parse(ar, FLAG_BRACE_LAST, mode);
// do not create a BraceInset if they were written by LyX
// this helps to keep the annoyance of "a choose b" to a minimum
- // But create a BraceInset if a script follows (#9348)
InsetMathBrace const * mb;
- if (ar.size() > 0)
- mb = ar[0]->asBraceInset();
- if (ar.size() == 1 && (ar[0]->extraBraces()
- || (mb && mb->cell(0).size()
- && !mb->cell(0)[0].nucleus()->asScriptInset())))
+ InsetMathChar const * mc;
+ for (size_type i = 0; i < ar.size(); ++i) {
+ mb = ar[i]->asBraceInset();
+ mc = mb && mb->cell(0).size() > 1 && mb->cell(0)[0]->asMacro()
+ ? mb->cell(0)[1]->asCharInset(): 0;
+ if (mc && mc->getChar() == '[') {
+ // Remove the BraceInset around a macro
+ // with optional arguments. It will be
+ // automatically reinserted on write.
+ MathData md = mb->cell(0);
+ ar.erase(i);
+ ar.insert(i,md);
+ }
+ }
+ if (ar.size() == 1 && ar[0]->extraBraces())
cell->append(ar);
else
cell->push_back(MathAtom(new InsetMathBrace(ar)));