comment.h

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/*
 * Copyright (c) 1990,1991 Regents of The University of Michigan.
 * All Rights Reserved.  See COPYRIGHT.
 */
 
#ifndef PAPD_COMMENT_H
#define PAPD_COMMENT_H 1
 
#include <sys/types.h>
 
struct papfile;
struct sockaddr_at;
 
struct papd_comment {
    char        *c_begin;
    char        *c_end;
    int (*c_handler)(struct papfile *, struct papfile *, struct sockaddr_at *);
    int         c_flags;
};
 
#define CH_DONE     0
#define CH_MORE     1
#define CH_ERROR    -1
 
struct comstate {
    struct papd_comment *cs_comment;
    struct comstate *cs_prev;
    int         cs_flags;
};
 
extern struct papd_comment  *commatch(char *start, char *end,
                                      struct papd_comment *table);
extern struct comstate      *comstate;
extern struct papd_comment  magics[];
extern struct papd_comment  queries[];
extern struct papd_comment  headers[];
extern char         *comcont;
 
#define compeek()   (comstate==NULL?NULL:(comstate->cs_comment))
#define comgetflags()   (comstate->cs_flags)
#define comsetflags(f)  (comstate->cs_flags=(f))
 
/*
 * Comment flags.  0-15 reserved for "global" flags, 16-31 for specific
 * subtypes.
 */
#define C_FULL      (1<<0)              /* or prefix */
#define C_CONTINUE  (1<<1)
 
/*
 * Query subtypes.
 */
 
/*
 * Magic "number" subtypes.
 */
#define CM_NOPRINT  (1<<16)             /* or print */
 
void compop(void);
void compush(struct papd_comment *);
int comswitch(struct papd_comment *, int (*)(struct papfile *, struct papfile *,
              struct sockaddr_at *));
int comcmp(char *, char *, char *, int);
struct papd_comment *commatch(char *, char *, struct papd_comment *);
char *comtoken(char *, char *, char *, char *);
 
#endif /* PAPD_COMMENT_H */