src/devices/grops/ps.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989, 1990, 1991, 1992, 2002, 2003
   3    Free Software Foundation, Inc.
   4      Written by James Clark (jjc@jclark.com)
   5
   6 This file is part of groff.
   7
   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 2, or (at your option) any later
  11 version.
  12
  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
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License along
  19 with groff; see the file COPYING.  If not, write to the Free Software
  20 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
  21
  22 class ps_output {
  23 public:
  24   ps_output(FILE *, int max_line_length);
  25   ps_output &put_string(const char *, int);
  26   ps_output &put_number(int);
  27   ps_output &put_fix_number(int);
  28   ps_output &put_float(double);
  29   ps_output &put_symbol(const char *);
  30   ps_output &put_color(unsigned int);
  31   ps_output &put_literal_symbol(const char *);
  32   ps_output &set_fixed_point(int);
  33   ps_output &simple_comment(const char *);
  34   ps_output &begin_comment(const char *);
  35   ps_output &comment_arg(const char *);
  36   ps_output &end_comment();
  37   ps_output &set_file(FILE *);
  38   ps_output &include_file(FILE *);
  39   ps_output &copy_file(FILE *);
  40   ps_output &end_line();
  41   ps_output &put_delimiter(char);
  42   ps_output &special(const char *);
  43   FILE *get_file();
  44 private:
  45   FILE *fp;
  46   int col;
  47   int max_line_length;          // not including newline
  48   int need_space;
  49   int fixed_point;
  50 };
  51
  52 inline FILE *ps_output::get_file()
  53 {
  54   return fp;
  55 }
  56
  57 enum resource_type {
  58   RESOURCE_FONT,
  59   RESOURCE_PROCSET,
  60   RESOURCE_FILE,
  61   RESOURCE_ENCODING,
  62   RESOURCE_FORM,
  63   RESOURCE_PATTERN
  64   };
  65
  66 struct resource;
  67
  68 extern string an_empty_string;
  69
  70 class resource_manager {
  71 public:
  72   resource_manager();
  73   ~resource_manager();
  74   void import_file(const char *filename, ps_output &);
  75   void need_font(const char *name);
  76   void print_header_comments(ps_output &);
  77   void document_setup(ps_output &);
  78   void output_prolog(ps_output &);
  79 private:
  80   unsigned extensions;
  81   unsigned language_level;
  82   resource *procset_resource;
  83   resource *resource_list;
  84   resource *lookup_resource(resource_type type, string &name,
  85                             string &version = an_empty_string,
  86                             unsigned revision = 0);
  87   resource *lookup_font(const char *name);
  88   void read_download_file();
  89   void supply_resource(resource *r, int rank, FILE *ofp, int is_document = 0);
  90   void process_file(int rank, file_case *fcp, FILE *ofp);
  91   resource *read_file_arg(const char **);
  92   resource *read_procset_arg(const char **);
  93   resource *read_font_arg(const char **);
  94   resource *read_resource_arg(const char **);
  95   void print_resources_comment(unsigned flag, FILE *ofp);
  96   void print_extensions_comment(FILE *ofp);
  97   void print_language_level_comment(FILE *ofp);
  98   int do_begin_resource(const char *ptr, int rank, file_case *fcp, FILE *ofp);
  99   int do_include_resource(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 100   int do_begin_document(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 101   int do_include_document(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 102   int do_begin_procset(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 103   int do_include_procset(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 104   int do_begin_font(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 105   int do_include_font(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 106   int do_begin_file(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 107   int do_include_file(const char *ptr, int rank, file_case *fp, FILE *ofp);
 108   int change_to_end_resource(const char *ptr, int rank, file_case *fp,
 109         FILE *ofp);
 110   int do_begin_preview(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 111   int do_begin_data(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 112   int do_begin_binary(const char *ptr, int rank, file_case *fcp, FILE *ofp);
 113 };
 114
 115 extern unsigned broken_flags;
 116
 117 // broken_flags is ored from these
 118
 119 enum {
 120   NO_SETUP_SECTION = 01,
 121   STRIP_PERCENT_BANG = 02,
 122   STRIP_STRUCTURE_COMMENTS = 04,
 123   USE_PS_ADOBE_2_0 = 010,
 124   NO_PAPERSIZE = 020
 125 };
 126
 127 #include "searchpath.h"
 128
 129 extern search_path include_search_path;