generous use of subs_options::no_pattern

[ginac.git] / ginac / print.h

diff --git a/ginac/print.h b/ginac/print.h
index 1d99639ea38f0f7d4adb9cd6c251584dfad51356..8d4fc2f8612eeebe0367a2b4bf71bea454bd8bd9 100644 (file)
--- a/ginac/print.h
+++ b/ginac/print.h
@@ -3,7 +3,7 @@
  *  Definition of helper classes for expression output. */
 
 /*
- *  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
@@ -28,17 +28,34 @@
 
 namespace GiNaC {
 
+
+/*
+ *  The following classes remain publicly visible for compatibility
+ *  reasons only. New code should use the iostream manipulators defined
+ *  in operators.h instead.
+ */
+
+
+/** Flags to control the behavior of a print_context. */
+class print_options {
+public:
+       enum {
+               print_index_dimensions = 0x0001 ///< print the dimensions of indices
+       };
+};
+
+
 /** Context for default (ginsh-parsable) output. */
 class print_context
 {
 public:
        print_context();
-       print_context(std::ostream &);
+       print_context(std::ostream &, unsigned options = 0);
+       virtual ~print_context() {}
+       virtual print_context * duplicate() const {return new print_context(*this);}
 
        std::ostream & s; /**< stream to output to */
-private:
-       // dummy virtual function to make the class polymorphic
-       virtual void dummy(void) {}
+       unsigned options; /**< option flags */
 };
 
 /** Context for latex-parsable output. */
@@ -46,7 +63,26 @@ class print_latex : public print_context
 {
 public:
        print_latex();
-       print_latex(std::ostream &);
+       print_latex(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_latex(*this);}
+};
+
+/** Context for python pretty-print output. */
+class print_python : public print_context
+{
+public:
+       print_python();
+       print_python(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_python(*this);}
+};
+
+/** Context for python-parsable output. */
+class print_python_repr : public print_context
+{
+public:
+       print_python_repr();
+       print_python_repr(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_python_repr(*this);}
 };
 
 /** Context for tree-like output for debugging. */
@@ -54,7 +90,9 @@ class print_tree : public print_context
 {
 public:
        print_tree(unsigned d = 4);
-       print_tree(std::ostream &, unsigned d = 4);
+       print_tree(std::ostream &, unsigned options = 0, unsigned d = 4);
+       print_context * duplicate() const {return new print_tree(*this);}
+
        const unsigned delta_indent; /**< size of indentation step */
 };
 
@@ -63,23 +101,26 @@ class print_csrc : public print_context
 {
 public:
        print_csrc();
-       print_csrc(std::ostream &);
+       print_csrc(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_csrc(*this);}
 };
 
-/** Context for C source output using float numbers. */
+/** Context for C source output using float precision. */
 class print_csrc_float : public print_csrc
 {
 public:
        print_csrc_float();
-       print_csrc_float(std::ostream &);
+       print_csrc_float(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_csrc_float(*this);}
 };
 
-/** Context for C source output using double numbers. */
+/** Context for C source output using double precision. */
 class print_csrc_double : public print_csrc
 {
 public:
        print_csrc_double();
-       print_csrc_double(std::ostream &);
+       print_csrc_double(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_csrc_double(*this);}
 };
 
 /** Context for C source output using CLN numbers. */
@@ -87,7 +128,8 @@ class print_csrc_cl_N : public print_csrc
 {
 public:
        print_csrc_cl_N();
-       print_csrc_cl_N(std::ostream &);
+       print_csrc_cl_N(std::ostream &, unsigned options = 0);
+       print_context * duplicate() const {return new print_csrc_cl_N(*this);}
 };
 
 /** Check if obj is a T, including base classes. */