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pt-pr-code.h
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C/C++ Source or Header
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1997-08-20
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4KB
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185 lines
/*
Copyright (C) 1996 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined (octave_tree_print_code_h)
#define octave_tree_print_code_h 1
#if defined (__GNUG__)
#pragma interface
#endif
#include <string>
#include "pt-walk.h"
// How to print the code that the parse trees represent.
class
tree_print_code : public tree_walker
{
public:
tree_print_code (ostream& os_arg, const string& pfx = string (),
bool pr_orig_txt = true)
: os (os_arg), prefix (pfx), print_original_text (pr_orig_txt) { }
~tree_print_code (void) { }
void visit_argument_list (tree_argument_list&);
void visit_binary_expression (tree_binary_expression&);
void visit_break_command (tree_break_command&);
void visit_builtin (tree_builtin&);
void visit_colon_expression (tree_colon_expression&);
void visit_continue_command (tree_continue_command&);
void visit_for_command (tree_for_command&);
void visit_function (tree_function&);
void visit_function_header (tree_function&);
void visit_function_trailer (tree_function&);
void visit_global (tree_global&);
void visit_global_command (tree_global_command&);
void visit_global_init_list (tree_global_init_list&);
void visit_identifier (tree_identifier&);
void visit_if_clause (tree_if_clause&);
void visit_if_command (tree_if_command&);
void visit_if_command_list (tree_if_command_list&);
void visit_switch_case (tree_switch_case&);
void visit_switch_case_list (tree_switch_case_list&);
void visit_switch_command (tree_switch_command&);
void visit_index_expression (tree_index_expression&);
void visit_indirect_ref (tree_indirect_ref&);
void visit_matrix (tree_matrix&);
void visit_matrix_row (tree_matrix_row&);
void visit_multi_assignment_expression (tree_multi_assignment_expression&);
void visit_no_op_command (tree_no_op_command&);
void visit_oct_obj (tree_oct_obj&);
void visit_constant (tree_constant&);
void visit_parameter_list (tree_parameter_list&);
void visit_plot_command (tree_plot_command&);
void visit_plot_limits (plot_limits&);
void visit_plot_range (plot_range&);
void visit_postfix_expression (tree_postfix_expression&);
void visit_prefix_expression (tree_prefix_expression&);
void visit_return_command (tree_return_command&);
void visit_return_list (tree_return_list&);
void visit_simple_assignment_expression (tree_simple_assignment_expression&);
void visit_statement (tree_statement&);
void visit_statement_list (tree_statement_list&);
void visit_subplot (subplot&);
void visit_subplot_list (subplot_list&);
void visit_subplot_style (subplot_style&);
void visit_subplot_using (subplot_using&);
void visit_try_catch_command (tree_try_catch_command&);
void visit_unary_expression (tree_unary_expression&);
void visit_unwind_protect_command (tree_unwind_protect_command&);
void visit_while_command (tree_while_command&);
private:
ostream& os;
string prefix;
bool print_original_text;
static int curr_print_indent_level;
static bool beginning_of_line;
void reset_indent_level (void)
{ curr_print_indent_level = 0; }
void increment_indent_level (void)
{ curr_print_indent_level += 2; }
void decrement_indent_level (void)
{ curr_print_indent_level -= 2; }
void newline (void);
void indent (void);
void reset (void);
// Must create with an output stream!
tree_print_code (void);
// No copying!
tree_print_code (const tree_print_code&);
tree_print_code& operator = (const tree_print_code&);
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/