]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/math_factory.C
Fix math cursor positioning bug
[lyx.git] / src / mathed / math_factory.C
index 280b48f5d7ccb4c5f081b27c7bd0bfb649c294ff..271bf3fa3cad310d1033c452b5f0ce41c78405a6 100644 (file)
+/**
+ * \file math_factory.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
 #include <config.h>
 
+#include "math_factory.h"
 #include "math_parser.h"
+#include "math_arrayinset.h"
+#include "math_amsarrayinset.h"
 #include "math_binominset.h"
+#include "math_boxinset.h"
+#include "math_boxedinset.h"
+#include "math_boldsymbolinset.h"
+#include "math_casesinset.h"
+#include "math_colorinset.h"
 #include "math_decorationinset.h"
+#include "math_dfracinset.h"
 #include "math_dotsinset.h"
-#include "math_funcinset.h"
-#include "math_funcliminset.h"
+#include "math_fboxinset.h"
+#include "math_frameboxinset.h"
+#include "math_fontinset.h"
+#include "math_fontoldinset.h"
 #include "math_fracinset.h"
 #include "math_kerninset.h"
 #include "math_lefteqninset.h"
 #include "math_macro.h"
-#include "math_macrotable.h"
 #include "math_macroarg.h"
-#include "math_notinset.h"
+#include "math_macrotable.h"
+#include "math_macrotemplate.h"
+#include "math_makeboxinset.h"
+#include "math_oversetinset.h"
+#include "math_parser.h"
 #include "math_rootinset.h"
+#include "math_sizeinset.h"
 #include "math_spaceinset.h"
-#include "math_specialcharinset.h"
+#include "math_splitinset.h"
 #include "math_sqrtinset.h"
-#include "math_symbolinset.h"
 #include "math_stackrelinset.h"
+#include "math_substackinset.h"
+#include "math_symbolinset.h"
+#include "math_tabularinset.h"
+#include "math_tfracinset.h"
+#include "math_undersetinset.h"
+#include "math_unknowninset.h"
+#include "math_xarrowinset.h"
+
+//#include "insets/insetref.h"
+#include "ref_inset.h"
+
+#include "debug.h"
+#include "math_support.h"
+
+#include "support/filetools.h" // LibFileSearch
+#include "support/lstrings.h"
+
+#include "frontends/lyx_gui.h"
+
+#include <fstream>
+#include <sstream>
+
+using lyx::support::LibFileSearch;
+using lyx::support::split;
+
+using std::string;
+using std::endl;
+using std::istringstream;
+
+bool has_math_fonts;
+
+
+namespace {
+
+// file scope
+typedef std::map<string, latexkeys> WordList;
+WordList theWordList;
+
+
+bool math_font_available(string & name)
+{
+       LyXFont f;
+       augmentFont(f, name);
+
+       // Do we have the font proper?
+       if (lyx_gui::font_available(f))
+               return true;
+
+       // can we fake it?
+       if (name == "eufrak") {
+               name = "lyxfakefrak";
+               return true;
+       }
+
+       lyxerr[Debug::MATHED]
+               << "font " << name << " not available and I can't fake it"
+               << endl;
+       return false;
+}
+
+
+void initSymbols()
+{
+       string const filename = LibFileSearch(string(), "symbols");
+       lyxerr[Debug::MATHED] << "read symbols from " << filename << endl;
+       if (filename.empty()) {
+               lyxerr << "Could not find symbols file" << endl;
+               return;
+       }
+
+       std::ifstream fs(filename.c_str());
+       string line;
+       bool skip = false;
+       while (getline(fs, line)) {
+               int charid     = 0;
+               int fallbackid = 0;
+               if (!line.empty() && line[0] == '#')
+                       continue;
+
+               // special case of iffont/else/endif
+               if (line.size() >= 7 && line.substr(0, 6) == "iffont") {
+                       istringstream is(line);
+                       string tmp;
+                       is >> tmp;
+                       is >> tmp;
+                       skip = !math_font_available(tmp);
+                       continue;
+               } else if (line.size() >= 4 && line.substr(0, 4) == "else") {
+                       skip = !skip;
+               } else if (line.size() >= 5 && line.substr(0, 5) == "endif") {
+                       skip = false;
+                       continue;
+               } else if (skip)
+                       continue;
+
+               // special case of pre-defined macros
+               if (line.size() > 8 && line.substr(0, 5) == "\\def\\") {
+                       //lyxerr << "macro definition: '" << line << '\'' << endl;
+                       MacroTable::globalMacros().insert(line);
+                       continue;
+               }
+
+               istringstream is(line);
+               latexkeys tmp;
+               is >> tmp.name >> tmp.inset;
+               if (isFontName(tmp.inset))
+                       is >> charid >> fallbackid >> tmp.extra >> tmp.xmlname;
+               else
+                       is >> tmp.extra;
+               if (!is) {
+                       lyxerr[Debug::MATHED] << "skipping line '" << line << '\'' << endl;
+                       lyxerr[Debug::MATHED]
+                               << tmp.name << ' ' << tmp.inset << ' ' << tmp.extra << endl;
+                       continue;
+               }
+
+               if (isFontName(tmp.inset)) {
+                       // tmp.inset _is_ the fontname here.
+                       // create fallbacks if necessary
+
+                       // symbol font is not available sometimes
+                       string symbol_font = "lyxsymbol";
+
+                       if (tmp.extra == "func" || tmp.extra == "funclim" || tmp.extra == "special") {
+                               lyxerr[Debug::MATHED] << "symbol abuse for " << tmp.name << endl;
+                               tmp.draw = tmp.name;
+                       } else if (math_font_available(tmp.inset)) {
+                               lyxerr[Debug::MATHED] << "symbol available for " << tmp.name << endl;
+                               tmp.draw += char(charid);
+                       } else if (fallbackid && math_font_available(symbol_font)) {
+                               if (tmp.inset == "cmex")
+                                       tmp.inset  = "lyxsymbol";
+                               else
+                                       tmp.inset  = "lyxboldsymbol";
+                               lyxerr[Debug::MATHED] << "symbol fallback for " << tmp.name << endl;
+                               tmp.draw += char(fallbackid);
+                       } else {
+                               lyxerr[Debug::MATHED] << "faking " << tmp.name << endl;
+                               tmp.draw = tmp.name;
+                               tmp.inset = "lyxtex";
+                       }
+               } else {
+                       // it's a proper inset
+                       lyxerr[Debug::MATHED] << "inset " << tmp.inset
+                                             << " used for " << tmp.name
+                                             << endl;
+               }
 
+               if (theWordList.find(tmp.name) != theWordList.end())
+                       lyxerr[Debug::MATHED]
+                               << "readSymbols: inset " << tmp.name
+                               << " already exists." << endl;
+               else
+                       theWordList[tmp.name] = tmp;
 
-MathAtom createMathInset(latexkeys const * l)
+               lyxerr[Debug::MATHED]
+                       << "read symbol '" << tmp.name
+                       << "  inset: " << tmp.inset
+                       << "  draw: " << int(tmp.draw.empty() ? 0 : tmp.draw[0])
+                       << "  extra: " << tmp.extra
+                       << '\'' << endl;
+       }
+       string tmp = "cmm";
+       string tmp2 = "cmsy";
+       has_math_fonts = math_font_available(tmp) && math_font_available(tmp2);
+}
+
+
+} // namespace anon
+
+
+void initMath()
+{
+       static bool initialized = false;
+       if (!initialized) {
+               initParser();
+               initSymbols();
+               initialized = true;
+       }
+}
+
+
+latexkeys const * in_word_set(string const & str)
 {
-       switch (l->token) {
-       case LM_TK_FUNCLIM:
-               return MathAtom(new MathFuncLimInset(l));
-       case LM_TK_SPECIAL:
-               return MathAtom(new MathSpecialCharInset(l->id));
-       case LM_TK_SYM:
-       case LM_TK_CMR:
-       case LM_TK_CMSY:
-       case LM_TK_CMM:
-       case LM_TK_CMEX:
-       case LM_TK_MSA:
-       case LM_TK_MSB:
+       WordList::iterator it = theWordList.find(str);
+       //lyxerr << "looking up '" << str << "' found: "
+       // << (it != theWordList.end()) << endl;
+       return (it != theWordList.end()) ? &(it->second) : 0;
+}
+
+
+MathAtom createMathInset(string const & s)
+{
+       //lyxerr << "creating inset with name: '" << s << '\'' << endl;
+       latexkeys const * l = in_word_set(s);
+       if (l) {
+               string const & inset = l->inset;
+               //lyxerr << " found inset: '" << inset << '\'' << endl;
+               if (inset == "ref")
+                       return MathAtom(new RefInset(l->name));
+               if (inset == "overset")
+                       return MathAtom(new MathOversetInset);
+               if (inset == "underset")
+                       return MathAtom(new MathUndersetInset);
+               if (inset == "decoration")
+                       return MathAtom(new MathDecorationInset(l));
+               if (inset == "space")
+                       return MathAtom(new MathSpaceInset(l->name));
+               if (inset == "dots")
+                       return MathAtom(new MathDotsInset(l));
+               if (inset == "mbox")
+                       // return MathAtom(new MathMBoxInset);
+                       // MathMBoxInset is proposed to replace MathBoxInset,
+                       // but is not ready yet (it needs a BufferView for
+                       // construction)
+                       return MathAtom(new MathBoxInset(l->name));
+//             if (inset == "fbox")
+//                     return MathAtom(new MathFboxInset(l));
+               if (inset == "style")
+                       return MathAtom(new MathSizeInset(l));
+               if (inset == "font")
+                       return MathAtom(new MathFontInset(l));
+               if (inset == "oldfont")
+                       return MathAtom(new MathFontOldInset(l));
+               if (inset == "matrix")
+                       return MathAtom(new MathAMSArrayInset(s));
                return MathAtom(new MathSymbolInset(l));
-       case LM_TK_STACK:
-               return MathAtom(new MathStackrelInset);
-       case LM_TK_KERN: 
+       }
+
+       if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
+               return MathAtom(new MathMacroArgument(s[1] - '0'));
+       if (s.size() == 3 && s[0] == '\\' && s[1] == '#'
+                       && s[2] >= '1' && s[2] <= '9')
+               return MathAtom(new MathMacroArgument(s[2] - '0'));
+       if (s == "boxed")
+               return MathAtom(new MathBoxedInset());
+       if (s == "fbox")
+               return MathAtom(new MathFboxInset());
+       if (s == "framebox")
+               return MathAtom(new MathFrameboxInset);
+       if (s == "makebox")
+               return MathAtom(new MathMakeboxInset);
+       if (s == "kern")
                return MathAtom(new MathKernInset);
-       case LM_TK_BINOM:
-       case LM_TK_CHOOSE:
-               return MathAtom(new MathBinomInset);
-       case LM_TK_OVER:
-       case LM_TK_FRAC:
+       if (s == "xrightarrow" || s == "xleftarrow")
+               return MathAtom(new MathXArrowInset(s));
+       if (s == "split" || s == "gathered" || s == "aligned" || s == "alignedat")
+               return MathAtom(new MathSplitInset(s));
+       if (s == "cases")
+               return MathAtom(new MathCasesInset);
+       if (s == "substack")
+               return MathAtom(new MathSubstackInset);
+       if (s == "subarray" || s == "array")
+               return MathAtom(new MathArrayInset(s, 1, 1));
+       if (s == "sqrt")
+               return MathAtom(new MathSqrtInset);
+       if (s == "root")
+               return MathAtom(new MathRootInset);
+       if (s == "tabular")
+               return MathAtom(new MathTabularInset(s, 1, 1));
+       if (s == "stackrel")
+               return MathAtom(new MathStackrelInset);
+       if (s == "binom" || s == "choose")
+               return MathAtom(new MathBinomInset(s == "choose"));
+       if (s == "over" || s == "frac")
                return MathAtom(new MathFracInset);
-       case LM_TK_ATOP:
+       //if (s == "infer")
+       //      return MathAtom(new MathInferInset);
+       if (s == "atop")
                return MathAtom(new MathFracInset(true));
-       case LM_TK_NOT:
-               return MathAtom(new MathNotInset);
-       case LM_TK_LEFTEQN:
+       if (s == "lefteqn")
                return MathAtom(new MathLefteqnInset);
-       case LM_TK_SQRT:
-               return MathAtom(new MathSqrtInset);
-       case LM_TK_ROOT:
-               return MathAtom(new MathRootInset);
-       case LM_TK_DECORATION:
-               return MathAtom(new MathDecorationInset(l->name));
-       case LM_TK_SPACE:
-               return MathAtom(new MathSpaceInset(l->id));
-       case LM_TK_DOTS:
-               return MathAtom(new MathDotsInset(l->name));
-       }
-       return MathAtom(new MathFuncInset(l->name));
+       if (s == "boldsymbol")
+               return MathAtom(new MathBoldsymbolInset);
+       if (s == "color")
+               return MathAtom(new MathColorInset(true));
+       if (s == "textcolor")
+               return MathAtom(new MathColorInset(false));
+       if (s == "dfrac")
+               return MathAtom(new MathDfracInset);
+       if (s == "tfrac")
+               return MathAtom(new MathTfracInset);
+
+       if (MacroTable::globalMacros().has(s))
+               return MathAtom(new MathMacro(s,
+                       MacroTable::globalMacros().get(s).numargs()));
+       //if (MacroTable::localMacros().has(s))
+       //      return MathAtom(new MathMacro(s,
+       //              MacroTable::localMacros().get(s).numargs()));
+
+       //lyxerr << "creating unknown inset '" << s << "'" << endl;
+       return MathAtom(new MathUnknownInset(s));
 }
 
 
-MathAtom createMathInset(string const & s)
+bool createMathInset_fromDialogStr(string const & str, MathArray & ar)
 {
-       //cerr << "creating inset with name: '" << s << "'\n";
-       if (s.size() == 2 && s[0] == '#' && s[1] >= '1' && s[1] <= '9')
-               return MathAtom(new MathMacroArgument(s[1] - '0'));
+       // An example str:
+       // "ref LatexCommand \\ref{sec:Title}\n\\end_inset\n\n";
+       string name;
+       string body = split(str, name, ' ');
 
-       if (s.size() == 3 && s[0] == '\\' && s[1] == '#' && s[2] >= '1' && s[2] <= '9')
-               return MathAtom(new MathMacroArgument(s[2] - '0'));
+       if (name != "ref" )
+               return false;
 
-       latexkeys const * l = in_word_set(s);
-       if (l)
-               return createMathInset(l);
+       // body comes with a head "LatexCommand " and a
+       // tail "\nend_inset\n\n". Strip them off.
+       string trimmed;
+       body = split(body, trimmed, ' ');
+       split(body, trimmed, '\n');
 
-       if (MathMacroTable::has(s)) 
-               return MathAtom(new MathMacro(s));
+       mathed_parse_cell(ar, trimmed);
+       if (ar.size() != 1)
+               return false;
 
-       return MathAtom(new MathFuncInset(s));
+       return ar[0].nucleus();
 }