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] << "font " << name << " not available and I can't fake it\n";
  73         return false;
  74 }
  75
  76
  77 void initSymbols()
  78 {
  79         string const filename = LibFileSearch(string(), "symbols");
  80         lyxerr[Debug::MATHED] << "read symbols from " << filename << "\n";
  81         if (filename.empty()) {
  82                 lyxerr << "Could not find symbols file\n";
  83                 return;
  84         }
  85
  86         std::ifstream fs(filename.c_str());
  87         string line;
  88         while (getline(fs, line)) {
  89                 int charid     = 0;
  90                 int fallbackid = 0;
  91                 latexkeys tmp;
  92                 if (line.size() > 0 && line[0] == '#')
  93                         continue;
  94
  95                 // special case of pre-defined macros
  96                 if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
  97                         lyxerr << "defining: '" << line << "'\n";
  98                         istringstream is(line);
  99                         MathMacroTable::create(MathAtom(new MathMacroTemplate(is)));
 100                         continue;
 101                 }
 102
 103                 istringstream is(line);
 104                 is >> tmp.name >> tmp.inset;
 105                 if (isFontName(tmp.inset))
 106                         is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
 107                 else
 108                         is >> tmp.extra;
 109                 if (!is) {
 110                         lyxerr[Debug::MATHED] << "skipping line '" << line << "'\n";
 111                         lyxerr[Debug::MATHED]
 112                                 << tmp.name << ' ' << tmp.inset << ' ' << tmp.extra << "\n";
 113                         continue;
 114                 }
 115
 116                 if (isFontName(tmp.inset)) {
 117                         // tmp.inset _is_ the fontname here.
 118                         // create fallbacks if necessary
 119                         if (tmp.extra=="func" || tmp.extra=="funclim" || tmp.extra=="special") {
 120                                 lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << "\n";
 121                                 tmp.draw = tmp.name;
 122                         } else if (math_font_available(tmp.inset)) {
 123                                 lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << "\n";
 124                                 tmp.draw += char(charid);
 125                         } else if (fallbackid) {
 126                                 if (tmp.inset == "cmex")
 127                                         tmp.inset  = "lyxsymbol";
 128                                 else
 129                                         tmp.inset  = "lyxboldsymbol";
 130                                 lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << "\n";
 131                                 tmp.draw += char(fallbackid);
 132                         } else {
 133                                 lyxerr[Debug::MATHED] << "faking " << tmp.name << "\n";
 134                                 tmp.draw = tmp.name;
 135                                 tmp.inset = "lyxtex";
 136                         }
 137                 } else {
 138                         // it's a proper inset
 139                         lyxerr[Debug::MATHED] << "inset " << tmp.inset << " used for "
 140                                 << tmp.name << "\n";
 141                 }
 142
 143                 if (theWordList.find(tmp.name) != theWordList.end())
 144                         lyxerr[Debug::MATHED] << "readSymbols: inset " << tmp.name
 145                                 << " already exists.\n";
 146                 else
 147                         theWordList[tmp.name] = tmp;
 148                 lyxerr[Debug::MATHED] << "read symbol '" << tmp.name
 149                                         <<  "  inset: " << tmp.inset
 150                                         <<  "  draw: " << int(tmp.draw[0])
 151                                         <<  "  extra: " << tmp.extra
 152                                         << "'\n";
 153         }
 154 }
 155
 156
 157 } // namespace anon
 158
 159
 160 void initMath()
 161 {
 162         static bool initialized = false;
 163         if (!initialized) {
 164                 initSymbols();
 165                 initialized = true;
 166         }
 167 }
 168
 169
 170 latexkeys const * in_word_set(string const & str)
 171 {
 172         WordList::iterator it = theWordList.find(str);
 173         //lyxerr << "looking up '" << str << "' found: "
 174         // << (it != theWordList.end()) << "\n";
 175         return (it != theWordList.end()) ? &(it->second) : 0;
 176 }
 177
 178
 179 MathAtom createMathInset(string const & s)
 180 {
 181         lyxerr[Debug::MATHED] << "creating inset with name: '" << s << "'\n";
 182         if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
 183                 return MathAtom(new MathMacroArgument(s[1] - '0'));
 184
 185         if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
 186                         && s[2] >= '1' && s[2] <= '9')
 187                 return MathAtom(new MathMacroArgument(s[2] - '0'));
 188         if (s == "kern")
 189                 return MathAtom(new MathKernInset);
 190         if (s == "xymatrix")
 191                 return MathAtom(new MathXYMatrixInset);
 192         if (s == "xrightarrow" || s == "xleftarrow")
 193                 return MathAtom(new MathXArrowInset(s));
 194         if (s == "split" || s == "gathered" || s == "aligned")
 195                 return MathAtom(new MathSplitInset(s));
 196         if (s == "cases")
 197                 return MathAtom(new MathCasesInset);
 198         if (s == "substack")
 199                 return MathAtom(new MathSubstackInset);
 200         if (s == "subarray" || s == "array")
 201                 return MathAtom(new MathArrayInset(s, 1, 1));
 202         if (s == "sqrt")
 203                 return MathAtom(new MathSqrtInset);
 204         if (s == "root")
 205                 return MathAtom(new MathRootInset);
 206         if (s == "stackrel")
 207                 return MathAtom(new MathStackrelInset);
 208         if (s == "binom" || s == "choose")
 209                 return MathAtom(new MathBinomInset(s == "choose"));
 210         if (s == "over" || s == "frac")
 211                 return MathAtom(new MathFracInset);
 212         if (s == "atop")
 213                 return MathAtom(new MathFracInset(true));
 214         if (s == "lefteqn")
 215                 return MathAtom(new MathLefteqnInset);
 216
 217         latexkeys const * l = in_word_set(s);
 218         if (l) {
 219                 string const & inset = l->inset;
 220                 lyxerr[Debug::MATHED] << " found inset: '" << inset << "'\n";
 221                 if (inset == "ref")
 222                         return MathAtom(new RefInset(l->name));
 223                 if (inset == "underset")
 224                         return MathAtom(new MathUndersetInset);
 225                 if (inset == "decoration")
 226                         return MathAtom(new MathDecorationInset(l));
 227                 if (inset == "space")
 228                         return MathAtom(new MathSpaceInset(l->name));
 229                 if (inset == "dots")
 230                         return MathAtom(new MathDotsInset(l));
 231                 if (inset == "mbox")
 232                         return MathAtom(new MathBoxInset(l->name));
 233                 if (inset == "parbox")
 234                         return MathAtom(new MathParboxInset);
 235                 if (inset == "fbox")
 236                         return MathAtom(new MathFboxInset);
 237                 if (inset == "style")
 238                         return MathAtom(new MathSizeInset(l));
 239                 if (inset == "font")
 240                         return MathAtom(new MathFontInset(l));
 241                 if (inset == "oldfont")
 242                         return MathAtom(new MathFontOldInset(l));
 243                 if (inset == "matrix")
 244                         return MathAtom(new MathAMSArrayInset(s));
 245                 return MathAtom(new MathSymbolInset(l));
 246         }
 247
 248         if (MathMacroTable::has(s))
 249                 return MathAtom(new MathMacro(s));
 250
 251         //lyxerr[Debug::MATHED] << "creating inset 2 with name: '" << s << "'\n";
 252         return MathAtom(new MathUnknownInset(s));
 253 }