summaryrefslogtreecommitdiffstats
path: root/lib/parse-datetime.c
blob: 0060cb2ece5e0e908ee5053366d3bbb30c5eabab (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
/* A Bison parser, made by GNU Bison 3.7.4.  */

/* Bison implementation for Yacc-like parsers in C

   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2020 Free Software Foundation,
   Inc.

   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 <http://www.gnu.org/licenses/>.  */

/* As a special exception, you may create a larger work that contains
   part or all of the Bison parser skeleton and distribute that work
   under terms of your choice, so long as that work isn't itself a
   parser generator using the skeleton or a modified version thereof
   as a parser skeleton.  Alternatively, if you modify or redistribute
   the parser skeleton itself, you may (at your option) remove this
   special exception, which will cause the skeleton and the resulting
   Bison output files to be licensed under the GNU General Public
   License without this special exception.

   This special exception was added by the Free Software Foundation in
   version 2.2 of Bison.  */

/* C LALR(1) parser skeleton written by Richard Stallman, by
   simplifying the original so-called "semantic" parser.  */

/* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
   especially those whose name start with YY_ or yy_.  They are
   private implementation details that can be changed or removed.  */

/* All symbols defined below should begin with yy or YY, to avoid
   infringing on user name space.  This should be done even for local
   variables, as they might otherwise be expanded by user macros.
   There are some unavoidable exceptions within include files to
   define necessary library symbols; they are noted "INFRINGES ON
   USER NAME SPACE" below.  */

/* Identify Bison output, and Bison version.  */
#define YYBISON 30704

/* Bison version string.  */
#define YYBISON_VERSION "3.7.4"

/* Skeleton name.  */
#define YYSKELETON_NAME "yacc.c"

/* Pure parsers.  */
#define YYPURE 1

/* Push parsers.  */
#define YYPUSH 0

/* Pull parsers.  */
#define YYPULL 1




/* First part of user prologue.  */
#line 1 "parse-datetime.y"

/* Parse a string into an internal timestamp.

   Copyright (C) 1999-2000, 2002-2022 Free Software Foundation, Inc.

   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/>.  */

/* Originally written by Steven M. Bellovin <smb@research.att.com> while
   at the University of North Carolina at Chapel Hill.  Later tweaked by
   a couple of people on Usenet.  Completely overhauled by Rich $alz
   <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.

   Modified by Assaf Gordon <assafgordon@gmail.com> in 2016 to add
   debug output.

   Modified by Paul Eggert <eggert@twinsun.com> in 1999 to do the
   right thing about local DST.  Also modified by Paul Eggert
   <eggert@cs.ucla.edu> in 2004 to support nanosecond-resolution
   timestamps, in 2004 to support TZ strings in dates, and in 2017 and 2020 to
   check for integer overflow and to support longer-than-'long'
   'time_t' and 'tv_nsec'.  */

#include <config.h>

#include "parse-datetime.h"

#include "idx.h"
#include "intprops.h"
#include "timespec.h"
#include "verify.h"
#include "strftime.h"

/* There's no need to extend the stack, so there's no need to involve
   alloca.  */
#define YYSTACK_USE_ALLOCA 0

/* Tell Bison how much stack space is needed.  20 should be plenty for
   this grammar, which is not right recursive.  Beware setting it too
   high, since that might cause problems on machines whose
   implementations have lame stack-overflow checking.  */
#define YYMAXDEPTH 20
#define YYINITDEPTH YYMAXDEPTH

/* Since the code of parse-datetime.y is not included in the Emacs executable
   itself, there is no need to #define static in this file.  Even if
   the code were included in the Emacs executable, it probably
   wouldn't do any harm to #undef it here; this will only cause
   problems if we try to write to a static variable, which I don't
   think this code needs to do.  */
#ifdef emacs
# undef static
#endif

#include <inttypes.h>
#include <c-ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "gettext.h"

#define _(str) gettext (str)

/* Bison's skeleton tests _STDLIB_H, while some stdlib.h headers
   use _STDLIB_H_ as witness.  Map the latter to the one bison uses.  */
/* FIXME: this is temporary.  Remove when we have a mechanism to ensure
   that the version we're using is fixed, too.  */
#ifdef _STDLIB_H_
# undef _STDLIB_H
# define _STDLIB_H 1
#endif

/* Shift A right by B bits portably, by dividing A by 2**B and
   truncating towards minus infinity.  A and B should be free of side
   effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
   INT_BITS is the number of useful bits in an int.  GNU code can
   assume that INT_BITS is at least 32.

   ISO C99 says that A >> B is implementation-defined if A < 0.  Some
   implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
   right in the usual way when A < 0, so SHR falls back on division if
   ordinary A >> B doesn't seem to be the usual signed shift.  */
#define SHR(a, b)       \
  (-1 >> 1 == -1        \
   ? (a) >> (b)         \
   : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))

#define HOUR(x) (60 * 60 * (x))

#define STREQ(a, b) (strcmp (a, b) == 0)

/* Verify that time_t is an integer as POSIX requires, and that every
   time_t value fits in intmax_t.  Please file a bug report if these
   assumptions are false on your platform.  */
verify (TYPE_IS_INTEGER (time_t));
verify (!TYPE_SIGNED (time_t) || INTMAX_MIN <= TYPE_MINIMUM (time_t));
verify (TYPE_MAXIMUM (time_t) <= INTMAX_MAX);

/* True if N is out of range for time_t.  */
static bool
time_overflow (intmax_t n)
{
  return ! ((TYPE_SIGNED (time_t) ? TYPE_MINIMUM (time_t) <= n : 0 <= n)
            && n <= TYPE_MAXIMUM (time_t));
}

/* Convert a possibly-signed character to an unsigned character.  This is
   a bit safer than casting to unsigned char, since it catches some type
   errors that the cast doesn't.  */
static unsigned char to_uchar (char ch) { return ch; }

static void _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 2))
dbg_printf (char const *msg, ...)
{
  va_list args;
  /* TODO: use gnulib's 'program_name' instead?  */
  fputs ("date: ", stderr);

  va_start (args, msg);
  vfprintf (stderr, msg, args);
  va_end (args);
}


/* An integer value, and the number of digits in its textual
   representation.  */
typedef struct
{
  bool negative;
  intmax_t value;
  idx_t digits;
} textint;

/* An entry in the lexical lookup table.  */
typedef struct
{
  char const *name;
  int type;
  int value;
} table;

/* Meridian: am, pm, or 24-hour style.  */
enum { MERam, MERpm, MER24 };

/* A reasonable upper bound for the buffer used in debug output.  */
enum { DBGBUFSIZE = 100 };

enum { BILLION = 1000000000, LOG10_BILLION = 9 };

/* Relative times.  */
typedef struct
{
  /* Relative year, month, day, hour, minutes, seconds, and nanoseconds.  */
  intmax_t year;
  intmax_t month;
  intmax_t day;
  intmax_t hour;
  intmax_t minutes;
  intmax_t seconds;
  int ns;
} relative_time;

#if HAVE_COMPOUND_LITERALS
# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 })
#else
static relative_time const RELATIVE_TIME_0;
#endif

/* Information passed to and from the parser.  */
typedef struct
{
  /* The input string remaining to be parsed.  */
  const char *input;

  /* N, if this is the Nth Tuesday.  */
  intmax_t day_ordinal;

  /* Day of week; Sunday is 0.  */
  int day_number;

  /* tm_isdst flag for the local zone.  */
  int local_isdst;

  /* Time zone, in seconds east of UT.  */
  int time_zone;

  /* Style used for time.  */
  int meridian;

  /* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds.  */
  textint year;
  intmax_t month;
  intmax_t day;
  intmax_t hour;
  intmax_t minutes;
  struct timespec seconds; /* includes nanoseconds */

  /* Relative year, month, day, hour, minutes, seconds, and nanoseconds.  */
  relative_time rel;

  /* Presence or counts of nonterminals of various flavors parsed so far.  */
  bool timespec_seen;
  bool rels_seen;
  idx_t dates_seen;
  idx_t days_seen;
  idx_t local_zones_seen;
  idx_t dsts_seen;
  idx_t times_seen;
  idx_t zones_seen;
  bool year_seen;

#ifdef GNULIB_PARSE_DATETIME2
  /* Print debugging output to stderr.  */
  bool parse_datetime_debug;
#endif

  /* Which of the 'seen' parts have been printed when debugging.  */
  bool debug_dates_seen;
  bool debug_days_seen;
  bool debug_local_zones_seen;
  bool debug_times_seen;
  bool debug_zones_seen;
  bool debug_year_seen;

  /* The user specified explicit ordinal day value.  */
  bool debug_ordinal_day_seen;

  /* Table of local time zone abbreviations, terminated by a null entry.  */
  table local_time_zone_table[3];
} parser_control;

static bool
debugging (parser_control const *pc)
{
#ifdef GNULIB_PARSE_DATETIME2
  return pc->parse_datetime_debug;
#else
  return false;
#endif
}

union YYSTYPE;
static int yylex (union YYSTYPE *, parser_control *);
static int yyerror (parser_control const *, char const *);
static bool time_zone_hhmm (parser_control *, textint, intmax_t);

/* Extract into *PC any date and time info from a string of digits
   of the form e.g., YYYYMMDD, YYMMDD, HHMM, HH (and sometimes YYY,
   YYYY, ...).  */
static void
digits_to_date_time (parser_control *pc, textint text_int)
{
  if (pc->dates_seen && ! pc->year.digits
      && ! pc->rels_seen && (pc->times_seen || 2 < text_int.digits))
    {
      pc->year_seen = true;
      pc->year = text_int;
    }
  else
    {
      if (4 < text_int.digits)
        {
          pc->dates_seen++;
          pc->day = text_int.value % 100;
          pc->month = (text_int.value / 100) % 100;
          pc->year.value = text_int.value / 10000;
          pc->year.digits = text_int.digits - 4;
        }
      else
        {
          pc->times_seen++;
          if (text_int.digits <= 2)
            {
              pc->hour = text_int.value;
              pc->minutes = 0;
            }
          else
            {
              pc->hour = text_int.value / 100;
              pc->minutes = text_int.value % 100;
            }
          pc->seconds.tv_sec = 0;
          pc->seconds.tv_nsec = 0;
          pc->meridian = MER24;
        }
    }
}

/* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1).  Return true
   if successful, false if an overflow occurred.  */
static bool
apply_relative_time (parser_control *pc, relative_time rel, int factor)
{
  if (factor < 0
      ? (INT_SUBTRACT_WRAPV (pc->rel.ns, rel.ns, &pc->rel.ns)
         | INT_SUBTRACT_WRAPV (pc->rel.seconds, rel.seconds, &pc->rel.seconds)
         | INT_SUBTRACT_WRAPV (pc->rel.minutes, rel.minutes, &pc->rel.minutes)
         | INT_SUBTRACT_WRAPV (pc->rel.hour, rel.hour, &pc->rel.hour)
         | INT_SUBTRACT_WRAPV (pc->rel.day, rel.day, &pc->rel.day)
         | INT_SUBTRACT_WRAPV (pc->rel.month, rel.month, &pc->rel.month)
         | INT_SUBTRACT_WRAPV (pc->rel.year, rel.year, &pc->rel.year))
      : (INT_ADD_WRAPV (pc->rel.ns, rel.ns, &pc->rel.ns)
         | INT_ADD_WRAPV (pc->rel.seconds, rel.seconds, &pc->rel.seconds)
         | INT_ADD_WRAPV (pc->rel.minutes, rel.minutes, &pc->rel.minutes)
         | INT_ADD_WRAPV (pc->rel.hour, rel.hour, &pc->rel.hour)
         | INT_ADD_WRAPV (pc->rel.day, rel.day, &pc->rel.day)
         | INT_ADD_WRAPV (pc->rel.month, rel.month, &pc->rel.month)
         | INT_ADD_WRAPV (pc->rel.year, rel.year, &pc->rel.year)))
    return false;
  pc->rels_seen = true;
  return true;
}

/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments.  */
static void
set_hhmmss (parser_control *pc, intmax_t hour, intmax_t minutes,
            time_t sec, int nsec)
{
  pc->hour = hour;
  pc->minutes = minutes;
  pc->seconds.tv_sec = sec;
  pc->seconds.tv_nsec = nsec;
}

/* Return a textual representation of the day ordinal/number values
   in the parser_control struct (e.g., "last wed", "this tues", "thu").  */
static const char *
str_days (parser_control *pc, char *buffer, int n)
{
  /* TODO: use relative_time_table for reverse lookup.  */
  static char const ordinal_values[][11] = {
     "last",
     "this",
     "next/first",
     "(SECOND)", /* SECOND is commented out in relative_time_table.  */
     "third",
     "fourth",
     "fifth",
     "sixth",
     "seventh",
     "eight",
     "ninth",
     "tenth",
     "eleventh",
     "twelfth"
  };

  static char const days_values[][4] = {
     "Sun",
     "Mon",
     "Tue",
     "Wed",
     "Thu",
     "Fri",
     "Sat"
  };

  int len;

  /* Don't add an ordinal prefix if the user didn't specify it
     (e.g., "this wed" vs "wed").  */
  if (pc->debug_ordinal_day_seen)
    {
      /* Use word description if possible (e.g., -1 = last, 3 = third).  */
      len = (-1 <= pc->day_ordinal && pc->day_ordinal <= 12
             ? snprintf (buffer, n, "%s", ordinal_values[pc->day_ordinal + 1])
             : snprintf (buffer, n, "%"PRIdMAX, pc->day_ordinal));
    }
  else
    {
      buffer[0] = '\0';
      len = 0;
    }

  /* Add the day name */
  if (0 <= pc->day_number && pc->day_number <= 6 && 0 <= len && len < n)
    snprintf (buffer + len, n - len, &" %s"[len == 0],
              days_values[pc->day_number]);
  else
    {
      /* invalid day_number value - should never happen */
    }
  return buffer;
}

/* Convert a time zone to its string representation.  */

enum { TIME_ZONE_BUFSIZE = INT_STRLEN_BOUND (intmax_t) + sizeof ":MM:SS" } ;

static char const *
time_zone_str (int time_zone, char time_zone_buf[TIME_ZONE_BUFSIZE])
{
  char *p = time_zone_buf;
  char sign = time_zone < 0 ? '-' : '+';
  int hour = abs (time_zone / (60 * 60));
  p += sprintf (time_zone_buf, "%c%02d", sign, hour);
  int offset_from_hour = abs (time_zone % (60 * 60));
  if (offset_from_hour != 0)
    {
      int mm = offset_from_hour / 60;
      int ss = offset_from_hour % 60;
      *p++ = ':';
      *p++ = '0' + mm / 10;
      *p++ = '0' + mm % 10;
      if (ss)
        {
          *p++ = ':';
          *p++ = '0' + ss / 10;
          *p++ = '0' + ss % 10;
        }
      *p = '\0';
    }
  return time_zone_buf;
}

/* debugging: print the current time in the parser_control structure.
   The parser will increment "*_seen" members for those which were parsed.
   This function will print only newly seen parts.  */
static void
debug_print_current_time (char const *item, parser_control *pc)
{
  bool space = false;

  if (!debugging (pc))
    return;

  /* no newline, more items printed below */
  dbg_printf (_("parsed %s part: "), item);

  if (pc->dates_seen && !pc->debug_dates_seen)
    {
      /*TODO: use pc->year.negative?  */
      fprintf (stderr, "(Y-M-D) %04"PRIdMAX"-%02"PRIdMAX"-%02"PRIdMAX,
              pc->year.value, pc->month, pc->day);
      pc->debug_dates_seen = true;
      space = true;
    }

  if (pc->year_seen != pc->debug_year_seen)
    {
      if (space)
        fputc (' ', stderr);
      fprintf (stderr, _("year: %04"PRIdMAX), pc->year.value);

      pc->debug_year_seen = pc->year_seen;
      space = true;
    }

  if (pc->times_seen && !pc->debug_times_seen)
    {
      intmax_t sec = pc->seconds.tv_sec;
      fprintf (stderr, &" %02"PRIdMAX":%02"PRIdMAX":%02"PRIdMAX[!space],
               pc->hour, pc->minutes, sec);
      if (pc->seconds.tv_nsec != 0)
        {
          int nsec = pc->seconds.tv_nsec;
          fprintf (stderr, ".%09d", nsec);
        }
      if (pc->meridian == MERpm)
        fputs ("pm", stderr);

      pc->debug_times_seen = true;
      space = true;
    }

  if (pc->days_seen && !pc->debug_days_seen)
    {
      if (space)
        fputc (' ', stderr);
      char tmp[DBGBUFSIZE];
      fprintf (stderr, _("%s (day ordinal=%"PRIdMAX" number=%d)"),
               str_days (pc, tmp, sizeof tmp),
               pc->day_ordinal, pc->day_number);
      pc->debug_days_seen = true;
      space = true;
    }

  /* local zone strings only change the DST settings,
     not the timezone value.  If seen, inform about the DST.  */
  if (pc->local_zones_seen && !pc->debug_local_zones_seen)
    {
      fprintf (stderr, &" isdst=%d%s"[!space],
               pc->local_isdst, pc->dsts_seen ? " DST" : "");
      pc->debug_local_zones_seen = true;
      space = true;
    }

  if (pc->zones_seen && !pc->debug_zones_seen)
    {
      char time_zone_buf[TIME_ZONE_BUFSIZE];
      fprintf (stderr, &" UTC%s"[!space],
               time_zone_str (pc->time_zone, time_zone_buf));
      pc->debug_zones_seen = true;
      space = true;
    }

  if (pc->timespec_seen)
    {
      intmax_t sec = pc->seconds.tv_sec;
      if (space)
        fputc (' ', stderr);
      fprintf (stderr, _("number of seconds: %"PRIdMAX), sec);
    }

  fputc ('\n', stderr);
}

/* Debugging: print the current relative values.  */

static bool
print_rel_part (bool space, intmax_t val, char const *name)
{
  if (val == 0)
    return space;
  fprintf (stderr, &" %+"PRIdMAX" %s"[!space], val, name);
  return true;
}

static void
debug_print_relative_time (char const *item, parser_control const *pc)
{
  bool space = false;

  if (!debugging (pc))
    return;

  /* no newline, more items printed below */
  dbg_printf (_("parsed %s part: "), item);

  if (pc->rel.year == 0 && pc->rel.month == 0 && pc->rel.day == 0
      && pc->rel.hour == 0 && pc->rel.minutes == 0 && pc->rel.seconds == 0
      && pc->rel.ns == 0)
    {
      /* Special case: relative time of this/today/now */
      fputs (_("today/this/now\n"), stderr);
      return;
    }

  space = print_rel_part (space, pc->rel.year, "year(s)");
  space = print_rel_part (space, pc->rel.month, "month(s)");
  space = print_rel_part (space, pc->rel.day, "day(s)");
  space = print_rel_part (space, pc->rel.hour, "hour(s)");
  space = print_rel_part (space, pc->rel.minutes, "minutes");
  space = print_rel_part (space, pc->rel.seconds, "seconds");
  print_rel_part (space, pc->rel.ns, "nanoseconds");

  fputc ('\n', stderr);
}




#line 636 "parse-datetime.c"

# ifndef YY_CAST
#  ifdef __cplusplus
#   define YY_CAST(Type, Val) static_cast<Type> (Val)
#   define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast<Type> (Val)
#  else
#   define YY_CAST(Type, Val) ((Type) (Val))
#   define YY_REINTERPRET_CAST(Type, Val) ((Type) (Val))
#  endif
# endif
# ifndef YY_NULLPTR
#  if defined __cplusplus
#   if 201103L <= __cplusplus
#    define YY_NULLPTR nullptr
#   else
#    define YY_NULLPTR 0
#   endif
#  else
#   define YY_NULLPTR ((void*)0)
#  endif
# endif

#include "parse-datetime-gen.h"
/* Symbol kind.  */
enum yysymbol_kind_t
{
  YYSYMBOL_YYEMPTY = -2,
  YYSYMBOL_YYEOF = 0,                      /* "end of file"  */
  YYSYMBOL_YYerror = 1,                    /* error  */
  YYSYMBOL_YYUNDEF = 2,                    /* "invalid token"  */
  YYSYMBOL_tAGO = 3,                       /* tAGO  */
  YYSYMBOL_tDST = 4,                       /* tDST  */
  YYSYMBOL_tYEAR_UNIT = 5,                 /* tYEAR_UNIT  */
  YYSYMBOL_tMONTH_UNIT = 6,                /* tMONTH_UNIT  */
  YYSYMBOL_tHOUR_UNIT = 7,                 /* tHOUR_UNIT  */
  YYSYMBOL_tMINUTE_UNIT = 8,               /* tMINUTE_UNIT  */
  YYSYMBOL_tSEC_UNIT = 9,                  /* tSEC_UNIT  */
  YYSYMBOL_tDAY_UNIT = 10,                 /* tDAY_UNIT  */
  YYSYMBOL_tDAY_SHIFT = 11,                /* tDAY_SHIFT  */
  YYSYMBOL_tDAY = 12,                      /* tDAY  */
  YYSYMBOL_tDAYZONE = 13,                  /* tDAYZONE  */
  YYSYMBOL_tLOCAL_ZONE = 14,               /* tLOCAL_ZONE  */
  YYSYMBOL_tMERIDIAN = 15,                 /* tMERIDIAN  */
  YYSYMBOL_tMONTH = 16,                    /* tMONTH  */
  YYSYMBOL_tORDINAL = 17,                  /* tORDINAL  */
  YYSYMBOL_tZONE = 18,                     /* tZONE  */
  YYSYMBOL_tSNUMBER = 19,                  /* tSNUMBER  */
  YYSYMBOL_tUNUMBER = 20,                  /* tUNUMBER  */
  YYSYMBOL_tSDECIMAL_NUMBER = 21,          /* tSDECIMAL_NUMBER  */
  YYSYMBOL_tUDECIMAL_NUMBER = 22,          /* tUDECIMAL_NUMBER  */
  YYSYMBOL_23_ = 23,                       /* '@'  */
  YYSYMBOL_24_T_ = 24,                     /* 'T'  */
  YYSYMBOL_25_ = 25,                       /* ':'  */
  YYSYMBOL_26_ = 26,                       /* ','  */
  YYSYMBOL_27_ = 27,                       /* '/'  */
  YYSYMBOL_YYACCEPT = 28,                  /* $accept  */
  YYSYMBOL_spec = 29,                      /* spec  */
  YYSYMBOL_timespec = 30,                  /* timespec  */
  YYSYMBOL_items = 31,                     /* items  */
  YYSYMBOL_item = 32,                      /* item  */
  YYSYMBOL_datetime = 33,                  /* datetime  */
  YYSYMBOL_iso_8601_datetime = 34,         /* iso_8601_datetime  */
  YYSYMBOL_time = 35,                      /* time  */
  YYSYMBOL_iso_8601_time = 36,             /* iso_8601_time  */
  YYSYMBOL_o_zone_offset = 37,             /* o_zone_offset  */
  YYSYMBOL_zone_offset = 38,               /* zone_offset  */
  YYSYMBOL_local_zone = 39,                /* local_zone  */
  YYSYMBOL_zone = 40,                      /* zone  */
  YYSYMBOL_day = 41,                       /* day  */
  YYSYMBOL_date = 42,                      /* date  */
  YYSYMBOL_iso_8601_date = 43,             /* iso_8601_date  */
  YYSYMBOL_rel = 44,                       /* rel  */
  YYSYMBOL_relunit = 45,                   /* relunit  */
  YYSYMBOL_relunit_snumber = 46,           /* relunit_snumber  */
  YYSYMBOL_dayshift = 47,                  /* dayshift  */
  YYSYMBOL_seconds = 48,                   /* seconds  */
  YYSYMBOL_signed_seconds = 49,            /* signed_seconds  */
  YYSYMBOL_unsigned_seconds = 50,          /* unsigned_seconds  */
  YYSYMBOL_number = 51,                    /* number  */
  YYSYMBOL_hybrid = 52,                    /* hybrid  */
  YYSYMBOL_o_colon_minutes = 53            /* o_colon_minutes  */
};
typedef enum yysymbol_kind_t yysymbol_kind_t;




#ifdef short
# undef short
#endif

/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure
   <limits.h> and (if available) <stdint.h> are included
   so that the code can choose integer types of a good width.  */

#ifndef __PTRDIFF_MAX__
# include <limits.h> /* INFRINGES ON USER NAME SPACE */
# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
#  include <stdint.h> /* INFRINGES ON USER NAME SPACE */
#  define YY_STDINT_H
# endif
#endif

/* Narrow types that promote to a signed type and that can represent a
   signed or unsigned integer of at least N bits.  In tables they can
   save space and decrease cache pressure.  Promoting to a signed type
   helps avoid bugs in integer arithmetic.  */

#ifdef __INT_LEAST8_MAX__
typedef __INT_LEAST8_TYPE__ yytype_int8;
#elif defined YY_STDINT_H
typedef int_least8_t yytype_int8;
#else
typedef signed char yytype_int8;
#endif

#ifdef __INT_LEAST16_MAX__
typedef __INT_LEAST16_TYPE__ yytype_int16;
#elif defined YY_STDINT_H
typedef int_least16_t yytype_int16;
#else
typedef short yytype_int16;
#endif

#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__
typedef __UINT_LEAST8_TYPE__ yytype_uint8;
#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \
       && UINT_LEAST8_MAX <= INT_MAX)
typedef uint_least8_t yytype_uint8;
#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX
typedef unsigned char yytype_uint8;
#else
typedef short yytype_uint8;
#endif

#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__
typedef __UINT_LEAST16_TYPE__ yytype_uint16;
#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \
       && UINT_LEAST16_MAX <= INT_MAX)
typedef uint_least16_t yytype_uint16;
#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX
typedef unsigned short yytype_uint16;
#else
typedef int yytype_uint16;
#endif

#ifndef YYPTRDIFF_T
# if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__
#  define YYPTRDIFF_T __PTRDIFF_TYPE__
#  define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__
# elif defined PTRDIFF_MAX
#  ifndef ptrdiff_t
#   include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  endif
#  define YYPTRDIFF_T ptrdiff_t
#  define YYPTRDIFF_MAXIMUM PTRDIFF_MAX
# else
#  define YYPTRDIFF_T long
#  define YYPTRDIFF_MAXIMUM LONG_MAX
# endif
#endif

#ifndef YYSIZE_T
# ifdef __SIZE_TYPE__
#  define YYSIZE_T __SIZE_TYPE__
# elif defined size_t
#  define YYSIZE_T size_t
# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  define YYSIZE_T size_t
# else
#  define YYSIZE_T unsigned
# endif
#endif

#define YYSIZE_MAXIMUM                                  \
  YY_CAST (YYPTRDIFF_T,                                 \
           (YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1)  \
            ? YYPTRDIFF_MAXIMUM                         \
            : YY_CAST (YYSIZE_T, -1)))

#define YYSIZEOF(X) YY_CAST (YYPTRDIFF_T, sizeof (X))


/* Stored state numbers (used for stacks). */
typedef yytype_int8 yy_state_t;

/* State numbers in computations.  */
typedef int yy_state_fast_t;

#ifndef YY_
# if defined YYENABLE_NLS && YYENABLE_NLS
#  if ENABLE_NLS
#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
#  endif
# endif
# ifndef YY_
#  define YY_(Msgid) Msgid
# endif
#endif


#ifndef YY_ATTRIBUTE_PURE
# if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__)
#  define YY_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
#  define YY_ATTRIBUTE_PURE
# endif
#endif

#ifndef YY_ATTRIBUTE_UNUSED
# if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
#  define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
# else
#  define YY_ATTRIBUTE_UNUSED
# endif
#endif

/* Suppress unused-variable warnings by "using" E.  */
#if ! defined lint || defined __GNUC__
# define YYUSE(E) ((void) (E))
#else
# define YYUSE(E) /* empty */
#endif

#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                            \
    _Pragma ("GCC diagnostic push")                                     \
    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")              \
    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
# define YY_IGNORE_MAYBE_UNINITIALIZED_END      \
    _Pragma ("GCC diagnostic pop")
#else
# define YY_INITIAL_VALUE(Value) Value
#endif
#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_END
#endif
#ifndef YY_INITIAL_VALUE
# define YY_INITIAL_VALUE(Value) /* Nothing. */
#endif

#if defined __cplusplus && defined __GNUC__ && ! defined __ICC && 6 <= __GNUC__
# define YY_IGNORE_USELESS_CAST_BEGIN                          \
    _Pragma ("GCC diagnostic push")                            \
    _Pragma ("GCC diagnostic ignored \"-Wuseless-cast\"")
# define YY_IGNORE_USELESS_CAST_END            \
    _Pragma ("GCC diagnostic pop")
#endif
#ifndef YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_END
#endif


#define YY_ASSERT(E) ((void) (0 && (E)))

#if !defined yyoverflow

/* The parser invokes alloca or malloc; define the necessary symbols.  */

# ifdef YYSTACK_USE_ALLOCA
#  if YYSTACK_USE_ALLOCA
#   ifdef __GNUC__
#    define YYSTACK_ALLOC __builtin_alloca
#   elif defined __BUILTIN_VA_ARG_INCR
#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
#   elif defined _AIX
#    define YYSTACK_ALLOC __alloca
#   elif defined _MSC_VER
#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
#    define alloca _alloca
#   else
#    define YYSTACK_ALLOC alloca
#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
#     ifndef EXIT_SUCCESS
#      define EXIT_SUCCESS 0
#     endif
#    endif
#   endif
#  endif
# endif

# ifdef YYSTACK_ALLOC
   /* Pacify GCC's 'empty if-body' warning.  */
#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
#  ifndef YYSTACK_ALLOC_MAXIMUM
    /* The OS might guarantee only one guard page at the bottom of the stack,
       and a page size can be as small as 4096 bytes.  So we cannot safely
       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
       to allow for a few compiler-allocated temporary stack slots.  */
#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
#  endif
# else
#  define YYSTACK_ALLOC YYMALLOC
#  define YYSTACK_FREE YYFREE
#  ifndef YYSTACK_ALLOC_MAXIMUM
#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
#  endif
#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
       && ! ((defined YYMALLOC || defined malloc) \
             && (defined YYFREE || defined free)))
#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
#   ifndef EXIT_SUCCESS
#    define EXIT_SUCCESS 0
#   endif
#  endif
#  ifndef YYMALLOC
#   define YYMALLOC malloc
#   if ! defined malloc && ! defined EXIT_SUCCESS
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
#   endif
#  endif
#  ifndef YYFREE
#   define YYFREE free
#   if ! defined free && ! defined EXIT_SUCCESS
void free (void *); /* INFRINGES ON USER NAME SPACE */
#   endif
#  endif
# endif
#endif /* !defined yyoverflow */

#if (! defined yyoverflow \
     && (! defined __cplusplus \
         || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))

/* A type that is properly aligned for any stack member.  */
union yyalloc
{
  yy_state_t yyss_alloc;
  YYSTYPE yyvs_alloc;
};

/* The size of the maximum gap between one aligned stack and the next.  */
# define YYSTACK_GAP_MAXIMUM (YYSIZEOF (union yyalloc) - 1)

/* The size of an array large to enough to hold all stacks, each with
   N elements.  */
# define YYSTACK_BYTES(N) \
     ((N) * (YYSIZEOF (yy_state_t) + YYSIZEOF (YYSTYPE)) \
      + YYSTACK_GAP_MAXIMUM)

# define YYCOPY_NEEDED 1

/* Relocate STACK from its old location to the new one.  The
   local variables YYSIZE and YYSTACKSIZE give the old and new number of
   elements in the stack, and YYPTR gives the new location of the
   stack.  Advance YYPTR to a properly aligned location for the next
   stack.  */
# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
    do                                                                  \
      {                                                                 \
        YYPTRDIFF_T yynewbytes;                                         \
        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
        Stack = &yyptr->Stack_alloc;                                    \
        yynewbytes = yystacksize * YYSIZEOF (*Stack) + YYSTACK_GAP_MAXIMUM; \
        yyptr += yynewbytes / YYSIZEOF (*yyptr);                        \
      }                                                                 \
    while (0)

#endif

#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
/* Copy COUNT objects from SRC to DST.  The source and destination do
   not overlap.  */
# ifndef YYCOPY
#  if defined __GNUC__ && 1 < __GNUC__
#   define YYCOPY(Dst, Src, Count) \
      __builtin_memcpy (Dst, Src, YY_CAST (YYSIZE_T, (Count)) * sizeof (*(Src)))
#  else
#   define YYCOPY(Dst, Src, Count)              \
      do                                        \
        {                                       \
          YYPTRDIFF_T yyi;                      \
          for (yyi = 0; yyi < (Count); yyi++)   \
            (Dst)[yyi] = (Src)[yyi];            \
        }                                       \
      while (0)
#  endif
# endif
#endif /* !YYCOPY_NEEDED */

/* YYFINAL -- State number of the termination state.  */
#define YYFINAL  12
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   112

/* YYNTOKENS -- Number of terminals.  */
#define YYNTOKENS  28
/* YYNNTS -- Number of nonterminals.  */
#define YYNNTS  26
/* YYNRULES -- Number of rules.  */
#define YYNRULES  91
/* YYNSTATES -- Number of states.  */
#define YYNSTATES  114

/* YYMAXUTOK -- Last valid token kind.  */
#define YYMAXUTOK   277


/* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM
   as returned by yylex, with out-of-bounds checking.  */
#define YYTRANSLATE(YYX)                                \
  (0 <= (YYX) && (YYX) <= YYMAXUTOK                     \
   ? YY_CAST (yysymbol_kind_t, yytranslate[YYX])        \
   : YYSYMBOL_YYUNDEF)

/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
   as returned by yylex.  */
static const yytype_int8 yytranslate[] =
{
       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,    26,     2,     2,    27,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,    25,     2,
       2,     2,     2,     2,    23,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,    24,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
      15,    16,    17,    18,    19,    20,    21,    22
};

#if YYDEBUG
  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
static const yytype_int16 yyrline[] =
{
       0,   603,   603,   604,   608,   616,   618,   622,   627,   632,
     637,   642,   647,   652,   656,   660,   667,   671,   675,   680,
     685,   690,   694,   699,   704,   711,   713,   717,   742,   744,
     754,   756,   758,   763,   768,   771,   773,   778,   783,   788,
     794,   803,   808,   841,   849,   857,   862,   868,   873,   879,
     883,   893,   895,   897,   902,   904,   906,   908,   910,   912,
     914,   917,   920,   922,   924,   926,   928,   930,   932,   934,
     936,   938,   940,   942,   944,   948,   950,   952,   955,   957,
     959,   964,   968,   968,   971,   972,   978,   979,   985,   990,
    1001,  1002
};
#endif

/** Accessing symbol of state STATE.  */
#define YY_ACCESSING_SYMBOL(State) YY_CAST (yysymbol_kind_t, yystos[State])

#if YYDEBUG || 0
/* The user-facing name of the symbol whose (internal) number is
   YYSYMBOL.  No bounds checking.  */
static const char *yysymbol_name (yysymbol_kind_t yysymbol) YY_ATTRIBUTE_UNUSED;

/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
static const char *const yytname[] =
{
  "\"end of file\"", "error", "\"invalid token\"", "tAGO", "tDST",
  "tYEAR_UNIT", "tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT",
  "tDAY_UNIT", "tDAY_SHIFT", "tDAY", "tDAYZONE", "tLOCAL_ZONE",
  "tMERIDIAN", "tMONTH", "tORDINAL", "tZONE", "tSNUMBER", "tUNUMBER",
  "tSDECIMAL_NUMBER", "tUDECIMAL_NUMBER", "'@'", "'T'", "':'", "','",
  "'/'", "$accept", "spec", "timespec", "items", "item", "datetime",
  "iso_8601_datetime", "time", "iso_8601_time", "o_zone_offset",
  "zone_offset", "local_zone", "zone", "day", "date", "iso_8601_date",
  "rel", "relunit", "relunit_snumber", "dayshift", "seconds",
  "signed_seconds", "unsigned_seconds", "number", "hybrid",
  "o_colon_minutes", YY_NULLPTR
};

static const char *
yysymbol_name (yysymbol_kind_t yysymbol)
{
  return yytname[yysymbol];
}
#endif

#ifdef YYPRINT
/* YYTOKNUM[NUM] -- (External) token number corresponding to the
   (internal) symbol number NUM (which must be that of a token).  */
static const yytype_int16 yytoknum[] =
{
       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
     275,   276,   277,    64,    84,    58,    44,    47
};
#endif

#define YYPACT_NINF (-93)

#define yypact_value_is_default(Yyn) \
  ((Yyn) == YYPACT_NINF)

#define YYTABLE_NINF (-1)

#define yytable_value_is_error(Yyn) \
  0

  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
     STATE-NUM.  */
static const yytype_int8 yypact[] =
{
      38,    27,    77,   -93,    46,   -93,   -93,   -93,   -93,   -93,
     -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,
      62,   -93,    82,    -3,    66,     3,    74,    -4,    83,    84,
      75,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,
      71,   -93,    93,   -93,   -93,   -93,   -93,   -93,   -93,    78,
      72,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,    25,
     -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,
     -93,   -93,   -93,   -93,   -93,    21,    19,    79,    80,   -93,
     -93,   -93,   -93,   -93,    81,   -93,   -93,    85,    86,   -93,
     -93,   -93,   -93,   -93,    -6,    76,    17,   -93,   -93,   -93,
     -93,    87,    69,   -93,   -93,    88,    89,    -1,   -93,    18,
     -93,   -93,    69,    91
};

  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
     Performed when YYTABLE does not specify something else to do.  Zero
     means the default is an error.  */
static const yytype_int8 yydefact[] =
{
       5,     0,     0,     2,     3,    85,    87,    84,    86,     4,
      82,    83,     1,    56,    59,    65,    68,    73,    62,    81,
      37,    35,    28,     0,     0,    30,     0,    88,     0,     0,
      31,     6,     7,    16,     8,    21,     9,    10,    12,    11,
      49,    13,    52,    74,    53,    14,    15,    38,    29,     0,
      45,    54,    57,    63,    66,    69,    60,    39,    36,    90,
      32,    75,    76,    78,    79,    80,    77,    55,    58,    64,
      67,    70,    61,    40,    18,    47,    90,     0,     0,    22,
      89,    71,    72,    33,     0,    51,    44,     0,     0,    34,
      43,    48,    50,    27,    25,    41,     0,    17,    46,    91,
      19,    90,     0,    23,    26,     0,     0,    25,    42,    25,
      20,    24,     0,    25
};

  /* YYPGOTO[NTERM-NUM].  */
static const yytype_int8 yypgoto[] =
{
     -93,   -93,   -93,   -93,   -93,   -93,   -93,   -93,    20,   -68,
     -27,   -93,   -93,   -93,   -93,   -93,   -93,   -93,    60,   -93,
     -93,   -93,   -92,   -93,   -93,    43
};

  /* YYDEFGOTO[NTERM-NUM].  */
static const yytype_int8 yydefgoto[] =
{
      -1,     2,     3,     4,    31,    32,    33,    34,    35,   103,
     104,    36,    37,    38,    39,    40,    41,    42,    43,    44,
       9,    10,    11,    45,    46,    93
};

  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
     positive, shift that token.  If negative, reduce the rule whose
     number is the opposite.  If YYTABLE_NINF, syntax error.  */
static const yytype_int8 yytable[] =
{
      79,    67,    68,    69,    70,    71,    72,    58,    73,   100,
     107,    74,    75,   101,   110,    76,    49,    50,   101,   102,
     113,    77,    59,    78,    61,    62,    63,    64,    65,    66,
      61,    62,    63,    64,    65,    66,   101,   101,    92,   111,
      90,    91,   106,   112,    88,   111,     5,     6,     7,     8,
      88,    13,    14,    15,    16,    17,    18,    19,    20,    21,
      22,     1,    23,    24,    25,    26,    27,    28,    29,    79,
      30,    51,    52,    53,    54,    55,    56,    12,    57,    61,
      62,    63,    64,    65,    66,    60,    48,    80,    47,     6,
      83,     8,    81,    82,    26,    84,    85,    86,    87,    94,
      95,    96,    89,   105,    97,    98,    99,     0,   108,   109,
     101,     0,    88
};

static const yytype_int8 yycheck[] =
{
      27,     5,     6,     7,     8,     9,    10,     4,    12,    15,
     102,    15,    16,    19,    15,    19,    19,    20,    19,    25,
     112,    25,    19,    27,     5,     6,     7,     8,     9,    10,
       5,     6,     7,     8,     9,    10,    19,    19,    19,   107,
      19,    20,    25,    25,    25,   113,    19,    20,    21,    22,
      25,     5,     6,     7,     8,     9,    10,    11,    12,    13,
      14,    23,    16,    17,    18,    19,    20,    21,    22,    96,
      24,     5,     6,     7,     8,     9,    10,     0,    12,     5,
       6,     7,     8,     9,    10,    25,     4,    27,    26,    20,
      30,    22,     9,     9,    19,    24,     3,    19,    26,    20,
      20,    20,    59,    27,    84,    20,    20,    -1,    20,    20,
      19,    -1,    25
};

  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
     symbol of state STATE-NUM.  */
static const yytype_int8 yystos[] =
{
       0,    23,    29,    30,    31,    19,    20,    21,    22,    48,
      49,    50,     0,     5,     6,     7,     8,     9,    10,    11,
      12,    13,    14,    16,    17,    18,    19,    20,    21,    22,
      24,    32,    33,    34,    35,    36,    39,    40,    41,    42,
      43,    44,    45,    46,    47,    51,    52,    26,     4,    19,
      20,     5,     6,     7,     8,     9,    10,    12,     4,    19,
      46,     5,     6,     7,     8,     9,    10,     5,     6,     7,
       8,     9,    10,    12,    15,    16,    19,    25,    27,    38,
      46,     9,     9,    46,    24,     3,    19,    26,    25,    53,
      19,    20,    19,    53,    20,    20,    20,    36,    20,    20,
      15,    19,    25,    37,    38,    27,    25,    50,    20,    20,
      15,    37,    25,    50
};

  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const yytype_int8 yyr1[] =
{
       0,    28,    29,    29,    30,    31,    31,    32,    32,    32,
      32,    32,    32,    32,    32,    32,    33,    34,    35,    35,
      35,    35,    36,    36,    36,    37,    37,    38,    39,    39,
      40,    40,    40,    40,    40,    40,    40,    41,    41,    41,
      41,    42,    42,    42,    42,    42,    42,    42,    42,    42,
      43,    44,    44,    44,    45,    45,    45,    45,    45,    45,
      45,    45,    45,    45,    45,    45,    45,    45,    45,    45,
      45,    45,    45,    45,    45,    46,    46,    46,    46,    46,
      46,    47,    48,    48,    49,    49,    50,    50,    51,    52,
      53,    53
};

  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
static const yytype_int8 yyr2[] =
{
       0,     2,     1,     1,     2,     0,     2,     1,     1,     1,
       1,     1,     1,     1,     1,     1,     1,     3,     2,     4,
       6,     1,     2,     4,     6,     0,     1,     2,     1,     2,
       1,     1,     2,     2,     3,     1,     2,     1,     2,     2,
       2,     3,     5,     3,     3,     2,     4,     2,     3,     1,
       3,     2,     1,     1,     2,     2,     1,     2,     2,     1,
       2,     2,     1,     2,     2,     1,     2,     2,     1,     2,
       2,     2,     2,     1,     1,     2,     2,     2,     2,     2,
       2,     1,     1,     1,     1,     1,     1,     1,     1,     2,
       0,     2
};


enum { YYENOMEM = -2 };

#define yyerrok         (yyerrstatus = 0)
#define yyclearin       (yychar = YYEMPTY)

#define YYACCEPT        goto yyacceptlab
#define YYABORT         goto yyabortlab
#define YYERROR         goto yyerrorlab


#define YYRECOVERING()  (!!yyerrstatus)

#define YYBACKUP(Token, Value)                                    \
  do                                                              \
    if (yychar == YYEMPTY)                                        \
      {                                                           \
        yychar = (Token);                                         \
        yylval = (Value);                                         \
        YYPOPSTACK (yylen);                                       \
        yystate = *yyssp;                                         \
        goto yybackup;                                            \
      }                                                           \
    else                                                          \
      {                                                           \
        yyerror (pc, YY_("syntax error: cannot back up")); \
        YYERROR;                                                  \
      }                                                           \
  while (0)

/* Backward compatibility with an undocumented macro.
   Use YYerror or YYUNDEF. */
#define YYERRCODE YYUNDEF


/* Enable debugging if requested.  */
#if YYDEBUG

# ifndef YYFPRINTF
#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
#  define YYFPRINTF fprintf
# endif

# define YYDPRINTF(Args)                        \
do {                                            \
  if (yydebug)                                  \
    YYFPRINTF Args;                             \
} while (0)

/* This macro is provided for backward compatibility. */
# ifndef YY_LOCATION_PRINT
#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
# endif


# define YY_SYMBOL_PRINT(Title, Kind, Value, Location)                    \
do {                                                                      \
  if (yydebug)                                                            \
    {                                                                     \
      YYFPRINTF (stderr, "%s ", Title);                                   \
      yy_symbol_print (stderr,                                            \
                  Kind, Value, pc); \
      YYFPRINTF (stderr, "\n");                                           \
    }                                                                     \
} while (0)


/*-----------------------------------.
| Print this symbol's value on YYO.  |
`-----------------------------------*/

static void
yy_symbol_value_print (FILE *yyo,
                       yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep, parser_control *pc)
{
  FILE *yyoutput = yyo;
  YYUSE (yyoutput);
  YYUSE (pc);
  if (!yyvaluep)
    return;
# ifdef YYPRINT
  if (yykind < YYNTOKENS)
    YYPRINT (yyo, yytoknum[yykind], *yyvaluep);
# endif
  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  YYUSE (yykind);
  YY_IGNORE_MAYBE_UNINITIALIZED_END
}


/*---------------------------.
| Print this symbol on YYO.  |
`---------------------------*/

static void
yy_symbol_print (FILE *yyo,
                 yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep, parser_control *pc)
{
  YYFPRINTF (yyo, "%s %s (",
             yykind < YYNTOKENS ? "token" : "nterm", yysymbol_name (yykind));

  yy_symbol_value_print (yyo, yykind, yyvaluep, pc);
  YYFPRINTF (yyo, ")");
}

/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
| TOP (included).                                                   |
`------------------------------------------------------------------*/

static void
yy_stack_print (yy_state_t *yybottom, yy_state_t *yytop)
{
  YYFPRINTF (stderr, "Stack now");
  for (; yybottom <= yytop; yybottom++)
    {
      int yybot = *yybottom;
      YYFPRINTF (stderr, " %d", yybot);
    }
  YYFPRINTF (stderr, "\n");
}

# define YY_STACK_PRINT(Bottom, Top)                            \
do {                                                            \
  if (yydebug)                                                  \
    yy_stack_print ((Bottom), (Top));                           \
} while (0)


/*------------------------------------------------.
| Report that the YYRULE is going to be reduced.  |
`------------------------------------------------*/

static void
yy_reduce_print (yy_state_t *yyssp, YYSTYPE *yyvsp,
                 int yyrule, parser_control *pc)
{
  int yylno = yyrline[yyrule];
  int yynrhs = yyr2[yyrule];
  int yyi;
  YYFPRINTF (stderr, "Reducing stack by rule %d (line %d):\n",
             yyrule - 1, yylno);
  /* The symbols being reduced.  */
  for (yyi = 0; yyi < yynrhs; yyi++)
    {
      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
      yy_symbol_print (stderr,
                       YY_ACCESSING_SYMBOL (+yyssp[yyi + 1 - yynrhs]),
                       &yyvsp[(yyi + 1) - (yynrhs)], pc);
      YYFPRINTF (stderr, "\n");
    }
}

# define YY_REDUCE_PRINT(Rule)          \
do {                                    \
  if (yydebug)                          \
    yy_reduce_print (yyssp, yyvsp, Rule, pc); \
} while (0)

/* Nonzero means print parse trace.  It is left uninitialized so that
   multiple parsers can coexist.  */
int yydebug;
#else /* !YYDEBUG */
# define YYDPRINTF(Args) ((void) 0)
# define YY_SYMBOL_PRINT(Title, Kind, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */


/* YYINITDEPTH -- initial size of the parser's stacks.  */
#ifndef YYINITDEPTH
# define YYINITDEPTH 200
#endif

/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
   if the built-in stack extension method is used).

   Do not make this value too large; the results are undefined if
   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
   evaluated with infinite-precision integer arithmetic.  */

#ifndef YYMAXDEPTH
# define YYMAXDEPTH 10000
#endif






/*-----------------------------------------------.
| Release the memory associated to this symbol.  |
`-----------------------------------------------*/

static void
yydestruct (const char *yymsg,
            yysymbol_kind_t yykind, YYSTYPE *yyvaluep, parser_control *pc)
{
  YYUSE (yyvaluep);
  YYUSE (pc);
  if (!yymsg)
    yymsg = "Deleting";
  YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp);

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  YYUSE (yykind);
  YY_IGNORE_MAYBE_UNINITIALIZED_END
}






/*----------.
| yyparse.  |
`----------*/

int
yyparse (parser_control *pc)
{
/* Lookahead token kind.  */
int yychar;


/* The semantic value of the lookahead symbol.  */
/* Default value used for initialization, for pacifying older GCCs
   or non-GCC compilers.  */
YY_INITIAL_VALUE (static YYSTYPE yyval_default;)
YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default);

    /* Number of syntax errors so far.  */
    int yynerrs = 0;

    yy_state_fast_t yystate = 0;
    /* Number of tokens to shift before error messages enabled.  */
    int yyerrstatus = 0;

    /* Refer to the stacks through separate pointers, to allow yyoverflow
       to reallocate them elsewhere.  */

    /* Their size.  */
    YYPTRDIFF_T yystacksize = YYINITDEPTH;

    /* The state stack: array, bottom, top.  */
    yy_state_t yyssa[YYINITDEPTH];
    yy_state_t *yyss = yyssa;
    yy_state_t *yyssp = yyss;

    /* The semantic value stack: array, bottom, top.  */
    YYSTYPE yyvsa[YYINITDEPTH];
    YYSTYPE *yyvs = yyvsa;
    YYSTYPE *yyvsp = yyvs;

  int yyn;
  /* The return value of yyparse.  */
  int yyresult;
  /* Lookahead symbol kind.  */
  yysymbol_kind_t yytoken = YYSYMBOL_YYEMPTY;
  /* The variables used to return semantic value and location from the
     action routines.  */
  YYSTYPE yyval;



#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))

  /* The number of symbols on the RHS of the reduced rule.
     Keep to zero when no symbol should be popped.  */
  int yylen = 0;

  YYDPRINTF ((stderr, "Starting parse\n"));

  yychar = YYEMPTY; /* Cause a token to be read.  */
  goto yysetstate;


/*------------------------------------------------------------.
| yynewstate -- push a new state, which is found in yystate.  |
`------------------------------------------------------------*/
yynewstate:
  /* In all cases, when you get here, the value and location stacks
     have just been pushed.  So pushing a state here evens the stacks.  */
  yyssp++;


/*--------------------------------------------------------------------.
| yysetstate -- set current state (the top of the stack) to yystate.  |
`--------------------------------------------------------------------*/
yysetstate:
  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
  YY_ASSERT (0 <= yystate && yystate < YYNSTATES);
  YY_IGNORE_USELESS_CAST_BEGIN
  *yyssp = YY_CAST (yy_state_t, yystate);
  YY_IGNORE_USELESS_CAST_END
  YY_STACK_PRINT (yyss, yyssp);

  if (yyss + yystacksize - 1 <= yyssp)
#if !defined yyoverflow && !defined YYSTACK_RELOCATE
    goto yyexhaustedlab;
#else
    {
      /* Get the current used size of the three stacks, in elements.  */
      YYPTRDIFF_T yysize = yyssp - yyss + 1;

# if defined yyoverflow
      {
        /* Give user a chance to reallocate the stack.  Use copies of
           these so that the &'s don't force the real ones into
           memory.  */
        yy_state_t *yyss1 = yyss;
        YYSTYPE *yyvs1 = yyvs;

        /* Each stack pointer address is followed by the size of the
           data in use in that stack, in bytes.  This used to be a
           conditional around just the two extra args, but that might
           be undefined if yyoverflow is a macro.  */
        yyoverflow (YY_("memory exhausted"),
                    &yyss1, yysize * YYSIZEOF (*yyssp),
                    &yyvs1, yysize * YYSIZEOF (*yyvsp),
                    &yystacksize);
        yyss = yyss1;
        yyvs = yyvs1;
      }
# else /* defined YYSTACK_RELOCATE */
      /* Extend the stack our own way.  */
      if (YYMAXDEPTH <= yystacksize)
        goto yyexhaustedlab;
      yystacksize *= 2;
      if (YYMAXDEPTH < yystacksize)
        yystacksize = YYMAXDEPTH;

      {
        yy_state_t *yyss1 = yyss;
        union yyalloc *yyptr =
          YY_CAST (union yyalloc *,
                   YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize))));
        if (! yyptr)
          goto yyexhaustedlab;
        YYSTACK_RELOCATE (yyss_alloc, yyss);
        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
#  undef YYSTACK_RELOCATE
        if (yyss1 != yyssa)
          YYSTACK_FREE (yyss1);
      }
# endif

      yyssp = yyss + yysize - 1;
      yyvsp = yyvs + yysize - 1;

      YY_IGNORE_USELESS_CAST_BEGIN
      YYDPRINTF ((stderr, "Stack size increased to %ld\n",
                  YY_CAST (long, yystacksize)));
      YY_IGNORE_USELESS_CAST_END

      if (yyss + yystacksize - 1 <= yyssp)
        YYABORT;
    }
#endif /* !defined yyoverflow && !defined YYSTACK_RELOCATE */

  if (yystate == YYFINAL)
    YYACCEPT;

  goto yybackup;


/*-----------.
| yybackup.  |
`-----------*/
yybackup:
  /* Do appropriate processing given the current state.  Read a
     lookahead token if we need one and don't already have one.  */

  /* First try to decide what to do without reference to lookahead token.  */
  yyn = yypact[yystate];
  if (yypact_value_is_default (yyn))
    goto yydefault;

  /* Not known => get a lookahead token if don't already have one.  */

  /* YYCHAR is either empty, or end-of-input, or a valid lookahead.  */
  if (yychar == YYEMPTY)
    {
      YYDPRINTF ((stderr, "Reading a token\n"));
      yychar = yylex (&yylval, pc);
    }

  if (yychar <= YYEOF)
    {
      yychar = YYEOF;
      yytoken = YYSYMBOL_YYEOF;
      YYDPRINTF ((stderr, "Now at end of input.\n"));
    }
  else if (yychar == YYerror)
    {
      /* The scanner already issued an error message, process directly
         to error recovery.  But do not keep the error token as
         lookahead, it is too special and may lead us to an endless
         loop in error recovery. */
      yychar = YYUNDEF;
      yytoken = YYSYMBOL_YYerror;
      goto yyerrlab1;
    }
  else
    {
      yytoken = YYTRANSLATE (yychar);
      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
    }

  /* If the proper action on seeing token YYTOKEN is to reduce or to
     detect an error, take that action.  */
  yyn += yytoken;
  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
    goto yydefault;
  yyn = yytable[yyn];
  if (yyn <= 0)
    {
      if (yytable_value_is_error (yyn))
        goto yyerrlab;
      yyn = -yyn;
      goto yyreduce;
    }

  /* Count tokens shifted since error; after three, turn off error
     status.  */
  if (yyerrstatus)
    yyerrstatus--;

  /* Shift the lookahead token.  */
  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
  yystate = yyn;
  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END

  /* Discard the shifted token.  */
  yychar = YYEMPTY;
  goto yynewstate;


/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state.  |
`-----------------------------------------------------------*/
yydefault:
  yyn = yydefact[yystate];
  if (yyn == 0)
    goto yyerrlab;
  goto yyreduce;


/*-----------------------------.
| yyreduce -- do a reduction.  |
`-----------------------------*/
yyreduce:
  /* yyn is the number of a rule to reduce with.  */
  yylen = yyr2[yyn];

  /* If YYLEN is nonzero, implement the default value of the action:
     '$$ = $1'.

     Otherwise, the following line sets YYVAL to garbage.
     This behavior is undocumented and Bison
     users should not rely upon it.  Assigning to YYVAL
     unconditionally makes the parser a bit smaller, and it avoids a
     GCC warning that YYVAL may be used uninitialized.  */
  yyval = yyvsp[1-yylen];


  YY_REDUCE_PRINT (yyn);
  switch (yyn)
    {
  case 4: /* timespec: '@' seconds  */
#line 609 "parse-datetime.y"
      {
        pc->seconds = (yyvsp[0].timespec);
        pc->timespec_seen = true;
        debug_print_current_time (_("number of seconds"), pc);
      }
#line 1768 "parse-datetime.c"
    break;

  case 7: /* item: datetime  */
#line 623 "parse-datetime.y"
      {
        pc->times_seen++; pc->dates_seen++;
        debug_print_current_time (_("datetime"), pc);
      }
#line 1777 "parse-datetime.c"
    break;

  case 8: /* item: time  */
#line 628 "parse-datetime.y"
      {
        pc->times_seen++;
        debug_print_current_time (_("time"), pc);
      }
#line 1786 "parse-datetime.c"
    break;

  case 9: /* item: local_zone  */
#line 633 "parse-datetime.y"
      {
        pc->local_zones_seen++;
        debug_print_current_time (_("local_zone"), pc);
      }
#line 1795 "parse-datetime.c"
    break;

  case 10: /* item: zone  */
#line 638 "parse-datetime.y"
      {
        pc->zones_seen++;
        debug_print_current_time (_("zone"), pc);
      }
#line 1804 "parse-datetime.c"
    break;

  case 11: /* item: date  */
#line 643 "parse-datetime.y"
      {
        pc->dates_seen++;
        debug_print_current_time (_("date"), pc);
      }
#line 1813 "parse-datetime.c"
    break;

  case 12: /* item: day  */
#line 648 "parse-datetime.y"
      {
        pc->days_seen++;
        debug_print_current_time (_("day"), pc);
      }
#line 1822 "parse-datetime.c"
    break;

  case 13: /* item: rel  */
#line 653 "parse-datetime.y"
      {
        debug_print_relative_time (_("relative"), pc);
      }
#line 1830 "parse-datetime.c"
    break;

  case 14: /* item: number  */
#line 657 "parse-datetime.y"
      {
        debug_print_current_time (_("number"), pc);
      }
#line 1838 "parse-datetime.c"
    break;

  case 15: /* item: hybrid  */
#line 661 "parse-datetime.y"
      {
        debug_print_relative_time (_("hybrid"), pc);
      }
#line 1846 "parse-datetime.c"
    break;

  case 18: /* time: tUNUMBER tMERIDIAN  */
#line 676 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
        pc->meridian = (yyvsp[0].intval);
      }
#line 1855 "parse-datetime.c"
    break;

  case 19: /* time: tUNUMBER ':' tUNUMBER tMERIDIAN  */
#line 681 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
        pc->meridian = (yyvsp[0].intval);
      }
#line 1864 "parse-datetime.c"
    break;

  case 20: /* time: tUNUMBER ':' tUNUMBER ':' unsigned_seconds tMERIDIAN  */
#line 686 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec);
        pc->meridian = (yyvsp[0].intval);
      }
#line 1873 "parse-datetime.c"
    break;

  case 22: /* iso_8601_time: tUNUMBER zone_offset  */
#line 695 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
        pc->meridian = MER24;
      }
#line 1882 "parse-datetime.c"
    break;

  case 23: /* iso_8601_time: tUNUMBER ':' tUNUMBER o_zone_offset  */
#line 700 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
        pc->meridian = MER24;
      }
#line 1891 "parse-datetime.c"
    break;

  case 24: /* iso_8601_time: tUNUMBER ':' tUNUMBER ':' unsigned_seconds o_zone_offset  */
#line 705 "parse-datetime.y"
      {
        set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec);
        pc->meridian = MER24;
      }
#line 1900 "parse-datetime.c"
    break;

  case 27: /* zone_offset: tSNUMBER o_colon_minutes  */
#line 718 "parse-datetime.y"
      {
        pc->zones_seen++;
        if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval))) YYABORT;
      }
#line 1909 "parse-datetime.c"
    break;

  case 28: /* local_zone: tLOCAL_ZONE  */
#line 743 "parse-datetime.y"
      { pc->local_isdst = (yyvsp[0].intval); }
#line 1915 "parse-datetime.c"
    break;

  case 29: /* local_zone: tLOCAL_ZONE tDST  */
#line 745 "parse-datetime.y"
      {
        pc->local_isdst = 1;
        pc->dsts_seen++;
      }
#line 1924 "parse-datetime.c"
    break;

  case 30: /* zone: tZONE  */
#line 755 "parse-datetime.y"
      { pc->time_zone = (yyvsp[0].intval); }
#line 1930 "parse-datetime.c"
    break;

  case 31: /* zone: 'T'  */
#line 757 "parse-datetime.y"
      { pc->time_zone = -HOUR (7); }
#line 1936 "parse-datetime.c"
    break;

  case 32: /* zone: tZONE relunit_snumber  */
#line 759 "parse-datetime.y"
      { pc->time_zone = (yyvsp[-1].intval);
        if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
        debug_print_relative_time (_("relative"), pc);
      }
#line 1945 "parse-datetime.c"
    break;

  case 33: /* zone: 'T' relunit_snumber  */
#line 764 "parse-datetime.y"
      { pc->time_zone = -HOUR (7);
        if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
        debug_print_relative_time (_("relative"), pc);
      }
#line 1954 "parse-datetime.c"
    break;

  case 34: /* zone: tZONE tSNUMBER o_colon_minutes  */
#line 769 "parse-datetime.y"
      { if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval))) YYABORT;
        if (INT_ADD_WRAPV (pc->time_zone, (yyvsp[-2].intval), &pc->time_zone)) YYABORT; }
#line 1961 "parse-datetime.c"
    break;

  case 35: /* zone: tDAYZONE  */
#line 772 "parse-datetime.y"
      { pc->time_zone = (yyvsp[0].intval) + 60 * 60; }
#line 1967 "parse-datetime.c"
    break;

  case 36: /* zone: tZONE tDST  */
#line 774 "parse-datetime.y"
      { pc->time_zone = (yyvsp[-1].intval) + 60 * 60; }
#line 1973 "parse-datetime.c"
    break;

  case 37: /* day: tDAY  */
#line 779 "parse-datetime.y"
      {
        pc->day_ordinal = 0;
        pc->day_number = (yyvsp[0].intval);
      }
#line 1982 "parse-datetime.c"
    break;

  case 38: /* day: tDAY ','  */
#line 784 "parse-datetime.y"
      {
        pc->day_ordinal = 0;
        pc->day_number = (yyvsp[-1].intval);
      }
#line 1991 "parse-datetime.c"
    break;

  case 39: /* day: tORDINAL tDAY  */
#line 789 "parse-datetime.y"
      {
        pc->day_ordinal = (yyvsp[-1].intval);
        pc->day_number = (yyvsp[0].intval);
        pc->debug_ordinal_day_seen = true;
      }
#line 2001 "parse-datetime.c"
    break;

  case 40: /* day: tUNUMBER tDAY  */
#line 795 "parse-datetime.y"
      {
        pc->day_ordinal = (yyvsp[-1].textintval).value;
        pc->day_number = (yyvsp[0].intval);
        pc->debug_ordinal_day_seen = true;
      }
#line 2011 "parse-datetime.c"
    break;

  case 41: /* date: tUNUMBER '/' tUNUMBER  */
#line 804 "parse-datetime.y"
      {
        pc->month = (yyvsp[-2].textintval).value;
        pc->day = (yyvsp[0].textintval).value;
      }
#line 2020 "parse-datetime.c"
    break;

  case 42: /* date: tUNUMBER '/' tUNUMBER '/' tUNUMBER  */
#line 809 "parse-datetime.y"
      {
        /* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
           otherwise as MM/DD/YY.
           The goal in recognizing YYYY/MM/DD is solely to support legacy
           machine-generated dates like those in an RCS log listing.  If
           you want portability, use the ISO 8601 format.  */
        if (4 <= (yyvsp[-4].textintval).digits)
          {
            if (debugging (pc))
              {
                intmax_t digits = (yyvsp[-4].textintval).digits;
                dbg_printf (_("warning: value %"PRIdMAX" has %"PRIdMAX" digits. "
                              "Assuming YYYY/MM/DD\n"),
                            (yyvsp[-4].textintval).value, digits);
              }

            pc->year = (yyvsp[-4].textintval);
            pc->month = (yyvsp[-2].textintval).value;
            pc->day = (yyvsp[0].textintval).value;
          }
        else
          {
            if (debugging (pc))
              dbg_printf (_("warning: value %"PRIdMAX" has less than 4 digits. "
                            "Assuming MM/DD/YY[YY]\n"),
                          (yyvsp[-4].textintval).value);

            pc->month = (yyvsp[-4].textintval).value;
            pc->day = (yyvsp[-2].textintval).value;
            pc->year = (yyvsp[0].textintval);
          }
      }
#line 2057 "parse-datetime.c"
    break;

  case 43: /* date: tUNUMBER tMONTH tSNUMBER  */
#line 842 "parse-datetime.y"
      {
        /* E.g., 17-JUN-1992.  */
        pc->day = (yyvsp[-2].textintval).value;
        pc->month = (yyvsp[-1].intval);
        if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->year.value)) YYABORT;
        pc->year.digits = (yyvsp[0].textintval).digits;
      }
#line 2069 "parse-datetime.c"
    break;

  case 44: /* date: tMONTH tSNUMBER tSNUMBER  */
#line 850 "parse-datetime.y"
      {
        /* E.g., JUN-17-1992.  */
        pc->month = (yyvsp[-2].intval);
        if (INT_SUBTRACT_WRAPV (0, (yyvsp[-1].textintval).value, &pc->day)) YYABORT;
        if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->year.value)) YYABORT;
        pc->year.digits = (yyvsp[0].textintval).digits;
      }
#line 2081 "parse-datetime.c"
    break;

  case 45: /* date: tMONTH tUNUMBER  */
#line 858 "parse-datetime.y"
      {
        pc->month = (yyvsp[-1].intval);
        pc->day = (yyvsp[0].textintval).value;
      }
#line 2090 "parse-datetime.c"
    break;

  case 46: /* date: tMONTH tUNUMBER ',' tUNUMBER  */
#line 863 "parse-datetime.y"
      {
        pc->month = (yyvsp[-3].intval);
        pc->day = (yyvsp[-2].textintval).value;
        pc->year = (yyvsp[0].textintval);
      }
#line 2100 "parse-datetime.c"
    break;

  case 47: /* date: tUNUMBER tMONTH  */
#line 869 "parse-datetime.y"
      {
        pc->day = (yyvsp[-1].textintval).value;
        pc->month = (yyvsp[0].intval);
      }
#line 2109 "parse-datetime.c"
    break;

  case 48: /* date: tUNUMBER tMONTH tUNUMBER  */
#line 874 "parse-datetime.y"
      {
        pc->day = (yyvsp[-2].textintval).value;
        pc->month = (yyvsp[-1].intval);
        pc->year = (yyvsp[0].textintval);
      }
#line 2119 "parse-datetime.c"
    break;

  case 50: /* iso_8601_date: tUNUMBER tSNUMBER tSNUMBER  */
#line 884 "parse-datetime.y"
      {
        /* ISO 8601 format.  YYYY-MM-DD.  */
        pc->year = (yyvsp[-2].textintval);
        if (INT_SUBTRACT_WRAPV (0, (yyvsp[-1].textintval).value, &pc->month)) YYABORT;
        if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->day)) YYABORT;
      }
#line 2130 "parse-datetime.c"
    break;

  case 51: /* rel: relunit tAGO  */
#line 894 "parse-datetime.y"
      { if (! apply_relative_time (pc, (yyvsp[-1].rel), (yyvsp[0].intval))) YYABORT; }
#line 2136 "parse-datetime.c"
    break;

  case 52: /* rel: relunit  */
#line 896 "parse-datetime.y"
      { if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT; }
#line 2142 "parse-datetime.c"
    break;

  case 53: /* rel: dayshift  */
#line 898 "parse-datetime.y"
      { if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT; }
#line 2148 "parse-datetime.c"
    break;

  case 54: /* relunit: tORDINAL tYEAR_UNIT  */
#line 903 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].intval); }
#line 2154 "parse-datetime.c"
    break;

  case 55: /* relunit: tUNUMBER tYEAR_UNIT  */
#line 905 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
#line 2160 "parse-datetime.c"
    break;

  case 56: /* relunit: tYEAR_UNIT  */
#line 907 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
#line 2166 "parse-datetime.c"
    break;

  case 57: /* relunit: tORDINAL tMONTH_UNIT  */
#line 909 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].intval); }
#line 2172 "parse-datetime.c"
    break;

  case 58: /* relunit: tUNUMBER tMONTH_UNIT  */
#line 911 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
#line 2178 "parse-datetime.c"
    break;

  case 59: /* relunit: tMONTH_UNIT  */
#line 913 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
#line 2184 "parse-datetime.c"
    break;

  case 60: /* relunit: tORDINAL tDAY_UNIT  */
#line 915 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0;
        if (INT_MULTIPLY_WRAPV ((yyvsp[-1].intval), (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
#line 2191 "parse-datetime.c"
    break;

  case 61: /* relunit: tUNUMBER tDAY_UNIT  */
#line 918 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0;
        if (INT_MULTIPLY_WRAPV ((yyvsp[-1].textintval).value, (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
#line 2198 "parse-datetime.c"
    break;

  case 62: /* relunit: tDAY_UNIT  */
#line 921 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
#line 2204 "parse-datetime.c"
    break;

  case 63: /* relunit: tORDINAL tHOUR_UNIT  */
#line 923 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].intval); }
#line 2210 "parse-datetime.c"
    break;

  case 64: /* relunit: tUNUMBER tHOUR_UNIT  */
#line 925 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
#line 2216 "parse-datetime.c"
    break;

  case 65: /* relunit: tHOUR_UNIT  */
#line 927 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
#line 2222 "parse-datetime.c"
    break;

  case 66: /* relunit: tORDINAL tMINUTE_UNIT  */
#line 929 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].intval); }
#line 2228 "parse-datetime.c"
    break;

  case 67: /* relunit: tUNUMBER tMINUTE_UNIT  */
#line 931 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
#line 2234 "parse-datetime.c"
    break;

  case 68: /* relunit: tMINUTE_UNIT  */
#line 933 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
#line 2240 "parse-datetime.c"
    break;

  case 69: /* relunit: tORDINAL tSEC_UNIT  */
#line 935 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].intval); }
#line 2246 "parse-datetime.c"
    break;

  case 70: /* relunit: tUNUMBER tSEC_UNIT  */
#line 937 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
#line 2252 "parse-datetime.c"
    break;

  case 71: /* relunit: tSDECIMAL_NUMBER tSEC_UNIT  */
#line 939 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
#line 2258 "parse-datetime.c"
    break;

  case 72: /* relunit: tUDECIMAL_NUMBER tSEC_UNIT  */
#line 941 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
#line 2264 "parse-datetime.c"
    break;

  case 73: /* relunit: tSEC_UNIT  */
#line 943 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
#line 2270 "parse-datetime.c"
    break;

  case 75: /* relunit_snumber: tSNUMBER tYEAR_UNIT  */
#line 949 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
#line 2276 "parse-datetime.c"
    break;

  case 76: /* relunit_snumber: tSNUMBER tMONTH_UNIT  */
#line 951 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
#line 2282 "parse-datetime.c"
    break;

  case 77: /* relunit_snumber: tSNUMBER tDAY_UNIT  */
#line 953 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0;
        if (INT_MULTIPLY_WRAPV ((yyvsp[-1].textintval).value, (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
#line 2289 "parse-datetime.c"
    break;

  case 78: /* relunit_snumber: tSNUMBER tHOUR_UNIT  */
#line 956 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
#line 2295 "parse-datetime.c"
    break;

  case 79: /* relunit_snumber: tSNUMBER tMINUTE_UNIT  */
#line 958 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
#line 2301 "parse-datetime.c"
    break;

  case 80: /* relunit_snumber: tSNUMBER tSEC_UNIT  */
#line 960 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
#line 2307 "parse-datetime.c"
    break;

  case 81: /* dayshift: tDAY_SHIFT  */
#line 965 "parse-datetime.y"
      { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
#line 2313 "parse-datetime.c"
    break;

  case 85: /* signed_seconds: tSNUMBER  */
#line 973 "parse-datetime.y"
      { if (time_overflow ((yyvsp[0].textintval).value)) YYABORT;
        (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
#line 2320 "parse-datetime.c"
    break;

  case 87: /* unsigned_seconds: tUNUMBER  */
#line 980 "parse-datetime.y"
      { if (time_overflow ((yyvsp[0].textintval).value)) YYABORT;
        (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
#line 2327 "parse-datetime.c"
    break;

  case 88: /* number: tUNUMBER  */
#line 986 "parse-datetime.y"
      { digits_to_date_time (pc, (yyvsp[0].textintval)); }
#line 2333 "parse-datetime.c"
    break;

  case 89: /* hybrid: tUNUMBER relunit_snumber  */
#line 991 "parse-datetime.y"
      {
        /* Hybrid all-digit and relative offset, so that we accept e.g.,
           "YYYYMMDD +N days" as well as "YYYYMMDD N days".  */
        digits_to_date_time (pc, (yyvsp[-1].textintval));
        if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
      }
#line 2344 "parse-datetime.c"
    break;

  case 90: /* o_colon_minutes: %empty  */
#line 1001 "parse-datetime.y"
      { (yyval.intval) = -1; }
#line 2350 "parse-datetime.c"
    break;

  case 91: /* o_colon_minutes: ':' tUNUMBER  */
#line 1003 "parse-datetime.y"
      { (yyval.intval) = (yyvsp[0].textintval).value; }
#line 2356 "parse-datetime.c"
    break;


#line 2360 "parse-datetime.c"

      default: break;
    }
  /* User semantic actions sometimes alter yychar, and that requires
     that yytoken be updated with the new translation.  We take the
     approach of translating immediately before every use of yytoken.
     One alternative is translating here after every semantic action,
     but that translation would be missed if the semantic action invokes
     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
     incorrect destructor might then be invoked immediately.  In the
     case of YYERROR or YYBACKUP, subsequent parser actions might lead
     to an incorrect destructor call or verbose syntax error message
     before the lookahead is translated.  */
  YY_SYMBOL_PRINT ("-> $$ =", YY_CAST (yysymbol_kind_t, yyr1[yyn]), &yyval, &yyloc);

  YYPOPSTACK (yylen);
  yylen = 0;

  *++yyvsp = yyval;

  /* Now 'shift' the result of the reduction.  Determine what state
     that goes to, based on the state we popped back to and the rule
     number reduced by.  */
  {
    const int yylhs = yyr1[yyn] - YYNTOKENS;
    const int yyi = yypgoto[yylhs] + *yyssp;
    yystate = (0 <= yyi && yyi <= YYLAST && yycheck[yyi] == *yyssp
               ? yytable[yyi]
               : yydefgoto[yylhs]);
  }

  goto yynewstate;


/*--------------------------------------.
| yyerrlab -- here on detecting error.  |
`--------------------------------------*/
yyerrlab:
  /* Make sure we have latest lookahead translation.  See comments at
     user semantic actions for why this is necessary.  */
  yytoken = yychar == YYEMPTY ? YYSYMBOL_YYEMPTY : YYTRANSLATE (yychar);
  /* If not already recovering from an error, report this error.  */
  if (!yyerrstatus)
    {
      ++yynerrs;
      yyerror (pc, YY_("syntax error"));
    }

  if (yyerrstatus == 3)
    {
      /* If just tried and failed to reuse lookahead token after an
         error, discard it.  */

      if (yychar <= YYEOF)
        {
          /* Return failure if at end of input.  */
          if (yychar == YYEOF)
            YYABORT;
        }
      else
        {
          yydestruct ("Error: discarding",
                      yytoken, &yylval, pc);
          yychar = YYEMPTY;
        }
    }

  /* Else will try to reuse lookahead token after shifting the error
     token.  */
  goto yyerrlab1;


/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR.  |
`---------------------------------------------------*/
yyerrorlab:
  /* Pacify compilers when the user code never invokes YYERROR and the
     label yyerrorlab therefore never appears in user code.  */
  if (0)
    YYERROR;

  /* Do not reclaim the symbols of the rule whose action triggered
     this YYERROR.  */
  YYPOPSTACK (yylen);
  yylen = 0;
  YY_STACK_PRINT (yyss, yyssp);
  yystate = *yyssp;
  goto yyerrlab1;


/*-------------------------------------------------------------.
| yyerrlab1 -- common code for both syntax error and YYERROR.  |
`-------------------------------------------------------------*/
yyerrlab1:
  yyerrstatus = 3;      /* Each real token shifted decrements this.  */

  /* Pop stack until we find a state that shifts the error token.  */
  for (;;)
    {
      yyn = yypact[yystate];
      if (!yypact_value_is_default (yyn))
        {
          yyn += YYSYMBOL_YYerror;
          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYSYMBOL_YYerror)
            {
              yyn = yytable[yyn];
              if (0 < yyn)
                break;
            }
        }

      /* Pop the current state because it cannot handle the error token.  */
      if (yyssp == yyss)
        YYABORT;


      yydestruct ("Error: popping",
                  YY_ACCESSING_SYMBOL (yystate), yyvsp, pc);
      YYPOPSTACK (1);
      yystate = *yyssp;
      YY_STACK_PRINT (yyss, yyssp);
    }

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END


  /* Shift the error token.  */
  YY_SYMBOL_PRINT ("Shifting", YY_ACCESSING_SYMBOL (yyn), yyvsp, yylsp);

  yystate = yyn;
  goto yynewstate;


/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here.  |
`-------------------------------------*/
yyacceptlab:
  yyresult = 0;
  goto yyreturn;


/*-----------------------------------.
| yyabortlab -- YYABORT comes here.  |
`-----------------------------------*/
yyabortlab:
  yyresult = 1;
  goto yyreturn;


#if !defined yyoverflow
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here.  |
`-------------------------------------------------*/
yyexhaustedlab:
  yyerror (pc, YY_("memory exhausted"));
  yyresult = 2;
  goto yyreturn;
#endif


/*-------------------------------------------------------.
| yyreturn -- parsing is finished, clean up and return.  |
`-------------------------------------------------------*/
yyreturn:
  if (yychar != YYEMPTY)
    {
      /* Make sure we have latest lookahead translation.  See comments at
         user semantic actions for why this is necessary.  */
      yytoken = YYTRANSLATE (yychar);
      yydestruct ("Cleanup: discarding lookahead",
                  yytoken, &yylval, pc);
    }
  /* Do not reclaim the symbols of the rule whose action triggered
     this YYABORT or YYACCEPT.  */
  YYPOPSTACK (yylen);
  YY_STACK_PRINT (yyss, yyssp);
  while (yyssp != yyss)
    {
      yydestruct ("Cleanup: popping",
                  YY_ACCESSING_SYMBOL (+*yyssp), yyvsp, pc);
      YYPOPSTACK (1);
    }
#ifndef yyoverflow
  if (yyss != yyssa)
    YYSTACK_FREE (yyss);
#endif

  return yyresult;
}

#line 1006 "parse-datetime.y"


static table const meridian_table[] =
{
  { "AM",   tMERIDIAN, MERam },
  { "A.M.", tMERIDIAN, MERam },
  { "PM",   tMERIDIAN, MERpm },
  { "P.M.", tMERIDIAN, MERpm },
  { NULL, 0, 0 }
};

static table const dst_table[] =
{
  { "DST", tDST, 0 }
};

static table const month_and_day_table[] =
{
  { "JANUARY",  tMONTH,  1 },
  { "FEBRUARY", tMONTH,  2 },
  { "MARCH",    tMONTH,  3 },
  { "APRIL",    tMONTH,  4 },
  { "MAY",      tMONTH,  5 },
  { "JUNE",     tMONTH,  6 },
  { "JULY",     tMONTH,  7 },
  { "AUGUST",   tMONTH,  8 },
  { "SEPTEMBER",tMONTH,  9 },
  { "SEPT",     tMONTH,  9 },
  { "OCTOBER",  tMONTH, 10 },
  { "NOVEMBER", tMONTH, 11 },
  { "DECEMBER", tMONTH, 12 },
  { "SUNDAY",   tDAY,    0 },
  { "MONDAY",   tDAY,    1 },
  { "TUESDAY",  tDAY,    2 },
  { "TUES",     tDAY,    2 },
  { "WEDNESDAY",tDAY,    3 },
  { "WEDNES",   tDAY,    3 },
  { "THURSDAY", tDAY,    4 },
  { "THUR",     tDAY,    4 },
  { "THURS",    tDAY,    4 },
  { "FRIDAY",   tDAY,    5 },
  { "SATURDAY", tDAY,    6 },
  { NULL, 0, 0 }
};

static table const time_units_table[] =
{
  { "YEAR",     tYEAR_UNIT,      1 },
  { "MONTH",    tMONTH_UNIT,     1 },
  { "FORTNIGHT",tDAY_UNIT,      14 },
  { "WEEK",     tDAY_UNIT,       7 },
  { "DAY",      tDAY_UNIT,       1 },
  { "HOUR",     tHOUR_UNIT,      1 },
  { "MINUTE",   tMINUTE_UNIT,    1 },
  { "MIN",      tMINUTE_UNIT,    1 },
  { "SECOND",   tSEC_UNIT,       1 },
  { "SEC",      tSEC_UNIT,       1 },
  { NULL, 0, 0 }
};

/* Assorted relative-time words.  */
static table const relative_time_table[] =
{
  { "TOMORROW", tDAY_SHIFT,      1 },
  { "YESTERDAY",tDAY_SHIFT,     -1 },
  { "TODAY",    tDAY_SHIFT,      0 },
  { "NOW",      tDAY_SHIFT,      0 },
  { "LAST",     tORDINAL,       -1 },
  { "THIS",     tORDINAL,        0 },
  { "NEXT",     tORDINAL,        1 },
  { "FIRST",    tORDINAL,        1 },
/*{ "SECOND",   tORDINAL,        2 }, */
  { "THIRD",    tORDINAL,        3 },
  { "FOURTH",   tORDINAL,        4 },
  { "FIFTH",    tORDINAL,        5 },
  { "SIXTH",    tORDINAL,        6 },
  { "SEVENTH",  tORDINAL,        7 },
  { "EIGHTH",   tORDINAL,        8 },
  { "NINTH",    tORDINAL,        9 },
  { "TENTH",    tORDINAL,       10 },
  { "ELEVENTH", tORDINAL,       11 },
  { "TWELFTH",  tORDINAL,       12 },
  { "AGO",      tAGO,           -1 },
  { "HENCE",    tAGO,            1 },
  { NULL, 0, 0 }
};

/* The universal time zone table.  These labels can be used even for
   timestamps that would not otherwise be valid, e.g., GMT timestamps
   oin London during summer.  */
static table const universal_time_zone_table[] =
{
  { "GMT",      tZONE,     HOUR ( 0) }, /* Greenwich Mean */
  { "UT",       tZONE,     HOUR ( 0) }, /* Universal (Coordinated) */
  { "UTC",      tZONE,     HOUR ( 0) },
  { NULL, 0, 0 }
};

/* The time zone table.  This table is necessarily incomplete, as time
   zone abbreviations are ambiguous; e.g., Australians interpret "EST"
   as Eastern time in Australia, not as US Eastern Standard Time.
   You cannot rely on parse_datetime to handle arbitrary time zone
   abbreviations; use numeric abbreviations like "-0500" instead.  */
static table const time_zone_table[] =
{
  { "WET",      tZONE,     HOUR ( 0) }, /* Western European */
  { "WEST",     tDAYZONE,  HOUR ( 0) }, /* Western European Summer */
  { "BST",      tDAYZONE,  HOUR ( 0) }, /* British Summer */
  { "ART",      tZONE,    -HOUR ( 3) }, /* Argentina */
  { "BRT",      tZONE,    -HOUR ( 3) }, /* Brazil */
  { "BRST",     tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */
  { "NST",      tZONE,   -(HOUR ( 3) + 30 * 60) }, /* Newfoundland Standard */
  { "NDT",      tDAYZONE,-(HOUR ( 3) + 30 * 60) }, /* Newfoundland Daylight */
  { "AST",      tZONE,    -HOUR ( 4) }, /* Atlantic Standard */
  { "ADT",      tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */
  { "CLT",      tZONE,    -HOUR ( 4) }, /* Chile */
  { "CLST",     tDAYZONE, -HOUR ( 4) }, /* Chile Summer */
  { "EST",      tZONE,    -HOUR ( 5) }, /* Eastern Standard */
  { "EDT",      tDAYZONE, -HOUR ( 5) }, /* Eastern Daylight */
  { "CST",      tZONE,    -HOUR ( 6) }, /* Central Standard */
  { "CDT",      tDAYZONE, -HOUR ( 6) }, /* Central Daylight */
  { "MST",      tZONE,    -HOUR ( 7) }, /* Mountain Standard */
  { "MDT",      tDAYZONE, -HOUR ( 7) }, /* Mountain Daylight */
  { "PST",      tZONE,    -HOUR ( 8) }, /* Pacific Standard */
  { "PDT",      tDAYZONE, -HOUR ( 8) }, /* Pacific Daylight */
  { "AKST",     tZONE,    -HOUR ( 9) }, /* Alaska Standard */
  { "AKDT",     tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */
  { "HST",      tZONE,    -HOUR (10) }, /* Hawaii Standard */
  { "HAST",     tZONE,    -HOUR (10) }, /* Hawaii-Aleutian Standard */
  { "HADT",     tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */
  { "SST",      tZONE,    -HOUR (12) }, /* Samoa Standard */
  { "WAT",      tZONE,     HOUR ( 1) }, /* West Africa */
  { "CET",      tZONE,     HOUR ( 1) }, /* Central European */
  { "CEST",     tDAYZONE,  HOUR ( 1) }, /* Central European Summer */
  { "MET",      tZONE,     HOUR ( 1) }, /* Middle European */
  { "MEZ",      tZONE,     HOUR ( 1) }, /* Middle European */
  { "MEST",     tDAYZONE,  HOUR ( 1) }, /* Middle European Summer */
  { "MESZ",     tDAYZONE,  HOUR ( 1) }, /* Middle European Summer */
  { "EET",      tZONE,     HOUR ( 2) }, /* Eastern European */
  { "EEST",     tDAYZONE,  HOUR ( 2) }, /* Eastern European Summer */
  { "CAT",      tZONE,     HOUR ( 2) }, /* Central Africa */
  { "SAST",     tZONE,     HOUR ( 2) }, /* South Africa Standard */
  { "EAT",      tZONE,     HOUR ( 3) }, /* East Africa */
  { "MSK",      tZONE,     HOUR ( 3) }, /* Moscow */
  { "MSD",      tDAYZONE,  HOUR ( 3) }, /* Moscow Daylight */
  { "IST",      tZONE,    (HOUR ( 5) + 30 * 60) }, /* India Standard */
  { "SGT",      tZONE,     HOUR ( 8) }, /* Singapore */
  { "KST",      tZONE,     HOUR ( 9) }, /* Korea Standard */
  { "JST",      tZONE,     HOUR ( 9) }, /* Japan Standard */
  { "GST",      tZONE,     HOUR (10) }, /* Guam Standard */
  { "NZST",     tZONE,     HOUR (12) }, /* New Zealand Standard */
  { "NZDT",     tDAYZONE,  HOUR (12) }, /* New Zealand Daylight */
  { NULL, 0, 0 }
};

/* Military time zone table.

   RFC 822 got these backwards, but RFC 5322 makes the incorrect
   treatment optional, so do them the right way here.

   Note 'T' is a special case, as it is used as the separator in ISO
   8601 date and time of day representation.  */
static table const military_table[] =
{
  { "A", tZONE,  HOUR ( 1) },
  { "B", tZONE,  HOUR ( 2) },
  { "C", tZONE,  HOUR ( 3) },
  { "D", tZONE,  HOUR ( 4) },
  { "E", tZONE,  HOUR ( 5) },
  { "F", tZONE,  HOUR ( 6) },
  { "G", tZONE,  HOUR ( 7) },
  { "H", tZONE,  HOUR ( 8) },
  { "I", tZONE,  HOUR ( 9) },
  { "K", tZONE,  HOUR (10) },
  { "L", tZONE,  HOUR (11) },
  { "M", tZONE,  HOUR (12) },
  { "N", tZONE, -HOUR ( 1) },
  { "O", tZONE, -HOUR ( 2) },
  { "P", tZONE, -HOUR ( 3) },
  { "Q", tZONE, -HOUR ( 4) },
  { "R", tZONE, -HOUR ( 5) },
  { "S", tZONE, -HOUR ( 6) },
  { "T", 'T',    0 },
  { "U", tZONE, -HOUR ( 8) },
  { "V", tZONE, -HOUR ( 9) },
  { "W", tZONE, -HOUR (10) },
  { "X", tZONE, -HOUR (11) },
  { "Y", tZONE, -HOUR (12) },
  { "Z", tZONE,  HOUR ( 0) },
  { NULL, 0, 0 }
};



/* Convert a time zone expressed as HH:MM into an integer count of
   seconds.  If MM is negative, then S is of the form HHMM and needs
   to be picked apart; otherwise, S is of the form HH.  As specified in
   https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_03, allow
   only valid TZ range, and consider first two digits as hours, if no
   minutes specified.  Return true if successful.  */

static bool
time_zone_hhmm (parser_control *pc, textint s, intmax_t mm)
{
  intmax_t n_minutes;
  bool overflow = false;

  /* If the length of S is 1 or 2 and no minutes are specified,
     interpret it as a number of hours.  */
  if (s.digits <= 2 && mm < 0)
    s.value *= 100;

  if (mm < 0)
    n_minutes = (s.value / 100) * 60 + s.value % 100;
  else
    {
      overflow |= INT_MULTIPLY_WRAPV (s.value, 60, &n_minutes);
      overflow |= (s.negative
                   ? INT_SUBTRACT_WRAPV (n_minutes, mm, &n_minutes)
                   : INT_ADD_WRAPV (n_minutes, mm, &n_minutes));
    }

  if (overflow || ! (-24 * 60 <= n_minutes && n_minutes <= 24 * 60))
    return false;
  pc->time_zone = n_minutes * 60;
  return true;
}

static int
to_hour (intmax_t hours, int meridian)
{
  switch (meridian)
    {
    default: /* Pacify GCC.  */
    case MER24:
      return 0 <= hours && hours < 24 ? hours : -1;
    case MERam:
      return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
    case MERpm:
      return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
    }
}

enum { TM_YEAR_BASE = 1900 };
enum { TM_YEAR_BUFSIZE = INT_BUFSIZE_BOUND (int) + 1 };

/* Convert TM_YEAR, a year minus 1900, to a string that is numerically
   correct even if subtracting 1900 would overflow.  */

static char const *
tm_year_str (int tm_year, char buf[TM_YEAR_BUFSIZE])
{
  verify (TM_YEAR_BASE % 100 == 0);
  sprintf (buf, &"-%02d%02d"[-TM_YEAR_BASE <= tm_year],
           abs (tm_year / 100 + TM_YEAR_BASE / 100),
           abs (tm_year % 100));
  return buf;
}

/* Convert a text year number to a year minus 1900, working correctly
   even if the input is in the range INT_MAX .. INT_MAX + 1900 - 1.  */

static bool
to_tm_year (textint textyear, bool debug, int *tm_year)
{
  intmax_t year = textyear.value;

  /* XPG4 suggests that years 00-68 map to 2000-2068, and
     years 69-99 map to 1969-1999.  */
  if (0 <= year && textyear.digits == 2)
    {
      year += year < 69 ? 2000 : 1900;
      if (debug)
        dbg_printf (_("warning: adjusting year value %"PRIdMAX
                      " to %"PRIdMAX"\n"),
                    textyear.value, year);
    }

  if (year < 0
      ? INT_SUBTRACT_WRAPV (-TM_YEAR_BASE, year, tm_year)
      : INT_SUBTRACT_WRAPV (year, TM_YEAR_BASE, tm_year))
    {
      if (debug)
        dbg_printf (_("error: out-of-range year %"PRIdMAX"\n"), year);
      return false;
    }

  return true;
}

static table const * _GL_ATTRIBUTE_PURE
lookup_zone (parser_control const *pc, char const *name)
{
  table const *tp;

  for (tp = universal_time_zone_table; tp->name; tp++)
    if (strcmp (name, tp->name) == 0)
      return tp;

  /* Try local zone abbreviations before those in time_zone_table, as
     the local ones are more likely to be right.  */
  for (tp = pc->local_time_zone_table; tp->name; tp++)
    if (strcmp (name, tp->name) == 0)
      return tp;

  for (tp = time_zone_table; tp->name; tp++)
    if (strcmp (name, tp->name) == 0)
      return tp;

  return NULL;
}

#if ! HAVE_TM_GMTOFF
/* Yield the difference between *A and *B,
   measured in seconds, ignoring leap seconds.
   The body of this function is taken directly from the GNU C Library;
   see strftime.c.  */
static int
tm_diff (const struct tm *a, const struct tm *b)
{
  /* Compute intervening leap days correctly even if year is negative.
     Take care to avoid int overflow in leap day calculations,
     but it's OK to assume that A and B are close to each other.  */
  int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
  int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
  int a100 = a4 / 25 - (a4 % 25 < 0);
  int b100 = b4 / 25 - (b4 % 25 < 0);
  int a400 = SHR (a100, 2);
  int b400 = SHR (b100, 2);
  int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
  int years = a->tm_year - b->tm_year;
  int days = (365 * years + intervening_leap_days
              + (a->tm_yday - b->tm_yday));
  return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
                + (a->tm_min - b->tm_min))
          + (a->tm_sec - b->tm_sec));
}
#endif /* ! HAVE_TM_GMTOFF */

static table const *
lookup_word (parser_control const *pc, char *word)
{
  char *p;
  char *q;
  idx_t wordlen;
  table const *tp;
  bool period_found;
  bool abbrev;

  /* Make it uppercase.  */
  for (p = word; *p; p++)
    *p = c_toupper (to_uchar (*p));

  for (tp = meridian_table; tp->name; tp++)
    if (strcmp (word, tp->name) == 0)
      return tp;

  /* See if we have an abbreviation for a month.  */
  wordlen = strlen (word);
  abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');

  for (tp = month_and_day_table; tp->name; tp++)
    if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
      return tp;

  if ((tp = lookup_zone (pc, word)))
    return tp;

  if (strcmp (word, dst_table[0].name) == 0)
    return dst_table;

  for (tp = time_units_table; tp->name; tp++)
    if (strcmp (word, tp->name) == 0)
      return tp;

  /* Strip off any plural and try the units table again.  */
  if (word[wordlen - 1] == 'S')
    {
      word[wordlen - 1] = '\0';
      for (tp = time_units_table; tp->name; tp++)
        if (strcmp (word, tp->name) == 0)
          return tp;
      word[wordlen - 1] = 'S';  /* For "this" in relative_time_table.  */
    }

  for (tp = relative_time_table; tp->name; tp++)
    if (strcmp (word, tp->name) == 0)
      return tp;

  /* Military time zones.  */
  if (wordlen == 1)
    for (tp = military_table; tp->name; tp++)
      if (word[0] == tp->name[0])
        return tp;

  /* Drop out any periods and try the time zone table again.  */
  for (period_found = false, p = q = word; (*p = *q); q++)
    if (*q == '.')
      period_found = true;
    else
      p++;
  if (period_found && (tp = lookup_zone (pc, word)))
    return tp;

  return NULL;
}

static int
yylex (union YYSTYPE *lvalp, parser_control *pc)
{
  unsigned char c;

  for (;;)
    {
      while (c = *pc->input, c_isspace (c))
        pc->input++;

      if (c_isdigit (c) || c == '-' || c == '+')
        {
          char const *p = pc->input;
          int sign;
          if (c == '-' || c == '+')
            {
              sign = c == '-' ? -1 : 1;
              while (c = *(pc->input = ++p), c_isspace (c))
                continue;
              if (! c_isdigit (c))
                /* skip the '-' sign */
                continue;
            }
          else
            sign = 0;

          time_t value = 0;
          do
            {
              if (INT_MULTIPLY_WRAPV (value, 10, &value))
                return '?';
              if (INT_ADD_WRAPV (value, sign < 0 ? '0' - c : c - '0', &value))
                return '?';
              c = *++p;
            }
          while (c_isdigit (c));

          if ((c == '.' || c == ',') && c_isdigit (p[1]))
            {
              time_t s = value;
              int digits;

              /* Accumulate fraction, to ns precision.  */
              p++;
              int ns = *p++ - '0';
              for (digits = 2; digits <= LOG10_BILLION; digits++)
                {
                  ns *= 10;
                  if (c_isdigit (*p))
                    ns += *p++ - '0';
                }

              /* Skip excess digits, truncating toward -Infinity.  */
              if (sign < 0)
                for (; c_isdigit (*p); p++)
                  if (*p != '0')
                    {
                      ns++;
                      break;
                    }
              while (c_isdigit (*p))
                p++;

              /* Adjust to the timespec convention, which is that
                 tv_nsec is always a positive offset even if tv_sec is
                 negative.  */
              if (sign < 0 && ns)
                {
                  if (INT_SUBTRACT_WRAPV (s, 1, &s))
                    return '?';
                  ns = BILLION - ns;
                }

              lvalp->timespec.tv_sec = s;
              lvalp->timespec.tv_nsec = ns;
              pc->input = p;
              return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER;
            }
          else
            {
              lvalp->textintval.negative = sign < 0;
              lvalp->textintval.value = value;
              lvalp->textintval.digits = p - pc->input;
              pc->input = p;
              return sign ? tSNUMBER : tUNUMBER;
            }
        }

      if (c_isalpha (c))
        {
          char buff[20];
          char *p = buff;
          table const *tp;

          do
            {
              if (p < buff + sizeof buff - 1)
                *p++ = c;
              c = *++pc->input;
            }
          while (c_isalpha (c) || c == '.');

          *p = '\0';
          tp = lookup_word (pc, buff);
          if (! tp)
            {
              if (debugging (pc))
                dbg_printf (_("error: unknown word '%s'\n"), buff);
              return '?';
            }
          lvalp->intval = tp->value;
          return tp->type;
        }

      if (c != '(')
        return to_uchar (*pc->input++);

      idx_t count = 0;
      do
        {
          c = *pc->input++;
          if (c == '\0')
            return c;
          if (c == '(')
            count++;
          else if (c == ')')
            count--;
        }
      while (count != 0);
    }
}

/* Do nothing if the parser reports an error.  */
static int
yyerror (_GL_UNUSED parser_control const *pc,
         _GL_UNUSED char const *s)
{
  return 0;
}

/* If *TM0 is the old and *TM1 is the new value of a struct tm after
   passing it to mktime_z, return true if it's OK.  It's not OK if
   mktime failed or if *TM0 has out-of-range mainline members.
   The caller should set TM1->tm_wday to -1 before calling mktime,
   as a negative tm_wday is how mktime failure is inferred.  */

static bool
mktime_ok (struct tm const *tm0, struct tm const *tm1)
{
  if (tm1->tm_wday < 0)
    return false;

  return ! ((tm0->tm_sec ^ tm1->tm_sec)
            | (tm0->tm_min ^ tm1->tm_min)
            | (tm0->tm_hour ^ tm1->tm_hour)
            | (tm0->tm_mday ^ tm1->tm_mday)
            | (tm0->tm_mon ^ tm1->tm_mon)
            | (tm0->tm_year ^ tm1->tm_year));
}

/* Debugging: format a 'struct tm' into a buffer, taking the parser's
   timezone information into account (if pc != NULL).  */
static char const *
debug_strfdatetime (struct tm const *tm, parser_control const *pc,
                    char *buf, int n)
{
  /* TODO:
     1. find an optimal way to print date string in a clear and unambiguous
        format.  Currently, always add '(Y-M-D)' prefix.
        Consider '2016y01m10d'  or 'year(2016) month(01) day(10)'.

        If the user needs debug printing, it means he/she already having
        issues with the parsing - better to avoid formats that could
        be mis-interpreted (e.g., just YYYY-MM-DD).

     2. Can strftime be used instead?
        depends if it is portable and can print invalid dates on all systems.

     3. Print timezone information ?

     4. Print DST information ?

     5. Print nanosecond information ?

     NOTE:
     Printed date/time values might not be valid, e.g., '2016-02-31'
     or '2016-19-2016' .  These are the values as parsed from the user
     string, before validation.
  */
  int m = nstrftime (buf, n, "(Y-M-D) %Y-%m-%d %H:%M:%S", tm, 0, 0);

  /* If parser_control information was provided (for timezone),
     and there's enough space in the buffer, add timezone info.  */
  if (pc && m < n && pc->zones_seen)
    {
      int tz = pc->time_zone;

      /* Account for DST if tLOCAL_ZONE was seen.  */
      if (pc->local_zones_seen && !pc->zones_seen && 0 < pc->local_isdst)
        tz += 60 * 60;

      char time_zone_buf[TIME_ZONE_BUFSIZE];
      snprintf (&buf[m], n - m, " TZ=%s", time_zone_str (tz, time_zone_buf));
    }
  return buf;
}

static char const *
debug_strfdate (struct tm const *tm, char *buf, int n)
{
  char tm_year_buf[TM_YEAR_BUFSIZE];
  snprintf (buf, n, "(Y-M-D) %s-%02d-%02d",
            tm_year_str (tm->tm_year, tm_year_buf),
            tm->tm_mon + 1, tm->tm_mday);
  return buf;
}

static char const *
debug_strftime (struct tm const *tm, char *buf, int n)
{
  snprintf (buf, n, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, tm->tm_sec);
  return buf;
}

/* If mktime_ok failed, display the failed time values,
   and provide possible hints.  Example output:

    date: error: invalid date/time value:
    date:     user provided time: '(Y-M-D) 2006-04-02 02:45:00'
    date:        normalized time: '(Y-M-D) 2006-04-02 03:45:00'
    date:                                             __
    date:      possible reasons:
    date:        non-existing due to daylight-saving time;
    date:        numeric values overflow;
    date:        missing timezone;
 */
static void
debug_mktime_not_ok (struct tm const *tm0, struct tm const *tm1,
                     parser_control const *pc, bool time_zone_seen)
{
  /* TODO: handle t == -1 (as in 'mktime_ok').  */
  char tmp[DBGBUFSIZE];
  int i;
  const bool eq_sec   = (tm0->tm_sec  == tm1->tm_sec);
  const bool eq_min   = (tm0->tm_min  == tm1->tm_min);
  const bool eq_hour  = (tm0->tm_hour == tm1->tm_hour);
  const bool eq_mday  = (tm0->tm_mday == tm1->tm_mday);
  const bool eq_month = (tm0->tm_mon  == tm1->tm_mon);
  const bool eq_year  = (tm0->tm_year == tm1->tm_year);

  const bool dst_shift = eq_sec && eq_min && !eq_hour
                         && eq_mday && eq_month && eq_year;

  if (!debugging (pc))
    return;

  dbg_printf (_("error: invalid date/time value:\n"));
  dbg_printf (_("    user provided time: '%s'\n"),
              debug_strfdatetime (tm0, pc, tmp, sizeof tmp));
  dbg_printf (_("       normalized time: '%s'\n"),
              debug_strfdatetime (tm1, pc, tmp, sizeof tmp));
  /* The format must be aligned with debug_strfdatetime and the two
     DEBUG statements above.  This string is not translated.  */
  i = snprintf (tmp, sizeof tmp,
                "                                 %4s %2s %2s %2s %2s %2s",
                eq_year ? "" : "----",
                eq_month ? "" : "--",
                eq_mday ? "" : "--",
                eq_hour ? "" : "--",
                eq_min ? "" : "--",
                eq_sec ? "" : "--");
  /* Trim trailing whitespace.  */
  if (0 <= i)
    {
      if (sizeof tmp - 1 < i)
        i = sizeof tmp - 1;
      while (0 < i && tmp[i - 1] == ' ')
        --i;
      tmp[i] = '\0';
    }
  dbg_printf ("%s\n", tmp);

  dbg_printf (_("     possible reasons:\n"));
  if (dst_shift)
    dbg_printf (_("       non-existing due to daylight-saving time;\n"));
  if (!eq_mday && !eq_month)
    dbg_printf (_("       invalid day/month combination;\n"));
  dbg_printf (_("       numeric values overflow;\n"));
  dbg_printf ("       %s\n", (time_zone_seen ? _("incorrect timezone")
                              : _("missing timezone")));
}

/* Parse a date/time string, storing the resulting time value into *RESULT.
   The string itself is pointed to by P.  Return true if successful.
   P can be an incomplete or relative time specification; if so, use
   *NOW as the basis for the returned time.  Default to timezone
   TZDEFAULT, which corresponds to tzalloc (TZSTRING).  */
static bool
parse_datetime_body (struct timespec *result, char const *p,
                     struct timespec const *now, unsigned int flags,
                     timezone_t tzdefault, char const *tzstring)
{
  struct tm tm;
  struct tm tm0;
  char time_zone_buf[TIME_ZONE_BUFSIZE];
  char dbg_tm[DBGBUFSIZE];
  bool ok = false;
  char const *input_sentinel = p + strlen (p);
  char *tz1alloc = NULL;

  /* A reasonable upper bound for the size of ordinary TZ strings.
     Use heap allocation if TZ's length exceeds this.  */
  enum { TZBUFSIZE = 100 };
  char tz1buf[TZBUFSIZE];

  struct timespec gettime_buffer;
  if (! now)
    {
      gettime (&gettime_buffer);
      now = &gettime_buffer;
    }

  time_t Start = now->tv_sec;
  int Start_ns = now->tv_nsec;

  unsigned char c;
  while (c = *p, c_isspace (c))
    p++;

  timezone_t tz = tzdefault;

  /* Store a local copy prior to first "goto".  Without this, a prior use
     below of RELATIVE_TIME_0 on the RHS might translate to an assignment-
     to-temporary, which would trigger a -Wjump-misses-init warning.  */
  const relative_time rel_time_0 = RELATIVE_TIME_0;

  if (strncmp (p, "TZ=\"", 4) == 0)
    {
      char const *tzbase = p + 4;
      idx_t tzsize = 1;
      char const *s;

      for (s = tzbase; *s; s++, tzsize++)
        if (*s == '\\')
          {
            s++;
            if (! (*s == '\\' || *s == '"'))
              break;
          }
        else if (*s == '"')
          {
            timezone_t tz1;
            char *tz1string = tz1buf;
            char *z;
            if (TZBUFSIZE < tzsize)
              {
                tz1alloc = malloc (tzsize);
                if (!tz1alloc)
                  goto fail;
                tz1string = tz1alloc;
              }
            z = tz1string;
            for (s = tzbase; *s != '"'; s++)
              *z++ = *(s += *s == '\\');
            *z = '\0';
            tz1 = tzalloc (tz1string);
            if (!tz1)
              goto fail;
            tz = tz1;
            tzstring = tz1string;

            p = s + 1;
            while (c = *p, c_isspace (c))
              p++;

            break;
          }
    }

  struct tm tmp;
  if (! localtime_rz (tz, &now->tv_sec, &tmp))
    goto fail;

  /* As documented, be careful to treat the empty string just like
     a date string of "0".  Without this, an empty string would be
     declared invalid when parsed during a DST transition.  */
  if (*p == '\0')
    p = "0";

  parser_control pc;
  pc.input = p;
#ifdef GNULIB_PARSE_DATETIME2
  pc.parse_datetime_debug = (flags & PARSE_DATETIME_DEBUG) != 0;
#endif
  if (INT_ADD_WRAPV (tmp.tm_year, TM_YEAR_BASE, &pc.year.value))
    {
      if (debugging (&pc))
        dbg_printf (_("error: initial year out of range\n"));
      goto fail;
    }
  pc.year.digits = 0;
  pc.month = tmp.tm_mon + 1;
  pc.day = tmp.tm_mday;
  pc.hour = tmp.tm_hour;
  pc.minutes = tmp.tm_min;
  pc.seconds.tv_sec = tmp.tm_sec;
  pc.seconds.tv_nsec = Start_ns;
  tm.tm_isdst = tmp.tm_isdst;

  pc.meridian = MER24;
  pc.rel = rel_time_0;
  pc.timespec_seen = false;
  pc.rels_seen = false;
  pc.dates_seen = 0;
  pc.days_seen = 0;
  pc.times_seen = 0;
  pc.local_zones_seen = 0;
  pc.dsts_seen = 0;
  pc.zones_seen = 0;
  pc.year_seen = false;
  pc.debug_dates_seen = false;
  pc.debug_days_seen = false;
  pc.debug_times_seen = false;
  pc.debug_local_zones_seen = false;
  pc.debug_zones_seen = false;
  pc.debug_year_seen = false;
  pc.debug_ordinal_day_seen = false;

#if HAVE_STRUCT_TM_TM_ZONE
  pc.local_time_zone_table[0].name = tmp.tm_zone;
  pc.local_time_zone_table[0].type = tLOCAL_ZONE;
  pc.local_time_zone_table[0].value = tmp.tm_isdst;
  pc.local_time_zone_table[1].name = NULL;

  /* Probe the names used in the next three calendar quarters, looking
     for a tm_isdst different from the one we already have.  */
  {
    int quarter;
    for (quarter = 1; quarter <= 3; quarter++)
      {
        time_t probe;
        if (INT_ADD_WRAPV (Start, quarter * (90 * 24 * 60 * 60), &probe))
          break;
        struct tm probe_tm;
        if (localtime_rz (tz, &probe, &probe_tm) && probe_tm.tm_zone
            && probe_tm.tm_isdst != pc.local_time_zone_table[0].value)
          {
              {
                pc.local_time_zone_table[1].name = probe_tm.tm_zone;
                pc.local_time_zone_table[1].type = tLOCAL_ZONE;
                pc.local_time_zone_table[1].value = probe_tm.tm_isdst;
                pc.local_time_zone_table[2].name = NULL;
              }
            break;
          }
      }
  }
#else
#if HAVE_TZNAME
  {
# if !HAVE_DECL_TZNAME
    extern char *tzname[];
# endif
    int i;
    for (i = 0; i < 2; i++)
      {
        pc.local_time_zone_table[i].name = tzname[i];
        pc.local_time_zone_table[i].type = tLOCAL_ZONE;
        pc.local_time_zone_table[i].value = i;
      }
    pc.local_time_zone_table[i].name = NULL;
  }
#else
  pc.local_time_zone_table[0].name = NULL;
#endif
#endif

  if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
      && ! strcmp (pc.local_time_zone_table[0].name,
                   pc.local_time_zone_table[1].name))
    {
      /* This locale uses the same abbreviation for standard and
         daylight times.  So if we see that abbreviation, we don't
         know whether it's daylight time.  */
      pc.local_time_zone_table[0].value = -1;
      pc.local_time_zone_table[1].name = NULL;
    }

  if (yyparse (&pc) != 0)
    {
      if (debugging (&pc))
        dbg_printf ((input_sentinel <= pc.input
                     ? _("error: parsing failed\n")
                     : _("error: parsing failed, stopped at '%s'\n")),
                    pc.input);
      goto fail;
    }


  /* Determine effective timezone source.  */

  if (debugging (&pc))
    {
      dbg_printf (_("input timezone: "));

      if (pc.timespec_seen)
        fprintf (stderr, _("'@timespec' - always UTC"));
      else if (pc.zones_seen)
        fprintf (stderr, _("parsed date/time string"));
      else if (tzstring)
        {
          if (tz != tzdefault)
            fprintf (stderr, _("TZ=\"%s\" in date string"), tzstring);
          else if (STREQ (tzstring, "UTC0"))
            {
              /* Special case: 'date -u' sets TZ="UTC0".  */
              fprintf (stderr, _("TZ=\"UTC0\" environment value or -u"));
            }
          else
            fprintf (stderr, _("TZ=\"%s\" environment value"), tzstring);
        }
      else
        fprintf (stderr, _("system default"));

      /* Account for DST changes if tLOCAL_ZONE was seen.
         local timezone only changes DST and is relative to the
         default timezone.*/
      if (pc.local_zones_seen && !pc.zones_seen && 0 < pc.local_isdst)
        fprintf (stderr, ", dst");

      if (pc.zones_seen)
        fprintf (stderr, " (%s)", time_zone_str (pc.time_zone, time_zone_buf));

      fputc ('\n', stderr);
    }

  if (pc.timespec_seen)
    *result = pc.seconds;
  else
    {
      if (1 < (pc.times_seen | pc.dates_seen | pc.days_seen | pc.dsts_seen
               | (pc.local_zones_seen + pc.zones_seen)))
        {
          if (debugging (&pc))
            {
              if (pc.times_seen > 1)
                dbg_printf ("error: seen multiple time parts\n");
              if (pc.dates_seen > 1)
                dbg_printf ("error: seen multiple date parts\n");
              if (pc.days_seen > 1)
                dbg_printf ("error: seen multiple days parts\n");
              if (pc.dsts_seen > 1)
                dbg_printf ("error: seen multiple daylight-saving parts\n");
              if ((pc.local_zones_seen + pc.zones_seen) > 1)
                dbg_printf ("error: seen multiple time-zone parts\n");
            }
          goto fail;
        }

      if (! to_tm_year (pc.year, debugging (&pc), &tm.tm_year)
          || INT_ADD_WRAPV (pc.month, -1, &tm.tm_mon)
          || INT_ADD_WRAPV (pc.day, 0, &tm.tm_mday))
        {
          if (debugging (&pc))
            dbg_printf (_("error: year, month, or day overflow\n"));
          goto fail;
        }
      if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen))
        {
          tm.tm_hour = to_hour (pc.hour, pc.meridian);
          if (tm.tm_hour < 0)
            {
              char const *mrd = (pc.meridian == MERam ? "am"
                                 : pc.meridian == MERpm ?"pm" : "");
              if (debugging (&pc))
                dbg_printf (_("error: invalid hour %"PRIdMAX"%s\n"),
                            pc.hour, mrd);
              goto fail;
            }
          tm.tm_min = pc.minutes;
          tm.tm_sec = pc.seconds.tv_sec;
          if (debugging (&pc))
            dbg_printf ((pc.times_seen
                         ? _("using specified time as starting value: '%s'\n")
                         : _("using current time as starting value: '%s'\n")),
                        debug_strftime (&tm, dbg_tm, sizeof dbg_tm));
        }
      else
        {
          tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
          pc.seconds.tv_nsec = 0;
          if (debugging (&pc))
            dbg_printf ("warning: using midnight as starting time: 00:00:00\n");
        }

      /* Let mktime deduce tm_isdst if we have an absolute timestamp.  */
      if (pc.dates_seen | pc.days_seen | pc.times_seen)
        tm.tm_isdst = -1;

      /* But if the input explicitly specifies local time with or without
         DST, give mktime that information.  */
      if (pc.local_zones_seen)
        tm.tm_isdst = pc.local_isdst;

      tm0.tm_sec = tm.tm_sec;
      tm0.tm_min = tm.tm_min;
      tm0.tm_hour = tm.tm_hour;
      tm0.tm_mday = tm.tm_mday;
      tm0.tm_mon = tm.tm_mon;
      tm0.tm_year = tm.tm_year;
      tm0.tm_isdst = tm.tm_isdst;
      tm.tm_wday = -1;

      Start = mktime_z (tz, &tm);

      if (! mktime_ok (&tm0, &tm))
        {
          bool repaired = false;
          bool time_zone_seen = pc.zones_seen != 0;
          if (time_zone_seen)
            {
              /* Guard against falsely reporting errors near the time_t
                 boundaries when parsing times in other time zones.  For
                 example, suppose the input string "1969-12-31 23:00:00 -0100",
                 the current time zone is 8 hours ahead of UTC, and the min
                 time_t value is 1970-01-01 00:00:00 UTC.  Then the min
                 localtime value is 1970-01-01 08:00:00, and mktime will
                 therefore fail on 1969-12-31 23:00:00.  To work around the
                 problem, set the time zone to 1 hour behind UTC temporarily
                 by setting TZ="XXX1:00" and try mktime again.  */

              char tz2buf[sizeof "XXX" - 1 + TIME_ZONE_BUFSIZE];
              tz2buf[0] = tz2buf[1] = tz2buf[2] = 'X';
              time_zone_str (pc.time_zone, &tz2buf[3]);
              timezone_t tz2 = tzalloc (tz2buf);
              if (!tz2)
                {
                  if (debugging (&pc))
                    dbg_printf (_("error: tzalloc (\"%s\") failed\n"), tz2buf);
                  goto fail;
                }
              tm.tm_sec = tm0.tm_sec;
              tm.tm_min = tm0.tm_min;
              tm.tm_hour = tm0.tm_hour;
              tm.tm_mday = tm0.tm_mday;
              tm.tm_mon = tm0.tm_mon;
              tm.tm_year = tm0.tm_year;
              tm.tm_isdst = tm0.tm_isdst;
              tm.tm_wday = -1;
              Start = mktime_z (tz2, &tm);
              repaired = mktime_ok (&tm0, &tm);
              tzfree (tz2);
            }

          if (! repaired)
            {
              debug_mktime_not_ok (&tm0, &tm, &pc, time_zone_seen);
              goto fail;
            }
        }

      char dbg_ord[DBGBUFSIZE];

      if (pc.days_seen && ! pc.dates_seen)
        {
          intmax_t dayincr;
          tm.tm_yday = -1;
          if (! (INT_MULTIPLY_WRAPV ((pc.day_ordinal
                                      - (0 < pc.day_ordinal
                                         && tm.tm_wday != pc.day_number)),
                                     7, &dayincr)
                 || INT_ADD_WRAPV ((pc.day_number - tm.tm_wday + 7) % 7,
                                   dayincr, &dayincr)
                 || INT_ADD_WRAPV (dayincr, tm.tm_mday, &tm.tm_mday)))
            {
              tm.tm_isdst = -1;
              Start = mktime_z (tz, &tm);
            }

          if (tm.tm_yday < 0)
            {
              if (debugging (&pc))
                dbg_printf (_("error: day '%s' "
                              "(day ordinal=%"PRIdMAX" number=%d) "
                              "resulted in an invalid date: '%s'\n"),
                            str_days (&pc, dbg_ord, sizeof dbg_ord),
                            pc.day_ordinal, pc.day_number,
                            debug_strfdatetime (&tm, &pc, dbg_tm,
                                                sizeof dbg_tm));
              goto fail;
            }

          if (debugging (&pc))
            dbg_printf (_("new start date: '%s' is '%s'\n"),
                        str_days (&pc, dbg_ord, sizeof dbg_ord),
                        debug_strfdatetime (&tm, &pc, dbg_tm, sizeof dbg_tm));

        }

      if (debugging (&pc))
        {
          if (!pc.dates_seen && !pc.days_seen)
            dbg_printf (_("using current date as starting value: '%s'\n"),
                        debug_strfdate (&tm, dbg_tm, sizeof dbg_tm));

          if (pc.days_seen && pc.dates_seen)
            dbg_printf (_("warning: day (%s) ignored when explicit dates "
                          "are given\n"),
                        str_days (&pc, dbg_ord, sizeof dbg_ord));

          dbg_printf (_("starting date/time: '%s'\n"),
                      debug_strfdatetime (&tm, &pc, dbg_tm, sizeof dbg_tm));
        }

      /* Add relative date.  */
      if (pc.rel.year | pc.rel.month | pc.rel.day)
        {
          if (debugging (&pc))
            {
              if ((pc.rel.year != 0 || pc.rel.month != 0) && tm.tm_mday != 15)
                dbg_printf (_("warning: when adding relative months/years, "
                              "it is recommended to specify the 15th of the "
                              "months\n"));

              if (pc.rel.day != 0 && tm.tm_hour != 12)
                dbg_printf (_("warning: when adding relative days, "
                              "it is recommended to specify noon\n"));
            }

          int year, month, day;
          if (INT_ADD_WRAPV (tm.tm_year, pc.rel.year, &year)
              || INT_ADD_WRAPV (tm.tm_mon, pc.rel.month, &month)
              || INT_ADD_WRAPV (tm.tm_mday, pc.rel.day, &day))
            {
              if (debugging (&pc))
                dbg_printf (_("error: %s:%d\n"), __FILE__, __LINE__);
              goto fail;
            }
          tm.tm_year = year;
          tm.tm_mon = month;
          tm.tm_mday = day;
          tm.tm_hour = tm0.tm_hour;
          tm.tm_min = tm0.tm_min;
          tm.tm_sec = tm0.tm_sec;
          tm.tm_isdst = tm0.tm_isdst;
          tm.tm_wday = -1;
          Start = mktime_z (tz, &tm);
          if (tm.tm_wday < 0)
            {
              if (debugging (&pc))
                dbg_printf (_("error: adding relative date resulted "
                              "in an invalid date: '%s'\n"),
                            debug_strfdatetime (&tm, &pc, dbg_tm,
                                                sizeof dbg_tm));
              goto fail;
            }

          if (debugging (&pc))
            {
              dbg_printf (_("after date adjustment "
                            "(%+"PRIdMAX" years, %+"PRIdMAX" months, "
                            "%+"PRIdMAX" days),\n"),
                          pc.rel.year, pc.rel.month, pc.rel.day);
              dbg_printf (_("    new date/time = '%s'\n"),
                          debug_strfdatetime (&tm, &pc, dbg_tm,
                                              sizeof dbg_tm));

              /* Warn about crossing DST due to time adjustment.
                 Example: https://bugs.gnu.org/8357
                 env TZ=Europe/Helsinki \
                   date --debug \
                        -d 'Mon Mar 28 00:36:07 2011 EEST 1 day ago'

                 This case is different than DST changes due to time adjustment,
                 i.e., "1 day ago" vs "24 hours ago" are calculated in different
                 places.

                 'tm0.tm_isdst' contains the DST of the input date,
                 'tm.tm_isdst' is the normalized result after calling
                 mktime (&tm).
              */
              if (tm0.tm_isdst != -1 && tm.tm_isdst != tm0.tm_isdst)
                dbg_printf (_("warning: daylight saving time changed after "
                              "date adjustment\n"));

              /* Warn if the user did not ask to adjust days but mday changed,
                 or
                 user did not ask to adjust months/days but the month changed.

                 Example for first case:
                 2016-05-31 + 1 month => 2016-06-31 => 2016-07-01.
                 User asked to adjust month, but the day changed from 31 to 01.

                 Example for second case:
                 2016-02-29 + 1 year => 2017-02-29 => 2017-03-01.
                 User asked to adjust year, but the month changed from 02 to 03.
              */
              if (pc.rel.day == 0
                  && (tm.tm_mday != day
                      || (pc.rel.month == 0 && tm.tm_mon != month)))
                {
                  dbg_printf (_("warning: month/year adjustment resulted in "
                                "shifted dates:\n"));
                  char tm_year_buf[TM_YEAR_BUFSIZE];
                  dbg_printf (_("     adjusted Y M D: %s %02d %02d\n"),
                              tm_year_str (year, tm_year_buf), month + 1, day);
                  dbg_printf (_("   normalized Y M D: %s %02d %02d\n"),
                              tm_year_str (tm.tm_year, tm_year_buf),
                              tm.tm_mon + 1, tm.tm_mday);
                }
            }

        }

      /* The only "output" of this if-block is an updated Start value,
         so this block must follow others that clobber Start.  */
      if (pc.zones_seen)
        {
          bool overflow = false;
#ifdef HAVE_TM_GMTOFF
          long int utcoff = tm.tm_gmtoff;
#else
          time_t t = Start;
          struct tm gmt;
          int utcoff = (gmtime_r (&t, &gmt)
                        ? tm_diff (&tm, &gmt)
                        : (overflow = true, 0));
#endif
          intmax_t delta;
          overflow |= INT_SUBTRACT_WRAPV (pc.time_zone, utcoff, &delta);
          time_t t1;
          overflow |= INT_SUBTRACT_WRAPV (Start, delta, &t1);
          if (overflow)
            {
              if (debugging (&pc))
                dbg_printf (_("error: timezone %d caused time_t overflow\n"),
                            pc.time_zone);
              goto fail;
            }
          Start = t1;
        }

      if (debugging (&pc))
        {
          intmax_t Starti = Start;
          dbg_printf (_("'%s' = %"PRIdMAX" epoch-seconds\n"),
                      debug_strfdatetime (&tm, &pc, dbg_tm, sizeof dbg_tm),
                      Starti);
        }


      /* Add relative hours, minutes, and seconds.  On hosts that support
         leap seconds, ignore the possibility of leap seconds; e.g.,
         "+ 10 minutes" adds 600 seconds, even if one of them is a
         leap second.  Typically this is not what the user wants, but it's
         too hard to do it the other way, because the time zone indicator
         must be applied before relative times, and if mktime is applied
         again the time zone will be lost.  */
      {
        intmax_t orig_ns = pc.seconds.tv_nsec;
        intmax_t sum_ns = orig_ns + pc.rel.ns;
        int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
        int d4 = (sum_ns - normalized_ns) / BILLION;
        intmax_t d1, t1, d2, t2, t3;
        time_t t4;
        if (INT_MULTIPLY_WRAPV (pc.rel.hour, 60 * 60, &d1)
            || INT_ADD_WRAPV (Start, d1, &t1)
            || INT_MULTIPLY_WRAPV (pc.rel.minutes, 60, &d2)
            || INT_ADD_WRAPV (t1, d2, &t2)
            || INT_ADD_WRAPV (t2, pc.rel.seconds, &t3)
            || INT_ADD_WRAPV (t3, d4, &t4))
          {
            if (debugging (&pc))
              dbg_printf (_("error: adding relative time caused an "
                            "overflow\n"));
            goto fail;
          }

        result->tv_sec = t4;
        result->tv_nsec = normalized_ns;

        if (debugging (&pc)
            && (pc.rel.hour | pc.rel.minutes | pc.rel.seconds | pc.rel.ns))
          {
            dbg_printf (_("after time adjustment (%+"PRIdMAX" hours, "
                          "%+"PRIdMAX" minutes, "
                          "%+"PRIdMAX" seconds, %+d ns),\n"),
                        pc.rel.hour, pc.rel.minutes, pc.rel.seconds,
                        pc.rel.ns);
            intmax_t t4i = t4;
            dbg_printf (_("    new time = %"PRIdMAX" epoch-seconds\n"), t4i);

            /* Warn about crossing DST due to time adjustment.
               Example: https://bugs.gnu.org/8357
               env TZ=Europe/Helsinki           \
               date --debug                                             \
               -d 'Mon Mar 28 00:36:07 2011 EEST 24 hours ago'

               This case is different than DST changes due to days adjustment,
               i.e., "1 day ago" vs "24 hours ago" are calculated in different
               places.

               'tm.tm_isdst' contains the date after date adjustment.  */
            struct tm lmt;
            if (tm.tm_isdst != -1 && localtime_rz (tz, &result->tv_sec, &lmt)
                && tm.tm_isdst != lmt.tm_isdst)
              dbg_printf (_("warning: daylight saving time changed after "
                            "time adjustment\n"));
          }
      }
    }

  if (debugging (&pc))
    {
      /* Special case: using 'date -u' simply set TZ=UTC0 */
      if (! tzstring)
        dbg_printf (_("timezone: system default\n"));
      else if (STREQ (tzstring, "UTC0"))
        dbg_printf (_("timezone: Universal Time\n"));
      else
        dbg_printf (_("timezone: TZ=\"%s\" environment value\n"), tzstring);

      intmax_t sec = result->tv_sec;
      int nsec = result->tv_nsec;
      dbg_printf (_("final: %"PRIdMAX".%09d (epoch-seconds)\n"),
                  sec, nsec);

      struct tm gmt, lmt;
      bool got_utc = !!gmtime_r (&result->tv_sec, &gmt);
      if (got_utc)
        dbg_printf (_("final: %s (UTC)\n"),
                    debug_strfdatetime (&gmt, NULL,
                                        dbg_tm, sizeof dbg_tm));
      if (localtime_rz (tz, &result->tv_sec, &lmt))
        {
#ifdef HAVE_TM_GMTOFF
          bool got_utcoff = true;
          long int utcoff = lmt.tm_gmtoff;
#else
          bool got_utcoff = got_utc;
          int utcoff;
          if (got_utcoff)
            utcoff = tm_diff (&lmt, &gmt);
#endif
          if (got_utcoff)
            dbg_printf (_("final: %s (UTC%s)\n"),
                        debug_strfdatetime (&lmt, NULL, dbg_tm, sizeof dbg_tm),
                        time_zone_str (utcoff, time_zone_buf));
          else
            dbg_printf (_("final: %s (unknown time zone offset)\n"),
                        debug_strfdatetime (&lmt, NULL, dbg_tm, sizeof dbg_tm));
        }
    }

  ok = true;

 fail:
  if (tz != tzdefault)
    tzfree (tz);
  free (tz1alloc);
  return ok;
}

#ifdef GNULIB_PARSE_DATETIME2
/* Parse a date/time string, storing the resulting time value into *RESULT.
   The string itself is pointed to by P.  Return true if successful.
   P can be an incomplete or relative time specification; if so, use
   *NOW as the basis for the returned time.  Default to timezone
   TZDEFAULT, which corresponds to tzalloc (TZSTRING).  */
bool
parse_datetime2 (struct timespec *result, char const *p,
                 struct timespec const *now, unsigned int flags,
                 timezone_t tzdefault, char const *tzstring)
{
  return parse_datetime_body (result, p, now, flags, tzdefault, tzstring);
}
#endif


/* The plain interface: run with debug=false and the default timezone.   */
bool
parse_datetime (struct timespec *result, char const *p,
                struct timespec const *now)
{
  char const *tzstring = getenv ("TZ");
  timezone_t tz = tzalloc (tzstring);
  if (!tz)
    return false;
  bool ok = parse_datetime_body (result, p, now, 0, tz, tzstring);
  tzfree (tz);
  return ok;
}

#if TEST

int
main (int ac, char **av)
{
  char buff[BUFSIZ];

  printf ("Enter date, or blank line to exit.\n\t> ");
  fflush (stdout);

  buff[BUFSIZ - 1] = '\0';
  while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
    {
      struct timespec d;
      struct tm const *tm;
      if (! parse_datetime (&d, buff, NULL))
        printf ("Bad format - couldn't convert.\n");
      else if (! (tm = localtime (&d.tv_sec)))
        {
          intmax_t sec = d.tv_sec;
          printf ("localtime (%"PRIdMAX") failed\n", sec);
        }
      else
        {
          int ns = d.tv_nsec;
          char tm_year_buf[TM_YEAR_BUFSIZE];
          printf ("%s-%02d-%02d %02d:%02d:%02d.%09d\n",
                  tm_year_str (tm->tm_year, tm_year_buf),
                  tm->tm_mon + 1, tm->tm_mday,
                  tm->tm_hour, tm->tm_min, tm->tm_sec, ns);
        }
      printf ("\t> ");
      fflush (stdout);
    }
  return 0;
}
#endif /* TEST */