3 * Definition of helper classes for expression output. */
6 * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef __GINAC_PRINT_H__
24 #define __GINAC_PRINT_H__
29 #include "class_info.h"
34 /** This class stores information about a registered print_context class. */
35 class print_context_options {
37 print_context_options(const char *n, const char *p, unsigned i)
38 : name(n), parent_name(p), id(i) {}
40 const char *get_name() const { return name; }
41 const char *get_parent_name() const { return parent_name; }
42 unsigned get_id() const { return id; }
45 const char *name; /**< Class name. */
46 const char *parent_name; /**< Name of superclass. */
47 unsigned id; /**< ID number (assigned automatically). */
50 typedef class_info<print_context_options> print_context_class_info;
53 /** Flags to control the behavior of a print_context. */
57 print_index_dimensions = 0x0001 ///< print the dimensions of indices
62 /** Macro for inclusion in the declaration of a print_context class.
63 * It declares some functions that are common to all classes derived
64 * from 'print_context' as well as all required stuff for the GiNaC
66 #define GINAC_DECLARE_PRINT_CONTEXT(classname, supername) \
68 typedef supername inherited; \
69 friend class function_options; \
71 static GiNaC::print_context_class_info reg_info; \
73 virtual const GiNaC::print_context_class_info &get_class_info() const { return reg_info; } \
74 virtual const char *class_name() const { return reg_info.options.get_name(); } \
77 classname * duplicate() const { return new classname(*this); } \
80 /** Macro for inclusion in the implementation of each print_context class. */
81 #define GINAC_IMPLEMENT_PRINT_CONTEXT(classname, supername) \
82 GiNaC::print_context_class_info classname::reg_info = GiNaC::print_context_class_info(print_context_options(#classname, #supername, next_print_context_id++));
84 extern unsigned next_print_context_id;
87 /** Base class for print_contexts. */
90 GINAC_DECLARE_PRINT_CONTEXT(print_context, void)
92 print_context(std::ostream &, unsigned options = 0);
93 virtual ~print_context() {}
95 std::ostream & s; /**< stream to output to */
96 unsigned options; /**< option flags */
99 /** Context for default (ginsh-parsable) output. */
100 class print_dflt : public print_context
102 GINAC_DECLARE_PRINT_CONTEXT(print_dflt, print_context)
104 print_dflt(std::ostream &, unsigned options = 0);
107 /** Context for latex-parsable output. */
108 class print_latex : public print_context
110 GINAC_DECLARE_PRINT_CONTEXT(print_latex, print_context)
112 print_latex(std::ostream &, unsigned options = 0);
115 /** Context for python pretty-print output. */
116 class print_python : public print_context
118 GINAC_DECLARE_PRINT_CONTEXT(print_python, print_context)
120 print_python(std::ostream &, unsigned options = 0);
123 /** Context for python-parsable output. */
124 class print_python_repr : public print_context
126 GINAC_DECLARE_PRINT_CONTEXT(print_python_repr, print_context)
128 print_python_repr(std::ostream &, unsigned options = 0);
131 /** Context for tree-like output for debugging. */
132 class print_tree : public print_context
134 GINAC_DECLARE_PRINT_CONTEXT(print_tree, print_context)
136 print_tree(unsigned d);
137 print_tree(std::ostream &, unsigned options = 0, unsigned d = 4);
139 const unsigned delta_indent; /**< size of indentation step */
142 /** Base context for C source output. */
143 class print_csrc : public print_context
145 GINAC_DECLARE_PRINT_CONTEXT(print_csrc, print_context)
147 print_csrc(std::ostream &, unsigned options = 0);
150 /** Context for C source output using float precision. */
151 class print_csrc_float : public print_csrc
153 GINAC_DECLARE_PRINT_CONTEXT(print_csrc_float, print_csrc)
155 print_csrc_float(std::ostream &, unsigned options = 0);
158 /** Context for C source output using double precision. */
159 class print_csrc_double : public print_csrc
161 GINAC_DECLARE_PRINT_CONTEXT(print_csrc_double, print_csrc)
163 print_csrc_double(std::ostream &, unsigned options = 0);
166 /** Context for C source output using CLN numbers. */
167 class print_csrc_cl_N : public print_csrc
169 GINAC_DECLARE_PRINT_CONTEXT(print_csrc_cl_N, print_csrc)
171 print_csrc_cl_N(std::ostream &, unsigned options = 0);
174 /** Check if obj is a T, including base classes. */
176 inline bool is_a(const print_context & obj)
177 { return dynamic_cast<const T *>(&obj) != 0; }
181 #endif // ndef __GINAC_BASIC_H__