pic.h revision 151498 
1214571Sdim// -*- C++ -*-
2214571Sdim/* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2003, 2005
3214571Sdim   Free Software Foundation, Inc.
4214571Sdim     Written by James Clark (jjc@jclark.com)
5214571Sdim
6214571SdimThis file is part of groff.
7214571Sdim
8214571Sdimgroff is free software; you can redistribute it and/or modify it under
9214571Sdimthe terms of the GNU General Public License as published by the Free
10214571SdimSoftware Foundation; either version 2, or (at your option) any later
11214571Sdimversion.
12214571Sdim
13214571Sdimgroff is distributed in the hope that it will be useful, but WITHOUT ANY
14214571SdimWARRANTY; without even the implied warranty of MERCHANTABILITY or
15214571SdimFITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16214571Sdimfor more details.
17214571Sdim
18214571SdimYou should have received a copy of the GNU General Public License along
19214571Sdimwith groff; see the file COPYING.  If not, write to the Free Software
20214571SdimFoundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
21214571Sdim
22214571Sdim#include "lib.h"
23214571Sdim
24214571Sdim#include <math.h>
25214571Sdim#include <stdlib.h>
26214571Sdim#include <errno.h>
27214571Sdim
28214571Sdim#ifdef NEED_DECLARATION_RAND
29214571Sdim#undef rand
30214571Sdimextern "C" {
31214571Sdim  int rand();
32214571Sdim}
33214571Sdim#endif /* NEED_DECLARATION_RAND */
34214571Sdim
35214571Sdim#ifdef NEED_DECLARATION_SRAND
36214571Sdim#undef srand
37214571Sdimextern "C" {
38214571Sdim#ifdef RET_TYPE_SRAND_IS_VOID
39214571Sdim  void srand(unsigned int);
40214571Sdim#else
41214571Sdim  int srand(unsigned int);
42214571Sdim#endif
43214571Sdim}
44214571Sdim#endif /* NEED_DECLARATION_SRAND */
45214571Sdim
46214571Sdim#ifndef HAVE_FMOD
47214571Sdimextern "C" {
48214571Sdim  double fmod(double, double);
49214571Sdim}
50214571Sdim#endif
51214571Sdim
52214571Sdim#include "assert.h"
53214571Sdim#include "cset.h"
54214571Sdim#include "stringclass.h"
55214571Sdim#include "errarg.h"
56214571Sdim#include "error.h"
57214571Sdim#include "position.h"
58214571Sdim#include "text.h"
59214571Sdim#include "output.h"
60214571Sdim
61214571Sdim#ifndef M_SQRT2
62214571Sdim#define M_SQRT2	1.41421356237309504880
63214571Sdim#endif
64214571Sdim
65214571Sdim#ifndef M_PI
66214571Sdim#define M_PI 3.14159265358979323846
67214571Sdim#endif
68214571Sdim
69214571Sdimclass input {
70214571Sdim  input *next;
71214571Sdimpublic:
72214571Sdim  input();
73214571Sdim  virtual ~input();
74214571Sdim  virtual int get() = 0;
75  virtual int peek() = 0;
76  virtual int get_location(const char **, int *);
77  friend class input_stack;
78  friend class copy_rest_thru_input;
79};
80
81class file_input : public input {
82  FILE *fp;
83  const char *filename;
84  int lineno;
85  string line;
86  const char *ptr;
87  int read_line();
88public:
89  file_input(FILE *, const char *);
90  ~file_input();
91  int get();
92  int peek();
93  int get_location(const char **, int *);
94};
95
96void lex_init(input *);
97int get_location(char **, int *);
98
99void do_copy(const char *file);
100void parse_init();
101void parse_cleanup();
102
103void lex_error(const char *message,
104	       const errarg &arg1 = empty_errarg,
105	       const errarg &arg2 = empty_errarg,
106	       const errarg &arg3 = empty_errarg);
107
108void lex_warning(const char *message,
109		 const errarg &arg1 = empty_errarg,
110		 const errarg &arg2 = empty_errarg,
111		 const errarg &arg3 = empty_errarg);
112
113void lex_cleanup();
114
115extern int flyback_flag;
116extern int command_char;
117// zero_length_line_flag is non-zero if zero-length lines are drawn
118// as dots by the output device
119extern int zero_length_line_flag;
120extern int driver_extension_flag;
121extern int compatible_flag;
122extern int safer_flag;
123extern char *graphname;
124