* Implementation of GiNaC's wildcard objects. */
/*
- * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <iostream>
#include "wildcard.h"
-#include "print.h"
#include "archive.h"
#include "utils.h"
namespace GiNaC {
-GINAC_IMPLEMENT_REGISTERED_CLASS(wildcard, basic)
+GINAC_IMPLEMENT_REGISTERED_CLASS_OPT(wildcard, basic,
+ print_func<print_context>(&wildcard::do_print).
+ print_func<print_tree>(&wildcard::do_print_tree).
+ print_func<print_python_repr>(&wildcard::do_print_python_repr))
//////////
// default constructor
//////////
-wildcard::wildcard() : inherited(TINFO_wildcard), label(0)
+wildcard::wildcard() : label(0)
{
setflag(status_flags::evaluated | status_flags::expanded);
}
// other constructors
//////////
-wildcard::wildcard(unsigned l) : inherited(TINFO_wildcard), label(l)
+wildcard::wildcard(unsigned l) : label(l)
{
setflag(status_flags::evaluated | status_flags::expanded);
}
// archiving
//////////
-wildcard::wildcard(const archive_node &n, lst &sym_lst) : inherited(n, sym_lst)
+void wildcard::read_archive(const archive_node& n, lst& sym_lst)
{
+ inherited::read_archive(n, sym_lst);
n.find_unsigned("label", label);
setflag(status_flags::evaluated | status_flags::expanded);
}
+GINAC_BIND_UNARCHIVER(wildcard);
void wildcard::archive(archive_node &n) const
{
n.add_unsigned("label", label);
}
-DEFAULT_UNARCHIVE(wildcard)
-
//////////
// functions overriding virtual functions from base classes
//////////
return label < o.label ? -1 : 1;
}
-void wildcard::print(const print_context & c, unsigned level) const
+void wildcard::do_print(const print_context & c, unsigned level) const
+{
+ c.s << "$" << label;
+}
+
+void wildcard::do_print_tree(const print_tree & c, unsigned level) const
+{
+ c.s << std::string(level, ' ') << class_name() << "(" << label << ")" << " @" << this
+ << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
+ << std::endl;
+}
+
+void wildcard::do_print_python_repr(const print_python_repr & c, unsigned level) const
{
- if (is_a<print_tree>(c)) {
- c.s << std::string(level, ' ') << class_name() << " (" << label << ")"
- << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
- << std::endl;
- } else if (is_a<print_python_repr>(c)) {
- c.s << class_name() << '(' << label << ')';
- } else
- c.s << "$" << label;
+ c.s << class_name() << '(' << label << ')';
}
unsigned wildcard::calchash() const
{
// this is where the schoolbook method
- // (golden_ratio_hash(tinfo()) ^ label)
+ // (golden_ratio_hash(typeid(*this).name()) ^ label)
// is not good enough yet...
- hashvalue = golden_ratio_hash(golden_ratio_hash(tinfo()) ^ label);
+ const void* this_tinfo = (const void*)typeid(*this).name();
+ hashvalue = golden_ratio_hash(golden_ratio_hash((p_int)this_tinfo) ^ label);
setflag(status_flags::hash_calculated);
return hashvalue;
}
-bool wildcard::match(const ex & pattern, lst & repl_lst) const
+bool wildcard::match(const ex & pattern, exmap& repl_lst) const
{
// Wildcards must match each other exactly (this is required for
// subs() to work properly because in the final step it substitutes
return is_equal(ex_to<basic>(pattern));
}
+bool haswild(const ex & x)
+{
+ if (is_a<wildcard>(x))
+ return true;
+ for (size_t i=0; i<x.nops(); ++i)
+ if (haswild(x.op(i)))
+ return true;
+ return false;
+}
+
} // namespace GiNaC