3 * Definition of helper classes for expression output. */
6 * GiNaC Copyright (C) 1999-2001 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__
31 /** Context for default (ginsh-parsable) output. */
36 print_context(std::ostream &);
38 std::ostream & s; /**< stream to output to */
40 // dummy virtual function to make the class polymorphic
41 virtual void dummy(void) {}
44 /** Context for latex-parsable output. */
45 class print_latex : public print_context
49 print_latex(std::ostream &);
52 /** Context for python pretty-print output. */
53 class print_python : public print_context
57 print_python(std::ostream &);
60 /** Context for python-parsable output. */
61 class print_python_repr : public print_context
65 print_python_repr(std::ostream &);
68 /** Context for tree-like output for debugging. */
69 class print_tree : public print_context
72 print_tree(unsigned d = 4);
73 print_tree(std::ostream &, unsigned d = 4);
74 const unsigned delta_indent; /**< size of indentation step */
77 /** Base context for C source output. */
78 class print_csrc : public print_context
82 print_csrc(std::ostream &);
85 /** Context for C source output using float numbers. */
86 class print_csrc_float : public print_csrc
90 print_csrc_float(std::ostream &);
93 /** Context for C source output using double numbers. */
94 class print_csrc_double : public print_csrc
98 print_csrc_double(std::ostream &);
101 /** Context for C source output using CLN numbers. */
102 class print_csrc_cl_N : public print_csrc
106 print_csrc_cl_N(std::ostream &);
109 /** Check if obj is a T, including base classes. */
111 inline bool is_a(const print_context & obj)
112 { return dynamic_cast<const T *>(&obj)!=0; }
116 #endif // ndef __GINAC_BASIC_H__