X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Findexed.h;h=0147185ddd4630183ee7e78b23db134015fccadd;hp=b06fad1040a702a8354248f3ef68834297c88cc8;hb=6c9a7dfd6b92368b21a2fe5aaf3638bc849099ba;hpb=745d46b8492878030cc0decd1cb9bf2de2de03ff

diff --git a/ginac/indexed.h b/ginac/indexed.h
index b06fad10..0147185d 100644
--- a/ginac/indexed.h
+++ b/ginac/indexed.h
@@ -151,11 +151,12 @@ public:
 
 	// functions overriding virtual functions from base classes
 public:
-	void printraw(std::ostream & os) const;
-	void printtree(std::ostream & os, unsigned indent) const;
-	void print(std::ostream & os, unsigned upper_precedence=0) const;
+	void print(const print_context & c, unsigned level = 0) const;
 	bool info(unsigned inf) const;
 	ex eval(int level = 0) const;
+	int degree(const ex & s) const;
+	int ldegree(const ex & s) const;
+	ex coeff(const ex & s, int n = 1) const;
 	exvector get_free_indices(void) const;
 
 protected:
@@ -173,13 +174,18 @@ public:
 	 *  @see class info_flags */
 	bool all_index_values_are(unsigned inf) const;
 
+	/** Return a vector containing the object's indices. */
+	exvector get_indices(void) const;
+
 	/** Return a vector containing the dummy indices of the object, if any. */
 	exvector get_dummy_indices(void) const;
 
+	/** Return a vector containing the dummy indices in the contraction with
+	 *  another indexed object. */
+	exvector get_dummy_indices(const indexed & other) const;
+
 protected:
-	void printrawindices(std::ostream & os) const;
-	void printtreeindices(std::ostream & os, unsigned indent) const;
-	void printindices(std::ostream & os) const;
+	void printindices(const print_context & c, unsigned level) const;
 	void assert_all_indices_of_type_idx(void) const;
 
 	// member variables
@@ -209,6 +215,11 @@ public:
 	/** Register scalar product pair and its value. */
 	void add(const ex & v1, const ex & v2, const ex & sp);
 
+	/** Register list of vectors. This adds all possible pairs of products
+	 *  a.i * b.i with the value a*b (note that this is not a scalar vector
+	 *  product but an ordinary product of scalars). */
+	void add_vectors(const lst & l);
+
 	/** Clear all registered scalar products. */
 	void clear(void);