Account for old versions of Pygments

[lyx.git] / src / mathed / MathFactory.cpp

diff --git a/src/mathed/MathFactory.cpp b/src/mathed/MathFactory.cpp
index f7c21e805ee5a0bb8ab784cb71982f2c04129f59..79ae676fc39b3ddc3d583149fd7d306f41e6d568 100644 (file)
--- a/src/mathed/MathFactory.cpp
+++ b/src/mathed/MathFactory.cpp
@@ -19,6 +19,7 @@
 #include "InsetMathCancel.h"
 #include "InsetMathCancelto.h"
 #include "InsetMathCases.h"
+#include "InsetMathClass.h"
 #include "InsetMathColor.h"
 #include "InsetMathDecoration.h"
 #include "InsetMathDots.h"
@@ -73,6 +74,7 @@
 #include "LyX.h" // use_gui
 #include "OutputParams.h"
 
+#include <iomanip>
 
 using namespace std;
 using namespace lyx::support;
@@ -147,6 +149,8 @@ void initSymbols()
        }
 
        ifstream fs(filename.toFilesystemEncoding().c_str());
+       // limit the size of strings we read to avoid memory problems
+       fs >> setw(65636);
        string line;
        bool skip = false;
        while (getline(fs, line)) {
@@ -158,6 +162,8 @@ void initSymbols()
                // special case of iffont/else/endif
                if (line.size() >= 7 && line.substr(0, 6) == "iffont") {
                        istringstream is(line);
+                       // limit the size of strings we read to avoid memory problems
+                       is >> setw(65636);
                        string tmp;
                        is >> tmp;
                        is >> tmp;
@@ -187,7 +193,7 @@ void initSymbols()
                        string extra;
                        string xmlname;
                        bool hidden = false;
-                       is >> macro >> requires;
+                       is >> setw(65536) >> macro >> requires;
                        if ((is >> xmlname)) {
                                extra = requires;
                                if (!(is >> requires))
@@ -360,23 +366,41 @@ void initMath()
 }
 
 
-bool ensureMath(WriteStream & os, bool needs_math_mode, bool macro)
+bool ensureMath(WriteStream & os, bool needs_mathmode, bool macro,
+                bool textmode_macro)
 {
        bool brace = os.pendingBrace();
        os.pendingBrace(false);
        if (!os.latex())
                return brace;
-       if (os.textMode() && needs_math_mode) {
-               os << "\\ensuremath{";
+       if (os.textMode() && needs_mathmode) {
+               if (brace) {
+                       // close \lyxmathsym
+                       os << '}';
+                       brace = false;
+               } else {
+                       os << "\\ensuremath{";
+                       brace = true;
+               }
                os.textMode(false);
-               brace = true;
-       } else if (macro && brace && !needs_math_mode) {
-               // This is a user defined macro, but not a MathMacro, so we
-               // cannot be sure what mode is needed. As it was entered in
-               // a text box, we restore the text mode.
-               os << '}';
+       } else if (macro && textmode_macro && !os.textMode()) {
+               if (brace) {
+                       // close \ensuremath
+                       os << '}';
+                       brace = false;
+               } else {
+                       os << "\\lyxmathsym{";
+                       brace = true;
+               }
                os.textMode(true);
+       } else if (macro && brace && !needs_mathmode && !textmode_macro) {
+               // This is a user defined macro, not a MathMacro, so we
+               // cannot be sure what mode is needed. We leave it in the
+               // same environment it was entered by closing either \lyxmathsym
+               // or \ensuremath, whichever was opened.
+               os << '}';
                brace = false;
+               os.textMode(!os.textMode());
        }
        return brace;
 }
@@ -440,6 +464,8 @@ MathAtom createInsetMath(docstring const & s, Buffer * buf)
                        return MathAtom(new InsetMathDecoration(buf, l));
                if (inset == "space")
                        return MathAtom(new InsetMathSpace(to_ascii(l->name), ""));
+               if (inset == "class")
+                       return MathAtom(new InsetMathClass(buf, string_to_class(s)));
                if (inset == "dots")
                        return MathAtom(new InsetMathDots(l));
                if (inset == "mbox")
@@ -476,8 +502,6 @@ MathAtom createInsetMath(docstring const & s, Buffer * buf)
                return MathAtom(new InsetMathMakebox(buf, true));
        if (s == "makebox")
                return MathAtom(new InsetMathMakebox(buf, false));
-       if (s == "kern")
-               return MathAtom(new InsetMathKern);
        if (s.substr(0, 8) == "xymatrix") {
                char spacing_code = '\0';
                Length spacing;
@@ -644,7 +668,6 @@ MathAtom createInsetMath(docstring const & s, Buffer * buf)
                return MathAtom(new InsetMathSpecialChar(s));
        if (s == " ")
                return MathAtom(new InsetMathSpace(" ", ""));
-
        if (s == "regexp")
                return MathAtom(new InsetMathHull(buf, hullRegexp));
 
@@ -671,7 +694,7 @@ bool createInsetMath_fromDialogStr(docstring const & str, MathData & ar)
                InsetSpace::string2params(to_utf8(str), isp);
                InsetSpace is(isp);
                odocstringstream ods;
-               otexstream os(ods, false);
+               otexstream os(ods);
                Encoding const * const ascii = encodings.fromLyXName("ascii");
                OutputParams op(ascii);
                is.latex(os, op);