unofficial mirror of notmuch@notmuchmail.org
 help / color / mirror / code / Atom feed
blob 538a2dd1f0faa4b54f6bc5fd34b323d331179226 7818 bytes (raw)
name: lib/prefix.cc 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
 
#include "database-private.h"
#include "query-fp.h"
#include "thread-fp.h"
#include "regexp-fields.h"
#include "parse-time-vrp.h"
#include "sexp-fp.h"

typedef struct {
    const char *name;
    const char *prefix;
    notmuch_field_flag_t flags;
} prefix_t;

/* With these prefix values we follow the conventions published here:
 *
 * https://xapian.org/docs/omega/termprefixes.html
 *
 * as much as makes sense. Note that I took some liberty in matching
 * the reserved prefix values to notmuch concepts, (for example, 'G'
 * is documented as "newsGroup (or similar entity - e.g. a web forum
 * name)", for which I think the thread is the closest analogue in
 * notmuch. This in spite of the fact that we will eventually be
 * storing mailing-list messages where 'G' for "mailing list name"
 * might be even a closer analogue. I'm treating the single-character
 * prefixes preferentially for core notmuch concepts (which will be
 * nearly universal to all mail messages).
 */

static const
prefix_t prefix_table[] = {
    /* name			term prefix	flags */
    { "type",                   "T",            NOTMUCH_FIELD_NO_FLAGS },
    { "reference",              "XREFERENCE",   NOTMUCH_FIELD_NO_FLAGS },
    { "replyto",                "XREPLYTO",     NOTMUCH_FIELD_NO_FLAGS },
    { "directory",              "XDIRECTORY",   NOTMUCH_FIELD_NO_FLAGS },
    { "file-direntry",          "XFDIRENTRY",   NOTMUCH_FIELD_NO_FLAGS },
    { "directory-direntry",     "XDDIRENTRY",   NOTMUCH_FIELD_NO_FLAGS },
    { "body",                   "",             NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC },
    { "thread",                 "G",            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
    { "tag",                    "K",            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
    { "is",                     "K",            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
    { "id",                     "Q",            NOTMUCH_FIELD_EXTERNAL },
    { "mid",                    "Q",            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
    { "path",                   "P",            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR | NOTMUCH_FIELD_STRIP_TRAILING_SLASH },
    { "property",               "XPROPERTY",    NOTMUCH_FIELD_EXTERNAL },
    /*
     * Unconditionally add ':' to reduce potential ambiguity with
     * overlapping prefixes and/or terms that start with capital
     * letters. See Xapian document termprefixes.html for related
     * discussion.
     */
    { "folder",                 "XFOLDER:",     NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR | NOTMUCH_FIELD_STRIP_TRAILING_SLASH },
    { "date",                   NULL,           NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
    { "query",                  NULL,           NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
#if HAVE_SFSEXP
    { "sexp",                  NULL,            NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROCESSOR },
#endif
    { "from",                   "XFROM",        NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC |
      NOTMUCH_FIELD_PROCESSOR },
    { "to",                     "XTO",          NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC },
    { "attachment",             "XATTACHMENT",  NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC },
    { "mimetype",               "XMIMETYPE",    NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC },
    { "subject",                "XSUBJECT",     NOTMUCH_FIELD_EXTERNAL |
      NOTMUCH_FIELD_PROBABILISTIC |
      NOTMUCH_FIELD_PROCESSOR },
};

static const char *
_user_prefix (void *ctx, const char *name)
{
    return talloc_asprintf (ctx, "XU%s:", name);
}

const char *
_find_prefix (const char *name)
{
    unsigned int i;

    for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
	if (strcmp (name, prefix_table[i].name) == 0)
	    return prefix_table[i].prefix;
    }

    INTERNAL_ERROR ("No prefix exists for '%s'\n", name);

    return "";
}

/* Like find prefix, but include the possibility of user defined
 * prefixes specific to this database */

const char *
_notmuch_database_prefix (notmuch_database_t *notmuch, const char *name)
{
    unsigned int i;

    /*XXX TODO: reduce code duplication */
    for (i = 0; i < ARRAY_SIZE (prefix_table); i++) {
	if (strcmp (name, prefix_table[i].name) == 0)
	    return prefix_table[i].prefix;
    }

    if (notmuch->user_prefix)
	return _notmuch_string_map_get (notmuch->user_prefix, name);

    return NULL;
}

static void
_setup_query_field_default (const prefix_t *prefix, notmuch_database_t *notmuch)
{
    if (prefix->prefix)
	notmuch->query_parser->add_prefix ("", prefix->prefix);
    if (prefix->flags & NOTMUCH_FIELD_PROBABILISTIC)
	notmuch->query_parser->add_prefix (prefix->name, prefix->prefix);
    else
	notmuch->query_parser->add_boolean_prefix (prefix->name, prefix->prefix);
}

static void
_setup_query_field (const prefix_t *prefix, notmuch_database_t *notmuch)
{
    if (prefix->flags & NOTMUCH_FIELD_PROCESSOR) {
	Xapian::FieldProcessor *fp;

	if (STRNCMP_LITERAL (prefix->name, "date") == 0)
	    fp = (new DateFieldProcessor (NOTMUCH_VALUE_TIMESTAMP))->release ();
	else if (STRNCMP_LITERAL (prefix->name, "query") == 0)
	    fp = (new QueryFieldProcessor (*notmuch->query_parser, notmuch))->release ();
	else if (STRNCMP_LITERAL (prefix->name, "thread") == 0)
	    fp = (new ThreadFieldProcessor (*notmuch->query_parser, notmuch))->release ();
#if HAVE_SFSEXP
	else if (STRNCMP_LITERAL (prefix->name, "sexp") == 0)
	    fp = (new SexpFieldProcessor (notmuch))->release ();
#endif
	else
	    fp = (new RegexpFieldProcessor (prefix->name, prefix->flags,
					    *notmuch->query_parser, notmuch))->release ();

	/* we treat all field-processor fields as boolean in order to get the raw input */
	if (prefix->prefix)
	    notmuch->query_parser->add_prefix ("", prefix->prefix);
	notmuch->query_parser->add_boolean_prefix (prefix->name, fp);
    } else {
	_setup_query_field_default (prefix, notmuch);
    }
}

notmuch_status_t
_notmuch_database_setup_standard_query_fields (notmuch_database_t *notmuch)
{
    for (unsigned int i = 0; i < ARRAY_SIZE (prefix_table); i++) {
	const prefix_t *prefix = &prefix_table[i];
	if (prefix->flags & NOTMUCH_FIELD_EXTERNAL) {
	    _setup_query_field (prefix, notmuch);
	}
    }
    return NOTMUCH_STATUS_SUCCESS;
}

notmuch_status_t
_notmuch_database_setup_user_query_fields (notmuch_database_t *notmuch)
{
    notmuch_string_map_iterator_t *list;

    notmuch->user_prefix = _notmuch_string_map_create (notmuch);
    if (notmuch->user_prefix == NULL)
	return NOTMUCH_STATUS_OUT_OF_MEMORY;

    notmuch->user_header = _notmuch_string_map_create (notmuch);
    if (notmuch->user_header == NULL)
	return NOTMUCH_STATUS_OUT_OF_MEMORY;

    list = _notmuch_string_map_iterator_create (notmuch->config, CONFIG_HEADER_PREFIX, FALSE);
    if (! list)
	INTERNAL_ERROR ("unable to read headers from configuration");

    for (; _notmuch_string_map_iterator_valid (list);
	 _notmuch_string_map_iterator_move_to_next (list)) {

	prefix_t query_field;

	const char *key = _notmuch_string_map_iterator_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_string_map_iterator_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_string_map_iterator_destroy (list);

    return NOTMUCH_STATUS_SUCCESS;
}

debug log:

solving 538a2dd1 ...
found 538a2dd1 in https://yhetil.org/notmuch/20220415170318.931068-1-david@tethera.net/
found 06e2333a in https://yhetil.org/notmuch.git/
preparing index
index prepared:
100644 06e2333a096894ab64ef0a0d8f3b35ad5b5cc7a5	lib/prefix.cc

applying [1/1] https://yhetil.org/notmuch/20220415170318.931068-1-david@tethera.net/
diff --git a/lib/prefix.cc b/lib/prefix.cc
index 06e2333a..538a2dd1 100644

Checking patch lib/prefix.cc...
Applied patch lib/prefix.cc cleanly.

index at:
100644 538a2dd1f0faa4b54f6bc5fd34b323d331179226	lib/prefix.cc

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://yhetil.org/notmuch.git/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).