Substack support for XHTML.

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

diff --git a/src/mathed/MathParser.cpp b/src/mathed/MathParser.cpp
index b4d4102bfb66840ef7a522393103b062eed90b4b..ad52e76105c3a0a0f8038672cdaa3230bf53237f 100644 (file)
--- a/src/mathed/MathParser.cpp
+++ b/src/mathed/MathParser.cpp
@@ -248,8 +248,11 @@ void delEmptyLastRow(InsetMathGrid & grid)
  */
 bool innerHull(docstring const & name)
 {
+       // For [bB]matrix, [vV]matrix, and pmatrix we can check the suffix only
        return name == "array" || name == "cases" || name == "aligned"
-               || name == "alignedat" || name == "gathered" || name == "split";
+               || name == "alignedat" || name == "gathered" || name == "split"
+               || name == "subarray" || name == "tabular" || name == "matrix"
+               || name.substr(1) == "matrix";
 }
 
 
@@ -846,9 +849,16 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                                Token const & n = getToken();
                                if (n.cat() == catMath) {
                                        // TeX's $$...$$ syntax for displayed math
-                                       cell->push_back(MathAtom(new InsetMathHull(buf, hullEquation)));
-                                       parse2(cell->back(), FLAG_SIMPLE, InsetMath::MATH_MODE, false);
-                                       getToken(); // skip the second '$' token
+                                       if (mode == InsetMath::UNDECIDED_MODE) {
+                                               cell->push_back(MathAtom(new InsetMathHull(buf, hullEquation)));
+                                               parse2(cell->back(), FLAG_SIMPLE, InsetMath::MATH_MODE, false);
+                                               getToken(); // skip the second '$' token
+                                       } else {
+                                               // This is not an outer hull and display math is
+                                               // not allowed inside text mode environments.
+                                               error("bad math environment");
+                                               break;
+                                       }
                                } else {
                                        // simple $...$  stuff
                                        putback();
@@ -869,8 +879,19 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                        }
 
                        else {
-                               error("something strange in the parser");
-                               break;
+                               Token const & n = getToken();
+                               if (n.cat() == catMath) {
+                                       error("something strange in the parser");
+                                       break;
+                               } else {
+                                       // This is inline math ($...$), but the parser thinks we are
+                                       // already in math mode and latex would issue an error, unless we
+                                       // are inside a text mode user macro. We have no way to tell, so
+                                       // let's play safe by using \ensuremath, as it will work in any case.
+                                       putback();
+                                       cell->push_back(MathAtom(new InsetMathEnsureMath(buf)));
+                                       parse(cell->back().nucleus()->cell(0), FLAG_SIMPLE, InsetMath::MATH_MODE);
+                               }
                        }
                }
 
@@ -1214,12 +1235,8 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                }
 
                else if (t.cs() == "(") {
-                       if (mode == InsetMath::MATH_MODE) {
-                               error("bad math environment");
-                               break;
-                       }
-                       cell->push_back(MathAtom(new InsetMathHull(buf, hullSimple)));
-                       parse2(cell->back(), FLAG_SIMPLE2, InsetMath::MATH_MODE, false);
+                       cell->push_back(MathAtom(new InsetMathEnsureMath(buf)));
+                       parse(cell->back().nucleus()->cell(0), FLAG_SIMPLE2, InsetMath::MATH_MODE);
                }
 
                else if (t.cs() == "[") {
@@ -1331,7 +1348,7 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
 #endif
 
                else if (t.cs() == "limits" || t.cs() == "nolimits") {
-                       CatCode cat = nextToken().cat();
+                       CatCode const cat = nextToken().cat();
                        if (cat == catSuper || cat == catSub)
                                limits = t.cs() == "limits" ? 1 : -1;
                        else {
@@ -1491,12 +1508,8 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                        }
 
                        else if (name == "math") {
-                               if (mode == InsetMath::MATH_MODE) {
-                                       error("bad math environment");
-                                       break;
-                               }
-                               cell->push_back(MathAtom(new InsetMathHull(buf, hullSimple)));
-                               parse2(cell->back(), FLAG_END, InsetMath::MATH_MODE, true);
+                               cell->push_back(MathAtom(new InsetMathEnsureMath(buf)));
+                               parse(cell->back().nucleus()->cell(0), FLAG_END, InsetMath::MATH_MODE);
                        }
 
                        else if (name == "equation" || name == "equation*"
@@ -1694,6 +1707,11 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                else if (t.cs() == "substack") {
                        cell->push_back(createInsetMath(t.cs(), buf));
                        parse2(cell->back(), FLAG_ITEM, mode, false);
+                       // Delete empty last row if present
+                       InsetMathGrid & subgrid =
+                               *(cell->back().nucleus()->asGridInset());
+                       if (subgrid.nrows() > 1)
+                               delEmptyLastRow(subgrid);
                }
 
                else if (t.cs() == "xymatrix") {
@@ -1702,6 +1720,19 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
                                os << getToken().asInput();
                        cell->push_back(createInsetMath(t.cs() + os.str(), buf));
                        parse2(cell->back(), FLAG_ITEM, mode, false);
+                       // Delete empty last row if present
+                       InsetMathGrid & subgrid =
+                               *(cell->back().nucleus()->asGridInset());
+                       if (subgrid.nrows() > 1)
+                               delEmptyLastRow(subgrid);
+               }
+
+               else if (t.cs() == "Diagram") {
+                       odocstringstream os;
+                       while (good() && nextToken().cat() != catBegin)
+                               os << getToken().asInput();
+                       cell->push_back(createInsetMath(t.cs() + os.str(), buf));
+                       parse2(cell->back(), FLAG_ITEM, mode, false);
                }
 
                else if (t.cs() == "framebox" || t.cs() == "makebox") {
@@ -1800,12 +1831,15 @@ bool Parser::parse1(InsetMathGrid & grid, unsigned flags,
 
                else if (t.cs().size()) {
                        bool const no_mhchem =
-                               (t.cs() == "ce" || t.cs() == "cf") && buf
-                               && buf->params().use_mhchem == BufferParams::package_off;
+                               (t.cs() == "ce" || t.cs() == "cf")
+                               && buf && buf->params().use_mhchem ==
+                                               BufferParams::package_off;
+
                        bool const is_user_macro = no_mhchem ||
                                (buf && (mode_ & Parse::TRACKMACRO
-                                       ? buf->usermacros.count(t.cs()) != 0
-                                       : buf->getMacro(t.cs(), false) != 0));
+                                        ? buf->usermacros.count(t.cs()) != 0
+                                        : buf->getMacro(t.cs(), false) != 0));
+
                        latexkeys const * l = in_word_set(t.cs());
                        if (l && !is_user_macro) {
                                if (l->inset == "big") {