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