "math_inferinset.h"
  18 #include "math_lefteqninset.h"
  19 #include "math_macro.h"
  20 #include "math_macrotable.h"
  21 #include "math_macrotemplate.h"
  22 #include "math_macroarg.h"
  23 #include "math_parboxinset.h"
  24 #include "math_rootinset.h"
  25 #include "math_sizeinset.h"
  26 #include "math_spaceinset.h"
  27 #include "math_splitinset.h"
  28 #include "math_sqrtinset.h"
  29 #include "math_stackrelinset.h"
  30 #include "math_substackinset.h"
  31 #include "math_symbolinset.h"
  32 #include "math_undersetinset.h"
  33 #include "math_unknowninset.h"
  34 #include "math_xarrowinset.h"
  35 #include "math_xymatrixinset.h"
  36 #include "math_xyarrowinset.h"
  37
  38 //#include "insets/insetref.h"
  39 #include "ref_inset.h"
  40
  41 #include "math_metricsinfo.h"
  42 #include "debug.h"
  43 #include "math_support.h"
  44 #include "Lsstream.h"
  45 #include "support/filetools.h" // LibFileSearch
  46 #include "frontends/lyx_gui.h"
  47
  48 #include <map>
  49 #include <fstream>
  50
  51
  52 namespace {
  53
  54 // file scope
  55 typedef std::map<string, latexkeys> WordList;
  56 WordList theWordList;
  57
  58
  59 bool math_font_available(string & name)
  60 {
  61         LyXFont f;
  62         augmentFont(f, name);
  63
  64         // Do we have the font proper?
  65         if (lyx_gui::font_available(f))
  66                 return true;
  67
  68         // can we fake it?
  69         if (name == "eufrak") {
  70                 name = "lyxfakefrak";
  71                 return true;
  72         }
  73
  74         lyxerr[Debug::MATHED]
  75                 << "font " << name << " not available and I can't fake it\n";
  76         return false;
  77 }
  78
  79
  80 void initSymbols()
  81 {
  82         string const filename = LibFileSearch(string(), "symbols");
  83         lyxerr[Debug::MATHED] << "read symbols from " << filename << "\n";
  84         if (filename.empty()) {
  85                 lyxerr << "Could not find symbols file\n";
  86                 return;
  87         }
  88
  89         std::ifstream fs(filename.c_str());
  90         string line;
  91         while (getline(fs, line)) {
  92                 int charid     = 0;
  93                 int fallbackid = 0;
  94                 latexkeys tmp;
  95                 if (line.size() > 0 && line[0] == '#')
  96                         continue;
  97
  98                 // special case of pre-defined macros
  99                 if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
 100                         //lyxerr << "defining: '" << line << "'\n";
 101                         istringstream is(line);
 102                         MathMacroTable::create(MathAtom(new MathMacroTemplate(is)));
 103                         continue;
 104                 }
 105
 106                 istringstream is(line);
 107                 is >> tmp.name >> tmp.inset;
 108                 if (isFontName(tmp.inset))
 109                         is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
 110                 else
 111                         is >> tmp.extra;
 112                 if (!is) {
 113                         lyxerr[Debug::MATHED] << "skipping line '" << line << "'\n";
 114                         lyxerr[Debug::MATHED]
 115                                 << tmp.name << ' ' << tmp.inset << ' ' << tmp.extra << "\n";
 116                         continue;
 117                 }
 118
 119                 if (isFontName(tmp.inset)) {
 120                         // tmp.inset _is_ the fontname here.
 121                         // create fallbacks if necessary
 122                         if (tmp.extra=="func" || tmp.extra=="funclim" || tmp.extra=="special") {
 123                                 lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 124                                 tmp.draw = tmp.name;
 125                         } else if (math_font_available(tmp.inset)) {
 126                                 lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 127                                 tmp.draw += char(charid);
 128                         } else if (fallbackid) {
 129                                 if (tmp.inset == "cmex")
 130                                         tmp.inset  = "lyxsymbol";
 131                                 else
 132                                         tmp.inset  = "lyxboldsymbol";
 133                                 lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 134                                 tmp.draw += char(fallbackid);
 135                         } else {
 136                                 lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 137                                 tmp.draw = tmp.name;
 138                                 tmp.inset = "lyxtex";
 139                         }
 140                 } else {
 141                         // it's a proper inset
 142                         lyxerr[Debug::MATHED] << "inset " << tmp.inset << " used for "
 143                                 << tmp.name << "\n";
 144                 }
 145
 146                 if (theWordList.find(tmp.name) != theWordList.end())
 147                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 148                                 << " already exists.\n";
 149                 else
 150                         theWordList[tmp.name] = tmp;
 151                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 152                                         <<  "  inset: " << tmp.inset
 153                                         <<  "  draw: " << int(tmp.draw[0])
 154                                         <<  "  extra: " << tmp.extra
 155                                         << "'\n";
 156         }
 157 }
 158
 159
 160 } // namespace anon
 161
 162
 163 void initMath()
 164 {
 165         static bool initialized = false;
 166         if (!initialized) {
 167                 initSymbols();
 168                 initialized = true;
 169         }
 170 }
 171
 172
 173 latexkeys const * in_word_set(string const & str)
 174 {
 175         WordList::iterator it = theWordList.find(str);
 176         //lyxerr << "looking up '" << str << "' found: "
 177         // << (it != theWordList.end()) << "\n";
 178         return (it != theWordList.end()) ? &(it->second) : 0;
 179 }
 180
 181
 182 MathAtom createMathInset(string const & s)
 183 {
 184         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 185         latexkeys const * l = in_word_set(s);
 186         if (l) {
 187                 string const & inset = l->inset;
 188                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 189                 if (inset == "ref")
 190                         return MathAtom(new RefInset(l->name));
 191                 if (inset == "underset")
 192                         return MathAtom(new MathUndersetInset);
 193                 if (inset == "decoration")
 194                         return MathAtom(new MathDecorationInset(l));
 195                 if (inset == "space")
 196                         return MathAtom(new MathSpaceInset(l->name));
 197                 if (inset == "dots")
 198                         return MathAtom(new MathDotsInset(l));
 199                 if (inset == "mbox")
 200                         return MathAtom(new MathBoxInset(l->name));
 201                 if (inset == "parbox")
 202                         return MathAtom(new MathParboxInset);
 203                 if (inset == "fbox")
 204                         return MathAtom(new MathFboxInset(l));
 205                 if (inset == "style")
 206                         return MathAtom(new MathSizeInset(l));
 207                 if (inset == "font")
 208                         return MathAtom(new MathFontInset(l));
 209                 if (inset == "oldfont")
 210                         return MathAtom(new MathFontOldInset(l));
 211                 if (inset == "matrix")
 212                         return MathAtom(new MathAMSArrayInset(s));
 213                 return MathAtom(new MathSymbolInset(l));
 214         }
 215
 216         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 217                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 218         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 219                         && s[2] >= '1' && s[2] <= '9')
 220                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 221         if (s == "kern")
 222                 return MathAtom(new MathKernInset);
 223         if (s == "xymatrix")
 224                 return MathAtom(new MathXYMatrixInset);
 225         if (s == "xrightarrow" || s == "xleftarrow")
 226                 return MathAtom(new MathXArrowInset(s));
 227         if (s == "split" || s == "gathered" || s == "aligned")
 228                 return MathAtom(new MathSplitInset(s));
 229         if (s == "cases")
 230                 return MathAtom(new MathCasesInset);
 231         if (s == "substack")
 232                 return MathAtom(new MathSubstackInset);
 233         if (s == "subarray" || s == "array")
 234                 return MathAtom(new MathArrayInset(s, 1, 1));
 235         if (s == "sqrt")
 236                 return MathAtom(new MathSqrtInset);
 237         if (s == "root")
 238                 return MathAtom(new MathRootInset);
 239         if (s == "stackrel")
 240                 return MathAtom(new MathStackrelInset);
 241         if (s == "binom" || s == "choose")
 242                 return MathAtom(new MathBinomInset(s == "choose"));
 243         if (s == "over" || s == "frac")
 244                 return MathAtom(new MathFracInset);
 245         //if (s == "infer")
 246         //      return MathAtom(new MathInferInset);
 247         if (s == "atop")
 248                 return MathAtom(new MathFracInset(true));
 249         if (s == "lefteqn")
 250                 return MathAtom(new MathLefteqnInset);
 251         if (s == "lyxert")
 252                 return MathAtom(new MathErtInset);
 253
 254         if (MathMacroTable::has(s))
 255                 return MathAtom(new MathMacro(s));
 256
 257         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 258         return MathAtom(new MathUnknownInset(s));
 259 }