X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fwildcard.h;h=42c874ffd74986604aba050fb2c3d1e372503847;hp=e55788e7b18d257ec7b17bd939892fb564f16d17;hb=def23d34c68a383ce3d7da0227b984c8291a3bf9;hpb=b9cd4b49ffbfbf3e1c36a2b594ec3148a5baca64

diff --git a/ginac/wildcard.h b/ginac/wildcard.h
index e55788e7..42c874ff 100644
--- a/ginac/wildcard.h
+++ b/ginac/wildcard.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's wildcard objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 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
@@ -28,8 +28,8 @@
 namespace GiNaC {
 
 
-/** This class acts as a wildcard for subs() and matches(). An integer label
- *  is used to identify different wildcards. */
+/** This class acts as a wildcard for subs(), match(), has() and find(). An
+ *  integer label is used to identify different wildcards. */
 class wildcard : public basic
 {
 	GINAC_DECLARE_REGISTERED_CLASS(wildcard, basic)
@@ -39,15 +39,21 @@ public:
 	/** Construct wildcard with specified label. */
 	wildcard(unsigned label);
 
-	// functions overriding virtual functions from bases classes
+	// functions overriding virtual functions from base classes
 public:
-	void print(const print_context & c, unsigned level = 0) const;
-	unsigned calchash(void) const;
 	bool match(const ex & pattern, lst & repl_lst) const;
 
+protected:
+	unsigned calchash() const;
+
 	// non-virtual functions in this class
 public:
-	unsigned get_label(void) const {return label;}
+	unsigned get_label() const {return label;}
+
+protected:
+	void do_print(const print_context & c, unsigned level) const;
+	void do_print_tree(const print_tree & c, unsigned level) const;
+	void do_print_python_repr(const print_python_repr & c, unsigned level) const;
 
 	// member variables
 private:
@@ -55,10 +61,12 @@ private:
 };
 
 
-// global functions
-inline const wildcard &ex_to_wildcard(const ex &e)
+// utility functions
+
+/** Specialization of is_exactly_a<wildcard>(obj) for wildcard objects. */
+template<> inline bool is_exactly_a<wildcard>(const basic & obj)
 {
-	return static_cast<const wildcard &>(*e.bp);
+        return obj.tinfo()==TINFO_wildcard;
 }
 
 /** Create a wildcard object with the specified label. */