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tree.h
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tree.h
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/* tree.h -- abstract syntax tree
* Larry Greenfield
*
* Copyright (c) 1994-2017 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef TREE_H
#define TREE_H
#include "comparator.h"
#include "strarray.h"
/* abstract syntax tree for sieve */
typedef struct Commandlist commandlist_t;
typedef struct Test test_t;
typedef struct Testlist testlist_t;
typedef struct Comp comp_t;
struct Comp {
int match;
int relation;
int collation; /* only used where :comparator can be defined */
int index; /* only used where index extension is defined */
};
struct Test {
int type;
int ignore_err;
union {
test_t *t; /* not */
testlist_t *tl; /* anyof, allof */
strarray_t *sl; /* exists, ihave, valid_ext_list */
struct { /* it's a header or hasflag or string test */
comp_t comp;
strarray_t *sl;
strarray_t *pl;
} hhs;
struct { /* it's an address or envelope test */
comp_t comp;
strarray_t *sl;
strarray_t *pl;
int addrpart;
} ae;
struct { /* it's a body test */
comp_t comp;
int transform;
int offset;
strarray_t *content_types;
strarray_t *pl;
} b;
struct { /* size */
int t; /* tag */
int n; /* param */
} sz;
struct { /* it's a date test */
comp_t comp;
int zonetag;
int zone; /* time-zone offset in minutes */
int date_part;
char *header_name;
strarray_t *kl;
} dt;
struct { /* it's a mailbox or metadata or environment test */
comp_t comp;
char *extname;
char *keyname;
strarray_t *keylist;
} mm;
struct { /* its a duplicate test */
int idtype;
char *idval;
char *handle;
int seconds;
int last;
} dup;
} u;
};
struct Testlist {
test_t *t;
testlist_t *next;
};
struct Fileinto {
strarray_t *flags;
char *folder;
char *specialuse;
int copy;
int create;
};
struct Commandlist {
int type;
union {
char *str; /* its a reject or error action */
struct { /* it's an if statement */
test_t *t;
commandlist_t *do_then;
commandlist_t *do_else;
} i;
struct { /* it's an include action */
int location;
int once;
int optional;
char *script;
} inc;
struct { /* it's a set action */
int mod40; /* :lower or :upper */
int mod30; /* :lowerfirst or :upperfirst */
int mod20; /* :quotewildcard */
int mod15; /* :encodeurl */
int mod10; /* :length */
char *variable;
char *value;
} s;
struct { /* it's a keep action */
strarray_t *flags;
} k;
struct Fileinto f; /* it's a fileinto action */
struct { /* it's a flag action */
char *variable;
strarray_t *flags;
} fl;
struct { /* it's a redirect action */
char *address;
int copy;
int list;
} r;
struct { /* it's a vacation action */
char *subject;
int seconds;
strarray_t *addresses;
char *message;
char *from;
char *handle;
int mime;
struct Fileinto fcc;
} v;
struct { /* it's an (e)notify action */
char *method;
char *id;
char *from;
strarray_t *options;
int priority;
char *message;
struct Fileinto fcc;
} n;
struct { /* it's a denotify action */
comp_t comp;
char *pattern;
int priority;
} d;
struct { /* it's an addheader action */
int index;
char *name;
char *value;
} ah;
struct { /* it's a deleteheader action */
comp_t comp;
char *name;
strarray_t *values;
} dh;
} u;
struct Commandlist *next;
};
comp_t *canon_comptags(comp_t *c, sieve_script_t *parse_script);
test_t *new_test(int type, sieve_script_t *parse_script);
testlist_t *new_testlist(test_t *t, testlist_t *n);
commandlist_t *new_command(int type, sieve_script_t *parse_script);
commandlist_t *new_if(test_t *t, commandlist_t *y, commandlist_t *n);
void free_testlist(testlist_t *tl);
void free_test(test_t *t);
void free_tree(commandlist_t *cl);
#endif

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