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recognize a few "well known functions"
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2993 a592a061-630c-0410-9148-cb99ea01b6c8
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9921635d78
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@ -124,7 +124,7 @@ namespace {
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if (pos == string::npos || pos < 15)
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break; // caret position not found
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pos -= 15; // skip the "on line ..." part
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if (expr[pos] == '*')
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if (expr[pos] == '*' || (pos > 0 && expr[pos - 1] == '*'))
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break; // two '*' in a row are definitely bad
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expr.insert(pos, "*");
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}
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@ -19,18 +19,6 @@ MathInset * MathExFuncInset::clone() const
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}
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void MathExFuncInset::write(WriteStream & os) const
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{
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os << '\\' << name_.c_str() << '{' << cell(0) << '}';
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}
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void MathExFuncInset::normalize(NormalStream & os) const
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{
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os << '[' << name_.c_str() << ' ' << cell(0) << ']';
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}
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void MathExFuncInset::metrics(MathMetricsInfo const & mi) const
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{
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mi_ = mi;
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@ -44,7 +32,33 @@ void MathExFuncInset::draw(Painter & pain, int x, int y) const
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}
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void MathExFuncInset::normalize(NormalStream & os) const
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{
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os << '[' << name_.c_str() << ' ' << cell(0) << ']';
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}
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void MathExFuncInset::maplize(MapleStream & os) const
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{
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os << name_.c_str() << '(' << cell(0) << ')';
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}
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void MathExFuncInset::mathmlize(MathMLStream & os) const
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{
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os << MTag(name_.c_str()) << cell(0) << ETag(name_.c_str());
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}
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void MathExFuncInset::octavize(OctaveStream & os) const
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{
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os << name_.c_str() << '(' << cell(0) << ')';
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}
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void MathExFuncInset::write(WriteStream & os) const
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{
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os << '\\' << name_.c_str() << '{' << cell(0) << '}';
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}
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@ -14,15 +14,20 @@ public:
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///
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MathInset * clone() const;
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///
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void write(WriteStream & os) const;
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///
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void normalize(NormalStream &) const;
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///
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void metrics(MathMetricsInfo const & st) const;
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///
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void draw(Painter &, int x, int y) const;
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///
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void normalize(NormalStream &) const;
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///
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void maplize(MapleStream &) const;
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///
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void mathmlize(MathMLStream &) const;
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///
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void octavize(OctaveStream &) const;
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///
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void write(WriteStream & os) const;
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private:
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///
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@ -15,10 +15,10 @@
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#include "debug.h"
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std::ostream & operator<<(ostream & os, MathArray const & ar)
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std::ostream & operator<<(std::ostream & os, MathArray const & ar)
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{
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NormalStream ws(os);
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ws << ar;
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NormalStream ns(os);
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ns << ar;
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return os;
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}
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@ -55,8 +55,9 @@ string charSequence(MathArray::const_iterator it, MathArray::const_iterator end)
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}
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void glueChars(MathArray & dat)
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void extractStrings(MathArray & dat)
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{
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//lyxerr << "\nStrings from: " << ar << "\n";
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MathArray ar;
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MathArray::const_iterator it = dat.begin();
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while (it != dat.end()) {
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@ -71,6 +72,7 @@ void glueChars(MathArray & dat)
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}
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}
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ar.swap(dat);
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//lyxerr << "\nStrings to: " << ar << "\n";
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}
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@ -110,6 +112,7 @@ MathInset * singleItem(MathArray & ar)
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void extractMatrices(MathArray & ar)
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{
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lyxerr << "\nMatrices from: " << ar << "\n";
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for (MathArray::iterator it = ar.begin(); it != ar.end(); ++it) {
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if (!it->nucleus())
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continue;
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@ -120,39 +123,59 @@ void extractMatrices(MathArray & ar)
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if (!arr || !arr->asArrayInset())
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continue;
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*it = MathAtom(new MathMatrixInset(*(arr->asArrayInset())));
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lyxerr << "\nMatrices to: " << ar << "\n";
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}
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}
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// convert this inset somehow to a string
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string extractString(MathInset * p)
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{
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if (p && p->getChar())
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return string(1, p->getChar());
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if (p && p->asStringInset())
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return p->asStringInset()->str();
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return string();
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}
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// replace '('...')' sequences by a real MathDelimInset
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void extractDelims(MathArray & ar) {
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// use indices rather than iterators for the loop because we are going
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// to modify the array.
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lyxerr << "\nDelims from: " << ar << "\n";
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for (MathArray::size_type i = 0; i < ar.size(); ++i) {
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MathArray::iterator it = ar.begin() + i;
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if (!it->nucleus())
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continue;
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if ((*it)->getChar() != '(')
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if (extractString(it->nucleus()) != "(")
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continue;
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// search last closing paranthesis
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MathArray::iterator et = ar.end();
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for (MathArray::iterator jt = it + 1; jt != ar.end(); ++jt)
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if ((*jt)->getChar() == ')')
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et = jt;
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if (et == ar.end())
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// search matching closing paranthesis
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int level = 1;
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MathArray::iterator jt = it + 1;
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for (; jt != ar.end(); ++jt) {
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string s = extractString(jt->nucleus());
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if (s == "(")
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++level;
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if (s == ")")
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--level;
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if (level == 0)
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break;
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}
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if (jt == ar.end())
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continue;
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// create a proper deliminset
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MathAtom at(new MathDelimInset("(", ")"));
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at->cell(0) = MathArray(it + 1, et);
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at->cell(0) = MathArray(it + 1, jt);
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// replace the original stuff by the new inset
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ar.erase(it + 1, et + 1);
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ar.erase(it + 1, jt + 1);
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*it = at;
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lyxerr << "\nDelims to: " << ar << "\n";
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}
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}
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// replace 'f' '(...)' and 'f' '^n' '(...)' sequences by a real MathExFuncInset
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// assume 'extractDelims' ran before
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void extractFunctions(MathArray & ar)
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{
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@ -160,6 +183,7 @@ void extractFunctions(MathArray & ar)
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if (ar.size() <= 1)
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return;
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lyxerr << "\nFunctions from: " << ar << "\n";
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for (MathArray::size_type i = 0; i < ar.size() - 1; ++i) {
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MathArray::iterator it = ar.begin() + i;
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@ -197,13 +221,14 @@ void extractFunctions(MathArray & ar)
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// remove the source of the argument from the array
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ar.erase(jt);
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lyxerr << "\nFunctions to: " << ar << "\n";
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}
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}
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void extractStructure(MathArray & ar)
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{
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glueChars(ar);
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extractStrings(ar);
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extractMatrices(ar);
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extractDelims(ar);
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extractFunctions(ar);
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@ -213,7 +238,7 @@ void extractStructure(MathArray & ar)
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void write(MathArray const & dat, WriteStream & wi)
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{
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MathArray ar = dat;
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glueChars(ar);
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extractStrings(ar);
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for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) {
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MathInset const * p = it->nucleus();
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if (it + 1 != ar.end()) {
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@ -228,21 +253,10 @@ void write(MathArray const & dat, WriteStream & wi)
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}
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void normalize(MathArray const & dat, NormalStream & os)
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void normalize(MathArray const & ar, NormalStream & os)
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{
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MathArray ar = dat;
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glueChars(ar);
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for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) {
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MathInset const * p = it->nucleus();
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if (it + 1 != ar.end()) {
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if (MathScriptInset const * q = asScript(it)) {
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q->normalize(p, os);
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++it;
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continue;
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}
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}
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p->normalize(os);
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}
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for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it)
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(*it)->normalize(os);
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}
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@ -48,6 +48,7 @@ class MathHullInset;
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class MathMatrixInset;
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class MathNestInset;
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class MathScriptInset;
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class MathStringInset;
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class MathSpaceInset;
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class MathMacroTemplate;
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@ -170,34 +171,23 @@ public:
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///
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virtual bool covers(int x, int y) const;
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/// identifies NestInsets
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virtual MathNestInset * asNestInset() { return 0; }
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/// identifies CharInsets
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virtual MathCharInset const * asCharInset() const { return 0; }
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/// identifies ScriptInsets
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virtual MathScriptInset * asScriptInset() { return 0; }
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virtual MathScriptInset const * asScriptInset() const { return 0; }
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/// identifies HullInsets
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virtual MathHullInset * asHullInset() { return 0; }
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virtual MathHullInset const * asHullInset() const { return 0; }
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/// identifies SpaceInset
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virtual MathSpaceInset * asSpaceInset() { return 0; }
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/// identifies GridInset
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virtual MathGridInset * asGridInset() { return 0; }
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/// identifies ArrayInsets
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/// identifies certain types of insets
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virtual MathArrayInset * asArrayInset() { return 0; }
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/// identifies MatrixInsets
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virtual MathMatrixInset const * asMatrixInset() const { return 0; }
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/// identifies BoxInsets
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virtual MathBoxInset * asBoxInset() { return 0; }
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/// identifies DelimInsets
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virtual MathCharInset const * asCharInset() const { return 0; }
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virtual MathDelimInset * asDelimInset() { return 0; }
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virtual MathDelimInset const * asDelimInset() const { return 0; }
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/// identifies FuncInsets
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virtual MathFuncInset * asFuncInset() { return 0; }
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/// identifies macro templates
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virtual MathGridInset * asGridInset() { return 0; }
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virtual MathHullInset * asHullInset() { return 0; }
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virtual MathHullInset const * asHullInset() const { return 0; }
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virtual MathMacroTemplate * asMacroTemplate() { return 0; }
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/// identifies hyperactive insets
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virtual MathMatrixInset const * asMatrixInset() const { return 0; }
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virtual MathNestInset * asNestInset() { return 0; }
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virtual MathScriptInset * asScriptInset() { return 0; }
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virtual MathScriptInset const * asScriptInset() const { return 0; }
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virtual MathSpaceInset * asSpaceInset() { return 0; }
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virtual MathStringInset * asStringInset() { return 0; }
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virtual UpdatableInset * asHyperActiveInset() const { return 0; }
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/// identifies things that can get scripts
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@ -22,10 +22,6 @@ public:
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void metrics(MathMetricsInfo const & st) const;
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///
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void draw(Painter &, int x, int y) const;
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///
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void write(WriteStream & os) const;
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///
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void normalize(NormalStream &) const;
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///
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int ascent() const;
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///
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@ -33,11 +29,20 @@ public:
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///
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int width() const;
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///
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string str() const { return str_; }
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///
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MathStringInset * asStringInset() { return this; }
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///
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void normalize(NormalStream &) const;
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///
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void octavize(OctaveStream &) const;
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///
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void maplize(MapleStream &) const;
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///
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void mathmlize(MathMLStream &) const;
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///
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void write(WriteStream & os) const;
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private:
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/// the string
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