anne/lyx_mirror
1
0
Fork 0
mirror of https://git.lyx.org/repos/lyx.git synced 2024-11-10 20:04:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Make InsetMathExInt handle products as well as sums.

Browse Source 
We can do more here, but it's actually not clear to me whether we even
need to give these things special treatment for MathML. I may revert
this.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@32568 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Richard Heck 2009-12-17 17:28:07 +00:00
parent c3fc67ef54
commit 46e1424678
3 changed files with 33 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/mathed/InsetMathExInt.cpp
View File

@ -71,8 +71,16 @@ void InsetMathExInt::draw(PainterInfo &, int, int) const
}
bool InsetMathExInt::isExIntOperator(docstring const & name)
{
std::string const & sname = to_utf8(name);
return sname == "sum" || sname == "prod";
}
void InsetMathExInt::maple(MapleStream & os) const
{
// FIXME Products and the like may need special treatment.
os << symbol_ << '(';
if (cell(0).size())
os << cell(0);
@ -87,6 +95,7 @@ void InsetMathExInt::maple(MapleStream & os) const
void InsetMathExInt::maxima(MaximaStream & os) const
{
// FIXME Products and the like may need special treatment.
if (symbol_ == "int")
os << "integrate(";
else
@ -102,8 +111,10 @@ void InsetMathExInt::maxima(MaximaStream & os) const
os << cell(1) << ')';
}
void InsetMathExInt::mathematica(MathematicaStream & os) const
{
// FIXME Products and the like may need special treatment.
if (symbol_ == "int")
os << "Integrate[";
else if (symbol_ == "sum")
@ -125,7 +136,7 @@ void InsetMathExInt::mathematica(MathematicaStream & os) const
void InsetMathExInt::mathmlize(MathStream & os) const
{
InsetMathSymbol sym(symbol_);
if (symbol_ == "sum") {
if (isExIntOperator(symbol_)) {
bool const lower = !cell(1).empty();
bool const upper = !cell(3).empty();
if (lower && upper)
@ -189,5 +200,4 @@ void InsetMathExInt::write(WriteStream &) const
LYXERR0("should not happen");
}
} // namespace lyx

6
src/mathed/InsetMathExInt.h
View File

@ -17,7 +17,7 @@
// or \sum, \prod... for interfacing external programs
#include "InsetMathNest.h"
#include "support/strfwd.h"
namespace lyx {
@ -57,11 +57,13 @@ public:
void write(WriteStream & os) const;
///
InsetCode lyxCode() const { return MATH_EXINT_CODE; }
/// is this a sum, product, or whatever that we can handle?
/// note that this does not include integrals.
static bool isExIntOperator(docstring const &);
private:
virtual Inset * clone() const;
///
bool hasScripts() const;
///
docstring symbol_;
};

30
src/mathed/MathExtern.cpp
View File

@ -80,7 +80,6 @@ typedef bool TestItemFunc(MathAtom const &);
typedef MathAtom ReplaceArgumentFunc(const MathData & ar);
// try to extract a super/subscript
// modify iterator position to point behind the thing
bool extractScript(MathData & ar,
@ -356,7 +355,7 @@ void splitScripts(MathData & ar)
// leave alone sums and integrals
InsetMathSymbol const * sym =
script->nuc().front()->asSymbolInset();
if (sym && (sym->name() == "sum" || sym->name() == "int"))
if (sym && (InsetMathExInt::isExIntOperator(sym->name()) || sym->name() == "int"))
continue;
}
@ -705,25 +704,29 @@ bool testEqualSign(MathAtom const & at)
}
bool testSumSymbol(MathAtom const & p)
bool testSumLikeSymbol(MathAtom const & p)
{
return testSymbol(p, from_ascii("sum"));
return InsetMathExInt::isExIntOperator(p->name());
}
bool testSum(MathAtom const & at)
docstring testSumLike(MathAtom const & at)
{
return
testSumSymbol(at) ||
( at->asScriptInset()
if (testSumLikeSymbol(at))
return at->name();
if ( at->asScriptInset()
&& at->asScriptInset()->nuc().size()
&& testSumSymbol(at->asScriptInset()->nuc().back()) );
&& testSumLikeSymbol(at->asScriptInset()->nuc().back()) )
return at->asScriptInset()->nuc().back()->name();
return docstring();
}
// replace '\sum' ['_^'] f(x) sequences by a real InsetMathExInt
// and similar things, like \prod. The things we extract are
// determined by InsetMathExInt::isExIntOperator().
// assume 'extractDelims' ran before
void extractSums(MathData & ar)
void extractSumLike(MathData & ar)
{
// we need at least two items...
if (ar.size() < 2)
@ -736,11 +739,12 @@ void extractSums(MathData & ar)
MathData::iterator it = ar.begin() + i;
// is this a sum name?
if (!testSum(ar[i]))
docstring const opname = testSumLike(ar[i]);
if (opname.empty())
continue;
// create a proper inset as replacement
auto_ptr<InsetMathExInt> p(new InsetMathExInt(buf, from_ascii("sum")));
auto_ptr<InsetMathExInt> p(new InsetMathExInt(buf, opname));
// collect lower bound and summation index
InsetMathScript const * sub = ar[i]->asScriptInset();
@ -949,7 +953,7 @@ void extractStructure(MathData & ar, ExternalMath kind)
splitScripts(ar);
extractDelims(ar);
extractIntegrals(ar, kind);
extractSums(ar);
extractSumLike(ar);
extractNumbers(ar);
extractMatrices(ar);
extractFunctions(ar, kind);