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| | #ifndef _TAG_UTIL_H
#define _TAG_UTIL_H
#include "notmuch-client.h"
typedef struct _tag_operation_t tag_operation_t;
typedef struct _tag_op_list_t tag_op_list_t;
/* Use powers of 2 */
typedef enum {
TAG_FLAG_NONE = 0,
/* Operations are synced to maildir, if possible.
*/
TAG_FLAG_MAILDIR_SYNC = (1 << 0),
/* Remove all tags from message before applying list.
*/
TAG_FLAG_REMOVE_ALL = (1 << 1),
/* Don't try to avoid database operations. Useful when we
* know that message passed needs these operations.
*/
TAG_FLAG_PRE_OPTIMIZED = (1 << 2),
/* Accept strange tags that might be user error;
* intended for use by notmuch-restore.
*/
TAG_FLAG_BE_GENEROUS = (1 << 3)
} tag_op_flag_t;
/* These should obey the convention that fatal errors are negative,
* skipped lines are positive.
*/
typedef enum {
TAG_PARSE_OUT_OF_MEMORY = -1,
/* Line parsed successfuly. */
TAG_PARSE_SUCCESS = 0,
/* Line has a syntax error */
TAG_PARSE_INVALID = 1,
/* Line was blank or a comment */
TAG_PARSE_SKIPPED = 2
} tag_parse_status_t;
/* Parse a string of the following format:
*
* +<tag>|-<tag> [...] [--] <search-terms>
*
* Each line is interpreted similarly to "notmuch tag" command line
* arguments. The delimiter is one or more spaces ' '. Any characters
* in <tag> and <search-terms> MAY be hex encoded with %NN where NN is
* the hexadecimal value of the character. Any ' ' and '%' characters
* in <tag> and <search-terms> MUST be hex encoded (using %20 and %25,
* respectively). Any characters that are not part of <tag> or
* <search-terms> MUST NOT be hex encoded.
*
* Leading and trailing space ' ' is ignored. Empty lines and lines
* beginning with '#' are ignored.
*
*
* Output Parameters:
* ops contains a list of tag operations
* query_str the search terms.
*/
tag_parse_status_t
parse_tag_line (void *ctx, char *line,
tag_op_flag_t flags,
char **query_str, tag_op_list_t *ops);
/* Parse a command line of the following format:
*
* +<tag>|-<tag> [...] [--] <search-terms>
*
* Output Parameters:
* ops contains a list of tag operations
* query_str the search terms.
*
* The ops argument is not cleared.
*/
tag_parse_status_t
parse_tag_command_line (void *ctx, int argc, char **argv,
char **query_str, tag_op_list_t *ops);
/*
* Test tags for some forbidden cases.
*
* Relax the checks if 'remove' is true to allow removal of previously
* added forbidden tags.
*
* return: NULL if OK,
* explanatory message otherwise.
*/
const char *
illegal_tag (const char *tag, bool remove);
/*
* Create an empty list of tag operations
*
* ctx is passed to talloc
*/
tag_op_list_t *
tag_op_list_create (void *ctx);
/*
* Add a tag operation (delete iff remove == true) to a list.
* The list is expanded as necessary.
*/
int
tag_op_list_append (tag_op_list_t *list,
const char *tag,
bool remove);
/*
* Apply a list of tag operations, in order, to a given message.
*
* Flags can be bitwise ORed; see enum above for possibilies.
*/
notmuch_status_t
tag_op_list_apply (notmuch_message_t *message,
tag_op_list_t *tag_ops,
tag_op_flag_t flags);
/*
* Return the number of operations in a list
*/
size_t
tag_op_list_size (const tag_op_list_t *list);
/*
* Reset a list to contain no operations
*/
void
tag_op_list_reset (tag_op_list_t *list);
/*
* return the i'th tag in the list
*/
const char *
tag_op_list_tag (const tag_op_list_t *list, size_t i);
/*
* Is the i'th tag operation a remove?
*/
bool
tag_op_list_isremove (const tag_op_list_t *list, size_t i);
#endif
|