Teaching an old dog new tricks
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sort.h File Reference

Assorted sorting methods. More...

#include <stdbool.h>
#include "core/lib.h"
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#define mutt_numeric_cmp(a, b)   ((a) < (b) ? -1 : ((a) > (b) ? 1 : 0))


typedef int(* sort_mail_t) (const struct Email *a, const struct Email *b, bool reverse)


int mutt_compare_emails (const struct Email *a, const struct Email *b, enum MailboxType type, short sort, short sort_aux)
 Compare two emails using up to two sort methods -.
void mutt_sort_headers (struct MailboxView *mv, bool init)
 Sort emails by their headers.
const char * mutt_get_name (const struct Address *a)
 Pick the best name to display from an address.

Detailed Description

Assorted sorting methods.

  • Michael R. Elkins
  • Pietro Cerutti

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see

Definition in file sort.h.

Macro Definition Documentation

◆ mutt_numeric_cmp

#define mutt_numeric_cmp (   a,
)    ((a) < (b) ? -1 : ((a) > (b) ? 1 : 0))

Definition at line 34 of file sort.h.

Typedef Documentation

◆ sort_mail_t

typedef int(* sort_mail_t) (const struct Email *a, const struct Email *b, bool reverse)

Definition at line 48 of file sort.h.

Function Documentation

◆ mutt_sort_headers()

void mutt_sort_headers ( struct MailboxView mv,
bool  init 

Sort emails by their headers.

mvMailbox View
initIf true, rebuild the thread

Definition at line 352 of file sort.c.

354 if (!mv)
355 return;
357 struct Mailbox *m = mv->mailbox;
358 if (!m || !m->emails[0])
359 return;
361 OptNeedResort = false;
363 if (m->msg_count == 0)
364 {
365 /* this function gets called by mutt_sync_mailbox(), which may have just
366 * deleted all the messages. the virtual message numbers are not updated
367 * in that routine, so we must make sure to zero the vcount member. */
368 m->vcount = 0;
370 mv->vsize = 0;
371 return; /* nothing to do! */
372 }
374 if (m->verbose)
375 mutt_message(_("Sorting mailbox..."));
377 const bool c_score = cs_subset_bool(NeoMutt->sub, "score");
378 if (OptNeedRescore && c_score)
379 {
380 for (int i = 0; i < m->msg_count; i++)
381 {
382 struct Email *e = m->emails[i];
383 if (!e)
384 break;
385 mutt_score_message(m, e, true);
386 }
387 }
388 OptNeedRescore = false;
390 if (OptResortInit)
391 {
392 OptResortInit = false;
393 init = true;
394 }
396 if (init)
399 const bool threaded = mutt_using_threads();
400 if (threaded)
401 {
402 mutt_sort_threads(mv->threads, init);
403 }
404 else
405 {
406 struct EmailCompare cmp = { 0 };
407 cmp.type = mx_type(m);
408 cmp.sort = cs_subset_sort(NeoMutt->sub, "sort");
409 cmp.sort_aux = cs_subset_sort(NeoMutt->sub, "sort_aux");
410 mutt_qsort_r((void *) m->emails, m->msg_count, sizeof(struct Email *),
411 compare_email_shim, &cmp);
412 }
414 /* adjust the virtual message numbers */
415 m->vcount = 0;
416 for (int i = 0; i < m->msg_count; i++)
417 {
418 struct Email *e_cur = m->emails[i];
419 if (!e_cur)
420 break;
422 if ((e_cur->vnum != -1) || (e_cur->collapsed && e_cur->visible))
423 {
424 e_cur->vnum = m->vcount;
425 m->v2r[m->vcount] = i;
426 m->vcount++;
427 }
428 e_cur->msgno = i;
429 }
431 /* re-collapse threads marked as collapsed */
432 if (threaded)
433 {
435 mv->vsize = mutt_set_vnum(m);
436 }
438 if (m->verbose)
441 return;
bool cs_subset_bool(const struct ConfigSubset *sub, const char *name)
Get a boolean config item by name.
Definition: helpers.c:48
short cs_subset_sort(const struct ConfigSubset *sub, const char *name)
Get a sort config item by name.
Definition: helpers.c:267
bool OptNeedRescore
(pseudo) set when the 'score' command is used
Definition: globals.c:73
bool OptResortInit
(pseudo) used to force the next resort to be from scratch
Definition: globals.c:81
bool OptNeedResort
(pseudo) used to force a re-sort
Definition: globals.c:74
#define mutt_message(...)
Definition: logging2.h:91
static int compare_email_shim(const void *a, const void *b, void *sdata)
Helper to sort emails - Implements sort_t -.
Definition: sort.c:64
#define _(a)
Definition: message.h:28
void mutt_clear_error(void)
Clear the message line (bottom line of screen)
Definition: mutt_logging.c:73
void mutt_clear_threads(struct ThreadsContext *tctx)
Clear the threading of message in a mailbox.
Definition: mutt_thread.c:717
void mutt_thread_collapse_collapsed(struct ThreadsContext *tctx)
Re-collapse threads marked as collapsed.
Definition: mutt_thread.c:1765
void mutt_sort_threads(struct ThreadsContext *tctx, bool init)
Sort email threads.
Definition: mutt_thread.c:1028
off_t mutt_set_vnum(struct Mailbox *m)
Set the virtual index number of all the messages in a mailbox.
Definition: mutt_thread.c:1401
#define mutt_using_threads()
Definition: mutt_thread.h:112
enum MailboxType mx_type(struct Mailbox *m)
Return the type of the Mailbox.
Definition: mx.c:1857
void mutt_qsort_r(void *base, size_t nmemb, size_t size, sort_t compar, void *sdata)
Sort an array, where the comparator has access to opaque data rather than requiring global variables.
Definition: qsort_r.c:66
void mutt_score_message(struct Mailbox *m, struct Email *e, bool upd_mbox)
Apply scoring to an email.
Definition: score.c:161
Context for compare_email_shim()
Definition: sort.c:55
short sort_aux
Secondary sort.
Definition: sort.c:58
short sort
Primary sort.
Definition: sort.c:57
enum MailboxType type
Current mailbox type.
Definition: sort.c:56
The envelope/body of an email.
Definition: email.h:37
bool visible
Is this message part of the view?
Definition: email.h:120
bool collapsed
Is this message part of a collapsed thread?
Definition: email.h:119
bool threaded
Used for threading.
Definition: email.h:107
int vnum
Virtual message number.
Definition: email.h:113
int msgno
Number displayed to the user.
Definition: email.h:110
off_t vsize
Size (in bytes) of the messages shown.
Definition: mview.h:40
struct ThreadsContext * threads
Threads context.
Definition: mview.h:43
struct Mailbox * mailbox
Current Mailbox.
Definition: mview.h:50
A mailbox.
Definition: mailbox.h:79
int vcount
The number of virtual messages.
Definition: mailbox.h:99
int * v2r
Mapping from virtual to real msgno.
Definition: mailbox.h:98
int msg_count
Total number of messages.
Definition: mailbox.h:88
struct Email ** emails
Array of Emails.
Definition: mailbox.h:96
bool verbose
Display status messages?
Definition: mailbox.h:116
Container for Accounts, Notifications.
Definition: neomutt.h:41
struct ConfigSubset * sub
Inherited config items.
Definition: neomutt.h:45
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◆ mutt_get_name()

const char * mutt_get_name ( const struct Address a)

Pick the best name to display from an address.

aAddress to use
Return values
ptrDisplay name

This function uses:

  1. Alias for email address
  2. Personal name
  3. Email address

Definition at line 134 of file sort.c.

136 struct Address *ali = NULL;
138 if (a)
139 {
140 const bool c_reverse_alias = cs_subset_bool(NeoMutt->sub, "reverse_alias");
141 if (c_reverse_alias && (ali = alias_reverse_lookup(a)) && ali->personal)
142 return buf_string(ali->personal);
143 if (a->personal)
144 return buf_string(a->personal);
145 if (a->mailbox)
146 return mutt_addr_for_display(a);
147 }
148 /* don't return NULL to avoid segfault when printing/comparing */
149 return "";
const char * mutt_addr_for_display(const struct Address *a)
Convert an Address for display purposes.
Definition: address.c:1009
struct Address * alias_reverse_lookup(const struct Address *addr)
Does the user have an alias for the given address.
Definition: reverse.c:105
static const char * buf_string(const struct Buffer *buf)
Convert a buffer to a const char * "string".
Definition: buffer.h:93
An email address.
Definition: address.h:36
struct Buffer * personal
Real name of address.
Definition: address.h:37
struct Buffer * mailbox
Mailbox and host address.
Definition: address.h:38
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