forked from alphapapa/org-ql
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathorg-ql.el
2454 lines (2233 loc) · 126 KB
/
org-ql.el
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
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
;;; org-ql.el --- Org Query Language, search command, and agenda-like view -*- lexical-binding: t; -*-
;; Author: Adam Porter <adam@alphapapa.net>
;; Url: https://github.com/alphapapa/org-ql
;; Version: 0.7-pre
;; Package-Requires: ((emacs "26.1") (dash "2.18.1") (f "0.17.2") (map "2.1") (org "9.0") (org-super-agenda "1.2") (ov "1.0.6") (peg "1.0") (s "1.12.0") (transient "0.1") (ts "0.2-pre"))
;; Keywords: hypermedia, outlines, Org, agenda
;;; Commentary:
;; `org-ql' is a lispy query language for Org files. It allows you to
;; find Org entries matching certain criteria and return a list of
;; them or perform actions on them. Commands are also provided which
;; display a buffer with matching results, similar to an Org Agenda
;; buffer.
;;; License:
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; 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 <https://www.gnu.org/licenses/>.
;;; Code:
;;;; Requirements
(require 'cl-lib)
(require 'org)
(require 'org-element)
(require 'org-habit)
(require 'seq)
(require 'subr-x)
(require 'dash)
(require 'map)
(require 'ts)
;;;; Constants
;; Note the use of the `rx' `blank' keyword, which matches "horizontal" whitespace.
(defconst org-ql-tsr-regexp-inactive
(concat org-ts-regexp-inactive "\\(--?-?"
org-ts-regexp-inactive "\\)?")
;; MAYBE: Propose this for org.el.
"Regular expression matching an inactive timestamp or timestamp range.")
(defconst org-ql-clock-regexp
(rx bol (0+ blank) "CLOCK:" (group (1+ not-newline)))
"Regular expression matching Org \"CLOCK:\" lines.
Like `org-clock-line-re', but matches the timestamp range in a
match group.")
(defconst org-ql-planning-regexp
(rx bol (0+ blank) (or "CLOSED" "DEADLINE" "SCHEDULED") ":" (1+ blank) (group (1+ not-newline)))
"Regular expression matching Org \"planning\" lines.
That is, \"CLOSED:\", \"DEADLINE:\", or \"SCHEDULED:\".")
(defconst org-ql-tag-line-re
"^\\*+ \\(?:.*[ \t]\\)?\\(:\\([[:alnum:]_@#%:]+\\):\\)[ \t]*$"
;; Copied from `org-tag-line-re' from org.el.
"Regexp matching tags in a headline.
Tags are stored in match group 1. Match group 2 stores the tags
without the enclosing colons.")
(defconst org-ql-link-regexp
(if (bound-and-true-p org-link-bracket-re)
org-link-bracket-re
org-bracket-link-regexp)
"Regexp used to match Org bracket links.
Necessary because of changes in Org 9.something.")
(defconst org-ql-link-description-group
(if (bound-and-true-p org-link-bracket-re)
2
3)
;; I wish Org would not introduce backward-incompatible changes like this in
;; minor releases. It requires awkward workarounds to be maintained for years.
"Regexp match group used to extract description from Org bracket links.
Necessary because of backward-incompatible changes in Org
9.something: when `org-link-bracket-re' was added,
`org-bracket-link-regexp' was marked as an obsolete alias for it,
but the match groups were changed, so they are not compatible.")
;;;; Variables
(defvar org-ql--today nil)
(defvar org-ql-use-preamble t
;; MAYBE: Naming things is hard. There must be a better term than "preamble."
"Use query preambles to speed up searches.
May be disabled for debugging, benchmarks, etc.")
(defvar org-ql-cache (make-hash-table :weakness 'key)
;; IIUC, setting weakness to `key' means that, when a buffer is closed,
;; its entries will be removed from this table at the next GC.
"Query cache, keyed by buffer.
Each value is a list of the buffer's modified tick and another
hash table, keyed by arguments passed to
`org-ql--select-cached'.")
(defvar org-ql-tags-cache (make-hash-table :weakness 'key)
"Per-buffer tags cache.
Keyed by buffer. Each value is a cons of the buffer's modified
tick, and another hash table keyed on buffer position, whose
values are a list of two lists, inherited tags and local tags, as
strings.")
(defvar org-ql-node-value-cache (make-hash-table :weakness 'key)
"Per-buffer node cache.
Keyed by buffer. Each value is a cons of the buffer's modified
tick, and another hash table keyed on buffer position, whose
values are alists in which the key is a function and the value is
the value returned by it at that node.")
(eval-and-compile
(defvar org-ql-predicates
;; FIXME: Is this remapping still necessary? It was mapping `org-back-to-heading'
;; to itself until now, so maybe I broke it and it doesn't matter anymore.
(list (cons 'org-back-to-heading (list :name 'org-back-to-heading :fn (symbol-function 'outline-back-to-heading))))
"Plist of predicates, their corresponding functions, and their docstrings.
This list should not contain any duplicates."))
;;;;; Timestamp regexps
;; We need more specificity than the built-in Org timestamp regexps
;; provide, and sometimes they change from version to version, so we
;; define our own. And by defining them with `rx', they are much
;; easier to understand than the string-based ones in org.el (of
;; course, `rx' probably wasn't available when most of those were
;; written).
;; MAYBE: Use newer `rx' custom expressions to define these.
;; MAYBE: Add match groups corresponding to the ones in the "official" Org regexps.
;; TODO: Use these new regexps in more places.
(defvar org-ql-regexp-part-ts-date
(rx (repeat 4 digit) "-" (repeat 2 digit) "-" (repeat 2 digit)
;; Day of week
(optional " " (1+ alpha)))
"Matches the inner, date part of an Org timestamp, both active and inactive.
Also matches optional day-of-week. Used to build other timestamp
regexps.")
(defvar org-ql-regexp-part-ts-repeaters
;; Repeaters (not sure if the colon is necessary, but it's in the org.el one)
(rx (repeat 1 2 (seq " " (repeat 1 2 (any "-+:.")) (1+ digit) (any "hdwmy")
(optional "/" (1+ digit) (any "hdwmy")))))
"Matches the repeater part of an Org timestamp.
Includes leading space character.")
(defvar org-ql-regexp-part-ts-time
(rx " " (repeat 1 2 digit) ":" (repeat 2 digit))
"Matches the inner, time part of an Org timestamp (i.e. HH:MM).
Includes leading space character. Used to build other timestamp
regexps.")
;; NOTE: The inactive timestamp regexps don't allow repeaters. I don't know if this is
;; officially correct, but it seems to make sense, and would be easy to change if necessary.
(defvar org-ql-regexp-ts-both
(rx-to-string
`(or (seq "<" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-time))
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">")
(seq "[" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-time)))))
"Matches both active and inactive Org timestamps, with or without time.")
(defvar org-ql-regexp-ts-both-with-time
(rx-to-string `(or (seq "<" (regexp ,org-ql-regexp-part-ts-date)
(regexp ,org-ql-regexp-part-ts-time)
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">")
(seq "[" (regexp ,org-ql-regexp-part-ts-date)
(regexp ,org-ql-regexp-part-ts-time) "]")))
"Matches both active and inactive Org timestamps, with time.")
(defvar org-ql-regexp-ts-both-without-time
(rx-to-string `(or (seq "<" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">")
(seq "[" (regexp ,org-ql-regexp-part-ts-date) "]")))
"Matches both active and inactive Org timestamps, without time.")
(defvar org-ql-regexp-ts-active
(rx-to-string `(seq "<" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-time))
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">"))
"Matches active Org timestamps, with or without time.")
(defvar org-ql-regexp-ts-active-with-time
(rx-to-string `(seq "<" (regexp ,org-ql-regexp-part-ts-date)
(regexp ,org-ql-regexp-part-ts-time)
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">"))
"Matches active Org timestamps, with time.")
(defvar org-ql-regexp-ts-active-without-time
(rx-to-string `(seq "<" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-repeaters)) ">"))
"Matches active Org timestamps, without time.")
(defvar org-ql-regexp-ts-inactive
(rx-to-string `(seq "[" (regexp ,org-ql-regexp-part-ts-date)
(optional (regexp ,org-ql-regexp-part-ts-time))"]"))
"Matches inactive Org timestamps, with or without time.")
(defvar org-ql-regexp-ts-inactive-with-time
(rx-to-string `(seq "[" (regexp ,org-ql-regexp-part-ts-date)
(regexp ,org-ql-regexp-part-ts-time)"]"))
"Matches inactive Org timestamps, with time.")
(defvar org-ql-regexp-ts-inactive-without-time
(rx-to-string `(seq "[" (regexp ,org-ql-regexp-part-ts-date) "]"))
"Matches inactive Org timestamps, without time.")
(defvar org-ql-regexp-planning
(rx-to-string `(seq bow (or (seq "CLOSED" ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-inactive)))
(seq (or "DEADLINE" "SCHEDULED") ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-active))))))
"Matches CLOSED, DEADLINE or SCHEDULED keyword with timestamp, with or without time.")
(defvar org-ql-regexp-planning-with-time
(rx-to-string `(seq bow (or (seq "CLOSED" ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-inactive-with-time)))
(seq (or "DEADLINE" "SCHEDULED") ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-active-with-time))))))
"Matches CLOSED, DEADLINE or SCHEDULED keyword with timestamp, with time.")
(defvar org-ql-regexp-planning-without-time
(rx-to-string `(seq bow (or (seq "CLOSED" ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-inactive-without-time)))
(seq (or "DEADLINE" "SCHEDULED") ":" (0+ " ")
(group-n 1 (regexp ,org-ql-regexp-ts-active-without-time))))))
"Matches CLOSED, DEADLINE or SCHEDULED keyword with timestamp, without time.")
(defvar org-ql-regexp-deadline
(rx-to-string `(seq bow "DEADLINE" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active))))
"Matches DEADLINE keyword with a time-and-hour stamp, with or without time.")
(defvar org-ql-regexp-deadline-with-time
(rx-to-string `(seq bow "DEADLINE" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active-with-time))))
"Matches DEADLINE keyword with a time-and-hour stamp, with time.")
(defvar org-ql-regexp-deadline-without-time
(rx-to-string `(seq bow "DEADLINE" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active-without-time))))
"Matches DEADLINE keyword with a time-and-hour stamp, without time.")
(defvar org-ql-regexp-scheduled
(rx-to-string `(seq bow "SCHEDULED" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active))))
"Matches SCHEDULED keyword with a time-and-hour stamp, with or without time.")
(defvar org-ql-regexp-scheduled-with-time
(rx-to-string `(seq bow "SCHEDULED" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active-with-time))))
"Matches SCHEDULED keyword with a time-and-hour stamp, with time.")
(defvar org-ql-regexp-scheduled-without-time
(rx-to-string `(seq bow "SCHEDULED" ":" (0+ " ")
(group (regexp ,org-ql-regexp-ts-active-without-time))))
"Matches SCHEDULED keyword with a time-and-hour stamp, without time.")
;;;; Customization
(defgroup org-ql nil
"Customization for `org-ql'."
:group 'org
:link '(custom-manual "(org-ql)Usage")
:link '(url-link "https://github.com/alphapapa/org-ql"))
(defcustom org-ql-ask-unsafe-queries t
"Ask before running a query that could run arbitrary code.
Org QL queries in sexp form can contain arbitrary expressions.
When opening an \"org-ql-search:\" link or updating a dynamic
block that contains a query in sexp form, and this option is
non-nil, the user will be prompted for confirmation before
opening the link.
This variable may be set file-locally to disable this warning in
files that the user assumes are safe (e.g. of known provenance).
Users who are entirely unconcerned about this issue may disable
the option globally (at their own risk, however minimal it
probably is).
See Info node `(org-ql)Queries'."
:type 'boolean
:risky t)
(defcustom org-ql-default-predicate 'rifle
"Predicate used for plain-string tokens without a specified predicate."
:type '(choice (const heading)
(const heading-regexp)
(const regexp)
(const rifle)
(const smart)
(const outline-path)
(const outline-path-segment)))
;;;; Functions
;;;;; Query execution
(define-hash-table-test 'org-ql-hash-test #'equal (lambda (args)
(sxhash-equal (prin1-to-string args))))
;;;###autoload
(cl-defun org-ql-select (buffers-or-files query &key action narrow sort)
"Return items matching QUERY in BUFFERS-OR-FILES.
BUFFERS-OR-FILES is a file or buffer, a list of files and/or
buffers, or a function which returns such a list.
QUERY is an `org-ql' query sexp (quoted, since this is a
function).
ACTION is a function which is called on each matching entry with
point at the beginning of its heading. It may be:
- `element' or nil: Equivalent to `org-element-headline-parser'.
- `element-with-markers': Equivalent to calling
`org-element-headline-parser', with markers added using
`org-ql--add-markers'. Suitable for formatting with
`org-ql-view--format-element', allowing insertion into an Org
Agenda-like buffer.
- A sexp, which will be byte-compiled into a lambda function.
- A function symbol.
If NARROW is non-nil, buffers are not widened (the default is to
widen and search the entire buffer).
SORT is either nil, in which case items are not sorted; or one or
a list of defined `org-ql' sorting methods (`date', `deadline',
`scheduled', `closed', `todo', `priority', `reverse', or `random'); or a
user-defined comparator function that accepts two items as
arguments and returns nil or non-nil. Sorting methods are
applied in the order given (i.e. later methods override earlier
ones), and `reverse' may be used more than once.
For example, `(date priority)' would present items with the
highest priority first, and within each priority the oldest items
would appear first. In contrast, `(date reverse priority)' would
also present items with the highest priority first, but within
each priority the newest items would appear first."
(declare (indent defun))
(-let* ((buffers (->> (cl-typecase buffers-or-files
(null (list (current-buffer)))
(function (funcall buffers-or-files))
(list buffers-or-files)
(otherwise (list buffers-or-files)))
(--map (cl-etypecase it
;; NOTE: This etypecase is essential to opening links safely,
;; as it rejects, e.g. lambdas in the buffers-files argument.
(buffer it)
(string (or (find-buffer-visiting it)
(when (file-readable-p it)
;; It feels unintuitive that `find-file-noselect' returns
;; a buffer if the filename doesn't exist.
(find-file-noselect it))
(display-warning 'org-ql-select (format "Can't open file: %s" it) :error)))))
;; Ignore special/hidden buffers.
(--remove (string-prefix-p " " (buffer-name it)))))
(query (org-ql--normalize-query query))
((&plist :query :preamble :preamble-case-fold) (org-ql--query-preamble query))
(predicate (org-ql--query-predicate query))
(action (pcase action
;; NOTE: These two lambdas are backquoted to prevent "unused lexical
;; variable" warnings from byte-compilation, because they don't use
;; all of the variables from their enclosing scope.
('element-with-markers (byte-compile
`(lambda (&rest _ignore)
(org-ql--add-markers
(org-element-headline-parser (line-end-position))))))
((or 'nil 'element) (byte-compile
`(lambda (&rest _ignore)
(org-element-headline-parser (line-end-position)))))
((pred functionp) action)
((and (pred listp) (guard (or (special-form-p (car action))
(macrop (car action))
(functionp (car action)))))
(byte-compile
`(lambda (&rest _ignore)
,action)))
(_ (user-error "Invalid action form: %s" action))))
(org-ql--today (ts-now))
(items (let (orig-fns)
(unwind-protect
(progn
(--each org-ql-predicates
;; Set predicate functions.
(-let (((&plist :name :fn) (cdr it)))
;; Save original function.
(push (list :name name :fn (symbol-function name)) orig-fns)
;; Temporarily set new function definition.
(fset name fn)))
;; Run query on buffers.
(->> buffers
(--map (with-current-buffer it
(unless (derived-mode-p 'org-mode)
(display-warning 'org-ql-select (format "Not an Org buffer: %s" (buffer-name)) :error))
(org-ql--select-cached :query query :preamble preamble :preamble-case-fold preamble-case-fold
:predicate predicate :action action :narrow narrow)))
(-flatten-n 1)))
(--each orig-fns
;; Restore original function mappings.
(-let (((&plist :name :fn) it))
(fset name fn)))))))
;; Sort items
(pcase sort
(`nil items)
((guard (cl-subsetp (-list sort) '(date deadline scheduled closed todo priority random reverse)))
;; Default sorting functions
(org-ql--sort-by items (-list sort)))
;; Sort by user-given comparator.
((pred functionp) (-sort sort items))
(_ (user-error "SORT must be either nil, one or a list of the defined sorting methods (see documentation), or a comparison function of two arguments")))))
;;;###autoload
(cl-defun org-ql-query (&key (select 'element-with-markers) from where narrow order-by)
"Like `org-ql-select', but arguments are named more like a SQL query.
SELECT corresponds to the `org-ql-select' argument ACTION. It is
the function called on matching headings, the results of which
are returned by this function. It may be:
- `element' or nil: Equivalent to `org-element-headline-parser'.
- `element-with-markers': Equivalent to
`org-element-headline-parser', with markers added using
`org-ql--add-markers'. Suitable for formatting with
`org-ql-view--format-element', allowing insertion into an Org
Agenda-like buffer.
- A sexp, which will be byte-compiled into a lambda function.
- A function symbol.
FROM corresponds to the `org-ql-select' argument BUFFERS-OR-FILES.
It may be one or a list of file paths and/or buffers.
WHERE corresponds to the `org-ql-select' argument QUERY. It
should be an `org-ql' query sexp.
ORDER-BY corresponds to the `org-ql-select' argument SORT, which
see.
NARROW corresponds to the `org-ql-select' argument NARROW."
(declare (indent 0))
(org-ql-select from where
:action select
:narrow narrow
:sort order-by))
(defun org-ql--select-cached (&rest args)
"Return results for ARGS and current buffer using cache."
;; MAYBE: Timeout cached queries. Probably not necessarily since they will be removed when a
;; buffer is closed, or when a query is run after modifying a buffer.
(-let* (((&plist :query :preamble :action :narrow :preamble-case-fold) args)
(query-cache-key
;; The key must include the preamble, because some queries are replaced by
;; the preamble, leaving a nil query, which would make the key ambiguous.
(list :query query :preamble preamble :action action :preamble-case-fold preamble-case-fold
(if narrow
;; Use bounds of narrowed portion of buffer.
(cons (point-min) (point-max))
nil))))
(if-let* ((buffer-cache (gethash (current-buffer) org-ql-cache))
(query-cache (cadr buffer-cache))
(modified-tick (car buffer-cache))
(buffer-unmodified-p (eq (buffer-chars-modified-tick) modified-tick))
(cached-result (gethash query-cache-key query-cache)))
(pcase cached-result
('org-ql-nil nil)
(_ cached-result))
(let ((new-result (apply #'org-ql--select args)))
(cond ((or (not query-cache)
(not buffer-unmodified-p))
(puthash (current-buffer)
(list (buffer-chars-modified-tick)
(let ((table (make-hash-table :test 'org-ql-hash-test)))
(puthash query-cache-key (or new-result 'org-ql-nil) table)
table))
org-ql-cache))
(t (puthash query-cache-key (or new-result 'org-ql-nil) query-cache)))
new-result))))
(cl-defun org-ql--select (&key preamble preamble-case-fold predicate action narrow
&allow-other-keys)
"Return results of mapping function ACTION across entries in current buffer matching function PREDICATE.
If NARROW is non-nil, buffer will not be widened."
;; Since the mappings are stored in the variable `org-ql-predicates', macros like `flet'
;; can't be used, so we do it manually (this is same as the equivalent `flet' expansion).
;; Mappings are stored in the variable because it allows predicates to be defined with a
;; macro, which allows documentation to be easily generated for them.
(save-excursion
(save-restriction
(unless narrow
(widen))
(goto-char (point-min))
(when (org-before-first-heading-p)
(outline-next-heading))
(if (not (org-at-heading-p))
(progn
;; No headings in buffer: return nil.
(unless (string-prefix-p " " (buffer-name))
;; Not a special, hidden buffer: show message, because if a user accidentally
;; searches a buffer without headings, he might be confused.
(message "org-ql: No headings in buffer: %s" (current-buffer)))
nil)
;; Find matching entries.
;; TODO: Bind `case-fold-search' around the preamble loop.
(cond (preamble (cl-loop while (let ((case-fold-search preamble-case-fold))
(re-search-forward preamble nil t))
do (outline-back-to-heading 'invisible-ok)
when (funcall predicate)
collect (funcall action)
do (outline-next-heading)))
(t (cl-loop when (funcall predicate)
collect (funcall action)
while (outline-next-heading))))))))
;;;;; Helpers
(defun org-ql--ensure-buffer (file-or-buffer)
"Ensure a buffer is named or visiting FILE-OR-BUFFER.
If no such buffer exists with the name, and it is the name of a
readable file, `find-file-noselect' it into a buffer."
;; See comment in `org-ql-find'.
;; FIXME: Use this in `helm-org-ql' the same way it's used in
;; `org-ql-find'.
(unless (or (get-buffer file-or-buffer)
(find-buffer-visiting file-or-buffer))
(if (file-readable-p file-or-buffer)
(with-current-buffer (find-file-noselect file-or-buffer)
(cl-assert (eq 'org-mode major-mode) nil (format "Not an Org buffer: %S" file-or-buffer)))
(display-warning 'org-ql (format "Not a readable file: %S" file-or-buffer) :error))))
(defun org-ql--tags-at (position)
;; FIXME: This function actually assumes that point is already at POSITION.
"Return tags for POSITION in current buffer.
Returns cons (INHERITED-TAGS . LOCAL-TAGS)."
;; I'd like to use `-if-let*', but it doesn't leave non-nil variables
;; bound in the else clause, so destructured variables that are non-nil,
;; like found caches, are not available in the else clause.
(if-let* ((buffer-cache (gethash (current-buffer) org-ql-tags-cache))
(modified-tick (car buffer-cache))
(tags-cache (cdr buffer-cache))
(buffer-unmodified-p (eq (buffer-chars-modified-tick) modified-tick))
(cached-result (gethash position tags-cache)))
;; Found in cache: return them.
;; FIXME: Isn't `cached-result' a list of (INHERITED . LOCAL)? It
;; will never be just `org-ql-nil', but the CAR and CDR may be, so
;; they need to each be checked and replaced with nil if necessary.
(pcase cached-result
('org-ql-nil nil)
(_ cached-result))
;; Not found in cache: get tags and cache them.
(let* ((local-tags (or (when (looking-at org-ql-tag-line-re)
(split-string (match-string-no-properties 2) ":" t))
'org-ql-nil))
(inherited-tags (or (when org-use-tag-inheritance
(save-excursion
(if (org-up-heading-safe)
;; Return parent heading's tags.
(-let* (((inherited local) (org-ql--tags-at (point)))
(tags (when (or inherited local)
(cond ((and (listp inherited)
(listp local))
(->> (append inherited local)
-non-nil -uniq))
((listp inherited) inherited)
((listp local) local)))))
(cl-typecase org-use-tag-inheritance
(list (setf tags (-intersection tags org-use-tag-inheritance)))
(string (setf tags (--select (string-match org-use-tag-inheritance it)
tags))))
(pcase org-tags-exclude-from-inheritance
('nil tags)
(_ (-difference tags org-tags-exclude-from-inheritance))))
;; Top-level heading: use file tags.
org-file-tags)))
'org-ql-nil))
(all-tags (list inherited-tags local-tags)))
;; Check caches again, because they may have been set now.
;; TODO: Is there a clever way we could avoid doing this, or is it inherently necessary?
(setf buffer-cache (gethash (current-buffer) org-ql-tags-cache)
modified-tick (car buffer-cache)
tags-cache (cdr buffer-cache)
buffer-unmodified-p (eq (buffer-chars-modified-tick) modified-tick))
(unless (and buffer-cache buffer-unmodified-p)
;; Buffer-local tags cache empty or invalid: make new one.
(setf tags-cache (make-hash-table))
(puthash (current-buffer)
(cons (buffer-chars-modified-tick) tags-cache)
org-ql-tags-cache))
(puthash position all-tags tags-cache))))
(defun org-ql--outline-path ()
"Return outline path for heading at point."
(save-excursion
(let ((heading (save-match-data
(if (looking-at org-complex-heading-regexp)
(or (match-string 4) "")
""))))
(if (org-up-heading-safe)
;; MAYBE: It seems wrong to call the cache function from
;; inside this function, like a violation of separation of
;; concern. Can this be rewritten to not work that way?
(append (org-ql--value-at (point) #'org-ql--outline-path)
(list heading))
(list heading)))))
;; TODO: Use --value-at for tags cache.
(defun org-ql--value-at (position fn)
;; TODO: Either rename to `value-at-point' and remove `position' arg, or move point.
"Return FN's value at POSITION in current buffer.
Values compared with `equal'."
;; I'd like to use `-if-let*', but it doesn't leave non-nil variables
;; bound in the else clause, so destructured variables that are non-nil,
;; like found caches, are not available in the else clause.
(pcase (if-let* ((buffer-cache (gethash (current-buffer) org-ql-node-value-cache))
(modified-tick (car buffer-cache))
(position-cache (cdr buffer-cache))
(buffer-unmodified-p (eq (buffer-chars-modified-tick) modified-tick))
(value-cache (gethash position position-cache))
(cached-value (alist-get fn value-cache nil nil #'equal)))
;; Found in cache: return it.
cached-value
;; Not found in cache: call FN, cache and return its value.
(let ((new-value (or (funcall fn) 'org-ql-nil)))
;; Check caches again, because it may have been set now, e.g. by
;; recursively going up an outline tree.
;; TODO: Is there a clever way we could avoid doing this, or is it inherently necessary?
(setf buffer-cache (gethash (current-buffer) org-ql-node-value-cache)
modified-tick (car buffer-cache)
position-cache (cdr buffer-cache)
value-cache (when position-cache
(gethash position position-cache))
buffer-unmodified-p (eq (buffer-chars-modified-tick) modified-tick))
(unless (and buffer-cache buffer-unmodified-p)
;; Buffer-local node cache empty or invalid: make new one.
(setf position-cache (make-hash-table)
value-cache (gethash position position-cache))
(puthash (current-buffer)
(cons (buffer-chars-modified-tick) position-cache)
org-ql-node-value-cache))
(setf (alist-get fn value-cache nil nil #'equal) new-value)
(puthash position value-cache position-cache)
new-value))
;; Return nil or the non-nil value.
('org-ql-nil nil)
(else else)))
(defun org-ql--add-markers (element)
"Return ELEMENT with Org marker text properties added.
ELEMENT should be an Org element like that returned by
`org-element-headline-parser'. This function should be called
from within ELEMENT's buffer."
;; NOTE: `org-agenda-new-marker' works, until it doesn't, because...I don't know. It sometimes
;; raises errors or returns markers that don't point into a buffer. `copy-marker' always works,
;; of course, but maybe it will leave "dangling" markers, which could affect performance over
;; time? I don't know, but for now, it seems that we have to use `copy-marker'.
(let* ((marker (copy-marker (org-element-property :begin element)))
(properties (--> (cadr element)
(plist-put it :org-marker marker)
(plist-put it :org-hd-marker marker))))
(setf (cadr element) properties)
element))
(defun org-ql--ask-unsafe-query (query)
"Signal an error if user rejects running QUERY.
If `org-ql-view-ask-unsafe-links' is nil, does nothing and
returns nil."
(when org-ql-ask-unsafe-queries
(let ((query-string (propertize (cl-etypecase query
(list (prin1-to-string query))
(string query))
'face 'font-lock-warning-face)))
(unless (yes-or-no-p (concat "Query is in sexp form and could contain arbitrary code: "
query-string " Execute it? "))
(user-error "Query aborted by user")))))
(defun org-ql--plist-get* (plist property)
"Return the value of PROPERTY in PLIST, or `not-found' if the property is missing."
(if-let ((pair (plist-member plist property)))
(cadr pair)
'not-found))
;;;;; Query processing
;; Processing, compiling, etc. for queries.
;; This error is used for when compiling a query signals an error,
;; making it easier for the UI to avoid spurious warnings, e.g. for
;; partially typed queries in the Helm commands.
(define-error 'org-ql-invalid-query "Invalid Org QL query" 'user-error)
(defun org-ql--coalesce-ands (query)
"Return QUERY having coalesced any AND'ed clauses' predicates.
Multiple calls to the same predicate within an `and' expression
are coalesced into a single call to the predicate.
Note that this is a relatively simple function which does not
comprehensively coalesce every call that could be. For example,
if QUERY contained four calls to the `src' predicate with two
unique language arguments, only the calls for one language would
be coalesced."
;; TODO: Use a per-predicate alist-getting function that accounts
;; for arguments which must be unique...maybe...someday...
;; NOTE: This implentation can sometimes reorder sub-expressions,
;; like:
;;
;; (and (src :regexps ("foo") :lang "elisp") (src :regexps ("bar")))
;;
;; becomes:
;;
;; (and (src :regexps ("bar")) (src :regexps ("foo") :lang "elisp"))
;;
;; because the first one could be coalescable, but the second one
;; can't be coalesced with it since they don't specify the same
;; language. That could be fixed, but it's probably not worth it.
(cl-labels ((rec (sexp)
(pcase sexp
(`(,(and boolean (or 'or 'not)) . ,sexps)
`(,boolean ,@(mapcar #'rec sexps)))
(`(and . ,sexps)
(anded sexps))
(_ sexp)))
(anded (sexps)
(let (anded-predicates new-sexp)
(dolist (sexp sexps)
(pcase sexp
(`(,(or 'or 'not) . ,_)
(push (rec sexp) new-sexp))
(`(,predicate . ,args)
(pcase-exhaustive (plist-get (alist-get predicate org-ql-predicates) :coalesce)
(`nil (push sexp new-sexp))
(`t (setf (alist-get predicate anded-predicates)
(append (alist-get predicate anded-predicates) args)))
((and fn (pred functionp))
(if-let (new-args (funcall fn (alist-get predicate anded-predicates) args))
(setf (alist-get predicate anded-predicates) new-args)
(push sexp new-sexp)))))))
(delq nil `(and ,@(nreverse new-sexp) ,@(nreverse anded-predicates))))))
(rec query)))
(defun org-ql--sanity-check-form (form)
"Signal error if any forms in FORM do not have preconditions met.
Or, when possible, fix the problem."
(cl-flet ((check (symbol)
(cl-case symbol
('done (unless org-done-keywords
;; NOTE: This check needs to be done from within the Org buffer being checked.
(error "Variable `org-done-keywords' is nil. Are you running this from an Org buffer?"))))))
(cl-loop for elem in form
if (consp elem)
do (progn
(check (car elem))
(org-ql--sanity-check-form (cdr elem)))
else do (check elem))))
(cl-defun org-ql--link-regexp (&key description-or-target description target)
"Return a regexp matching Org links according to arguments.
Each argument is treated as a regexp (so non-regexp strings
should be quoted before being passed to this function). If
DESCRIPTION-OR-TARGET, match it in either description or target.
If DESCRIPTION, match it in the description. If TARGET, match it
in the target. If both DESCRIPTION and TARGET, match both,
respectively."
(cl-labels
((no-desc
(match) (rx-to-string `(seq (or bol (1+ blank))
"[[" (0+ (not (any "]"))) (regexp ,match) (0+ (not (any "]")))
"]]")))
(match-both
(description target)
(rx-to-string `(seq (or bol (1+ blank))
"[[" (0+ (not (any "]"))) (regexp ,target) (0+ (not (any "]")))
"][" (0+ (not (any "]"))) (regexp ,description) (0+ (not (any "]")))
"]]")))
;; Note that these actually allow empty descriptions
;; or targets, depending on what they are matching.
(match-desc
(match) (rx-to-string `(seq (or bol (1+ blank))
"[[" (0+ (not (any "]")))
"][" (0+ (not (any "]"))) (regexp ,match) (0+ (not (any "]")))
"]]")))
(match-target
(match) (rx-to-string `(seq (or bol (1+ blank))
"[[" (0+ (not (any "]"))) (regexp ,match) (0+ (not (any "]")))
"][" (0+ (not (any "]")))
"]]"))))
(cond (description-or-target
(rx-to-string `(or (regexp ,(no-desc description-or-target))
(regexp ,(match-desc description-or-target))
(regexp ,(match-target description-or-target)))))
((and description target)
(match-both description target))
(description (match-desc description))
(target (rx-to-string `(or (regexp ,(no-desc target))
(regexp ,(match-target target))))))))
(defun org-ql--format-src-block-regexp (&optional lang)
"Return regexp equivalent to `org-babel-src-block-regexp' with LANG filled in."
;; I couldn't find a way to match block contents without the regexp
;; also matching past the end of the block and into later blocks. Even
;; using `minimal-match' in several different combinations didn't work.
;; So matching contents will have to be done with the predicate.
(rx-to-string `(seq bol (group (zero-or-more (any " ")))
"#+begin_src"
(one-or-more (any " "))
,(or lang `(1+ (not (any " \n \f "))))
(zero-or-more (any " "))
(group (or (seq (zero-or-more (not (any "\n\":")))
"\""
(zero-or-more (not (any "\n\"*")))
"\""
(zero-or-more (not (any "\n\":"))))
(zero-or-more (not (any "\n\":")))))
(group (zero-or-more (not (any "\n")))) "\n"
(63 (group (*\? (not (any " "))) "\n"))
(zero-or-more (any " "))
"#+end_src")
t))
(defun org-ql--byte-compile-warning (string _pos _fill level)
"Signal an `org-ql-invalid-query' error.
Arguments STRING, POS, FILL, and LEVEL are according to
`byte-compile-log-warning-function'."
;; Used as the `byte-compile-log-warning-function' in `org-ql--query-preamble'.
(signal 'org-ql-invalid-query (list string level)))
(defun org-ql--query-predicate (query)
"Return predicate function for QUERY."
;; Use custom log function to prevent warnings for e.g. partially typed queries.
(let ((byte-compile-log-warning-function #'org-ql--byte-compile-warning))
(byte-compile
`(lambda ()
;; NOTE: If possible, all of this argument processing should be done in each predicate's
;; normalizers. However, it's probably better to do the regexps here, because we don't
;; want that showing up in the normalized query form that the user sees.
;; NOTE: `clocked' and `closed' don't have WITH-TIME args,
;; because they should always have a time.
;; NOTE: The pcases check for both t/nil symbols and strings, because the
;; string queries always return keyword arguments' values as strings.
(cl-macrolet ((clocked (&key from to on)
`(org-ql--predicate-clocked :from ,from :to ,to))
(closed (&key from to on (with-time 'not-found))
`(org-ql--predicate-closed :from ,from :to ,to))
(deadline (&key from to on (with-time 'not-found))
`(org-ql--predicate-deadline
:from ,from :to ,to :with-time ',with-time
:regexp ,(pcase-exhaustive with-time
((or 't "t") org-ql-regexp-deadline-with-time)
((or 'nil "nil") org-ql-regexp-deadline-without-time)
('not-found org-ql-regexp-deadline))))
(planning (&key from to on (with-time 'not-found))
`(org-ql--predicate-planning
:from ,from :to ,to :with-time ',with-time
:regexp ,(pcase-exhaustive with-time
((or 't "t") org-ql-regexp-planning-with-time)
((or 'nil "nil") org-ql-regexp-planning-without-time)
('not-found org-ql-regexp-planning))))
(scheduled (&key from to on (with-time 'not-found))
`(org-ql--predicate-scheduled
:from ,from :to ,to :with-time ',with-time
:regexp ,(pcase-exhaustive with-time
((or 't "t") org-ql-regexp-scheduled-with-time)
((or 'nil "nil") org-ql-regexp-scheduled-without-time)
('not-found org-ql-regexp-scheduled))))
(ts (&key from to on (type 'both) (with-time 'not-found))
;; NOTE: The TYPE argument is elided from the arguments actually passed to the predicate, being converted to the REGEXP argument.
;; MAYBE: Move the :regexp handling out of this macrolet and into the normalizer.
`(org-ql--predicate-ts
:from ,from :to ,to :with-time ',with-time
:regexp ,(pcase type
((or 'nil 'both) (pcase-exhaustive with-time
((or 't "t") org-ql-regexp-ts-both-with-time)
((or 'nil "nil") org-ql-regexp-ts-both-without-time)
('not-found org-ql-regexp-ts-both)))
('active (pcase-exhaustive with-time
((or 't "t") org-ql-regexp-ts-active-with-time)
((or 'nil "nil") org-ql-regexp-ts-active-without-time)
('not-found org-ql-regexp-ts-active)))
('inactive (pcase-exhaustive with-time
((or 't "t") org-ql-regexp-ts-inactive-with-time)
((or 'nil "nil") org-ql-regexp-ts-inactive-without-time)
('not-found org-ql-regexp-ts-inactive)))))))
,query)))))
;;;;; String query parsing
;; This section implements parsing of "plain," non-Lisp queries using the `peg'
;; library. NOTE: This needs to appear after the predicates are defined.
(require 'peg)
(defun org-ql--def-query-string-to-sexp-fn (predicates)
"Define function `org-ql--query-string-to-sexp' according to PREDICATES.
Builds the PEG expression using PREDICATES (which should be the
value of `org-ql-predicates')."
(let* ((names (--map (symbol-name (plist-get (cdr it) :name))
predicates))
(aliases (->> predicates
(--map (plist-get (cdr it) :aliases))
-non-nil
-flatten
(-map #'symbol-name)))
(predicate-names (->> (append names aliases)
-uniq
;; Sort the keywords longest-first to work around what seems to be an
;; obscure bug in `peg': when one keyword is a substring of another,
;; and the shorter one is listed first, the shorter one fails to match.
(-sort (-on #'> #'length))))
(pexs `((query (+ term
(opt (+ (syntax-class whitespace) (any)))))
(term (or (and negation (list positive-term)
;; This is a bit confusing, but it seems to work. There's probably a better way.
`(pred -- (list 'not (car pred))))
positive-term))
(positive-term (or (and predicate-with-args `(pred args -- (cons (intern pred) args)))
(and predicate-without-args `(pred -- (list (intern pred))))
(and plain-string `(s -- (list org-ql-default-predicate s)))))
(plain-string (or quoted-arg unquoted-arg))
(predicate-with-args (substring predicate) ":" args)
(predicate-without-args (substring predicate) ":")
(predicate (or ,@predicate-names))
(args (list (+ (and (or keyword-arg quoted-arg unquoted-arg) (opt separator)))))
(keyword-arg (and keyword "=" `(kw -- (intern (concat ":" kw)))))
(keyword (substring (+ (not (or separator "=" "\"" (syntax-class whitespace))) (any))))
(quoted-arg "\"" (substring (+ (not (or separator "\"")) (any))) "\"")
(unquoted-arg (substring (+ (not (or separator "\"" (syntax-class whitespace))) (any))))
(negation "!")
(separator "," )))
(closure (lambda (input &optional boolean)
"Return query parsed from plain query string INPUT.
Multiple predicate-names are combined with BOOLEAN (default: `and')."
;; HACK: Silence unused lexical variable warnings.
(ignore predicates predicate-names names aliases)
(unless (s-blank-str? input)
(let* ((boolean (or boolean 'and))
(parsed-sexp
(with-temp-buffer
(insert input)
(goto-char (point-min))
;; Copied from `peg-parse'. There is no function in `peg' that
;; returns a matcher function--every entry point is a macro,
;; which means that, since we define our PEG rules at runtime when
;; predicate-names are defined, we either have to use `eval', or we
;; have to borrow some code. It ends up that we only have to
;; borrow this `with-peg-rules' call, which isn't too bad.
(eval `(with-peg-rules ,pexs
(peg-run (peg ,(caar pexs)) #'peg-signal-failure))))))
(pcase parsed-sexp
(`(,one-predicate) one-predicate)
(`(,_ . ,_) (cons boolean (reverse parsed-sexp)))
(_ nil)))))))
(fset 'org-ql--query-string-to-sexp closure)))
;;;;; Predicate definition
;; HACK: These functions *will* be defined at runtime, so we silence
;; compiler warnings about them:
(declare-function org-ql--normalize-query "ext:org-ql" (query) t)
(declare-function org-ql--query-preamble "ext:org-ql" (query) t)
(defvar org-ql-defpred-defer nil
"Defer expensive function redefinitions when defining predicates.
When non-nil, defining a predicate with `org-ql-defpred' does not
cause the functions `org-ql--normalize-query',
`org-ql--query-preamble', and `org-ql--query-string-to-sexp' to
be redefined. These functions must be redefined in order to
account for new predicates, but when defining many
predicates (like at load time), that may be deferred for
performance (after which those functions should be updated
manually; see the definition of `org-ql-defpred').")
;; Yes, these two functions are a little hairy: `pcase' is challenging
;; enough, but splicing forms into one is something else. But it's
;; worth it to do this ugly stuff here, in one place, so the
;; `org-ql-defpred' macro becomes easy to use.
(defun org-ql--define-normalize-query-fn (predicates)
"Define function `org-ql--normalize-query' for PREDICATES.