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#ifndef _TOK822_H_INCLUDED_
#define _TOK822_H_INCLUDED_
/*++
/* NAME
/* tok822 3h
/* SUMMARY
/* RFC822 token structures
/* SYNOPSIS
/* #include <tok822.h>
/* DESCRIPTION
/* .nf
/*
* Utility library.
*/
#include <vstring.h>
/*
* Global library.
*/
#include <resolve_clnt.h>
/*
* Internal address representation: a token tree.
*/
typedef struct TOK822 {
int type; /* token value, see below */
VSTRING *vstr; /* token contents */
struct TOK822 *prev; /* peer */
struct TOK822 *next; /* peer */
struct TOK822 *head; /* group members */
struct TOK822 *tail; /* group members */
struct TOK822 *owner; /* group owner */
} TOK822;
/*
* Token values for multi-character objects. Single-character operators are
* represented by their own character value.
*/
#define TOK822_MINTOK 256
#define TOK822_ATOM 256 /* non-special character sequence */
#define TOK822_QSTRING 257 /* stuff between "", not nesting */
#define TOK822_COMMENT 258 /* comment including (), may nest */
#define TOK822_DOMLIT 259 /* stuff between [] not nesting */
#define TOK822_ADDR 260 /* actually a token group */
#define TOK822_STARTGRP 261 /* start of named group */
#define TOK822_MAXTOK 261
/*
* tok822_node.c
*/
extern TOK822 *tok822_alloc(int, const char *);
extern TOK822 *tok822_free(TOK822 *);
/*
* tok822_tree.c
*/
extern TOK822 *tok822_append(TOK822 *, TOK822 *);
extern TOK822 *tok822_prepend(TOK822 *, TOK822 *);
extern TOK822 *tok822_cut_before(TOK822 *);
extern TOK822 *tok822_cut_after(TOK822 *);
extern TOK822 *tok822_unlink(TOK822 *);
extern TOK822 *tok822_sub_append(TOK822 *, TOK822 *);
extern TOK822 *tok822_sub_prepend(TOK822 *, TOK822 *);
extern TOK822 *tok822_sub_keep_before(TOK822 *, TOK822 *);
extern TOK822 *tok822_sub_keep_after(TOK822 *, TOK822 *);
extern TOK822 *tok822_free_tree(TOK822 *);
typedef int (*TOK822_ACTION) (TOK822 *);
extern int tok822_apply(TOK822 *, int, TOK822_ACTION);
extern TOK822 **tok822_grep(TOK822 *, int);
/*
* tok822_parse.c
*/
extern TOK822 *tok822_scan_limit(const char *, TOK822 **, int);
extern TOK822 *tok822_scan_addr(const char *);
extern TOK822 *tok822_parse_limit(const char *, int);
extern VSTRING *tok822_externalize(VSTRING *, TOK822 *, int);
extern VSTRING *tok822_internalize(VSTRING *, TOK822 *, int);
#define tok822_scan(cp, ptr) tok822_scan_limit((cp), (ptr), 0)
#define tok822_parse(cp) tok822_parse_limit((cp), 0)
#define TOK822_STR_NONE (0)
#define TOK822_STR_WIPE (1<<0)
#define TOK822_STR_TERM (1<<1)
#define TOK822_STR_LINE (1<<2)
#define TOK822_STR_TRNC (1<<3)
#define TOK822_STR_DEFL (TOK822_STR_WIPE | TOK822_STR_TERM)
#define TOK822_STR_HEAD (TOK822_STR_TERM | TOK822_STR_LINE | TOK822_STR_TRNC)
/*
* tok822_find.c
*/
extern TOK822 *tok822_find_type(TOK822 *, int);
extern TOK822 *tok822_rfind_type(TOK822 *, int);
/*
* tok822_rewrite.c
*/
extern TOK822 *tok822_rewrite(TOK822 *, const char *);
/*
* tok822_resolve.c
*/
#define tok822_resolve(t, r) tok822_resolve_from(RESOLVE_NULL_FROM, (t), (r))
extern void tok822_resolve_from(const char *, TOK822 *, RESOLVE_REPLY *);
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
#endif
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