2 /* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2003, 2005, 2009
3 Free Software Foundation, Inc.
4 Written by James Clark (jjc@jclark.com)
6 This file is part of groff.
8 groff is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 #ifdef NEED_DECLARATION_RAND
32 #endif /* NEED_DECLARATION_RAND */
34 #ifdef NEED_DECLARATION_SRAND
37 #ifdef RET_TYPE_SRAND_IS_VOID
38 void srand(unsigned int);
40 int srand(unsigned int);
43 #endif /* NEED_DECLARATION_SRAND */
47 double fmod(double, double);
53 #include "stringclass.h"
61 #define M_SQRT2 1.41421356237309504880
65 #define M_PI 3.14159265358979323846
73 virtual int get() = 0;
74 virtual int peek() = 0;
75 virtual int get_location(const char **, int *);
76 friend class input_stack;
77 friend class copy_rest_thru_input;
80 class file_input : public input {
88 file_input(FILE *, const char *);
92 int get_location(const char **, int *);
95 void lex_init(input *);
96 int get_location(char **, int *);
98 void do_copy(const char *file);
100 void parse_cleanup();
102 void lex_error(const char *message,
103 const errarg &arg1 = empty_errarg,
104 const errarg &arg2 = empty_errarg,
105 const errarg &arg3 = empty_errarg);
107 void lex_warning(const char *message,
108 const errarg &arg1 = empty_errarg,
109 const errarg &arg2 = empty_errarg,
110 const errarg &arg3 = empty_errarg);
114 extern int flyback_flag;
115 extern int command_char;
116 // zero_length_line_flag is non-zero if zero-length lines are drawn
117 // as dots by the output device
118 extern int zero_length_line_flag;
119 extern int driver_extension_flag;
120 extern int compatible_flag;
121 extern int safer_flag;
122 extern char *graphname;