namespace GiNaC {
-GINAC_IMPLEMENT_REGISTERED_CLASS(mul, expairseq)
+GINAC_IMPLEMENT_REGISTERED_CLASS_OPT(mul, expairseq,
+ print_func<print_context>(&mul::do_print).
+ print_func<print_latex>(&mul::do_print_latex).
+ print_func<print_csrc>(&mul::do_print_csrc).
+ print_func<print_tree>(&inherited::do_print_tree).
+ print_func<print_python_repr>(&mul::do_print_python_repr))
+
//////////
// default constructor
// functions overriding virtual functions from base classes
//////////
-// public
-void mul::print(const print_context & c, unsigned level) const
+void mul::print_overall_coeff(const print_context & c, const char *mul_sym) const
{
- if (is_a<print_tree>(c)) {
+ const numeric &coeff = ex_to<numeric>(overall_coeff);
+ if (coeff.csgn() == -1)
+ c.s << '-';
+ if (!coeff.is_equal(_num1) &&
+ !coeff.is_equal(_num_1)) {
+ if (coeff.is_rational()) {
+ if (coeff.is_negative())
+ (-coeff).print(c);
+ else
+ coeff.print(c);
+ } else {
+ if (coeff.csgn() == -1)
+ (-coeff).print(c, precedence());
+ else
+ coeff.print(c, precedence());
+ }
+ c.s << mul_sym;
+ }
+}
- inherited::print(c, level);
+void mul::do_print(const print_context & c, unsigned level) const
+{
+ if (precedence() <= level)
+ c.s << '(';
- } else if (is_a<print_csrc>(c)) {
+ print_overall_coeff(c, "*");
- if (precedence() <= level)
- c.s << "(";
+ epvector::const_iterator it = seq.begin(), itend = seq.end();
+ bool first = true;
+ while (it != itend) {
+ if (!first)
+ c.s << '*';
+ else
+ first = false;
+ recombine_pair_to_ex(*it).print(c, precedence());
+ ++it;
+ }
- if (!overall_coeff.is_equal(_ex1)) {
- overall_coeff.print(c, precedence());
- c.s << "*";
- }
+ if (precedence() <= level)
+ c.s << ')';
+}
- // Print arguments, separated by "*" or "/"
- epvector::const_iterator it = seq.begin(), itend = seq.end();
- while (it != itend) {
-
- // If the first argument is a negative integer power, it gets printed as "1.0/<expr>"
- bool needclosingparenthesis = false;
- if (it == seq.begin() && it->coeff.info(info_flags::negint)) {
- if (is_a<print_csrc_cl_N>(c)) {
- c.s << "recip(";
- needclosingparenthesis = true;
- } else
- c.s << "1.0/";
- }
+void mul::do_print_latex(const print_latex & c, unsigned level) const
+{
+ if (precedence() <= level)
+ c.s << "{(";
- // If the exponent is 1 or -1, it is left out
- if (it->coeff.is_equal(_ex1) || it->coeff.is_equal(_ex_1))
- it->rest.print(c, precedence());
- else if (it->coeff.info(info_flags::negint))
- // Outer parens around ex needed for broken GCC parser:
- (ex(power(it->rest, -ex_to<numeric>(it->coeff)))).print(c, level);
- else
- // Outer parens around ex needed for broken GCC parser:
- (ex(power(it->rest, ex_to<numeric>(it->coeff)))).print(c, level);
-
- if (needclosingparenthesis)
- c.s << ")";
-
- // Separator is "/" for negative integer powers, "*" otherwise
- ++it;
- if (it != itend) {
- if (it->coeff.info(info_flags::negint))
- c.s << "/";
- else
- c.s << "*";
- }
- }
+ print_overall_coeff(c, " ");
- if (precedence() <= level)
- c.s << ")";
+ // Separate factors into those with negative numeric exponent
+ // and all others
+ epvector::const_iterator it = seq.begin(), itend = seq.end();
+ exvector neg_powers, others;
+ while (it != itend) {
+ GINAC_ASSERT(is_exactly_a<numeric>(it->coeff));
+ if (ex_to<numeric>(it->coeff).is_negative())
+ neg_powers.push_back(recombine_pair_to_ex(expair(it->rest, -(it->coeff))));
+ else
+ others.push_back(recombine_pair_to_ex(*it));
+ ++it;
+ }
- } else if (is_a<print_python_repr>(c)) {
- c.s << class_name() << '(';
- op(0).print(c);
- for (size_t i=1; i<nops(); ++i) {
- c.s << ',';
- op(i).print(c);
- }
- c.s << ')';
- } else {
+ if (!neg_powers.empty()) {
- if (precedence() <= level) {
- if (is_a<print_latex>(c))
- c.s << "{(";
- else
- c.s << "(";
- }
+ // Factors with negative exponent are printed as a fraction
+ c.s << "\\frac{";
+ mul(others).eval().print(c);
+ c.s << "}{";
+ mul(neg_powers).eval().print(c);
+ c.s << "}";
- // First print the overall numeric coefficient
- const numeric &coeff = ex_to<numeric>(overall_coeff);
- if (coeff.csgn() == -1)
- c.s << '-';
- if (!coeff.is_equal(_num1) &&
- !coeff.is_equal(_num_1)) {
- if (coeff.is_rational()) {
- if (coeff.is_negative())
- (-coeff).print(c);
- else
- coeff.print(c);
- } else {
- if (coeff.csgn() == -1)
- (-coeff).print(c, precedence());
- else
- coeff.print(c, precedence());
- }
- if (is_a<print_latex>(c))
- c.s << ' ';
- else
- c.s << '*';
- }
+ } else {
- // Then proceed with the remaining factors
- epvector::const_iterator it = seq.begin(), itend = seq.end();
- if (is_a<print_latex>(c)) {
-
- // Separate factors into those with negative numeric exponent
- // and all others
- exvector neg_powers, others;
- while (it != itend) {
- GINAC_ASSERT(is_exactly_a<numeric>(it->coeff));
- if (ex_to<numeric>(it->coeff).is_negative())
- neg_powers.push_back(recombine_pair_to_ex(expair(it->rest, -(it->coeff))));
- else
- others.push_back(recombine_pair_to_ex(*it));
- ++it;
- }
+ // All other factors are printed in the ordinary way
+ exvector::const_iterator vit = others.begin(), vitend = others.end();
+ while (vit != vitend) {
+ c.s << ' ';
+ vit->print(c, precedence());
+ ++vit;
+ }
+ }
- if (!neg_powers.empty()) {
+ if (precedence() <= level)
+ c.s << ")}";
+}
- // Factors with negative exponent are printed as a fraction
- c.s << "\\frac{";
- mul(others).eval().print(c);
- c.s << "}{";
- mul(neg_powers).eval().print(c);
- c.s << "}";
+void mul::do_print_csrc(const print_csrc & c, unsigned level) const
+{
+ if (precedence() <= level)
+ c.s << "(";
- } else {
+ if (!overall_coeff.is_equal(_ex1)) {
+ overall_coeff.print(c, precedence());
+ c.s << "*";
+ }
- // All other factors are printed in the ordinary way
- exvector::const_iterator vit = others.begin(), vitend = others.end();
- while (vit != vitend) {
- c.s << ' ';
- vit->print(c, precedence());
- ++vit;
- }
- }
+ // Print arguments, separated by "*" or "/"
+ epvector::const_iterator it = seq.begin(), itend = seq.end();
+ while (it != itend) {
+
+ // If the first argument is a negative integer power, it gets printed as "1.0/<expr>"
+ bool needclosingparenthesis = false;
+ if (it == seq.begin() && it->coeff.info(info_flags::negint)) {
+ if (is_a<print_csrc_cl_N>(c)) {
+ c.s << "recip(";
+ needclosingparenthesis = true;
+ } else
+ c.s << "1.0/";
+ }
- } else {
+ // If the exponent is 1 or -1, it is left out
+ if (it->coeff.is_equal(_ex1) || it->coeff.is_equal(_ex_1))
+ it->rest.print(c, precedence());
+ else if (it->coeff.info(info_flags::negint))
+ // Outer parens around ex needed for broken GCC parser:
+ (ex(power(it->rest, -ex_to<numeric>(it->coeff)))).print(c, level);
+ else
+ // Outer parens around ex needed for broken GCC parser:
+ (ex(power(it->rest, ex_to<numeric>(it->coeff)))).print(c, level);
- bool first = true;
- while (it != itend) {
- if (!first)
- c.s << '*';
- else
- first = false;
- recombine_pair_to_ex(*it).print(c, precedence());
- ++it;
- }
- }
+ if (needclosingparenthesis)
+ c.s << ")";
- if (precedence() <= level) {
- if (is_a<print_latex>(c))
- c.s << ")}";
+ // Separator is "/" for negative integer powers, "*" otherwise
+ ++it;
+ if (it != itend) {
+ if (it->coeff.info(info_flags::negint))
+ c.s << "/";
else
- c.s << ")";
+ c.s << "*";
}
}
+
+ if (precedence() <= level)
+ c.s << ")";
+}
+
+void mul::do_print_python_repr(const print_python_repr & c, unsigned level) const
+{
+ c.s << class_name() << '(';
+ op(0).print(c);
+ for (size_t i=1; i<nops(); ++i) {
+ c.s << ',';
+ op(i).print(c);
+ }
+ c.s << ')';
}
bool mul::info(unsigned inf) const
return true;
}
-ex mul::algebraic_subs_mul(const lst & ls, const lst & lr, unsigned options) const
+ex mul::algebraic_subs_mul(const exmap & m, unsigned options) const
{
std::vector<bool> subsed(seq.size(), false);
exvector subsresult(seq.size());
- lst::const_iterator its, itr;
- for (its = ls.begin(), itr = lr.begin(); its != ls.end(); ++its, ++itr) {
+ for (exmap::const_iterator it = m.begin(); it != m.end(); ++it) {
- if (is_exactly_a<mul>(*its)) {
+ if (is_exactly_a<mul>(it->first)) {
int nummatches = std::numeric_limits<int>::max();
std::vector<bool> currsubsed(seq.size(), false);
bool succeed = true;
lst repls;
- for (size_t j=0; j<its->nops(); j++) {
+ for (size_t j=0; j<it->first.nops(); j++) {
bool found=false;
for (size_t k=0; k<nops(); k++) {
if (currsubsed[k] || subsed[k])
continue;
- if (tryfactsubs(op(k), its->op(j), nummatches, repls)) {
+ if (tryfactsubs(op(k), it->first.op(j), nummatches, repls)) {
currsubsed[k] = true;
found = true;
break;
subsresult[j] = op(j);
else {
foundfirstsubsedfactor = true;
- subsresult[j] = op(j) * power(itr->subs(ex(repls), subs_options::subs_no_pattern) / its->subs(ex(repls), subs_options::subs_no_pattern), nummatches);
+ subsresult[j] = op(j) * power(it->second.subs(ex(repls), subs_options::no_pattern) / it->first.subs(ex(repls), subs_options::no_pattern), nummatches);
}
subsed[j] = true;
}
lst repls;
for (size_t j=0; j<this->nops(); j++) {
- if (!subsed[j] && tryfactsubs(op(j), *its, nummatches, repls)) {
+ if (!subsed[j] && tryfactsubs(op(j), it->first, nummatches, repls)) {
subsed[j] = true;
- subsresult[j] = op(j) * power(itr->subs(ex(repls), subs_options::subs_no_pattern) / its->subs(ex(repls), subs_options::subs_no_pattern), nummatches);
+ subsresult[j] = op(j) * power(it->second.subs(ex(repls), subs_options::no_pattern) / it->first.subs(ex(repls), subs_options::no_pattern), nummatches);
}
}
}
}
}
if (!subsfound)
- return subs_one_level(ls, lr, options | subs_options::subs_algebraic);
+ return subs_one_level(m, options | subs_options::algebraic);
exvector ev; ev.reserve(nops());
for (size_t i=0; i<nops(); i++) {
git://www.ginac.de / ginac.git / blobdiff