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