- debugmsg("add print",LOGLEVEL_PRINT);
- if (precedence<=upper_precedence) os << "(";
- numeric coeff;
- bool first = true;
- // first print the overall numeric coefficient, if present:
- if (!overall_coeff.is_zero()) {
- os << overall_coeff;
- first = false;
- }
- // then proceed with the remaining factors:
- for (epvector::const_iterator cit=seq.begin(); cit!=seq.end(); ++cit) {
- coeff = ex_to_numeric(cit->coeff);
- if (!first) {
- if (coeff.csgn()==-1) os << '-'; else os << '+';
- } else {
- if (coeff.csgn()==-1) os << '-';
+ if (is_a<print_tree>(c)) {
+
+ inherited::print(c, level);
+
+ } else if (is_a<print_csrc>(c)) {
+
+ if (precedence() <= level)
+ c.s << "(";
+
+ // Print arguments, separated by "+"
+ epvector::const_iterator it = seq.begin(), itend = seq.end();
+ while (it != itend) {
+
+ // If the coefficient is -1, it is replaced by a single minus sign
+ if (it->coeff.is_equal(_ex1)) {
+ it->rest.print(c, precedence());
+ } else if (it->coeff.is_equal(_ex_1)) {
+ c.s << "-";
+ it->rest.print(c, precedence());
+ } else if (ex_to<numeric>(it->coeff).numer().is_equal(_num1)) {
+ it->rest.print(c, precedence());
+ c.s << "/";
+ ex_to<numeric>(it->coeff).denom().print(c, precedence());
+ } else if (ex_to<numeric>(it->coeff).numer().is_equal(_num_1)) {
+ c.s << "-";
+ it->rest.print(c, precedence());
+ c.s << "/";
+ ex_to<numeric>(it->coeff).denom().print(c, precedence());
+ } else {
+ it->coeff.print(c, precedence());
+ c.s << "*";
+ it->rest.print(c, precedence());
+ }
+
+ // Separator is "+", except if the following expression would have a leading minus sign or the sign is sitting in parenthesis (as in a ctor)
+ ++it;
+ if (it != itend
+ && (is_a<print_csrc_cl_N>(c) // sign inside ctor arguments
+ || !(it->coeff.info(info_flags::negative) || (it->coeff.is_equal(_num1) && is_exactly_a<numeric>(it->rest) && it->rest.info(info_flags::negative)))))
+ c.s << "+";
+ }
+
+ if (!overall_coeff.is_zero()) {
+ if (overall_coeff.info(info_flags::positive)
+ || is_a<print_csrc_cl_N>(c)) // sign inside ctor argument
+ c.s << '+';
+ overall_coeff.print(c, precedence());
+ }
+
+ if (precedence() <= level)
+ c.s << ")";
+
+ } else if (is_a<print_python_repr>(c)) {
+
+ c.s << class_name() << '(';
+ op(0).print(c);
+ for (unsigned i=1; i<nops(); ++i) {
+ c.s << ',';
+ op(i).print(c);
+ }
+ c.s << ')';
+
+ } else {
+
+ if (precedence() <= level) {
+ if (is_a<print_latex>(c))
+ c.s << "{(";
+ else
+ c.s << "(";
+ }
+
+ numeric coeff;
+ bool first = true;
+
+ // First print the overall numeric coefficient, if present
+ if (!overall_coeff.is_zero()) {
+ if (!is_a<print_tree>(c))
+ overall_coeff.print(c, 0);
+ else
+ overall_coeff.print(c, precedence());