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Annotation of 43BSD/contrib/rn/head.h, revision 1.1

1.1     ! root        1: /* $Header: head.h,v 4.3 85/05/01 11:38:31 lwall Exp $
        !             2:  *
        !             3:  * $Log:       head.h,v $
        !             4:  * Revision 4.3  85/05/01  11:38:31  lwall
        !             5:  * Baseline for release with 4.3bsd.
        !             6:  * 
        !             7:  */
        !             8: 
        !             9: #define HEAD_FIRST 1
        !            10: 
        !            11: /* types of header lines (if only C really believed in enums)
        !            12:  * (These must stay in alphabetic order at least in the first letter.
        !            13:  * Within each letter it helps to arrange in increasing likelihood.)
        !            14:  */
        !            15: 
        !            16: #define PAST_HEADER    0       /* body */
        !            17: #define SOME_LINE      1       /* unrecognized */
        !            18: #define ARTID_LINE     2       /* article-i.d. */
        !            19: #define APPR_LINE      3       /* approved */
        !            20: #define DIST_LINE      4       /* distribution */
        !            21: #define DATE_LINE      5       /* date */
        !            22: #define RECEIVED_LINE  6       /* date-received */
        !            23: #define EXPIR_LINE     7       /* expires */
        !            24: #define FOLLOW_LINE    8       /* followup-to */
        !            25: #define FROM_LINE      9       /* from */
        !            26: #define KEYW_LINE      10      /* keywords */
        !            27: #define LINES_LINE     11      /* lines */
        !            28: #define MESSID_LINE    12      /* message-id */
        !            29: #define NFFR_LINE      13      /* nf-from */
        !            30: #define NFID_LINE      14      /* nf-id */
        !            31: #define NGS_LINE       15      /* newsgroups */
        !            32: #define ORG_LINE       16      /* organization */
        !            33: #define PATH_LINE      17      /* path */
        !            34: #define POSTED_LINE    18      /* posted */
        !            35: #define PVER_LINE      19      /* posting-version */
        !            36: #define REPLY_LINE     20      /* reply-to */
        !            37: #define REFS_LINE      21      /* references */
        !            38: #define RVER_LINE      22      /* relay-version */
        !            39: #define SENDER_LINE    23      /* sender */
        !            40: #define SUMRY_LINE     24      /* summary */
        !            41: #define SUBJ_LINE      25      /* subject */
        !            42: #define XREF_LINE      26      /* xref */
        !            43: 
        !            44: #define HEAD_LAST      27      /* one more than the last one above */
        !            45: 
        !            46: struct headtype {
        !            47:     char *ht_name;             /* header line identifier */
        !            48: #ifdef pdp11
        !            49:     short ht_minpos;
        !            50:     short ht_maxpos;
        !            51: #else
        !            52:     ART_POS ht_minpos;         /* pointer to beginning of line in article */
        !            53:     ART_POS ht_maxpos;         /* pointer to end of line in article */
        !            54: #endif
        !            55:     char ht_length;            /* could make these into nybbles but */
        !            56:     char ht_flags;             /* it wouldn't save space normally */
        !            57: };                             /* due to alignment considerations */
        !            58: 
        !            59: #define HT_HIDE 1      /* -h on this line */
        !            60: #define HT_MAGIC 2     /* do any special processing on this line */
        !            61: 
        !            62: /* This array must stay in the same order as the list above */
        !            63: 
        !            64: #ifndef DOINIT
        !            65: EXT struct headtype htype[HEAD_LAST];
        !            66: #else
        !            67: struct headtype htype[HEAD_LAST] = {
        !            68:  /* name             minpos   maxpos  length   flag */
        !            69:     {"BODY",           0,      0,      4,      0               },
        !            70:     {"unrecognized",   0,      0,      12,     0               },
        !            71:     {"article-i.d.",   0,      0,      12,     HT_HIDE         },
        !            72:     {"approved",       0,      0,      8,      HT_HIDE         },
        !            73:     {"distribution",   0,      0,      12,     0               },
        !            74:     {"date",           0,      0,      4,      0               },
        !            75:     {"date-received",  0,      0,      13,     0               },
        !            76:     {"expires",                0,      0,      7,      HT_HIDE|HT_MAGIC},
        !            77:     {"followup-to",    0,      0,      11,     0               },
        !            78:     {"from",           0,      0,      4,      0               },
        !            79:     {"keywords",       0,      0,      8,      0               },
        !            80:     {"lines",          0,      0,      5,      0               },
        !            81:     {"message-id",     0,      0,      10,     0               },
        !            82:     {"nf-from",                0,      0,      7,      HT_HIDE         },
        !            83:     {"nf-id",          0,      0,      5,      HT_HIDE         },
        !            84:     {"newsgroups",     0,      0,      10,     HT_MAGIC|HT_HIDE},
        !            85:     {"organization",   0,      0,      12,     0               },
        !            86:     {"path",           0,      0,      4,      HT_HIDE         },
        !            87:     {"posted",         0,      0,      6,      HT_HIDE         },
        !            88:     {"posting-version",        0,      0,      15,     HT_HIDE         },
        !            89:     {"reply-to",       0,      0,      8,      0               },
        !            90:     {"references",     0,      0,      10,     0               },
        !            91:     {"relay-version",  0,      0,      13,     HT_HIDE         },
        !            92:     {"sender",         0,      0,      6,      0               },
        !            93:     {"summary",                0,      0,      7,      0               },
        !            94:     {"subject",                0,      0,      7,      HT_MAGIC        },
        !            95:     {"xref",           0,      0,      4,      HT_HIDE         }
        !            96: };
        !            97: #endif
        !            98: 
        !            99: #ifdef ASYNC_PARSE
        !           100: EXT ART_NUM parsed_art INIT(0);
        !           101: #endif
        !           102: 
        !           103: EXT char in_header INIT(0);            /* are we decoding the header? */
        !           104: 
        !           105: #ifdef CACHESUBJ
        !           106:     EXT char **subj_list INIT(Null(char **));
        !           107: #endif
        !           108: 
        !           109: void   head_init();
        !           110: int    set_line_type();
        !           111: void   start_header();
        !           112: bool    parseline();
        !           113: #ifdef ASYNC_PARSE
        !           114:     int                parse_maybe();
        !           115: #endif
        !           116: char   *fetchsubj();
        !           117: char   *fetchlines();

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