//  @(#)header.hh 1.3 93/08/01
//
//  Contains definitions for class "Header".
//
//  Copyright (c) Steve Holden and Rich Burridge.
//                All rights reserved.
//
//  Permission is given to distribute these sources, as long as the
//  copyright messages are not removed, and no monies are exchanged.
//
//  No responsibility is taken for any errors or inaccuracies inherent
//  either to the comments or the code of this program, but if
//  reported to me then an attempt will be made to fix them.

#define  POSTSCRIPT_MAGIC  "%!"                  // First line of PS file.
#define  FROMHDR           "From:"
#define  FROM_HDR          "From "               // UNIX From header.
#define  APP_FROMHDR       "Apparently-From:"
#define  TOHDR             "To:"
#define  APP_TOHDR         "Apparently-To:"
#define  CCHDR             "Cc:"
#define  SUBJECTHDR        "Subject:"
#define  DATEHDR           "Date:"
#define  NEWSGROUPSHDR     "Newsgroups:"
#define  NEWSGROUPHDR      "Newsgroup:"
#define  REPLYHDR          "Reply-To:"
#define  CONTENT_LEN       "Content-Length:"

#define  MAXCONT      10     // Maximum no of continuation header lines.

class Header {
  public:

  char *from ;                      // From:
  char *from_ ;                     // From_ (UNIX from)
  char *app_from ;                  // Apparently_from:
  char *to[MAXCONT+1] ;             // To: (can have multiple lines)
  char *app_to ;                    // Apparently_to:
  char *cc[MAXCONT+1] ;             // Cc: (can have multiple lines)
  char *subject ;                   // Subject: (can be set from command line)
  char *gsubject ;                  // Global subject set from command line.
  char *date ;                      // Date:
  char *newsgroups ;                // Newsgroups: (news articles only)
  char *reply_to ;                  // Reply-to:
  char *content_len ;               // Content-Length:

       Header          () ;
  int  hdr_equal       (char *) ;
  void parse_headers   (int) ;
  void reset_headers   (void) ;
  void show_headers    (int) ;

  private:
  int  emptyline       (char *) ;
  int  toprint         (char *, char *) ;
  void get_extra_hdrs  (void) ;
  void get_header      (char *, char **) ;
  void get_mult_hdr    (char *, char **) ;
  void print_extra     (void) ;
  void show_mult_hdr   (char *, char **) ;
} ;