mirror of
https://git.notmuchmail.org/git/notmuch
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lib: factor out prefix related code to its own file
Reduce the size of database.cc, and limit the scope of prefix_table, make sure it's accessed via a well-defined internal API.
This commit is contained in:
David Bremner
parent
e34e2a68b6
commit
3b40978241
4 changed files with 227 additions and 194 deletions
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@ -60,7 +60,8 @@ libnotmuch_cxx_srcs = \
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$(dir)/regexp-fields.cc \
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$(dir)/thread.cc \
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$(dir)/thread-fp.cc \
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$(dir)/features.cc
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$(dir)/features.cc \
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$(dir)/prefix.cc
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libnotmuch_modules := $(libnotmuch_c_srcs:.c=.o) $(libnotmuch_cxx_srcs:.cc=.o)
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@ -277,4 +277,11 @@ _notmuch_database_parse_features (const void *ctx, const char *features, unsigne
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char *
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_notmuch_database_print_features (const void *ctx, unsigned int features);
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/* prefix.cc */
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notmuch_status_t
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_notmuch_database_setup_standard_query_fields (notmuch_database_t *notmuch);
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notmuch_status_t
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_notmuch_database_setup_user_query_fields (notmuch_database_t *notmuch);
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#endif
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201
lib/database.cc
201
lib/database.cc
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@ -263,80 +263,6 @@ _notmuch_database_mode (notmuch_database_t *notmuch)
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* same thread.
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*/
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/* With these prefix values we follow the conventions published here:
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*
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* https://xapian.org/docs/omega/termprefixes.html
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*
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* as much as makes sense. Note that I took some liberty in matching
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* the reserved prefix values to notmuch concepts, (for example, 'G'
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* is documented as "newsGroup (or similar entity - e.g. a web forum
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* name)", for which I think the thread is the closest analogue in
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* notmuch. This in spite of the fact that we will eventually be
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* storing mailing-list messages where 'G' for "mailing list name"
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* might be even a closer analogue. I'm treating the single-character
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* prefixes preferentially for core notmuch concepts (which will be
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* nearly universal to all mail messages).
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*/
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static const
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prefix_t prefix_table[] = {
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/* name term prefix flags */
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{ "type", "T", NOTMUCH_FIELD_NO_FLAGS },
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{ "reference", "XREFERENCE", NOTMUCH_FIELD_NO_FLAGS },
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{ "replyto", "XREPLYTO", NOTMUCH_FIELD_NO_FLAGS },
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{ "directory", "XDIRECTORY", NOTMUCH_FIELD_NO_FLAGS },
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{ "file-direntry", "XFDIRENTRY", NOTMUCH_FIELD_NO_FLAGS },
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{ "directory-direntry", "XDDIRENTRY", NOTMUCH_FIELD_NO_FLAGS },
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{ "body", "", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "thread", "G", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "tag", "K", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "is", "K", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "id", "Q", NOTMUCH_FIELD_EXTERNAL },
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{ "mid", "Q", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "path", "P", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "property", "XPROPERTY", NOTMUCH_FIELD_EXTERNAL },
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/*
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* Unconditionally add ':' to reduce potential ambiguity with
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* overlapping prefixes and/or terms that start with capital
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* letters. See Xapian document termprefixes.html for related
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* discussion.
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*/
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{ "folder", "XFOLDER:", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "date", NULL, NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "query", NULL, NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "from", "XFROM", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC |
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NOTMUCH_FIELD_PROCESSOR },
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{ "to", "XTO", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "attachment", "XATTACHMENT", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "mimetype", "XMIMETYPE", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "subject", "XSUBJECT", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC |
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NOTMUCH_FIELD_PROCESSOR },
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};
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static void
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_setup_query_field_default (const prefix_t *prefix, notmuch_database_t *notmuch)
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{
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if (prefix->prefix)
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notmuch->query_parser->add_prefix ("", prefix->prefix);
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if (prefix->flags & NOTMUCH_FIELD_PROBABILISTIC)
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notmuch->query_parser->add_prefix (prefix->name, prefix->prefix);
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else
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notmuch->query_parser->add_boolean_prefix (prefix->name, prefix->prefix);
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}
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notmuch_string_map_iterator_t *
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_notmuch_database_user_headers (notmuch_database_t *notmuch)
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@ -344,118 +270,6 @@ _notmuch_database_user_headers (notmuch_database_t *notmuch)
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return _notmuch_string_map_iterator_create (notmuch->user_header, "", false);
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}
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const char *
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_user_prefix (void *ctx, const char *name)
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{
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return talloc_asprintf (ctx, "XU%s:", name);
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}
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static notmuch_status_t
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_setup_user_query_fields (notmuch_database_t *notmuch)
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{
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notmuch_config_list_t *list;
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notmuch_status_t status;
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notmuch->user_prefix = _notmuch_string_map_create (notmuch);
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if (notmuch->user_prefix == NULL)
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return NOTMUCH_STATUS_OUT_OF_MEMORY;
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notmuch->user_header = _notmuch_string_map_create (notmuch);
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if (notmuch->user_header == NULL)
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return NOTMUCH_STATUS_OUT_OF_MEMORY;
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status = notmuch_database_get_config_list (notmuch, CONFIG_HEADER_PREFIX, &list);
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if (status)
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return status;
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for (; notmuch_config_list_valid (list); notmuch_config_list_move_to_next (list)) {
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prefix_t query_field;
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const char *key = notmuch_config_list_key (list)
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+ sizeof (CONFIG_HEADER_PREFIX) - 1;
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_notmuch_string_map_append (notmuch->user_prefix,
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key,
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_user_prefix (notmuch, key));
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_notmuch_string_map_append (notmuch->user_header,
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key,
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notmuch_config_list_value (list));
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query_field.name = talloc_strdup (notmuch, key);
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query_field.prefix = _user_prefix (notmuch, key);
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query_field.flags = NOTMUCH_FIELD_PROBABILISTIC
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| NOTMUCH_FIELD_EXTERNAL;
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_setup_query_field_default (&query_field, notmuch);
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}
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notmuch_config_list_destroy (list);
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return NOTMUCH_STATUS_SUCCESS;
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}
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static void
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_setup_query_field (const prefix_t *prefix, notmuch_database_t *notmuch)
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{
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if (prefix->flags & NOTMUCH_FIELD_PROCESSOR) {
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Xapian::FieldProcessor *fp;
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if (STRNCMP_LITERAL (prefix->name, "date") == 0)
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fp = (new DateFieldProcessor(NOTMUCH_VALUE_TIMESTAMP))->release ();
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else if (STRNCMP_LITERAL(prefix->name, "query") == 0)
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fp = (new QueryFieldProcessor (*notmuch->query_parser, notmuch))->release ();
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else if (STRNCMP_LITERAL (prefix->name, "thread") == 0)
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fp = (new ThreadFieldProcessor (*notmuch->query_parser, notmuch))->release ();
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else
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fp = (new RegexpFieldProcessor (prefix->name, prefix->flags,
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*notmuch->query_parser, notmuch))->release ();
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/* we treat all field-processor fields as boolean in order to get the raw input */
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if (prefix->prefix)
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notmuch->query_parser->add_prefix ("", prefix->prefix);
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notmuch->query_parser->add_boolean_prefix (prefix->name, fp);
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} else {
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_setup_query_field_default (prefix, notmuch);
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}
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}
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const char *
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_find_prefix (const char *name)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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if (strcmp (name, prefix_table[i].name) == 0)
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return prefix_table[i].prefix;
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}
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INTERNAL_ERROR ("No prefix exists for '%s'\n", name);
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return "";
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}
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/* Like find prefix, but include the possibility of user defined
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* prefixes specific to this database */
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const char *
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_notmuch_database_prefix (notmuch_database_t *notmuch, const char *name)
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{
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unsigned int i;
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/*XXX TODO: reduce code duplication */
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for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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if (strcmp (name, prefix_table[i].name) == 0)
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return prefix_table[i].prefix;
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}
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if (notmuch->user_prefix)
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return _notmuch_string_map_get (notmuch->user_prefix, name);
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return NULL;
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}
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const char *
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notmuch_status_to_string (notmuch_status_t status)
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{
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@ -952,13 +766,14 @@ notmuch_database_open_verbose (const char *path,
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notmuch->query_parser->add_rangeprocessor (notmuch->date_range_processor);
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notmuch->query_parser->add_rangeprocessor (notmuch->last_mod_range_processor);
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for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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const prefix_t *prefix = &prefix_table[i];
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if (prefix->flags & NOTMUCH_FIELD_EXTERNAL) {
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_setup_query_field (prefix, notmuch);
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}
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}
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status = _setup_user_query_fields (notmuch);
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status = _notmuch_database_setup_standard_query_fields (notmuch);
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if (status)
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goto DONE;
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status = _notmuch_database_setup_user_query_fields (notmuch);
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if (status)
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goto DONE;
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} catch (const Xapian::Error &error) {
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IGNORE_RESULT (asprintf (&message, "A Xapian exception occurred opening database: %s\n",
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error.get_msg ().c_str ()));
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210
lib/prefix.cc
Normal file
210
lib/prefix.cc
Normal file
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@ -0,0 +1,210 @@
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#include "database-private.h"
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#include "query-fp.h"
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#include "thread-fp.h"
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#include "regexp-fields.h"
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#include "parse-time-vrp.h"
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typedef struct {
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const char *name;
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const char *prefix;
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notmuch_field_flag_t flags;
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} prefix_t;
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/* With these prefix values we follow the conventions published here:
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*
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* https://xapian.org/docs/omega/termprefixes.html
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*
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* as much as makes sense. Note that I took some liberty in matching
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* the reserved prefix values to notmuch concepts, (for example, 'G'
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* is documented as "newsGroup (or similar entity - e.g. a web forum
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* name)", for which I think the thread is the closest analogue in
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* notmuch. This in spite of the fact that we will eventually be
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* storing mailing-list messages where 'G' for "mailing list name"
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* might be even a closer analogue. I'm treating the single-character
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* prefixes preferentially for core notmuch concepts (which will be
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* nearly universal to all mail messages).
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*/
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static const
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prefix_t prefix_table[] = {
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/* name term prefix flags */
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{ "type", "T", NOTMUCH_FIELD_NO_FLAGS },
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{ "reference", "XREFERENCE", NOTMUCH_FIELD_NO_FLAGS },
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{ "replyto", "XREPLYTO", NOTMUCH_FIELD_NO_FLAGS },
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{ "directory", "XDIRECTORY", NOTMUCH_FIELD_NO_FLAGS },
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{ "file-direntry", "XFDIRENTRY", NOTMUCH_FIELD_NO_FLAGS },
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{ "directory-direntry", "XDDIRENTRY", NOTMUCH_FIELD_NO_FLAGS },
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{ "body", "", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "thread", "G", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "tag", "K", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "is", "K", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "id", "Q", NOTMUCH_FIELD_EXTERNAL },
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{ "mid", "Q", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "path", "P", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "property", "XPROPERTY", NOTMUCH_FIELD_EXTERNAL },
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/*
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* Unconditionally add ':' to reduce potential ambiguity with
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* overlapping prefixes and/or terms that start with capital
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* letters. See Xapian document termprefixes.html for related
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* discussion.
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*/
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{ "folder", "XFOLDER:", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "date", NULL, NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "query", NULL, NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROCESSOR },
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{ "from", "XFROM", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC |
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NOTMUCH_FIELD_PROCESSOR },
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{ "to", "XTO", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "attachment", "XATTACHMENT", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "mimetype", "XMIMETYPE", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC },
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{ "subject", "XSUBJECT", NOTMUCH_FIELD_EXTERNAL |
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NOTMUCH_FIELD_PROBABILISTIC |
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NOTMUCH_FIELD_PROCESSOR },
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};
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static const char *
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_user_prefix (void *ctx, const char *name)
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{
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return talloc_asprintf (ctx, "XU%s:", name);
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}
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const char *
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_find_prefix (const char *name)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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if (strcmp (name, prefix_table[i].name) == 0)
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return prefix_table[i].prefix;
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}
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INTERNAL_ERROR ("No prefix exists for '%s'\n", name);
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return "";
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}
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/* Like find prefix, but include the possibility of user defined
|
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* prefixes specific to this database */
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const char *
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_notmuch_database_prefix (notmuch_database_t *notmuch, const char *name)
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{
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unsigned int i;
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/*XXX TODO: reduce code duplication */
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for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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if (strcmp (name, prefix_table[i].name) == 0)
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return prefix_table[i].prefix;
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}
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if (notmuch->user_prefix)
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return _notmuch_string_map_get (notmuch->user_prefix, name);
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return NULL;
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}
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static void
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_setup_query_field_default (const prefix_t *prefix, notmuch_database_t *notmuch)
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{
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if (prefix->prefix)
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notmuch->query_parser->add_prefix ("", prefix->prefix);
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if (prefix->flags & NOTMUCH_FIELD_PROBABILISTIC)
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notmuch->query_parser->add_prefix (prefix->name, prefix->prefix);
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else
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notmuch->query_parser->add_boolean_prefix (prefix->name, prefix->prefix);
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}
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static void
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_setup_query_field (const prefix_t *prefix, notmuch_database_t *notmuch)
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{
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if (prefix->flags & NOTMUCH_FIELD_PROCESSOR) {
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Xapian::FieldProcessor *fp;
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if (STRNCMP_LITERAL (prefix->name, "date") == 0)
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fp = (new DateFieldProcessor(NOTMUCH_VALUE_TIMESTAMP))->release ();
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else if (STRNCMP_LITERAL(prefix->name, "query") == 0)
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fp = (new QueryFieldProcessor (*notmuch->query_parser, notmuch))->release ();
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else if (STRNCMP_LITERAL (prefix->name, "thread") == 0)
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fp = (new ThreadFieldProcessor (*notmuch->query_parser, notmuch))->release ();
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else
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fp = (new RegexpFieldProcessor (prefix->name, prefix->flags,
|
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*notmuch->query_parser, notmuch))->release ();
|
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/* we treat all field-processor fields as boolean in order to get the raw input */
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if (prefix->prefix)
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notmuch->query_parser->add_prefix ("", prefix->prefix);
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notmuch->query_parser->add_boolean_prefix (prefix->name, fp);
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} else {
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_setup_query_field_default (prefix, notmuch);
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}
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}
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notmuch_status_t
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_notmuch_database_setup_standard_query_fields (notmuch_database_t *notmuch)
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{
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for (unsigned int i = 0; i < ARRAY_SIZE (prefix_table); i++) {
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const prefix_t *prefix = &prefix_table[i];
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if (prefix->flags & NOTMUCH_FIELD_EXTERNAL) {
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_setup_query_field (prefix, notmuch);
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}
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}
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return NOTMUCH_STATUS_SUCCESS;
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}
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notmuch_status_t
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_notmuch_database_setup_user_query_fields (notmuch_database_t *notmuch)
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{
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notmuch_config_list_t *list;
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notmuch_status_t status;
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notmuch->user_prefix = _notmuch_string_map_create (notmuch);
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if (notmuch->user_prefix == NULL)
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return NOTMUCH_STATUS_OUT_OF_MEMORY;
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|
||||
notmuch->user_header = _notmuch_string_map_create (notmuch);
|
||||
if (notmuch->user_header == NULL)
|
||||
return NOTMUCH_STATUS_OUT_OF_MEMORY;
|
||||
|
||||
status = notmuch_database_get_config_list (notmuch, CONFIG_HEADER_PREFIX, &list);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
for (; notmuch_config_list_valid (list); notmuch_config_list_move_to_next (list)) {
|
||||
|
||||
prefix_t query_field;
|
||||
|
||||
const char *key = notmuch_config_list_key (list)
|
||||
+ sizeof (CONFIG_HEADER_PREFIX) - 1;
|
||||
|
||||
_notmuch_string_map_append (notmuch->user_prefix,
|
||||
key,
|
||||
_user_prefix (notmuch, key));
|
||||
|
||||
_notmuch_string_map_append (notmuch->user_header,
|
||||
key,
|
||||
notmuch_config_list_value (list));
|
||||
|
||||
query_field.name = talloc_strdup (notmuch, key);
|
||||
query_field.prefix = _user_prefix (notmuch, key);
|
||||
query_field.flags = NOTMUCH_FIELD_PROBABILISTIC
|
||||
| NOTMUCH_FIELD_EXTERNAL;
|
||||
|
||||
_setup_query_field_default (&query_field, notmuch);
|
||||
}
|
||||
|
||||
notmuch_config_list_destroy (list);
|
||||
|
||||
return NOTMUCH_STATUS_SUCCESS;
|
||||
}
|
||||
Loading…
Reference in a new issue